CLASS 212, TRAVERSING HOISTS |
272 | HAVING MEANS TO PREVENT OR DAMPEN LOAD OSCILLATIONS: |
This subclass is indented under the class definition. Subject matter including means to arrest or reduce the periodic
vertical or swinging movement of the load.
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273 | . Antisway (i.e., horizontal movements): |
This subclass is indented under subclass 272. Subject matter wherein means are provided to arrest or reduce the undesired swinging movement about an axis orthogonal to a vertical axis. | |
274 | .. By triangulation of load cables: |
This subclass is indented under subclass 273. Subject matter wherein the arresting or movement reducing
means comprise at least two load lifting cables or cable portions
arranged to diverge or converge at the load.
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275 | .. By cyclic control of trolley acceleration or deceleration: |
This subclass is indented under subclass 273. Subject matter including a load depending from a trolley
with a traveling velocity and means to control the velocity of the
trolley to reduce load oscillations.
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276 | HAVING RANDOM CONDITION SENSOR COMBINED WITH AN INDICATOR OR ALARM OR CONTROLLING MEANS OR DISABLING MEANS: |
This subclass is indented under the class definition. Subject matter including means for detecting the random
occurrence of a predetermined situation and releasing, terminating,
or modifying a flow of energy which in turn either produces a visually
or audibly perceptible manifestation of the event or regulates a
controlling or disabling means (e.g., motor, valve, solenoid, etc.).
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277 | . Senses crane tilt (e.g., outrigger sensors): |
This subclass is indented under subclass 276. Subject matter wherein the apparatus is a crane and the
detecting means is responsive to movement of the crane about a horizontal
axis.
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278 | . Means determining overloading produced by load (e.g., strain gauges): |
This subclass is indented under subclass 276. Subject matter comprising means which directly determine
overloading, such as strain gauges, or means to compute mechanically
or electronically, the overturning moment of the hoist using two
or more sensed variables.
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279 | . Sensor regulates counterweight or counterbalancing means: |
This subclass is indented under subclass 276. Subject matter wherein the detecting means and the controller
governs either (a) the movement of a mass employed to offset the
weight of the load or (b) operation of a dynamic device to exert
a force in opposition to that exerted by the load.
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280 | . Boom movement stops responsive to overtravel or proximity to powerline: |
This subclass is indented under subclass 276. Subject matter wherein stopping or disabling occurs in response
to either (a) the pivotal movement or telescopic extension of a
boom* beyond a predetermined limit or (b) the electromagnetic
field of an adjacent electrical power transmission wire.
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281 | . Hoisting stops upon load being raised to a predetermined position (e.g., anti-two blocking): |
This subclass is indented under subclass 276. Subject matter wherein the raising or lowering of a load
lifting cable is halted in response to the load being moved to
a predetermined position.
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282 | WITH MECHANICAL INDICATOR: |
This subclass is indented under the class definition. Subject matter combined with mechanically activated means
for producing a visual manifestation of a property or occurrence.
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283 | . With weight indicator: |
This subclass is indented under subclass 282. Subject matter wherein means are provided to indicate the
mass of the load.
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284 | WITH MOTOR CONTROL: |
This subclass is indented under the class definition. Subject matter comprising means to initiate, terminate,
or modify a flow of energy to control a power means.
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285 | . Remote control or at dual control positions: |
This subclass is indented under subclass 284. Subject matter wherein the means for controlling the power
means is (a) movable to or provided at a location substantially
removed from the remainder of the apparatus or (b) located at two
separate control stations.
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286 | . Cyclic operation: |
This subclass is indented under subclass 284. Subject matter wherein the power means is controlled in
response to a predetermined periodic event.
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287 | . Manual fluid valve actuator: |
This subclass is indented under subclass 284. Subject matter including means adapted to be manipulated
by an operator to stop or start the flow of a working fluid to a
fluid motor.
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288 | .. Plural fluid motors: |
This subclass is indented under subclass 287. Subject matter including multiple power means which convert the energy of a working fluid to mechanical movement of a working member, the flow of working fluid to each power means being controlled by a manually actuated fluid valve. | |
289 | ... Controlled by common actuator: |
This subclass is indented under subclass 288. Subject matter wherein the means adapted to be engaged by an operator comprises a single member by which the flow of working fluid to plural power means may be controlled. | |
290 | . In control cab: |
This subclass is indented under subclass 284. Subject matter wherein the means to control the power means
is located in an enclosure or partial enclosure for an operator.
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291 | HAVING OPERATOR SUPPORT OR CAB: |
This subclass is indented under the class definition. Subject matter including means adapted to carry a person controlling the operation of the apparatus. | |
292 | BOOM POSITION LOCK: |
This subclass is indented under the class definition. Subject matter including a boom or boom sections and means to selectively prevent movement of the boom or boom sections. | |
293 | HAVING SNUBBER OR BOOM BACKSWING STOP: |
This subclass is indented under the class definition. Subject matter wherein (a) a damper is provided to prevent
sudden uncontrolled upward or backward movement of the boom* or
(b) means are provided to limit upward or backward movement of the
boom by direct contact.
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166 | CLOSURE REMOVER: |
This subclass is indented under the class definition. Apparatus comprising means specifically adapted for raising
a door or other closure from above and shifting it laterally.
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167 | WITH HAUL-IN LINE: |
This subclass is indented under the class definition. Apparatus wherein an elongated flexible means is provided
in addition to the load-supporting flexible member for pulling the
load horizontally across a supporting surface to the vicinity of
the load support, the load contacting the supporting surface as
it is pulled to the load support.
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168 | WITH MEANS TO PROJECT LOAD ENGAGER BEYOND END OF BOOM: |
This subclass is indented under the class definition. Apparatus wherein means are provided for propelling or positioning a load-engaging means suspended by flexible cable beneath a boom* outwardly from its position under the boom toward the load. | |
169 | GROUND WHEEL OPERATED: |
This subclass is indented under the class definition. Apparatus including a wheel which is caused to contact a surface upon which the apparatus is supported and which rotates in response to movement of the apparatus across the surface, and wherein power transmission means is provided to utilize the wheel’s rotational motion to operate the hoist (e.g., hoisting drum, boom*, trolley*, etc.). | |
170 | HAVING CLUTCH OR VARIABLE SPEED TRANSMISSION: |
This subclass is indented under the class definition. Apparatus including either (a) a selectively engageable
drive between a motor and a load moving mechanism adapted to be
driven by the motor, or (b) means to vary the ratio of the speed
at the output of a motor to the speed at which a load-moving mechanism
is driven by the motor.
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171 | . Traveling bridge: |
This subclass is indented under subclass 170. Apparatus comprising a bridge* supported above a surface for translational movement over the surface, and wherein the selectively engageable coupling or ratio varying means is provided between a motor and a mechanism for driving the bridge or a mechanism thereof. | |
172 | . Power takeoff: |
This subclass is indented under subclass 170. Apparatus comprising a selectively engageable drive connection between the motor of a motor-driven vehicle and a load-moving mechanism of a traversing hoist. | |
173 | . Variable speed transmission: |
This subclass is indented under subclass 170. Apparatus including means to vary the ratio of the speed
at the output of a motor to the speed at which a load moving mechanism
is driven by the motor.
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174 | . Including means to selectively couple plural hoist functions to common power shaft: |
This subclass is indented under subclass 170. Apparatus including means by which the working member of a motor may be engaged and disengaged with each of a plurality of load-moving mechanisms. | |
175 | HAVING MEANS FACILITATING ASSEMBLY OR DISASSEMBLY: |
This subclass is indented under the class definition. Apparatus including means to permit the ready removal or
replacement of either (a) an element or subassembly of the apparatus
from or on the remainder thereof, or (b) the entire traversing hoist
from or on a supporting structure.
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176 | . Of sectional vertical support from boom: |
This subclass is indented under subclass 175. Apparatus including an elongated vertically disposed boom* support
comprising a plurality of serially arranged segments connected longitudinally
in end-to-end fashion, and wherein the connections between the segments
permit the ready assembly or disassembly of one segment to or from
another.
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177 | . Of boom sections: |
This subclass is indented under subclass 175. Apparatus including a boom* having means to permit
the ready removal or replacement of a portion of the boom from another
portion.
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178 | . Of counterweight from hoist: |
This subclass is indented under subclass 175. Apparatus including a mass specifically employed to offset the weight of the load and means to permit the ready removal or replacement of the mass from or on the load support. | |
179 | . Of traversing hoist from support: |
This subclass is indented under subclass 175. Apparatus including means to permit the ready removal or replacement of a traversing hoist from or on a supporting structure. | |
180 | .. Vehicle support: |
This subclass is indented under subclass 179. Apparatus wherein the supporting structure is provided with ground-engaging means to render it ambulant. | |
181 | ... And having motor to swing boom: |
This subclass is indented under subclass 180. Apparatus having a pivotally mounted boom* and power means to pivot the boom. | |
294 | ADJUSTABLE TO TRANSPORT OR NONUSE POSITION (E.G., COLLAPSIBLE): |
This subclass is indented under the class definition. Subject matter wherein means are provided whereby either
the orientation or dimension of an element of the apparatus may
be changed to specifically render the apparatus or a portion thereof
more easily transportable or storable.
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295 | . Crane boom supported by foldable or collapsible tower: |
This subclass is indented under subclass 294. Subject matter including a boom* supported in operative
position by a vertically disposed elongated member and means are
provided whereby either the orientation or a dimension of the vertically
extending member may be changed to render the apparatus more easily transportable
or storable.
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296 | .. Extensible tower of relatively sliding sections: |
This subclass is indented under subclass 295. Subject matter including a vertically disposed elongated
boom* support consisting of telescoping segments whereby
the length of the support may be changed.
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297 | .. Hydraulically pivoted tower or tower sections: |
This subclass is indented under subclass 295. Subject matter wherein the elongated boom* support
is (a) pivoted to or from a horizontal transport attitude by pressure
of a working fluid or (b) comprised of a plurality of longitudinal
segments pivotally connected in end-to-end fashion.
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298 | . Collapsible inverted "V" frame supports boom rigging: |
This subclass is indented under subclass 294. Subject matter including a boom* and a system of cables or the like to raise and lower the boom, wherein the cables are in turn supported by or guided over a member in the shape of a vertical inverted "V", which is mounted on a base by means which permit the "V" to be pivoted substantially parallel to the boom. | |
299 | . Collapsible or foldable boom: |
This subclass is indented under subclass 294. Subject matter including a boom* and means by which
either the orientation of the boom or dimension of the boom can
be changed to render the device more easily transportable or storable.
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300 | .. Vertically swinging boom having pivoted sections: |
This subclass is indented under subclass 299. Subject matter wherein the boom* is pivoted to a
support structure for movement about a horizontal axis, and wherein
the boom comprises a plurality of sections hingedly connected in
end-to-end fashion whereby a section may be swung to a position
alongside another section for transport or storage.
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301 | . Vehicle stabilizing means: |
This subclass is indented under subclass 294. Subject matter including means to prevent undesired movement of the apparatus during the operation thereof, said means being provided with a portion for engaging a support surface, the apparatus including a position to render it more easily transportable. | |
302 | .. Lowered from vehicle body (e.g., outrigger): |
This subclass is indented under subclass 301. Subject matter wherein a ground engaging stabilizing means
is extended downwardly from the vehicle body.
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303 | ... Gear or screw drive to extend foot: |
This subclass is indented under subclass 302. Subject matter wherein said ground engaging stabilizing means is attached to the vehicle body and includes a portion which is extensible to engage a support surface by means of a toothed or threaded drive. | |
304 | ... Hydraulic means to extend foot: |
This subclass is indented under subclass 302. Subject matter wherein said ground engaging stabilizing means is attached to the vehicle body and includes a portion which is extensible to engage a support surface by fluidic means. | |
305 | ... Pivoted lever or link to extend foot: |
This subclass is indented under subclass 302. Subject matter wherein said ground engaging stabilizing means is attached to the vehicle body and includes a portion which is extensible to engage a support surface by means of a fulcrumed arm or interconnector. | |
306 | .. Boom or mast attached: |
This subclass is indented under subclass 301. Subject matter wherein said stabilizing means is connected to a boom or mast. | |
307 | SHIP MOUNTED OR FLOATING (E.G., A CRANE FIXED TO A PLATFORM ADAPTED TO FLOAT): |
This subclass is indented under the class definition. Subject matter peculiarly adapted to be fixed to a marine
vessel or adapted to remain suspended within or on the surface of
a fluid without sinking.
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308 | . Including counterweight or means to compensate for list, trim or skew of vessel: |
This subclass is indented under subclass 307. Subject matter including either (a) a mass specifically
employed to offset the weight of the load or (b) means to neutralize
the effect of a tilting attitude about the longitudinal, lateral,
or vertical axis of the vessel or platform.
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309 | . Having horizontally and vertically swinging boom: |
This subclass is indented under subclass 307. Subject matter including a boom* pivotally mounted
on the vessel or platform for movement about two mutually orthogonal
axes, one disposed vertically and the other horizontally.
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310 | .. Cable actuated horizontally and vertically: |
This subclass is indented under subclass 309. Subject matter including at least one flexible rope, or
rope-like element, for swinging the boom about both axes.
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311 | ... Plural booms: |
This subclass is indented under subclass 310. Subject matter including additional cable-actuated swiveled
booms* carried on the marine vessel or platform.
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195 | HAVING COUNTERWEIGHT OR COUNTERBALANCING MEANS: |
This subclass is indented under the class definition. Apparatus including (a) a mass specifically employed to
offset the weight of the load, or (b) a dynamic device for exerting
a force in opposition to that exerted by the load.
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196 | . Counterweight movable relative to load support: |
This subclass is indented under subclass 195. Apparatus wherein the mass is mounted for movement with
respect to the load support (e.g., boom*) to compensate
for varying tilting effects of the load on the apparatus.
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197 | .. Along rectilinear path: |
This subclass is indented under subclass 196. Apparatus wherein the mass is mounted for movement along a straight line with respect to the support above the load. | |
198 | ... On wheeled carriage: |
This subclass is indented under subclass 197. Apparatus wherein the mass is either provided with wheels or is carried by a wheeled vehicle, and is adapted to travel along a guideway provided with the apparatus. | |
199 | HAVING BOOM SHIFTABLE VERTICALLY ALONG A LINEAR PATH: |
This subclass is indented under the class definition. Apparatus including a boom* and structure supporting
the boom which permits up or down translational movement of the
entire boom along a rectilinear path.
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200 | . Movable along nonvertical rectilinear path: |
This subclass is indented under subclass 199. Apparatus wherein the boom* is mounted for movement along an inclined path and the up and down movement of the boom is the vertical component of motion along the inclined path. | |
201 | . Length of hoisting cable between boom and load decreases automatically as boom is raised: |
This subclass is indented under subclass 199. Apparatus wherein the load is suspended beneath the boom* by an elongated flaccid strand and means are provided whereby the strand is drawn in toward the boom as the boom moves upwardly. | |
202 | . Vertically spaced fastening means along boom support: |
This subclass is indented under subclass 199. Apparatus wherein the structure supporting the boom* is provided with a plurality of securing means spaced vertically along the structure whereby the boom is supported at a selected one of a plurality of positions on the support. | |
203 | . Fluid actuated: |
This subclass is indented under subclass 199. Apparatus wherein means are provided to move the boom* up
or down relative to its support by application of a liquid or gas
under pressure.
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204 | . By mounting on vertically extensible support: |
This subclass is indented under subclass 199. Apparatus wherein the structure supporting the boom* comprises
a plurality of interconnected segments movable longitudinally with
respect to one another to increase the length of the support and
thereby raise the boom supported thereon.
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312 | TRAVELING BRIDGE: |
This subclass is indented under the class definition. Subject matter comprising an elongated member supported
horizontally at two spaced points above a surface for translational
movement across the surface, and which serves as or bears a track
or guide between the supporting points on which a load-supporting
trolley* or another traveling bridge* is adapted
to move.
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313 | . Flexible: |
This subclass is indented under subclass 312. Subject matter wherein the member, movably supported at
two points, comprises an elongated pliant member.
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314 | . Having vertically adjustable track: |
This subclass is indented under subclass 312. Subject matter wherein means are provided to raise or lower
the track or guide with respect to the surface over which the bridge* translates.
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315 | . Supporting second traveling bridge: |
This subclass is indented under subclass 312. Subject matter including a second bridge* carried by the first and mounted for translational movement along the track or guide of the first bridge. | |
316 | . Having plural trolleys: |
This subclass is indented under subclass 312. Subject matter wherein two trolleys* are provided which are concurrently supported for movement along the track or guide of the traveling bridge. | |
317 | . Having vertically or horizontally swinging boom on bridge or trolley: |
This subclass is indented under subclass 312. Subject matter wherein a boom* is pivotally attached
to (a) the traveling bridge* or (b) a trolley* adapted
to travel along the bridge.
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318 | . Having horizontally swingable track- or load-rotating means on trolley: |
This subclass is indented under subclass 312. Subject matter wherein (a) the traveling bridge* comprises
an elongated member having a track or guide mounted thereon for
pivotal movement about a vertical axis or (b) a trolley* is
carried by the traveling bridge and comprises a first portion engaging
track or guide and a second pivotally mounted portion from which
the load is suspended.
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319 | . Having load engager mounted for guided vertical movement beneath trolley: |
This subclass is indented under subclass 312. Subject matter including a load carrier beneath a rigid
vertically oriented member which engages structure on the trolley* to
guide the load carrier in up-and-down movement with respect to the
trolley.
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320 | . Motor fixed to bridge-supporting structure: |
This subclass is indented under subclass 312. Subject matter including a power means for raising or traversing the load. The power means is mounted adjacent the traveling bridge whereby the bridge translates with respect to the power means. | |
321 | . Trolley mounted motor for trolley traversal via cable means: |
This subclass is indented under subclass 312. Subject matter wherein the traveling bridge* carries a trolley* on which is mounted a power means employed to pull an elongated flexible member, thereby moving the trolley along the bridge. | |
322 | . Bridge mounted motor for trolley traversal via cable means: |
This subclass is indented under subclass 312. Subject matter wherein the bridge carries a trolley which is moved with a flexible rope-like member by a motor supported on the bridge and remote from the trolley. | |
323 | . Bridge mounted motor for load lifting: |
This subclass is indented under subclass 312. Subject matter wherein the load carried by the trolley is lowered and raised by means of a motor supported on the bridge and remote from the trolley. | |
324 | . Having vertical supporting legs (e.g., gantry): |
This subclass is indented under subclass 312. Subject matter wherein the bridge* is supported
above the surface by two elongated vertical-supporting members,
each of which is fixed at its upper end to the elongated member of
the bridge and is provided at the lower end with means to facilitate
movement of the bridge over a supporting surface.
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325 | .. Overhanging end: |
This subclass is indented under subclass 324. Subject matter including track or guiding structure for a trolley* which extends beyond one of the elongated vertical-supporting members in cantilever fashion. | |
326 | .. Having specific engager for load: |
This subclass is indented under subclass 324. Subject matter wherein significance is attributed to the
particular structure for carrying the load.
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327 | . Having specific engager for load: |
This subclass is indented under subclass 312. Subject matter wherein significance is attributed to the
particular structure for carrying the load.
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223 | HAVING HORIZONTALLY SWINGING BOOM OR BRIDGE: |
This subclass is indented under the class definition. Apparatus comprising a boom* or a bridge* which
is mounted to a support for movement about a vertical axis.
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224 | . Boom mounted for guided horizontal translation (e.g., trolley mounted): |
This subclass is indented under subclass 223. Apparatus comprising a boom* and means on the boom
or the boom support for engaging a guideway whereby the boom translates
along the guideway.
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225 | . Having trolley thereon: |
This subclass is indented under subclass 223. Apparatus comprising a bridge* or a boom* having
a track or guideway along which a load-supporting trolley* is
adapted to move.
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226 | .. Having vertical support remote from pivot (i.e., swinging bridge): |
This subclass is indented under subclass 225. Apparatus including a bridge* pivotally mounted
for horizontally swinging movement at one of the two spaced supporting
points, and wherein the other supporting point either (a) rides
over a horizontally extending vertical support, or (b) comprises
a leg fixed to the bridge at one end and is provided with means to
facilitate its movement over a surface or guideway at the other
end.
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227 | .. And vertically swinging: |
This subclass is indented under subclass 225. Apparatus wherein the boom* or bridge* is also
capable of pivotal movement about a horizontal axis.
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228 | .. And means acting independently of hoist mechanism to shift trolley: |
This subclass is indented under subclass 225. Apparatus including means other than load-lifting means for moving the trolley* along the guideway. | |
230 | . Extensible by movement of boom or boom segment along longitudinal axis thereof: |
This subclass is indented under subclass 223. Apparatus including a horizontally swinging boom* and
wherein either (a) means are provided which permits translational
movement of the boom along its longitudinal axis and relative to
the boom-supporting structure, or (b) the boom consists of a plurality
of interconnected segments slidably related to one another whereby
the effective length of the boom may be changed.
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231 | .. And vertically swinging: |
This subclass is indented under subclass 230. Apparatus wherein the boom* is also capable of
pivotal movement about a horizontal axis.
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232 | . And vertically swinging: |
This subclass is indented under subclass 223. Apparatus wherein the boom* is also capable of
pivotal movement about a horizontal axis.
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233 | .. Plural booms: |
This subclass is indented under subclass 232. Apparatus including second boom* mounted for movement
about vertical and horizontal axes and having its own load engager
or flexible member suspended therefrom.
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234 | .. With adjacent load-supporting rack: |
This subclass is indented under subclass 232. Apparatus wherein a supporting means is provided adjacent
the boom* and adapted to receive the load therefrom.
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235 | .. Including means for sluing boom as it is swung vertically: |
This subclass is indented under subclass 232. Apparatus wherein means are provided for simultaneously swinging the boom* about a vertical axis in response to the boom’s movement about a horizontal axis. | |
236 | .. Including plural actuating means converging toward boom tip to effect both horizontal and vertical swinging: |
This subclass is indented under subclass 232. Apparatus including two elongated members, each of which
engages the boom* adjacent the point from which the load
is suspended, and diverges to engage either the boom support or points
fixed relative thereto, wherein means are provided to selectively
change the length of the members to pivot the boom about both horizontal
and vertical axes.
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237 | .. Including means to swing boom vertically: |
This subclass is indented under subclass 232. Apparatus including a motor, power transmission, or a force
multiplying linkage for swinging the boom* about a horizontal
axis.
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238 | ... Fluid-actuated ram: |
This subclass is indented under subclass 237. Apparatus wherein the motor comprises a relatively reciprocating
piston and cylinder actuated by fluid pressure.
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239 | ... Flexible cable: |
This subclass is indented under subclass 237. Apparatus wherein the means for swinging the boom* vertically includes a greatly elongated strand of flaccid material. | |
240 | .... Having passage for luffing cable through boom supporting member: |
This subclass is indented under subclass 239. Apparatus wherein the support on which the boom* is
swingably mounted is provided with a passageway through which the
strand passes to swing the boom vertically.
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241 | .... Human or animal powered: |
This subclass is indented under subclass 239. Apparatus wherein means are provided by which a person or
animal may apply a force to the strand of flaccid material to swing
the boom vertically.
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242 | .. Having specific engager for load: |
This subclass is indented under subclass 232. Apparatus wherein significance is attributed to a particular
device for engaging and retaining the load.
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243 | ... Grab: |
This subclass is indented under subclass 242. Apparatus wherein the load handler comprises a plurality
of relatively movable members for gripping the load.
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245 | . And means to swing boom horizontally: |
This subclass is indented under subclass 223. Apparatus including a motor, power transmission, or force
multiplying linkage to move the boom* about a vertical
axis.
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246 | .. Including flexible member driving gear or pulley having axis collinear with boom pivot: |
This subclass is indented under subclass 245. Apparatus including a member of flaccid material which partially encircles a disc or annular member having an axis of rotation on a vertical line defining the axis about which the boom* swings, and means are provided to engage and drive the endless or elongated member whereby the boom is swung horizontally about said axis. | |
247 | .. Gear drive: |
This subclass is indented under subclass 245. Apparatus wherein the means to swing the boom* horizontally comprises a power transmission which includes a disc or annular member having a tooth surface which is interdigitated with a second toothed member whereby movement of one of the members causes movement of the other member. | |
248 | ... Including rack or worm: |
This subclass is indented under subclass 247. Apparatus wherein the second toothed member comprises either (a) a rectangular member having teeth formed across a longitudinal face and which is reciprocated to cause rotation of the disc or annular member, or (b) an elongated cylindrical member having helical teeth on its periphery and which is rotated about its longitudinal axis to cause rotation of the disc or annular member. | |
249 | .. Human or animal powered: |
This subclass is indented under subclass 245. Apparatus wherein means are provided by which a person or
animal may apply a force to swing the boom* horizontally.
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250 | . Having fluid ram directly actuating load cable or sheave therefor: |
This subclass is indented under subclass 223. Apparatus including a relatively reciprocating piston and cylinder which are actuated by fluid pressure and are employed to lift the load by directly connecting the piston or cylinder to either the flexible member or a pulley about which the flexible member is entrained. | |
251 | . Having specific engager for load: |
This subclass is indented under subclass 223. Apparatus wherein significance is attributed to a particular
device for engaging and retaining the load.
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252 | . Having passage for hoist cable through boom supporting member: |
This subclass is indented under subclass 223. Apparatus provided with an elongated strand of flaccid material
which is drawn in or payed out to raise or lower the load with respect
to the boom*, and wherein the support on which the boom
is swingably mounted is provided with a passageway through which
the strand passes.
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253 | . Having specific bearing structure: |
This subclass is indented under subclass 223. Apparatus wherein significance is attributed to that structure at or adjacent the immediate area of contact between the boom* and the support on which the boom is swingably mounted. | |
255 | HAVING VERTICALLY SWINGING BOOM: |
This subclass is indented under the class definition. Apparatus comprising an elongated member pivoted for movement
about a horizontal axis to a mast, crane body, trolley*,
or other supporting structure and projecting therefrom to support
or guide a flexible member from which the load is suspended.
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256 | . And compensating means to maintain horizontal movement of load: |
This subclass is indented under subclass 255. Apparatus wherein means are provided to keep the load at the same vertical distance above a surface as it is moved across the surface by the vertically swinging boom*. | |
257 | . And trolley: |
This subclass is indented under subclass 255. Apparatus wherein the vertically swinging boom* serves
as or bears a separate track or guide on which a load-supporting
trolley* is adapted to move.
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258 | . Protruding laterally from vehicle: |
This subclass is indented under subclass 255. Apparatus wherein the boom* is pivotally carried on a vehicle for swinging movement in a vertical plane which is substantially perpendicular to the direction in which the vehicle normally moves. | |
259 | . Having specific engager for load: |
This subclass is indented under subclass 255. Apparatus wherein significance is attributed to a particular
device for engaging and retaining the load.
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260 | . Having means to swing boom vertically: |
This subclass is indented under subclass 255. Apparatus including a motor, power transmission, or a force
multiplying linkage for swinging the boom* about a horizontal
axis.
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261 | .. Fluid actuated ram: |
This subclass is indented under subclass 260. Apparatus wherein the motor comprises a relatively reciprocating
piston and cylinder actuated by fluid pressure.
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262 | .. Flexible cable: |
This subclass is indented under subclass 260. Apparatus wherein the means for swinging the boom* vertically
includes a greatly elongated strand of flaccid material.
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263 | ... Human or animal powered: |
This subclass is indented under subclass 262. Apparatus wherein means are provided by which a person or
animal may apply a flexible force to the cable to swing the boom* vertically.
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264 | . Extensible by movement of boom or boom segment along longitudinal axis thereof: |
This subclass is indented under subclass 255. Apparatus including a vertically swinging boom* and
wherein either (a) means are provided which permits translational
movement of the boom along its longitudinal axis and relative to
the boom-supporting structure, or (b) the boom consists of a plurality
of interconnected segments slidably related to one another whereby
the effective length of the boom may be changed.
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71 | OVERHEAD: |
This subclass is indented under the class definition. Miscellaneous traversing hoists comprising means for raising
a load from overhead and traversing it, either in a straight or
curved line.
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72 | . Cable, ship coaling type: |
This subclass is indented under subclass 71. Linear hoists comprising a cable supported at two points,
the distance between which is subject to variations, a trolley traveling
on the cable, and means for changing the elevation of the load.
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73 | . Shiftable track: |
This subclass is indented under subclass 71. Linear hoists comprising miscellaneous shiftable tracks.
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74 | .. Longitudinally movable: |
This subclass is indented under subclass 73. Linear hoists mounted to move bodily in the direction of
their length.
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75 | .. Tilting: |
This subclass is indented under subclass 73. Miscellaneous linear hoists comprising a track, either rigid
or flexible, supported at two points, a trolley carriage or load
adapted to move along the track but not beyond either track support,
and means for elevating a portion of the track to cause the trolley
or load to move along it by gravity.
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76 | . Cable: |
This subclass is indented under subclass 71. Linear hoists comprising a cable or cables operated from
a fixed source of power for hoisting and transferring a load.
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77 | .. Load-handling: |
This subclass is indented under subclass 76. Linear cable hoists comprising some special means for receiving, engaging, gripping, discharging, or releasing a load. | |
78 | ... Draft-rope: |
This subclass is indented under subclass 77. Load-handling hoists comprising a tack, a carriage thereon,
a hoisting machine fixed in relation to the track, and one or more
cables extending from the hoisting machine to the carriage for hoisting
and traversing the load, the latter being partly or wholly suspended
during traversing movement from the hoisting means or the traversing
means, or both.
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79 | .... Dumping: |
This subclass is indented under subclass 78. Draft-rope hoists of the above type comprising a bucket or receptacle and means for dumping the load. | |
80 | ..... Double tackle: |
This subclass is indented under subclass 79. Dumping draft-rope hoists of the above type in which the
receptacle is supported by two tackles or cables capable of relative
movement.
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81 | ..... Grab: |
This subclass is indented under subclass 79. Dumping draft-rope hoists comprising some form of a grab,
such as a clamshell bucket or grapple.
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82 | ..... Sling: |
This subclass is indented under subclass 79. Dumping draft-rope hoists comprising a sling carrier.
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83 | ... Load suspension: |
This subclass is indented under subclass 77. Load-handling hoists comprising a track, a carriage thereon,
a hoisting machine fixed in respect to the track, and one or more
cables extending from the hoisting machine to the carriage for hoisting
and traversing the load, and means for supporting the load directly
from the carriage during traversing movement.
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84 | .... Grab: |
This subclass is indented under subclass 83. Linear load-suspension cable hoists comprising some form
of grab, such as a clamshell bucket or grapple.
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85 | .... Sling: |
This subclass is indented under subclass 83. Linear cable load-handling hoist of the load-suspension
type comprising a sling carrier.
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86 | .. Automatic stop: |
This subclass is indented under subclass 76. Linear cable hoists comprising means for automatically cutting
out the power when the load has reached a predetermined position.
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87 | .. Draft-rope, hoist-rope traverse: |
This subclass is indented under subclass 76. Hoists comprising a track, a carriage thereon, a hoisting machine fixed in relation to the track, a hoisting cable extending from the hoisting machine to the carriage for hoisting the load and traversing the carriage in one direction, the load being partly or wholly suspended during traversing movement from the hoisting means, and elements thereof not elsewhere classifiable. | |
88 | ... Divided hoist-rope: |
This subclass is indented under subclass 87. Linear cable hoists of the draft-rope, hoist-rope type,
comprising a track, a carriage thereon, and a hoist-rope consisting
of two sections, one extending toward each end of the track, which serves
to traverse the load in both directions.
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89 | ... Hook-lowering: |
This subclass is indented under subclass 87. Hoist-rope traverse devices of the above type in which there
is some means other than the weight of the parts themselves for
lowering the end of the hoisting rope or for lowering the fall-block
at the loading or unloading point.
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90 | ... Running track: |
This subclass is indented under subclass 87. Hoist-rope traverse systems which include a carriage and
a track therefore, the track serving also as means for traversing
the carriage in one direction.
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91 | ... Cable return: |
This subclass is indented under subclass 87. Draft-rope linear cable-hoist systems comprising a carriage, a hoisting cable which moves the carriage along its track in one direction, and a cable, not a hoisting cable, for moving it in the opposite direction. | |
92 | ... Gravity return: |
This subclass is indented under subclass 87. Systems of the type in which the hoisting rope moves the carriage in one direction, it being returned by gravity. | |
93 | .... Cable: |
This subclass is indented under subclass 92. Systems of the type comprising a carriage, a hoisting cable which moves the carriage in one direction, and a gravity-actuated cable for moving it in the opposite direction. | |
94 | .. Draft-rope, independent traverse: |
This subclass is indented under subclass 76. Linear cable-hoists comprising a track, a carriage thereon, a hoisting machine fixed in relation to the track, a hoisting cable extending from the hoisting machine to the carriage, and means separate from the hoisting cable for traversing the carriage in both directions, the load being partly or wholly suspended during traversing movement from the hoisting means. | |
95 | ... Anchored hoist-rope: |
This subclass is indented under subclass 94. Systems of the type comprising a hoist-rope, one end of which is anchored at some fixed point. | |
96 | ... Hook-lowering: |
This subclass is indented under subclass 94. Draft-rope systems of the type comprising some means other
than the weight of the parts themselves for lowering the end of
the hoisting cable or for lowering the fall-block at the loading
or unloading point.
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97 | .. Load suspension: |
This subclass is indented under subclass 76. Linear cable hoists comprising a track, a carriage thereon,
a hoisting machine fixed in relation to the track, and one or more
cables extending from the hoisting machine to the carriage for hoisting
and traversing the load, and means for supporting the load directly
from the carriage during traversing movement.
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98 | ... Hoist, carry and lower: |
This subclass is indented under subclass 97. Miscellaneous linear cable load-suspension hoists which
hoist the load, automatically secure it to a carriage, traverse
the carriage, and detach the load from the carriage at a second point,
thereby allowing it to be lowered by slacking the hoist-rope.
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99 | ... Running rope: |
This subclass is indented under subclass 97. Linear hoists comprising a hoisting carriage, a track, and
endless running flexible member, and a clutch mounted on the carriage
for intermittently connecting the running member with a member
carried by the carriage to effect the hoisting of the load or to
traverse the carriage.
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100 | ... Sheave catch: |
This subclass is indented under subclass 97. Load-suspension carriers comprising a catch on the carriage
for engaging directly with and wholly or partly supporting the sheave
of a block and tackle hoisting means.
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101 | .... Pivoted cable extension: |
This subclass is indented under subclass 100. Sheave-catch carriers comprising a catch consisting of an extension or continuation of the hoisting cable, which extension is pivoted to the carriage and upon which the sheave rests while the load is being traversed. | |
102 | ... Sheave-frame catch: |
This subclass is indented under subclass 97. Load-suspension carriers comprising a catch on the carriage
for engaging with the sheave frame of a block and tackle hoisting
means.
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103 | .... Sliding: |
This subclass is indented under subclass 102. Sheave-frame catch carriers, each comprising a catch which
has a sliding movement to engage with and wholly or partly support
the sheave frame.
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104 | .... Pivoted: |
This subclass is indented under subclass 102. Sheave-frame catch carriers comprising a catch which has
a swinging movement to engage with and wholly or partly support
the sheave frame.
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105 | ..... Double: |
This subclass is indented under subclass 104. Sheave-frame catch carriers comprising two movable pivoted
parts, acting in opposition to each other, for engaging with and
supporting the sheave frame or for retaining the sheave frame upon
some other support.
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106 | ... Rope catch: |
This subclass is indented under subclass 97. Load-suspension carriers comprising a traveling carriage,
a hoisting cable or chain, a stop, button, or the like, mounted
thereon or forming a part thereof, and means on the carriage for engaging
with and supporting the stop or button.
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107 | .... Sliding: |
This subclass is indented under subclass 106. Rope-catch carriers comprising a catch which has a sliding
movement to and from supporting position.
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108 | .... Pivoted: |
This subclass is indented under subclass 106. Rope-catch carriers comprising a single pivoted catch for
supporting the rope stop.
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109 | ..... Double: |
This subclass is indented under subclass 108. Rope-catch carriers comprising two pivoted catches which
move to supporting position from opposite sides of the hoisting
rope.
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110 | ... Rope grip: |
This subclass is indented under subclass 97. Traversing cable hoists comprising a traveling carriage,
a hoisting rope, and means on the carriage for gripping the rope
to support the load.
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111 | .... Variable elevation: |
This subclass is indented under subclass 110. Rope-grip carriers in which the hoisting rope may be gripped
to the carriage at different elevations of the load.
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112 | ..... Carriage release: |
This subclass is indented under subclass 111. Miscellaneous rope-grip variable elevation carriers comprising
means, usually manually operated, for releasing the carriage from
a stop on the track and simultaneously causing the setting of the
rope grip.
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113 | ..... Side draft: |
This subclass is indented under subclass 111. Variable elevation rope-grip hoists comprising means independent
of the hoisting cable for traversing the hoisting carriage. The
hoist-rope during the hoisting operation extends at or about right
angles to the track.
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114 | .... Coacting sheave: |
This subclass is indented under subclass 110. Rope-grip carriers including a traveling carriage, a sheave thereon, and means acting directly on the sheave to grip the hoisting rope between it and the sheave. | |
115 | ... Ratchet sheave: |
This subclass is indented under subclass 97. Cable hoists including a carriage, a hoisting rope passing
over a sheave or drum thereon, and a ratchet mechanism interposed
between the drum or sheave and the carriage, and wholly supporting
the load from the carriage during traversing movement.
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116 | ... Trips, stops, and knockers: |
This subclass is indented under subclass 97. Details of the knocker blocks, stops, and trips which are
used in load-suspension cable hoists for the purpose of tripping
the load-suspending means and allowing the load-hook or support to
be detached from the carriage. They also usually hold the carriage
in a fixed position on the track until the next load is hoisted
and attached to the carriage.
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117 | .. Rope carriers: |
This subclass is indented under subclass 76. Carriers for supporting carriage-moving or load-hoisting ropes of linear cable hoists to prevent excessive sag between the ends thereof. | |
118 | ... Cable stop-operated: |
This subclass is indented under subclass 117. Rope carriers which are placed in carrying position partly
through contact with a stop or button fixed on a cable.
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119 | ... Trolley-supported: |
This subclass is indented under subclass 117. Rope carriers normally carried by the hoisting carriage
or trolley and which are disengaged therefrom by means mounted on
the carriage itself, said means being operated by the movement of
the carriage along the track.
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120 | ... Carrier sheave-operated: |
This subclass is indented under subclass 117. Rope carriers which are placed in position by the coaction of a traveling rope and a sheave on the carrier. | |
121 | ... Permanently spaced: |
This subclass is indented under subclass 117. Rope carriers permanently located at fixed points along the line of the trackway. | |
122 | .. Carriage holders, track clamp: |
This subclass is indented under subclass 76. Devices comprising a clamp for gripping the track which
secure a hoisting carriage of a cable hoist in a fixed position
during hoisting or lowering operation and thereafter releases it for
traveling movement.
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123 | .. Pulley changers: |
This subclass is indented under subclass 76. Details of cable hoists comprising a track, a pulley, pulley supports at two points along the track, and means for changing or shifting the pulley from one support to the other. | |
328 | . Self-propelled trolley: |
This subclass is indented under subclass 71. Subject matter comprising a carriage provided with means
for moving itself along a track.
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329 | .. Automatic traversing stop: |
This subclass is indented under subclass 328. Subject matter comprising a means for automatically stopping
the trolley when a predetermined point on the track is reached.
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330 | .. Load-handling: |
This subclass is indented under subclass 328. Subject matter comprising some special means for receiving, engaging, gripping, discharging, or releasing a load. | |
331 | ... Electric: |
This subclass is indented under subclass 330. Subject matter comprising an electric power means for traversing and for hoisting the load. | |
332 | .... With grab: |
This subclass is indented under subclass 331. Subject matter including gripping means.
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333 | .... With guide bar: |
This subclass is indented under subclass 331. Subject matter which comprises some form of rigid or semirigid
linkage or similar device for connecting the hoisting trolley with
the load.
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334 | ..... With grab: |
This subclass is indented under subclass 333. Subject matter including gripping means. | |
335 | ..... With ladle: |
This subclass is indented under subclass 333. Subject matter including a scoop or similar container. | |
336 | . Nonmotor traverse: |
This subclass is indented under subclass 71. Subject matter in which the carriage is moved along the track by gravity or by an attendant. | |
337 | .. Nonmotor hoisting: |
This subclass is indented under subclass 336. Subject matter in which the load is raised or lowered by an attendant. | |
338 | .. With load-handler: |
This subclass is indented under subclass 336. Subject matter comprising some special means for receiving, engaging, gripping, discharging or releasing a load. | |
339 | ... Discharging: |
This subclass is indented under subclass 338. Subject matter comprising a carrier and means for discharging the carrier as by releasing or dumping the load. | |
340 | .... Automatic: |
This subclass is indented under subclass 339. Subject matter comprising a carrier and means for discharging a load when the carrier reaches a predetermined point. | |
341 | .. Fluid hoist: |
This subclass is indented under subclass 336. Subject matter comprising a fluid cylinder hoist.
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342 | .. Lever hoist: |
This subclass is indented under subclass 336. Subject matter comprising a single fulcrum for lifting the
load.
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343 | . Surface vehicle: |
This subclass is indented under subclass 71. Subject matter comprising an ambulant carriage having an
elevated support portion including a flexible hoist attached to
the elevated support portion and means to shift the load horizontally
with respect to the support portion.
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344 | .. Self-propelled: |
This subclass is indented under subclass 343. Subject matter comprising means for moving the vehicle from
place to place.
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345 | .. Drum: |
This subclass is indented under subclass 343. Subject matter comprising a hoisting winch. | |
346 | . Trolley having wheels which contact different sides or planes of a beam: |
This subclass is indented under subclass 71. Subject matter wherein the trolley includes plural wheels
arranged in nonparallel axes for contacting offset surfaces on the
beam.
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347 | BOOM OR MAST: |
This subclass is indented under the class definition. Subcombination comprising an elongated structural member
disclosed as being part of a traversing hoist and which serves to
either support the load, a boom*, or boom rigging.
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348 | . Extensible by sliding sections: |
This subclass is indented under subclass 347. Subject matter wherein the elongated structural member comprises
telescoping segments whereby the overall length of the member can be
changed.
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349 | .. By fluid pressure: |
This subclass is indented under subclass 348. Subject matter wherein the overall length of the member can be changed by application of a working fluid under pressure to the member or an associated motor. | |
350 | .. Having bearing means between extensible sections: |
This subclass is indented under subclass 348. Subject matter wherein significance is attributed to specific structure of the areas of contact between respective relatively sliding sections of the structural member. | |
270 | METHODS: |
This subclass is indented under the class definition. Process including a step of lifting a load and shifting it laterally. | |
271 | MISCELLANEOUS: |
This subclass is indented under the class definition. Subject matter which is not provided for under any of the preceding subclasses. | |
901 | DOLLEY-TYPE CRANES: |
This subclass is indented under the class definition. A collection of art comprising a wheeled base supporting a mast, a boom, and a hoist means whereby the apparatus is sized to be pushed by the operator. | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |