US1527472A - Railway-crossing gate - Google Patents

Description

Feb. 24, 1925- A 1,527,472

'* s. A. coMER RAILWAY cnos'siuo qua Filed Nov. 21. 1924 2 Sheets-Sheet 1 Zlmnntoz Feb. 24. 1925. 1,527,472

' S. A. COMER RAILWAY CROSSING GATE.

Filed Nov. 21. 1924- 2 Sheet-Sheet 2 1- 2 m w r ;1\'

. fl M j /Z I gwuenhz Patented Feb. 24, 1925.

UNITED STATES SAMUEL A. COMEE,

PATENT OFFICE.

or names, TEXAS.

v RAILWAY-CROSSING GATE.

Application filed November 21, 1924. Serial No. 751,238.

The object of the invention is to provide gates arranged in pair straddling the track and operated by the train to slide parallel to the track and close the crossing.

Another object is to provide means operated by the train for sliding one of the pairs of gates to close thecrossing and also means for returning said pair to open said crossing.

A further object is to provide a slidable carriage on which gates are mounted.

A construction designed to carry out the invention will be hereinafter described together with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings in which an example of the invention is shown, and wherein:

Fig. 1 is a plan view of one side of the improved crossing and gates,

Fig. 1 is a continuation joining Fig. 1 on the line ab,

Fig. 2 is an enlarged vertical sectional view taken on the line 2-2 of Fig. 1 the gatebeing open,

Fig. 3 is a detail of the train tripping means, and

Fig- 4 is a view similar to Fig. 2, the gate being closed.

In the drawings the numeral 10 designates a yoke placed transversely under the rails preferably in a guide-way 11 cut in a concrete or other foundation 12, said rails acting as guides or keepers to retain the yoke in place. There are two of these yokes, one on each side of the crossing, but each acts individually.

Each yoke has upwardly directed arms or posts 13 at each end on the outside of the track. To each post is secured the rear end of a gate 14 which extends forwardly parallel to the track. The forward end of each gate is supported by rollers 15. The gates are long enough to span the crossing.

For each yoke an operating rod 16 is mounted in guides 17 on the ties. Each rod has one end connected to a yoke and the.

other attached to a normally contracted coiled spring 18. hen a rod is slid forward the gate, which constitutes a carriage, will slide the gates attached thereto, over the crossing and close the same. This extends the spring which if not restrained, would immediately pull the rod back and open the gates, as soon as therod was freed.

In each guideway 11 a latch 19 is pivoted to one of the rails with its lower end 20 in the path of the yoke; while its opposite end is turned up to form a tripping arm 21 in the path of the flanges of the car wheels.

At a suitable distance from the crossing on each side, a lever 22 is pivoted near one end on a stud 23 011 the rod. The longer end of the lever has an elongated slot 2 1 receiving a fulcrum stud or post 25 rigidly mounted at the side of the track. The lever is directed forwardly with relation to the travel of the train and stands, normally at an acute angle to the track. On the inner end of the lever opposite its fulcrum, is a vertical post 26 (Fig. 3) which extends above the rail into the path of a laterally projecting tripping finger 27 carried by a bracket 28 hanging from the truck of the car- VVit-h parts shown in the positions of Figs. 1, 1 2 and 3, the operation is as follows:

A train approaching in the direction of the arrow in Fig. 1 would operate the gates on that side of the crossing. The finger 27 strikes the post 26 and swings the lever 22 on its fulcrum 25 and immediately the rod 16 is pushed forwardly so that the gates 14v are slid over the crossing by the yoke 10. As the swing of the lever continues the slot 24: compensates the foreshortening so that said lever may move to a position at right angles to the track and continue to swing past this position until the finger 27 rides from the post 26.

During the swing of the lever the yoke 10 is being moved forwardly in its guideway 11. Just before the finger rides off the post the yoke passes under the end 20 of the latch 19 and reaches the position shown in Fig. 4. When the rod 16 is operated to slide the yoke the spring 18 is elongated and placed under tension. If the latch was not used the spring would open the gate just as soon as the finger 27 disengaged from the post 26. It will be seen that'when the first wheel: passes over the crossing its flange will depress the arm 21 thus lifting the latch 19, whereby the yoke is released. hen the yoke is released the spring 18 will be free to pull the rod 16 lock and restore the gate to its open position as is shown in Fig. 2.

Various changes in the size and shape of "the different parts, as well as modifications crossing.

3. Ina railway crossing gate, a yoke slidably mounted under the track, gates carried by the yoke on each side of the track, train operated means for sliding the yoke and gates to 'close the crossing, means for retracting the yoke and gates to open the crossing,a latch for locking the yoke in the closed. position, and spring actuated means for retracting the yoke when the latch is released.

4. In a railway crossing gate, a transverse yoke, gate members secured to the end of the yoke, a rod attached to the yoke for sliding the same, and train operated means for sliding the yoke.

- 5. r In a railway crossing gate, a transverse yoke, gate members secured to slide by the yoke, a latch in the. path of the yoke having a wheel tripping projection, a rod for sliding the gate, a coiled spring attached to the rod and tensioned' when the rod is actuated, and train operated means for actuating the rod.

In testimony whereof I aflix my signature.

SAMUEL A. COMER.

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