US109197A - Petots - Google Patents

Description

@tout %tata GEORGE `sUrToN eARTH, oE MILL'HALL, PENNSYLVANIA.

Letters Patent iI\l o. 109,197, dated November 15, 1870.

IMPOVEMENT iN STRAW-CUTTERS,

l The Schedue referred' to in thes-Lettrs Patent and making part of the same.

:o elif/whom ttimay concern Bej it known that I, GEORGE SUTTON GAnrn, of

-'sylvania, haveinvented a new and useful Improve- ,tuent yin Straw-Gutters; and I- do hereby declare that' .the following isa full, clear, and exact description thereof, which -will enable others skilled in the a-rt to make and use the same, reference being had to the aceompanyingdrawing forming part of this specificaJ tion.- v My invention relates to straw-cutters; and myobjeetis to introduce to the public certain improvements thereon, which will be first described, and then pointed out in the claim. i

Figure lisa side elevation ot' luy improved inachtne.

Figure 2 is an end view of the saine. Figure 3 is a detail, showing the arrangement oi" the feed-rollers.

Figur-e4 is a viewot' one ot' the .part-s used, detached from the others.

Similar letters oi' reference indicate correspoiuling 4 parts.

Thebox A. is lnade with vertical sides, and the lower feed-roller, B, is mounted in iixed bearings near the bottom, and vthc upper one, C, is mounted in the npp'er ends oi' the vertically-sliding hars D, fitted to slide up and down in vertical grooves ll in the side -of the box, one being on the outside ot' one box side,

vthe straw cannot be crowded in between thel ends and the sides, and the barD, which works on the inside,- is arranged iiush with the side, so that n'o space is left in which the straw can clog.

These hars extend below the bottoni ol' the box, and are clamped between two cross-bars, l, fitted at the ends, so that being clamped by the bolts K against them, they will 'be permanently connected tothe said cross-hars. s

One of these `hars has a slot at the center, into which the end oi' a long spring-bar, M, engages, to draw the upper rellerdown upon the straw heilig fed between the two rollers.

This spring-bar isattached to the rear end of the i rame at N, and works over a stufiing-bridge,0, where it is provided with a temper-screw, P, to vary the tension.l

The said screw passes loosely through the springbar, and screws through a nutfastened to the block Q, against a plate let in the bridge, so'that when turned one way the block will be forced down, and the spring will thereby be placed 'under greater strain;

.but when the vscrew is turned the otherway, the block will have less pressure on the spring, and the tension will be lessened.

The axles of the rollers which project through one side of the h ox, as above stated, are provided'with ratchet-wheels .lt S, the teeth ot' which are` pitched in opposite directions, according to the direct-ions of the movement of the dilierent rollers.

-These ratchet-wheels are intended to impart an intermittent rotary mot-ion to the rollers, through themeduin ot' the cutter-lever, and for this reason adoubleacting pawl is used, consisting of the vertical bars V V', united by a horizontal bar, Y, arranged hy the side of the ratchet-wheels, so as to support the said two bars ofthe pawl in such relation with their respective wheels, that, when a nioveincntis imparted to the pawl in one direction, say the vertieahthe teeth thereof will engage with audturu the roller, asrequired.

ltor causing this inoveiueut'to the pawl, it is connected by a pin, M', with a lever, X, pivoted at Z, and arranged to he struck at the free end by a lug, Y, attached to the cutter-lever l" near the pivot, so that when the cutter-lever is laised it will raise the level' lever X, and thereby cause the feeding movement oi' the rollers when the cutter-lever is rising.

For insuring the tightening-nut (t ofthe pivot-bolt Il ot' the cutter-lever against working loose, I introduce a washer between the nut and the plate e, having an arm, f, which projects beyond the plate c and bears againsta stud, g, on the lever Y', so that it will turn with the bolt which is turned beyond the lever Y inthe hole in plate c, which does not turn the bolt, be ing litted to the lever in a square hole f or the purpose, the nut heilig screwed up against this washer and inoving with it, and the holt will not be disturbed or caused to work loose.

I prefer to make a socket in the face ota the washer which tits against the plate e, and to malte a stud or projection thereon around the hole, for the lbolt to fit into the socket in the washer, but the two surfaces which come inte contact may be plane.

By placing the feed-rollers nearer the mouth of the box, the lug Y on the cutter-lever may 'becansed toV act on the feeding-pawl, and thelever X may be dispensed with; but I prefer the arrangement hereinV shown, for the purpose ot' having the rollers so far away from the mouth of the box that the straw will spring up between the rollers and the cutter, so :is to prevent it from slipping back through the rollers, as it will do if therolllers are close to the cutters, und the straw does not have freedom to spring-.up het-Ween the rollers und the cutters.

The wall of the hole through the pluto c', against which J[he cutter z1cts,is colnmonl y made in the curved forni represented it a?, to prevent the straw from collecting'iu :n moss thereat, as would be the ense if the plete c be made in the saine angular form as' the box, and behind this curved corner it is necessary to ll up the lbox in some wny to prevent the straw from clogging against the inside of the platte.; this I propose to do by means of the curved metallic angle-plate, represented in tig. 4, the suue being cust -iu the requisite form, and provided with :tconntersunk hole, by which it muy be att-ached by n singlescrew screwing through it into the angle of the feed-box.

This plate may be made much cheaper than :t wood block, and when secured in place will be much more durable.

Having thus described my invention, v I cluiin' as new and desire to secure by Letters Patent- 1. The bent'rutehet-bm' V V V", formed as de scribed,

nud nut (l, for the purpose set forth.

Witnesses: GEORGE SUTTON GARTH.

G. W. BATCHELER, A. B. GARTH.

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