US172519A - Improvement in flax and hemp machines - Google Patents

Description

J". STEWART. *FMX AND HEM? MACHINE.

No., 172,519. Paftented Jan.. 18, 1876.

'NITED STATES FFIG.

PATENT JOHN STEWART, OF BROOKLYN, NEW YORK.

Specification forming part of Letters Patent No'. 172,519, dated January 18, 1876; application led June 18, 1875.

To all whom t may concern:

Be it known that I, JOHN STEWART, of Brooklyn, county of Kings and State of New York, have invented certain Improvements in Machines for Dressing Flax, Hemp, &c., of which the following is a specification:

This invention has for its object the dressing or cleaning of brous materials, as flax, hemp, &c., after leaving the brakes; and the invention consists in the use of a reciprocating set of feeding or guiding rolls, with a continuously-revolving beating cylinder, by which the broken shives are driven or beaten from the lint, as will hereinafter appear.

Figure l is a side elevation of the machine, and Fig. 2 is a plan view of the same.

The frame, as at A, is preferably made of iron, and upon it, in suitable bearings, is mounted a shaft, as at B, which carries the beating-cylinder C, which is merely a plain cylinder, either of wood or metal, which is provided with a number of beaters, as at D, which consist of ribs of hard wood, or other similar substance, placed parallel to the axis of the cylinder, and whose outer edges extend out from the surface of the cylinder, to serve as beaters in a corresponding concave that nearly surrounds the cylinder, as shown at E. Said beaters revolve in close proximity to a pair of guide-rolls, as at F and Gr, mounted in suitable housings, as at H, which are furnished with set or binding screws, as at K, for pressing the rolls together', there being some kind of elastic boxes or caps between the journals of the upper roll and the set-screws, to compensate for the unequal thickness of the material as it is fed to the machine from a table, as at L, which also has converging sides to convey the broken ax, Ste., toward the center of the machine or the beating-cylinder, as shown at Fig. 2. Said rolls are furnished with uted surfaces, fitting into each other as toothed wheels, so that they revolve together, and the lower roll has upon a projecting end of its axis a small pinion, as at M, all which receives motion from a toothed rack, as at N, which is fastened upon a plate that works in a dovetailed groove in a bracket, as at O, that projects from the frame, and is attached thereto. Said rack receives motion from a vibratinglever, as at P, which is pivoted near its center to one side of the frame, and one end of said lever is attached to the rack-plate by a link, as at R, and the other end is connected to a crank-pin by a rod or bar, as at S, said pin being mounted upon the outer face of a gear-wheel, as at T,

which engages with a pinion on the shaft of the beating-cylinder through suitable intermediate gearing, as at U, for reducing the speed, it being necessary that the said beater withdrawing it, and so on, acting until the operation is completed.

As the action of the feed-rolls is as great in one direction as the other it will be found at times quite convenient to feed the material forward at an angle to the axis of the rolls, so that when the beaters sweep it down in the concave it will not be entirely withdrawn from the machine by reversing the motion of the rolls, and for this reason the sides of the table are greatly inclined, and so also that two persons may attend the machine at the same time.

I therefore claiml. In a flax or hemp dressing machine, the combination of a pair of reciprocating feedrolls with a continuously-revolving beatingcylinder, substantially as described, and for the purposes set forth.

2. The combination, with the upper feedroll F and the lower feed-roll G, having the pinion M, of a rack and its lever, the beatingcylinder, and suitable intermediate gearing, substantially as described.

JOHN STEWART.

Witnesses:

CHARLES WA LL, BOYD ELIoT.

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