US1542839A - Governor for fordson tractors - Google Patents

Description

F. M. REEVES GOVERNOR F'OR FORDSON TRAGTORS Filed April' 4, 1921 Ju'ne 23, 19 25.

' 41H rlawrlflm Patented June 23,1925.

UNITED STATES V FRANCIS M. REEVES, OF BOGARD, MISSOURI.

GOVERNOR FOR ronn'son TRACTOBS.

Application filed Aprils, 1921. Serial No. 458,402.

To all whom it may concern:

Be it known that I, FRANCIS M. Rnnvns, a citizen of the United States, residing at Bogard, in the county of Carroll and State of Missouri, have invented certain new and useful- Improvements in Governors for Fordson Tractors, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to governors, and particularly to governors designed for use on Fordson tractors for the purpose of controlling the speed of the tractor.

Thegeneral object of my invention is to provide a governor for Fordson tractors which will do away with the necessity of an operator to control the tractor when used for thrashing and other power purposes.

And a further object is to provide a tractor of this character whereby the governor may be caused to hold the engine at any desired speed within its range.

Another object is to provide a governor mechanism of this character wherein two separate and independent means are provided for controlling 'what may be termed the normal speed of the tractor engine.

Still another object is to provide a governor of this character which is very simple and which can be readily applied to Fordson tractors as they stand with practically no change in the parts but merely a substitution of certain parts for certain other parts now found upon the Fordson tractor.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary elevation of a portion of a Fordson tractor showing my governing device applied thereto;

Figure 2 is a longitudinal sectional view of the governing device, the throttle valve and its shaft being shown diagrammatically and the bell crank lever 35 being illustrated at right angles to its normal plane;

Figure 3 is an elevation of-the casting of the throttle shaft;

Figure 4 is an elevation of the manually operable means for operating the throttle shaft;

Figure 5 rod 41; I

Figure 6 is an elevation of the guide for is an elevation of the catch for rod 29.

Referring to these drawings, 10 desigsupported at one end in a bracket 13, which bracket is angular in form, as illustrated in Figure 2, and at its upper end is later-.

ally angled or bent, as at 14, and is attached to the water pipe bolt a on the Fordson tractor. This angular bracket 13 is formed with a bearing for the extremity of the governor stem and with an aperture for the attachment of a brace or stay rod 15.

Mounted upon the stem is a sliding sleeve 16 and also mounted upon the stem for rotation therewith is a disk 17 carrying a housing 18 or body which entirely surrounds the stem and is designed to contain oil. Upon the stem are mounted the bushings 21 over one of which is applied the band wheel 22 integral with housing 18, taking power by means of a belt or band from the fan shaft or fan pulley of the tractor. Carried upon the disk 17 for rotation with the pulley 22 are the angular governor arms '23 having weights at their outer ends, these governor stem 10, the small angular arms 24 of the governor arms 23 engaging beneath a head 25 on the sliding sleeve 16 so that as the governor arms are rotated they will tend to force this sleeve rearward. This outward movement of the governor arms is resisted by a coil spring 27* which surrounds the sleeve 16 and bears at one end against the flange or head 25 of the sleeve 16 and at the other end bears against the disk or yoke 26 which is bolted to the head 17.

Projecting into the end of the sleeve'16 is the longitudinally shiftable rod 27, and disposed within the sleeve 16 isa ball 28 forming a ball thrust bearing and against which this rod 27 bears. The rod 27 is inserted within one end of a sleeve section 30 which is tubular for its entire length, and has a tubular branch 31 adjacent one end of the sleeve. A rod section 29 extends into the end of the sleeve and constitutes an abutment, as at 32. Disposed within this tubular portion is a plurality of balls 33 which also extend into the branch 31. The outer end of this branch" 31 is interiorly screwthreaded for engagement by an adjusting screw or plunger 34 having an arm 34:. When this screw 34 is turned in one direction, it will act to force the balls contained arms normally extending parallel to the As this connecting rod (formed of the sections 16, 27, and 29) is operatively con- I nected to the throttle valve of the tractor,

it is obvious that by lengthening or shortening this sectional connecting rod, the normal position of the throttle valve may be changed or adjusted so as to control the normal speed of the engine.

The rod 29 at its extremity is angularly bent for connection with a bell crank lever 35 ivoted at 36 upon a supporting plate or racket 37 mounted upon engine head studs 38. The arms of the bell crank lever may be disposed in the same plane or in parallel planes, but the construction is in effect a bell crank lever. The connecting rod, as before explained, connects with one arm 35 of the bell crank lever and this same arm of the bell crank lever is perforated for engagement by the extremity of a controlling rod 39 which is connected to a contractile spring 40, which in turn'is connected to a toothed rod 41 having a handle 42 and operating over a latch plate 43 having a notch to receive the toothed rod 41, which latch plate fastens to the water pipe bolt 1). The rod 29 is guided by a guide plate 44 (see Figure 1) which is held by the water pipe bolt 0. The arm 45 of the bell crank lever which extends at right angles to the arm 35 has a ball joint 46 at its extremity, and connected to this is a link 47 whereby the controlling device is operatively connected to the throttle.

The throttle rod or shaft 48 which carries the throttle 49 is the shaft ordinarily found on Fordson tractors for this purpose, and mounted upon this shaft is an arm 50 perforated at its extremity for engagement y the link 47. This arm 50 has extending in divergent relation from it an arm 51 which constitutes a stop limiting the wide open position of the throttle in the usual manner, and an arm 52 having an idling screw 53 which constitutes a stop limiting the closing movement of the throttle when the engine is idling. The arms 50, 51 and 52 are all made from one piece of steel. Upon the ordinary throttle rod or shaft of a F ordson tractor there is a fork which is used for controlling the throttle valve and which is provided with stops for limiting the movement of the throttle in opposite directions, but in place of this fork I provide the member 54. It will be seen that there are two means which maybe used for adjusting the normal rate of speed of the engine, namely by forcing the balls 33 into the tubular section 30 and by shifting the speed controlling rod 39. This speed controlling rod is used for making quick adjustments or changes in the speed of the enrequired normal speed. In the operation of this particular form of thrasher it may be necessary at times to increase or decrease the'speed, and in that case this is effected by increasing or decreasing the tension of the spring 40 by means of the toothed rod 41, the increasing of the tension of the spring obviously acting to-resist a closing of the throttle through the action of the governor and permitting the engine to run at a higher speed before the throttle controlling mechanism will commence to act.

Oil is to be supplied within the casing or housing 18 through an oil hole provided with a plug 55. The device is entirely automatic in its action, can be easily regulated, as will be seen, so as to readily control the speed of the engine under all circumstances, and provide, as before remarked, for setting the governor so as to permit the engine to have a normal speed-,- while also permitting the ready adjustment of the governor to decrease the speed. The mechanism will permit the engine to idle or not as required. It will be seen, of course, that as the engine speeds up, the governor automatically closes the throttle and as more load is applied the governor opens the throttle so as to keep up the proper speed. This governor is particularly adapted for a. For son tractor or like tractor when used as a power plant for belt work and entirely does away with the necessity of an operator being more or less constantly occupied in controlling the speed of the tractor. It may also, however, be used with the tractor when hauling loads and in this case permits the operator to ride upon the binder, harvester or other drawn implement, controlling the steering of the tractor through instrumentalities not forming part of this invention, the speed of the tractor being controlled,-as before remarked, by the governor and doing away with the necessity of an operator riding on the tractor itself to control the speed. Of course, the throttle may be operated by means of the usual throttle controlling rod having a head 54 on one end, this head having a pin 55 which engages against one edge of the arm 50, as illustrated in Figure 3.

I claim 1. The combination with a tractor having an engine and a throttle valve, of a supporting stem, a tubular member rotatably mounted upon the same and having means at one -means for tensioning the same, said lever being operatively connected to the throttle valve, a rod section connected at oneend to said lever and having telescopic engagement with the first named rod section, manually adjustable means for shifting said last named sleeve upon the first named rod section to thereby control the adjustment of the throttle valve and the speed of the engine, and manually adjustable means for adjusting the tension of the spring tensioning means.

2. The combination with a tractor having an engine and a throttle valve, of a supportend whereby it may ing stem, a tubular member rotatably mounted upon the stem and having means at one be rotated, a centrifugal governor carried by the other end of the tubular member, said stem projecting beyond the centrifugal governor, a sleeve into one end of which the stem projects, a rod section extending into the other end of said sleeve, a thrust bearing disposed between that end of the rod section adjacent the stem and said sleeve, a spring surrounding the sleeve and bearing against that end adjacent the governor, the governor having arms formedwith portions engaging between the sleeve and the rotatable member to urge the sleeve longitudinally against the action of said spring as the governor arms are shifted outward, a lever operatively connected with the throttle valve, a rod section connected at one end to said lever and having telescopic engagement with the first named rod section,

and manually adjustable means for shifting said last named rod section upon the first named rod section to thereby control the ad .justment of the throttlevalve and the speed 55 of the engine.

In testimony whereof I hereunto aflixmy signature.

FRANCIS M, REEVES.

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