US567657A - Railway-gate - Google Patents

Description

' (No Model.)

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z RAILWAY GATE.

Patented Sept. 15, 1896.

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UNITED STATES PATENT OFFICE.

IVILLIAM G. ROOME, OF JERSEY CITY, NET JERSEY;

RAILWAY-GATE.

SPECIFICATION forming part of Letters Patent No. 567,657, dated September 15, 1896. Application filed November 17, 1893. Serial No. 491,256. (No model.)

To all whom, t may concern,.-

Be it known that I, l/VILLIAM G. RooME, of the city of Jersey City, in the Vcounty of Hudson and State of New Jersey, have inventeda certain new and useful Improvement in Railway-Gates, of which the following is a specification.

The construction which forms the subjectl matter of this application is specially adapted for use in connection with such a construction as is shown in Patent No. 558,565, granted to me April 21, 1896. y

I will describe my improvement in detail, and then point out the novel features in the claims.

In the accompanying drawings, Figure lis a diagrammatic View of a portion of a railway track and appurtenances embodying my improvement. Fig. 2 is a diagrammatic view illustrating other modified means for operating my improvement. Fig. 3 illustrates other modified means for operating my improvement.

Similar letters of reference designate corresponding parts in all the figures.

Referring first to Fig. l, A designates a railway-track of ordinary oranysuitable construction. It may be regarded as one of the tracks of a double-track railroad on which trains may travel in the direction indicated by the arrow w. Y

B designates an arbitrary representation of a dynamo-electric machine. The machine I use may be of any desired type. This dynamois intended to supply current for certain gates or signaling devices employed in the system. l

The track A comprises a number of sections a a2. The section a may be regarded as a section extending from a depot or station. The rails comprised in each track-section are intended to be made electrically continuous. This maybe done by means of fishplates, chairs, or other devices made of metal and electrically connecting the ends of abutting rail-sections; A simple way of connecting adjacent rail-sections comprised in the track-section is to fasten the ends of a wire between each pair of adjacent rail-sections. The rails comprised in each track-section are, in this example of my invention, electrically independent of those comprised in every other track-section. Their electrical independence may be secured by employing chairs or ish-plates of insulating material, such as wood, between the rails comprised'in one track-section and those comprised in each adjacent track-section. y

' In this example of my improvement I use what may be regarded as a main circuit comprisin g all the signals and protecting devices, and I also use a track circuit or circuits. In each track-circuit the rails of one of the track-sections is comprised.

I will first describe the main'eircuit and its appurtenances. C designates a wire leading from one pole oreleetrode of the dynamoelectric machine B to the ground. As here shown it is represented as connecting with a ground-plate G. C2 designates another wire extending :from the other pole or electrode of the dynamo-electric machine. This Wire extends to a point where the main circuit branches, one branch C3 `extending to one terminal or contact point of a resistance device E and the other branch C extending to one end of the coil of an electromagnets' belonging to a cautionary signal S.

From the other end of the coil of the electromagnet s a wire C7 extends to one end of the coil of an clectromagnet S2 belonging to a danger-signal S2. From the other end of the coil ot this magnet a wire C8 extends to a contact-piece t" belonging to the circuitchanger II', here shown as consisting of alever fulcrumed at one end to a pin 7L' and having at the other end a contact-piece which is adapted tocoact with the contact-pieces z" i2.

Freni the circuit-changer H a Wire C0 eX- tends and connects with the wire C4, extending from the resistance device E.

The resistance device E in that branch of the main circuit comprising the Wires C3 C*L is employed to make this circuit branch approximately correspond in resistance with the other branch of the main circuit comprising the Wires CG C7 CSC, and comprising the coils of the magnets s' s2 belonging to the signals S S2 and the circuit-changer H.

The main-circuit wire C4 extends to one extremity of one of the coils of a transformer K. This transformer may be of any suitable construction comprising low and high potential coils. If a direct-current dynamo be used, a dynamotor (sometimes called a motor-dynamo) or direct-current transformer would be preferable. In other cases the ordinary alternating-current transformer or any other kind would suffice. This transformer K is employed to furnish current of low potential to the track-circuit, comprising the rails of the track-section cl2, the wire C4 being connected with one extremity of the high-potential coil of the transformer. From the other extremity of the high-potential coil of the transformer a wire C5 extends to the ground, represented here by a ground-plate G2.

From the extremities of the low-potential coil of this transformer wires are extended to the ends of the rails comprised in the tracksection a2. From the ends of the rails at the other end of the section a2 Wires are connected with the magnet I' of the circuit-changer H', thus completing this track-circuit and energizing the magnet I when there is no train on the track-section a2.

When the magnet I' controlling the circuitchanger H' is denergized and the circuitchanger leaves the contact-piece il', it will in this example of my improvement impinge against the contact-piece i2 and establish another branch circuit comprising a wire C18 and a Wire C1. The wires C18 and C12 connect With the ends of the coils of an electromagnetic device M, which may consist of a solenoid or of an electromagnetic motor capable of producing even a greater movement. The wire C12 connects with the wire C5. The electromagnetic motor M is intended to operate a gate N, located at a crossing, to lower the gate. Normally the gate will be maintained by a weight u in an elevated position. It is understood that when any track-section is short-crcuited'out by the passage of a train, car, or locomotive over it the gate controlled by the circuit comprising that section will be lowered.

In Fig. 2 I have shown three different blocks or sections of track, each of which is operated independently of every other block or section. In the track-sections a a2 of the track A, I have shown signals connected with the gates, but as this is not necessary I show the section cl3 of the track A Without any signal in connection with the gate controlled by that section. It will also be noticed that each section of the track A has locally-independent circuits energized from transformers K' K2 K3 K4 K5 K2, these transformers being energized from the dynamo B, but in this example of my invention beingl connected with the dynamo B in multiple arc'. In its wiring each of the local circuits of the several tracksections a' c2 a2 of the track A is shown slightly different from the rest. I have done this simply to show different means of operating my gates.

The magnet, solenoid, or electromagnetic the gate N' being normally raised by a Weight u'. Vhen a train enters the track-section a', the magnet of the circuit-changer H is shunted out of circuit and the circuit-chan ger 7o is shifted by means of the spring J so as to impinge against the contact-piece 2 of this circuit-changer, energizing the magnet, solenoid, or electromagnetic motor M', raising the back part of the gate N', which is pivoted at 75 a point p', and raising the weight u' and lowering the front end of the gate over the crossing.

The Wires C15 C16 C17, circuit-changer H', contact-piece i', signal-magnet s', and the 8o ends of the coil of the transformer K which are not connected to the wires C3 CA1 form the normal local circuit for the track-section a', and the Wires C15 C18 C19 C17 form with the coil of the magnet M of the gate N' and contact- 85 piece 2, together with the same coil of the transformer as in the other local circuit, another circuit through the gate-magnet, lowering the same.

Coming now to the track-section c2, a trans- 9o former supplies energy fora local circuit in this track-section CL2 from 011e of its coils, the other coil being connected by wires C7 C2 to the wires C' C2. This is transformer K3 and from the terminals of the coil supplying energy to the local circuit wires C20 and C23 extend. The wire C20 leads to a circuitchanger H2, and from a contact-piece 3 the circuit is continued by Wire C21 to one end of the coil of an electromagnet s2 belonging to a 10o signal. From the other end of this coil awire C22 extends to the gate-magnet or electromagnetic motor M2 belonging to the gate N2. This gate has combined with it a weight and is pivoted at a point p2. From the other end 1o 5 of the coil of the magnet M2 the wire C22 returns the circuit to the transformer.

The gate N2, controlled by the second tracksection a2, is connected with its magnet M2 on the reverse side of the pivot p2 to that of the 11o gate N of track-section a'. The magnet of the gate N2 tends to hold the gate open and upon this magnet becoming denergized by its circuit being interrupted by the circuitchanger H2 the weight u2 will pull the gate 115 down and close it over the crossing.

The gate N' of the track-section c has its magnet connected to the reverse side of the pivot p to that of the gate N2, and here the magnet M' is normally out of circuit and the 12o gate is held open by the Weight a'. When the circuit-chan ger H' shifts its contact-piece from the normal position against the contactpiece i', so as to connect with the contactpiece t2, the magnet M' is energized, and by 125 lifting the back end of the gate lowers the other end across the crossing.

In the track-section a2 the gate N8 has two magnets combined with it, one for lowering and one for raising. The magnet M3 is nor` 13o mally in circuit through the Wires G26 C25 C24, contact-piece 4, and one of the coils of the transformer K5, the other coil of this transformer being connected to the Wires C' C2 by Wires O11 C12.

The magnet M8 tends to keep the gate N3 open. A magnet M4 is connected to the lower side of the gate and tends to close the same whenever the circuit-changer H3 shifts its contact from the contact-piece 4 to the contact-piece 5 through the Wires C27 C28.

The dynamo B has leading from it wires C' C2. From these wires the transformers K K2 K3 K1 K5 K6 are supplied with energy by means of the wires C3 and O4, C5 and C6, C7 and C8, C9 and, C10, C11 and C12, Cand C14, respectively.

The transformers K2, K4, and K6 are intended to energize the track-circuits d d2 d3, respectively. They are connected from their low-potential coils to their respective trackcircnits by Wires C29 C30 O31 C32 C83 G34, respectively, theother end of these track-circuits being connected to the coils of the circuitchangers H I-I2 H3, respectively.

Eig. 3 is similar to Fig. l, With the exception that the transformer K is dispensed With and a track-battery L takes its place and supplies the track-circuit ft2 with a low-potential current.

A resistance device E has been also added to compensate for the removal of the transformer K. This resistance device E should be proportioned so as to be as near the resistance of the magnet M of the signal N as possible.

That I claim as my invention, and desire to secure by Letters Patent, :is--

l. A common source of electrical energy supplying powerto a number of sections of a block system, a gate operated from said com mon source, a transformer .energized by power from the common source, and a track circuit or circuits comprised in the low-potential circuit of said transformer and serving to control the operation of the gate, substan tially as specified.

2. A common source of electrical energy supplying power to a number of sections of a block system, a gate operated from said common source, a transformer energized by a power from the common source and serving to control the operation of the gate, and a track circuit or circuits governing the action of the transformer, substantially as specified.

3. In a block system the combination of a number of sections, a common source of power, one or more transformers for the sections energized from the common source of power, a track-circuitcomprising the rails of a section included in the low-potential circuit of the transformer and a gate operated from Y the common source of power and controlled in its operation by a track-circuit, substantially as specified.

1. In 'a block system comprising a series of gates and a series of signals, the combination of a number of sections, a common source of power, one or more transformers for the sections energized from the common source of power, a track-circuit comprising the rails of a section included in the low-potential circuit of the transformer, said series of gates and signals being operated from the common source of power and controlled in their operation by a trackcircuit, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM G. ROOME.

Witnesses:

ANTHONY GREF, WILLIAM M. ILIFF.

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