USRE1500E - Improvement in machines for swaging shoe-tips - Google Patents

Description

' from Blanks of Sheet Metal; and I do hereby j UNITED STATES PATENT OFFICE.

THE AMERICAN SHOE TIP COMPANY, OF NEV HAVEN, CONNECTICUT, AS-

SIGNEES, BY MESNE ASSIGNMENTS, OF GEORGE A. MITCHELL.-

IMPROVEMENT IN MACHINES FOR SWAGlNG SHOE-TIPS.

Specification`f`orn1ing part of Letters Patent No. 28,888, dated June 26, 1860; Reissue No. 1,500, dated June 1G, 1863.

To all whom it may concern: C. A block,D, secured to the two posts at a Be it known that GEORGE A. MITCHELL, convenient height from the fioor or platform, of Turner, in the county of Androscoggin and supports the die box or holder E, here shown State of Maine, has invented a new and nseto consist of a quadrangular cast-iron casing ful Machine for Swaging Boot and Shoe Tips open on top, and having through each of tl e f'our sidesascrew, F, f'or properly adjusting the position of the die in relation to the plunger tion with theaccompanying drawings, is such and for holding it in position when so ada full, clear, and exactdescription of' the same justed. as to enable others skilled in the art to make The plunger I is fitted ou ways H to freely and use the same. slide in its up and down .movements along tlfe In swaging articles from sheet metal it is two upright posts B, and to be guided theredeclare vthat the following, taken in connecusual to cause the swaging-instrument which on with unerring accuracy. To the plunger' is to force it into the die to approach the sheet is adjusted, by means of a dovetail joint, a, and metal at right angles to the plane of the sheet, ledge c, the swage or follower J, whose lower or nearly so; but it has been ascertained th yit end is shaped in accordance with the interior such inode of operation is not practical for or concavity of thetip when formed. The die forming tips for the toes ot' shoes and boots. G is a solid steel or other metal cast containing By the inode of operation which constitutes a cavity shaped to conform with the outside this invention the swage approaches and form ofthe tip, the cavity or mold being so strikes the sheet-metal blank (previously cutdisposed that either or both sides, correspondto the required shape) at an angle of about ing, respectively, to the under side and the forty degrees with the plane of its surface, the upper side of' the tip, converge down and toouter surface of the die on which the blank ward a plane passing centrally or nearly so rests when first struck by the swage being at through the body of the'swage or follower in about that angle with the line of motion of the the line of its motion and in a direction parswage. In this way the required form can be allel or nearly so with the under edge of the given to form a complete tip at one operation; swage.

If' the general arrangement of the machine and this invention also consists in combining be substantially that shown in the accompanying drawingsi. e., it' the follower or swage with a die and swage having the character move in a vertical plane, the die resting on a above specified a guide or gage on that part of' the outer face of the die-block which forms horizontal table or blockthen the top of the die should be beveled, forming an angle with an obtuse angle with the plane of motion of the swage, so as to hold the sheet-metal blank in the position required relatively to that part the plane of motion of the swage of about forty ofthe die which is to form the portion of the degrees. Upon this bevelface of the die is tip which extends over thc toe of the shoe or fixed, by means of screwsi, a guide or gage, K, boot.

Figure l of the accompanying drawings is a plan view, Fig. 2, a side elevation; Fig. 3, a vertical section on line A B of Fig. l; and Fig. 4, an end view of' a machine embodying the principles of the said invention. Fig. 5 is a metal blank ready for swaging, and- Fig. 6 represents the same blank after being swaged or formed into a tip.

In the said drawings, A is the platform, upon which is firmly established the frame-work of the machine, consisting of' two upright posts, B, united at or near their tops by a cross-piece,

swage or die the metal blank. lThe guide or gage is formed of' a plate having a slot cut through it of such a shape as to snugly fit the converse side of the tip-blank, and is so adjusted onto the inclined die-face as that the part which is to form the portion of the tip that extends over the toe of the shoe or boot shall lap over and extend beyond the cavity in the die. The plate of' which the gage'is formed is of such thickness as to firmly hold the blank confined within its slot during the downward motion of' the swage and to resist to hold in the proper position relativelyv to theV obliquely on the then be reduced the thickness of the plate of the tip and finished.

The operation of the machine will be readily understood from the above description of its construction.. The machine, if operated by hand, is provided with a handle, L, connected with the plunger. This is seized by the oper ator and raised to a convenient height, where it is held wedged in the tapering slot N. blank is then placed to iit the guide or gage K. The plunger is then released from its hold and allowed to drop. The swage, penetrating the die-cavity at one stroke, forms and completes the p.

Having now fully described and ascertained the nature of the said invention and the inanner in which the same is or may be used or carried into effect, we would observe, in conclusion, that we do not coniine or restrictourselves to the precise details or arrangements which ne have had occasion to describe, as many variations may be made therefrom without deviating from the principles or main features of the said invention; but

What is claimed as the invention ofthe said GEORGE A. MITCHELL, and desired to be secured by Letters Patent, is-

l. The die-block formed to give the required shape to the outside of a shoe or boot tip, and with its outer face flat to receive and hold the specified.

2. In combination with a dieblock and swage having a mode of operation substantially as herein described, a

quired position relatively to the die, and to resist the torce of the swage when it oblique'ly on the sheet-metal blank, substantially as describe In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

first acts

Images