US 1121770 A
Description (OCR text may contain errors)
E. s. SMITH. DBTACHABLE LINK. APPLIOATION TILED MAR. 30, 1914.
ygly' Patented Dec.22,1914
lcitizen ot the United States,
EZB/A S. SMITH, OF .ATTLEBORQ IYIASSACHUSETTS, ASSIGNOR COMPANY, A CORPORATION OF RHODE ISLAND.
Specification of Letters Patent.
ln lentcd Dec. 22, l-t.
Application filed March 30, 1914. Serial No. 325.161..
To aZZ 'ir/ont it' may concern.'
Be it known that I, Ezine S. Snr'rn, a. residing at Attleboro, in the county ot Bristol and State of 'illassaehusctts have invented eertain new and useful Improvements in De tachable Links, of which the ti'illowing is a specification.
My invent-ion relates t-o detachable links for expansible bracelets, and has for its essential objects the provision in this class of cha-in bracelets of means lfor rendering an apparently endless chain or Circlet separable or disconnected at soine point in the circlet; to render the attachingT and detaching ine-ans inconspicuous, and to insure a Inaxiininn oi strength ot structure, and facility and etlectiveness of operation. lt has been sought to ei'iect these ends by eutting away a portion of the exposed l'ront tace ot a link, `which has resulted in an unsightliy appearance and in arring of the structure: and this attempt has always been accompanied by the requirement ot' the insertion or' soine small auxiliary link, which besides involving an .increase ol expense, broke the regular contour ot the bracelet body, and detracted from the expansion ot the bracelet.
Further objects of this invention are to specinii'ally overcome the enumerated disadvantages.
In the accompanying drawings `which i'orin a part of this specification, Figures l and L are plan and front elevations respec* tively ot a bracelet embodying in v invention. Figs. 3 and el, enlarged front elevations ot' the connecting portion ot' the saine in closed and open positions respectively, Fig. 5, an enlarged section ot the connecting portion on line u). u?, otl Fig. Q, Fig'. (i, a Section on line ir.- a'. of Fig: 5, Figs. i" and 8, enlarg'ed sections ot' the connecting portion in open position taken on lines u', w, of Fig. 2, and a', a'. ot' Fig. 5 respectively, and Figs. 9 and l() transverse sections taken on lines y, 7/, and e. .2, ot' Fig. 8.
Like reference characters indicate like parts throughout the views.
The bracelet comprises in series aplurality ot' intern'iediate links slidably embraced hy lateral links B. The links A are longitudinally curved and have integral With or fixed to one end laterallyr extending guides cz. The links B are alternately disposed vvith relation to the. central links QL which they cnibrace` and constitute lraines. ln` detail cach traine l5 comprises parallel shells b comprising marginal internal llanges said shells being?r connected near their ends 'o v posts (l attached b v solder or otherwise. llclical spriings l) are lhfalcd between the post ol" one link` auddhe. inner end of the central link.
All the links oi" the bracelet are ot the construction already described `ivith the exception ot' one central link und one lateral link, which exceptional links or units will now be described. central link Y is provided which is similar to the links A except that the former is .sonicvvhat longer. lfixed bv solder to or integral with the link A aloni,r the major portion oi' its open sides are lateral plates ot substantially the suine .torni and dinieusious as the plates o, and proyided with the inturncd flanges l. The
.plates or' complete a link portion B" which has thc appearance ot' the linksl il. although their fixed relation with thc intermediate member A constitutes in. reality u single link closed upon all sides except thatia resultant oikieuingiV occurs through each end ol' the link as at d. due to the shorter length of the plates relatively to the length ol the incinber il. '.l`hroue'h these open portions Z through each end ot' the described link L)ass the posts C of the adjacent links.
The described closed link B is transversely severed so as to divide the link B into a section lil and a section F. The foi-nier compri. oppositely disposed central lugs c, and the section l" is provided with oppositcljY disposed central rectangular cavities f in which the lugs or projections e 95 arc adapted to closely lit. Connecting the lugs c is a crosspiece loop or post y through which passes a hook 71., whose shank H is lixed by solder or otherwise to the inner face of one of the plates be of the section 10C F. The opposite plate b2 of the section E is provided' with an opening I through which loosely passes the thumb piece z fixed to the tace of the spring y' which has one end attached by solder or otherwise as at la 105 to the inner tace of the shell b2 0I the seetion F.
It Will he observed that in closed position the parts of the link B', as shown in Figs.
3, 5, and 6, are in close Contact with each 110 S, with the hook engaging merely the loop g. The tongue h of the hook may then be readily withdrawn from the crosspiece g, and the parts be thus entirely separated. This form ofv bracelet is therefore capable of being appliedvto wrists of various sizes without being strained by passing over a large hand. It will be observed that the thumb piece is the only exposed irregularity upon the face of the bracelet, and that rthis member is located upon a side of the bracelet, and not upon the face of the same. The absence of any auxiliary link between the "closed link B and the adjacent links B renders the contour of the bracelet symmetrical, proportionately increases the resiliency of the elements, and decreases the cost of manufacture.
What I claim is,-
l. A detachable link of the type set forth, comprising two transversely separable sections comprising central walls and side walls, one of said side walls being provided v'lth a perforation, a spring upon the perfoi-ated wall and provided with an abutment, a thumb piece upon the spring extending through the perforation, and a resilient hook fixed in the non-perforated section adapted to engage said abutment.
2. A detachable link of the type set forth, comprising two transversely separable closed housing sections, one section being provided with a perforation, a transversely disposed cross-piece in the open end of the perforated section, a i'lat spring fixed at one end in. the perforated section, a shoulder on the iixed portion of the spring, a thumb piece on the spring extending through the perforation, and a hook fixed in the second section adapted to extend into the perforated section around the loop in contact with the spring and to abut against the shoulder.
3. A detachable link of the type set forth, comprising two transversely separable closed housing sections, one of said sections being provided with a perforation, lugs upon the perforated section, a cross-piece connecting the lugs, a spring in said section having a return portion forming a shoulder, a thumb piece on the spring extending into the perforation, the second section being provided with slots to receive the lugs, land a hook in the second section adapted to extend into the first section around the crosspiece and to rest upon said spring with its free end extended toward and in contact with the end of the return portion of said spring.
4. A detachable link of the type set forth, comprising two transversely separable closed housing sections, one of said sections being provided with a perforation, lugs upon the perforated section, a spring in said section, a thumb piece on the spring extending into the perforation, the second section being provided with slots to receive the lugs, and a hook in the second section in contact with the spring when the link is closed, the free ends of said hook and spring being extended in opposite directions.
A detachable link of the type set forth, comprising two transversely separable closed housing sections, lugs upon one section, a spring fixed in said section, the second section being provided with slots to receive the lugs, and a Yhook in the second section engaging the spring, the free ends of said hook and spring being extended in op posite directions and the free end of the hook overlapping the free end of the spring and engaging a shoulder on the latter when the link is in closed position.
In testimony whereof I have affixed my signature in presence of two witnesses.
EZB-A S. SMITH.
Witnesses Einw. II. Zulema, Horario E. BnLLows.