US1839776A - Finding for clasps - Google Patents

Description

Jan. 5, 1932. SAVITZKY I 1,839,776

FiNDING FOR CLASPS Filed Oct. 28, 1931 INVENTOR Gama SHVITZK BY ATTORNEYC:I g

Patented Jan. 5, 1932 UNITED STATES ABRAHAM SAVITZKY, OF NEW YORK, N. Y.

FINDING FOR GLASPS Application filed October 28, 1931. Serial No.-571,492.

This invention relates to new and useful improvements in a finding for a clasp.

The invention relates particularly to a finding which is composed of a backing member pivotally connected with a jaw member,

means for urging said members together, and

a stop for limiting closing of the members about said pivot.

In the trade, it is the custom to solder finding members upon the backs of ornamental members and the provisionof the stop for preventing closing of the members causes the condition in which the backing member may be rested fiat against the back of the ornament and readily soldered on. In practice, it is found quite often thebacking members do not rest fiat against the back of the ornamental member. The cause of this may be a slightly bent ornamental member .or jaw member on the finding. It is an object of this invention to construct a stop which is resilient so as to allow a certain amount of forced relative movements between the backing member and the aw member to provide for the backing member assuming a flat position against the back of the ornament. This facilitates the soldering.

As another object of this invention it is proposed to locate the stop of the finding in 3 a manner so that the finding may be manufactured at a minimum cost.

As a still further object of this invention it is proposed to construct the means for urging the members together in the form of a fiat spring and to mount the stop upon the spring in a manner so that the jaw member is limited to close to a position substantially parallel with the flat spring, and in turn, the fiat spring carry the bac ring member so that it is substantially parallel to the spring.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following descripti on and accompanying drawings, and to the appended claims in which the various novel features of theinvention are more par ticularly set forth.

In the accompanying drawings forming a material part of this disclosure Fig. 1 is a perspective View of a finding 5o constructed according to this invention.

Fig. 2 is a perspective view of the finding shown in Fig. 1 viewed from the back.

Fig. 3 is a fragmentary sectional view taken on the line 3-8 of Fig. 1.

The finding consists ofa backing member 10 pivotally connected with a jaw member 11. The backing member 10 is stamped from sheet material and is formed with side lugs 12 adapted to receive small projections 13 on on the sides ofthe jaw member 11. The jaw member is formed with several prongs 14 for engaging against the back of an ornament to clamp the ornament upon clothing. I

A neans is provided forurging the back member and jaw member. together. This means consistsof a fiat spring 15 located between the backing member and the jaw member.

The ends of the spring 15 are formed with cutouts 16 producing prongs 17 engaging on opposite sides of a reduced neck 18 connecting the lugs 12 with the backing member. The prongs 17 thus hold the backing member 10 substantially parallel with the spring.

he spring 15' is of a slightly greater length than the distance between the reduced portions 18 of the backing member so as to be arched away from the backing member as clearly shown in Fig.1.

The rear end of the jaw member 11 is formed with an upturned lip 19 engaging against the bottom rear edge of the spring 15. This lip is formed curved so as to allow opening of the jaw member 11 relative to the 35 backing member by reason of bowing the spring 15 upwards. In the closed position of the finding, the spring 15 presses downwards on the lip 19 so as to cause the main portion of the jaw member to tend to move 9 towards the backing member 15. A finger 20 projects from the edge of the spring 15 which is opposite the lip 19 and is directed down against the jaw member 11. Consequently, as the spring 15 tends to pivot the jaw member 11 towards the backing member 10, the parts will be arrested and assume positions in which the backing member 10 is substantially parallel to the jaw member 11.

The arrangement of the stop member 20 upon the spring has several distinct advantages. One advantage is that the backing member 10 is resiliently held relative to the jaw member 11. This allows rocking of the backing member relative to the jaw member within limits which does not cause the open ing of the finding. Such rocking provides for the proper fitting of the backing memher on the rear of the ornament. A second advantage in the location of the stop finger on the spring is thatthe finding may thus be manufactured at a cheaper price than if the stop fingerwere located on eitherthe backing member or the aw member. This is so in that the backing member and the jaw memberis commerciallyformed of German silver of a gauge approximately .025 of an inch and the spring is formed from high carbon steel approximately .012 of an inch. The cost of the German silver is materially higher than the cost of the steel. Since the stop is located upon the spring and not the jaw or backing member, less material is needed on the jaw and backing members. More than this, since the stop is located on the spring, it is of a smaller size than if located either on the backing member or jaw member and acting against the other.

While I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I therefore reserve the right and privilege of changing the form of the details of construction or otherwise altering the arrangement of the correlated parts without departing from the spirit or the scope of the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is 1. In a finding for clasps, a backing member, a jaw member pivotally connected with the backing member, a lip on one of said members near the pivot, a fiat spring bowed between said lip and the other member and fixedly connected with the said member to close the front ends of said members and extending to the other side of said pivot, and a finger projecting from the latter-mentioned side of said flat spring and engageable against the member formed with the lip I to limit pivoting of the member to a position v substantially parallel to the spring.

2. In a finding for clasps, a backing mem-

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