US176911A - Improvement in modes of finishing horseshoe-nail blanks - Google Patents

Description

- z Shee't s -Sheet 1m 5 WHYSALL, Th8; C. M. MERRICK. 7

, MODE OF FINISHING HORSESHOE NAIL BLANKS. No.175,911. Patented May 2,1876.

Fag/ A "JPETERS. PHUTO-UTHOGRAFNER. WASHINGTON, D C,

2 Sheets8heet 2. J..WHYSALL, Jr. 8v C. M. MERRICK.

MODE 0F FINISHING HORSESHOE NAIL BLANKS. N 0 176,911. Patented May 2,1876.

Fig 15.

N-PETERS, PHOTO-LITHOGRAPNER. WASHINGTON. D u.

' To all whom it may-concern: H Be it known that we, JOB WHYSALL, Jr., and CHARLES M. MERRICK, of New Brighton,- Beaver county, Pennsylvania, have invented certain Improvements inthe Manutactu-re of.

' Joi wHYsALL, JR, Linn-enema Mn BRICK, on new BRIGHTON, PA.

, lMPR'ovEMENr ime-D s FlNl S HlN G HORSESHOE-NAlL BLANKS.

Specification forming part of Letters Patent No. 176,9 ll dated May 2, 1876; application filed- February 25,1876,

Horseshoe-Nails, &c., of which the following is the specification: 1

The object of ourinvention is to operate upon apartly-formed nail-blank, and condense,-pla1v ish, and fashion the same, so that when super-.

fiuous metal is removed, by a subse uent sh earing operation, a finished nail of he desired shape willbe produced. y

In the accompanyingdrawing, Figure 1 is a plan view illustrating mechanism we employ for carrying out our invention; Figs. 2 and 3, side elevations of thedies and carriers; Fig. 4, a detached perspective view, partly in sec tion; Fig. 5, a diagram showing a modification; Figs. 6' to 9, views illustrating blanks of different forms; Figs. 10 to 12, views illustratingthe finished blanks and the completed nail; and Figs. 13 to 15 diagrams illustrating the different stages in the process of finishing.

A is the frame of the machine, which may be suitably constructed in any manner to support the bearings of four shafts, a a a -a geared together and arranged in pairs, preferably at right angles to each other. To the shafts are secured disks or segments G H IK carrying dies, the edges of which meet either in the manner shown in Fig. 1, or as shown in the diagram, Fig. 5, the object being to inclose a rectangular or other shaped space, a), smaller in area than the blank transversely, through which the latter must pass. Four dies, g h t k,

, are required for operating simultaneously upon a blank, and are secured in the respective carriers G H I K, as described hereafter, so as to simultaneously approach each other.

The forms of the dies depend upon the form of the blank to be finished. In thediagrams we have,shown them constructed to operate upon a double or twin blank, Fig. 6- that is, a blank with two heads or enlargements, at d, at the opposite ends, constituting the heads of twonails when the blank is divided. To operate upon a blank of this form each die 5 k is cut away at the edge to form two recesses, 3 3, and a curved edge, 2, coinciding in form with one side, w, of the finished tan-tan Figs. 10 and 11. The edge otyuie ldie It isof a uniform curve throughout, and

that of the die g has two recesses, 4 4, two

curved edges, 5 5, and a double inclined pro; 'jection, 6, coinciding with the face 3 of the finished blank.

Fig. 13 illustrates the blank in theact of entering the "machine, its lower head d ina position to enter the opposite recesses'3 3. The rotation of thedisks I K in the direction of the arrow 1 carries the blank downward through the opening 00, and as said opening,

is smaller than .the tran'sverse area of the fblank,the latter is condensed and elongated, the superfluous metal being either condensed or forced or drawn upward in the direction of the arrows 2, Figs. 13 and 14, the upper head of the blank being formed into the head d in the second set of recesses 3 3, and cutters t t being arranged on the edges of the disk to cut off the superfluous metal. t

During the above operations the lower head 01 was shaped at the front by the inclined face of the recess 4, Fig. 15, in the die 9, the thickness of the blank was gradually reduced toward the center from each end, and an indentation made in the center by the projection 6, without spreading the blank, forming two beveled faces, w w, which, when the blank is subjected to the finalshearing operation to ing greater strength to the nail, especially at the beveled point, where the metal is condensed to the greatest extent, and where the greater density is requisite.

To operate upon twin blanks ofthe form shown in Fig. 8, recesses in the edges of the dies must be shaped as shown at an" in Figs. 3 and 4, and when a single blank, Fig. 9, is to be operated on, the dies are of the forms shown at y, the operations being the same iu all cases- When the blanks are to be completed in a separate machine the dies may be formed to impart to the blanks the shape required at any one of the series of operationstowhich the blanks are subjected. f

In order to secure the proper adjustment of the dies the boxes a. a of the shafts are attached adjustably to the frame, screws 8 hearing against. the boxes and imparting the requisite adjustment.

It will be apparent that several dies, suit.

able to operate upon blanks of different forms,

maybe secured to each carrier, as shown,

and that reciprocating segmental die-carrriers may be substituted for rotating carriers. The dies consist of platesor blocks of steel or other material, 76, fitted into recesses in the carriers, Fig. 4, in which they are secured by plates or rings h h clamped to the carriers by screws at opposite sides, and bearin g against the dies, which are slightly thicker than the carriers, to insure their contact with the clamp-.

1. Themode of reducing horseshoe-nail blanks byrolling the partly-formed blanks while cold, jointly with the mode described of executing said rolling operationthat is to say, bymeans of four converging die-rolls acting simultaneously upon the four sides of the blank, substantially as set forth.

2. The mode described of forming the beveled face upon a partly-formed horseshoe-nail blank-that is, by subjecting the blank to the action of converging rolls acting simultaneonsly on allthe faces of the blank, and confining it at all, sides, while a projection on one of the dies imparts the beveled face without spreading or forcing the metal into a permanent recess, as set forth.

3. In finishing nails for horseshoes, the process of beveling the points by indenting and condensing'the metal without spreading in dies that close upon the metal on all sides, and then removing the superfluous parts,

thereby forming a nail with a solid, dense,

beveled point, as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOB WHYSALL, JR. (J. M. MERRIOK.

Witnesset:

CHARLES E. FOSTER, COURTNEY A. OOoPER.

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