US1110490A

US1110490A - Electric-lighting system.

Info

Publication number: US1110490A
Application number: US77738813A
Authority: US
Inventors: Leroy R Jewett
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-07-05
Filing date: 1913-07-05
Publication date: 1914-09-15
Anticipated expiration: 1931-09-15

Description

L; R, JB-W-BTT, ELEOTRIGLIGHTING SYSTEM. APPLICATION IILED JULY 5, 19 13 Pgteptgd Sept. 15, 1914 mums-SHEET 1. v

following is a specification.

Fig. 3

i

2 and 3, 10 represents trolling the electric LEROY R; J'IEPW'lEl'JPllI, OF LYNN, MASSACHUSETTS.

ELECTRIC-LIGHTING SYSTEM.

i Specification of Letters Patent.

Patented Sept. 15, 1914.

Application filed July 5, 1913. Serial No. 777,388.

To all whom it may concern: 1 Be it known that I, LEROY It. Jnwn'rnof Lynn, in. the county of Essex and State of Massachusetts, have inventeda new and useful Electric-Lighting System, of whicln the My invention relates to the use of electricity for lighting gas by which term I mean any suitable combustible material such as the ordinary gas as well as gasolene or other suitable combustible 'material.

invention resides chiefly in providing a valve which is moved beyond full open position in order to light the gas the valve being returned to full open position for normal use, thus making sure that there will be suflicient gas-to time avoiding the necessity of making the circuit when the gas is shut oif.

A feature of my invention consists inconcircuit entirely by the gas valve and other features will" be pointed out below.

In the drawings: Figure 1 is a plan view of a gas stove embodying my invention; Fig. 2 is a section on line 2-2 of Fig. 1 is a diagrammatic view showing the electrical connections; Fig. showing a modification of the gas regulating device; Figs. 5 and 6 are modifications; and Figs. 7 and 8 are details hereinafter described.

Having reference particularly to Figs. 1, the top of a gas stove and 11 the three burners thereof which are connected by branch pipes 12 with the usual .main gas supply pipe 13. The supply me 13 is supported by brackets 14 fastened to top 10-while each branch 12 is made with a pair of upwardly projecting arms 15 fastened to the under side of top 10. Each branch 12 is also made with a valve chamber 16 within which is mounted a valve 17 that is provided with a stem 18 and handle 191. Each valve stem 18 is provided with a radially projecting pin 19 codperating with a flexible spring contact 20 and a rigid abutment or stop contact 21, said

contacts

20 and 21, being secured to a depending block 22 of insulating material fastened in any suitable manner to. the stove top 10. -The outer face of contact 20 has a plate 23 of insulating material secured to it against which in 19 strikes when valve 17 is rotated so be lighted and at the same.

4 is a detail.

i Through each block 22 extends one end 10f an electrode 24: whose outer end projects slightly beyond the outer face of block 22 land occupies a position in the path of the }free end of contact 20. From block'20 the ielectrode 2 1 extends inward througha supiport 25 consisting of a block of insulating imaterial strapped to branch 12, and the {,mner end of said electrodeis bent downbut'out of contact with the latter so as to Eleave a spark gap between the two.

I To the rear side of top 10 is secured a ,block 26 of insulating material upon which are mounted three

binding posts

27, 28 and @29, the binding post 27 being connected in -multiple with stop contacts 21 by wires 30 as shown in Fig. 3 and the binding post 28 being connected in multiple with the spring contacts 20 by wires 31.

The binding post 29 is grounded on top 10 through a conductor 32 and also connected-through wires 33 with the'ends of the two windings of an induction coil 34. The opposite end of the primary of coil 34 is connected by a wire 35 with one pole of a battery 36 whose opposite pole is connected by a wire 37 with binding post 27. The opposite end of'the secondary of coil 3 1 is connected by a wire 38 with binding post 28.

When the handles 191 of valves 17 are at right angles with the branches 12 the gas is completely shut oif from branches 12 and burners 11 but when either of said handles .is swung outward ninety degrees into the position indicated, for example, at m, Fig. 1, then the valve 17 connected therewith is fully open. These features of valve operation are common with valves of thistype ther description. Heretofore, however, it has been the practice to provide stops to limit the opening and closingmovements of the valve to just ninety degrees. In accordance with the present invention, however, I have substituted the stop contacts 21 for the stops heretofore provided to limit the opening movement of the valve and each of these stop contacts 21 is positioned relatively to its valve so as to allow the latter more movement .than is necessary to open the valve with the result that when handle 19 is swung from its fully closed position to the limitpermitted by stop contact 21, its valve 17 is first fully opened as its handle reaches the @ward into close proximity to the burner 11 and will be readily understood without furv position a? and then partially closed as its not only are both the primary and secondary closed at 1921 andj2024, respectively, 1

through the operation of a single control member 19, but these two circuits are closed simultaneously thereby causing a spark to be produced at the gap in the secondary C11- cuit which exists between the end of electrode 24 and its burner 11.

The wires connecting binding osts27 and 28 with

contacts

20 and 21 may e mounted upon the under side of top 10 and protected from heat in any suitable manner.

In Fig. 4 I have shown a modification wherein only one contact, 21, is used. In this case two inwardly projecting posts 39 and 40 are mounted on block 22 and the inner ends of these posts are connected by a wireor filament 41 of platinum or the like which is supported immediately ab ve one or more of'the outlet openings of the burner 11. The post 40 and valve 17 are connected by

wires

42 and 43 with a source of electrical supply. When valve 17 of Fig. 4 is swung from its closed position it is moved beyond its, fully open position and partially closed before its pin 19 engages the stop contact 44.

When pin 19 engages sto contact 44 a circuit is completed throug filament 41 and the latter is made incandescent and acts to ignite the gas escaping from the burner.

, In Fig. 5 one end of the secondary winding of the induction coil 34 is connected to a switch arm 45 by a wire 46 and this switch arm is adapted to be moved over a series of contact points 47 that are connected by wires 48 with the electrodes 24 mounted on but 1' insulated from the stove frame. The other end of the secondary winding is grounded on the stove frame 10 through a connection 49. One end of the primary is connected by a wire 50 with one pole of a battery 51 whose opposite pole is connected through wires 52 with contacts 2O mounted on but insulated from the stove frame. The contacts 20 co6perate with fixed contacts 2f) mounted on and electrically connected with stove body 10. The other end ofthe primary" of coil 34 is grounded on stove body 10.

through a wire 53 and wire 49 so that when either contact 20 is closed the primary of coil 34 is completed through contacts 2O" and 20 and the stove body 10. When it is de- .throttled then' the operator swings the valve into its the arm 45 is placed on the point correspond ing to that particular burner to close the secondary thereof, and the handle 19 of the proper valve is turned to admit gas to the burner and close the rimary. The current induced in the secon ary winding causes a sparkto be produced between electrodes 24* and the burner which ignites the partially gas escaping from the burner, and

fullyopen position which not only gives a full supply of gas but also opens the primary at 20Q0. I

By lighting the gas while it is partially throttled as described instead of while being supplied full force as heretofore, ex-

plosions are prevented. As will be clear, the

gas canbe shut off t any time without again operating the circuits.

'In the diagrammatic view, Fig. 6, I have shown a construction for use with the ordinary electric light current which is usually an alternating current of 110 volts. In this form I use a step down transformer 51 which may induce the current. v

In the detail views of Figs. 7 and'8, Fig. 8 being a section on line 8-8 of Fig. 7 valve 17 at its lower end is provided with a downwardly extending threaded stud 54 on which is mounted a washer 55 made with alaterally extending finger 55. This washer is keyed to stud 54 by a pin 58 so that the valve and washer turn together while a nut 56 on stud 54 holdswasher 55 in place and valve 17 within its chamber. Onthe under side of supply pipe 13 is fastened a plurality of leaf springs 57 one for each valve 17 and the free end of each spring.57 occupies a position in the path of the finger' 55 of one of the washers 55. When either of the valves 17 occupies its closed position its finger 55 is angularly separated from its spring 57. a

so that when the operator merely releases handle 191 of valve 17 the spring 57 acting through finger 55 automatically shifts the valve backward but only far enough tocarry it into its fully open position.

What I claim is:

1. An electric lighting system for gas comprising a burner; an electrical circuit to convey electricity in adjacency to said burner to light the gas; and a valve to controlthe flow of gas to said burner, which valve, whenmoved beyond the full open position for the flow of gas to said burner,

.makes said circuit.

2. An, electric lighting system for gas comprising a burner; an electrical circuit including an induction coil for conveying electricity in adjacency to said burner to light the gas; and a valve to control the flow of gas to said burner, which valve, when i I moved beyond the full open position for the flow of gas to-said burner, makes the circuit through the primary of'said coil and also .makes'the circuitthrough the secondary of said coil. 4

3. An electric lighting system for gas comprisinga burner; an electrical .circuit including an induction coil for conveying electricity in adjacency vto said burner to light the gas; 'and a valve to control the flow of gas to said burner, which valve, when moved beyond the full open position for the flow of gas to said burner, makes the circuit through theprim'ary of said coil and also I makes the circuit through the secondary of said coil, one terminal acting as a stop to limit the movement of said valve in one direction. Y

4. An electriclighting system for gas comprising a burner; "an electrical circuit to convey electricity in adjacency to said burner to light the gas; a valve to control the flowpf gas to said burner, which valve, when moved beyond the full open position for the flow of gas to said burner, makes said circuit; and automatic means to return said valve to full open position.

5. An' electric lighting system for gas comprisinga burner; an electrical circuit to convey electricity in adjacency to said burner to light the as; a valve to control the flow of gas to sald burner, which valve, when moved beyond the full-open position for the flow of gas to said burner, makes;

said circuit; and a spring to return said valve to full operi position.-

6. An electric lighting system for gas comprising a burner; an' electrical circuit including aninduction coil for conveying electricity in adjacency to said burner tolight the gas; and a valve to control the flow of gas to said burner, which valve, when moved beyond the full' open position for the flow of gas to said burner, makes the circuit through theprimary of said coil and also .simultaneously makes the circuit through the secondary of said coils 7. An electric lighting system I for gas comprising a burner; an electrlcal clrcuit including an inductlon coil forfconfveyi'ng electricity in adjacency to said burner to "the bridging member of saidcircuit.

light the gas; a valve to control the flow of gas to said burner, which valve, when moved beyond the full open positionfor the flow of gas to said burner, makes the circuit through the primary of said coil and also simultaneously makes the circuit through the secondary of said coil, one terminal acting as a stop to limitthe movement of said valve in one direction; and a spring to return the valve to full open position.

8. An electric lighting system for gas comprising a stove;- a burner mounted on the stove; an electrical circuit in which is included a portion of said stove to convey electricity in adjacency to said burner to light the gas; and a valve mounted on the stove to control the flow of gas to said burner, which valve, when beyond the full open position for the flow of gas to said burner, makes said circuit.

9. An electric lighting system for gas comprising a burner; an electrical circuit to convey electricity in adjacency to said burnerto light the gas; and a valve to control the flow of gas'to said burner, which induction coil and including said stove for conveying electricity in adjacency to said burnerto light the gas; and a valve to con-.

trol the flow of gas to said burner; which valve, when moved beyond'the full open positi'onffor the flow. of gas, to said burner,

maiiesth'e circuit through the primary of saidcoil' and. also makes the circuit through the'seoondary of said coil,"said {valve being the'bri-dgin'g member of the primary of said 7 Eiior R.--JEWETT.

Witnesses: v i I GEORGEA'. ROCKWELL, ALExANpnR L. PELKEY.