US1549758A - Locomotive air turret - Google Patents

Description

c. c. FARMER Locouo'rly AIR TURRE'T Filed Nov. l.V 1923 Aug. 18, 1925,

INVENTOR C LYDE C. FARMER ww@ ATTORNEY Patented iti,

LYDE C. FARMER, Ol? PITTSBUEGB, P

011 PENNSYLVANIA.

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Application filed November l, 1923. Serial No. 672,094.

To allie/0m t may concern.'

lie it known that l, @tron C. F Amann, a citizen of the United States, residing at ll'ittsbiu'gh, in the county cf Allegheny and State of Pennsylvania., have invented new and useful improvements in Locomotive Air rFurrets, of which the following is a. specilication.

This invention relates 'to fluid pressure controlled apparatus, and more particularly to manually operated mechanism for controlling the fluid pressure for operating various auxiliary devices on a steam locomo,` tive.

@n modern "steam locomotives, many accessories and parts are caused to function by the use of fluid under pressure, 'the supply of fluid pressure being controlled by corresponding manually operable valves located in the locomotive cab or elsewhere.

included among such accessories or parts are rail sanding devices, lire door operators, grate shakers, reverse gear operators, ash pan door controllers, bell ringers, and water scoop operators.

lThe principal object of my invention is4 to provide a unity controlling mechanism for the various pneunia'tically operated devices on the locomotive, comprising a single bracket or valve base to which all of the penumatic'control .pipes lead and associated with which are the several manually operable valves by which the supply and release of fluid under pressure to and from the various pneumatically controlled devices is effected.

ln 'the accompanying drawing; Fig. 1 is a diagrammatic view, partly in section, of a pneumatic control mechanism for a locomotive, constructed in accordance with my invention; Fig. 2 a diagram, illustrating the various operating positions of one of the manually controlled valves shown in Fig. 1; and Fig. 3 a diagram, illustrating the operating positions of the other manually controlled valves.

According to my invention, a combined pipe bracket and valvebase 1 is employed to which the various pneumatic control pipes connect, such as pipe 2 for operating a pneumatic rail sander associated Awith the front drive wheels for sanding rails ahead of the front drive wheels when the locomotive is running forward; pipe 3 for sanding the rails at the rear drive Wheels ahead ofV the wheels when the locomotive is runningforward, pipe 4ly for sanding the rails at the iront drive wheels when the locomotive is moving in reverse; pipe 5 for sanding the rails at the rearvdrive wheels when the locomotive is inreverse; pipe 6 for controlling the fluid pressure for operating the fire doers; pipe 7 the grate shakers; pipe 8 the reverse gear; pipe'9, the ash pan doo-rs; pipe 10, the bell ringer; and pipe 11, the water scoop.

Pipes 2, 3,4, and 5 lead to a valve seat of the bracket 1 on which is mounted a rotary slide valve 12; pipes 6 and 7 to a valve seat having a rotary slide valve 13; pipes 8 and 9 to a valve seat having a rotary valve 141, and pipes 10 and 11, to a valve seat having a rotary slide valve 15.

The rotary slide valves 12, 13, 14, and 15 are contained in the respective valve chambers 16, 17, 18, and 19,1and are.l adapted to be manually operated by the respective handles 20, 21, 22, and 23.

riihe fluid pressure supply for the various pneumatic devices maybe taken from the usualmain reservoir 24, but in order toprevent possible depletion of pressure invjthe main reservoir by supply to the auxiliary devices, an additional supply reservoir is provided, which is charged with fluid under pressure through the operation of a governnor device 2G. rlhe governor device 26 may be .similar to that shown in prior Patent No. 1,181,969, of ill/'alter V. Turner, dated March 16, 1915, by which the additional reservoir is only charged from' the main reservoir when the pressure in the main reservoir has been increased to a prede termined tei-mined degree, communication through which fluid is supplied from the main reservoir to the additional reservoir is cut off.

rlhe additional reservoir 25 is connected to a passage 27 in the pipe bracket 1, said passage having branch passages which lead to the respective valve chambers 16, 17, 18, and 19.

The diagram shown in Fig. 2 does not represent the actual ,construction of the rotary slide valve 12, but serves merely to illustrate the operation of the valve.

lf' the handle 2O is turned to position a. as shown in Fig. 2, pipe 2 is connected to degree and belou7 said predea supply pipe 27 through cavity 28 in the rotary valve 12, so that fluid under pressure is supplied to operate the sanding device for supplying sand to the rails ahead of the front drive Wheels as the locomotive is running ahead. In position b fluid is supplied only to pipe 3 connected to the sanding device for the rear drive wheels for sanding the rails ahead of said Wheels when the locomotive is running forward. In position c, both pipes 2 and 3 are supplied With fluid pressure, so that the rails are sanded ahead of both the front and rear drive Wheels. In position Z fluid pressure is supplied only to pipe l for sanding the rails at the rear of the front drive Wheels While the locomotive is running rearward. In position e fluid is supplied only to pipe 5 for sanding the rails at the rear of the rear drive Wheels While the locomotive is in reverse, and in position f fluid is supplied to both pipes d and 5.

The diagram shown in Fig. 3 serves to illustrate the operating positions of the other three valves 13, 14, and l5.

For the valve 13 in position a fluid is supplied only to pipe G for operating the fire door. In position Z) fluid is supplied only to pipe 7 for operating the grate shaker, and in position o fluid is supplied to both pipes 6 and 7 for operating simultaneously both the fire door and the grate shaker.

Employing the same diagram shown in Fig. 3, the valve 14: in position a supplies fluid to pipe 8 for operating the reverse gear. In position b the valve supplies fluid only to pipe 9 for operating the ash pan doors, and in position c fluid is supplied to both pipes 8 and 9 for operating the reverse gear and the ash pan doors at the same time. Similarly, with valve l5, in position a the hell ringer alone is operated, in position Z) the Water scoop, and in position o both the bell ringer and the Water scoop may be operated.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. In a fluid pressure control apparatus for locomotives, the combination With a pipe bracket having connected thereto, pipes for sanding, for controlling the fire door, the reversing gear, and the bell ringer, of separate manually operable valves having seats on said pipe bracket, one for controlling the sand pipes, another the fire door pipe, another the reversing gear pipe, and another the bell ringer pipe.

2. In a fluid pressure control apparatus for locomotives, the combination with a pipe bracket having connected thereto, pipes for sanding, for controlling the fire door, the grate shaker, the reversing gear, the ash pan doors, the bell ringer, and the Water scoop, of separate manually operable valves having seats on said pipe bracket, one for controlling the sand pipes, another for controlling the lire door and grate shaker pipes, another the reversing gear and the ash pan door pipes, and another the bell ringer and Water scoop pipes.

In testimony whereof I have hereunto set my hand.

CLYDE C. FARMER.

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