US1409170A - Governor for tractor engines - Google Patents

Description

C. G. HARTLEY.

GOVERNOR FOR TRACTOR ENGINES.

APPLlcATloH min sEPT.25,1919.

1,409, 1 70 Patented Mar. 14, 1922y Hi i l'l l IN VENTOR.

ATTORNEY.

f JeALvrN GLENN HAMLEY UNITED [STATES OF ROANOKE, INDIANA,

PATENT oFFlca.

ASSIGNOR T KNOX ENGINEERING GOVERNOR FOR TRACTOR ENGINES.

-Specication of Letters Patent.

Patented Mar. 14, 1922.

Application led September 25, 1919. Serial No. 326,373.

To all lwhom t may concern:

Be it known that I, CALVIN GLENN HART- Lnr, a citizen of the United States of America, and resident of Roanoke, in the county of Huntington and State of Indiana, have A invented certain new and useful Improvethe ends of a forkedl ments in Governors for Tractor Engines, of which theV following is a specification.

This invention relates to improvements in governors for tractor engines, and the object thereof is to provide an automatic governing device in conjunction with a controlling lever`for adjusting the governing' device and which will also serve as a manual control for the engine.

The object of the invention is accomplished by the construction illustrated in the accompanying drawings in which Fig. 1 is a side elevation of the invention supported in place on an engine body, artially broken away and in section; and ig. 2 is a detail view showing an oscillating shaft and levers mounted thereon. Having reference now to the various parts of the invention indicated by characters appearing upon the drawings:

1 is an engine body of known construction, and 2 1s a belt pulley of the usual type ordinarily used for driving the fan of the radiator (not shown), the pulley being fixed upon the front end of the engine crank-shaft 3. Upon the hub 4 of the pulley are oppositely positioned lugs 5 in which are plvotally supported. corresponding levers 6, each of which has upon its inner end a weight 7, the weights being coupled together at their ends b a tension spring 8. The outer ends oil the respective levers 6 bear against a ring 9 upon the adjacent side thereof, and the opposite side of the ring is adapted to bear against lever 10 that is fixed upon a shaft 11 mounted in a bracket 12 on the engine body, so that as the weights spread apart the shaft 11 is accordingly turned through the'medium of the levers 6, rin 9 and forked lever 10...

pon the shaft 11 is also fixed an arm 13 and to the outer end thereof is connected the throttle valve of a throttle rod 14 so arranged that the valve is closed to a more 'or less extent accordingly as the arm swings u wardly.

An mtermediate lever 15 is gxed on the (not Shown) of the engine, whlch 1s of the usual type, by means-l shaft .11 and an operating lever 16 is pivoted at its middle to a bracket 17 havin a sector 18 thereon. A rod 19 is connected to the lower end of the intermediate lever 15 and extends loosely through the lower end of the operating lever 16 and has a wing-nut 20 thereon against which the operating lever is adapted to bear and move therod in one direction. The rod being loose in the 4operating lever admits of its longitudinal movement in the lever in one direction and the wing-nut limits the movement of the rod in the opposite direction by coming into contact wlth the operating lever. By turning the wing-nut von the rod the stage at which its movement is limited may be adjustably fixed.

Tov the upper end of the intermediate lever 15 is secured one end of a tension spring 21, the other end of which is secured to an actuating rodr 22 that is secured at its opposite end to the upper part of the operating lever 16. vThe other end of the spring 21 is connected to the actuatin rod 22 by any suitable means, such as a lock 23. The'corre onding end of the rod 22 extends longitu inally through the spring 21 andtterminates with a hook 24 by means of which the expansion of the spring is limited in extent.

4In the operation of the invention, as the engine revolves the pulley 2, the weights 7 spread to a more or less extent according to the velocit thereof and the ring 9 is corresponding y moved rearwardly by the .consequent action of the levers 6 and the forked lever bearing against the opposite side of the ring is therefore actuated, causing the shaft 1l and arm 13 to oscillate, thus affecting the throttle-valve of the engine so that the speed of the engine is regulated. The intermediate lever 15 also is oscillated, which movement is resisted by the tension spring 21. By adjustably positioning the operating lever the forked lever 10 and arm 13 may be initially set so as to become affected by the movement of I the ring 9 at'any desired stage and thus the fuel admitted to the engine through the throttle -valve is reduced when the predetermined velocity is reached. By mani ulating the operating lever the throttlevalve is actuated irrespective of the behavior of the weighted evers in the pulley and thus the engine is manually controlled independently of the action of the automatic governing mechanism.

What I 'claim is 1. In combination with an engine including a throttle-rod and a governing mechanism including revolving weighted levers and ia bearing ring actuated by the levers, an oscillating shaft suitably mounted; a forked lever fixed on the shaft and having actuated relation with the ring; an arm iixed on the shaft having connection with the throttle-rod; an operatin sector therefor; an intermedlate member fixed on the shaft; a rod connectedto the lower end of the intermediate member and extending loosely through the lower end of the operating lever and having limiting means thereon to engage; the lever; a tension spring connected at one of its ends to the upper end of the intermediate member.;V

and a rod having connection with the-upper end of the' operating lever and also with Athe other end of the spring.

2. In a controllin means for engines having a throttle-ro weighted governor lever and lever opposite the connecting means; and a rod secured at one end to the operating lever opposite the connecting means and having fixed connection with the other end ,of which is connected to the intermediate 2 of the tension spring, said rod extending A through the tension. spring and terminating with a hook adapted to limitthe action of the spring. Y

In testimony whereof I aix my signature, in presence of two Witnesses.

C. .GLENN HARITLEY.

Witnesses: l

ARTHUR W. PARRY, MATILDA Mm'rmn.

Images