US481219A - baker - Google Patents

Description

(No Model.) 5 Sheets-Sheet 1.

' W. R. BAKER.

MOWER.

110.481,21). .Patented Aug. 23, 1892.

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W. R. BAKER. MOWER.

110,481,219. Patented Aug. 23,1892.

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W'. R. BAKER.

MWER.

No. 481,219. Patented Aug. 23. 1892.

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W. R. BAKER..

.MOWEIL Patented Aug. v23, 1892.

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UNITED STATES ATENT OFFICE.

WILLIAM R. BAKER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE MCCORMICK HARVESTING MACHINE COMPANY, OF SAME PLACE.

NIOWER.

SPECIFICATION forming part of Letters Patent No. 481,219, dated August 23,1892.

Application filed October 4, 1888. Serial No. 287,168. (No model.)

To all whom it may concern:

Be it known that l, WILLIAM R. BAKER, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im provementsin Mowers, of which the following is a specication.

My invention relates, primarily, to two- Wheeled side-cut hinge-bar mowers; and it xo consists in combining with the floating gearframe in a side-cut mower a finger-bar universally jointed to the end of the crank-shaft sleeve at the grain side of the machine and a guide-brace from the finger-bar to the rear I5 of said joint, playing against said sleeve; in

combining with the fioating gear-frame a iinger-bar hinged thereto, a lifting-lever for raising the outer end of said finger-bar, and a lever-lock between the floating gear-frame and 2o draft-frame, whereby said gear-frame will be held down, holding down also the shoe when raising the outer end of the finger-bar, and in various other combinations and details of construction hereinafter described and claimed.

In the drawings, Figure 1 is a perspective View of a machine embodying my invention and showing one mode of applying a tilting lever to the other features thereof. Fig. 2 is a top plan view of the machine shown in the 3o preceding figure, the outer end of the fingerbar being broken away. Fig. 3 is a vertical section through the said machine in a plane v parallel to t-he draft-tongue and on the grass side of said tongue. Figs. 4, 5, and 6 are en- 3 5 larged details of the clutch for throwing the machinery into. action. Fig. 7 is an enlarged detail of the lever-lock to prevent the iioating frame from rising; Fig. S, a section through the floating frame longitudinally of the bearing 4o for the crank-shaft; Fig. 9, a top plan view of a portion of the frame with the inner end of the finger-bar, showing my preferred form of applying a tilting lever; Fig. 10, a section through the parts shown in the preceding ligure, longitudinally and centrally of the bearing for the crank-shaft; and Figs. ll, 12, and

13 are details of the connection between the inner shoe and the said tiltinglever,whereby the finger-bar is left free to rock upon its joint 5o with the outer end of the crank-shaft sleeve.

A represents the main wheel at the stubble side' of the mower, and A that one at the grass side. B is the main axle connected with said wheels by backing-ratchets,the housings l) of which are shown, so that it may be constantly driven in a forward direction either by both wheels or by the one which is moving forward fastest. Upon this axle is mounted the floating main frame C, having a long sleeve-bearing C upon the main axle, a rear- 6o wardly-projecting gear-case C2 adjacent to the inner side of the main wheel on the grass side of the machine, and a forwardly-projecting sleeve C3, which incloses and affords the bearings for the cutter crank-shaft and which may be strengthened by flanges c. The extreme forward end of this sleeve is formed into a ball, or is provided with a spheroidal enlargement c to afford one member of the connection with the finger-bar, as presently 7o explained. Projecting rearwardly from the axle-sleeve of such floating frame are brackets c2, two of which are located near the center of .said sleeve and, if anything, nearer to the grass-wheel than to the stubble-wheel, 75. and receive a pivot bolt c3, whereby the shackle or shackles d from the draft-tongue D are `united thereto. rIhe third rearwardlyprojecting bracket c2 from the sleeve receives the rear bent end of a tongue-hound orbrace- 8o rod D', while from near the extreme rear end of the tongue rises the seat-standard D2, bearing at its upper end a seat D3, which is of the usual construction.

With the construction thus far described it will be evident that the weight of the draft tongue or frame of the seat, and of the driver t occupying said seat will be thrown upon the gear-frame to the rear of the axle and will tend to rock that frame about the axle as a 9o pivot, thereby lifting the-forward end, and with it the shoe pivoted to the end of the crank-shaft sleeve; but since such lifting agency would be undesirable when it is del sired to raise the outer end of the finger-bar, as the power for the latter purpose would evidently be first expended in liftingthe front end of the floating gear-frame, I arrange another lug e upon the axle-sleeve, this time, v however, projecting in advance of the axle roo adjacent to the draft-tongue, but beneath it, and pivot to said draft-tongue a small foot-le- Ver E, the lower arm e of which is of sufficient length to come upon the inclined Lipper face of said lug and be wedged thereagainst by the pressure of the drivers foot upon the upper arm, thus locking the gear-frame down against the stress of the lifting-lever and causing the Whole force of the latter to be expended in raising the nger-bar.

To the draft-tongue is secured a plate F, projecting each side thereof and having at the stubble end a pivot-pin f, upon which hinges a draft-lever F', passing through the guideslotf in a turned-up flange at the opposite end of said plate and having outside of the guide-slot a hook f2, over which takes an eye from the front end of a link F2, swiveled at its rear end to the floating gear-frame in advance of the main axle. The hammer-strap F3 for the doubletree is secured to this lever, so that the draft of the team tends to raise the gear-traine and ease it on the ground unless it is held down by the foot-lock.

Gis the inside slice, made of sufficient width to afford a guard g beneath the crank-disk G', so that said disk and its wrist-pin g may be shielded from dbris, and this shoe has further a socket g2 to partly embrace the ball at the front end of the crank-shaft sleeve, the joint with said ball being completed by the socketed cap g3, closing over said ball and bolted to the shoe, thus giving the shoe and the finger-bar G2, rigidly united thereto,a direct connection with the iioating gear-frame by a single joint that allows the outer end of the finger-bar to be raised or the entire bar to be tilted on its longitudinal axis. Behind this universal joint a strong spur or bracket G3 projects from the shoe parallel with but beneath the crank-shaft sleeve, and at its rear end receives a vertical elongated guide yoke or loop G4, which embraces said sleeve snugly between its sides, but is of sufiicient length to afford play up and down within all reasonable limits of the tilting movement ot' the finger-bar. This guide-loop is intended to hold the iingerbar rigidly at about right angles with the crank-shaft sleeve-that is to say, in position for moving-and for this purpose it may be either rigid with the heel projection from the inside shoe, asin Figs. l to 3, where itis shown as directly bolted to the rear end of said heel projection, or it may be in the shape of a link connected to the end of said heel projection by a sort of journal-bearing, as in Figs. 9 to 13, where it is lettered GX for the purpose of distinction from the other. Vith the first construction of this steadying-guide the tilting lever I will be pivoted to a suitable support t', rising` from the floating gearframe, and Will be united bya link I with the forward part of the shoe, this link having a universal joint t" with said shoe to allow for the compound movement of the fingerbar, but its union with the lever being sufficiently eifected by means of an ordinary pivotjoint ft2, thus enabling the driver by moving the lever up or down to positively raise or depress the points of the guard-fingers without interfering With the lifting adjustment, and by throwing the lever into the upwardly-set ratchet to secure said fingers against rising beyond a given position, while whenever the lifting-lever is operated the `guide-loop rocks about the cylindrical exterior of the crank-shaft sleeve as a bearing. In the second construction, however, the rear end of the heel projection from the inside shoe is provided with an annular or frustumshaped bearing K of sufficient diameter to completely encircle the crank-shaft sleeve and permit play up and down to the full length of the guide-loop-that is, its diameter will be at least, and should be a little more than, the effective longitudinal diameter of the loop. Its axis also should be a continuation of an axisthrough the ball-bearing. The guide-loop has conversely an annular or frustum-shaped journal K, set out from its side by Webs 7a and fitting snugly and evenly into the bearing on the heel extension, thus permitting the finger-bar to be rocked about its ball-bearing and the journal from the guide-loop when being lifted, while at the same time responding to the up-and-down adjustment of said loop.

To prevent the escape of the guide-loop and its journal from the bearing, keepers K2 are bolted fast to the iioating gear-frame, above and beneath the crank-shaft sleeve and di` rectly in rear of the guide-loop and embracing it, and thereby serving not only for the primary purpose of preventing its escape, but also, incidentally, to stay it against lateral rotation With the bearing when the iinger-bar is raised.

The weight-arm of the tilting lever, here IOO lettered IX, is pivoted to ears from the upper end of the guide-loop, While the lever itself rocks upon a pivot 71X from a segment-bracket L, secured to the frame. The curved periphery l of this bracket is notched at intervals to receive the pawl or pivoted detent Z of the lever, and at the front end it is provided with a stop Z2 for the lever arranged at the proper point to determine the upward limit of motion that shall be allowed the guard-fingers. Beyond this stop there is a notch Z3 for the nose of the detent, so that the lever may be locked up close against the stop when set thereagainst.

It will be observed that in the first-described construction the tilting lever acts upon the shoe in advance of the con nection between the latter and the front end of the iioating gearframe, and its handle must be elevated in order to depress the guard-fingers and depressed to elevate them, while in the second construction the tilting lever acts upon the heel projection from the shoe in rear of the universal joint between it and the crankshaft sleeve, and therefore the lever must be depressed to depress the guard-iin gers and must be raised to elevate them.

IIO

M is the lifting-lever, whereby the divider end of the finger-bar is raised for transportation. It is pivoted to a segment-rack m on the draft-frame--that is, in the present instance, alongside the tongue-and at its lower end has a chain-segment m', as usual, receiving a chain h which is laid beneath a pulley m2, journaled in the upper end of the stirrup m3, which latter is bolted to a diagonal brace-bar M2, that connects the front end of the floating gear-frame adjacentto the crankshaft sleeve with a lug m4 from the mainv axle sleeve adjacent to the stubble-wheel,

thereby receiving any lateral thrust and consequent strain upon said crank-shaft sleeve. From the pulley this chain passes to and is connected with the upper end of va standard M3, rising from the heel end of the finger-bar ySO or from the rear outside corner of the shoe, where said finger-bar overlaps. the shoe, or from other suitable point, so that by depressing the lifting-lever the divider end of the finger-bar will be raised. Theupper end of the just-mentioned lifting-standard is also connected by a strong coiled spring N with a lug or hook n at the rear end of the bracebar, which may be considered, as it is in fact, a component part of the iioating frame. Thus this spring will constantly tend to lift or lighten the outer or divider end of the fingerbar.

The driving-gear is as follows: A spur-gear O, surrounded by the usual guard O', is keyed fast to the main axle between the oating gear-frame and the carrying-wheel at the grass side of the machine. This meshes with and drives the pinion P, having clutch-face p, and running loosely upon a short axle P', extending from side to side of the gear-case in the iioating gear-frame to the rear of the main axle and advisably pinned to said case. Upon this axle is also loosely mounted a bevel gear-wheel Q, having a long sleeve-hub q,

which at one end abuts against the hub of the pinion and at the other against the side of the gear-case. Upon the hub-sleeve slides a clutch R, secured to said sleeve by means of a feather r, so that the two must turn together. This clutch has a peripheral flange fr', over which takes a semicircular saddle R', grooved to a sufficient depth to embrace the iiange. From the horns of the saddle project trunnions r2, with which engage the slotted forks s of the yoke-lever S, pivoted to the gear-frame by means of a long bolt S', that receives above the lever and beneath its head a coiled spring s', against which the leverhandle can be raised, the slots in the ends of its forks being of sufficient length to prevent disengagement from the trunnions on the saddle. Such movement of the lever permits the pin s2 near its handle to be. withdrawn from either one of two or more slots or perforations s3 in a flange at the rear of the gear-case and the lever swungI to bring the clutch into engagement with the pinion, thereby starting the bevel-gear, or to throw it out of engagement with said pinion, stopping the machine. The bevel-gear meshes directly with a pinion T on `=the rear end of the cutter crank-shaft T', which runs forward beneath 'the axle through its sleeve on the gear-frame and at its front end carries the before-mentioned crank-disk and its wrist-pin, which latter will be of such shape as to afford a ball-joint with the adjacent end of the short pitman U, connecting it with the heel of the cutter-bar. Should a ball-joint at this point not be used, some other means must be adopted to allow of both the lifting and tilting or rocking movement of the finger-bar without twisting the pitman.

I do not intend to limit myself to the precise construction herein described, as it is evident it may be departed from in details without avoiding the spirit of myinventionas, for instance, the guide for the heel of the inner shoe may differ from those described, the brace for the forwardly-extending arm of the gear-frame be otherwise supplied than in the specific instance shown, and other minor alterations be made.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,is j

l. The combination, substantially as hereinbefore set forth, of the main axle, the two carrying-wheels, the floating gear-frame having gear-case and forwardly-extending crankshaft sleeve at the grass side of the machine, the finger-bar ball jointed directly to the end of said sleeve, and the vertical guide-brace connected with the heel extension of said finger-bar and arranged to play against said sleeve in rear of the shoe.

2. The combination, substantially as hereinbefore set forth, of the iioating gear-frame, the finger-bar directly hinged to the crankshaft sleeve at the grass side of the machine by a universal joint, the heel extension from the inner shoe, the guide-loop from said heel extension embracing said sleeve, and the tiltingor rocking lever.

3. The combination, substantially as hereinbefore set forth, of the iioating gear-frame having the crank-shaft sleeve at the grass side, the finger-bar directly hinged to said sleeve by a universal joint, the heel extension from the inner shoe beneath said sleeve, the annular bearing for said extension embracing the sleeve, and the guide-loop having an annular journal entering said bearing.

et. The combination, substantially as hereinbefore set forth, of the iioating gear-frame having the crank-shaft sleeve at the grass side, the finger-bar directly hinged to said sleeve by a universal joint, the heel extension from the inner shoe beneath said sleeve, the annular bearing from the extension embracing the sleeve, the guide-loop having an annular journal entering said bearing, and the keepers from the iioating gear-frame retaining said loop and its journal in position.

5. The combination, substantially as here- IOO IIO

ISO

inbefore set forth, of the ioating gear-frame having a crank-shaft sleeve at the grass side, the finger-bar directly hinged to said sleeve by a universal joint, the heel extension from the inner shoe beneath said sleeve, the annular bearing from said heel extension embracing the sleeve, the guide-loop having an annular journal entering said bearing, and the tilting lever pivoted to the frame and also the 1o guide-loop.

6. The combination, substantially as hereinbefore set forth, in a side-eut mower, ot' the floating gear-frame, the finger-bar hinged directly thereto at the grass side of the machine, the standard from the heel of the iinger-bar, the coiled spring connecting said standard with the floating frame, and the lifting-lever Connected with said standard. VILLIAM R. BAKER. Witnesses:

J As. Il. HASKINS, HENRY B. UTLEY.

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