US269394A - Railroad-signal - Google Patents

Description

(No Model.)

J. DOLAN.

RAILROAD SIGNAL.

Patented De0.19, 1882.

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JAMES DOLAN, OF SUOKASUNNY, NEW JERSEY.

RAILROAD-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 269,394, dated December 19, 1882.

Application filed July 1, 1882. (No model.)

To all whom it may coiicern: Be it known that 1, JAMES DOLAN, a citize of the United States, and a resident of Suckasunny, in the county of Morris and State of New Jersey, have invented a new and valuable Improvement in Railroad-Signals; and 1 do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being bad to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a vertical sectional view of my railroad-signals. Fig. 2 is a horizontal section of the same.

This invention has relation to alarm-signals for railroad-switches; and it consists in the construction and novel arrangementof a pivotpost carrying a segment-pinion, and a crankarm connected to a horizontal slide, a retracting spiral spring, and a slide-rack having a wire connection with the operating-lever of a switch, said parts serving, when the switch is set for the siding, to move an alarm-triggerattached to a locomotive, and when the switch is set for the main line toretract the horizontal slide which engages said alarm-trigger, all as hereinafter set forth.

1n the accompanying drawings, the letter A designates a case designed to protect the working devices within it from the effects of the weather.

B represents an upright post, the lower end of which is pivoted at O. A bearing, 1), is provided near the upper end of the post to hold it in proper position.

E represents a pinion, which is secured to,

the post 13, said pinion being provided with teeth on half of its periphery, as indicated in the drawings at F. The upper end of the post is provided with a horizontal or crank arm, Gr, the end of which is pivoted to one end of a connecting-rod, H, the other end of which is pivoted to a horizontal slide, K, which is designed, when the post or stem B is turned half around, to be projected a certain distance through a bearing, L, in the side wall of the case.

N represents a horizontal rack slide arranged in bearings P in the case, so as to enga'ge the pinion E. The teeth a of this rack are sunken or formed in alongitudinal recess,

the edges of which are raised a little above slide-rack N to move in either direction to adjust itself. The slide-rack N is operated by a wire, W, extending to a switch, and connected to the switch-lever or other moving part thereof. When the switch is set for the siding the slide-rack N will be moved in its hearings to turn the post or stem B and project the signal-slide K. When the switch is set for the main line the tension on the rackslide will be relieved, and the post will be turned back to its normal position by means of a reacting spiral spring, S, the ends of which are respectively attached to the post and the case-wall. The case is designed to be secured near the track in such position that the signal-slide K, when'projected', will extend toward the track sufficiently to engage a pivoted trigger, T, the end 61 of which hangs downward. This trigger is pivoted to an arm, V, which is adjustable up and down in bearings of an arm or bar, I, which is fastened to any suitable portion of-the frame of a locomotive.

To the upper end, e, of the pivoted trigger T is attached one end of a wire, 2, the other end of which is connected to the striking mechanism of a gong in the engineers cab. When the lower end of the trigger T strikes the slide K alongside the track the trigger will be de flected, sounding the gong.

This signal-operating device can be placed as far as necessary from the switch, and, if desirable, several of them can be arranged one hundred or more feet apart, all being counected and operated at the same time.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-- l. The signal-operating device consisting of the case A, pivoted post B, having the arm G, and pinion E, the signal-slide K, and connecting'rod H, the slide-rack 'N, and replacingspring S, and the wire W, connecting the sliderack to a lever or moving part of the switch mechanism, substantially as specified.

2. A signal-operating device having a piv- 5 oted post operated by segment-pinion rackslide, and spring, and having an arm, G, connected to a signal-slide, K, adapted to be pro jected when the switch is open, to engage the trigger of an alarm device attached to the 10- 1'0 comotive, substantially as specified.

1in testimony that I claim the above I have JAMES DOLAN.

Witnesses:

WILLIAM H. YOUNGS, VICTOR E. BoELL.

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