US513300A - Electric gas-lighter - Google Patents

Description

(No Model.)

' W. L. BROWN.

I ELECTRIC GAS LIGHTER. No. 513,300. Patented Jan. '23, 1894.

UNITED STATES PA ENT OFFICE.

WINSOR L. BROWN, OF SAN FRANCISCO, CALIFORNIA.

ELECTRIC GAS-LIGHTER.

SPECIFICATION forming part of Letters Patent No. 513,300, dated January 23, 1894. 7 Application filed .Iune 22, 1893. $erial No. 478,501. (No model.)

To all whom it may concern.-

l 3e it known that I, WINSOR L. BROWN, a OllZlZGll of the United States, residing in the clty and county of San Francisco, State of California, have invented an Improvement in Electric Gas-Lighters; and I hereby declare the following to be a full, clear, and exact description of the same.

Myinvention relates to the class of electric gas llghters, in which electrical contact is made and broken between electrodes in the vicinity of the gas burner, whereby the electrlc spark produced will light the gas.

My invention consists in the novel cam movement for effecting a contact of the electrodes, and also in the novel construction and arrangement of the electrodes themselves which I shall hereinafter fully describe and specifically point out in the claims.

The object of my invention is to provide a simple, effective, and easilyoperated gas-lightlng device, the operation of which is dependent upon and is simultaneous with the operation of the ordinary gas cook key, whereby no instruction whatever need be given in the manner of. lighting the gas, as is ordinarily necessary. in the use of electric gas lighting devices commonly employed.

Referring to the accompanying drawings for a more complete explanation of my invention,--Figure 1 is a front elevation. Fig. 2 is a side View. Fig. 3 is an elevation of the cam E.

A is a gas pipe having a seat in which is fitted the usual valve B having a key 0. D is a burner mounted upon the pipe.

Upon the stem of the valve or of its connected key is mounted and adapted to be rotated therewith a cam E. This has a chamber on its inner side, in which is pivoted at e the gravity switch tongue 6 which divides the chamber of the cam into two passages,

namely, an outer or upper one 6 which is eccentric to the circle of movement of the cam, and the lower one a which is concentric therewith. These two passages communicate at both ends of the switch tongue.

F F are two arms, the upper extremities of which form the electrodes. These arms are joined at their lower ends and are made of metal sufficiently springy to allow their upper ends to remain normally separated. They are mounted and are adapted to move up-' wardly through a slotted guide G mounted on the burner pipe. Above this guide is a bracket 11 also secured upon the burner pipe, and having slots h in it through which the arms pass. These arms have on their outer edges, inclined planesfwhioh, by playingin the slots of the bracket H, cause the arms to be forced together as they rise, thereby effecting the contact of their extremities, and allow them to return to their normally separated position as they descend. One of the arms, namely, the arm F has its extremity f separated from its body and united thereto by an insulating piece f whereby the wire carried to this insulated extremity will form the proper circuit, thus constituting the extremities of the arms the proper poles or electrodes. The lower ends of the arms F F where they are joined together, is provided with an outwardly extending pin or stud I which extends into and plays in the passages of the cam.

The operation of the device is as follows:- When the key is turned off, the pin or studI of the electrode arms lies at the front of the cam passages at the point of the tongue, said point resting upon the lower wall of the cam thereby opening only the upper passage thereof. Now, upon turning the key, to allow the gas to pass through the burner, the upper or eccentric passage of the cam traveling by the pin or stud I, raises the latter upon the switch tongue, and thereby lifts the arms F F, the inclined planes f of which, playing in the slots 71. of the bracket II, will cause said arms to be sprung together, so that by the time the uppermost limit is reached, the extremities of said arms will come into electrical contact. This is just before the key reaches its full open position. Now, by continuing the movement of the key, the back end of the upper or eccentric passage of the.

cam acting upon the pin or stud I, will positively draw the latter down again which movement will return the electrode arms, the inclined planes of which being relieved of the slots of the bracket, will, at the beginning of the downward movement, permit the extremities of said arms to be separated, whereupon the spark is produced and the gas ignited. Now, by turning the key back again, to close 0d the gas, the pin or stud I will travel in the lowermost or concentric passage of the cam under the switch tongue thereof, and raising said tongue until it passes beyond and clear of the point thereof to its initial position, and during this movement the lower passage of the cam being concentric, the electrode arms F F are not moved, but remain stationary. The point of the switch tongue drops down to its original position back of the pin or stud I, which is thereby in proper position to travel again in the uppermost or eccentric passage of thecam. Thus, by the single movement of the keyin turning on the gas, the latter is ignited.

The construction of the cam is simple, and the manner of elfe'cting and breaking the contact of the electrodes is simple in construction and positive in operation.

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

1. In an electric gas lighter, and in combination with a movable electrode, a rotatable cam having eccentric and concentric passages communicating at their ends and adapted to engage the movable electrode to move it when the cam is turned in one direction, and allow it to remain stationary when it is turned in the other direction, substantially as herein described.

2. In an electric gas lighter and in combination with the movable electrode, a rotatable cam having an eccentric and a concentric passage communicating at each end and separated by a swinging switch tongue, and a pin or stud on the movable electrode adapted to travel in the eccentric passage of the cam when it 1's moved in one direction, and to return in the concentric passage thereof when it is moved in the other direction, substantially as herein described.

3. In an electric gas lighter and in combination with the movable electrode and the key of the gas cook, a cam connected with said keyand adapted to be rotated therewith, said cam having an eccentric and a concentric passage communicating at each end, and a pin or stud on the movable electrode adapted to travel in the eccentric passage of the cam when it is moved in one direction, and to return in the concentric passage of the cam when moved in the other direction, substantially as herein described.

4. In an electric gas lighter and in combination with the movable electrode and the key of the gas cook, a cam connected with said key and adapted to be rotated therewith, said cam having an eccentric and a concentric passage communicating at each end, a pin or stud on the movable electrode adapted to travel in the eccentric passage of the cam when it is moved in one direction, and to return in the concentric passage of the cam when moved in the other direction, and a swinging switch tongue in the cam dividing its passages and by which the pin or stud of the movable electrode is alternately directed in said passages, substantially as herein described.

5. In an electric gas lighter, the vertically movable spring arms, the extremities of which form the electrodes, said arms having the inclined planes on their edges, and suitable guides against which said planes operate to force the extremities of the arms together when moved in one direction, and to allow them to become separated when moved in the other direction, substantially as herein described.

6. In an electric gas lighter, the vertically movable springarins, the extremitiesof which form the electrodes, saidarms having the inclined planes on their edges, and suitable guides against which said planes operate to force the extremities of the arms together when moved in one direction, and to allow them to become separated when moved in the other direction, one of said arms having an insulated point for its extremity, substantially as herein described.

7. An electric gas lighter,consisting of the cam connected and rotatable with the key of the gas cook, said cam having the eccentric and the concentric passage communicating at each end and separated by the swihging switch tongue, the spring arms E F, the extremities of which form the electrodes, said spring arms having the inclined planes operating in guides to effect the contact and separation of their extremities, and the pin or stud on the lower end of said arms traveling in the passages of the cam, substantially as herein described. I

In witness whereof I have hereunto set my hand.

l/VINSOR L. BROWN.

Witnesses:

S. H. NoURsE, J. A. BAYLESS.

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