US898968A - Signal. - Google Patents

Description

. g i l l l i l l i i i l i i unifi-En sriirirs DVIDH. COliER, OF PIEDMOXT,

SIGNAL.

Application filed January 23, 1907.

Specification of Letters Patent.

. Patented Sept. 15, 1908.

Serial No. 353,756. Y

Io all 11:71am. it may concern.:

Bc it known that we, Davii li. Cokin: and thereof and from said second electro-magnet,

'iii'rifiienii A. Seiiiriiiiouoii, citizens of the United States, residing at Piedmont and Choccolocco, respectively, in the county of Calhoun and State of Alabama, have invented new and usefulv Improvements in Signals, of which the following is a speciii4` cation.

This invertion relates to signals, thc object of the invention being to provide an automatic electrically actuated signal which is operated at a distance from the switch in connect-ion with which it is used for the purose ol' indicating to the engineer, at a point suiticiently remote from the switch, the fact that the switch is open, giving the engineer time. to stop his train and avoid an accident.

.Yith the above general object in view, the invention consists in the novel construction, combination and arrangement f parts hereinafter more. fully described, illustrated and claimed.

In the accompanying drawings, Figure 1 is a diagrammatic view showing the complete appai'atus used in connection with a railway switch. F ig. Z is an enlarged sectional view of one of the corners and its connections. F ig. 3 is a diagrammatic plan View of the circuit.

Referring to the drawings, 1 designates the rails of' the main track and 2, the rails of a switch, while '3 designates a switch stand having connections with one or both of the switch rails for opening and closing the switch in the manner well understood.

ln carrying out the present invention, we employ a circuit closer 4 arranged adjacent to the switch and interpose an operating connection between the standard or shaft nf the switch stand and said circuit closer. This operating connection is shown as consisting of a slide rod 5 which carries a wedge shaped dog 6 which operates between the spring arm 7 of the circuit closer and a iixed abutment or shoulder S arranged opposite thereto, whereby as the connection 5 is moved in the direction which o )ens the switch, the circuit closer 4 is closed.

From the circuit closer, a wire 9 passes through the battery 10 and extends to an electroanagnet 11 arranged at a point reinote from the switch. Another wire 12 extends from the electro-magnet 11 to another electro-magnet arranged` at another point l l i i l i i remote from thc switch at the opposite side a wire 13 extends back to the-circuit closer 4.

The twofelectro-magnets referred to may be located at any necessary distance from the switch and are shown as supported by signal posts 14 to which the wires are led over suitable poles 15. On the upper end of each post- 14 there is arranged a casing 1G having a depending extension 17 in which works a signal or target 1S movable up and down so as to carry the same before or away from a window or opening formed in the side of the 'casing so as to dis )lay said signal or target to the engineer or iide the saine, according to the condition ofy the switch. 1S is carried by one end of a lever 19 inoiinted within the casing and fulcruined at 20, while the opposite end of said lever carries a weight 21 just sutiicient toV uphold the signal or target 18 and carry the saine away from before the window in the casing. Connected with the lever 19 is an armature which is attracted by the electro-magnet within the casing, when the latter is energized by the battery 10 upon the closing of the circuit closer 4 by the means hereinabove described.

YVhen the switch is closed and the main track is clear, the circuit closer 4 is opened and does not affect the signals 18. As soon, however, as the switch is thrown open by means ot the connection 5, the circuit closer -1 is closed and the electro-magnets 11 are energized so as to pull down thel leverslQ and lower the signals 1S to a osition where they may be readily seen by t ie engineer in time to stop his train and avoid rainning into the open switch.

1. In an apparatus ot the class described, the combination of a railroad switch, a signal circuit, means for opening and c'osing the circuit by the operation of the switch, and a signal device,

a support, a casing thereon having a depending portion provided with openings, a lever fulcrunied in the. casing, an electro magnet, an armature connected with the lever and disposed above the electro magnet and arranged at one side of the 'fulci'um ot the lever, a weight mounted on the lever at the side of the iulcrum opposite from the armature, a vertically-extending link depending from the The signa said signal device comprising PATENT OFFieE'w- Y,

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weight, and a target suspended on the link and movable back and forth with respect to the openingof the casing and counterba-lanced by the said weight.

2. .T n an a paratus of the class described, Il the combination of a railroad track, a switch, a-ineinber forA throwing the switch, a circuit closer disposed at one side ofthe switch and including normally separated contacts, an element connected with the extremity of the said member and arranged to inovc the contacts into engagement, a plurality of signaling devices arranged at distant oiiits in o osite directions 'from the switcli', a metal ic return circuit between both signaling devices, and a shunt between the two sides of the circuit and connected with the .sa-id contacts, each signaling device coin rising a casing having an opening, a lever ulcruined in the casing, a weight on the lever at one side of its ulcruin, a target suspended from the extremity of the lever opposite troni that havin@v the Weight, an electro magnet supportec in the casing and connected with t said circuit, and an armature sus Vended on' the lever at a oint between its fu crum and the target aiicliarranged to lower the target when the circuit is com leted.

3.. an apparatus o the class described,

2 l- I .j Y Y I I I.. Y* g. n

the combination of a track switch, signaling devices located at a distanceroin' the switch at each side of the latter, a metallic return circuit between'botli devices, a- 'shuiit circuitv Y between the two sides ot the said metallic circuit, a circuit closer includiiiga pair of normally separated contact-sand connected in the shunt circuit, a source of current connected iii series w'tli the circuit closer, a casing mounted at one side of the switch and inclosing the said'sourcc and circuit closer, a nieinber extending into the casing and mounted to engage one of the contacts for pressing the latter against the other Contact to close the circuit, means in the casing for guiding the said element, a ineinbei connected with the switch to move tlic same, and a hinge joint between the member and elcinent for actuating the latter simultaneously with 'the Aopening and closing of the switch. In testimony whereof, we aHix oufit signatures in presence of two witnesses.

DAVID H. COKER. 'HTFIELD SCARBROUGH.

Witnesses:

DANL. CAWDEN, A. SHARPE STEWART.

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