US90803A - William l - Google Patents

Description

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Letters PatentNa 90,803, dated June 1, 1869.

SELF-ADJUSTING-SWITCH FOR STREET-CARS.

Tho Schedule referred to in these Letters Patent and making paxt of the same.

To all whom 'it may concern Be it known that I, WILLIAM L. YANTIS, of Brownsville, in the county of Saline, and State of Missouri, have invented a new and useful Improvement in Self- Adjnsting Railroad-Switches; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art tomake and use the same,reference being had to the accompanying drawing, forming part of this specification, in which'- l Figure 1 represents a portion of a railroad-track to' which my improved switch has been attached.

Figure 2 is a view of the under side 'of my improved switch-block.

Similar letters of reference indicate corresponding parts. e

My invention has for its object to improve the construction offswitches 01 turnouts, so that they may be self-operating, not requiring the service of a switchman, a'nd, at the same time, may be safe and reliable, being always in proper position; and

It consists in the switch-blocks, constructed and operating in the manner hereinafter more fully described.

Arepresents the rails of the main track B represents the rails of the switch-track, upon which the cars pass when moving from right to left; and A O represents the rails of the track upon which the cars pass when moving from left to right.A

Each rail'is notched where the rails of tbe other track cross it, to allow the flanges of the wheels to conveniently cross, as shown in g. 1.

In the angle where the branch tracks meet the main track, is pivoted a block, D, which is made in about pose set forth. v

the form shown in the drawings, varying slightly, ac-l cording as the curve is more or less sharp.

The blocks D rest upon and are pivoted to bed-plates or washers securely attached to suitable supports.

The blocks D are provided with ciled or other springs, E, the form or kind of which is immaterial, and which are designed to be so connected with the blocks D as to hold the said blocks in position to guide the cars to the right-hand switch-track, as they appreach the switch from either direction.

As the cars passfrom the switch to the main track, in either direction, the flanges -of the wheels strike against the block D, and push it around into-the position shown in red in iig. l, allowing the cars to pass on unobstructed.

As soon as the block D has been released fromv the car-wheel, the spn'ng E revolves it back to its former position.

With switches constructed in accordance with-this invention, no switchman is required, and, atthe same time it will be impossible for the cars to take the wrong direction, thus making them entirely safe.

Having thus described my invention,

vWhat I 4claim as new, and desire to secure by Letters Patent, isj The pivoted switch-block D, constructed substantially as herein shown and described, and provided with a coiledor equivalent spring, in combination with the rails of the main and switch-tracks, as and for the pur- WILLIAM L. YANTIS. Witnesses:

MASON BROWN,

G. S. REMBEBT.

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