US1537187A - Train-actuated signal for road and street crossings - Google Patents

Description

May 12, 1925.

S. PAVILLARD TRAIN ACTUATED SIGNAL FOR ROAD AND STREET CROSSINGS Filed Nov. 5. 1924 Patented May 12, 1925.

UNITED STATES PATENT QFFICE.

.SAM PAVILLABD, OF DEGATUB, TEXAS.

Application filed November To all whom it may concern. Be it known that I, SAM PAvrLLAnn, a citizen of the United States, residing at Decatur, in the county of Vise and State of Texas; have invented certain new and useful Improvements in Train-Actuated Signals for Road and Street Crossings, of which the following is a specification.

My invention relates to signaling devices for street and road crossings and more particularly to train-actuated signals; and the object is to provide a simple rotary signal and simple meansfor actuating the signal by the wheels of passing trains and which will be positively and certainly actuated whenever a train passes and which will be actuated in plenty 01 time before the train reaches a crossing to prevent accidents. Other objects and advantages will be fully explained in the following description. and the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of this application.

Fig. 1 is a side elevation of the signaling devices and the means for actuating the signaling devices. Fig. 2 is a plan view ot the actuating devices. F ig. 3 is a cross-section, taken on the line of Fig. 1. Fig. 1

'1 is a cross-section, taken on the line -fi--i oi? Fig. 1. Fig. 5 is an enlarged detail view of the ratchet mechanism for rotating the signal. Fig. 6 is a detail view of a sounding device to be actuated along with the revolving of the signal. Fig. 7 is a detail view of the wheel-actuated mechanism.

Similar characters of reference are used to indicate thesame parts throughout the several views.

In the drawings a rail 1 is shown and a yielding bar 2 is opeiatively connected to the rail by clamps The bar 2 is carried by the hanger e to which the bar 2 i'srigidly connected. The bar 2 isyieldable vertically by reason of the spring supports for the hanger 4. Each hanger alias a foot piece.

5 which rests on top of a plunger 6 and this plunger is supported in the elevated position by a sprin 7 which supports the foot piece 5. The p unger 6 is attached to the foot piece 5 and serves as a guide to make the bar 2 move vertically. The spring 7 is supported in a hanger 8 and a tubular guide 9 is screwed through the bottom of the hanger 8 for the plunger 6. Both hangers 8 and their connections are duplicates. The bar 2 is drooped or curved downwardly oil-top nearthe ends so that the wheels of the train will run on the bar without knocking. The clamps are merely for holding the bar 2 close to the mill. Anti-"friction rollers 10 are carried by the bar 2 to prevent friction against the clamps 3. The tendency of the bar 2 is to move slightly in the direction of the moving train. The rollers 10 will cause the bar 2 to move vertically. The bar 2 actuatcs a lever 11 which is provided witha fulcrum 12 which 'is rigid with the rail 1. rail in the manner as the clamp 3. A foot piece 13 extends under the rail and. a strip 14. extends over a portion of the rail flange and is bolted to the foot piece 13. The bar 2 is operatively connected to the lever 11 by a U-bolt 15. The U-bolt is attached to the bar 2 by riveting or otherwise and a pin The fulcrum 12 is attached to the 16 prevents removal of the lever from the v U-bolt 15. The ill-bolt :15 slides'freely on the lever 11. The lever 11 actuates a link bar 17 which is pivotally connected thereto and pivotally connected to a crank 18 which is rigid with a shaft 19 which is prov led with bearings 20. The shaft lflis provided with an upstanding crank 21. A cord or cable 22 connected indirectly to the crank 21. The cord 21 runs through a sleeve 22 and the cord is intercepted by a spring 23 to give resiliency to the cord. The object is to prevent sudden jerks on the signaling devices when the train wheels strike the bar 2.

T hecord 22 runs under an idle pulley 2d and is attached rigidly to the ratchet lover or bar 25 and 18 extended and attached to the spring 26 which is attached to a rigid bar 27. A spring 28 is attached to the bar 27 and to a compound lever 29 which is provided with. a fulcrum 30 which is attached to the lever 25. The lever 29 is pivotally connected .to another lever 31- the ratchet wheel 23 to turn. This will revolve the signal disks 3% by the repeated striking of the bar 2 by the wheels of the train. The two wires 26 and 28 serve to release the lever 29 from the ratchet wheel and to draw the slack out of the cable 22 to prepare for the next stroke. Another object of releasing the ratchet wheel is to permit the signal disks to return to their normal inoperative positions. In order that the disks may come back to the inoperative position, as shown in Fig. 1, one disk may be made heavier than the other. Various changes in the sizes, construction, and arrangement of the several parts may be made without departing from my invention.

In addition to the revolving signal above described, a sounding device is provided. Revolving l'iea ers 36 are mounted on the shaft 33. The boaters 36 are pivotally connected to arms 3'? which are rigidly clamped on the shaft 233. bell ll is mounted on an upright and a striker or tongue 39 is mounted on the upright A spring 4-0 is attached to the upright 2-38 and, to the striker 39. 'fhe heaters 36 actuate the striker 39 and the spring t0 causes the tongue to strike the bell ll. Whenever the signal disks 3 f are revolving, the bell will be sounding.

"Yllftt I claim is,

1. Signaling apparatus for street and road crossings comprising a revolving shaft and signaling devices revolving therewith, sounding devices consisting of a bell and a spring actuated striker co-operating with said signaling devices, arms actuated by said shaft, pivoted boaters carried by said arms for operating said striker, and means to be actuated by the wheels of a passing train for driving said shaft.

2. Signaling apparatus for street and road crossings comprising a revolving shaft and signaling devices revolving therewith, sounding devices consisting of a bell and a spring controlled striker co-operating with said signaling devices, revolving arms carried by said shaft, and heaters loosely connected to said arms for actuating said striker.

3. Signaling apparatus for street and road crossings comprising a revolving shaft and signaling devices revolving therewith,sounding devices consisting of a bell and a spring controlled striker co-operating with said sig naling devices, revolving arms carried by said shaft, heaters loosely connected to said arms for actuating said striker, movable means to lie art atec. by the wheels of passing trains, and a cable actuated by said mov able means for revolving said shaft.

l. Signaling apparatus for street and road crossings comprising a revolving shaft and signaling devices revolving with said shaft, sounding devices consisting of a bell and a spring controlled striker cooperating with said signaling devices, arins carried by said shaft and provided 'ith means for actuating said striker, a ratchet mechanism for revolving said shaft, and means actuated by the wheels of passing trains for operating said ratchet mechanism.

5. Signaling apparatus for street and road crossings comprising a revolving shaft and signalingdevices revolving therewith, ratchet mechanism for revolving said shaft,

a depressing bar to be actuated by the wheels of passing trains, a hanger carrying said bar and yielding means concealed beneath a railway rail supporting said hanger, clamping devices for guiding the vertical movement of said bar, a crank shaft operativcly connccted to said bar, and a flexible cable operatively connected to said shaft and to said ratchet mechanism for revoh'ing said shaft.

In testimony whereof, I set my hand, this 15th day of October, 192%.

SAM Pl XVILLARD.

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