CLASS 291, TRACK SANDERS |
1 | MISCELLANEOUS: |
This subclass is indented under the class definition. Track-sanders not specifically provided for below. | |
2 | WHEEL-SLIP CONTROL: |
This subclass is indented under the class definition. The sand-dispensing device is automatically operated by the slipping or skidding of a traction-wheel or the relative slipping of two or more traction-wheels. | |
3 | FLUID DELIVERY: |
This subclass is indented under the class definition. Devices in which the sand is displaced and propelled or
after gravity release is propelled through the delivery-pipe by
either air, steam, water, or engine exhaust-gases.
SEE OR SEARCH CLASS:
| |||||||
4 | . Smoke and cinder: |
This subclass is indented under subclass 3. The cinders or smoke and cinders from a steam-locomotive smoke-stack are utilized instead of sand. | |
5 | . Reversing: |
This subclass is indented under subclass 3. Reversing means for fluid-pressure sand-delivery apparatus to effect track-sanding in front of or at the rear of the traction-wheels at will. | |
6 | . Movable trap valve: |
This subclass is indented under subclass 3. The sand-blast trap has a movable valve for determining which delivery-pipe is to be used and the other cut out. | |
7 | . Gravity conversion: |
This subclass is indented under subclass 3. Supplemental attachments for fluid sand-delivery apparatus, so that in case of absence of or failure of fluid-pressure or at will a gravity sand-feed may be thrown into operation. | |
8 | .. Bypass: |
This subclass is indented under subclass 7. The gravity-feed pipe has a cut-off valve and the sand-blast feed is through a by-pass around the gravity cut-off valve. | |
9 | .. Horizontal trap axis: |
This subclass is indented under subclass 7. The sand-trap is located either in the side walls or below the floor of the sand-dome and is swung in a vertical plane to clear the opening to the discharge-pipe for gravity feed. | |
10 | .. Vertical trap axis: |
This subclass is indented under subclass 7. The sand-trap, usually on the floor of the sand-dome, is moveably mounted and is swung horizontally to uncover the sand-outlet for gravity operation. | |
11.1 | . Including sand trap: |
This subclass is indented under subclass 3. Service comprising a retaining obstruction or horizontal passage to which the sand is delivered for engagement thereat by the air, steam, water, engine exhaust gas or other fluid. The fluid moves the sand over the obstruction or along the passage into the delivery pipe. | |
11.2 | .. Multiple fluid inlets for delivery pipe: |
This subclass is indented under subclass 11.1. Device having two openings or nozzles through which the
fluid flows to engage and move the sand to or through the delivery
pipe.
| |||||||
11.3 | .. Specified means to alter inlet fluid flow: |
This subclass is indented under subclass 11.1. Device wherein significance is attributed to means to change
the character of a flowing fluid prior to its engagement with the
sand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
12 | . Blast-nozzle cleaners: |
This subclass is indented under subclass 3. Movable mechanical cleaning elements, as wires or pins, for removing sand from the blast-nozzles in sand-traps. | |
13 | . Air ports and screens: |
This subclass is indented under subclass 3. Special forms of ports in blast-nozzles to impart a special form to the air-jet or to prevent sand from backing up into the blast-nozzle and screens or strainers for preventing the sand from backing up through the blast-nozzles. | |
14 | BRAKE-HANDLE CONTROL: |
This subclass is indented under the class definition. The movement of the brake or engineer"s valve handle at a determined point in its movement engages an abutment, which operates the control-valve of fluid sand-delivery apparatus or the sand-feeding device in a gravity sand apparatus or opens a port to control the sand-feeding device. | |
15 | BRAKE-SYSTEM CONTROL: |
This subclass is indented under the class definition. The movement of some valve other than the engineer"s brake-valve or of some movable member of a brake system operates the control-valve of a fluid-operated sanding device or a sand-feeding device in a gravity sanding apparatus. | |
16 | HAND-VALVE CONTROL: |
This subclass is indented under the class definition. Hand-operated valves for control of fluid-pressure sanders. | |
17 | ALARMS: |
This subclass is indented under the class definition. Sound-producing devices, air-blowers, or indicators to give warning as to the operation of the sand-delivery mechanism. | |
18 | JET IN HOPPER: |
This subclass is indented under the class definition. An air or steam jet discharges into the top of the hopper for effecting pressure on the mass of sand or discharges into the mass of sand for the purposes of heating, drying, or breaking up caked sand. This subclass does not include devices for blowing sand out of the hopper. | |
19 | HEATERS: |
This subclass is indented under the class definition. Heating devices for heating or drying the sand, the compressed
air, or the sand-delivery apparatus, as by hot air, gas-engine exhaust,
etc.
SEE OR SEARCH CLASS:
| |||
20 | . Electric: |
This subclass is indented under subclass 19. Electric-resistance heaters for sand, air, sand-hoppers,
and delivery-pipes.
SEE OR SEARCH CLASS:
| |||
21 | . Steam: |
This subclass is indented under subclass 19. Steam chambers and pipes for heating sand and sand-delivery
pipes by radiation.
SEE OR SEARCH CLASS:
| |||
22 | POWER-ACTUATED: |
This subclass is indented under the class definition. The sand-dispensing mechanism is driven by power, as by
connection with a car wheel or axle.
SEE OR SEARCH CLASS:
| |||
23 | . Electric: |
This subclass is indented under subclass 22. The sand is dispensed by the operation of an electric motor or solenoid. | |
24 | . Fluid: |
This subclass is indented under subclass 22. The sand-dispensing mechanism is operated by a rotary or reciprocating pneumatic motor. | |
25 | SAND FEEDERS: |
This subclass is indented under the class definition. Devices for releasing the sand so that it may fall by gravity
to the wheel or track. The term "sand-feeders" is
also used to include devices for stirring up sand in the hoppers
preliminary to feeding it out.
SEE OR SEARCH CLASS:
| |||
26 | . Reversing: |
This subclass is indented under subclass 25. Sand-feeding apparatus operable at will for delivering sand either in front of or behind the vehicle traction-wheels. | |
27 | . Chain: |
This subclass is indented under subclass 25. The sand is fed to the delivery-pipe by a moving-chain feed. | |
28 | . Oscillatory: |
This subclass is indented under subclass 25. The sand releasing and stirring members have an angular to-and-fro movement about axes at right angles to the plane of rotation. The releasing members are hinged doors, cylindrical segments, recessed or smooth, or of the perforated-plug-valve type. | |
29 | .. Cup: |
This subclass is indented under subclass 28. The pivoted cups cap the hopper discharge- openings. | |
30 | .. Hopper: |
This subclass is indented under subclass 28. The entire sand-hopper is tilted to cause a discharge of the sand. | |
31 | .. Spout cutoff: |
This subclass is indented under subclass 28. The pipes for delivering sand to the track are hinged adjacent the hoppers, are flexible, or are bodily movable, so that when the pipes are moved or bent the sand-discharge is cut off. | |
32 | . Rotary: |
This subclass is indented under subclass 25. Rotary plates and cylindrical members adapted to rotate either continuously in the same direction or through a complete revolution. This subclass also includes centrifugal sowers. | |
33 | . Screw: |
This subclass is indented under subclass 25. Sand mixers or discharge devices of helical or screw form. | |
34 | . Longitudinal slide: |
This subclass is indented under subclass 25. Sand-discharging and mixing plates or members having rectilinear sliding movement in the sides or bottoms of the sand-hoppers. | |
35 | . Pivoted slide: |
This subclass is indented under subclass 25. Plates with pivot-axes at right angles to the plates, so that the plane of the plate and its plane of movement are the same. | |
36 | . Vertical plunger: |
This subclass is indented under subclass 25. The plungers pass upwardly into the interior of the sand-hoppers and so are usually combined mixers and discharge-valves. | |
37 | .. Helical guide: |
This subclass is indented under subclass 36. Same as 36 with addition of means for giving the plunger a turning movement as it moves up and down in the hopper. | |
38 | SAND HOPPERS: |
This subclass is indented under the class definition. Details of sand-hoppers not otherwise classified below. | |
39 | . Wheel guard: |
This subclass is indented under subclass 38. Sand-reservoirs combined with the wheel-guards of automobiles. | |
40 | . Dome: |
This subclass is indented under subclass 38. Dome-shaped sand -reservoirs located on top of steam-locomotive boilers. | |
41 | SAND-DELIVERY PIPE: |
This subclass is indented under the class definition. Details of sand-delivery spouts and pipes not otherwise classified below. | |
42 | . Cleaners: |
This subclass is indented under subclass 41. Movable devices inside the sand-pipes for cleaning them.
SEE OR SEARCH CLASS:
| |||
43 | .. Fluid: |
This subclass is indented under subclass 42. A current of air or steam is blown through the delivery-pipe. In case of a delivery-pipe in fluid sanding system the cleaning-current is additional to the sand, air, or steam blast for moving the sand. | |
44 | . Flexible: |
This subclass is indented under subclass 41. Flexible and articulated delivery-pipes designed to accommodate
relative movement between traction-wheel frames and other parts of
the vehicle due to relative vertical movements of such parts or
to relative angular movement when rounding curves.
SEE OR SEARCH CLASS:
| |||
45 | . Telescopic: |
This subclass is indented under subclass 41. A plurality of sections of sand-delivery pipes having sliding
connection with each other.
SEE OR SEARCH CLASS:
| |||
46 | . Nozzles: |
This subclass is indented under subclass 41. Details or nozzles, such as sleeves, inserts, and tip forms.
SEE OR SEARCH CLASS:
| |||
47 | .. Pivoted: |
This subclass is indented under subclass 46. This includes nozzle-tips pivoted to the pipe adjacent the
wheel or track.
SEE OR SEARCH CLASS:
| |||
48 | SAND SCREENS: |
This subclass is indented under the class definition. Devices for preventing the passage of pebbles or coarse foreign matter to the sand-delivery devices. | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |