US1161729A - Automatic train-stop. - Google Patents

Description

W. REED.

AUTOMATIC TRAIN STOP.

APPLICATION FILED JUNE 22. I915- Patented Nov. 23,1915.

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W. REED.

AUTOMATIC TRAIN STOP.

APPLICATION FILED JUNE 22. I915.

1,161,729. Patented Nov. 23, 1915.

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usurp sums PATENT OFFICE.

WILLIAM REED, OF OI-IILIJICOTHE, MISSOURI.

nu'roivrnrrc TRAIN-STOP.

To all whom it may concern .1 n I Be it known that-I, WILLIAM REED, a citi zen of the United States of America, residing at Chillicothe, in the county of Liv.-

ingston and State of Missouri, have invented new and useful Improvements in Automatic Train-Stops, of which the following is a specification.

This invention relates to certain novel and useful improvements in automatic train stopping apparatus whereby the propelling power of the motor car will be out off and the airbrakes applied in the event of the car or train running into a danger zone.

In carrying out the present invention, it is my purpose to improve and simplify the general construction of automatic train stops and to provide a train stop which will operate efficiently and effectively under all conditions and wherein thecomponent parts will be so arranged and correlated as to reduce the possibility of derangement to a minimum.

WVith the above and other objects in View, the invention consists in the, construction, combination and arrangement of parts here inafter set forth in and falling within the scope of the claim.

In the accompanying drawings: Figure 1 is a fragmentary side elevation of a track way and locomotive thereon showing my in vention installed. Fig. 2 is a fragmentary bottom plan view of the motor car showing a portion of the car carried mechanism. Fig. 3 is a diagrammatic view of the car carried mechanism. Fig. 4 is a fragmentary top plan view of the trackway showing the trackway and the track instrument. Fig. 5 is a view in side elevation of the track instrument.

In accordance with my present invention, track instruments are arranged along the trackway and appropriately spaced apart and these instruments are preferably controlled from the respective road signals. In the present instance, each trackinstrument comprises a base plate 1 suitably fastened to adjacent ties of the trackway at one side of the lines of rails in proximity to the particular controlling semaphore or signal. This base plate 1 extends longitudinally of the trackway and a lever 2 is pivoted centrally upon a pivot pin 3 uprising from the base plate 1 and this lever extends longitu Specification of Letters Patent. Patgnted NOVQZ3, 1915, Application filed June 22, 1915. Serial No. 35,641., l

dinally of the track. F'astened to the lever 2 adjacent to one end thereof and upstanding therefrom is an arm I, while fastened to the remaining end of the lever is one. end of a chain 5 or other flexible element trained over suitably arranged guide sheaves 6 and having the remaining end thereof connected with the signal blade of the adjacent semaphore. When the signal blade ofthe semaphore moves to danger position a pull is ex- 7 I erted upon the chain'5' and the latter swings the lever 2 about the pivot pin 3 to move the arm 4 into active position.

7 designates a springhaving one end fastened to the chain end of the lever 2 and the remaining extremity secured to an adjacent tie and this spring acts to swing the lever 2 to inactive position when the signal blade moves to a position indicative of clear, the spring serving to maintain the lever 2 and arm in inactive position normally.

Suitably secured to adjacent ties in proximity to the inneredge of the base plate 1, that is, the edge of the plateadjacent to the track rails, and spaced apart along such edge are stop lugs 8 disposed at the opposite sides of the pivot pin 3 and acting to limit the swinging movement of the lever 2 to active and inactive positions respectively.

Locatedin the train line air pipe of the air brake system of the train is a valve 9 and connected with the upper extremity of the stem of the valve 9 is a cross arm 10 having the extremities thereof projecting beyond the opposite sides respectively of the locomotive. Secured to the locomotive at the opposite sides thereof are guide sectors 11 upon which the respective end portions of the cross arm 10 rest, the guide sectors serving to maintain the cross arm in horizontal position in the swinging movement thereof to open and close the valve.

12 designates the throttle lever controlling the throttle valve of the locomotive and mounted upon the throttle lever and capable of sliding movement relatively thereto transversely thereof is a bar 1.3 connected with the releasing. rod of the latching dog in such manner that in the movement of the bar the latching dog will be actuated to release position so that the throttle valve lever may be swung to closed position. Connected with the bar 13 is one end of a chain 14 or other flexible element trained through guide sheaves and having the remaining end thereof connected with branch chains 16 that are connected with the cross arm 10 at the opposite sides of the fulcrum of such arm respectively.

Normally, the cross arm 10 is in a position at, right angles to the longitudinal dimension of the locomotive and is held in such position is exerted upon the chains 16 and 14 and in the initial movement of the bar 13 under the action of the chains 14; the throttle lever is unlatched, while in the continued movement of the chain and bar, the throttle lever'is swung to closed position, thereby cutting ofl communication between the steam dome of the boiler and the drive cylinders of the engine.

I claim:

In automatic train stopping apparatus, a valve located in thebrake pipe of the air brake system, a cross arm secured to the stem of said valve and having the end portions thereof projecting beyond the sides of the locomotive respectively, guide sectors carried by the respective sides of the locomotive and receiving the respective end portions of said cross arm, and a connection between said arm and the throttle lever of the locomotive whereby in the movement of the cross arm to open said valve the throttle lever will be actuated to closed position.

In testimony whereof I afiix my signature in presence of two witnesses.

7 WILLIAM REED.

Witnesses:

' THOMAS HARDIN,

ISAIAH LEE TALLEY.

Copies of this patent may be obtained for five cents each, by addressing the Oommissionerof Patents,

7 Washington, D. O.

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