US1151155A - Gas-engine. - Google Patents

Description

W. 0. BINGAMAN.

GAS ENGINE.

- APPLICATION FILED NOV. 11. 1913.

1,151,155. Patented Aug. 24, 1915.

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GAS ENGINE.

APPLICATION FILED Nov,1l.1913.

1,151,155. Patented Aug. 24,1915.

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WALLAGE O. BINGAMAN, FLORA, INDIANA.

GAS-ENGINE.

Specification of Letters Patent.

Application filed November 11, 1913. Serial No. 800,271.

\ To all whom it may concern.

Be it known that I, WALLACE O. BING- AMAN, citizen of the United States, residing at Flora, in the county of Carroll and State of 'Indiana,have invented certain new and useful Improvements in Gas-Engines, of which the following is a specification.

This invention relates to gas engines, and has for its object the provision of a gas engine of the two-cycle type in which the parts will be compactly arranged and simply constructed.

Another object of the invention is to sim plify the construction of the timer and torso arrange the parts that the timer may be automatically rendered inoperative when the speed of the engine becomes excessive.

Other incidental objects of the invention will appear as the description of the same proceeds, and the invention consists in certain novel features which are illustrated in the accompanying drawings and are particularly pointed out in the claims following the hereinafter given detailed description.

In the drawings: Figure l-is a plan view of an engine embodying my improvements; Fig. 2 is an enlarged sectional plan view showing the governor and timer; Fig. 3 is a diagrammatic view of the timer and the circuits through the same and the spark plug.

In carrying out my invention, I employ a base or other supporting frame 1 upon which is secured in any desired manner a casing, one portion of which constitutes a crank case 2 and the other portion of which constitutes a cylinder 3. The driving shaft 4: of the engine is journaled in and extends through the sides of the crank case and is provided within the crank case with a crank portion which is connected by a pitman with the piston mounted within the cylinder 3. The cylinder 3 is provided with external cooling ribs 14 and is provided intermediate the carbureter bowl. with the arm 37 and extending from the fulasshown most clearly in Fig. 1. A fan 23 18 secured upon the inner end of the said shaft immediately adjacent the cylinder, so as to play upon the ribs 14 and thereby cool the cylinder, as will be readily understood.

The fuel is stored Within a tank supported in any convenient manner at the rear of the crank case and a supply pipe leads from said tank into the bottom of the carburetor bowl 25 which is secured to and communicates with the crank case.

Upon one of the fly-wheels are mounted governor arms 29 which extend through the fly-wheels in the spaces between the spokes thereof and are provided at their outer ends with the weights or balls 30, as shown. The said outerweighted ends of the governor arms are connected by a spring 31 which tends to draw the said weighted ends of the arms toward each other and thereby hold the governor in the normal position. The inner ends of the governor arms extend substantially radially of the fly-wheels, as shown at 32, and engage an annular groove in the governor sleeve 33 slidably mounted upon the crank shaft 4. The said governor sleeve is constructed with an annular groove 34: in which plays pins or studs carried by the forked inner end of a lever, 35 fulcrumed upon a bracket 36 projecting from the base or support of the engine and the outer end of the said lever extends under a vibratory arm 37 which is fulcrumed upon a post on Connected rigidly crum thereof over the carburetor bowl is a presser arm 60, and on the under side of the arm 37, near the outer end thereof, is a projection adapted to be engaged by the outer end of the lever 35. The movement of said lever against and under the projection has a cam-like or lifting action upon the arm 37 so that the arm will rise and the presser will be correspondingly lowered.

Slidably mounted in the top of the carbureter bowl is a stem 62 having a head on its upper end and having its lower end formed into a needle valve which seats in the fuel inlet to close the same. The head 63 is directly under the free end of the presser arm 60 with suflicient clearance between the same to permit the valve to rise and admit fuel to the engine. The carbureter is provided with an air inlet 67 and a tubular projection 68 which may be bolted or otherwise secured to a similar projection Patented Aug. 24, 1915..

69 on the crank case, thereby providing a conduit for the flow of fuel to the crank case and within the conduit is a suitable valve to control the flow to the crank case and hold the pressure therein. As the speed of the engine increases, the balls or weights 30 will move toward the periphery of the fiy-wheel and the governor arms will swing about their pivots so that the sleeve or collar 33 will be moved axially upon the crank shaft under excessive speed and, consequently, the lever 35 will be swung about its fulcrum and the free end thereof ride under and raise the arm 37 and lower the presser 60 onto the head 63 whereby the needle valve will be held seated and the supply of fuel cut off until the speed is again normal.

The inner end of the governor sleeve 33 is utilized as a timer disk and to this end is provided with a conductor strip or block 39 which is preferably inserted in the base or end of the sleeve, as clearly shown in Figs. 1 and 3, so that it will lie flush with the said end face of thesleeve and, consequently, ride easily and smoothly under the contact spring 40 constituting the co-acting member of the. timer; It will be readily understood, of course, that the governor sleeve is constructed of some insulating material so that the timer circuit will be closed only when the strip or block 39 is in engagement with the end of the spring 40. The said spring 40 projects from the end of a rod 41 rotatably mounted in a suitable bearing formed on the outer end of a bracket or plate 42 secured to and projecting from the crank case or base of the engine and the end of the said rod 41 remote from the spring 40 is constructed with a spiral groove or thread 43 which is enga ed by the end of a pin 44 seated in the said racket 42 and held in engagement with the said groove by a spring 45 bearing upon the inner end of the pin, as clearly shown in Fig. 3. The outer end of the rod 41 is equipped with a turning knob or handle 46 of insulating material and the said knob has an extended hub or sleeve 47 also of insulating material which encircles and is intimately secured to the end of the rod. If the handle be manipulated so as to carry the rod inwardly to the limit of its movement the sleeve or hub 47 will ride under the end of the pin 44 and thereby break the timing circuit. It will also be understood that by adjusting the said rod longitudinally the end of the spring 40 will be moved to or from the vertical radius of the timer disk and, consequently, the spark advanced or retarded.

A spark plug 48 is mounted in the outer end of the cylinder 3 and maybe of any preferred construction. This spark plug is connected by a conductor 49 with the usual coil 50, the said coil being also connected by a conductor 51 with a metallic portion of the crank case or cylinder so that the seconda circuit will be completed through the meta lic parts of the engine to the spark plug. The inner end of the spring 45 is connected by a button 52 or other convenient device with a conductor 53 which leads to a battery or other source of electrical energy and the other terminal of the battery is connected with the primary winding of the coil 50 by a conductor 54 in the usual manner.

It will, of course, be understood that, inasmuch as the inner end of the governor hub or sleeve 33 is utilized as one member of the timer, when the said sleeve is moved outwardly under an excessive speed of the engine, the inner end thereof will be moved away from the spring 40 and, consequentl will rotate without making the usual perio ical contact therewith, and, conse uently, the timer will remain ino erative so t at the engine will be quickly slbwed down to the desired normal speed and wasting of the current will be prevented. The rod 41 with the parts co-acting therewith constitute an exceedingly simple and efiicient means for advancing or retarding the spark and when it is desired to stop the engine it is not necessary to manipulate a distant switch, but the desired result is accomplished by merely 1o tat-ing the rod 41 so that it will ride inward through the engagement of the pin 44 and the groove or thread 43 until the end of the insulating stem or hub 47 rides under the end of the said pin. When the engine is at work its speed is automatically regulated and the working parts are all of simple construction so that they may be easily repaired, and the governing mechanism is accessible so that it may be cleaned and adjusted as frequently as may be necessary under any given circumstances without requiring an entire rearrangement or dismantling of the engine.

What I claim is 1. In .a gas engine, the combination of a rotary timer member having a contact point thereon, and a co-acting member mounted in a fixed bearing upon the engine and movable across the face of the rotary contact member in a plane parallel to the path of movement of said member.

In a gas engine, the combination of a rotating timer member having a contact point in its plane face, and a longitudinally movable rod disposed in a plane parallel with the plane face of the rotatable member and having a yieldable contact point adapted to engage the contact point of the rotatable member.

3. In a gas engine, the combination of a rotatable timer member having a contact point in its plane face, a rod disposed in a plane parallel to the plane face of said rotatable member, a yieldable contact member carried by said rod and adapted to engage the contact in the rotatable member, a conductor pin engaging the said rod, and a nonconducting member upon the said rod adapted to ride under said pin to render the timer inoperative.

4. In a gas engine, the combination of a rotatable timer member having a contact point in its plane face, a rod mounted adjacent said rotatable member and provided with a 10 threaded portion, a contact member carried by said rod and adapted to bear against the

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