US932804A - Controller for gas-engines. - Google Patents

Description

a. L; MQHE'NRY. UONTROLLER FOR GAS ENGINES. APPLICATION FILED JAN. 18, 1908..

Patented Augr31, 1909.

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a. L. MoHBNRY. OONTROLLBR FOR GAS ENGINES. A PPLIUATION I'ILED JAIL-18, 1908.

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L T E "Q o o wmm I I mm W W %6.W 0mm Patented Aug. 31, 1909.

V cmanucn n. manner, or LANSING, MICHIGAN.

CONTROLLER FOR GAS-ENGINES.

Specification of Letters Patent. Patented Aug. 31, 1909.

Application filed January 18,1908. Serial No. 411,391.

To all whom it may concern:

Be it known that I, CLARENCE L. Mo- HENRY, who am a citizen of the United States, residing at Lansing, county of Ingham, State of Michigan, have invented a certain new and useful Improvement in Controllers for Gas-Engines, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to whichit pertains to make and use the same, reference being had to the accompanying drawings, which form a part of thisspecification.

This invention relates'to controllers for gas engines, and has for its object an im-' proved device for regulating the speed at which a gas engine is allowed to run without stopping the operation of theengine, and without changing the quality of the gaseous mixture supplied by the carbureter as a means for varying the engines speed.

In the drawings :Figure 1, is a front elevation of that portion of a gas engine to which the device is appurtenant, showing its relation thereto. Fig.2, is a perspective of the device itself, and the operation of the hook-up rod controlling the exhaust valve of the engine. Fig. 3, is a sectional plan device, and of the adjacent portlons of the hook-up rod and push rod. 7 a

1 indicates the fly wheel of an engine, whose speed of rotation may be automatically regulated to a degree bythe ball governors 2. At various points in the sleeve 3, which encircles the shaft 1, are located spiral springs 5 controlled by screws 6 by means of which the degree of yielding resistance offered to the centrifugal movement of the balls 7 maybe regulated, when the device is at rest. Engaging within a niche or shoulder 8 of the collar 28 which adjoins and is in a way a continuation of the sleeve 3, is the lower end 9* up lever 9, which is fulcrumed at 9, and which is kept pressed against said collar 28 by the spring 10. This lever extends above the fulcrum preferably to about doublethe distance of its extent from the fulcrum to the shoulder 8. Engagingagainst itsupper end is the bolt 16 which projects from. the main portion of a Y-shaped device 23, whose branches engage on each side of a push rod casing 11, on the upper end of whose valve rod 11 is mounted the valve 12, by whose closure upon its seat 12 vacuum in the cylinder 13, prior to the injoined by a the device is a spring 3) which, with adjustable degrees of presagainst the hook-up position of the one . sultin of the of the hookvious that for the creation of a drawing of a gaseous charge, is made possible. The valve is kept normally, though yieldingly, on its seat by the pressure of the spring 14. The tips of the branchesof the Y-shapeddevice or coupling piece may be bolt 27 which serves to clamp the device as tightly about the casing 11 as desired. Thestay pins29 may also be used for further securing purposes.

Engaging through. the main portion of 15, (see Figs. 2 and sure, engages againstthis hook-up lever 9, or rather forces the bolt 16 against it. The position of the spring within the device, and consequently thedegree of projection of the bolt between the branches of the same and lever, is regulated by the handle or stem 17 in any of the notches 18. If a low speed is desired, and consequently unusually sharply defined terminations of the periods when the valve 12 is moved from its seat, the stem is set so that the pressure of the bolt against the hook-up lever 9 is increased, re-

g in allowing a corresponding compression of the springs 5, which in turn compels the ball regulators to move away from the hub, and thereby decrease the speed of rotation of the fly wheel accordingly. If'however, a higher speed is desired, the stem and its related spring 15 and bolt 16 are moved further toward the rear of the body portion of the device, by moving the handle or stem 17 into one of the more rearward of the notches 18. This results in the lever 9 being held less closely against the contact block 11 on the valve rod 11 so that it does not follow up as promptly as before with its lower end, the recession of the collar 28 and sleeve 3 along the shaft 1 toward its outer end and against the pressure of the springs 5. The position of the handle or stem 17 along the notched main or body portion of the Y-shaped device 23 indicates at a glance, to one familiar with the possible ranges of speed, the rate at which the engine is then running. It is obthis bolt and its holding notches there could easily be substituted a screw engaging lengthwise of the body portionof the device, whereby the projection or retraction of the bolt through the medium of the spring could be effected. In either case, as the movement of the end of the lever whereon the device is mounted does not exceed one-fourth in combination a valve rod, a casing stead ofmerely when it is stationary. pivot-ed eccentric couldslmilarly be sub 'stituted; for either of an inch, it is obvious that, unlike the springs 3 on the fly wheel shaft, adjustment could be'made at any time when the engineis running, in-

of these without departing from the spirit of the ideahere disclosed.

hat I clalm is rs 1. Ag controller, having in combination with; a'valve rod and a pivoted lever adapt-,

ed to engage with a moving portion of an engine, a casing w thin which said valve rod slidably engages, a member supported 7 y said casing and engaging about the lever, and resilient means slldably engaging th'rough'the body portion of said member "and against said lever,adapted to be adjustrod may be varied, substantially as described.

. 3. Inicombination with a valve rod, a routatable shaft, a fly wheel mounted thereon,

arball governor whereby the speed of rotation thereof may be controlled, a casing about a portion of the length of the valve rod, a pivoted leverintermediate said valve rod and said fly wheel, and adjustable means yieldinglyengaging about said valve rod and lever whereby the lever may be moved to influence the governors and thereby the speed of rotation of the fly wheel, substantially as described.

4. In combination with a a ball governor and a supporting shaft therefor, with respect to which said ball governor is movable, a valve rd, a casing within which the same is slidable, and an adjustable member supported by said casing resiliently forcing the opposite end of said lever from that adjacent to said ball governor against said valve rod, substantially as described.

,5. In combination with a valve rod, a casing therefor, a lever, adjustable means for causing a frictional engagement between the valve rod and the lever, comprising'a coupling piece engaging about said members, resilient means engaging through the body portion of said coupling piece and against one of the members, whereby it is forced against the other, substantially as described.

In testimony whereof, I sign this specification in the presence of two Witnesses.

CLARENCE L. MoHENRY.

Witnesses VIRGINIA C. SPnA'rr, WILLIAM M. SWAN.

pivoted lever,

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