US2148585A - Clasp for bracelets, wrist watches, waist girdles, etc. - Google Patents

Description

.Febgg 393g. E. o. scHLEslNGER CLASP FOR BRACELETS, WRIST WATCHES, WAIST CIRDLES, ETC

Filed April 25. 19,35

l l l l l 1 v Petented Feb. 2s, ,1939

PATENT oFFlcl:l

. ,Y 2,148,585 cLAsr Eon BRACELETS, wms'r WATCHES,

WAIST GIRDLES, ETC.

Ernst Oskar Schlesinger, Vienna, Austria Application April 25, 1935, Serial No. 18,123 In Austria. April 25, 1934 1 claim. (ci. :a4-qs) 'Ihis invention relates to a clasp for bracelets, wrist watch bracelets, belts and similar bands, and means for connecting a bracelet or band vwith a watch or the like. f

The known clasps are open to the objection that they can easily become undone by accident. In order to avoid this, constructions are known with separate locking means. Such clasps areJ however, complicated and delicate, difficult and inconvenient to ,open and close, which is'particularly objectionablev as it is often required to remove and put on the article fitted therewith several times a day. Moreover, these clasps are l5 not readily adjustable. so that the size of an article tted therewith oncel adjusted cannot be altered without diillculty. Further the connection of a watch or the like with such an Varticle is not possible without separate attaching means.

The clasp according to the invention overi zo comes these objections, is suitable for bands of any material,A such as leather, metal or the like, and does, not require any separate locking means as it is self-locking'. v 'I An embodiment ol.' the invention is illustrated by way `oi example in the accompanying draw- Fging, in which: Y

Fig. 1 is a vertical longitudinal section, and

Fig. 21s a plan view of the clasp partly broken I open. 3 Referring now to the drawing, one end I2 o! a band whose ends are to be connected by the clasp, is threaded through a slot in a transverse bar I4 at the rear end of a frame I, andpushed "as i'ar as a transverse bar I5 at the frontend o! the frame, and a bracket 3 whose free end is shapedvas a buckle I0, is secured -on theother endlloftheband. A

A spring tongue 2 is mounted inthe side walls oi' the frame I near the front end of thesame to 40 turn about a pivot I, and is equipped with a jaw 'I for gripping the end o! the band when it is in the frame I. Pivoted-at 0 near the rear end'oi thesframe Isa cover plate S'with a Jaw 8 for admins the band. g

45 'i'o open thefclasp, the plate is swungupwards and the edge of lits locking member moves away from the slide I. lIhe'tonguel is then in turn swung upwards moving the edge of its locking memberl away from the slide I.

0 ne und, end I2 is now slipped between the vpiatelandllide-I and the tonsuel'andslide I. '.lhereafterthetrame Ilclampedontheother end I3 of the band isslipped on the tongue 2 whereupon this tongue 2 is depressed so that it bears against the top of the band end I Zand thus securely holds the frame IIJ slipped on to the vtongue as already described. At the same time the locking member 4 of the tongue 2 presses the band end I2 tightly against the front end of the slide I. 'I'he cover plate 6 is then swung down or depressed and covers the tongue2 so that it cannot rise and release the frame I Il, 1'

whereas the locking member 8 also presses the y band end I2 against the other end of the slide I thereby still more securely connecting the clasp and the band. l

To undo the clasp these operations are carried out in the reverse order, that isy the cover plate j 6 is rst raised thereby uncovering the tongue 2 which can then be raised in turnso that the frame .I0 can be slipped oi the tongue 2 and the band end I2 pulled out from between the slide I and the tongue 2V at one end /of the slide and the slide I and the cover plate 2 at the other l end of the slide. The cover plate 6l is of such width that it completely covers the top of the frame so that the clasp cannot be undone until this plate has been forcibly raised.

The jaws 4 and 8 are set at such an angle to the tongue 2 and cover plate 6 respectively that, when the tongue and plate are swung down into their closing position, these members have passed their dead centre positions and, under the resiliency oi the band which they are clamping, press the Atongue and plate downwards towards the band, thereby overcoming all tendency oi the tongue and plate to automatically swing upwards away from the band. l u

I claim: f

-A clasp for connecting the two ends of a band, comprising a bracket secured tonne end ofthe band, a buckle on the bracket, a frame arranged to receive the other end `of the band, a spring tongue pivotally mounted in the trame and arranged to be threaded through the buckle. a

cover plate also pivotally mounted in the frame and arranged to fold the tongue down on the band in the frame, a jaw on the tongue anda law on the cover-plate, both for gripping the band in the frame, the length Vo1.' the tongue being so determined that in its folded-down position its tree end bears against the jaw ot the-cover plate. n

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