US489573A - Siemens - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. S

G. W. Von SIEMENS. GONDUCTOR SYSTEM FOR ELECTRIC RAILWAYS.

No. 489,573. Patented Jan. 10, 1893. j" .1,

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(No Model.) 2 Sheets-Sheet 2.

Gr. W. von SEMENS.

GONDUGTOE SYSTEM EOE ELECTRIC EAILWAYS.

No 489,573. Patented Jan. 1o, 189s.`

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AU RNE Y Amant @triest GEORG WILHELM VON SIEMENS, OF BERLIN, GERMANY, ASSIGNOR TO SIEMENS da HALSKE, OF SAME PLACE.

CONDUCTOR SYSTEM FOR ELECTRIC RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 489,573, dated January 10, 1893.

y Application tiled February S, 1892 Serial No. 420,222. (No model.)

To @ZZ whom t may concern:

Be it known that I, GEORG WILHELM v oN SIEMENS, a subject of the King of Prussia, residing at the city of Berlin, Prussia, Germany, have invented certain new and 'useful Improvements in Devices for Supplying Current to Electrically-Operated Vehicles; and I do hereby 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.

This invention consists in means for supplying the electro-motive current to moving railway cars through an insulated conductor removed from the trackway, or otherwise situated, in a manner such as to promote perfect insulation of such main conductor, and avoid llosses which are otherwise liable to result,

owin g to proximity to the ground when traveling contact is made with such conductor.

Referring to the accompanying drawings, in which similar letters and numerals of reference indicate corresponding parts throughout: Figure l, is a longitudinal Vertical section through the road bed of a railway and illustrating my invention; Fig. 2, a cross section of Fig. l; Fig. 3, a diagram of the apparatus illustrating one form of construction; and Fig. 4, a diagram illustrating a modification.

K is the main insulated conductor or feeder removed from the trackway.

t', t2, t3, &c., are sectional contact making conductors constituting one rail of the railway, or independently disposed.

'r represents the other rail which is utilized as a return current conductor.

a represents the motor on the car.

P', P2, represent a double traveling contact making device upon the car connected to one pole of the motor, and adapted to promote continuous electrical connection by closing a circuit through one section t', before it is broken upon another. The single traveling contact P3, connected to the opposite pole of the motor, forms continuous connection with the return current rail r. t

The traveling contacts of one car are represented at R, in Fig. 3, and those of another car at R.

W represents an electro magnet upon the car traveling in proximity to the sectional rail t', t2, t3, &c. At the rail joints of the sectional rail t, t2, t3, suitable insulations are interposed, and on the under side of the sections adjacent to the insulations, central pieces are located, into contact with which, the armatures m,m2, m3, ne., are attracted successively by the car magnet NV, to close circuit through Wires 2, 4.

The apparatuses A', A2, A3, &;c., embedded in the roadway or located in a suitable sul)- way are adapted to electrically connect and disconnect the main line K, with each sectional contact rail t', t2, t3,in succession as the car progresses.

Referring to the apparatus A2, for instance, the electro-magnet E2 is included in the shunt circuit 2, controlled by the armature m. When the electro-magnet E2, is induced, the armature ,e2 is attracted and closes circuit through 3 and 5. The latch armature h2 locks the armature z2, and maintains the electrical connection with the rail section t2, until the magnet XV of the car arrives opposite the next armature m2, and closes circuit through the next rail section t3. A shunt circuit is closed by the armature m2 through branch 4 of the apparatus A2, including magnet F2, which withdraws `the latch armature h2, releasing the contact armature e2, breaking circuit through 3 and 5 pertaining to rail t2. The same operation is repeated for each apparatus.

- The springs t', g, retract the respective armatures z2, h2, when their magnets'are cut out of circuit.

Fig. 3, illustrates the posit-ion of the parts at the period when the car is passing from section t to section t2. The current is led from wire K to the coils of the magnet F and retracts the spring armature 7L of the latter to permit spring to withdraw armature e" and rupture current connection with the section t. The current continues from coils of magnet E along wire 4, armature m', and cross wire to return conductor r. Current is likewise supplied from conductor K to wire 3, and passes to wire 2 including coils of magnet E2 to magnet m and cross wire to return conductor fr the completion of this last inen- IOO tioned circuit energizing the magnet E2 to move the armature z2, and establish circuit connection between section t2, and conductor K.

In the modification Fig. 4, the diagram illustrates a double track arrangement in which the cars move along the respective tracks in opposite directions at the same time. In said arrangement, two armatures m', m', rbc. are located at each joint ot' the sectional rail t', t2, t3, dsc. each armature individually controlling a shunt circuit including the circuit closing and locking magnets. Assuming a car passes from the section t to section t2, the armature m', represented in the background will be attracted to effect the following:-a circuit will be established from the supply conductor K through wires 3, 2, magnet E2 operated armature m', and cross wire to return current rail r, thus energizing the magnet E2 attracting armature z2 to directly connect the section t2, with the main supply conductor K. Coincidently a circuit is established from the conductor K, through wire 3 of preceding section t', magnet F wire 4 operated armature m' and cross wire to return current rail fr, thereby exciting said magnet F, to attract its armature h', against the action of its spring g and thereby unlock circuit closing armature a', to enable its spring i, to retract the same and rupture the circuit connection of section t', with the main supply conductor. Then a car moves in the opposite direction on the parallel track and passes say from section t5, to section t4, the armature m4, represented in the foreground will be attracted to elect the following:-a circuit through wires 3, 2, of section 154, magnet E4, Wire 5 operated armature m4, and cross wire to return current rail r, thus attracting circuit closing armature 25, and placing section t4, in direct connection with the main supply conductor. Coincidently a circuit is established leading from main supply conductor K, through wire 3, of section t5, through the coils of magnet F5 wire 6, and operated armature m4 to return rail fr, exciting magnet F5 and retracting the locking armature h5, to release armature .e5 and interrupt the current connection of section #with the main supply conductor.

l. In an electric railway, the combination with a contact conductor composed of a series of relatively insulated sections, a supply conductor, normally interrupted connections between the supply and contact conductors, an electro-magnetic device for each contact section, and armatures adapted to be successively operated by a magnetic device on the vehicle, to close the circuit through said magnetic devices, to complete the interrupted supply connection of the section into which the vehicle is moving, and interrupt the corresponding connection of the preceding section.

2. In an electric railway, the combination with a contact conductor composed of a series of relatively insulated sections, a supply conductor, normally interrupted connections between the supply and contact conductors, an electro-magnetic device for each section, comprising electro-magnetic circuit completing and locking means, and a series of armatures adapted to be operated by an electro-magnetic device on the car to operate the circuit closing device of one section, and release the lock of the preceding section.

3. In an electric railway, the combination with a contact conductor composed of a series of relatively insulated sections, a main supply conductor, normally interrupted connections between the supply and contact conductors, a device for each section comprising magnets having spring retracted circuit clos ing and locking armatures, and a series of armaturesmz, &c., adapted to be actuated by an electro-magnetic device on the car to operate the circuit closing magnet of one section, and the retracting magnet of the locking armature of the adjoining section, substantially as described.

4. In a system of electrical distribution for railways, the combination of a continuousmain insulated conductor, a contact making conductor composed of a series of sections insulated from one another, a series of electromagnetically controlled contacts for electrically connecting and disconnecting the said main conductor with the respective sections of the sectional conductor, normally open shunt circuits including the magnets of said contacts, magnetically controlled contacts for making and breaking said shunt circuits, and a magnet traveling with the car adapted to operate said contacts of the shunt circuits in the manner and for the purpose described.

5. In a system of electrical distribution for railways, the combination of a continuous main insulated conductor, a contact making conductor composed ot` a series of sections insulated from one another, a series of electromagnetically controlled contacts for electrically connecting and disconnecting the said main conductor with the respective sections of the sectional conductor, normally open shunt circuits including the magnets of said contacts, magnetically controlled contacts for making and breaking said shunt circuits, lock armatures for retaining the contacts of said shunt circuits, electro-magnets for releasing said lock armatures, and second normally open shunt circuits including said releasing mag-- nets controlled by the contacts of the tirst shunt circuits in the order described, whereby the closure of circuit through one of the sections of the sectional conductor is released simultaneously with the closure of circuit through a succeeding section.

In testimony whereof I have aiiixedmysignature in presence of two witnesses.

GEORG WILHELM VON SIEMENS.

Witnesses:

W. HAUPT, MAX WAGNER.

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