US540641A - Railway-signal - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

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' RAILWAY SIGNAL. .No. 540,641. Patented June 11, 1895.

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RAILWAY SIGNAL. I No. 540,641. Patented June 11, 1895.

UNITED STATES WILLIAM DAVES,

PATENT FFICE.

RAILWAY-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 540,641, datedJune l1, 1 895.

Application filed December 29, 1894. Serial No. 533,328. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM DAVES, a citizen of theUnited States of America, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Railway- Signals; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and figures of-referenoe marked thereon, which form a part of this specification.

My invention relates to improvements in railway signals, of that class combining mechanical and electrical devices whereby the signal mechanism is controlled by an electrical circuit, and after the restoration of the circuit and during its force'upon a magnet, is operated by alever.

I have fully and clearly illustrated my improvements in the accompanying drawings, wherein Figure 1 is a view in elevation of the apparatus fixed to a signal-pole and in operative connection with the signal, also showing an electrical track-circuit for thesignal-magnet. Fig. 3 is a similar view showing the relation of the operating parts when the signal-magnet is out out of circuit. Fig. 2 is a detail of side and edge views of the respective sliding rods, the clamp or looking rod, and the lockingroller. 7

Referring to the drawings, A designates the signal-pole or post of any proper size to support the signal and the box or casing containing the operating rods and magnet.

B designates the signal-casting carrying the signal B, and fulcrumed to the signal-post as usual.

0. designates the casing or box held to the signal post by means of bolts projected through suitable flange-pieces, substantially as shown in the drawings. A door may close the casing in the part exposed in thedrawings, and be secured by any proper fastenings.

In the casing C is arranged a signal sliding- -rod 1, having its upper end connected to the signal by means of a rod 2, the connection be- -monly employed for the purpose.

ing indicated at 3. This rod 1 is formed with a curved or semi-circular recess 4, in which the locking-roller becomes seated when the rods are in connection to operate the signal.

vIn thecasing, resting with one side against the rod 1, is another rod 5, constituting the lever sliding-rod, having its lower or outer end suitably connected to the hand-lever, not shown, as the connections may be those com- The lever sliding-rod 5 has a movement in relation to and in connection with the rod 1 sufficient to move the signal to and from the positions of safety and danger. In this red 5 is formed a mortise or slot '7, extending entirely through, wherein is loosely arranged a roller 8,.Wlli0h has a diameter about one-third greater than the thickness of the rod 5, so that under the conditions hereinafter specified, the roller will be pushed into the recess 4 of the rod 1, and

the two rods thus held in operatve connection to move the signal.

D designates a clamping-bar hung inthe oasing on a bearing 9, to hang parallel with the rods 1 and 5. The lower end of this clamping-bar D is beveled off, as at 10, to be en-' gaged by the end of the armature, as hereinafter specified. A spring 11 may be used to return the clamping-bar to its position when moved out and away from the rod 5. Keepers a, a, are secured across the casing to keep the respective rods in alignment and serve as guides to them in their movements. The casingB is enlarged at the lower portion as shown, to take a magnet E, arranged in circuit with a proper electrical agency or source, which may be of the kind and arrangement indicated inthe drawings in Fig. 1. The armature 12 of the magnet E is pivotally supported at 13, and is provided with a roller 14, in its free end to engage the bevellO of the clampingbar D, as shown in Fig. 1 of the drawings. Stops b, b, may be placed in the casing to limit the movement of the armature.

It will be perceived from the foregoing de-' scription, that the signal sliding rod 1 which connects to the signal rodis provided With a recess in its edge or side, deep enough to take about one-third of the roller 8 and the lever sliding-rod 5 connects with the rod or rods of the operating lever in the signal house or sta- IOO tion. When the mortise or slot in the rod 5 and the recess 4 align or register, the roller 8 will be pushed into the recess by the clamping-bar which will be held in locked position by the armature. When the magnet is cut out of the circuit and de-energized, the armature will drop away from the poles of the magnet and thus release the clamping-bar, when the signal will be moved to danger, tilting by gravity and pushing down the slidingrod 1, because after the release of the clamping-bar the roller 8 will be free to recede from the recess in the signal sliding-bar. When the circuit has been restored the armature will be attracted, and then moving the lever sliding'rod until the roller comes opposite the recess in the signal sliding rod, the clam pingbar will push the roller into the recess and the armature will be drawn up and lock the clamping-bar in place, and the rods are then in such relation and connection that the signal can be moved as desired. As long as the magnet is out of circuit and the clamping-bar is free, the signal cannot be operated by the lever, because the lever sliding-bar can then be moved freely and without effecting operative connection with the signal sliding rod.

I have shown the apparatus in vertical p0- sition but it may be used arranged in horizontal position.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination in a railway signal, of a suitable casing, a sliding signal rod having one end connected to the signal and formed with a semi-circular recess, a sliding lever-rod formed with a mortise or slot, a roller arranged loosely in the slot, a swinging bar having a beveled end portion and adapted to hold and push the roller through the slot into the recess 40 in the signal sliding rod, an armature to hold the swinging rod against the lever sliding-rod, and a magnet to actuate the armature.

2. The combination with a signal and an electric circuit, of a signal sliding-rod having 4 5 connection to the signal and formed with a curved recess, a lever sliding rod formed with a slot, a roller loosely arranged in the slot, a clamp provided with a spring to push the roller forward in the slot and into the recess, a magnet, and an armature pivotally mounted at one end and provided with a roller in the other end to bear against the clamp to hold the locking-roller in engagement with the signal sliding-rod and lock the two sliding-rods in operative connection.

3. In combination, the two sliding-bars, a roller loosely carried in one of them and adapted to engage the other, a swinging clamp to hold the roller in such engagement, and an

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