US150319A - Improvement in harvester-cutters - Google Patents

Description

TTED STATES PATENT OFFICE;

ozno A.' HILLMAN, or PROVIDENCE, nnoDn ISLAND.

IMPRovEMi-:Ni'm HAR-yE'sTER-CUTTERS. y

Specification formingpart of Lctteislatenwt 19, Meld April 28 1874; applicati@ med v February 10, 1'874, Y. l v

To all inkom it mag/ concerm i Be it known that I, Ozno A. HILLMAN, of

the cityof Providence, and county of Providence, in theState of Rhode Island, have inlvented certain new andnseful Improvements in the Cutting Apparatus for dvlowing-lllachines.

My invention consists, partially, in the method of mounting the hearing-blocks on the finger-bar, whereby they may be readily adi usted or displaced for renewal; also, in com.- bining, with the bearings and sickle-button, a lubricating-chamber provided jwith ducts communicating' 'with the bearings; and, still further, in certain other minor points, hereinafter described; and I do hereby declare that the following specification, taken in connection with thev drawings furnished and forming a.

part 'of 'the same, is a clear, true, and vaccurate description of my said invention.

In the drauf'ings','Figure l Arepresents in t'hc top view a'portion 0f a fmgerlbar with. sickle .and my improvements attached. Fig, 2 rep rese-nts, in vertical lateral section, one of the lingers, sickle-sections, the sickle and its bearings, and the lubricating-chamber. Fig. 3 represents the sickle-button, lubricatingchamber,

.f and bearing-clamp in vertical longitudinal seetion. Fig. 4 represents, in front View and seetion, the rectangularbearing which is attached to one ,of the .sickle-sections. Fig. 5 represents a bearing-blockdetached from its clamp. "Figl 6 illustrates the movement ofthe ends of the knife-sections.

In each instance, A denotes the finger-bar, having well-known characteristics,which .in-

volve none Aof the features of my invention. vB-

dcnotes the ordinary sickleLsections. (l de# notesthe sickle, which may-be actuated byv any of the Well-triedgoperative mechanisms. D denotes ,a bearing-block clamp, which also, with its projecting arm e', performs the fungtio'ns of a Scythe-button. This'clampis s cured to thQ upper surface of the tinger-barbyA bolts or heavy screws, as seen at 1),'Which may also be employed for uniting the lingers to the nger-bar.- Within the upper portion of the clamp is a lubricating-chamber, E, provided' with a suitable cap or cover and a duct,'as at '0., at the bottom ,thereofl 1 denotes a-rectangular bearing, composed of hardened 5 and having'a length slightly greater than the limits within lWhich the sickle is capable ot' being moved longitudinally. 'Ihe bearing is irmly'united to the rear edge of the'sickle5 and forgiving it additional rnn'icss,sections of the sickle corresponding in number and position with the bearingfbloeks are of such a length as to project their rear ends over the edge of the sickle-bar about one-fourth of an inch, andto thennder side of these projece..

tions the rectangular hardened-steel bearings are riveted. These bearings, when the sickle is in proper workin g position, are in frictional contact with the front and upper faces of the bearingbloeks, thereby relieving from friction and Wear. all portions of the sickle-bar, as Well 'as all of the sickle-sections, except the cutting-edges' thereof. -The' rectangular bearings--I1"being separatelyconstructed and secured to the sickle-bar,`-as describedit is possible to readily renew them'whcibunduly Worn, the bar meantime remaining intact instead of being worn away, as would be the case if the stationary bearings were in direct contact therewithi which is bound to the linger-bar by ineans'ot' the clamp D and its bolts." Its thickness is When, by reason of Wear oir/the front faces of -the blocks, it is desirable to advance them slightly, it can be readily accomplished by slightly loosening the bolts and driving the blocksinward tothe desired .point When the upper front surface of the blocks become Worn 'theyl can be 'taken out, turned over, and replaced, thus affording', an opportunity for both sidestol be equally worn before their renewal becomes desirable. It will be seen that the lubricating-chambers can besupplied with a lfibrous absorbent and line oil in 'proper quancineasta that@ 'winne conducted directly to the exact'v is' required. Figs.

G denotes the bearing-block,.

2 and G'ciearly illustrate the action of the knife-sections. The under sides of the knives are not in general contactwith the entire upper surface of the lateral slope in the fingers,

-as in machines not possessingmy improvenient, but, on the contrary, eachot' the knives bears only on one or both of the coincldent shear-edges of thetwo adjacent fingers, and

during the longitudinal movementofthe sickle; har the outer ends of the knife-sections move slightly down and up, as illustrated bythe dotted lines at ein Figzl. Thisarrangcment 'of the sickle-bar, bearings, and the cutters with relation to thelongitudinal upper surfaces of the slots in the fingers secures at every portion of the stroke a'perfeet shear contact of each knife-edge with the adjacent shear-edge of. the linger, and results in a* cleanl and 4perfect cnt.,A The hearing'hlock clamp will, preferably, be seeured to the iinger-bar by means of the l)olts,\.rl1ich also perforintlle function ot' securing` two of ftheadjacent fingers to the har,rit only being essential that the bolts bemade sufticiently longer than usual, so as to properlyten gagetherexvith. 1 The b earingblool; t 'clump being formed` in tone `piece with the 'Scythe-button, and the bearings be ing adjacent thereto, economy in'construction to a desirable degree is atta-ined. .The presenceof the Scythe-button adjacent to .the bearings serves, in a measure, to .prot-ect the surfaces in proper contact. j

" -Ha'ving thus described .my

claim as ne\v,to be secured by Letters Patent- 1.4 The coinbination, with the hearing-blocks "cured to the fnger--bar and' rendered capable yof ready adjustment and renewal, subst-an- 'tially as described.

bearings from dirt, and to keep-the henri-n0# invention, I

G, Vof the clamp' D, whereby ther blocks are set o 2.`Thelubricating-chalnher mounted on thev finger-bar, located adjacent tothe sickle-bear- V

Images