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CLASS 56,	HARVESTERS
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SECTION I - CLASS DEFINITION

This class includes means for severing crops which grow above the surface of the ground, without disturbing the soil, and means for gathering the same from the field after they are severed. Subject matter relating to cutting crop material lying on the ground without disturbing the soil is also included.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Cutting implements carried in the hand or by the body and capable of general application are classified in Class 30, Cutlery.

The raking devices in this class are limited to the type that are designed to gather hay, straw, grass, leaves, or the like. Intermittent loaders, which may travel over the ground and which have forks which gather a load and then swing upwardly to lift the same and dump it, are classified in Class 414, Material or Article Handling.

Beet crop harvesters, such as beet harvesters, potato-diggers, and the like, and means for uprooting and recovering stalks or weeds are classified in Class 171, Unearthing Plants or Buried Objects.

Stone gatherers which gather stones by impelling the above ground portions of partially buried stones are found in Class 171, Unearthing Plants or Buried Objects, subclasses 63+. See the Notes to this subclass for other types of gatherers.

Machines for scooping up manure are classified in Class 37, Excavating, subclasses 118+.

SUBCLASSES

1	MISCELLANEOUS:
	This subclass is indented under the class definition.  Inventions falling and not classifiable elsewhere.

2	CONVERTIBLE:
	This subclass is indented under the class definition.  Machines which by removing, interchanging, or shifting certain parts may be converted from one type of harvester into another. SEE OR SEARCH THIS CLASS, SUBCLASS: 400.04+, for convertible hand rakes.

3	Cutter and detachable conveyer:
	This subclass is indented under subclass 2.  Having means to cut grain and convey it away from the point where it falls, but capable of being converted into a mower by detachment of the conveying means.

4	Vertical axis:
	The conveying means comprising a rake oscillating or revolving about a vertical axis.

5	Cutter and detachable catcher:
	This subclass is indented under subclass 2.  Having means to cut grain and catch it as it falls, but capable of being converted into a mower by the detachment of the catcher.

6	GANG:
	This subclass is indented under the class definition.  Devices comprising two or more similar cutting units each comprising a cutter and frame or mounting means, which units are connected together and operated as a single machine. SEE OR SEARCH THIS CLASS, SUBCLASS: 13.6+, for a harvester having plural, motor- driven cutter-units. 234+, for hedge or plant row trimmers having a plurality of cutters. 238, for cutting devices which make successive cuts at different heights. 251, for rotating cutting reels having an auxiliary cutter.

7	Rotating cutting reel:
	This subclass is indented under subclass 6.  Each of the constituent machines having cutting-knives carried on the periphery of a rotating reel, generally adapted for mowing lawns.

8	MARINE:
	This subclass is indented under the class definition.  Devices used for cutting or removing marine-plant growth.

9	With conveyer:
	This subclass is indented under subclass 8.  Having a conveyor to convey the growth to the desired point.

10.1	MOTORIZED HARVESTER:
	This subclass is indented under the class definition.  Machine wherein a harvester or an operating assemblage thereof derives all or part of its motive power from a motor or engine, or from a vehicle that is driven by a motor or engine. (1) Note. For this and indented subclasses, the terms "motor" and "vehicle" may be considered in their broadest aspects. Among terms acceptable for, or equivalent to, "motor" are: "power take-off", "engine", "hydraulic ram", "drive means" (i.e., where the specification discloses a motor), these being only examples of such terms. Among terms acceptable for, or equivalent to, "vehicle" are such exemplary term as: "self-propelled machine", "engine- driven wheeled frame", "tractor", "mobile frame" (i.e., where the specification discloses that the mobility of the frame is derived from a motor). (2) Note. The term "operating assemblage" refers to that portion of a harvester that causes a change in the condition or the location of the material operated upon. Such material may be vegetation (i.e., that which is growing from the ground) or crop (i.e., that which has been separated from the ground by a harvester unit). The change in condition may be effected by such exemplary assemblages as a cutting unit, a (corn) snapping unit, a (cotton) picking unit, a (wheat) threshing unit, and the change in location may be effected by such exemplary assemblages as a gathering unit (i.e., that which directs vegetation to a cutter or picker) or a conveyor unit (i.e., that which moves crop from one location to another). SEE OR SEARCH THIS CLASS, SUBCLASS: 328, for a motor-operated fruit and nut gatherer. SEE OR SEARCH CLASS: 30,  Cutlery,   subclasses 180 , 206, 210, 216, and 264 for motor operated cutlery. 172,  Earth Working,   subclasses 35+ , for an earth working tool driven by a motor. 173,  Tool Driving or Impacting,   appropriate subclass for subject matter directed to driving or impacting a tool, and particularly subclasses 184+ for tool driving or impacting means mounted on a vehicle. 180,  Motor Vehicles,   subclasses 14.1+ for a train of two or more vehicles, at least one of them being a motor vehicle; and subclasses 53.1+ for a motor vehicle provided with means for facilitating the use of its motor for supplying power to drive another machine (e.g., power take-off).

10.2	WITH CONDITION-RESPONSIVE OPERATION:
	This subclass is indented under subclass 10.1.  Machine wherein the harvester includes means for: (a) sensing a characteristic of the harvester or a characteristic that is external to the harvester but related to its use, and (b) performing an action by at least one of the operating assemblages thereof, which action is a direct result of such sensing. SEE OR SEARCH CLASS: 901,  Robots,   subcollection 9 for a sensor on the end of a robot arm for controlling arm movement and subcollection 32 for sensor operated gripping jaws on a robot arm.

10.3	Release or slip of drive in response to overload:
	This subclass is indented under subclass 10.2.  Machine wherein the action results from a load requirement that is greater than the motor can safely deliver, and the action is effected by permitting the motor to operate without transmitting its power to the load. (1) Note. The action may be effected by use of a frangible connection in the drive train between the motor and the load or by a disconnectable or slippable clutch in such drive train. SEE OR SEARCH THIS CLASS, SUBCLASS: 10.8+, for a harvester wherein a clutch or other equivalent means in the drive train is controlled at the will of an operator. 12.7, for a harvester wherein the cutting blade thereof is resiliently or pivotally mounted on its drive shaft.

10.4	Retraction of cutter-unit in response to obstruction:
	This subclass is indented under subclass 10.2.  Machine wherein the action results from the sensing of an obstacle in the path of movement of a cutting assemblage on the harvester, and the action is effected by a means for withdrawing said assemblage from its normal cutting position in said path. SEE OR SEARCH THIS CLASS, SUBCLASS: 15.3, for a harvester having a drive train that permits a harvester to be repositioned in a breakaway action. 15.7, for a harvester having a joint between a tractor and a cutting assemblage that permits the assemblage to breakaway.

10.5	With randomly-operative control of motor (e.g., for starting or stopping motor):
	This subclass is indented under subclass 10.1.  Machine wherein the operation of the motor or engine is regulated by the occurrence of an action that cannot be predicted. (1) Note. This subclass provides for a lawn mower having an electric motor and a switch whereby current to the motor is turned on or off at the will of the operator, or having a gasoline motor and an auxiliary starter or a switch to cut off the ignition current of the engine at the will of the operator.

10.6	With plural sources of power:
	This subclass is indented under subclass 10.1.  Machine provided with two or more motors, engines or other sources of energy. (1) Note. For this and indented subclasses, the power is that which is applied to any mechanism of the harvester. Therefore, although in this subclass (10.6) plural cutting assemblages are disclosed, each assemblage driven by its own motor, the indented subclass (10.7) provides for a harvester wherein an operating assemblage is powered by one motor, and operating assemblage is repositioned relative to the harvester by a second motor, and the harvester is moved over the ground by a third motor (or any combination of such motor-moved devices), even though all such motors are supplied with energy from a common source of energy.

10.7	For disparate functions:
	This subclass is indented under subclass 10.6.  Machine wherein one of the motors drives one mechanism of the harvester and another of the motors drives a mechanism having a purpose different from that of the first-mentioned portion. (1) Note. For examples of types of mechanism found in this subclass, see (1) Note to subclass 10.6.

10.8	With selective control of drive means:
	This subclass is indented under subclass 10.1.  Machine provided with means for connecting or disconnecting or regulating the action of one or more mechanisms of the harvester or the vehicle relative to its motor, at the will of an operator. (1) Note. The term "mechanism" includes (a) those parts of an operating assemblage that move relative to one another or to their supporting structure for the purpose of performing a harvesting function, (b) those parts of a harvester-supporting structure that move relative to the harvester or its vehicle for the purpose of adjusting the structure relative to the harvester or its vehicle, and (c) those parts of a vehicle that move relative to the vehicle or the ground for the purpose of transiting the vehicle over the ground. (2) Note. In this and indented subclasses a foot-actuated pedal is considered to be as "manual" as a hand-actuated lever.

10.9	By valve for controlling fluid-pressure motor:
	This subclass is indented under subclass 10.8.  Machine wherein the motor is actuated by force applied via a liquid or gaseous medium, and wherein the motor action is regulated by a device that directs the flow of said medium. SEE OR SEARCH THIS CLASS, SUBCLASS: 11.9, for a harvester provided with a fluid-pressure motor and a conventional or not significant valve therefor.

11.1	By means for varying speed-ratio of drive:
	This subclass is indented under subclass 10.8.  Machine wherein the means causes a change in the proportion of motor movement relative to mechanism movement.

11.2	By means for reversing drive:
	This subclass is indented under subclass 10.8.  Machine wherein the means causes a change in the direction of movement of the mechanism from one direction to an opposite direction.

11.3	By brake and disengageable drive (e.g., clutch):
	This subclass is indented under subclass 10.8.  Machine wherein the means includes a device for stopping motion of the motor or the mechanism and a device for connecting the motor to, and disconnecting it from, the mechanism. SEE OR SEARCH CLASS: 192,  Clutches and Power-Stop Control,   subclasses 12+ for a clutch and brake subcombination, per se.

11.4	By controlling plural drive trains:
	This subclass is indented under subclass 10.8.  Machine wherein the means includes two or more mechanisms and a corresponding number of series of connected parts through which motion is transmitted from a motor to said mechanisms, each of which series is provided with a device for connecting the motor to and disconnecting it from the mechanism. (1) Note. This and the indented subclasses provide for a harvester wherein, for example, it is desired to disconnect the cutter unit thereof while continuing drive to the transit wheels thereof from the motor.

11.5	Including clutch-assemblages:
	This subclass is indented under subclass 11.4.  Machine wherein each series includes a clutch-assemblage. (1) Note. A clutch-assemblage comprises all the parts that cooperate together to (a) connect a rotating "input" shaft (or a pulley, drum, flywheel, gear or other equivalent torque-transmitting member) to a rotatable "output" shaft (or hub, pulley, gear or other equivalent torque-transmitting member) that is coaxial with and driven by the input shaft, or (b) disconnect said shafts from rotational relationship, either action being performed at the will of the user of the clutch-assemblage.

11.6	By means for regulating tautness of belt drive:
	This subclass is indented under subclass 10.8.  Machine wherein the means includes an endless band trained around pulleys on the motor and the mechanism, and wherein the connection is made by tightening the band into close engagement with the pulleys.

11.7	By clutch-assemblage:
	This subclass is indented under subclass 10.8.  Machine wherein the means includes a clutch-assemblage. (1) Note. The term "clutch-assemblage" is defined in (1) Note to the definition of subclass 11.5 above.

11.8	Connecting motor to cutter or transit wheels:
	This subclass is indented under subclass 11.7.  Machine wherein the clutch-assemblage connects and disconnects either the cutting unit or the driven ground-engaging wheels of the vehicle relative to the motor or engine.

11.9	Having fluid-pressure or stored-energy motor:
	This subclass is indented under subclass 10.1.  Machine wherein the motor is actuated by force applied via a liquid or gaseous medium, or wherein the motor is actuated by a source of potential power. (1) Note. The most common source of stored-energy in a harvester of this subclass is an electric battery carried on the harvester to operate the electric motor thereof. However, a spring-operated or a weight-operated motor would also be proper for this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 10.9, for a harvester provided with a fluid-pressure motor and a valve to control the operation thereof.

12.1	With means for reconditioning cutter or picker:
	This subclass is indented under subclass 10.1.  Machine provided with means for restoring a cutting blade or a vegetation-gathering member to its original or operative state of being. (1) Note. This subclass provided for a harvester having means for sharpening a cutting blade or cleaning a cutting blade or picker member (e.g., a cotton-gathering spindle), or moistening such a picker member to remove the wisps of cotton not picked up by a cotton "doffer". The cleaning means is in addition to that means which strips the bulk of the cotton, or other crop, from the gathering members. SEE OR SEARCH THIS CLASS, SUBCLASS: 250, for a cutting-reel and a sharpening means.

12.2	With means for using heat or exhaust from engine:
	This subclass is indented under subclass 10.1.  Machine wherein the power source emits thermal radiation or gaseous by-products therefrom, and provided with means for utilizing such emissions during the harvesting operation. (1) Note. This subclass provides for a lawn mower wherein the exhaust gas is used to set up the grass to be cut evenly, or to help discharge the cut crop, or for a harvester wherein heat from the engine helps dry the crop.

12.3	With means for lubricating drive train:
	This subclass is indented under subclass 10.1.  Machine provided with a series of connected parts through which motion is transmitted from the motor to the mechanism, and further provided with means for applying a friction-reducing fluid to said series. (1) Note. The term "mechanism" is defined in (1) Note to the definition of subclass 10.8.

12.4	With drive train for imparting compound movement to finger-like elements:
	This subclass is indented under subclass 10.1.  Machine provided with prong members that engage and handle vegetation or crop and further provided with means for causing said members to move with more than one degree of movement. (1) Note. This subclass provides for a harvester wherein there is a cylinder having projecting fingers, and the fingers move generally radially in and out of the cylinder as the cylinder rotates, or for a harvester wherein prongs of a hay rake revolve with their supporting carriage and an axis parallel to the ground but maintain their orientation so their free ends point constantly toward the ground.

12.5	Rotating and orbiting elements:
	This subclass is indented under subclass 12.4.  Machine, each of said prong members having an axis that extends along its length, and the members all lying in substantially a common plane, wherein each member rotates on its own axis and all the members move in an endless path lying in said plane. (1) Note. This subclass provides for a harvester for picking cotton wherein the picking fingers rotate to wind the cotton boll onto the fingers, and are carried on an endless chain that brings the fingers to a position whereat the cotton is stripped from the fingers.

12.6	With separable or vibration-damping drive train:
	This subclass is indented under subclass 10.1.  Machine provided with a series of connected parts through which motion is transmitted from the motor to the mechanism, wherein said series is mounted so as to be detachable, one part from another, or is mounted so as to prevent high-frequency impulses from being transmitted from one part of the machine to another part thereof. (1) Note. It is inherent in any series of connected parts that certain of the parts may be disconnected therefrom and reconnected thereto. Therefore, there should be clearly disclosed the features implicit in the title and definition of the subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 10.3, for a harvester having a connection between a motor and a mechanism driven thereby, which connection is capable of slipping under a condition of overload and is, therefore, inherently capable of absorbing vibrations that would otherwise be transmitted from one part of a machine to another part thereof. 10.8+, for a harvester having a clutch or other separable connection between a motor and a mechanism driven thereby, which connection is intended for manual control of the drive train rather than for detachment thereof.

12.7	Including cutter yieldably mounted on its drive means:
	This subclass is indented under subclass 10.1.  Machine provided with a cutting blade that is supported on a driving shaft by a resilient or pivotal connection. (1) Note. This subclass provides for a harvester wherein the cutting blade thereof is mounted so that it will move or "give" relative to its driving shaft, thereby reducing the possibility of the blade breaking, or producing a flailing action on the vegetation or crop. SEE OR SEARCH THIS CLASS, SUBCLASS: 10.3, for a harvester wherein a drive train includes a frangible or slippable connection therein.

12.8	Including driven air-blower unit:
	This subclass is indented under subclass 10.1.  Machine provided with an operating assemblage comprising means for moving air under pressure or suction, whereby vegetation or crop is moved relative to the harvester under the influence of the moving air. (1) Note. In this subclass the air-blower cools the motor or engine or provides a force for lifting the harvester out of contact with the ground.

12.9	For drawing vegetation to harvester:
	This subclass is indented under subclass 12.8.  Machine wherein the air-moving assemblage sucks or directs vegetation (i.e., that which is growing from the ground) to the harvester. SEE OR SEARCH THIS CLASS, SUBCLASS: 30+, for a pneumatic cotton-picker. SEE OR SEARCH CLASS: 406,  Conveyors: Fluid Current,   for a pneumatic conveyor, per se.

13.1	To suction head:
	This subclass is indented under subclass 12.9.  Machine provided with an air duct between the vegetation and the air-moving assemblage, wherein that end of the air duct opposite the air-moving assemblage is applied to vegetation so as to draw vegetation to the harvester.

13.2	With beater at suction head:
	This subclass is indented under subclass 13.1.  Machine further provided with means mounted on a driving shaft located in the air duct near the vegetation end thereof, which means imparts multitudinous impulses to the vegetation adjacent the air duct whereby to agitate the vegetation and separate one portion from another. (1) Note. The impulse means usually comprises a rotating shaft having bristles or loosely-mounted flail elements thereon, but may include any other means that beats the vegetation.

13.3	For discharging crop from harvester:
	This subclass is indented under subclass 12.8.  Machine wherein the air-moving assemblage directs crop (i.e., that which has been separated from the ground by a harvester unit) within or away from the harvester. SEE OR SEARCH CLASS: 406,  Conveyors: Fluid Current,   for a pneumatic conveyor, per se.

13.4	By blower on cutter-driving shaft:
	This subclass is indented under subclass 13.3.  Machine provided with a cutting knife actuated by a motor-driven shaft, and wherein a fan of the air-blower assemblage is supported on the same shaft that actuates the knife.

13.5	Including plural operating units and drive:
	This subclass is indented under subclass 10.1.  Machine provided with at least two operating assemblages driven by a motor or engine. (1) Note. A distinction is made between the driving of harvester components for the purpose of treating or handling vegetation or crop and the driving of harvester components for the purpose of adjusting them relative to one another. For example, a harvester wherein cutting blades are driven and a crop conveyor is driven, or a harvester wherein snapping rolls are driven and husking rolls are driven would be found in this or indented subclasses because in the named instances both units are operating assemblages. However, a harvester wherein cutting blades are driven and a structure that supports those cutting blades or a structure that supports another operating assemblage is repositioned by motor means, or a harvester wherein snapping rolls are driven and the transit wheels that move the harvester over the ground are driven by motor means will be found, for example, in subclasses 14.7+, particularly 15.1+, because the supporting structure and the transit wheels are not considered to be operating assemblages. SEE OR SEARCH THIS CLASS, SUBCLASS: 11.4+, for a harvester wherein drive trains to plural operating assemblages are controlled by an operator.

13.6	Separately-acting cutter units:
	This subclass is indented under subclass 13.5.  Machine wherein the operating assemblages are cutting assemblages that act to cut vegetation or crop either in different places or ways or at different times from one another. (1) Note. This subclass provides for a harvester wherein one cutting assemblage cuts one swath of vegetation and a second cutting assemblage cuts a second, different swath of vegetation. SEE OR SEARCH THIS CLASS, SUBCLASS: 6+, for a gang harvester. 60+, for a harvester having a cutter and a stalk chopper. 234+, and 251, for a harvester having plural cutter-units.

13.7	For disparate cutting operations:
	This subclass is indented under subclass 13.6.  Machine wherein the cutting assemblages act to cut vegetation or crop in different ways or at different times from one another. (1) Note. This subclass provides for a harvester wherein one cutting assemblage cuts tall grass with a reciprocating sickle cutter and another cutting assemblage cuts short grass with a rotating disk type cutter, or a harvester wherein one cutting assemblage is disconnected from the driving train and the other cutting assemblage connected into the driving train for alternative operation of such cutting assemblages. SEE OR SEARCH CLASS: 460,  Crop Threshing or Separating,   subclasses 123+ , for stripping and topping mechanism, per se.

13.8	In series arrangement:
	This subclass is indented under subclass 13.7.  Machine wherein the cutting assemblages are spaced apart and positioned relative to one another such that the product of (i.e., the material cut by) one assemblage is work for (i.e, the material to be cut by) a succeeding assemblage.

13.9	With conveyer between units:
	This subclass is indented under subclass 13.8.  Machine provided with means located in the space separating two cutting assemblages for moving the product of one assemblage to the succeeding assemblage to be work therefor.

14.1	Separately-acting opposed-roller-couple units:
	This subclass is indented under subclass 13.5.  Machine wherein each of at least two of the operating assemblages comprises two generally cylindrical members rotating in opposite angular directions on generally parallel axes and spaced apart a distance sufficient to admit vegetation or crop between the cylindrical peripheries of said members. (1) Note. The roller-couple described above is called a "snapping unit" if it pulls vegetation (usually corn) from the stalk and called a "husking unit" if it removes the outer husk from an ear of corn. (2) Note. In some harvesters one axis is common to one roller of a snapping unit and one roller of a husking unit, and another parallel axis is common to the other roller of said snapping unit and the other roller of said husking unit. However, each unit functions without regard to the other, therefore the structure is proper for this subclass. SEE OR SEARCH CLASS: 460,  Crop Threshing or Separating,   subclasses 25+ for husking mechanism, per se.

14.2	With opposed-gatherer-couple unit:
	This subclass is indented under subclass 14.1.  Machine further provided with an operating assemblage comprising two devices spaced from one another and having elements thereon for engaging vegetation lying between the devices, the elements of the respective devices moving orbitally in opposite angular directions such that when the elements of the respective devices are closest together they are moving toward one of the roller-couple operating assemblages, thereby to direct the vegetation engaged between the devices to the action of said roller-couple.

14.3	Gatherer unit and vegetation-cutter unit:
	This subclass is indented under subclass 13.5.  Machine wherein one of the operating assemblages comprises first means for engaging and actively directing vegetation to the action of the harvester and another of the operating assemblages comprises second means for cutting the vegetation directed thereto. SEE OR SEARCH THIS CLASS, SUBCLASS: 17.3, for a lawn mower wherein passive means directs vegetation to a cutting assemblage. 94, for a harvester including a gatherer and a cutter.

14.4	Horizontal-axis-reel gatherer:
	This subclass is indented under subclass 14.3.  Machine wherein the first means comprises a device rotatable about an axis that is generally parallel to the ground and having vegetation-engaging elements rotatable therewith about said axis, which device is rotated in an angular direction such that when the elements are closest to the ground they are moving toward the harvester.

14.5	Cutter unit and conveyer unit:
	This subclass is indented under subclass 13.5.  Machine wherein one of the operating units comprises first means for cutting vegetation or crop and another of the operating units comprises second means for moving crop to or from the first means. SEE OR SEARCH THIS CLASS, SUBCLASS: 153+, for a harvester including a cutter and a conveyor.

14.6	With thresher or crop-separator unit:
	This subclass is indented under subclass 14.5.  Machine provided with a third means for dividing one portion of the crop from another portion of the crop. (1) Note. In this subclass the term "thresher" is considered as equivalent to a crop-separating unit, and a harvester including a cutter, a conveyor and a thresher is found herein. SEE OR SEARCH CLASS: 460,  Crop Threshing or Separating,   appropriate subclasses, for a threshing mechanism, per se.

14.7	Including motorized vehicle causing transit of harvester:
	This subclass is indented under subclass 10.1.  Machine provided with a carriage or conveyance that derives its motive power for travelling over the ground from a motor or engine, to which carriage is connected an operating assemblage of a harvester to effect travel of said assemblage over the ground. (1) Note. This subclass provides for a self-propelled lawn mower that is guided by a walking attendant or a self-propelled lawn mower that is steered by a riding attendant. SEE OR SEARCH THIS CLASS, SUBCLASS: 16.7+, for a lawn mower that is driven for cutting by a motor, but is propelled and guided by a walking attendant.

14.8	With drive train to harvester powered by ground-engaging wheels:
	This subclass is indented under subclass 14.7.  Machine wherein the carriage has at least one wheel that is rotated solely by reason of its engagement with the ground as the carriage travels over the ground, and provided with a series of connected parts through which motion is transmitted to the operating assemblage solely from said wheel.

14.9	With hitch permitting movement of harvester relative to vehicle:
	This subclass is indented under subclass 14.7.  Machine provided with a structure for supporting the operating assemblage and means for attaching said structure to the carriage, which means allows said structure to be relocated with respect to said carriage.

15.1	With drive from motor for re-positioning harvester:
	This subclass is indented under subclass 14.9.  Machine further provided with a series of connected parts for transmitting motion from the motor or engine to said structure for the purpose of re-locating said structure with respect to the carriage.

15.2	Cutter assemblage re-positioned:
	This subclass is indented under subclass 15.1.  Machine wherein the structure that is relocated is that which supports the cutting assemblage.

15.3	With flexible drive train to repositionable harvester:
	This subclass is indented under subclass 14.9.  Machine further provided with a series of connected parts for transmitting motion from the motor or engine to an operating assemblage on said structure, wherein the series of parts may be bent or reoriented relative to one another to maintain the motion-transmitting connection between the motor and the assemblage despite the relocation of the structure.

15.4	By means for steering harvester:
	This subclass is indented under subclass 14.9.  Machine wherein the structure is provided with one or more ground-engaging wheels that may be turned about a substantially vertical axis. (1) Note. This subclass provides for a harvester wherein its propelling vehicle (e.g., tractor) has a set of steering wheels for the tractor and the operating assemblage is supported in a structure that has its own set of steering wheels separate from those of the vehicle.

15.5	By means for adjusting harvester laterally:
	This subclass is indented under subclass 14.9.  Machine wherein the structure is relocated relative to the carriage in a direction that is transverse to the direction of movement of the carriage and parallel to the ground.

15.6	By hitch for separating harvester from vehicle:
	This subclass is indented under subclass 14.9.  Machine wherein the means may be manipulated by an operator to cause the structure to be detached from the carriage and reattached easily. (1) Note. It is inherent in any structure that is attached to a machine that the structure may be detached therefrom and reattached thereto. Therefore, there should be clearly disclosed the features implicit in the title and definition of the subclass.

15.7	By resilient or universal-action hitch:
	This subclass is indented under subclass 14.9.  Machine wherein the means includes a yieldable portion or includes an attachment permitting movement of the structure in plural directions simultaneously. (1) Note. This subclass provides for a harvester wherein vibrations that may be generated in one mechanism of a harvester will be damped so as not to be transmitted to another mechanism of the harvester, or for a harvester wherein an operating assemblage may be pivoted in a vertical plane extending laterally and may also be pivoted in a horizontal plane (e.g., in a "breakaway" cutter). SEE OR SEARCH THIS CLASS, SUBCLASS: 10.4, for a harvester having "breakaway" mechanism, wherein retraction of a cutter assemblage is a direct result of the cutter assemblage meeting an obstruction to its movement, and such retraction is permitted by a universal-action hitch.

15.8	For "floating" harvester:
	This subclass is indented under subclass 15.7.  Machine wherein the structure is supported by the ground over which it travels, and follows the contours of the ground regardless of irregularities therein.

15.9	Hitch for pivoting harvester about horizontal axis:
	This subclass is indented under subclass 14.9.  Machine wherein the means includes an axle or shaft that is generally parallel to the ground and serves as a hinge on which the structure swivels.

16.1	Tined crop-pickup rake on transverse pivot:
	This subclass is indented under subclass 15.9.  Machine wherein the operating assemblage includes elongated fingers extending generally in the direction of travel of the harvester, and wherein the attaching means includes an axle or shaft extending generally across said direction of travels, whereby the structure supporting said fingers may swivel in a vertical plane about a lateral axis. (1) Note. In use, the harvester of this subclass is driven over ground on which crop (i.e., vegetation that has been cut) is lying while the tines are disposed close to the ground. When a mass of crop has accumulated on the tines, the structure is lifted and the crop transported to another location in the field.

16.2	Longitudinally-extending axis:
	This subclass is indented under subclass 15.9.  Machine wherein the axle or shaft lies along the direction of travel of the harvester. (1) Note. This subclass provides for a harvester wherein a cutting assemblage extends laterally out from the side of the harvester and folds up about the longitudinal pivot to reduce the lateral dimension of the harvester and facilitate travel thereof along a roadway.

16.3	With latchable lever means for pivoting harvester:
	This subclass is indented under subclass 15.9.  Machine wherein the means includes a bar operating about a fulcrum and connected to the structure for swiveling said structure about its hinge shaft, which bar has a detent or lock for maintaining the bar and the structure in a desired position.

16.4	Having driven means for handling or treating crop:
	This subclass is indented under subclass 10.1.  Machine wherein the operating assemblage changes the location or the condition of crop (i.e., that which has been separated from the ground by a harvester assemblage). SEE OR SEARCH CLASS: 100,  Presses,