US442813A - Method of making ferrules for cant-hooks - Google Patents

Description

(No Model.)

B. MANSFIELD. METHOD OF MAKINGFERRULES FOR CANT HOOKS.

No. 442,813. Patented Dec. 16. 1890.

Ema/16 $1M? UNITED STATES PATENT. @rrrca;

EDIVARD MANSFIELD, OF ORONO, MAINE.

METHOD OF MAKING FERRULES FOR CANT-HOOKS;

SPECIFICATION forming part of Letters Patent No. 442,813, dated December 16, 1890. Application filed September 22,1890. Serial No. 365,725. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD MANSFIELD, a citizen of the United States, and a resident of Orono, in the county of Penobscot and State of Maine, have in vented new and useful Improvements in the Method of Making Ferrules for Cant-Hooks, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention relates to improvements on the patent granted to me January 31, 1888, No. 377,038, for a method of making ferrules for cant-hooks, and it is carried out as follows, reference being had to the accompanying drawings, wherein- Figure 1 represents a plan view of the metal plate from which the ferrule is made. Fig. 2 represents a perspective view of the blank from which the staple is formed. Fig. 3 represents such staple-blank temporarily attached to the ferrule-plate previous to and during the operation of welding such parts together. Fig. 4: represents a cross-section on the line X X, shown in Fig. 3. Fig. 5 represents a sectional View showing the punch and die for welding the ferrule-plate and staple together. Fig. (3 represents a sectional view showing said ferruleplate and staple after being welded together. Fig.7 represents a perspective view of the ferrule after being closed and welded together, and Fig. 8 represents a central longitudinal section of the finished ferrule with its wooden handle and the cant-hook pivoted to the staple of said ferrule.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

In carrying out my invention I proceed as follows: I first cut or punch out from weldsteel or suitable forged 01' wrought metal a plate or ferrule-blank a, through which I make slotted perforation a, as shown in Fig. 1. b in Fig. 2 is the staple-blank, which is also preferably made from weld-steel, and provided with a vertical slit 1), which latter may be made, preferably, by means of a saw while the blank is heated. Said slitted staple-blank is then temporarilysecured to the perforated portion of the ferrule-blank a, preferably by means of a metal wedge 0, (shown in Figs. 3 and 4,) for the purpose of holding the stapleblank I) in its proper position onthe plate a during the process of heating and welding together said parts. After the staple-blank b and the plate a have been heated to a weld ing heat I place the plate a on top of a dieblock cZ,Fig. 5,having a recess cl corresponding to the exterior form and size to be given to the staple and having a perforation r, adapted to receive the punch e, which is of a size and form equal to the openingdesired to receive the eye of the cant-hook. The punch e is attached to or forms a part of a plunger 6, as is common in drop forging or welding machines. Duringthisweldingoperation the plate a is placed upon the die-block (l, with the staple-blank Z) projecting upward, as shown in Fig. 5. During the descent of the plunger e the punch e enters the slit in the staple-blank and passes into the die-block perforation and as the plunger 6 continues to descend it causes the staple-blank to be forced into the recess 61' on the opposite side of the plate a, leaving the now molded and welded staple projections on the outside of the ferrule-blank, asrepresented in Fig. 6. The advantage of this method over the one described in my above-mentioned patent is that the staple is more firmly welded to the plate a, causing a part of the staple to be lapped over or expanded on the inside of the plate a in the form of lips or flanges I)" b,

(shown in Fig. 6,) by which anincreased weldin g-su rface is obtained between the parts, and consequent increase of the strength at the welded joint. I also obtain a more even and finished appearance of the staple where it joins the exterior of the ferrule. After such parts are welded together I repeat them and bend the plate a around a conical mandrelf (shown in dotted lines in Fig. 7) and weld the overlapping edges of said ferrule at a, as shown in Fig. 7. The ferrule is now finished, and I drill or punch a hole through the staple b for the reception of the bolt or rivet g, to which the eye h of the oant-hook h is pivoted, as shown in 8.

and finally bending the latter in the form of a conical tube and Welding its abutting orover- I 5 lapping edges together, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 12th day 20 of September, A. D. 1890.

EDYVARD MANSFIELD.

Witnesses:

ALBAN ANDREN, JULIA RICHARDSON.

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