US157794A - Improvement in mowing-machines - Google Patents

Description

ZSheetS-Shetz W. F. CUGHRANE.

mowing-Machines. N0.\57,794. Patented Dec. 15,1874.

y HULL M Attorney/s.

ZSheets--Sheet 2. W. F. CCHHANE.

Mowing-Mach'nes.

NO.\57,7QA Patented'DecJJSN.

UNITED STATES PATENT OEEro.

WILLIAM F. COCHRANE, OF LA FAYETTE, INDIANA.

IMPROVEMENTv IN MOWlNG-MACHINES.

Specification forming part of Letters Patent No. 157,794, dated December 15, 1871; application filed December 15, 1873.`

GAsE C.

To all whom it may concern:

Beit known that I, WILLIAM F. CooHEANE, of LaFayette, inthe county of Tippecanoe and State of Indiana, have invented a new and Improved Frame for Harvesting-Machines 5 and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings forming part of this specification, in which- Figure 1, Sheet 1, is a plan view of the main frame. Fig. 2, Sheet l, is a transverse section taken in the 'plane of the line :r cc, Fig. 1. Fig. 3, Sheet 1, is alongitudinal section of the frame, parts being shown in elevation. Fig. 4, Sheet 1, is a view of the guards for the driving gear and` pinion, and their connections. Fig. 5, Sheet 1, shows detached views of the rocking pipe-box, and one of the side pieces of the frame. Fig. 6, Sheet 2, is a perspective view of one of the side pieces of the frame. Fig. 7, Sheet 2, is a rear elevation of the main axle and driving-wheels, showing the method of connecting the foot-board to the former, together with the pinions for raising and lowering the frame, and Fig. 8, Sheet 2, is an inner side elevation of the machine, showing the position of the grain-board.

Similar letters of reference in the accompanying drawings denote the same parts.

My invention has for its object to improve the construction ofharvesting-machine frames, for the purpose of making them more compact and substantial; to simplify and facilitate the setting up or putting together of the machine, and to so distribute the weight about the main axle and between the drivin g-wheels as to render the adjustment and movements of the frame light and easy.

To these ends the invention consists, first, in constructing the side pieces of the frame in two parts, one of wood and the other of metal, the latter being cast with sockets to receive the former in continu ation of their length, and with vertical segmental slots, through which the axle of the machine extends, and by which the side pieces are allowed a vertical movement independently of the axle to adjust the position of the frame. It also consists in pro- Viding the frame with conical sockets, into which the pipe or journal boxes of the counter-shaft can be readily inserted to facilitate the setting up or fitting the parts of the frame together. It also consists in the construction of the pipe-boxes, and their connection with the side pieces, to prevent them from rotating in the conical sockets. It also consists in oonstructing the pipe boxes with overhanging outer ends, to form sand-washers for the joints between such ends and the pawl-plates of the drivin g-pinions. It also consists in the method of connectlng the sides of the frame by through-bolts and tubular columns thereon, and in locking the two parts ofeach side piece together. securing the sides of the mainframe together at their rear ends, and of connecting the pitinanshaft pipe-box to the frame.

In two applications for Letters Patent, tiled simultaneously herewith, to wit, applications A and B, I have shown the general features of the harvester-frame,4 but in neither case have I claimed the construction of such frame, nor do I intend to, as it forms the subject of the present application. The general form of the main frame is rectangular, and is constructed in the following manner:

A A are the side pieces, each composed of two parts, B C, the former of metal and the latter of wood. The part B is east in the form of a shell, open upon its inner face, and with a longitudinal socket, D, at its rear end to receive the end of the timber C. The two timbers are secured within the sockets by the through-bolt E, which, in connection with the ilanged column F, mounted thereon between such timbers, assists in holding the two side pieces of the frame together. The parts B are expanded vertically near the sockets D, and have segmental slots G formed in them of the proper width to receive the main axle H of the machine, the side pieces being passed over the ends of the axle and abutted against collars I keyed thereto. These collars serve to hold the side pieces against lateral displace ment when the frame is bolted together, and they are eachcast with a pinion, J, projecting within the segmental slots G ofthe side pieces, to engage with curved racks K cast upon the short arc of such slots. L L are the main It also consists in the method of driving and supporting wheels, mountedupon opposite ends of the axle-outside the frame, so as to revolve independently of each other, and M M are the driving-pinions on the countershaft N, meshing into the internal gear-rims of the driving-wheels in the usual manner. VO is the socket of'a hand-lever, P2, keyed to the axle between the frame and outer driving wheel, as shown. By operating this lever the axle is rocked or rotated to raise and lower the frame thereon through the medium of the segmental racks and pinions. P are conical sockets, cast upon the side pieces B of the frame to receive the pipe-boxes Q, forming the journal-bearings of the counter-shaft. These pipe-boxes are each cast with a gib, R, bearing laterally against the outside of the framepiece B, and vertically upon the ends of a semi-annular gib, S, cast upon such framepiece. The two gibs prevent the pipe-box from turning in the socket, and form a divided lange or rim, as shown. The pipe-boxes are also made each'with a flange, T, upon its outer end, to project over the joint between it and the pawl-plate U of the driving-pinions, and form a sort of sand-washer for excluding the dirt from such joint. The sockets P are made somewhat conical to receive the pipe-boxes, so that, in putting the machine together, it is only necessary to insert the boxes in the sockets, without special itting or manipulation,

when the counter-shaft will readily align itself. The conical sockets greatly facilitate the setting up of the machine. W is the beveled gear-wheel, fitted upon the counter-shaft so that the latter shall turn freely within it when uncoupled, and it is cast with a long tubular hub, V, on one side and a half-clutch on the other. X is the sliding clutch, operated by a shipping-lever, Y, to couple and uncouple the counter-shaft and gear-wheel. The outer end of the tubular hub bears against a collar, Z, on the counter-shaft to hold the gear-wheel engaged with the beveled pinion on the pitman-shaft, and the collar is made adjustable by a set-screw to regulate the depth of gear. The side pieces B are further cast upon their proximate faces with two sockets, A1, one at the front end and the other at the base of the segmental racks, with which they are connected. The sockets A1 serve for the support of the through-bolts Bl B', by which the side pieces are fastened together, and also as abutments for the tubular columns C1 C2 and D1 D2 upon the bolts. The several through-bolts are set up by nuts upon one or both ends of each, outside the frame, for the purpose of clamping the latter together. E1 is the guard for the face of the gear-wheel, formed with an opening in the center for the passage of the sliding clutch, and fitted at each end upon the bolts B B', which pass through them. The front end of the guard is clamped between the tubular columns C1 C2, and its rear end between the tubular column D1 and a half-box, F1, fitted upon the through-bolt between the columns D1 D2, said half-box being bolted to the upper end of the pitman-shaft pipe-box H1. The lower end of the pipe-box H1 is cast with a crank-shield, I1, projecting under and to the rear of the eye or tie bolt K1, which passes from one of the pivots of the bracket U- through the outer side piece of the frame, as shown by dotted lines in Fig. l.

The front side of the shield or the pointof its juncture with the pitinan-box is raised above the remaining portion to form the transverse half-box J1, fitting the under side of the eyebolt. A half upper box, L1, bolted to the lower half-box, holds the pitman-shaft box upon the throughbolt K1, while the columns M1 upon the throughbolt clamp the pipe-box between them against lateral displacement. U is the bracket for supporting the hinged cutter and linger bars from the rear end of the frame, and V is the lifting-cam for raising and lowering the outer ends of said bars. The method of holding the rear end of the frame together for the support of the bracket, and the construction ofthe supportingbracket and lifting-cams, I do not claim in this case, as they form the subject of my application B. N1 is a shield, bolted to the face of the guard E1, as shown, for protecting the beveled pinion O1 upon the pitmanshaft, and P1 is a lateral plate cast upon the side of the shield E1 for locking the clutch-lever Y in place. The lever is pivoted at the lower end of the plate, and is provided with holes near its upper end to receive the locking-pin of suchlever, as shown. S is a conical socket placed upon the pivot of the clutch-lever, and recessed or notched at its base for the necessary throw of the lever. A spiral spring, T', surrounds the pivot within the socket, and presses the lever against the plate, when the clutch is thrown in or out of gear for the purpose of holding the lever and clutch against lateral displacement, or displacement by the jar of the maA chine. W is the foot-board or tongue-bracket, cast in the general form shown, with a transverse half-box, X, along its rear under surface to tit upon the main axle of the machine. Y is a second half-box, iitting under said axle, and secured to the half-box X by means of the stirrups A3 embracing the half-boxes, and passing up through the foot-board to receive the holding-nuts E2. This construction allows the foot-board to project forward from the axle, while the latter is free to rotate or rock within the box. The foot-board carries the drivers seat and draft-pole, and is cast with an opening near one side, through which the clutch-lever Y projects within reach of the driver. F2 is a notched detent, pivoted to the front through-bolt of the frame, so as to extend upward through a slot, G2, in the footboard, where it engages with a cross-pin, H2, for the purpose of holding the main frame down at the forward end, so that the cutting mechanism shall be raised to the proper position when the machine is set up as a grainharvester. The detent is not employed when the machine is operated as a mower. l2 1s the traction-latch, composed of a bar, J 2, pivoted at its lower end to one of the throughbolts of the frame between the main axle and driving-gear, and extending upward through a longitudinal slot in the foot-board, where it is pivoted to a clutch-block, K2, adapted to engage with teeth L2, surrounding the slot in the foot-board. The traction-latch supports the main frame at a point between the gearcenter and main axle, and, by rocking the latter, through the operation of the handl lever P2, the frame is raised and lowered," so that the traction-latch shall be adjustedforward and back in the rack L2, for the purpose of raising and lowering the cutting apparatus, and regulating its position with respect to the ground, as well as to restore the weight from the cutter-bar to the main frame between the driving-wheels. The traction-latch and its functions, as well as the adjustable detent, I do not claim herein, as I have made them the subject of my application A.

M2 is a guard-board or shield to keep the grain out of the inner drivin g-wheel, and extends from the inner shoe of the cutter-bar to theiront of the main frame. It passes outside the driving-wheel, and is provided with a segmental slot, N2, through which the hub of such vWheel projects. This slot corresponds with the segmental slots in the frame, so that when the frame is raised and lowered the guard shall move with it. A right-angular bolt, O2, passes through the front end of the guard, and tits within a socket, P3, secured to the side of the frame, or formed upon the head of the front through-bolt, for the purpose of holding the forward end of the guard in place. A bracket, Q2, bolted to the inner face of the guard for the passage of the bolt O2, holds the guard from tipping laterally, and affords a bearing for it to turn upon when the frame is raised and lowered. The rear end of the guard is pivoted to the inner shoe of the iinger'bar, so that it shall be held in an upright position, being provided with a bracket, R2, the arm of which tits upon one of the pivots connecting the finger-bar to the bracket of the frame.

Having thus described my invention, what I claim as new is 1. The metal parts of the side pieces, cast with longitudinal sockets at their rear ends to receive the wooden parts, substantially as described.

2. The main frame of the harvester, the side pieces of which are composed of the wooden parts C, fitting the sockets in the ends of the parts B, such side pieces being secured together and braced the requisite distance apart by the through-bolts and columns thereon, the central bolt and column also serving to lock the metal and wooden parts together, substantially as described.

3. The combination of the pipe-boxes Q of the counter-shaft with the conical sockets P, cast in the side pieces of the frame, for the purpose of facilitating the setting up of the machine, substantially as described.

4; The pipe-boxes for the counter-sh aft, cast with the gib R, and inserted in the conical sockets P, so that the gib shall bear upon a similar gib, S, cast upon the side piece ofthe main fra-ine, for the purpose of preventing such boxes from rotating in the sockets, substantially as described.

5. The pipe-boxes of the counter-shaft cast with a gib, B, to engage with a projection on the frame, to prevent the said boxes from turning, and with a projecting ange, T, to form a sand-washer for the pawl-plate of the driving-pinion, substantially as described.

6. The guard for the face of the gear-wheel W, clalnped in place at its forward end between the tubular columns Cl C2 of the front through-bolt B', and at its rear end between the tubular columns D1 and half-boxes F1 on the second through-bolt, substantially as described. 7. rIlhe pitman-shaft pipebox, cast at its front end with ears, and at its back end with the shield I1, and transverse half-box J1 in front of and above the shield, so that the pipebox shall be supported in position by the bolts K1 B', substantially as described.

WM. F. COCHRANE.

"Witnesses:

MELVILLE CHURCH, N. K. ELLswoRTH.

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