US105054A - Improved machine for attaching ornaments to chain-links - Google Patents

Description

llt-niiet glatte @met @Wire VIRGIL DRAPER, or ATTLEBOROUGH, MASSACHUSETTS, ASSIGNOR To oScAR M. DRAPER, 0F 'SAME PLACE.

' Leners Patata in. 105,054, daad July 5, 1870.

'num-oven Maenner: Pon ATTACHING- ORNAMETS To tJHAImLINKS.

The schedule referred to in these Letton Patent and making part of the lame.

To all -whom it may concern:

Be it known that I, VIRGIL DRAPER, of Attleborough, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Devices for Attaching Ornamentseto' Chain Links; and I do hereby vdeclarethat the following specification, taken in connection with the drawing making a partof the same, is a full, clear, and exact description thereof. The improvement hereinafter' described resides in a means whereby ring and band ornaments of various kinds used in the manufacturing jewelers art may, by

the operation of swaging, which gives form and charaoter to such -ornaments, be, at the same time, mechanically attached and secured to the particular articlewhich they areintended to beautil' .In the drawing, an apparatus is shown specially adapted for use in applying the improvement in the ornamenting of chain-links.

Figure l is a plan.

Figure 2 s a sectional elevation.

Figure 3 exhibits, in detail, one of the part-s to be referred to.

Figure 4 shows one of thccompleted links in a chain. l f

A is a bed-block, furnished with four ear-pieces, B, in sets of two, opposite to each other, through which screw-holes are tapped, to' allow the 'introduction of clamp-screws, O.

A steel die-block, l), is let into the center of the bed-block, and divided into quadrants by two channels, which intersect each other at right angles, and in the line o'f'the axcs of the two sets of compressing screws.

The length, depth, and width of one, at least, of these channels should be sullicient to receive the chain-link, or other article to be ornamented, and that one ot' the channels so to be used should be provided with a bed-die, a, as seen at iig. 2. E E are two holders for the link to be operated on, specimens of which links are seen at lz, fig. 4, ahd are supposed to have been previously cut from sheet metal, or otherwise'matle by any of the known ways.

These holders are steel prismatic-shaped pieces, fitted to lie in one of the channels in the die-block D. Mortises' are cut in their ends, equal, in their aggregate depth, to the length of the link, less the thickness of the'ring or bar ornament, and so that, when the ring omament which is to be swaged has been placed in its intended position on the link, the ends of the holders E E shall abut against the sidesfof the blankl for the ornament, and act as die-faces when the swaging operation is performed.

The link having beenentered into the mortise of one ofthe holders,ha ring previously prepared, and which is the blank for thef ornament c, fig. 4, is slipped onto the link, the depth to which thc link enters-the mortise constituting a convenient gauge to determine its position, and the remaining portion ot' the link is entered into the lmortise of the other holder. The

holders, with the link and the blank for the ornament being as shown at g. 3, are then placed in their proper position in the bed-block, iig. 1, and the clampscrews C are set up. The bottom edge oi`-the blank for the ornament rests upon the top surface ofl the beddie a, as seen at fig. 2. The compressingfdies d d, operated by the other set ot clamprscrews, are made to bear against the ends ot' the blank, as seen at figs. 1 and'2. The blank so clamped, in connection 'with the link to -which it is to be attached, is placed under;- t-he plunger F of a power press, and swaged. Its exterior outline will be determined by the shape of the several dies which, in combination with the plunger, act to form it, and, at the same time, it will, by compression, be made to gripe the link so firmly as .to become mechanically attached thereto.

It will be well to punch thelink with a slit or hole-, wholly or partially through it, at the point where the ornament is to be applied, (and the drawing so repre'- sents the link as made,) the purpose of which is to enable the metal of the blank, by the swaging operation, to be crowded into the opening in the lyipk, to absolutely insure its remaining fixed in its position.

Heretofore ornamental attachments of the character described have usually -been secured iiJ place by the aid of solder, after which operation the link requires to be cleaned and polished, the ornament itself beingr formed by a separate operation. By the use of the devices described, no solder is required, and the ornament can be applied to thelink after the latter has been otherwise ljuishcd, and with great advantage in economy of labor and excellence of workmanship, it being formed into shape and secured in place by one sin gle operation.

I `do not claim, broadly, a bed-dic, a punch, and A compressing-dies, in combination with an interior forming-die block,77 as such is comprehended by the claim 'in the Letters Patent granted to me February 26, 1865, and'reissued to my assignee March 1, 1870; but

What I claim as my'invention, and desire to secure by Letters Patent, is-` 'lhe improvement in the devices fof attachingomaments to chain-links, which 'consists of', the movable mortised link-holders E E', compressing-dies d d, bedde a, and plunger F, all in combination and operating to swage and attach the ornament to the chain-link,

substantially as described.

' vVIRGIL DRAPER.

Witnesses:

EDWARD C. AMES, PETER F. HUGHES.

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