USRE9743E - Electrical apparatus for lighting street-lam ps - Google Patents

Description

I a sheets-Sheet 1'. JJP. TIR'RELL; V Assignor, by mesne assignments, to Fmxmn ELFGTRIG GAS Lmn'rim 00. Electrical Apparatus for Lighting Street Lamps, &0. No. 9,743. i Reissued June 7, i881.

J P. TIRRELL, Awgnor, by mesne assignments, to Fmxmn Emo'mtu GAS meme 00; Electrical Apparatus for Lighting Street Lampe, 8w. Reissued June 7,18l.

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' UNITED STATES PATENT OFFICE.

JACOB P. TIRRELL, or WEST- SOMERVIILE, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO FRANKLIN ELECTRIC GAS LIGHTING COMPANY, ornosrolv,

MASSACHUSETTS.

ELECTRICAL APPARATUS FOR LIGHTING STREET-LAM PS, 800.-

SPECIIEIGA'I'ION forming part of Reissued Letters Patent No. 9,743, dated'June 7, 1881.

Original No. 130,110, dated August 20, 1832.

T 0. whom it may concern:

' Be it known that l, JAeoB P..TIRREL11, a 1

citizen of the United States, residing in West Somerville, in the county of Middlesex and 5 State of Massachusetts, have invented certain new and useful Improvements in Electrical Apparatus for Lighting Street-Lamps, &e., and I do hereby declare that thefollowing is a full, clear, and exact description of. the same,-

[0 reference being had to the accom pan y i ng plates of drawings.

This invention relates to that class of elec-I trical apparatus for lighting streetlainps in i which the current is successively thrown into the magnet at eachburner one after another;

and under this invention the circuit-breaker is located at the burner, and, by the direct action .of the current through the magnet located at the burner, the circuit-breaker and the valve to let on or turn oil the gas-are both operated, and the current, after the opening or closing, as the case may be, of the valve to one burner, is completely cut'ofl" from the magnet ofsnch burner and thrown into the magnet ofnextburner, and so on.

In the accompanying plates of drawings the present invention is illustrated.

In Plates 1 and 2, Figures 1 and 2 are elevations from different sides. In Plate 3, Fig. 3 is a partial plan view and horizontal section;

Figs.4 and 5, detailed views.

A in the drawings represents a'gas-burner, to which Bis the feed-pipe provided with-two horizontal platforms, 0 and D, for carrying the apparatus of this invention; E, a U-magnet, horizontally located and secured on the lower platform, the legs F of the magnet; G, the armature, properly located with regard to the magnet E 40 and secured to the lower end of an upright lever, H, turning upon a fulcrum at I of the feed-pipe B; J, the circuit-breaker, secured to the upper end of ,the lever Hand projecting upward to the plane of the escape of the gas K, a post in'upper platform,

D, and in electrical connection with the earth. At the upper end of the post K is a horizontal platinum arm, b, against which rests the point a of the circuit-breaker J when thelever O, with the pipe B in and between Application for reissuefiled February 21.1881.

l H is at rest; L, a Spiral spring applied tolev er H, to throw back the armature G from the magnet E; 0, an upright arm. This arm 0, at its lower end, is hung upon a fulcrum, d, of an insulator-block, c, on platform O,and at its upper end it is in a position to bear against the periphery of a sector-wheel, f, fixed to the spindle g of valve in gas-pipe B; O, a bent Spring applied to-arm O to hold it against thesector-wheelf,and,when escaping fromtbe periphery thereof, to swing it on its fulcrum. The arm 0 at P, between its two ends, is insulated.

from lower end of arm 0, This finger-piece h, at its outerend, lies in a posit-ion between the two pins Z and m, projecting horizontally one 1, extends wholly through the block 0, and similarly projects therefrom from its otherside, being there lettered as I. The'upper pin, m, only. enters the block; but on the opposite side of the block thereto a similar pin, on, is located, also only entering the block.

Q is an arm similarly constructed, arranged, and hung on the block e to the arm 0. This arm Q is'in position to cry of a sector-wheel, n, fixed to the gas-valve spindle g, and for. its finger-piece h to lie in and between the projecting pins l and m of the block 6. The sector-whcelnis back of the sector-wheel f. The two sector-wheelszf and n are of equal'diameter, arc-that is, a half of a circle. The two together complete the circumference. The relative location of the sector-wheels f and n on the valvespindle is such that with the arm 0 on the peripheryof the sector-wheel f the arm Q will be 011 the periphery of its sector-wheel n, and vice versa, and the purpose of the said sector-wheels isto turn their respective arms 0 Q, so as to bring about a bearing between their respective finger-pieces h h and the lower pins, 11', and also to'allow the springs applied :to the said arms 0 Q to react and bring their finger-pieces into con act with the upper pins, m m. v

R is a ratchet-wheel secured to gas-valve spindle back of inner sector-wheel, n,- and S a h is a finger-piece projecting horizontally above the otherfron 'the block e. The lower bear upon the p'erip'hof an equal length of 2'. g am D 5 ratchet-wheel,a friction-wheel and clutch may' be employed, such as shown in Fig. 5.

M and N are wires leading from the electric battery employed. The wire M is to let on, and the wire N to shut ofi,the gas at the burner to A. The currentis thrown into the one or the other of said wires by means of a. double switch, such as is employed ordinarily in elec} trical gas-lighting apparatus, and therefore needs no particular description herein. The wire M connects with the arm 0, and the wire N with the arm Q. I i

T is a wire connecting lowerpin, l, with magnet E, and (la wire connecting magnet with circuit-breaker J." l V and \V are Wires respectively connected with upper pins, on and m, from which they are to lead to the next burner, and to such burner become the letting-on and turning-oh wires, as the-wires M and N to the burner, A. The position of the several parts composing the mechanism hereinabove described is at all times, if at rest, substantially that shown in Fig. 1, Plate 1, and onlydifl'ers therefrom in any condition of restfiu the relative positions of the two arms 0 Q, according as one or the other isbearing'on its respective sector-wheel, f or n. By theshown positions of the two arms 0 and Q the finger-piece h of' the arm 0 is 7 against the lower pin, 1, and the finger-piece 5 h? of arm Q against the upper pin, m, of block e. This relative contact-with the pins Z Z m m 'ofthe' finger-pieces to the two arms is always maintained, they never being both at the same time in contact with the lower pins, Z Z,

140 or the upper pins, m m, but always the one with a lower pin and the other with an upper pin alternately. If, now, with the arms 0 and Q in the relative positions described and shown, a current of electricity be thrown into-the wire M (which, as stated, is the letting-on wire,') it is obvious it will pass into the magnet, (the connection being through arm 0, finger-piece h, pin 1, and wire T,) thence to. the circuitbreaker J; and then, as the circuit is complete,

. the armature G will bedrawn toward the mag:

net, turning its lever B on its fulcrum, which carries the circuit-breaker J beyond the end of the platinum arm b, breaking thereby the circuit andemittingan electric spark. This 5 breaking of the circuit destroys the attractive force of the magnet, and leaves the lever H to be'pulledbackward by the spring L, which backward movement of the lever completes the circuit by bringing the circuit breaker into contact withthe platinum armb, when another attraction of the armature G occurs, again breaking the circuit, emitting a spark, and so on, as before. By this alternate forward and backward movement of the lever H the mittently rotated, carrying with 'it the valve ratchet-wheel R on'gas-valve spindle is interspindle g and sector-wheels f n. I It this rotation of the valve spindle g be continued sufliciently, the periphery of the sector-wheel f will be carried beyond the arm 0, leaving it free for its spring to act upon it, and thus to throw its finger-piece h out of contact with the lower pin, Z, and into contact with the upper pin; m, and the periphery of the sectorwheel nwill be brought to bear-upon the arm Q, throwing its finger-piece it out of contact with, the upper pin, m, and into contact with the lower pin,-'Z. V

W'ith the movement of. the sector-wheel f beyond its arm Oand of the sector-wheel 1: onto its arm Q, as above described, results have been effected as follows: First, the gas-valve or stop-cock has been opened to its fullest extent, and as at each stroke of-the lever H caused by the successive attraction'ol' the armature the circuit was broken and a spark emitted, it is. obvious that the gas necessarilymust have been lighted; second, the current-of electricity through wire M is cut 011' from the magnet E and thrown into the wire V leading to the magnet of the next burnergand which, as before stated, is the letting-on wire to such burner; third, a connection has beenestablished between the-magnet E and the shutting-off wire N, so that when desired to shut off the gas from the burner A the operator has only to makethe necessary connection between battery and shutting'ofl' wire. The connection between the" shutting-0E wire N and the magnet is through arm Q, its finger-piece h, pin Z, and wire T.

In shutting off the gas at the burner the operation of the parts is precisely similar to the letting on of the gas, and therefore needs no, particular descri'ption;= and on its completion the arm Q escapes from its sector-wheel n, and the arm 0 passes onto its sectorwh-eelflre-establishing the connection between letting-on wire and magnet, as before. Completing the shutting off of the gas at one burner throws the current into the wire Wleading from such IIO burner A to the next burner, which wire W to the said next burner is the shutting ofi' wire.

In Fig. 4 thevalve in gas-pipe is shown in r detail, and is such that in a half-turn of the spindleg the gas will'be let on, and, continuing Thelocation of the circuitbreaker at the gas-burner is such that as it breaksthe circuit by escaping from the platinum arm I) the spark emitted will be sufficiently near to the escap inggas to ignitethe same, and it is desirable that the movement to let on the gas should be so divided as to emit a suflicient number of;

sparks to insure the lighting of the gas.

- I do not claim turning onand off the gas by which currents of electricityare passed, an electromagnet electrically connected therewith and attracting an armaturewhich actuates mechanism, substantially. as described,for

5 automatically'turning on the gas and lighting the same by an electric spark at the tip of the gas-burner, and also for turningoff the gas to extinguish thelight,substantially as described.

2, In an apparatus for lighting gas by-elec- 1o tricity, the helix of an electromagnet connected at one end with the wire through which the current of electricity is passed, and at the other end with a circuit-breaker located at the gas-burner, so arranged that thevcurrent of :5 electricity is passed to the circuit-breaker through saidmagnet, attracting an armatureactuating mechanism operating automatically to turn on the gas and light the same by the effects of the primary sparks made at the tip 20 of the burner from said magnet in the circuit. 3. The arms 0 Q, sector-wheel f n,.pius Z I m m, wires M N, magnctE, lever H, carrying armature G, circuit-breaker J, and pawl S, and the ratchet-wheel, all combined and ar :5 ranged together and applied to 'a gas-burner for operation,substantially as and -for thepurv poses set forth. v

4. In an apparatus for lighting gas by'electricity, in combination with a circuit-breaker I 3o located at the gasburner, a lever adapted and arranged to open and close the stop-cock or mechanism for letting on the gas, an electro-. I

magnet electrically connected with said wire,

an armature operated by said elcctro-magnet, mechanism actuated by said armature, breaking the circuit at the burner-tip, and producing there an electric spark or sparks for lighting the gas, the whole operating automatically.

6. In an apparatus for lighting gas by electricity, the combination of two wires through which currents-of electricity are passed, actuating mechanism for both letting on and turning off the gas by substantially thesamc means, an electro-magnet electrically connected with said wires, an armature operated by said electrOTmagnet, mechanism actuated bysaid armature for breaking the circuit at the burner-tip, and producing there the spark or sparks for lighting the gas,the .whole operating automatically, substantially as described.

In witness whereof I have hereunto set my hand this 11th day of February, A; D., 1881.

JACOB P. TIRRELL.

In presence of A. B. HALL, CHAS. T. GAY.

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