US1788552A - Chain - Google Patents

Description

Jan. -13, 1931. .E. F. SPEIDEL 8 CHAIN Filed March 6, 1950 lllllllllllllllllllllllllllllllllllll ll 3! l IIIUQ. Ii

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M A TTORNEYS.

Patented Jan. 13, 1931 unite!) s'ra'rr;sv

Application filed March-6, 1930. se m No. 433,733.

This invention-relates to a chain ofth'e type used for bracelets, watch straps and the like; and has forits object to provide a.

construction, each of the links of which is identical, with parts of'one link directly connecting with parts of the next link. v

A further object of the invention is to provide a construction which may be of plated stock with its inner and outer exposed por- 1o tions covered with the plate of the'stock to enhance and cause it to maintain its ap pearance.

A further object of the invention is to provide the bracelet of open work construction, which may be formed by bending and swaging as distinguished from cutting pieces from sheet stock. a I With these and other objects and advantageous features in view, the invention consists of a novelarra'ngement of parts more fully disclosed in the detailed description following, in conjunction with the accoinpanying drawings, and more particularly set forth in the appended claims.

In the drawings: 7 F'g. 1 is a top planview of a portion of the chain; r

Fig. 2 is a bottom view thereof; Fig. 3 is a plan View of two links before being bent into finished position;

F ig. 4 is a side elevation'of thechain; Fig. 5 is a central section on the line 5-5 of Figure 1; V

Fig. 6 is a perspective view of one of the links bent into U-form;

Fig. 7 is a perspective View illustrating a further operation of flattening the cross piece between the arms; 1

Fig. Sis a perspective view showing the body or cross piece between the arms as notched;

Fig. 9 is a perspective view showing the studs or trunnions as formed thereon asbeing rounded and the holes pierced in the .arms;

Figs. 10 and 11 are sections on the lines 10-10 and 11-11 respectively of Figure 8-, showing the stock as of a plated construction. 7

It is found desirable to form a bracelet illustrates apiece of wire foldedinto U-shape PA EN OFFICE 1 chain, of such construction as'to leave openings therethroughto permit the'flesh to be exposed through the bracelet when worn upon the arm; and in order to provide such a'construction which will be thin and comfortable upon the wristand one which may have aplatedsurf-aceon its exposedparts, I have bent a piece ofplated wire into U-shapepdisplaced the stock by flattening the crosspiece between the U arms and have then suitably notched this flattened portion to provide studs to extend into holes in the arms to hingedly connect a the adjacent ,gli'nks together; and the following is a detailed dc scription of thepresent embodiment of this 5 invention 1 illustrating the preferred means by which these advantageous results may be accomplished; 1 v v lVith reference to the drawings, Figure .6

with arms 11. and a cross, piecejorbar. 12; The bar 12 isflattened bysWagingQas illustratedatu13,{and-at the same time the-arms 14: are tapered, as shown in Figure 7.

, Notches 15 are cut in the body to leave-studs 16 which are suitablyrounded as at'17, to be received inopenings 18 adjacent the ends of the tapered arms 14,1a-sillustrated in Figure 9, whereby a chain is formedas illustrated in'rFigures 1 and 2. I In joining the linkstogether, the arms'jlt are at first diverging, as illustrated in Figure 3,.which allows themlto be snapped-by the spring. ofv the stock over the round ins 17, :after which they are bent inwardlyby 5 suitable operations-so asto be in line as'illustrated in Figures 1 and 2. The flattening of the'cross' piece 12 to form the body 13 displaces the stock from the top of the link and leaves the bottom 19 smooth, as illustrated in Figure 2, in order not to-form any sharp edges or uneven surfacewhich might be. uncomfortable to the arm when worn.

From the above construction and from Figures 10 and 11, it will be observed that I have preservedtheouter plated surface 20 of the wire from which the link was formed by'fthe ends-1820f the wire extending lthere into. Each of the ends'is,'however, suitably curved longitudinally to conform to the curved as at 21 to allow for greater fiexishape of the arm.

bility of the structure.

Various appearances of the chain so con structed may be obtained by variously shaping the cross bar 12 or the arms 11 to provide a variety of appearances.

While I have described certain construction forms which embody the principles of my 1nvent1on, it is obvious that other des red changes in arrangement may be made wlthin the spiritand the scope of the invention asdelined in the appended claims.

lclaimz. 1. A chain comprising a series or" links, each link generally U shape'and of a single piece or" wire, the crosspiece between the arms of the 13 being flattened to be generally in the plane ofthe chain and having notches cut laterally inwardly from its edge to leave studs, the opposite arms of the U havingrecesse's to receive said studs and hingedly connect the'links together. I e

2. A chain comprising a series of links, each link generally U-shape and of a single piece of wire, the cross piece between the arms of the U being flattened to be generally in the'plane of the chain and having notches cut laterally inwardly from its'edge and ad 7 jacent theend of the U to leave studs between .the notch and the end thereof, the opposite arms of the U having recesses adjacent their ends to receive said studs and hingedly connectthe links together.

, 8. A-chain comprising a series of links,

each link generally U-shape and of a single.

piece ofwire, the cross piecebetween the arms-of the U being flattened to be generally in the plane ofthe chain and having notches cut laterally inwardly fromits edge to leave studs, the oppositearms of the U having recesses to receive said studs and hingedly connect the links together, said arms having their width lying in a plane at right angles to the plane of the flattened portion;

.4. A chain comprising a series of links, each link enerally U-shape and of a single piece of wire, the cross piece between the arms of the U being flattened to begenerally in the plane of the chain and having notches cut laterally inwardly from its edge to leave studs, the opposite arms of the U having holes to receive said studs and hingedly connect the links together, said arms being tapered from their ends toward the cross piece.

5. A chain comprising a series of links, each link generally U-shape and of'a single piece of wire, the cross piece between the arms of the U being flattened to be generally in tlie plane of the chain and having notches cut laterally inwardly from its edge to leave studs, the opposite arms of the U having holes to receive said studs and hingedly connect. the links together, said arms being tapered from their ends toward thecross piece and EDWIN r. M.;sPE1DEL.

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