US122458A - Improvement in cotton-presses - Google Patents

Description

JOHN H. GROVS, OF GREENWOOD, MISSISSIPPI.

IMPROVEMENT IN l COTTON-PRESSES.

Specification forming part of Letters Patent No. 122,458, dated January 2, i872.

' subsequently pointed out in the claim.

Figure l is a. sectional elevation of the improved press; and Fig. 2 is a side elevation.

, Similar letters of reference indicate corre spending parts. y

AV is the vertical frame of the press; B, the

' box or case; C, the follower; E and F, one of the pairs of arms; G and H, the other pair 5 I, the rollers con rolling, the arms as they are moved forward and back; K and L, horizontal'bars on the upper part of the frame, one above another, forming the ways for the said rollers, M is a windlass, and M and N, cords for working the said bars.' The bars of each pair are jointed to each other at P, and provided with a roller, Q', at the said joints. Each pair is jointed to the follower at R and together at S, where another wheel or roller, T, is mounted. The windlass is mounted on one pair of j the horizontal bars, say the upper ones, L, and it may have a power-wheel on the other bars gearing with it for-driving it 5 or the crank o v pulley may be placed on its axle.

The rope M is attached to the frame, say at 4 U, passes over the pulley Q at the right hand, thence to and around roller Q at the left, thence back over the one at the right, thence over the one at the left again, and thence to the windlass, as shown, being passed around and fastened to it, so that by turningl said windlass to the right the rope will be wound on and joints P brought toward each other, by which the follower will be forced down with greatpower. For withdrawing the follower the windlass is turned back to the left to unwind rope M, and the rope N connected to the follower is pulled .down over pulley T, which moves the joints P back and raises the follower very quickly. The follower is also forced down quickly, and the effect of the power on the cotton increases as the resistan cein creases by reason ofthe shifting-of the leverage in favor of the power due to this arrangement of togglejointed arms.

Having, thus described my invention, I

claim as new and desire 'to secure by Letters Patent- The arrangement of the levers E G,pivoted to the follower C, and the levers F H, provided with the pulleys Q QT between the knucklejoints and the wilnllass mechanism MVM N, all constructed substantially as and for the purposes set forth.

JOHN H. GROVES.

Witnesses A. J. Looms, YEDwD. HOMER.

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