US1295285A - Electric gas-lighter. - Google Patents

Description

R. F. DOWDY.

ELECTRIC GAS LIGHTER.

APPLICATION FILED MAR. 23. 1918.

1,295,285. Patented Feb.25,1919.

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' noke, in the'county of Roanoke and State" 1 U I ED STATES PATENT oration-.1]

"ROY F. DOWDY, OFlROALNOKE, VIRGINIA, ASSIGNOR TO SAFETY GAS LIGHTER-CORPO- RATION, or ROANOKE, VIRGINIA, A CORPORATION OF VIRGINIA.

ELECTRIC GAS-LIGHTER.

To all whom it may concern:

Be it known that I, :ROY F. Downy, a.c1t1 zen of the United. States, reslding at Roaof Virginia, have invented certain new and useful Improvements in Electric (Eras-Lighters, of which the following is a specification.

This invention relates to electric gas light- 1 ers and the general object thereof 1s to p rovide improvements in devices-for igniting gas at gas burners or the like by means of a v spark derived from an ordinary house-light- With' this general and other ing circuit.

. specific objects in view the invention consists particularly claimed.

of the formation, combination and arrangement of parts as will be herein described and In the accompanying drawings Figure 1 is a view showing the associated parts of the device in their connectedrelationship. In this figure the parts areshown in longitudinal section and also the ordinary wiring and the gas stove or burner is omitted. F ig. 2 is a transverse section taken through the resistance unit on the line 22 of Fig. '1. Fig. 3 is a similar view taken through the lighting point on the line 3-3 of Fig. 1. Fig. 4 is a general view of the installed apparatus showing the relationship of the gas burner and also showing in diagram the electric wires.

In these drawings there is shown the customary wires 10 and 11 of analternating electric circuit and in this circuit is. connected in the usual manner a commercial socket or receptacle 13, which in the present embodiment. is of the standard Edison .base

type. The wires 14 and 15 connect thi receptacle in the oircuit. The one 'side 10 of the circuit is grounded as indicated at 16 and in the connection of the lighting device the grounded contact of the receptacle is blanked off or insulated in a manner to be later described as the ungrounded side only is used from the receptacle on.

A-gas stove 17 is shown, this having burner 18. A metallic gas supply pipe 19 must be suitably connected to or embedded in the ground which is indicated at 20.

- Attached to'the receptacle by screwing it into the Edison base is a relatively fixed resistance unit 21 and a single wire 22 connects this with. a movable lighting point .23, the; latter having an electrode 242 which is located adjacent the gas burner and is adapted to be Specification of Letters Patent.

Thus making and breaking the circuit through the ungrounded side of, the circuit and the metallic gas pipe "groundthe gas may be ignited in a safe and conven ent manner.

Also the life of the parts is increased and the constructionsimplified. 'At 25 is shown how more than .one lighting point may be supplied from a single resistance unit. 1

'.The resistance unit is constructed of a tu- Patented Feb. 25, 1919. Application filed March 23, 1918: Serial No. 224,259. I

' brought-into momentary contact with the V metallic burner.

bular body or casin'g26 which is made of wood, rubber mother-insulating material and the upper end of this tube is exteriorly' threaded at 27 to coiiperatewith the threads of the Edison base, thus in 'a simple manner insulating the wire 14 and the connected. terminal of the receptacle, the wire 15 being v connected to the other terminal of the receptacle. A U-shaped' leaf spring ll-is secured within the cavity of the body and at the upper end thereof by means of the bolt 28. g This bolt extendsaxially of the tubular body through the upper end or integral head l 'of the same and the exposed bolt head 25) forms acontactor for the central terminal of the receptacle. The resistance ele-ment30 is made up of a suitable length of fiat resistance wire 31 which is wound in a helical path upon a core 32 of molded asbestos, the turns of the wire being properly spaced from each other. The core is of lessdiameter than the cavity of the casing 26 and is also provided with an inner 'head 33 and an,.outer head 34, thesebeing made of an insulating material such as hard fiber and being of suchdimensions as to fit snugly within the cavity of the easing 26. A bolt 35 passes axially through both of these heads and through the core and is used to clamp these parts together. The head of the bolt is let into the outer face of the head 34 and the point of the bolt is arranged to contact the free-end of the leaf spring 4-1.

The casing 26 is formed with a detachable head 36 at its lower end, this being screwed to the main portion of the casing. Overlying the insulating head 34 is an insulating shield 37 which is attached to the head 34 by means of the two bolts 38, these being isoneath the nut on head 43 and the body is an insulating washer" secured -by means of bolts 46 a longitudlmetallic leaf f spring 47.1 'p 'The lower terminal. of the wire 22-is secured- I electric circuit having one lated from central bolt'35. This shield insulates the head of the bolt 35- and,. its edges casing 26 and the head 36.

4 Current passes through the bolt 28 and the leaf spring 41 to the bolt35. The upper terminal of theresistance wire ,31 is secured current passes thence through the resistance wire to the one bolt 38.]v A metallic connector 39 extends between the bolts 38 and carries the current to end of which is secured beneath the nut of the other of knotted within the cavity of the head 36 so that the connections are relieved from. me

chanical strains. v

The lighting point 23 is likewise made up of 'a hollow'body 42 of insulating'material with a detachable upper head 43 screwed to itand through which the wire 22- passes, the

wire being similarly knotted at 44 within the I cavity of the head. Clamped between the 45- and to the lower or inner face thereof is nally extending,

one.;of the bolts 46;. r

The wall of the body 42 is pierced to admit a push button 48, through a channel in the inner portion of which the leaf spring 47 is passed. The leaf spring'thus retains'the beneath the nut on push button and the latter in turn prevents the rotation of the leaf spring and the washer 45' within the body. Extending through the lower integral head of the body 42 is the electrode 24 which has a surrounding shield49. Both the inner end and the outer point of the electrode, however, are exposed, the

and the former for conof the leaf spring 47 48 is depressed. Current will thus, when the circuit is closed by depressing the 'push button, pass through the wire 22, one of the bolts 46, and

are clamped betweenth e body of be. the bolt 35 and hence the Z the wire 22, the upper g ,connection"w1th receptacle wired in'-- the said circuit in the. hollow member formed of; an insulating material-and adapted tobe at-Q these bolts 38. The wire 22 is 1 1" burner and adapted to sulating material 'ceptacle,

latter for contacting the metal drawing the electrode overtthe gas burner 50..-

an igniting spark may be safely obtained. Thus has been describeda preferred em.

from the spirit thereofg;

} one side thereof rounded,- .a:;jgasb urner having a metallic he ground, a commercial usual manner,v a

tachedto the receptaclefia res stance unit within the hollow "member arranged. to'xbe.

'bodiment of the PrQ nt invention. Other embodiments are possible within the scope", 1 of the appendedclaims.without.departing connected tothe ungrounded side of the-cir-;

cuit when the said member .is

attached to the receptacle, the attachmentbeing fsuclr as to insulate the grounded side of the circuitat the receptacle, a lighting point'adjac'ent the be brought into momentary contact therewith, and a connection between the resistance unit and the lighting oint. 2. In an electric gas lighting side thereof grounded, a screw-base receptacle wired therein, a tubular member formed of an inand having threads-on one end thereof to cooperate with those of the refrom through the screw-end of the tubulardevice an 7 a resistance unit within the recep-Q A. 7

member and adapted to contact the central electric termlnal within thev receptacle, means at the other her for entering and for restraining the resistance un1t,-a

' connection with the ground, a lighting point adjacent the burner, and a connection tween Point. p

In testimony whereof I afiix my signature.

ROY F. D-OWDY.

end of the tubular memgas burner having a metallic the resistance unitan'd' the lighting

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