US971413A - Igniter for gas or other internal-combustion engines. - Google Patents

Description

G. Z. SMITH. IGNITEB FOR (ms OR OTHER INTERNAL GOMBUSTION ENGINES.

ArPLIo'ATIoN rmm JAN. 6. 1910.

Patented Sept. 27, 1910.

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GEORGE Z. SMITH, OF SALT LAKE CITY, UTAH.

IGNITER FOR GAS OR OTHER INTERNAL-COMBUSTION ENGINES.

To all whom it may concern:

Be it known that I, GEORGE Z. SM'i'rH, a citizen of the United States, and a resident of Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Igniters for Gas or Other Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in devices for igniting an explosive mixture in the cylinders of engines having fluid fuel, and it consists in the combinations, constructions, and arrangements of parts herein described and claimed.

An object of my invention is to provide a novel means for cleaning the spark terminals without removing the same from the engine, or without stopping the engine.

A. further object of my invention is to provide a plurality of contact points which may be removed. separately so that one or more may be used, as desired.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this specification, in which similar reference characters indicate like parts in the several views, and in which Figure 1 is a side view of the device, Fig. 2 is a central longitudinal section through the device, Fig. 8 is an end view looking in the direction of the arrow in Fig. 1, Fig. 4 is a section on the line 44 looking in the direction of the arrows in Fig. 2, Fig. 5 is a detail section along the line of Fig. 2, and Fig. 6 is a detail view showing the contact points in their shifted positions.

In carrying out my invention, I provide an insulating base A of any suitable shape. This consists of a main portion a. and a reduced portion (1. the latter being designed to extend through the wall of the explosion chamber, while the portion a may be secured to the exterior portion of the wall of the explosion chamber, by means of bolts or screws passed through the openings (1 Through one portion of the insulating base A is passed the rod B, provided with a threaded end I). At the opposite end of the rod is a collar Z) having an extended portion 5*, which constitutes one of the spark terminals or contacts. The end 7) of Specification of Letters Patent. Patgntgd Sept, 27, 1910,

Application filed January 6, 1910.

Serial No. 536,757.

the rod B is provided with two nuts 6' and 6*, between which is held the end of the conducting wire O. The lower nut may be provided with a spacing ring 6'' of insulating material or a metal ring, if desirable. In another portion of the insulating base A, the rod F is held. One end of this red is provided with a collar 7 similar to the collar Z) of the rod B. This collar has an integral extension 7 provided with series of slots f arranged to hold contact terminals, such as that shown at These terminals, are held in place by means of a plate 7 provided with slots which register with the slots f in the extension f, the plate be ing secured by means of the screws 7'. It will be seen that by unloosening the screws, the contacts may be pushed in or pulled out of the holder thus formed. To the opposite end of the rod F is secured a small hand wheel W. This wheel has an integral sleeve G projecting from one side, provided with a slotted portion g on one side thereof, (see Figs. 2 and i). Disposed on the rod F is a sliding collar K which is provided with a laterally extending cam member Zr. The latter projects through the slot 9 in the sleeve G and provided with a guide member M which is secured by means of the screw m to the cam member 7a. The sleeve G and the wheel \V are held away from the sliding collar K by means of a spiral spring S on the rod F, which is secured to the wheel IV and which may be pushed inwardly against the tension of the spring and rotated to bring the separate contacts 7 down against the common terminal 6 as shown in Fig. 6.

On the opposite end of the insulating base portion a are two pins P and P. The former serves to attach the spring S whose other end is secured to an arm V in the movable collar K. The arm V is thus held normally against the stop pin P.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. Normally the cam member K projects into the path of a cam operating member, not shown, which engages it periodically and turns it to bring the terminals together, after which they are caused to separate by means of the spring. it will be seen that as the arm K is moved in the direction indicated by the arrow in Fig. 5, itpushes the sleeve G around, thereby rotating the rod F, and bringing the In the construction disclosed above.

contacts f into engagement with the common contact 6 The parts are restored to their normal positions by means of the cumulated upon them, thereby rendering them clean and ready for instant use, without the necessity of removing them from the engine. It will be noticed also, that by loosening the nuts Zr and b the rod I) bearing the terminal I) may be rotated so as to set the latter in any position with respect to the separate contacts. The means for holding the contacts permits the adjustment of any one or all of the individual contacts, or the replacement of the contacts themselves, when they become worn.

I claim:

1. In av gas engine igniter, an insulating base, a pair of parallel rods, one of said rods being stationary and being provided with a common contact, and the other of said rods being iiiovable and being provided with a plurality of contacts adapted to engage said common contact, a sleeve secured to the end of said movable rod, a movable collar disposed about said movable rod and arranged to engage said sleeve for rotating the latter, said sleeve and said movable rod being arranged to rotate so as to bring the separate contacts into engagement with the common contacts, and to be reciprocated for causing frictional engagement of the cont-acts for cleaning purposes and a spring for restoring said movable rod to its normal position.

2. In a gas engine igniter, an insulating base, a common contact carried thereby, a series of movable contacts arranged to be brought into engagement with said stationary contact, said movable contacts being mounted for individual adjustment, and means for eflecting a simultaneous movement of said series of contacts along the surface of the common contact for cleaning purposes.

GEORGE Z. SMITH.

lVitnesses G. IV. SPIEGEL,

THOMAS LEE GRAHAM.

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