US305230A - Feancis h - Google Patents

Description

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

P. H. RICHARDS.

` COTTON GIN. No. 305,230. Patented Sept. 16, 1884.

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, Sheets-Sheet 2. F. H. RICHARDS.

. COTTON GIN. No. 305,230. patented sept. les, 1884.

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mnees; Innenfol 2o bodying my invention.

1. NITED STATES PATENT Ormea,

FRANCIS H. RICHARDS, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE PRATT 8s VHITNEY COMPANY, OF HARTFORD, CONNECTICUT.

COTTON-em.

.LPECIPICATION forming part of Letters Patent No. 305,23), dated September 16, 1884.

` Application filed December 31, 18,83. (No model.)

' 15 granted to E. Osgood, December 19, 1876, to

which reference may be had; and it consists in certain combinations of mechanism hereinafter described and claimed.

Figure 1 is a plan view of a machine em- Fig. 2 is a front elevation of the same. Fig. 3 is an end elevation of the left-hand end of Fig. 1. Fig. 4 is a partial end view of the right-hand end in Fig. 1; Fig; 5, a vertical transverse section in line a" a' ofFig. 2.

Similarletters refer to similar parts throughout the several views. Y

The frame of the machine, which I prefer y shall bebf a box form, substantially as shown, 3e has secured thereto the usual doctor-knife, Ii, guard-plate C, and guide-plate D', two lugs, F', formed or secured thereon,in which are formed the bearings for driving-shaft O, a lug, F, in which is secured the stud N, lugs for rods 21, 3 5 bearing-surfaces for feed-board supports, and a recess properly formed to receivethe slide S. Two levers, L, are pivoted to the frame by means of screws 15, and are adapted to carry at their upper ends the friction-roll D, which 4o has the usual covering of leather or similar material. The shaft of this roll carries at one end a worm-gear, Gtwhereby it is rotated. A i sufficient pressure of the roll D upon the doctor-knife may be secured by means of rods 21, springs 22, and lugs 20, or by a weighted lever. The slide S carries a stud, N, which carries the wheel B. Said slide is traversed by means of a screw, S, which passes through a tapped hole in said slide and acts against the 5o frame, and is operated by a crank, as shown,

or otherwise, for the purpose of adjusting the tension'of the endless clearer C. The studs N and N have fitted over them a thimble, Bl and B3, respectively, secured by nuts and washers 9 10, and to these thimbles arclitted the band-wheels B B.

Upon the band-wheels B and B is placed the endless clearer C. The upper edge of said clearer is undulated, as plainly shown in Figs. 2 and 3. Suitable nuts, 8, above and below the band-wheels, are provided for adjusting them to and securing them in any required position upon the thimbles. These bandwheels have lianges at their lower edges, to prevent the clearer C from being forced downward by the pressure of the cotton upon its upper edge.

G, which receives -its motion from a pinion, G, on drivingshaft O, the latter being driven by pulley P. The driving-shaft also carries a worm-pinion, G3, gearing into the wormfriction roll whereby the latter is driven. Thescgears are constructed of such proportions relative to each other, the size of friction-roll D and band-wheel B being duly considered, that the velocity of the endless clearer as great as the velocity of the surface of said friction-roll.

Upon the front of the doctor-knife is secured a suitable guard-plate, C, and in the space between these the endless clearer C is adapted to run. Beneath the friction-roll a guide-plate, D', may be placed for the purpose of passing the mass of ginnedA cotton out of the machine in good shape.

A feed-board, H, having sides H H2, is supported in any convenient manner, as upon posts 1G and 17, and has the usual gratingV, for the escape of the ginned seeds, allowing them to fall into the seed-box, this being the chamber within the frame A, as shown, from which they may be removed at convenient intervals. Y

The operation of my improved roller cottongin is as follows: Power is applied to the machine by means of a band upon pulley P, which,

wheel-G4, which is fixed to the shaft of thev Upon thimble B3 is formed or secured a gear,

shall be preferably about eight or ten times rapid rotation o1" the band-wheel B,an d thereby the endless clearer, and -a slower rotary motion of thelfriction-roll D is imparted by means of the worm-gearing described. Seedcotton is now applied to the feed-board and pushed by the operator against the frictionroll, which draws a portion of the lint of the saine downward between the said roll and the doctor-knife. The motion of the clearer, by means of the elevations on its upper edge, the same being properly adj usted therefor, gives to the seeds of the cotton-lint so held asuccession ofvrapid blows,severing the cotton fibers therefrom and allowing` them to fall through the grating into the seed-box. Willen the seeds are thus separated, the lint from the same is carried under the roll D and issues from the machine at the back side. As the lint of one lot of seeds is removed therefrom the motion lof the friction-roller brings other lint into its place,and thus the operation is continuous so long as the feed-board is properly supplied.

By means of the described `construction ot the band-wheels, their supporting-thimbles, and the studs N N, the draft or tension ofthe clearer tends to keep the bearing of the said thimbles upon said studs equal throughout their whole lengtl1,thereby causing the clearer to run true, and not run upward and oit' from the wheels. By the arrangement of gearing shown and described, the entire driving mechanism is brought into a compact form and made to operate advantageously.

Having thus described my imiention, I clain1 l l. In a cotton-gin,in combination, a doctorknife andafriction-roll, an endless seed-clearer, flanged band-wheels B and'B, thimbles B and B3, studs N and N', means for adj Listing and securing said band-wheels upon said thimbles, and means for adjusting stud N relative to stud N', whereby said clearer may be tightened upon said wheels,substantially as described.

2. In a cotton-gin, in combination, a doctorknife and a friction-roll, an endless seed-clearer, iianged band-wheels B and B', thimbles B2 and B3, studs N and N, and meansfor adjusting and securing said band-Wheels upon said thimbles, substantially as described.

FRANCIS H. RICHARDS.

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