US173902A - Improvement in harvesters - Google Patents

Description

UNITED STATES PATENT OFFICE WILLIAM E. cocHeANE, or LA EAYETTE, INDIANA.

IMPRovEMNTiN HARVESTERS.

Specification forming part of Letters Patent No. 173,902, dated February 22, 1876 application filed.

April 20,1874. A

To all whom it may concern Be it known that I, WILLIAM F. GocrIRANE,

n of La Fayette, in the countyof Tippecanoe and State of Indiana, have invented certain new and useful Improvements in the Construction ofHarvester-Frames; and I do hereby declare the following to be 'a full and exact descriptionv of the same, reference being had to the accom- A pieces.

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

My invention relates to the manufacture of harvester-frames 5 and consists in the method of constructing and fitting the various parts together, as I will now proceed to describe.

In the accompanying drawings, A A are the side pieces of the harvester-frame, cast hollow,

Vin the general form shown, with central vertical projections, forming the segmental slots B and the segmental racks C therein. The main axle D of the machine passes through these slots to receive the driving-wheels, and

is provided with guide-pinions 'E to engage the segmental racks, for the purpose of raising and lowering the frame when the'axle is rocked by its hand-lever F. Gr G are long wrought-iron bolts, formed with eyes h at one end, and inserted longitudinally in the hollow side pieces, so that the eyes shall enter recesses cast in the rear ends ofthe latter, where they receive the rear girder or bolt I. Their front ends project through the side pieces to receive the sockets of the iianged or recessed crossplates J, to which the flat wrought-iron front girder K is riveted or bolted. By setting up .the nuts L on the front ends of these bolts the front and -rear girders are locked firmly to the side pieces. The rear ends of the side pieces are braced apart by the hanged sleeves M `N on the rear crossbolt abutting against each other between the side pieces, as shown. By

box P. andthe crank-wheel shield Q are all cast in one piece, for economy of construction and to afford stronger connections for this part of the frame. It is the central wrought-iron cross-bolt of the frame, also provided with a head at -one end and a tightening and holding nut at the opposite end, as shown. This bolt carries a long cast-iron sleeve, S, between the side pieces of the frame, which sleeve is cast with two upright ears, t t, to support corresponding ears a a cast at theupper end of the pipe-box P. The two sets of ears -are firmly fastened together to hold the pipe-box in place by means of the 'bolts and nuts V. The sleeve S is further cast with a front projection, W, to which the inner end of the gearwheel shield X is bolted, the frontend of such shield being bolted to the front girder ofthe frame, as shown. A recess, y, cast in the top o? the sleeve at the center receives the lower end of the pivoted traction latch-bar'Z, by whichthe frame is suspended from the footboard or tongue-bracket of the machine. A A' are conical sockets cast upon the side pieces opposite each other to receive the jiournalboXesB of the counter-shaft C. The conical form of the sockets allows the journal-boxes to center or align the shaft properly, and-faclitates the setting up or putting the frame together.

To prevent thejournal-boxes from turning in their sockets, they are cast with a gib, D',

to rest upon a corresponding gib, E', cast on the outer face of each side piece of the frame, and' to exclude the dirt from. the 'pawl-plates of the .driving-pinions, which are mounted upon `the counter-shaft, the journal-,boxes are further cast with an overhanging outer end, Ff, to form sand-washers for such pawl-plates.

I do not claim herein the self-alignment of the counter-shaft nor the construction ofthe journal-boxes, as I have already claimed them in a former application for -LettersPatent5 but they form a necessary part of my frame,

and are, therefore, included in this description.`

The counter-shaft carries the gear-Wheel G toengage with the beveled pinion H on the pitman-shaft for driving the cutting mechanism, and is also provided with the slidingclutch I inthe usual manner.

The flat front girder of the frame projects beyond the inner driving-Wheel of the machine to receive the forward end of the drag-bar, the shoe of which is connected by a radiusbar to the projection J of. the fly-wheel shield Q, as described in some of my former applications. The inner side piece of the frame is also provided or cast with a bracket, K, projecting to the rea-r over the radius-bar, to which it is connected by a chain or other suit ablemeans, for the purpose of suspending the cutting mechanism from the main frame.

Having thus described my invention, what I claim as new is e 1. The combination of the side pieces of the frame, the veye-bolts G, the recessed crossplates J, and front girder K, substantially as described.

2. The harvester-frame, consisting essentially of the combination of the tubular cast-iron side pieces A A, the Wrought-iron eye-bolts G, the rear Wrought-iron girder 1, Ythe sleeves M N, the intermediate cross-bolt and sleeve R S, the flat Wroughtiron front girder K, and the recessed cross-plates J, all constructed and secured together substantially as described,

for the purposes specified.

WM. F. COCHRANE.

Witnesses: i E. A. ELLsWoR'rH, N. K. ELLsWoRTI-I.

Images