US1636914A - Snap fastener - Google Patents

Description

July 26,1927. I 1,636,914

G. KOLLSTEDE S NAP FASTENER Filed Feb. 25. 1927 Patented July 26, 1927.

UNITED STATES GEORGE KOLLSTEDE, Q'E' PROVIDENCE, BHQDE ISLAND.

SNAP FASTENEB.

Application filed February 25, 1927. Serial No. 170,761.

My invention relates to end fasteners of the snap type intended for use upon bracelets, armlets, necklaces and the like.

The essential objects of my invention are security, facility for engagement to the end that the operator may engage or disengage the parts with a single hand and to a degree automatically. and to attain these ends in a device of maximum strength and inexpensiveness.

To the above ends essentially my invention consists in such parts and in such conibinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification- Figure 1 is a plan view of my novel fastener shown embodied in an ornamental bracelet,

Figure 2 is a side elevation of the fastener partially in fragmentary section,

Figure 3, a section on line 3-3 of Figure 1 showing the ring member in a different position from that in Figure 2, and

Figure 4, a section of the fastener taken on line 4-4 of Figure 1.

Like reference characters indicate like parts throughout the views.

In the drawings 6 represents a flexible bracelet having upon one end an attaching ring 7 and upon its other end a ring 8 constituting in this instance a member cooperating with the catch member 10 of the fastener.

In detail the catch 10 comprises a sub st-antially lozenge or diamond shaped plate 11 having at one retracted end an eye 12 to receive the ring 7 The opposite retracted end of the plate has a downwardly directed hook or beak 13. Adjacent the latter the body or plate 11 has a transverse slot 15. At the points of maximum breadth the plate has downwardly directed cars 16 with per forations 17 to receive a pintle or pivot member 18 which passes through like perforations 19in lateral lugs 20 extending upwardly from a plate 22. In detail the plate 22 comprises a semicylindrical end portion 23 carrying the lugs 20 and partially surrounding the member 18. The body 24 of the plate 22, which is triangular in form, is

disposed at an angle to the semisleeve portion 23 so that the latter forms in conjunction therewith a resultant shoulder 25. The plate 22 terminates at its forward end in an integral arm 26. acute angularly disposed with relation to the plate, to form a shoulder 27 adapted to normally abut against the end of the beak 13. This arm passes loosely through the slot 15 and terminates in a flat integral finger or thumb piece 29 bent at such an angle to the arm as to normally rest against the front of the plate 11.

A helical spring 31 surrounding the member 18 has one end arm 32 engaging the plate 11, and its other end arm 33 engaging the plate 24. By this means the shoulder 27 is normally pressed against the beak 13 to prevent'the escape of the ring member 8.

In order to insert the last mentioned member within the beak, the operator pre sents the former edgewise towards the plate 24and is stopped by the shoulder 25, by which means the operator is appraised of the relative location of the parts Thereupon the ring is simultaneously pressed against and slid along the portion 24 of the yielding locking member, and enters the beak 13 as shown in Figure 3. After the ring has wholly entered the beak tothe position shown in Figure 2 the spring snaps. the locking member back into original position.

I claim 1. In a snap fastener, a top plate provided with a. slot, a depending beak integral with the plate adjacent the slot, depending ears upon the top plate, a bottom plate, vertical lugs upon the bottom plate, a pintle travers ing the ears and lugs, a transverse shoulder upon the bottom plate adjacent the piutle. an acute angularly disposed arm upon the forward end of the plate-engageable at its lower end with the beak and projecting above the top plate through the slot, a finger on the free end of the arm engageable with the upper face of the top plate, and a spring upon the pint-1e engaging both plates.

2. In a snap fastener, a lozenge shaped top plate provided at its rear end with an eye, a beak integral with the forward end of the plate, said plate being provided with a transverse slot adjacent the beak, lateral ears upon the broadest portion of the plate, a bottom plate, lugs upon the rear end of the bottom plate, a pintle upon which the ears and lugs are pivoted, a helical spring sur rounding the pintle, diverging arms upon the spring engaging the plates, an arm intogral With the bottom plate and disposed air gularly thereto engageable With the beak, and projecting through the slot, and a lion Wardly extending flat finger upon the arm 1 overlapping the top plate.

In testimony whereof I have afiixod my signature.

GEORGE KOLLSTEDE.

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