US1000710A - Chain link or coupling. - Google Patents

Description

C. BRYANT.

CHAIN LINK 0R COUPLING.

APPLICATION FILED FEB. 20, 1906.

Lflflflfi 1 Q1 Pa nted Aug. 15, 1911.

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. i,t -kno wn that I. CiI.\iiLi;s BRYANT, a StIlJjQCt ofthefKing of Great Britain, residat 1 Drakefield read, Balhain, London, l1a'\'e invented newaud useful Improveinents in Chain Links or Couplings, of which the following a specification;

The object of iny. invention is to provide a chain linkwhich is formed of a single piece of wire, or red, bent into the form of a double loop, and having each of the end portions constructed to detachably engagethe loop at the opposite end of the link, so that it can be readily detached, to open the link at either end for connection with other links or devices.

In the accompanying drawing, Figure 1 represents a plan view of a link embodying my invention. Fig. 2 is an'edge view of the same. Fig. 3 is a view sin'iilar'to Fig. 2, of a link in which both theend locking portions are bent in the same direction. Fig. 4 is an edge view'partly broken away showing another slight modification of the link.

In the form of link shown in Figs. '1. and 2 the link is formed of a single piece of metal wire or rod, bent into'double loop form by bending the end portions in opposite directions, the loops being designated l5 and B" respectively. For convenience of description I will term the portion ot each loop adjacent to the end of the said wire or rod the outer arm? of the loop and the portion adjacent to the centerof the wire or rod the inner arm of the loop. in bending the wire or rod the inner arms of the loops form continuations of each other and merge directly into each other. liach end of the rod or bar'is provided with a portion which I term the lOt'h end which is constructed to detachably engage the inner arm of the loop of the opposite end of the. link. without surrounding the. same. 'lhese lock ends are designated at C and respectively and they may be. formed as shown in Figs. 1 and 2 by simply bending the end portion of the rod or bar into an open hook form which will give it a secure hold upon its inner arm of the opposite loop, but. at the same time permit it to be readily disengaged, by sliring'ing the outer loop arm of which it forms an integral part, and without bendin; the lock-end itsell, as will be clearly apparent from the drawing. 'lhe rod or lltll' 'lCHAR-ILES BRYANT, or Lennon,- ENeLAIiD. I

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Specification of Letters Patent. Patented 15, 1911 Application med February 20, 1908. serial No. 302,073.

is not necessar j' v It is" obvious that either or both of-the lock ends of the link can be'readilv removed from thef'p'ortions which they engage, thus opening the'linlcat either or both ends. to facilitate the insertion of another link or -to enable the link -..to be connected" with any other device, and thereafter the lock ends can be replaced in engagement, and this operation can be performedrepeatedly without alfecting the shape or integrity of the link. l I

In Figs. 1 and 2 each of the lock ends C, C engages the inner arm of the loop at the opposite end of the link, and lies within a recess E (or E formed between the inner ofmetal ofa springy nature, although this and outer arms of the loop as there shown.

T term this recess the bight of the loop, and each of the lock ends in this form of the link engages the bight of the loop at; the opposite end of the link. In Figs. 1 and 2 the lock ends are bent in opposite directions with respect to the plane of the link. Fig. 3 shows a link substantially like that shown in Figs. 1 and 2 with the excepl'ion that the lock ends are bent in the same direction. .It will be seen that in both these forms oflink, while the lock ends are detachable and do not surround the inner arms of the loops which they engage the longitudinal strain upon the link will merely cause the lock ends to press tighter upon the engaged parts and tighter into the bights of the loops, thus giving the link the required strength. In Fig. 4 I have shown a form of link in which one of the lock ends C is pro- .vided with a grooved portion G to enable it to tit upon, without surrounding its contiguous loop arm, and the lock end C is shown asprorided with a head or enlargement ll for the same purpose, this being merely illustrative of variations in the form of lock ends within the scope, of my inventiori. I

have been t'ormcd from pieces of rod or wire by bending them into double loop form and permanently securing the end portions by bending them around portions oi said loops.

am aware that links of various kinds propr'ised, prior to my present invention, to

from which the link is formcdmay be made formga link-by bending a single piece of rod or bar into double loop form and providing the end portions with means for detachably engaging portions of the loops or for detnchubly engaging the inner arm of the loop at-the opposite end of the link, or for detnchnbly engaging the loop at the opposite end of the loop, and lying in the bight of said loop, and these construct-ions I claim my invention. Having described my invention, what I claim and desire to secure by Letters Patent- A link comprising a continuous wire 0r rod having its end Jortions bent in opposite directions and over zipping the central pori vided with locking portions, each of thesaid locking portions det-nchably engaging the 5 central portion, and lying respectively with- 5 in the angular bight formed by the opposite l end portion overlappingthe central por- 5 tion, the said locking portions extending less than three-fourths way around the central 1 portion of the wire or rod forming the link, whereby the greater the longitudinal strain on the link, the more firmly the'locking por-i I tions are gripped and wedged in the angular bights of their respective loops.

CHARLES BRYANT.

\Vit-nesses JOHN E. BOUSFIELD, l C. G. REDFERN.

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