US631573A - Adjustable press. - Google Patents

Description

Patented Aug. 22, I899.

w. c. & J. P. KELLY.

I 2 Sheets-Sheet L No. 633L573.

ADJUSTABLE PRESS.

\Application filed Aug. 8, 1898.

(No Model) INVENTOHS.

Wuzmm CCKei/L 9 James Rifel y,

W/TNESSES m v V l g My A77 NE).v

UNITED STATES PATENT OFFICE.

WILLIAM C. KELLY AND JAMES P. KELLY, OF ALEXANDRIA, INDIANA.

ADJUSTABLE PRESS.

SPECIFICATION forming part of Letters Patent No. 631,573, dated August 22, 1899.

Application filed August 8, 1898, Serial No. 688,100- (No model.)

T0 at whom it may concern:

Be it known that we, WILLIAM C. KELLY and JAMES P. KELLY, citizens of the United States, residing at Alexandria, in the county of Madison and State of Indiana, have invented certain new and useful Improvements in Adjustable Presses, of which the following is a specification.

In the manufacture of axes, hatchets, and such like tools that variety of dies known as box-dies are most generally employed in giving the forgings their proper form. Such dies are commonly composed of two mating halves, each containing one-half of the matrix-cavity. It is, as is well known to axmanufacturers, desirable to make each size or variety of axes (while otherwise the same) of several different sizes or weights, the difference in weight being in the head or poll of the ax above the eye for the handle. For example, when axes of three different weights of any given size or variety are required (as four pounds, four and one-fourth pounds, and four and one-half pounds) it becomes necessary to make three complete sets of dies, with the attendant multiplication of expense. The cutting of matrix-cavities in die-blocks is at best a work involving considerable labor, especially in the making of box-dies, in which the head or poll end of the cavity must be chipped and filed out by hand. Thework of making open dies is much more easily and less expensively performed and may be mostly done on a planing or milling machine. These open diesthat is, dies with the head ends cut or planed completely out, thus permitting the heated metal of the blank being operated upon to flow out from the eye toward the head end of the ax or other forging have in themselves long been well known; but the means of confining the metal therein has been unsatisfactory, or when no means for confining it were provided and the work of. finishing the ax-poll was left to a subsequent operation the labor, and consequently the expense, has been greatly increased. Of the means for confining the metal some have had a yielding character, with the result that continuallyvarying and uncertain sizes and qualities of axes were produced, and some have had complicated and difficultly-operated mechanisms.

The object of our present invention is to provide'a press in which all the advantages 'of solid box-dies may be secured, while the dies can be varied definitely to permit the manufacture therein of two or more certain, definite,and predetermined sizes of axes,thus reducing the number of dies necessary to be used, and enabling said dies themselves to be produced at about the cost of ordinary open dies.

A machine embodying said invention will be first fully described,and the novel features thereof then pointed out in the claims.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts, Figure 1 is a side elevation of a droppress, otherwise of an ordinary and wellknown form, embodying our present invention; Fig. 2, a horizontal sectional view, on an enlarged scale, showing the parts to which said invention especially relates in top plan, as seen from the dotted line 2 2 in Fig. 1; Fig. 3, a vertical sectional View on the dotted line '3 3m Fig.2; and Fig. 4,a horizontal sectional View, on a still further enlarged scale,

on the dotted line 4 4 in Fig. 3, showing the details of construction of our preferred means of adjusting the head-die more plainly.

As hereinbefore indicated, this invention is intended to be applied to and used with the ordinary drop-press commonly employed in the manufacture of axes and such like arti- 'cles. In the drawings the portions marked A represent the columns or frame of such a press, 13 the anvil, and O the drop. The die members D and D are the ordinary box-dies with open ends. Within these open ends a third or head die E is placed, and this die is carried upon the end of a heavy rigid bar F, which extends to outside the'frame of the press, where a heavy rigid fixed abutment is provided. This abutment preferably consists of two heavy uprights G, having a space between them siiflicientlylarge to permit the insertion and withdrawal of the bar F and a heavy metal plate H, secured to the face of said uprights. This plate has a central opening through which the bar may pass and a mortise arranged transversely to said opening, within which a block I may be placed. This block is adjustable, so that any desired position of the bar F may be provided for. As best shown in Fig. 4, we have made the rear side of the mortisein the plate II, through which the block I passes, inclined and the corresponding surface of said block tapered, so that said block as a whole is somewhat wedge-shaped, while its front side, against which the bar F bears, is nevertheless at right angles with said bar, so as to support it in the most direct and positive manner. Setscrews 3 or other suitable clamping devices may be employed to hold the block firmly in its adjusted position.

.Ve have shown a hanger-rod R, having a turnbuckle T therein for adjusting the posi tion of the bar F accurately; but manifestly any other suitable supporting means may be employed, or a recess may be formed in the face of the block I, into the rear end of which said bar F may enter and by which it may be supported without the interposition of any independent support. e prefer the rod R and turnbuckle T, however, as not only admitting of a ready assembling and disassembling of the parts, but as constituting an easy means of exact adjustment. It is also obvious that other means than that shown for adjusting the block I maybe employed without departing from our invention, the adjustability of this block rather than the means of effecting the adjustment being the important feature of this element of the invention.

The die E and bar F are shown as constructed separately and separably connected. This is the most convenientconstruction and admits of the removal of the die separately for change or repair; hutin use the two parts are in effect integral and may be made so in fact without departing from our invention. Vhile the adjustment of the die E is shown as effected by the adjustment of the bar F and the point at which the adjustment of said bar F is madeis shown as at the extreme outer end thereof, of course the adjustment maybe made at any point desired, so long as the desired position of said die E is secured, without departing from our invention, although we regard the arrangement shown as probably the simplest and best for the purpose.

It will be readily seen, as has already been indicated, that by the use of our invention we are enabled to use a single set of dies for several different sizes or weights of axes by merely adjusting the die E longitudinally, while much of the tedious work of chipping and filing in the manufacture of the dies themselves, which is inseparably incident to the making of complete box-dies, is avoided, as well as the large accumulation of such dies where numerous weights of 'each pattern are to be provided for. The greater portion of the labor incident to changing dies in the press, when a different weight of forging is desired, is also completely dispensed with. The operation of the press in use is substantially the same as when the ordinary solid box-die is used, and secures an equal certainty and uniformity in the size and character of the product.

Having thus fully described our said invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination, in a press, of box-dies the cavities wherein are open at one end, a third die entering and resting within the prolongation of the die-cavity, a stiff bar carrying said third die, a rigid abutment for holding said bar,and means for adjusting the bearingface of said rigid abutment out or in,whereby the size of the die-cavity may be varied and different and predetermined sizes of forgings thus produced, substantially as set forth.

2. The combination, in a press, of the upper and lower dies containing the matrix-cavity, which cavity is prolonged on one side to the surface of said dies, a third die entering said prolongation, a rigid bar carrying said third die, a rigid supporting-abutment alongside said die, an adjustable block carried by said abutment against which said bar comes in immediate contact, and means of adjusting said block.

3. The combination, in a press, of box-dies the cavity wherein is prolonged to one side thereof, a third die resting in the prolongation of the die-cavity,a bar carrying said third die, a rigid abutment against which said bar rests and by which it is held to its predetermined position, means for adjusting said rigid abutment out and in, and an adjustable hanger supporting the outer end of said bar, which rests against said abutment, substantially as set forth.

4:. The combination, in a press, of the upper and lower box-dies the cavity wherein is extended to one side thereof,.a third die resting in said cavity, a bar carrying said third die, and arigid but adjustable support forsaid bar consisting of the uprights G, the metal plate or block II secured thereto, and the movable wedge-shaped block I carried in a suitable bearing therein, substantially as set forth.

5. The combination, in a press, of box-dies the cavity wherein is extended to one side thereof, a third die resting in the prolongation of said cavity, a bar carrying said third die, an abutment for said bar consisting of two heavy uprights G having a space between them through which the bar may be introduced to position, a heavy bridge-plate II secured to said uprights and having a central opening therein through which said bar may pass and also provided with extensions containing a bearing the rear side whereof is inclined, a tapered block I resting within said bearing, and means whereby the same may be secured in adjusted position, substaut ially as set forth.

In witness whereof we have hereunto set our hands and seals, at Alexandria, Indiana, this 3d day of August, A. D. 1898.

WILLIAM c. KELLY. it. s.'] JAMES P. KELLY. r.. sf]

Witnesses:

E. '1. IRELAND, En. II. KENT.

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