US666618A - Electric igniter. - Google Patents

Description

. No. 666,6l8. Patented m. 22, mm.

c. o. wmenr- ELECTRIC IGNITER. 7 (Application filed m 29, 1899.

(No Model.)

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UNITED STATES PATENT OFFICE.

CHARLES D. WRIGHT, OF CHICAGO, ILLINOIS.

ELECTRIC F IG NITER.

SPECIFICATION formingpart of Letters Patent No. 666,618, dated January 22, 1901.

Application filed May 29, 1899. Serial No. 718,780. (No modelshowing the relative positions of the contact- To ail whom it may concern:

Be it known that 1, CHARLES D. WRIGHT, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electric Igniters, of which the following is a specification.

This invention relates to improvements in devices to be employed for igniting gases, and while i't-is more especially intended to be used in connection with stoves in which gas or gasolene is used as fuel, yet it may be employed for igniting gases used for other purposes; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

One object of my invention is to provide a simple and inexpensive igniter for gas and other ignitable substances which shall be of such a construction and nature that an electric spark may be produced at the desired time and point, thus dispensing with the use of matches or tapers, the unburned portions of which are frequently thrown aside while still burning and often cause accidental tires and explosions.

Another object of myinvention is to so construct the handpiece of the igniter that it will not become short-circuited when laid upon a metallic surface.

Still another object of my invention is to so construct it that it may be readily attached to the supply-pipe of the stove in such a position that it will be entirely out of the way and yet always accessible.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which Figure 1 is a perspective view of a gasstove with my igniter attached thereto. Fig. 2 is a perspective view of the handpiece of the igniter, showing by dotted lines the position which a portion thereof will assume when the spark shall have been produced. Fig. 3 is a central sectional view of the battery and coil casing; and Fig. 4 is a side or detached view of a portion of the handpiece,

ing points.

Similar letters refer to like parts throughout the different views of the drawings.

A represents the casing for the battery- 'cells B and B and sparking coil 0, which casing is preferably tubular, as shown in the drawings, and may be provided with clamps a to encircle the gas or gasolene supply pipe A of the stove. Secured to one end of the casing A is a metal cap A which has a central projection a to rest against one end of the cont-act post b of the battery B, the other end of which post rests against the ad jacent end of the post- Z) of the battery B, the other end of the post Z) of the battery 8 resting against the adjacent end of the post 0 of the sparking coil 0, the other end of said sparking-coil post resting against a plate d, insulated from the metal cap A secured on the other end of the casing.

Passing through the cap A and insulated therefrom is a conductor I), one end of which contacts with the plate d, and the other end thereof is secured to the hand piece E, as shown in Fig. 2 of the drawings. Connected at one of its ends to the cap A is another conductorD, whose other end is electrically connected to a metal spring 6, which is secured to one end of the handpiece E and insulated therefrom. (See Fig. 2.)

The hand piece E is made of a piece of wire bent back upon itself to form a spring and having near one of its ends a U-shaped loop E for the reception and operation of the other end of the handpiece, which is provided with a piece 6, preferably in the form of a spiral spring, to contact with the arm e of the handpiece, which arm projects crosswise of the loop E, but at some distance therefrom, as is clearly shown in Figs. 2 and 4 of the drawings. The arm 6 is of sufficient length and so bent as to prevent it and the piece e contacting at the same time with the metal surface, such as the top of the stove, on which the handpiece may be placed, thus preventing short-circuiting, which would occur if a piece of metal united the piece (2 and the arm 6 or other portion of the handpiece.

From the foregoing and by reference to the drawings it will be seen and clearly understood that by pressing the portions of the hand piece toward each other, so that the piece 6 will contact with the arm a, a spark Will be produced, the conductor D being connected to one of the poles of the batteries, While the conductor D, through the metallic caps A A and casing A, is connected to the other pole.

It is apparent that the batteries must be insulated from the casing, and this may be done by providing the interior of the casing or the exterior of the batteries with suitable insulating material, or they may be insulated in any other desired manner.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an electric igniter, a handpiece comprising a continuous piece bent to form a with a yielding contact-point, substantially 30 as described. v

CHARLES D. WRIGHT.

Witnesses:

CHAS. O. TILLMAN, HARRY M. TAYLOR.

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