US343147A - baker - Google Patents

Description

(No Model.) 1 2 sheets-sheet 1. W. R. BAKER...

HARVESTER. No. 343,147. Patented June' 1, 1886.

(No Model.) 2 shetsneet 2.

W. R. BAKER.. n

HARVESTER. No. 343,147. Patented June 1, 1886.

WITNESSES INVENTR WH? i William akwr.'

` By lbf/s Attorno:

' TINTTsn STATES APATENT Tries..

VILLIAM It. BAKER, O F CHICAGO, ILLINOIS, ASSIGNOR TO THE MCCORMICK i HARVESTING MACHINE COMPANY, OE SAME PLACE.

HARVESTER.

SPECFICATION forming part of Letters Patent No. 343,147, dated June 1, 1886.

Application filed August 29, 1884. Serial No. 141,735. (No model.) Patented in England July 19, 1884, No. 10,330.

To all whom it may concern:

Be it known that LWILLIAM R. BAKER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and usei'ul Improvements in Harvesters, of which the following` is a specification.

My invention relates in part to a novel arrangement of the sway-bar in harvesters of the type known as Marsh as regards its location in such harvestcrs, in part to a new and improved construction of the sway-bar itself, and in part to certain modifications in the harvester-frame attendant upon the change in location of the sway-bar.

Sway-bars have been formerly carried through or beneath the harvester-platform and connected with the sickle at the middle of the length of said sickle. This either involved cutting through and weakening the front and rear sills for the admission of the sway-bar to the cutter-bar or required the sway-bar at its forward end to make connection with the sickle by a bend or crank, which was easily broken by the heavy labor imposed upon it. They have also been placed parallel with and close to the divider-board, which involved an unnecessarily long and much exposed pitman. Instead of either of these arrangements, in my present invention the sway-bar is carried beneath the elevator, alongside of the main wheel,and between said wheel and the ascending side of the elevatorframe, and, being pivoted nearly opposite the axle of the main wheel, is driven by a pitlnan from a crank-shaft on the outer side of said wheel at the rear of the machine. The heel of the cutter-bar or sickle is extended so as directly connect with the front end of the swaybar. Preferably the sway-bar is inclined, bringing its rear end just above the rear sill of the elevator-frame, while the front end extends beneath the front sill of said frame, which overlies the front sill or timber of the platform-frame. The pivot of the sway -bar is therefore made slightly compensatory, as well for this reason as because the rear end ofthe sway-bar where it connects with the pitman is intended to be suspended by a pendulum from the elevator-frame, to avoid the thumping which would otherwise ensue from the action of the pitman.

Instead of constructing this sway-bar of Wood, as usual, it is'made of two bars of steel, bent and relatively inverted to form trusses, braced at the center by a king-block or stretcher of malleable iron, which affords the pivot-journal, and having their ends connected by other blocks o r caps, one of which serves to unite the sway-bar with the heel of the sickle, and the other for the attachment of the pitman and pendulum. A very light and. strong sway-bar is thus secured.

In the drawings, Figure 1 is a plan View of the sway-bar constructed in accordance with my invention; Fig. 2, a side elevation thereof; Fig. 3, a top plan view of a harvester with the sway-bar arranged according to my invention, a portion of the elevator-frame being removed to expose said bar and the gearing by which it is driven; Eig. 4, a rear, and Fig. 5 a front, elevation Iof said harvester; and Fig. 6 is a transverse section through the harvester between the main wheel and the swaybar, as indicated by a correspondingly-numbered line in one of the preceding figures.

A is the front, and B the rear, sill of the harvester.v These, as stated in the preamble, have usually been mortised or slotted midway of the length of the platform to receive the sway-bar, extending through them from rear to front, and there connected with the cutter-bar; but herein they are made of uniform thickness and strength throughout .their length.

C is the main wheel, mounted in suitable standards in the lateral bars of the wheelframe beneath the elevator, and of course, although not so shown, having provisions for its up-and-down adjustment to vary the height of the harvester. The front platform-sill extends to near the main wheel, and is secured inside the ascending portion of the elevator to two cross-timbers, the rst of which, D, forms the inner elevator-sill, and the second, D, the inner lateral bar of the wheel-frame. The front sill of the elevator-frame, as usual in machines built by the McCormick Harvesting Machine Company for some time past, enters at its inner 'end between the platform-sill and the inner elevator-sill, and is secured to them by the same bolt which serves to unite the two, as will presently appear. From this junction with the sills it extends diagonally outward and forward beyond the main wheel,\,vhere it is bolted to and supports the front end of the outside elevator-sill, D2, which also forms the outer lateral bar of the wheel-frame. The rear platform-sill extends beneath the two inner timbers, D and D, and terminates with the latter, supporting the rear elevator-sill, by a lap-joint therewith, beneath these two timbers, and being united with said sill by bolts passing, respectively, through the timbers and the sills, and the rear elevator-sill supports, in the usual manner, the outside sill of its frame. rIhe angleiron finger-bar E is carried the whole length of the front platform-sill, and its lower web secured thereto at frequent intervals, and is bolted by its upper web at two points to the oblique front sill of the elevatorframe-at the inner point by a bolt-passing through the inside sill of said frame, as well as the oblique sill, and thus serving to unite the two to the platform-sill, and at the outer point by a second bolt passing through the inner lateral bar of the wheel-frame, and in like manner uniting the three sills at this point. By this means an unusually strong connection is made between the front platformsill and the elevator-frame, and the platformsill itself is greatly strengthened. The extended angle-iron may also be beneficially used where the front elevator-sill is not obliquely set.

If the sway-bar should be allowed to occupy its usual position, or `if the sickle should be driven by a crank and pitman at the front of the machine, the rear platform and elevatorsills and the front platform-sill, with its fingerbar, and oblique sill of the main frame may,

lie in contact at the points where they are united, and the advantage of extending the angle-iron and uniting the frame-work in the manner just described will still be secured; but for the purpose of bringing the sway-bar within the space inclosed between the ascending side of the elevator and the main wheel, I find it advisable to separate them at their point of union by spacing-blocks a, which lift the front and rear elevator-sills from the front and rear platform-sills and the linger-bar on the former, and the fastening-bolts will therefore pass through these spacing-blocks in uniting the parts together.

In order to support the sway-bar in this new position, the two timbers D and D are connected at about the middle of 'theirlength by a metal bridge, F, which is bolted to their under sides, and has a pivot-pin, f, at or near its center, which supports and forms a fulcrum for said sway-bar, the latter being connected at its front end with the heel of the cutter-bar or sickle for that purpose lengthened, or with a suitable head, f', rigidly aixed to said heel, and at its rear end extending outside ofthe rear elevator-sill, where it is ball-jointed to a pitman, G, reciprocated by a crank, g, on a shaft, g', outside of and parallel with and driven by the main wheel. A sprocket-wheel, g2, or other suitable gear on this shaft enables it to impart motion to other parts of the harvester and to the binder, as well as to the sway-bar, in the usual manner.

As already intimated, the sway-bar, although it might be laid horizontally and project at the rear end through the opening left between the spacing-blocks which lie between the rear platform-sill and the rear elevatorsill, and serve to lift the latter into the same plane with the oblique front sill, is advisedly inclined, so as to lift it above said rear elevator-sill. This is mainly to bring it in line with the driving-shaft supported above the latter sill, and thus avoid as much as possible any angular thrust of the pitman. To further ease the action of the pitman upon said bar its rear end is supported by a pendulum, I, pivoted at i to the rear inner elevator-strut or other feasible support. This relieves the thumping ordinarily attendant upon the action of the pitman, and more noticeable where it is so greatly shortened as here.

The arc described by the pitman will canse a scarcely-appreciable deflection of the swaybar; but-to compensate for this, as well as for its inclined position, it may be allowed a little slip longitudinally of its pivot, or other provisions adopted whereby its play at the front end may coincide with the right line traveled by the heel of the cutter-bar. Howevervhen the elasticity of the latter is sufficient, such pivotal compensation may be dispensed with.

The sway-bar K, constituting an additional feature of this improvement, is composed of two light steel bars, k, bent and relatively inverted, as shown, to form trusses. A kingblock, L, of malleable iron or other suitable metal, spaces them at their center and affords the pivotjonrnal Z, while at their converging ends they enter seats in and are bolted to other blocks, of which the block M at the front end has a socket, m, for the reception of a stud, m, from the heel of the cutter-bar, or else itself has a stud or knob to entera socket in said heel,while the block N at the rear has a globular or other appropriate head, n, to afford a joint with the pitman, and,whenever the pendulum is used, a lug, n, with an eye for the reception of the hooked lower end of said pitman. The use of the sway-bar as thus constructed is, of course, not limited to its arrangement beneath the elevator.

I claim as my inventionl. The combination, substantially as hereinbefore set forth, of the two front sills, the spacing-blocks between them, the angle-iron finger-bar extended along the platform-sill, the cross-timbers overlying the lapping ends of said sills, andthe bolts passing through said cross-timbers, the front elevator-sill, the spacing-blocks, and the upper web of the angle-iron.

2. In a harvester, the combination, substantially as hereinbefore set forth, of the front platform-sill, the front elevator-sill set obliquely, the cross-timbers overlying the lapping or contiguous ends of said sills, the extended angle-iron linger-bar, the spacingblocks between the oblique sill and upper web of the angle-iron, and the fastening-bolts passing through the cross-timbers, oblique sill, spacing-blocks, and said upper web.

3. The combination, substantially as hereinbefore set forth, of the cutter-bar and its extended heel, the sway-bar pivoted beneath the elevator, and the pitman and its drivingcrank at the rear of the machine.

4L. The combination, substantially as hereinbefore set forth7 of the cutter-bar and its extended heel, the sway-bar pivoted beneath the elevator in the space between the main wheel and inner elevator-sill, and inclined to pass above the rear and beneath the front elevator-sills, and the pitman and drivingcrank located at the rear of the machine.

5. The combination, substantially as hereinbefore set forth, with the sway-bar pivoted beneath the elevator, and with its short driving-pitman, of the pendulum pivoted to the inner elevator-strut and supporting the rear end of said sway-bar.

6. The combination, substantially as hereinbefore set forth, of the cutter-bar with long heel-extension, the inclined sway-bar pivoted beneath the elevator, and the spacing-blocks between the front platformsill and front elevator-sill to lift the latter to permit the end of 3o metal bridge connecting the two and support- 35- ing an inclined pivot-pin, and the sway-bar journaled upon said pin and passing at Aone end above the rear elevator-sill and at the other beneath the front elevator-sill.

8. The combination, substantially as here- 4o inbefore set forth, to form avsway-bar, of the two inverted steel truss-bars, the king-block or stretcher uniting them at their angles, and the terminal blocks in which their ends are seated, each of said blocks having provisions for the attachment of a pitman.

9. The combination, substantially as hereinbefore set forth, in a sway-bar, of the trussbars K, the front terminal block, M, with its socket m, and the rear terminal bloclz,N,with ball-head n, for the pitman-connection, andlug n,to receive the swinging end of a pendulum.

VILLIAM R. BAKER.

Vitnesses:

GEO. B. AVERILL, y JOHN V. A. HAsBRooK.

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