US699732A - Press. - Google Patents

Description

No. 699,732. Patented May l3, I902.

J. P. WILLIAMS.

PRESS.

ication filed Dec ,1901. (No Model.) -3 Sheets$heet l.

Patented May I3, I902.

3 Sheets Sheet 2.

m s m M 2 Us L d Mum u P m m No. 699,732. Patented May I3, I902.

J. P. WILLIAMS.

PRESS. (Application filed Dec. 2, 1901.) (No Model.) 3 Sheets-Sheet 3.

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STATES lTE PATENT OFFICE.

- JAMES P. \VILLIAMS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO BALL AND SOCKET MANUFACTURING COMPANY, OF CHESHIRE, CONNECTICUT, AND BOSTON, MASSACHUSETTS, A CORPORATION OF'CONNEC'IICUT.

PRESS.

SEECIFLEGATI'QN forming part of Letters Patent No. 699,732, dated May 13, 1902..

Application filed December 2, 1901. Serial No. 84,307. (No model.)

To a, whom it may concern:

Beit known that 1, JAMES P. WILLIAMS, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement lH'PIGSSGS, ofwhich the following is a full, clear, and exact description, reference being had to the accompanying drawings, forminga part of this specification, in explaining its nature.

The invention relates to an improvement in presses, and it is shown as applied to a hand-press especially adapted for use in setting buttons, fasteners, and similar articles to garments, gloves, and material.

It consists in the specific adaptation of means to ends, whereby a very strong, simple, compact, powerful, and handy instrument is obtained.

The mechanism whereby this result is secured will be described in detail in conjunction with the drawings forming a part of this specification, wherein- Figure 1 is a View in side elevation of the frame of the press and the works thereof, one side of the frame being removed and the parts being shown in their normal inoperative position. Fig. 2 is a view of the frame and the same parts at the end of their operative movement, the operating-handle being shown by dotted lines rather than by full lines. Fig. 3 is a view in front elevation of the press when the parts are in the position representedin Fig. 2. Fig. 4 is aviewin rear elevation in front of the dotted line 4 4 of Fig. 2.

Referring to the drawings, A represents a bench-frame. It is in the form of a hollow casting having a base, an integral side, and an integral edge,making a cavity a for holding the Works and which is adapted to receive a removable side a, forming a covering-plate. The bed a supports theadjustable holder or die 13, which is vertically movable in the bed in any desired way. I have represented it as having an exterior thread fitting a threaded hole in the bed, by means of which it maybe turned up or down, and I have shown itas locked in its adjusted position by a lockingscrew a The overhang of the frame has brackets a a, provided with holes a" which line with each other and with the hole in the bed and in which is mounted a plunger C, the lower end 0 of which forms a die or holder, the upper end 0 of which receives pressure. A coiled spring 0 envelops the plunger between the brackets, rests upon one, and is connected to the plunger to be compressed thereby and to exert a lifting action upon it upon the release of operating pressure. These parts do not Vary from similar parts common in this type of press.

D is a lever which is carried by the overhang in the cavity a and attached thereto by trunnions or a pivot 01. It has-a relatively short outwardly-extending end d,which bears against the upper end 0 of the plunger, anda long downwardly and inwardly curved arm (1 contained in the cavity. The end of the curved arm is connected witlithe frame at d by means of an ear or lug d on the frame and the toggle or knuckle links d d, the-knucklelink d being pivoted to the ear (1 and the knuckle-link d being pivoted to the knucklelink d and to the end of the lever-arm OF. A draw-link d having two legs separated from each other by a space sufficient to permit them to straddle the toggle and lever end (1 is pivoted to the toggle-links by the pivot which connects them and is also pivoted at its upper end to theend of a short rock-lever E upon the cross-shaft e, mounted in the head of the frame over the pivotal point 61 of the toggle. One end of the shaft extends from the side of the frame and carries an operating-arm 6, having the handle 6 by means of which the toggle is straightened, the lever moved, and the plunger operated.

The arrangement, proportion, and pivotal points of the parts are such that a relatively 0 large degree of movement is provided the plunger as well as a powerful compressing action at the end of the movement.

In Fig. 1 I have represented the position of the parts when in their-inoperative position, and in Figs. 2 and 3 the position of the same parts at the end of a compressing or attaching movement. A stop 6 is so located with respect to the rock-lever E as to prevent the toggle d from being straightened sufficiently loo to lock the parts at the end of the compressing movement. This permits the spring to automatically return the parts to their inoperative position and hold them in such position upon the removal of the hand from the handle of the operating-arm. The stop also serves to protect the parts of the movement operated by the crank from injury by breakage from an excess of pressure and permits lighter parts to be used for developing the power than could otherwise be employed. The operating-handle is so placed upon the frame as to be moved downward and forward to secure an operative action of the press,

and this position and operation of the handle are desirable because the handle is held out of interfering position when not used and when in use is first readily swung down by the weight of the hand and then forcibly swung forward by a pulling draft upon it. It will be noticed that the crank is so connected with the toggle and that the toggle, crank, and lever are so pivoted and arranged in relation to each other that the turning of the crank causes a drawing or pulling movement to be exerted upon the toggle in straightening it from a position over the lever and toggle and in advance of it. This draft upon the toggle is secured by the drawing-link, which is by the crank moved forward and upward above the lever and toggle. The toggle so actuated causes the inner end of the lever to be lifted and its outer end to be depressed upon the plunger, moving it first rapidly and then more slowly, but with a very great increase in power. There is thus provided not only a very correct application of movement and power to the plunger, but also an economy of space and compactness of construction, which are desirable. Another advantage of the construction arises from the fact that little, if any, machine-work is required in making the parts and fitting them to each other and to the frame, the principal machine-work consisting in the drilling of the holes for the pivots or bearings of such parts as'are attached to the frame.

I prefer that the crank and the lever be so formed as to straddle the end of the draftlink and the end of the toggle-link, as represented in Fig. 4, in order to avoid torsional strains, and also that the ear or lug to which the lower link of the toggle is pivoted be correspondingly formed and for a like purpose.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a press, the combination of the frame of the press, a plunger carried thereby, a lever pivoted to the frame to engage the plunger, a toggle beneath the lever pivoted to the frame and to the end of the lever, a crank above the lever, and a draft-link connecting the crank with the toggle.

2. In a press, the combination of its frame having a bed and a die or holder carried thereby, a plunger supported by the frame, a plunger-actuating device comprising a lever pivoted to the frame, a toggle connecting the end of the lever with the frame and arranged beneathit, ashaft above thelever and the toggle, a crank upon said shaft, a link connecting said crank with the toggle, a stop for limiting the extent of movement of the toggle, and a plunger and Works returning and holding spring.

3. In a press, the combination of the frame, a plunger, means for moving it in one direction comprising alever, a toggle below the end of thelever connecting its end with the frame, a shaft above the lever, a handle for turning it, a crank upon said shaft, a draft-link connected with the crank and straddling the lever and toggle and connected with the toggle, and a plunger and works returning and holding spring.

JAMES P. WILLIAMS.

Witnesses:

F. F. RAYMOND, 2d, J. M. DOLAN.

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