US1416926A - Safety device for rolling stock - Google Patents

Description

W. S. ARLESKIE.

SAFETY DEVICE FOR ROLLING STOCK APPLICATION FILED DEC. :0, 192:.

Patented May 23, W22.

2 SHEETS-SHEET 1.

W. S. ARLESKIE- SAFETY DEVICE FOR ROLLING STOCK.

APPLICATION FILED DEC. I0, I92]- IAJI MQBI Patented y 23, W2.

. 2 SHEETS-SHEET 2- 3 name nto z SAFETY DEVICE FOR ROLLING STOCK.

intense.

Application filed December 10, 1921.

To (all 107mm it may concern:

Be it known that 1, WILLIAM S. Annnsmn, a citizen of. the United States, residing at Pitt-ston, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Safety Devices for Rolling Stock, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in safety devices for rolling stock and has relation more particularly to a device of this general character especially designed and adapted for use in connection with the main line of an. airbralre system, and it is primarily an object of theinvention to provide a noveland improved device of this general character which operates to release the air to set the brakes in the event a wheel of the rolling stock should jump the track or in the event thebody of the car should have undue lateral swinging movement, such as may result in traversing a curve at too high a speed.

Another object of the invention is to provide a novel and improved device of this general character particularly adapted for use with a motor, such as a locomotive, and in association with the forward wheels of said motor, said device operating, in the event one of said wheels jumpsthe traclgto open the train line to set the brakes.

llurthermore, it is an. object of the invention to provide a novel, and improved device of this general characterwhich is normally held in positionupon the operating handle of a normally closed valve and which device, in the event a wheel: should. jump the track or the body of the rolling stock have undue lateral swinging movement, will cause the valve to move into open position, the mounting of the device upon the operating handle of the valve being such to permit said device to disengage from said operating handle should the'drop ofthe wheel be excessive,.thereby preventing 1njury to the train line or other parts of the brake system. i p 1 i i The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved safety device whereby certain 1mportant advantages are attamed and the device rendered simpler, less expensive and Specification of Letters Patent.

Patented May 33, itmdi.

Serial No. 521,387.

otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may he the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a fragmentary view in side elevation and of a diagrammatic character illustrating a safety device constructed in accordance with an en'lbodiment of my invention; and applied in connection with a motor having a single pair of front wheels;

l igure 2 is a diagrammatic view in top plan of the structure as illustrated in Figure 1;

Figure 3 is an enlarged fragmentary view partly in section and partly in elevation illustrating the operative connection. of my improved device with theoperating handle for the normally closed valve;

Figure 4 is a fragmentary diagrammatic view in side elevation illustrating my invention employed in connection with a loco motive or motor having two pairs of front wheels; and

Figure 5 is a diagrammatic view in top plan of the structure disclosed in Figure 4;.

[is disclosed in the accompanying drawings, L diagraunnatically indicates the forward or front portion of a locomotive or other motor having associated therewitha single pair of supporting wheels W. M denot s a portion of the main line of" an air brake system of a conventional or well known type. 1 denotes an equalizing plate of a conventional type coacting with each of the wheels W.

The pipe line: M at the forward portion of the locomotive or motor L has in communication therewith a branch pipe 1 disposed in such direction as to extend above a wheel W and across the axis thereof. 2 denotes a second branch pipe in communication with the pipe line M, said branch pipe2 extending transversely of the forward portion of the locomotive or motor L and terminating in a portion positioned a desired distance above the second wheel W and. extending across the axis of said wheel.

llach of the branches 1 and 2 inwardly of but in close proximity to the vertical center of the adjacent wheel lV has interposed therein a normally closed valve 3. The valve 3 is provided with an operating handle 4-. which, when the valve 3 is in its normal or closed position, extends forwardly of the locomotive or motor L and intersects the longitudinal plane through the axis of the adjacent wheel W.

Slidably mounted upon each of the operating handles l is an elongated sleeve 5, opposed walls of said sleeve 5 being provided with openings 6 which, when the sleeve 5 is in applied position upon an operating handle a, is in register with an opening 7 disposed through said operating handle. The member 4- is angular in cross section and the bore of the sleeve 5 is of corresponding cross section so that when the sleeve 5 is applied to the handle at, the same are held against relative rotary movement. Extending through the registering openings 6 and 7 is a wire pin 8, preferably of copper. It is to be understood. however, that the pin 8 may be formed of any fragile material which can be used with convenience and facility.

The applied pin 8 serves to hold the sleeve 5 against displacement upon the handle 4; and offers sufficient resistance to cause normal strain imposed upon the sleeve 5 to swing the handle 4 in a direction to bring the valve 3 into open position. As particularly illustrated in Figure 3, the opposite extremities of the pin 8 are angularly disposed or bent so that the same is held in working position.

The outer end portion of the sleeve 5 is flattened to provide a perforated ear or lug 9 to which issecured an extremity of a flexible member 10, preferably a chain. The opposite end portion of the flexible member or chain 10 is secured to a bracket 11 fixed to an equalizer plate P.

Under normal conditions, the flexible member or chain 10 possesses sufficient slack to compensate for the vibrations of the body of the locomotive or motor L incident to travel or in making turn but, in the event a wheel N should jump a rail, the resultant drop of the wheel and of the equalizing plate P will impose suflicient pull or strain upon the associated flexible member or chain 10 to swing the operating handle a sufficient to bringthe valve 3 into open position, whereupon the line M is open to the atmosphere resulting in the required reduction of pressure to cause the setting of the brakes.

Upon undue strain being imposed upon the sleeve 5 upon the dropping of a wheel W, after the handle 4 has been swung downwardly into a substantially vertical position, will result in the shearing off of the pin 8 so that the sleeve 5 will be readily disengaged from the handle 4. By this provision, it will be at once understood that the valve 3 may be swung into open position with the possibility substantially cliniinalcd of the branch 1 or 2 or the main pipe line lil being broken or otherwise injured.

The free end portion of nch ol' the branches 1 and 2 forwardly of the valve 3 is held by a bracket 12 or the like.

It will be understood that the device will also operate to move a valve 3 into open position in the event that the body o l' the locomotive or motor L has undue lateral swing ing movement, especially as the result of traversing a curve at excessive speed. lily excessive lateral movement, it is to be understood that I particularly refer to tii pping of the locomotive or motor.

In the embodiment of my invention as illustrated in Figure l, I show my invention applied to a locomotive or motor L of a type wherein the forward portion thereof has associated therewith two pairs of wheels TV, said wheels being; carried in a. conventional manner by a pony truck 'l. The main pipe line M has in communication therewith a pair of branches l and a second pair of branches 2, each of said branches '1 and 2 being associatci'l with a wheel W in substantially the same manner as has hcrciubcl'ore been set forth with respect to the branches 1 and 2. interposed therein a normally open valve $3 in the same position as has hereinbefore been stated with respect to the valves 3.

Each of the valves 3 has engaged with the operating" handle at thereof a sleeve 5. The sleeve 5 is constructed in the same manner as has been before explained in connection with a sleeve 5. Each of the sleeves 5 connected by a flexible member or chain '10 with a side sill 1st of the truck 'l, so that in the event a wheel lV should jump a rail. the adjacent flexible member or chain It) will operate through the instrumentality of the sleeve 5' to move the normally closed valve 3' into open position so that the prcssure within the line M will be reduced to effect the required setting of tho braluis.

From the foregoing; description it is thought to be obvious that a sa l'cty device for rolling; stock constructed in acrordaucc with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arraiurenicnt and formation of the several parts heroin shown in carrying out my invention in pram tice except a hereinafter claimed.

I claim:

1. The combination with a vehicle. a

inountingr for a wheel therefor, and a pipe Each of the branches l. and 2 has.

amaze line for an air brake system carried by said vehicle; of a normally closed valve associated with said pipe line, an operating member for the valve, and a fragile connection between the operating member and the mounting for the Wheel.

2. The combination with a vehicle, a mounting for a Wheel therefor, and a pipe line for an air brake system carried by said vehicle; of a normally closed valve associated with said pipe line, an operating member for the valve, and a flexible member connecting the operating member and the mounting for the Wheel, saiol flexible member being normally slack, the connection of the line for an air brake system carried by said 20 vehicle; of a normally closed valve associated with said pipe line, an operating member for the valve, a sleeve engageable With the operating member for the valve, a fragile member connecting the sleeve and operating 25 member, and a connection between the Sleeve and the mounting for the Wheel.

In testimony whereof I hereunto affix my signature.

WILLIAM S. ARIJESKIE.

Images