US364995A

US364995A - John melvin drew

Info

Publication number: US364995A
Authority: US
Publication date: 1887-06-14
Anticipated expiration: 1904-06-14

Description

(No Model.)

J. M. DREW.

COTTON AND COTTON SEED PRESS. No. 364,995. Patented June 14, 1887.

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UNITED STATES PATENT OFFICE.

JOHN MELVIN DREW, OF WASHINGTON, TEXAS.

COTTON AND COTTON-SEED PRESS.

SPECIFICATION forming part of Letters Patent No. 364,995, dated June 14, 1887.

(No model.)

To all whom it may concern:

Be it known that I, J OHN MELVIN DREW, of \Vashington, in the county of Washington and State of Texas, have invented a certain new and useful Improvement in Cotton and Cotton-Seed Presses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being hadto the accompanying drawing, which forms part of this specification.

My invention relates to an improvement in cotton compresses and cottonseed presses; and itconsistsin thecombination ofasuitableframework, the follower, two sets of toggle-arms which are operated by a screw, and two sets of toggle-arms which extend at right angles to the two sets which are operated by the screw, and which second set are operated by a rope and tackle, as will be more fully described hereinafter.

The object of my invention is to produce a .Very powerful press in which the follower is operated by four sets of toggle-joints, two of which are operated by a screw and the other two by a rope and tackle, so as to produce twice the amount of power usually exerted in. toggle-joint presses.

The accompanying drawing represents a perspective of a press embodying my invention.

A represents a suitable frame-work; B, the follower, and O the stationary head in the framework. Pivoted bot-h to the under side of the stationary head 0 and to the top of the follower B are the four sets of toggle-arms D G, the two pairs D being operated by the screw H, in the usual manner. The two pairs of arms G extend at right angles to the ones D, and are provided with tackle I, around which the rope J is passed. There will be any desired number of pulleys in the tackle I, so as to enable any desired leverage to be applied to the arms G through the rope J. This rope J extends away to any suitable drum or operating mechanism, and the screw H is operated by a belt, which passes around a snitable pulley upon the end of screw-driving shaft. When the engine is set in motion, the screw H is made to operate the two sets of arms D at the same time that the arms G are operated by the rope J. Power being applied to each set of arms, they operate together in forcing the follower downward, and thus exei t double the amount of pressure which is usually employed in presses of this kind. The screw H serves to retract the follower and hold the parts rigidly in any desired position. While the screw is being operated to raise the parts the rope J is slackened, so as to allow the two sets of arms G to freely-separate under the action of the screw.

Having thus described my invention, I claim- In a press, the combination of the four sets of toggle-arms, the screw H, the tackle I, and the rope J, the screw being made to operate two sets of the arms, and the rope J, extending at right angles to the screw, being made to operate the other two pairs, substantially as shown and described.

In testimony whereof I affix my signaturein presence of two witnesses.

JOHh MELVIN DRINV.

\Vitnesses:

FAYETTE SMITH, C. P. MONROE.