US1991287A - Bracelet lock - Google Patents

Description

v. MARTIN BRACELET LOCK Feb. 12, 1935.

Filed Oct. 10, 1934 w l n M E m W E VA |NVENTOR ATTORNEY Patented Feb. 12, 1935, v

' ,Unirse srnres PATENT orifice BRACELET LOCK Valentine Martin, New York, N. Y., assignor of lanci-[half to Dimitry Matushenko, New York,

Applieation october 1o, 1934, serial No.`74'1,159 4 Claims. (Cl. 24e-73) My invention relates to bracelet locks and has plate 15 is hingedly connected with the rear end particular reference to devices for locking togethof the box by a pin 16, and the front end has a er two halves of a bracelet on a wearers arm, sharp hook 17 adapted to engage a notch 18 cut also for locking together chains, beads and vsirnin the front end of the box 1.v A lug 19 is provided ilar jewelry. on the upper side of the cover 15 and serves to 5 My invention has for an object to provide a open the cover by the users nger or some sharp lock with a double locking arrangement, one ininstrument. The locking cover 15 has a certain side the other, so that if the outer locking memresiliency so that the hook 1'7 can be snapped into ber becomes accidentally unlocked, the inner the notch 18 or out of it. The inner locking plate locking member will still hold the two parts of the 3 cannot be unlocked until the outer plate 15 is 10 bracelet together. In order to render my double swung open. With the plate open, however, safety feature still more reliable, I arrange the the inner locking plate 3 remains in a closed or two locking members so that they require diflocking position thereby preventing the pinfrom ferent operations for unlocking them. In the sliding out of the slots 7. The front end of the 15 preferred embodiment of my invention I provide plate 3 is lined up with the front edges of the 15 a sliding inner locking member, and a swinging side walls of the box when the plate is in the or rotating outer locking member, so that both closed position. The rear end then is tted into locks cannot be loosened or unlocked by a single the rear extensions of the slots or grooves 2. With movement. this position of the'plate it cannot be accidentally 20 My invention is more fully described in the acmoved into the open position. 2o i companying specification and drawing in which- Important advantages of my lock or clasp are Fig. 1 is a sectional elevation of my lock in an that it forms a compact and attractive means open position, Fig. 2 is the same in a closed posifor joining together ends of jewelry chains, tion, Fig. 3 is a plan view of my lock partly in bracelets, and other similar articles. Its double section taken on the line 3-3 of Fig. 2, and Fig. locking feature renders the lock safe against the 25 4 is a sectional view taken on the line 4-4 of accidental opening, as the inner lock will retain Fig. 2. the parts of the chain or bracelet together even My look consists of a box or housing 1 open on when the outer lock becomes accidentally opened.

top and provided with longitudinal slots 2 on the The yieidingiy-resilient bent over edge of the so inside Ofthe Side Walls near the of the box. housing the corrugations in the An inner locking plate 3 is slidably tted in these. plate, permits the use of one hand in closing and slots and has a depresslon 4 on top 91' movmg opening the lock, as the sliding plate 3 remains mg:nafsbgaegfigdsglggfgg Ofcg open when pulled out, being held by the resilient plate 3 near its front end, these corrugations bememer tg permltmgdto.artfthedpext Opa" ing frictionally engaged by a sharp edge 6 on the non y ,e same an el er or lscfmnec ng front end of the box 1. or engaging the. free end of the chain. Upon Transverse slots 7 are provided in the side walls Completlon of uns operatlon the Same hand can of the box 1 lfor a rod 8 fasten/ed in the end links be used for snapping the plate 3 back into its 9 of the bracelet chain. The other end of the Closed Bosnio and snapping the Cover 15-0Ve1` 40 bracelet chain is connected by links 10 with a pinthe Closed Platellrotatively tted in the fr nt end of the box The preferred embodiment 0f my inventin, aS 1. The plate 3 has a lug 12 to which the ends of described in this specification and shown on the helical springs 13 are attached. The other ends drawing, can be modified, of course, without `deof these springs are attached to a bar 14 resting parting from the spirit of my invention. 45

against the-front end of the box. 'The compres- I claim as my invention: sion of the springs is so adjusted that thevkeep 1. In a bracelet 1ock, the combination of a box the plate 3 from being accidentally Shaken 01 pivotally connected with one end of a bracelet pushed into the open position shown in Fig- 1. chain, said box being provided with an open slot but they cannot overcome the friction between for the other end of said chain, an inner locking 50 the COHUgaODS 5 and the edge 0I lip 6 When the member for said other end of the chain in said Plate 3 iS mOVed into the Open pOSitOIL An Outer slot, corrugations on one side of said member, 'a locking member 15 is shaped so as to form a cover stationary lug in said box frictionally engaging forthe leek, being bent t0 COIlfOrm With the CillV- said corrugations being thereby adapted to retain aure of the box 1. The rear end of the Guterv said member in its open or closed positions, and

an outer locking member adapted to cover said inner member.

2. In a bracelet lock, the combination of a box pivotally connected with one end of a bracelet chain, said box being provided with an open slot for the other end of said chain, an inner sliding' member in said box adapted to lock'the end of said chain in said slot, corrugations on one side of lsaid member, a resilient lug supported by one end in said box and adapted to engage said corrugations with its free end thereby retaining said member in its closed or open positions, and an outer locking member adapted to cover said inner member.

3. In a bracelet lock, the combination of a box pivotally connected with one end of a bracelet chain, said box being provided with an open slot for the other end of said chain, a sliding member in said box adapted to close said slot over the end of said chain, a lug attached to the wall of said box and adapted to frictionally engage said member thereby impeding the movements of said member and tending to retain said member in its open and closed positions, and an outer locking member adapted to cover said inner member. 4. In a bracelet lock, the combination of -a box pivotally connected with one end of a. bracelet chain, said box being provided with an open slot for the other end of said chain, a sliding member in said box adapted to close said slot over the end of said chain, a member attached to the wall of said box frictionally engaging said member thereby impeding its movements and tending to retain said member in its open and closed positions, said member being adapted to be manually moved, a spring adapted to facilitate closing movement of said member, and an outer locking member adapted to cover said inner member, the opening movements of said inner and outer closing member being in substantially opposite directions.

VALENTINE MARTIN.

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