US606312A - Electric igniter for gas-engines - Google Patents

Description

(No Model.)

A. J. TACKLE. ELECTRIC IGNITER FOR GAS ENGINES. No. 606,312.

Patented June 28,1898.

IIIIIIl/III/I/ INVENTUR.

WITNE 5 SEE.

:rrn ra ns ARNOLD J. TACKLE, OF OAKLAND, CALIFORNIA.

ELECTRIC IGNITER FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 606,312, dated June 28, 1898. Application filed October 5, 1897. ria 1 654,155. (No model.)

To all whom it may concern:

Be it known that I, ARNOLD J. TACKLE, a citizen of the United States, residing at Oakland, county of Alameda, State of California, have invented a certain new and useful Improvement in Gas-Engine Igniters; andI declare the following to be a full, clear, and exact description of the invention.

My inventionconsists in certain details of construction,,which will be more fully eX- plained by reference to the accompanying drawings, in which Figure 1 is a sectional view of a cylinder provided with my improved igniting device. Fig. 2 is a transverse sectional view of the elastic electric terminal on the line X of Fig. 1.

The objects of my invention are to provide an improved form of igniting device in which all the springs for operating the elastic electrode are outside the cylinder and so beyond the influence of the heat developed by the explosion of the gas.

Another object of my invention is to provide an improved igniting device which will operate with the engine running in either direction and permitting the use of either a rotary or oscillating moving electrode for coming in contact with the elastic electrode.

Another object of my invention is to provide an improved igniting device in which all springs are inclosed and in which the escape of gases leaking past the stem carrying the elastic electrode is entirely prevented, even after long usage.

Another object of my invention is to provide an improved igniting device in which an unequal wear of the springs used will not change the point at which the spark is produced.

Referring to the drawings, A is the cylinder, which may be of any desirable or suitable form of construction.

0 is the moving electrode, and B is the clastic electrode.

The electrode 0 is secured to the stem N by means of a set-screw, so that it may be readily removed or adjusted. The stem N passes into the cylinder or combustion-chamber through the bushing S, which is formed with a shoulder on one end and is secured in position by a nut on the other end. On the stem N are two collars 2 and 3, oneinside the cylinder and the other outside, so as to keep the stem N projected a fixed distance within the cylinder and to prevent the leakage of gas past the stem i. A positive motion is given to the stem N by means of some moving part 'of the engine, which may be either moved for renewal and permitting the use of a harder material for the electrode 13 than that of the stem carrying same. The stem M passes into the cylinder or combustionchamber through the sleeve T. This sleeve is seated in the bushing E, which is insulated from the engine by means of asbestos or other non-conducting substance. This bushing E is made with a shoulder at one end and a nut on the other. Ashoulder on sleeve T comes against the outer end of bushing E, and a nut onthe inner end of sleeve T prevents its moving when screwed up tight. The object is to be able to remove sleeve T without destroying the insulation. A collar 4 on the inner part and a bar F 011 the outer end of stem M hold it a fixed distance within the cylinder A. The outer end of sleeve T is enlarged and has two chambers D and D opening into it, which are placed at right angles to the sleeve T.

The chambers D and D have two internal diameters, the outer part being the larger. Removable plugs P and P are screwed into the outer end of each chamber. Pins. L and L, having an enlarged head, are placed in the chambers, with a spring between the head of each pin L and L and the plugs in outer part of chambers, and when in normal position theheads of pins' L and L are held by the springs in contact with the inner end of the larger part of chambers D and D, the inner ends of the pins being close against bar F. It will be seen that if one spring bccomes more worn than the other it will not affect the position of the pins, and as the pins determine the position of the elastic electrode M there will be no change in its position.

The extreme outer part of sleeve T is circular and threaded, so that a cover R maybe screwed over it, thus inclosing the pins L and L and the end of stem M, thus preventin g any foreign substance from entering and any gases from escaping which may have leaked past the stem M. The moving electrode O coming in contact with the elastic electrode B will tend to turn the latter, when the bar F, which'is rigidly secured to the end of stem M, will depress the pin L or L, according. to the direction of motion, and allow the stem M to turn sufficiently for the two electrodes C and B to pass one another, which on breaking contact will produce the spark for firin g the gases. The spring under pin depressed will instantly bring the bar F, and thus the stem M, back to itsoriginal position when the two electrodes have passed one another, thus making the operation continuous. The wire connecting this electrode to the electric circuit may be fastened to the sleeve T or, as shown in the drawings, to cover R, as most convenient. The electric current may be supplied by means of batteries or a small dynamo in the usual way.

It will be understood that the igniting device may be applied to any type of gas-engine and that it may be placed in one of the valve-chambers, as well as within the cylinder of the engine.

In Fig. 1 the two electrodes are shown as parallel; but they may be placed in an y other position by changing the shape of the electrode to correspond. For instance, when placed at right angles the ends of the electrodes coming in contact would be at an angle of forty-five degrees to the stem carrying same instead of parallel.

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

1. In a gas-engine, the combination with the cylinder or combustion-chamber thereof, a bushing extending into cylinder or combustion-chamber through which a stem actuated by some moving part of the engine passes,carrying upon its inner end an electrode connected to one terminal of an electric circuit, a spring-controlled stem having a bar coming in contact with yielding pins rigidly fastened to its outer end, passing into cylinder or combustion-chamber through a sleeve mounted in an insulated bushing and carrying upon its inner end an electrode for yielding engagement with the first-mentioned electrode,which may travel in either direction and being connected with other terminal of electric circuit.

2. In a gas-engine, the combination with the cylinder or combustion-chamber thereof, of a positively-actuated electrode for coming in contact with a second movable electrode having a rigid cross-bar on the outer end of its stem, said stem passing into cylinder through an insulated sleeve having at its outer end an enlargement to receive said bar and two chambers opening into said enlarged part of sleeve, and a spring-seated pin having an enlarged head contained within each of said chambers and bearing respectively against opposite ends and on one and the same, side of said bar.

3. In an electric igniter, the combination with a positively-actuated electrode of a second movable electrode having a rigid crossbar on the outer end of its stem, an insulated sleeve surrounding said stem and having at its outer end an enlargement to receive said bar, and two spring-seated pins carried by said sleeve and bearing respectively against opposite ends and on one and the same side, of said bar.

In witness whereof I have hereunto set my hand.

ARNOLD J. TACKLE.

Witnesses 2 OTTO G. TACKLE, ANDREW Snnnmn.

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