US248322A

US248322A - Screw-press

Info

Publication number: US248322A
Authority: US
Publication date: 1881-10-18
Anticipated expiration: 1898-10-18

Description

J. JACOBS;

SCREW PRESS. v

(No Model.)

Patented Oct. 18,1881.

UNTTE ST TES PATENT Trice.

JAMES JACOBS, OF MAYSVILLE, KENTUCKY.

SCREW-PRESS.

SPECIFICATION forming part of Letters Patent No. 248,322, dated October 18, 1881.

Application filed June 13, 1881. (No model.)

To all whom it may concern:

Be it known that I, JAMES JACOBS, a citizen of the United States, residing atMaysville, in the county of Mason and State of Kentucky, have invented certain new and useful Improvements in Screw-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 appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to screw-presses for packing tobacco and other like material; and it consists in the construction, adaptatiomand application to a screw-shaft of an adjustable lever-nut, as will be hereinafter more fully set forth.

In the drawings, Figure 1 is a side elevation of my invention, partly in vertical section; and Fig. 2 is an enlarged transverse section of same cut through line or 00 of Fig. l.

Passing through a fixed nut, B, which is rigidly attached to a cross beam or head, 0, (shown in dotted lines, Fig. 1,) is ascrew-shaft, A. A feather or key groove, (1, is longitudinally cut in the screw-shaft parallel to the axis thereof. A corresponding groove is cut in an adjustable nut, D, and forms, in conjunction with groove a, a seat for key E. Lever-arms d are also constructed upon theadjustablenut D, and are each provided with a socket, into which is placed a removable lever, F. (Shown in dotted lines, Fig. 1.) The lower end of the screw-shaft rests in a socket constructed in the upper surface of a flanged presser-block, G. A set-screw, g, passes through the wall of the socket, the inner end of which rests in an annular groove, b, cut in the shaft near its base. By means of this device the presser-block is relieved from the rotary movement of the shaft.

In packing tobacco or other like material in barrels or boxes, and in order to keep the lever-sockets (heretofore immovably attached to the shaft) from descending below the top edge of the barrel, it has been the custom to place supplemental blocks under the presscr-block G as the material to be pressed sank under the pressure of the screw. When these blocks were required it was necessary to reverse the power and temporarily lift the presser-block up out of the way.

In my improved press the use of supplemental blocks is dispensed with, as the presscrblock G continues to descend upon the yielding tobacco. The lever-nut D, carryingleversockets d, is made adj ustablc, and can be raised from time to time to the requisite point by removing the key E from its seat, screwing the nut up to the desired height, and reinserting the key in the grooves a and c after the latter have been brought opposite each other.

Having thus fully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. In a screw-press, the screw-shaft A, fixed nut B, and adjustable lever-nut D, substantially as described.

2. In combination with screw-shaft A, provided with groove a, the lever-nut D, provided with groove 0, and key E, substantially as described.

8. In combination with screw-shaft A, nut B, and loosely-attached presser-hlock G, the adjustable lever-nut D, provided with socketarms d, substantially as described.

In testimony whereof I a-ffix my signature in presence of two witnesses.

JAMES JACOBS.

Witnesses J. B. Novas, W. B. PARRY.