US1795039A - Chain - Google Patents

Description

March 3, 1931. E. PRESTINARI CHAIN Filed April l5. 1930 A TTRNEYS.

Patented Mar. 3, 193.1

UNITED s'rArEs PATENT OFFICE EUGEN PRESTINARI, OF IRVINGTON, NEW JERSEY, ASSIGNOB T GEMEX COMPANY, OF

NEWARK, NEW JERSEY, A CORPORATION OIF NEW JERSEY CHAIN Application iiled April 15,

alternating links which are compactly related with reference to relationship.

A further object of the invention is to provide a chain of sheet stock in Which the arms their longitudinal embrace a longitudinally-extending body portion and yet lie with their outer surfaces in 'substantially the same plane'to present an even, smooth appearance to the top of the bracelet. j

With these and vother objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a top plan view of the chain em bodying this invention.

Fig. 2 is a bottom view of a portion of the chain.

Fig. 3 is a sectional view with the bottom portion of the chain removed.

Fig. 4 is a view similar to Fig. 3, showing a single link.

Fig. 5`is a perspective view of the blank lfrom which the link is formed.

Fig. 6 is a perspective view of a'complemental link which is alternated therewith in the series.

Fig. 7 is a perspective view showing the link of Fig. 5 partially bent into nished position.

Fig. 8 is a perspective view of a link bent into finished position. v

Fig. 9 is a longitudinal section thru the chain.

In constructing a chain of the type presenting alternating links, it is found desirable to cause the links to be compactly related with reference to the length of the chain with the links which are staggered with relation to each other overlapping and being overlapped substantially egual amounts with reference to the links at either end thereof; andit is also 'found of advantagev to provide a construction in which the top surface of the 1930. Serial No. 444,454.

chain will lie in substantially a single plane and present an even, smooth appearance; and 1n order to accomplish this result, I have so formed each of the links of the series as to cause a portion of the body of the link to extend in a longitudinal direction with reference to the chain with portions for receiving the arms being depressed a thickness sub- .stantially equal to the thickness of the arms, 1n order that the arms extending about this body portion may lie iush with the arms of the link to which they are connected and prev sent an even, smooth outer surface and the following is a detailed description of the present embodiment of the invention showing the preferred means by which these advantageous results may be accompli ed With reference to the drawings, 10 esignates one link and 11 the other link of the series which are alternated with one another throughout the length of the chain, the arms extending from the body being staggered as shown and interlocked one I with another. Each of these links is provided with arms 12 extending from the body 13, which body is bent into substantially L-shape intermediate its edges, vas illustrated in Fig. 7, with the longer leg 14 of the L extending longitudinally of the chain and the shorter leg 15 extending laterally or in a direction of the thickness of the chain.

The arms 12 project beyond the longitudinally-extending portion 14 of the body which are depressed, thus severing this portion from the arms, the same being looped or folded about the longitudinally-extending portion 14 of the body of the next link and setting in the depressed portion, as apparent from Fig. 8, with their end portion l'extending back toward the/.body and lying substantially parallel with the portion 1'? forming the upper surface of the chain.

Arms 18 also extend from the opposite edge of the body and project as at 19 (see Fig. 9) to meet the portion 16 causing the ends to abut and complete the bottom of the link to prevent accidental detachment. The links thus connected are hingedly related causing the chain to be exceedingly iiexible.

The top surface 20 of each of the arms v.an

is unbroken, while the bottom surface is broken by the joint 21 of the abutting ends of the arms extending laterall of the chain. As each ofthe links extends a out the lon tudinally extending portion 14 of'the boylf,

. they are held in close compact relationship with reference to the longitudinal extent of the chain and as the dimension of this portion of the body is substantially one-half of the top surface 20 of the arm and body, each 'of the links will overlap the next link sub-l stantially the same distance thus forming a mmetrical construction which is highly deslrable in an ornamental chain of this character.

The foregoing description is directed solely tion, arms projecting beyond the edge of the longitudinally-extending portion of the body and embracing the body of the next link to hingedly connect the links together.

2. In a chain, a series of sheet metal links,

`each comprising a body extending transversely of the chain and L-shape in cross section with the longer leg of the L extending longitudinally of the chain, arms projecting beyond the edgeof the longitudinally extending leg ofthe body and embracing the body of the next link to hingedly connect thelinks together.

3. In a chain, a series of sheet metal links, each comprising a body extending transversely of the chain with a sheet metal portion extending longitudinally thereof, arms projecting beyond the edge of the longitudinally-extending portion of the body and embracing the bod of the next link to hingedly connect the lin s together, the portions of the longitudinally extending portion of the body between the points of projection of the arms being depressed inwardly of the link substantially the thickness of the stock of the arms to receive the arms therein and permit them to lie flush with the outer surface of the chain.

4. In a chain, a series of sheet metal links, each comprising a body extending transwoaose 6. In a chain, a series of sheet metal links,

each comprising a body extending transversely of the chain and L-shape in cross sect1on, arms projecting beyond the edge of the longitudinally-extending portion of the body and looped about the body of the next link and extending substantially parallel with the sald longitudinally extending portion of the body, and arms projecting from the opposite ed e of the body to meet the looped arms.

In a chain, a series of sheet metal links, each com rising a bod extending transversely o the chain and -shape in cross section with the longer leg of the L extending longitudinally of the chain, arms projecting beyond the edge of the longitudinally-extendmg leg of the body and embracin thebody of the next link and extending su stantiall parallel with the said longitudinally exten ing portion of the body to hingedly connect the links together.

8. In a chain, a series of sheet met-al links, each comprising a body extending transversely of the chain and L-shape in cross section with the longer leg of the L extending longitudinally of the chain, arms (projecting beyond the edge of the longitu nally-extending leg of the body and looped about the body of the next link and-extending substantially parallel with the said longitudinally extendin portion of the body to hingedly connect t elinks together, and arms rojecting from the opposite edge of the ody to meet the looped arms.

In testimony whereof I aiix my signature.

EUGE-N PRESTINARI.

versely of the chain and L-shape in cross section with the longer leg of the L. extending longitudinally of the chain, arms projecting beyond the edge of the longitudinally extending leg of the body and embracing the body of the next link to hingedly connect the links together, the portions of the longitudinally extending leg of the body between the points of projection of the arms being depressed

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