US28429A - Improvement in power - presses - Google Patents

Description

, UNITED STATES PATENT OEEICE.

JAMES VED, OF MUSGATINE, IOWA.

IMPROVEMENT IN POWER PRESSES.

Spccilication forming part of Letters Patent No. 28,429. dated May 22, 1860.

To @ZZ whom, t may concern,.-

Be it known that I, JAMES WEED, of Mus` catine, in the county of Muscatine and State of Iowa, have invented a new and Improved Progressive-Power Press, designed for compressing hay, cotton, and other substances for baling; and I do herebyI declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in whichw Figure l is a front sectional view of my i-nvention, taken in the line :c x, Fig. 2;, Fig. 2, a side view of the same.

Similar letters of reference indicate corresponding parts in the two iigures.

The object of this invention is to obtain a progressive-power press by which the power may be applied in a manner commensurate with or in the same ratio as theincreasing resistance of the article under compression.

In all the progressive-power presses that have been hitherto devised-at least all that have passed under my observation-the power has been gradually progressive-that is to say during the operation of the press the power has increased in a regular ratio, and not corresponding with the resistance offered by the article under compression.

The within-described invention consists in the employment or use of togglesz applied to the press in such a way as to admit of repeated application of power near the termination of their movement, and thereby effect the desired end, so far as the application of power is concerned.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a framing, which may be constructed in any proper way to support the working parts of the press; and B is a rectangular upright framing, which is secured in the framing A, and which contains the pressbox G.

D is a follower which works in the pressbox C, and is attached to the lower ends of uprights a, which are fitted in theframing B- two at each side-and are allowed to slide freely up and down therein.

E is a rotary bearing-plate which forms the upper end of the press-box C, as shown clearly in Fig. l.

F F represent two toggle-frames, which are placed one at each side of the framing B. The lower ends of these toggleframes are attached to the lower part of the framing B, and their upper ends are attached to the ends of the horizontal bars G G, which are fitted invertical slots b in the upper ends of the uprights a, as shown clearly in Fig. 2. The upper ends of the uprights a are connected by transverse bars c, which are provided with end pieces, d, and to these end pieces indented pendants e e are attached by pivots f. rlhe lindentations in the pendants form step-like projections or ledges l 2, which are shown more particularly in Fig. 2.

The outermost l pendant e of each end piece, d, has a spring,

g,` bearing against it, and these springs have a tendency to keep the pendants e pressed against the bars G G, and the latter always 'I bear upward against either of the ledges 1 or f 2 at the sides of the pendants e e.

The togl gle-frames F F are each formed of two bars,

f h h, connected by cross-bars i.

ing the toggleframes together.

Any proper form of joint, j, may be employed for connect- This arrangevat certain times over the upper ends of the The fol-lower D has two end pieces, k k, projecting ont from each side of the framing B. Against these end pieces, k k, bars H are arranged by springs Z Z, and the inner sides of these bars,which bear against the end pieces, k, are notched so as to form shoulders or steplike projections 2 3, as shown clearly in Fig. 2. To the framing B, directly above the bars H, spring-catches a" are secured. These catches have each a bent bar, o, attached. the form of which is shown in Fig. il, and said catches fit bars H, as will be .presently explained. To

the uprights a pins p are attached, so as to project horizontally therefrom, and similar pins, q, are attached to the framingB.

In the framing B, just above the press-box C, there is placed a horizontal shaft, I, to the outer ends of which a wheel, J, is attached.

The shaft I has ropes or chains r connectedto it, and which wind around it in opposite directions. The outer ends of the ropesor chains o are attached to the centers ofthe toggle-frame. Ihe wheel J is provided with a series of peripheries of different diameters, as shown clearly in Fig. 2. The wheel being in effect a cone of pulleys, around each periphery of the wheel J an endless rope, K, is placed, each rope passing around a pulley, s, so as to render a portion exposed, that it may be grasped by the hand of the operator. This will be fully understood by referring to Fig. l.

The operation is as follows: At the commencement of the operation, the follower D is depressed or lowered to its fullest extent. Ihe press-box Gis then filled, or the requisite amount ofthe article to be compressed placed in it, and the wheel J is rotated. As the shaft I turns, the ropes or chains r are wound upon it andthe toggle-frames F drawn inward toward the framing B,the former elevating the follower D, and consequently compressing the contents ofthe press-box C. The toggle-frames F,when drawn inward to their fullest extent, elevate the follower D as far as they are capable of doing at 'the first operation, when the bars G bear against the under sides of the end pieces, d d, and at the close of this first operation the projections k of the follower D catch over the shoulders 2 of the bars H and retain the follower in the position it was left by the first movement 4of the toggle-frames. The wheel J is then turned in a reverse direction and the toggle-frames F are forced outward from the framing B, the bars G G lowering until they catch underneath the shoulders 2 of the pendants e e. The wheel J is then again turned in the direction as at first, and the followerD is again raised until the toggle-frames F become vertical or straight, and the projections 7c catch over the shoulder 3 of the bars H. The wheel J is then turned in a reverse direction as before, and thetoggle-frames forced outward -until the bars G catch under the lowermost chains r, and the toggle-frames drawn toward the framing B, the latter movement of the'togglefframes completing the pressure. When the follower D reaches its culminating or highest point at the last pressure, the catches n fit `or drop over the tops of the bars H, so that when the bale is properly bound and removed the follower D may descendhwithout having its projections 7c catch upon the shoulders 2 3 of the bars H, and when the follower reaches its' lowest point of descent, or just previous thereto, the pins p of the uprights a strike the bent rods o and throw up the catches mthereby releasing the bars H, so that the projections, 7c of the follower may catch on the shoulders of said bars, and the pins q on the framing B,

articles for baling purposes.

as the follower reaches its lowest point, throw outward the pendants e, so that the bars G may, during the rst action of the follower, 'b'ear against the under sides of the end pieces, d d.

In case the press is operated manually, the varying sized peripheries of the wheel J enable the operator to take advantage of power or time, as circumstances may require, the ropes that pass around the smaller peripheries being actuated if speed is required, and those which pass around the larger peripheries being actuated if power is required.

In case the press is operated by other power than human it may be applied to the larger periphery ofthe wheel J by means of abelt from the drum L of a vertical power-shaft, M.

From the above description it will be seen that the toggle-frames are applied several times to each bale, and the application of the powerv is when the toggle-frames are near the completion of their movement, and consequently exert their greatest power. This is the essential feature of the invention, and a very. im-

portant one, as the resistance of articles under compression does not increase in a regular ratio like the gradually-increasing power of a toggle; hence these toggle-presses hitherto constructed, which are generally termed progressive-power presses are not perfect in their operation; but. by repeated applications of the toggle-frame power, during the latter part of the pressing operation, substantially as herein shown, the article within the press-box will, without additional mechanism or eXtra driving-power,I be subjected to a pressure commensurate with the increasing resistance offered by it.

I do not confine myself to the precise means herein shown and described for admitting of repeated applications of the power ofthe toggleframes F to the follower,for various plans might be devised for effecting the result, and all operate equally well.

I do not claim the employment or use of toggle or toggle-frames for the purpose of operating the followers of presses for compressing Neither do I claim the wheel with varyin g sized peripheries. for applying a varying power to the toggles; but

Ido claim as new and desire to secure by TL A A..

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