US343002A - brown - Google Patents

Description

(No Model.) 2' SheetS -Sheet 1.

R. BROWN.

'HARVESTER.

N0. 343 002. Patented June 1, 1886.

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(No Model.) 2 Sheets-Sheet 2.

R. BROWN.

HARVESTER. No. 343,002. Patented June I, 1886.

joints and parts.

UNITED STATES PATENT OFFICE.

ROBERT BROVN, OF MIAMISBURG, OHIO, ASSIGNOR TO HOOVER & GAMBLE,

' OF SAME PLACE.

HARVESTER.

SPECIFICATION forming part of Letters Patent No. 343,002, dated June 1, 1886.

Application filed April 29, 1885.

To all whom it may concern:

Be it known that I, Bonner BROWN, a resident of Miamisburg, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvementsin Harvesters, of which the following is a specification.

My invention relates to an improvement in harvester-frames.

The (bject of my invention is to provide a new and improved means for raising and lowering the main frame relatively to the height of the driving-axle.

Various modes of raising and lowering the main frame of harvesters have been employed hitherto; but great difficulty has been experienced in getting a steady rigid frame, and yet one whose height from the ground could be readily changed and still secure a rigid set, avoiding vibrations due to lost motion in the The hereinafter-described devices accomplish this result very perfectly, all of which will be fully set forth in the description of the accompanyingdrawings, forming a part of this specification, in which Figure 1 is a top plan view of my improvement attached to an ordinary single drivingwheel harvester; Fig. 2, aside elevation partly in section; Fig. 3, a section on line as m, Fig. 1; Fig. 4, an enlarged elevation of the segmental j'ournal-guides; Fig. 5, a top plan view of the same; Fig. 6, a top plan view of one of the lifting-sectors; Fig. 7, an inside plan view of the lifting-segment; Fig. 8, an enlarged elevation of the lifting-gears; Fig. 9, an enlarged perspective view of the lifting-sector, shown in proper relation to the segmental journalguides. Fig. 10 is a perspective viewof one of the journal-boxes.

A A represent the side rails of the main wheel-frame, A A the front and rear rails.

13 represents the master or driving wheel.

b represents hubs for securing the axle to the wheel. I

0 represents the journal-box of the main axle.

D D represent two sector-levers, pivoted one on each side the wheels or center-pins, 7, secured to the side rails, A A, respectively. The rear part of the sector-lever D, which is that one upon the inside of the frame, is provided with an opening, 1, through which the Serial No. 163,853. (No model.)

counter-shaft, 0, passes. This opening is made of large dimension, to allow of the movement of the lever without interfering with the counter-shaft, as well as to lighten the weight of the lever. Sector-lever D is shown in detail in Fig. 7, and has the following features additional.

2 represents a segment upon the rear end of the lever, provided with rack-teeth 3.

4 represents a strengthening-rib.

5 represents a slot in the forward end of the sector-lever, of the proper shape and size to receive the box 0 and allow it proper move ment lengthwise of the lever. These slots are elongated sufficiently to permit the necessary lateral movement of the boxes 0. This movement is rendered necessary by the fact that, to preserve the mesh between the drivinggear on the ground-wheel and the gear on the counter-shaft, the boxes must move in a curve struck from the center of the counter-shaft 0, while the levers D D move in arcs struck from the studs 7. The slots 5 are therefore longer than the width of the boxes 0, to permit the lateral movement of the boxes as the levers are vibrated.

6 represents a boss, pierced with a hole to receive a center bolt, 7, which passes through the inner side rail, A.

' Secter lever D at its forward end is provided with an offset, 8, (shown in Fig.6,) whereby the lever is car-riedover the flange 1.0 on guide E, and its pivotal point brought closely against the frame at the point 7. Beyond the offset the end of the lever is bifurcated, having forks d d, which embrace the lip 9 of the segment-guide F, forming a close joint with the guide and preventing lateral displacement. The sector-arm D, upon the opposite rail A, is not shown in detail, but is of the same general form as sector D. The object of these sector-arms is to raise and lower the'frame relatively to the axle journaling in the boxes 0.

In order that the journal boxes may be guided as the frame moves up and down, so as to prevent displacement of the pinion on the counter-shaft c from the gear-rim on the main wheel, I have provided two segmental guides, E F-0ne in front, the other in rear, of

the journal-box C-of such shape as to receive and guide the boxes, as well as to prevent lateral movement of the forward end of the sector-arm in the manner shown in Fig 9.

The forks d straddle the flange 9 on seetor F, and a flange, 10, is provided on sector E, to act as a guide to the sector-arm in rear of the journal-box, so that the sector-arm is supported and kept in firm relation to the segmentplates E F both laterally and vertically. The opening between the segmentplates E F is a curve struck from the eenterof the counter-shaft c, for reasons already given.

The segment-guides E F are preferably cast integral with a connecting-piece, H, extending below the side rail, to which the guides are secured by bolts 6.

I do not wish to limit myself to the form of connecting the segments to the side rail, as the details of construction are not important.

11 12 represent transmitting bevel-gears, receiving their power from the driving-wheel B through the counter -shaft 0, in the usual manner.

13 represents other transmittil'iggears.

14 represents a crank.

In order to raise and lower the frame on the journal-boxes, I provide the crank shaft 15, having a crank-arm, 16, and journaled in brackets 17, attached to the rail A.

18 represents a worm, keyed on shaft 15. and arranged just beneath and meshing with the teeth of a spur-gear, 19, so that when the crank 16 is turned it will drive the spur-gear.

21 22 represent smaller spur-gears, keyed upon shaft 20, having the proper size and pitch of teeth to engage the teeth of the segment-racks on the rear ends of the levers D D, so that when shaft 20 is driven by the worm-gear the levers D D are simultaneously actuated, thereby raising and lowering the frame on the ournal-boxes 0, these boxes moving in their segment-guides E F.

The width of the boxes 0 is j nst equal to the distance between the flange 10 on guide E and the edge of flange 9 on guide F, and said boxes are carried by elongated slots in the forked ends of the levers D D, the ends of the boxes being in close proximity to the side beams of the wheel, frame, or partly upon the rail and partly upon the forwardly-projecting flange of the guide E, which is sunk in the wood of the rail, as shown in Fig. 5.

The counter-shaft c has bearing upon the inner side rail of the frame, and extends through the opening in the rear part of the lever. It has a pinion on its end engaging with a gearrim on the main wheel.

I claim- 1. In a harvester-frame, the combination, with the main driving-wheel, of an axle journaled in boxes at both ends,segment-guides be tween which said boxes have adjustment vertically, sector-levers fulcrumed upon the main frame and having slotted ends, which extend over said guides and carry the journal'boxes, and mechanism for moving the sector-levers in either direction, substantiallyas described.

2. The combination, with the sector-levers D D, fulcrumed upon the harvester-frame,and having upon one end slots to receive thejournal boxes of the main axle, and upon the other end toothed surfaces meshing with actuating-gears, of segment-guides E I betweenwhich the journal-boxes move, and a worm and shaft meshing with one of the actuatinggears, substantially as described.

In combination with the sector-levers D D, having their forward ends forked, the segmental guide F, provided with aflange, 9, for preventing lateral displacement of the sectorlevers, substantially as described.

4. In combination with the sector-levers D D, pivotedto the side rails of the main frame, and having their forward ends slotted to re ceive and hold the boxes 0, which are guided in their vertical movement by the guides E F, substantially asdescribed.

5. In combination with the sector-levers D D, pivoted to the side rails of the main frame and having their forward ends slotted to receive and hold the boxes 0, one or more segment-guides secured to the main frame on each side and serving as guides to the journalboxes and to prevent lateral displacement of the levers, substantially as described.

In testimony whereofI have hereunto set my hand.

ROBERT BROlVN.

Vitnesses:

LEWIs H. ZEHRING,

WEIDNER.

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