US1033976A - Agricultural tractor. - Google Patents

Description

A. El ZUCK.

AGRICULTURAL TRACTOR.

APPLIUATION FILED MAY z3, 190s.

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AGRICULTURAL TRACTOR. APPLIUATION FILED MAY 23, 1908'.

1,033,976, Patented July 3o, 1912.

2 SHEETS-SHEET 2.

IIIIIH WTNE'EEE'S y IN1/ENTER,

` provision of simple .AUGUST E. ZOCK',

OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ARCHIBALD B. CREPS, 0F MAUME, OHIO.

AGRICULTURAL TRACTOR.

Specification of Letters Patent.

Patented July 3G, 1912.

Applicatonled May 23, 1908. Serial No. 434,615.

To all w/tom t may concern Be it known that I, AUGUST E. Zoon, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Agricultural Tractor; and I debereby declare the following to be a full, clear, and exact description of the invention, such as will enable vothers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. l

My invention relates tomotor trucks, and particularly to those adapted for use as agricultural tractors, wherein the power is at times applied for propelling the machine and at other times for` operating another machine or apparatus. This invention is not, however, limited to such use, but may be used in any connect-ion for whlch It may be adapted or appropriate.

The object of myv invention 1s the provision of an improved and highly eiclent machine of the class, which is simple, strong and durable in its construction, easy of operation, and inexpensive ofk manufacture, thus enhancing its practicability and com-A mercial value.

A further object of my invention is the and improved means for controlling the lowering or raising of the push-bars and the simultaneous throwing of the crank-shaft to which they .are attached into or out of commission with the actuating mechanism, as the case may be.

A further very important object of my invention is the provision, in motor-trucks or otherv vehicles having front and rear drive wheels, of an improved lconnection between the steering-Wheels and the motor kjack-shaft, which will obviate the objections heretofore raised to the use of gear connections between such parts.

Further advantages of my invention as Well as the operation, construction and arrangement of the parts of the same are fully described in the following specifica tion, and a preferred embodiment of the same illustrated in the accompanying drawings, in which,

Figure 1 is a plan view of the machine embodying my invention with the body removed. Fig. 2 is a front view-thereof. Fig.

3 is a longitudinal section of the same. Fig. 4 is a face viewof the guide-plate for the push-bars. Figs. 5 and 6 are plan and side details of the mechanism controlling the raising and lowering of the push-bars and the throwing of the same into or out of connection with the driving means, and Fig. 7 is an enlarged view of the front end of the vehicle.

Referring to the drawings, X designates the frame of the machine on which the body or platform is mounted. This frame is supported by front and rea-r axles Y and Z and carried by Wheels Z, the front pair of which l are mount-ed on the customary plvoted studs or spindles, connected together in the usual manner. The arrangement is preferably such that all four Wheels act as drivers, the rear Wheels being shown as chain driven and the front wheels as driven by a form of pin gearing',l which latter forms a part of my present invention. In addition to these drives a push-bar drive is also provided, which will be hereinafter more fully described.

The power shaft of vthe machine is designated at H and may be driven by any suitable engine. This shaft is mounted in suitable bearings lengthwise of the frame at the middle thereof, and is provided with a shifty ing-gear C by means of which either the opere-ting mechanism or the propelling mechanism may be driven. The former has a gear E on a shaft I, whichshaft is mounted in suitable bearings above the shaft H and carries a pulley F to which a belt may be applied or from which power may be communicated in any other suitable manner for driving any kind of machinery. A shifting of the gear C in one direction on its shaft moves' it into mesh with the gear E.

The propelling mechanism is driven through a gear' D with which the gear C may engage by shifting the seme in the opposite direction to that required to throw it into m vh with the gear E. The gear D is mounte on a longitudinal shaft H2 which has universal joints 3, and which extends forwardly and has connection with the jackshaft 4 of the front driving mechanism through the medium of a suitable differential mechanism T. The iack-shaft 4 is pro vided at its ends with pinions Q which engage with pinions S mounted on the upwardly extending ends of the pivots of the front or steering wheel` knuckles, and the pinions lS mesh with largergears M secured to the inner sides of' the front wheels Z.

The driving `of the front" or steering wheels of vehicles by the use o ftwo initer.A

pinions anda bevel gear or by three bevel gears of differentl sizes has heretofore been found impractical, dueft'o the fact that it is` mechanically impossible to drive a bevel thev use of gears of this character inzwheel driving mechanisms, I have adopted'gears and p mions having ball-end peg-cogs or teeth which ermit a series of gears corresponding to evelv or miter gears of anysize to perfectly mesh* together and also facilitate -a turning of the wheel-gear 'around the axis of the meshing gear when makingl a' turn.V A further very important feature incident tothe use of gears of this type in' drivingfmechanism forvehicles is that any vmud gathering between the teeth thereof is.

easily forced out bythe action of the meshing teeth, whereas with'the" use of gears of. the bevel o'r miter type, mud willV continue to accumulate between the teeth ofthe same and-cause the 'meshing gears to spread .or crowd away from each other. n

The rear wheels aredriven b means of a beveled gear Y on the rear en of the shaft H2, vwhich meshes with and operates' a beveled gear and differential gear V on a jack or cross-shaft R, which has at I'its' opposite ends sprockets W, v which drive large sprockets W2 on the rear wheels by means of sprocket-chains W2. The shaft R also has a spur-gear W, which, through an intermediate shifting-pinion L, on a stub-shaft P, drives a ear N on one end of acrankshaft J lhis crank-shaft is mounted transversely of the frame and is shown in the present instance as havin four cranks set 0n quarters to each of Whic the forward end of a push-bar A connects. Each of these push-bars is rovided at its foot or rear A,end with a conical block A which has its s'mall end forward and a spur A2 projecting centrally from its rear or large end, whichspur has ,its rear or pointed end preferably curved downwardly, asshown, to facilitate a firm engagement of the same with the surface over which it is traveling when in action.` The particular shape of the blocks A not only enables such blocks to work well on soft or blunt pushingsurface, but facilitates push-bars are lowered -to ground, by giving ia .largea an easy and quick withdrawal of such blocks from soft ground, due to the wedge forma-f ...tion of the blocks forcingfthe same quickly to. the surface asl thev push-bars advance.

This form of blocks .also prevents a gathering and clogging oflsoil upon the same. v

The push-bars Atrailunde'r the rear of the machine and work through vertically elongated opening'l's'G/ in a guide-plate Gr, which is suspended beneath the machine -transversely thereof byv arms. Gr2 connected to theshaft J and by hangers GB connected to arms G* projecting rearwardly from a` cross-shaft gfwhich 'has its lends journaled inthe frame to efecta raising or lowering of the guide-plate and push-bars by an-oscillation of the vhand lever P2, which llever has connectionwith` such shaft throughsv rod p 'and ar'mwip" on said'shaft asbest is rocked ,due to an army. onsidfilatter shaft and a link or rod rfc'oinmunieating motion to the bell-crankedi'shiftiig lever Pz, Ywhich'is fulcrumed Yto the frame, 't and basan end'n'hngagement with; thefhub of the pinO'nL, asshown.-" "The connection between the shaft gfandpinion L ris such thatV the crank-shaft -J is thrown into gear with the drivingv mechanism when the operative position,

and vice versa.- w j i I wish it understol j thatv my invention is as snchlimitati'ons-are s' ecified in 4the claim. Having thus describe my inventinLwhat I claim 4as new and desire to secure by1Letters Patent, is,-l n

vIn an a icultural tractor, the combination of a l the same, a ropellin mechanism supported by -said rame and includin a pair ofV inter-geared-driven shafts, flexible connections between one of the 'driven shafts and the wheels on one axle, a gear carried byl the other driven shaft, a drive shaft, a gear slidable on said drive shaft for engagement with and disengagement from the firstnamed gear, nieans'for shift-ing the slidable gear, a shaft journaled in said fra-Ineand arranged above 'andpiiallel with the drive shaft, and a gear carried by the upper shaft and -arranged for engagement with said slidable gear when thellatter is disengaged vshown in Figsz 5 Zand 6. The pinicn-Lis also shifted its shaft whenv the lshafteg 'notlimited tonany specific construction or ,arrangement of the parts except-in so far ame, wheeled axles supporting' In testimony vwhereof II aixmy signa- I JOHN A. BoMuEAk-tr, `Mormon E. MILLER.

ture, in presence of two wtness.

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