US 2471950 A
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Description (OCR text may contain errors)
May 31, 1949. G.*A. GOTT! ET AL LINK CHAIN Filed Aug. 14, 194'? www Patented May 3 1, 1949 George A Gotti',.New` `York, Andrew KillimiElnif,
hu'rst, and Nicholas vlpiclli, Astoria/,'- N Y.Y
Application Algust=14, 1947;Serial-JN??68,6905:s
I 1 Claim. 1
This invention Irelatesatofa link construction for chains; ,fhracelets;fbeltsaand wrist bands.
The `Yprincipal:objectofythis invention is the provision of a jewelry chain of the character described whose'-linkstmayylbestarnped out of sheet metal andwhoseinterengaging parts may be'locked 'into position relative'to each' other. Jewelry chains of this general 'character have heretofore be'enfinventedzfand patented, but it is believed that the interlocking constructionI whichf'islherein provided, aiodsvery substantialfadvantages over thel constructions heretofore knownl The' stamping operation by which'the several parts are made is similar to the stamping operation by which the corresponding parts of known constructions may be made, but it is in the position of the respective parts that the present construction may be distinguished from the prior constructions, and it is this changed position of the parts that renders it possible to interlock them in the manner herein claimed. It is this novel positioning of the several parts, together with the novel method of interlocking Said parts, that constitutes the basic principle of this invention.
A preferred embodiment of the invention is shown in the accompanying drawing in which- Fig. l shows a blank of one of the links of the construction herein claimed;
Fig. 2 is a plan view of a plurality of links formed of the blank shown in Fig. 1, showing how these links interengage each other; and
Fig. 3 is a side view of the link construction shown in Fig. 2; Fig. 3 also showing one of the links before it is brought into position to engage its adjoining link.
Fig. 1 discloses a complete link before it is bent into appropriate shape. It is simply a flat piece of sheet metal die cut into the design shown in said Fig. l. This design is critical in at least one respect: Its body portion I0 is provided with relatively long extensions Il and relatively short extensions I2, and each long extension is in line with a short extension, said line being parallel to the long dimension of the bracelet as a whole. The cut-outs I5 provide a decorative note and their specific outline is not critical. They should, however, be sufliciently large and properly positioned to accommodate the extensions II and I2 when the blank is bent upon itself in the manner shown in Figs. 2 and 3.
It will be noted that each blank is bent upon itself to form a substantially U-shaped member with inturned extensions Il and I2. It will be seen that a bar or band I1 is formed between bars; wtogetheri,y .witl'r those .tportionst'of `the -body III which oin the-bars'llconstitute.' the backbone o1"- the link `after@threw-blank is1bent over-v .upon itself asshownfintFi 3.;
It will further e- 4noted: that j whenthe ,blankV is ben-tlf upon -itselt,l as; descrbed,:reachy pair-of s opposing openings I5is broughttintoeregistration; with itself, so that in plan viewyeachwlink appearsr I to have only half as many openingsfllcasmthe blankyis shownv ,tov have-1finf.f1 "ig-.1 1. .f Thezfljextensions H and I2 are bent inwardly toward each other at, the bending operation taking place, over an angle exceeding It is evident from the last-mentioned bending operation that the extensions II and I2 are bent into the form of hooks by which the bars I1 may be engaged through openings I5. This is clearly shown in Figs. 2 and 3. It will now be understood why it is that extensions II are somewhat longer than extensions I2. The shorter extensions I2 abut the longer extensions II to prevent the longer extensions from opening up. If these extensions were of equal length, neither would be able to lock the other into closed position. But, since one is longer than the other, it is evident that this locking engagement can take place. It will now be understood why it is necessary to keep each long extension II in line with a short extension I2. If they were not in alignment with each other, it would not be possible to bring them into locking engagement with each other as described.
To nish off the sides of the link construction under discussion, the side edges 20 of the blank are bent toward each other until they extend at an angle of 90 with respect to the body of the link. It will be seen in Figs. 2 and 3 that side edges 20 are brought into a common plane and that there is no overlapping of one with respect to the other.
It will be understood that the foregoing is a description of a preferred form of this invention and that modifications may be incorporated therein within the spirit and scope of the invention. For example, Fig. 1 shows a blank having iive short extensions I2 and ve long extensions I l. 1t will be appreciated that the blank may be made with a greater or lesser number of such extensions. In every case, however, a long extension may be complemented by a short extension, and each pair of such extensions must lie on a line which is parallel to the longitudinal axis of the chain as a whole. In Fig. 2 three links are shown to be joined, but again it will be evident that a greater number of links may be joined together to form a much longer chain. The number of links to be used will of course be determined by the length of chain desired and the size of each link. It will be understood that links of different dimensions may be joined in a single chain, the sole requirement being that the extensions II and I2 of any one link be positioned to engage the bars I'I of its adjoining link through holes I5. By the same token a chain may be formed of links having diierently shaped openings I5. The joining of links having diiferently shaped openings I5 will be determined by the aesthetic eiect desired to be produced in the chain. It should also be noted that the chain herein described is a exible one, and that it may be used to form bracelets and similar articles of jewelry. In such case the extensions II and I2 of one of the end links are caused to engage the bars I'I of the opposite end linkl thereby forming an endless chain.
This invention has been described as a jewelry chain for use primarily in connection with bracelets, wrist bands and similar articles. It Will be clearly understood, however, that the link construction herein described may be used for other purposes as well; industrial as well as ornamental. Naturally the dimensions and type of material used will differ in each case.
A link chain comprising a plurality of links,
4 cach of which is provided with upper and lower extension pieces along the forward edge of the link, the upper extension pieces being in line with the corresponding lower extension pieces, the back edge of each link being provided with a plurality of bars corresponding in position to the position of the extension pieces of the adjoining link, alternate upper extension pieces being relatively long and the corresponding lower extension pieces being relatively short, the remainder of the upper extension pieces being relatively short and their corresponding lower extension pieces being relatively long, each said upper and lower extension pieces of one link being bent to form an acute angle around the corresponding bars of the adjoining link in locking engagement therewith, the outer corners of the free ends of said shorter extension pieces also engaging the end surface of its longer extension pieces to lock REFERENCES CITED The following referenlces are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,702,335 Blaich Feb. 19, 1929 1,795,038 Prestinari Mar. 3, 1931