US149109A - Improvement in railroad-signals - Google Patents

Description

H; s. Ev'ANs, decd. JANE D. EVANS, Ex`t1x.

Railroad Signals'.

Patented March 31, 1874.

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, n I A ltorneysf U NITEn STATES PATENT OFFICE JANE D. EVANS, OF WEST CHESTER, PENNSYLVANIA, EXECUTRIX OF HENRYl S. EVANS, DECEASED.

IMPROVEMENT IN RAILROAD-SIGNALS.

Specification forming part ofLetters Patent No. 149,109, dated March 31,1874; application filed July 29, 1873.

GAsE A.

tical cross-section of the same taken through the line y y, Fig. l.

Similar letters of reference indicate corresponding parts.

This invention has for its object to furnish an improved railroad-signal for vuse at stations, crossings, curves, and other places of danger, which shall be so constructed that the advancing train will itself set the si gna-ls to indicate its approach and departure, and whichV shall at the same time be simple and inexpensive in construction and reliable in use.

The invention will first be fully described, and then pointed out in theclaim.

A are the ties, and B are the' rails, of the roadway. C D are two pairs of inclined bars, which are placed at the sides of one of the rails B, at suitable distances apart, and are pivoted to said rail, or to other suitable support, in such positions that the free ends of said inclines will. b'e struck and pressed down by the wheels ofthe cars. The inner ends of the inclines of each pair are pivoted to opposite arms ot" the three-armed lever E, which is placed in a notch in the tie A, with its third arm projectingdownward. By this construction, as the wheels of the engine run upon either of the inclines C D, it presses the incline upon which -it runs downward. This When the train is moving in the opposite direction, the lever G, pivoted to the other side of the tie, will be operated by the three-armed lever E. To the outer ends of each pair of levers F G are attached the ends ofthe chain H, the middle part of which passes over and is secured to the wheel I, formed upon or secured to the signals J, which are pivoted to the upper ends of the posts K. The signals J of the two posts K are connected by two wires, L, the ends of which are connected by short chains to wheels formed upon or attached to the signals, so that either of said signals may be operated from the other, and both set or both withdrawn at the same time. In case the distance between the posts K be great, the wires L should be supported by intermediate posts N. To each of the intermediate posts N is pivoted an equal-armed lever, C, to the ends of which are attached outwardlyprojecting pins l?, to receive eyes Qattached to the wires L. This construction enables the wires to be made continuous, so that there will be no slack to be taken up by one of the signals before it can operate the other. The three-armed levers E are again raised to their former position as soon as the pressure of the wheels is removed from the levers or inclines C, by the springs B attached to the ties A, and which bear against the said three-armed levers, asshown in Figs. 1, 2, and 4.. The levers F Gr and inclines C D are provided with stops to limit their upward movement.

Having thus described the invention, what I claim as new, and desire to` secure by Letters Patent, is-

The combination of the inclines C D, levers E F G, chains H, and springs R, with rails B and signals J, in the manner and for the pui pose described.

JANE D. EVANS,

Exccutrx. Witnesses:

WM. WIIITEHEAI), EBEE MILES.

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