US443064A - Governor for gas-engines - Google Patents

Description

(No Model.)

BARRETT Sv J. F. DALY. GovEENoE EOE GAS ENGINES.

No. 443,064. Patented Dec. 16, 1890.

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TME Noms Pneus cm, morn-mmc., maumurau, n. c.

"UNITED *STATES PATnNr Ormea...v

MORA M. BARRETT AND JOHN F. DALY, OF SAN FRANCISCO, OALIFORIA.

GOVERNOR FOR GAS-ENGINES.

SPECIFICATON forming part of Letters Patent No. 443,064, dated December 16, 1890.

Application iiled May 16, 1890. Serial No. 352,050. (No model.)

To @ZZ whom z5 may concern: easily up and down on the post independently Be it known that'we, MORA M. BARRETT of the driven sleeve below it.

and JOHN F. DALY, citizens of the United I is a coil-spring attached at the lower end St-ates, residing in the city and county of San to the part O and at the upper end to the 55 5 Francisco, and State of California, have iucross-bar Il. At this last-mentioned point vented certain new and useful Improvements the 4connection is made by a screw-threaded in Governors for Gas-Engines, of which the coupling composed of the two parts 7.: 75X, one following is a specification. part a screw-threaded thimble working over Our invention relates to the production of the other part, which is threaded externally. 6o

1o a governor or automatic device for regulating The upper end of the spring is made fast to the supply of gaseous mixture to the cylinthe tubular piece and the coupling furnishes ders of gas-engines and other engines of that a means for regulating the tension of the class in which the motive power is an explospring, by which the cross-bar is held down sive gas; and it consistsin the parts and oomagainst the curved ends of the centrifugal 65 r 5 bination of parts hereinafter described and arms with greater or less degree of force.

claimed, producing a governor of great deli- On the fixed post above the cross-bar is a cacy in operation and of considerable simloosely-fitting sleeve resting on but not atplicity in construction. tached to the crosslbar, so that while rising The manner in which we have carried out and falling on the post under the vertical 7o 2o and produced our invention will be fully unmovements of the cross-bar it does not turn derstood from the following.,r description, in with that piece. This sleeve is in turn sur- `which the accompanying drawings is referred rounded bv an outer sleeve or tubular piece to by letters. M, to which a rotary movement is given in Figure 1 is a side elevation of the upper a limited are upon the inner sleeve without 75 z 5 end of a gas-engine having our governor apvertical or sliding movement. This circular plied thereto.` Fig. 2 is a plan view of the movement of the outer piece M is produced same, showing the governor-stem and valveby the perpendicular sliding movement of stem in transverse section. Fig. 3 is au enthe inner piece L through the medium ofvan larged view of the governor detached, showinclined slot m on the piece L and a fixed pin 8o 3o ing portions in sections, and also showing a ny in the post B, the outer sleeve being conportion of the valve. Fig. 4: is an enlarged nected with the piece L by a pinp on the latplan view of the valvebar and cross-head, ter, which sets into a groove px in the sleeve showing the governor-stem and valve-stein L, extending vertically, as shown, and as thus in section. connected the two sleeves must turn together 85 3 5 A indicates abrachet-piece orbase furnishon the Iixed post; but the inner sleeve proing a support for an upright rod or post B, duciug such rotary movement has also'perhaving its lower end fixed inthe base. pendicular movement on the post that does C isa sleeve or tubular piece fitted to renot affect the out-er sleeve in that direction. volve freely on a post and carrying on its R is a cross-head fast on the outer sleeve, 9o

4o lower end a sheave or pulley D for a driviug-V and S is a forked bar attached to one end of belt E. To this loose sleeve, at or near the the cross-head bya pivot-joint SX, from which top, are attached by hinge or pivot joints g point of attachment it extends substantially two levers G G, having centrifugal balls G horizontal to embrace the stem or spindle T ou the outer ends and terminating in curved of the valve. The forked arms of the bar are 95 45 toes or cams Gzon the inner ends beyond the wedge shape, with a taper from the point topivots. Above these curved ends and restward the body and with the bottom face ining upon them is a cross-bar lil, having fricclined; but the top face is level, so that as tion rollers or wheels hx, that rest upon the the bar is set forward between the bottom of ends of the levers, and also fitted loosely on the valve-body X, which is a fixed point of roc 5o the fixed post to turn freely around it with bearing, and a collar V on the valve-spindle the sleeve below, but also capable of sliding the lift of the valve will be limited according tothe Vposition of the forked bar. rl`hat face of the collar on which the forked arms ride is connected or rounded to bring the lj earing surface close to the center around the valvespindle. The forked bar is thrown forward or drawn back by rotation of the outer sleeve in one direction or the other, the backwart motion being produced by a spiral spring XV, that is attached to the cross-head at a point inside of the joint SX and at the opposite end to the forked bar at WX to act contrary tothe upward movement of the revolving cross-bar, and so keep the foot of the sliding' sleeve always against the cross-bar. 'lhe outer sleeve is somewhat longer than the inner sleeve, and the cross-head is formed in two parts that clamp the sleeve near the top.

After the parts are slipped into place on the post the upper sleeve is kept down by a nut y taking on the screw-threaded end of the fixed post.

The operation of these parts as thus constructed and combined willbe well understood without special description. The position of the parts of the governor when the valve has full throw is shown in Figs. 2 and 3. lYith an increase in speed the centrifugal arms raise the revolving cross-bar, and through the action of the other parts the forked piece is thrown forward, as illustrated in Fig. l.

Having thus fully described our invention, what we claim, and desire to secure by Letters Patent, is-

1. The herein-described governor, comprising the driven sleeve mounted on a stationary post having rotation without longitudinal movement, the centrifugal arms pivoted to said sleeve and having curved inner' ends extending beyond the pivots, a cross-bar bearing upon said curved ends and having both rotation and longitudinal movement, a loose sleeve resting` upon said cross-bar but not rotating with it, a fixed pin on the stationary post and an inclined slot in the loose sleeve as means by which partial rotation of the sleeve is produced when the sleeve is moved longitudinally, an outer sleeve having partial rotation with the said sleeve, but not longitudinal movement, a cross-bar secured on said Outer sleeve, a wedge shaped bar pivoted to said cross-headand having its wedge-shaped portion set between a xed post or shoulder around the stem or rod of a valve to be controlled, a collar on said valve-rod, and a spring attached to the cross-head and the wedgeshaped bar to draw them into angular position for operation, as set forth.

L. In an engine-governor, the combination of the driven sleeve C, mounted on a fixed post and having centrifugal arlns G, with curved toes G2, the revolving cross-bar Il, having also longitudinal movement by which rotation of a part above it is produced, and the adjustable spring l, attached to the said cross-bar and to a `fixed point on the driven sleeve, substantially as described.

i5. In an engine-governor, the con'lbination, with the driven sleeve and the revolving crossbar, of the two-part rotating sleeve, the inner part of which has longitudinal movement and partial rotation produced by the upward movement of the revolving cross-bar, and the outer part of which has rotation with the said inner part without longitudinal movement, substantially described.

4. In an engine-governor, the combination, with the rotating sleeve M, of the cross-head R, fixed thereon, the wedge-shaped slide-bar S, pivoted to said cross-head, and the spring lV, substantially as described.

5. In combination with the stem or rod of a valve to be controlled, the collar V on the rod, the wedge-shaped slide-bar S, a looselyturning sleeve M,havinga cross-head, to which the said slide bar is connected, a driven sleeve carrying and giving motion to centrifugal arms, means whereby the angular movement of said arms is caused to turn or rotate said cross-head-carrying sleeve in one direction, and a spring XV, applied to act upon said slide-bar in a direction contrary to that produced bythe centrifugal arms, substantially as described.

In testimony that We claim the foregoing we have hereunto set our hands and seals.

MORA H. BARRETT. [L s l JOHN F. DALY. it.. s] Witnesses:

CHAs. E. KELLY, EDWARD E. OsBoRN.

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