|Publication number||US266632 A|
|Publication date||Oct 31, 1882|
|Filing date||Feb 3, 1882|
|Publication number||US 266632 A, US 266632A, US-A-266632, US266632 A, US266632A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (25), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
J. MOCORMIGK. EAEVESTEE KNIFE.
No. 266,632. Patented 0ot.31, 1882.
UNTTED STATT-3S PATENT @Truce JAMES MCCORMICK, OF PRINCETON, INDIANA.
SPECIFICATION forming part of Letters Patent No. 266,632, dated October 31, 1882.
Application filed February 3, 1882.
To all whom it may concern:
Be it known that I, JAMES MoConMioK, of Princeton, in the county ot' Gibson, and in the State of Indiana, have invented certain new and useful Improvements in Harvester-Knives; and I do hereby declare that the following is a full, clear, and exact description thereof, ret'- erence being had to the accompanying drawings, and to the letters ot' reference marked thereon, making a part ot' this specification.
This invention relates to certain improvements in sectional knives for reapers and mowers; and it has for its objects to provide animproved means for securing the blades to the supporting-bar in such manner as to bring the strain upon the sides of the bar and avoid all longitudinal strain, as more fully hereinafter specied. These objects I attain by the devices illustrated in theaccompanyiugdrawings, in which- Figure l represents a top view of a portion ot' my improved cutter-bar. Fig. 2'represents a longitudinal section view ofthe saine. Fig. 3 represents a side elevation of a modification ot' my invention 5 Fig. 4, a perspective view ot' one of the connecting` devices, and Fig. 5 a cross-section ofthe same.
The letter A indicates the supporting-bar, provided with an eye, B, for attachment to the pitman.
The letter C indicates the knife-sections.
Above the bar A, and parallel with it, is a similar bar, D, as shown in Fig.2 ofthe drawings, extending longitudinally partly over the lower bar. lhese bars are rectangular or other shaped in cross-section to receive the rectangular orother shaped sleeves E, or connecting devices. The sleeves are of such form and size as to tit over the bars A D, as shown, the said sleeves being formed with two openings, a d-one for the lower andthe other for the upperbar. The lower portion ofthe sleeve is extended at each end beyond the upper portion, and between the upper and lower portions are formed slots or recesses c, for the purposehereinafterdescrihed. Thecxtended portions of the lower part ot' the sleeve are open on top, as indicated in Fig. 4 of the drawings.
rEhe cutters or knives at their rear corners are provided with angular recesses F, and are adapted to set into the recesses e, which extend (Model.)
obliquely to the rear to coliform to the angular corners ot" the rear ofthe cutters, so as to securely hold the same in place.
The harAatits end isprovided with a screwbolt, G, by means ot' which the knives and their connecting devices may beheld in place.
The angular corners ot'the knives are beveled at their edges, as indicated by the letter g, and the recesses into which they tit are likewise beveled, as indicated by the letter h in the drawings.
In applying the cutters and connecting devices to the supporting-bars, one of the sleeves is placed upon the bars and pushed up to the shoulder Hon the section which carries the eye B. A cutteris then placed upon the lower bar, and its rear angular corner at one side, is pushed into the recess in theconnectingdevice previously placed upon the bars. Another connecting device or sleeve isy then placed upon the bars until the recess at one side engages the cutter previously placed upon the bar A. Another cutter is then applied, and so on until all are in place, when they aresecured by means ofthe nut or nuts I, applied to the screw-bolt at the end ot' the bar A.
1t will be apparent that as thus constructed, should one or more ot' the knives receive a shock, the strain will be thrown upon the shoulders of the knife-sections, thus bearing the sleeves against the sides of the bars, and not separating them longitudinally. Hence no strain comes on the nuts, and they simply perform their proper ollicc ot' holding the parts together in such manner that they may be readily tightened or loosened.
1n the modification the eye-section is located at the center instead ot' the end ot' the cutterbar, and in this case the knives and their connections are secured at opposite sides oi' the sections.
Having thus described my invention, what I claim, and desire to secure by Letters Patent,
1. A cutter-bar consisting of. two parallel bars, a series ot' removable sleeves having suitable openings and adapted to lit on said bars, the said sleeves being provided with angular recesses to hold the cutters, a series of removable knife-sections provided with angular beveled rear corners adapted to t said recesses,
4and the screw-boit and nut for `securing the constructed and arranged substantially in the ro A1 parts together, substantially as specified. manner specified.
2. In combination with the bar A, the paral- ,In testimony WhereofIaEx my signature, in lel bar D, extending from the eye-section, presence oftwo Witnesses, this 7th day of Jan- 5 whereby said bar A is re-enforeed at; its weaknary, 1882.
` est; point, the sleeves E, provided with oblique JAMES MCCORMICK.
recesses e, the knives G, provided with angular Witnesses: beveled rear corners adapted to tit in said re- HENRY M. LAMB, cesses, and the bolt G and confining-nut, all ROBERT R. ORE.
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