US339018A - Ingek - Google Patents

Description

2 Sheets-Sheet 1. W. M. SOHLESINGER.

(No Model.)

ELECTRIC RAILWAY.

PatentedlMar. 30, 1886.

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W. M. SOHLESINGER.

ELECTRIC RAILWAY.

No. 339,018 Patented Mar. 30, 1886.

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WILLIAM M. SCHLESINGER, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC RAILWAY.

SPECIFICATIONforming part of Letters Patent No. 339,018, dated March 30, 1886.

Application filed November 24, 1885. SerialNo. 183,870.

To all whom, it may concern:

Be it known that 1, WILLIAM M. ScHLEs- INGER, asubject of the Queen of Great Britain, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Electric Railways, of which the following is a specification, reference being had therein to the accompanying drawings, where- 1n- Figure 1 is a diagram showing line of electrical conductors, one of which is made up of disconnected or insulated sections, safety devices for said sections, a feeding-conductor for the safety devices, a generator, and an electrical indicator and circuit-connections to the safety devices, all arranged in accordance with my invention. Fig. 2 is a diagram showing one of the conductor-sections, a preferable form of safety device, indicator, and its circuit-connections to the safety device. Fig. 3 is a plan of detail modification, and Figs. 4, 5, and 6 are detail plans of modifications of safety devices and circuit-connections with the indi cator-box.

My invention has relation to line circuits or conductors for electric railways or for other purposes, and has particular reference to that form of railways wherein one or both lineconductors are divided into sections and each section provided with a current safety device, so that when the electrical condition of any one or more of the sections becomes faulty or defective the excess of current passing to the faulty section will cause the safety device to act to cut the section out of the line-circuit, and thereby prevent the safety of traffic or continuity of travel of the whole line being endangered by such faulty or defective section; and it has for its object to automatically locate a defective or faulty section after it has been out out of the linecircuit, in order that it may be quickly repaired. To accomplish this result I provide one or more indicatorboXes at the generator or other stations located along the line of way, and provide for connecting each section or its safety device with a separate call or marked drop-plate in the indicator-box, so that when an excess of current passes to a section and operates its (No model.)

safety device to cut the section out of the linecircuit the safety device will also act to close or interrupt the circuit to the individual call or plate for said section in the indicatorboX, and therely automatically locate the faulty section, so that the repair or line men can go to it and repair it without imposing upon them the labor of hunting up such faulty section.

My invention accordingly consists of a linecircuit having sections, each of which is pro vided with a safety device, a feeding conductor or conductors for the safety devices, an indicator-box, and circuit connections between the safety devices and the indicator-box, as hereinafter set forth and claimed.

In the drawings, A represents a line of railway; B, the cars having electric motors and traveling connections with the line-conducto rs G O,of any of the well-known or other forms. One of the conductors, O, is divided into disconnected or insulated sections 0, and each section is provided with a current safety device, D, in circuit with a feeding-conductor from generator E by way of wire 0 all of 7 which may be variously constructed and arranged as described and shown in an application for United States Letters Patent filed by me of an even date herewith, and I do not herein confine myself to any particular division of the line-conductors into sections, nor to the safety devices and their feeding-conductors.

At a suitable point or points along the line of way, preferably at the generator or working-station, I locate an indicator-box, F, having suitable calls or drop-plates, f, equal in number to the conductor-sections of the line. f is abattery for the indicator, having feedingconductor f which passes to all the safety devices on the line, and from each of these devices is a separate return-wire, f, for the individual call or drop plate in the indicator box.

In the drawings, more plainly shown in Fig. 2, I have illustrated an open circuit, f*, between the battery feed-wire f and the returnwires f the terminals f of which are in the line of movement of a movable lever or part, 9, of the safety devices, so that when an excess of current causes any one safety device to act. to cut a conductor-section, c, to which it is applied, out of the line-circuit the movable lever y will be moved by its retracting-spring to contact with the electrodes or terminals f to complete the battery-circuit through the individual call in the indicator-box for the cutout section, and thus locate it to the attendant at the working station.

Instead of fixed contact-pointsf a springcontact may be used, as shown in Fig. 3, to complete circuit to wire f of box F.

In the drawings I have shown the form of safety device having two pivoted right-angle levers, g g, having retracting-springs'g g and armature g for magnet 9 and contact-plate g, with circuit-connections, as fully described and shown in my aforesaid application; butI do not limit myself to any particular form of safety devices, as a fusible flexible strip safety device of the well-known form or other constructions of the same may be employed; nor do I limit myself to the manner shown and described of making circuit through the indicator-battery when the safety devices act to cut out a conductor-section, as it is obvious that such circuit maybe made or interrupted to sound the alarm in various ways without departing from the spirit of my invention. Again, while I have described the indicator applied to railways having sectional line-conductors, I do not limit myself thereto, as the indicator may be used in connection with any of the now known constructions of line-conductors for locating faulty insulation or defects in the line.

I have shown some of the many forms of safety devices that may be used in Figs. 4., 5, and 6 of the drawings.

In Fig. 4 the fusible strip safety device is illustrated both for sectional line-conductor and for the indicator-box. In this case the current passes from C to binding-post d, fusible strip d, and binding-post d" to section 0 of line-conductor 0. Strip d is of such thickness that it melts on the passage of a current exceeding a certain fixed limit. Below this strip 01 is another strip, (i of fusible material, fixed between binding-posts d d and very close to but not touching strip (1. Strip 01 is in circuit with battery and indicator-box wires f f, as shown. le s soon as strip d melts, through a too heavy current passing to section 0, the strip (1 is fused by the spark, interrupting the current of battery f to allow the number in the indicator-box for said section to fall down.

In the form shown in Fig. 5 the current for the section passes from 0 around the magnet g in and to its armature support or lever g to a contact-pin, g, and thence to section a. The lever g is held in contact with pin 9 by a spring, g. At the outer end of lever g is an insulated metal pin or plate, 8, having connection s with battery-wire f and below which is a flexible contact strip or point, 8,

in circuit with indicator-box wire J. The contact-strip s is normally away from leverstrips when the desired or normal current is passing to section 0. In line with the end movement of strip sis a spring-catch, 8 If the current passing to section 0 is not in excess of that desired, the parts of the safety device assume the position shown. If, however, the current exceeds this limit, the attraction of magnet g exceeds the force of spring 9 and its armature is attracted to move lever g downwardly. The metal strip 8 then snaps into catch 8 and is held there until manually released, the current through contact is broken and the contact between strip 8 and point 3 is made to complete the battery-circuit through the indicator-box for the drop or signal of section a.

In Fig. 6 the battery f and its wire f is dispensed with, and a single fusible strip, (1, is used between section a and its feedingwire 0. In this case the indicator-box F is in a shunt of high resistance from the dynamo E, and if the current to section a is interrupted by the fusing of strip (1 the current through its drop or signal in the indicatorbox is also interrupted. When the indicator box is so located, either the fusible strip or magneto safety devices, as shown, may be used.

What I claim is-= 1. An electric line-circuit having disconnected or insulated sections of wire or circuit, safety devices with feeding-conductors for said sections, in combination with an indicator-box having an individual call or indicator for each said section, and circuit-connections between the safety devices and indicator-box, substantially as set forth.

2. A line-circuit having safety devices for different points along the same, separate feeding conductor or conductors for the safety devices, in combination with an indicator, and circuit-connections between the indicator and safety devices, substantially as set forth.

3. An electric railway having a 1ine-circuit, disconnected or insulated sections in said circuit, safety devices with feeding-conductors for said sections, and connection between the safety devices and an indicator-box, substantially as and for the purpose set forth.

4. A line-conductor having a section provided with safety device having a feedingconductor, which device acts by excess of current to out said section out of the line-conductor, in combination with an indicator attachment which is operated by the safety device simultaneously with the cutting of the section out of the line-conductor, substantially as set forth.

5. In combination with an insulated section or point of a line-circuit, a safety device having a feeding-conductor, circuit-connec tions, and an indicator, and operating by excess of current passing through it to simultaneously out said section out of the line-circuit and produce an automatic operation of through the safety devices to indicator-box, the indicator for denoting that the section is substantially as and for the purpose set forth. [0 cut out of the line of circuit, as set forth. In testimony whereof Iaffix my signature in 6. In an electric railway, a line-conductor presence of two witnesses. 5 divided into sections, current safety devices WILLIAM M. SOHLESINGER.

for said sections, and feeding-conductor for the Witnesses: safety devices in combination with an indi- S. J. VAN STAVOREN, cator box or alarm, and circuit-connection CHAS. F. VAN HORN.

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