US1600142A - Jeweler's tool - Google Patents

Description

v Sept. 14 1926;

, 1,600,142 M. ROTHENBERG ET AL VJEWELER S TOOL Filed NOV. 1924 INVENTOR5 WITNESSES I ,j/flzrm Roi/22476 3 ATTORNEYS I 30 Figure 2 is an enlarged ward portion of the tool partlally in section;

Patented Sept. 14, 1926..

amojmmammqzwn 115mm;senator-saw;You;a Y,

' Ernwnn-Ensroon 1 Application filed-November 21, 1924:- Serial are. 751,309.

' Our invention relates to a tool used by jewelers and provided with concave roller at'the front end for beading overva sctting to retain the gem or stone thereinand so formed as to produce an engraved surface on the beaded-or fiangedpver portion. The tool usually employed has a-fixed roller with a shaft running transversely through the front end of the tool in which the roller turns. The roller thus permanently secured in the tool necessitates the employment of several tools in the set since the roller of each tool has a different width to suit a stone and setting of a given size.

The general objectof our invention is to provide a single tool in which the roller is removably secured whereby rollers of varying sizes may be employed according to the requirements of a given piece of work.

The manner and means whereby the above and other objects are attained will clearly appear as the description proceeds.

Reference is to be had to the accompanying drawings forming a part of this specifi- 25 cation, it being understood that the drawings are merely illustrative of one example of the invention.

Figure 1 is a side elevation of a tool embodying my invention;

view of the for- Figure 3 is an elevation of the front end of the tool with the roller omitted;

Figure 1 is a crosssection in a plane indicated by the line 14 of Figure 1;

Figure 5 is a perspective view of one of the rollers.

In carrying out our invention. in accordance with the illustrated example, the body 10 of thetool is made tapering'and the rear endhas a tang. or shank 11 to receive a suitable handle (not shown).

At the front end the tapering body 10 is I offset at a slight angle-and a slit is formed in said offset portion to give it a fork formation presenting side arms 12. The arms 12 at the inner sides are formed with lateral shoulders 13, thereby producing terminal side members 14.- of reduced thickness. Between the terminals 14 a roller 15 is accommodated and said roller turns on trunnions 16 formed integrally with the terminal memthreaded externally as indicatedat 17 J and receive an elongated tapering. nut;18;

WVith the .above described arrangement the forward turning of .tthe. nut .18. on the 'zre'silient forksmembers 12 will permit .saidnnemheirs to be spread apart sufficiently to withdraw the trunnions:16'from the bore 115 of the roller 15 permitting the roller to he slipped out from between the members It and another rollerof a different size substituted. The new roller being in position the stressed fork members 12 are released and permitted to spring toward each other so that the trunnions 16 enter the bore 115 of the roller. The nut 18 is then tightened up andthe roller thus firmly held in position.

he tool is provided with a pocket constituting a magazine for a set of the rollers 15 of different widths as seen clearly in Figure 1. The pocket designatedlQ extends laterally and is adapted to be closed by a splitring oriband 20 disposed about a reduced zone of body 10 in the plane of said pocket. The opening or space 21 between the ends of the split band 20 may be brought to'the front of the pocket 19 by turning said band about the axis of the body 10 to permit entrance and removal of the rollers 15 or said opening 21 may, as is shown in Figure 4, be positioned remote from the pocket 19 whereby the band 20 will effect a closure of the pocket. To hold the band 20 in a posi- 7 tion closing the pocket 19, we form said ring 20 with an indentation 22 adapted to spring into a depression 23 in a side of the 90 body 10. The numeral 24 indicates a sur- 1 face produced at the concave periphery of the roller for the purpose of giving an engraved or ornamental surface to the vbead or flange of the setting when turned over by the roller onto the gem or stone. p

We would state furthermore that while the illustrated example constitutes a practical embodiment of our invention, we do not limit ourselves strictly to the. exact details herein illustrated, since, manifestly, the same can be considerably varied without de parture from the spirit of the invention as defined in the appended claims.

Having thus describ claim: I v I 1. A'tool of the class described including a body slotted at its front end, forming arms, said arms being resilient and formed with members of reduced thickness at the front 110 d our invention, we

end, and shoulders at the inner sides of said arms at the bases of said members, and rigid trunnions on said reduced members at the illner sides and disposed toward each other, said trunnions adapted to engage a roller.

2. A tool of'the class described including a body slotted at its front end, forming arms, arms being resilient and formed with members of reduced thickness at the front end, and shoulders at the inner sides ofsaid arms at the. bases of said members, and rigid trunnions on said reduced members at the inner sides and disposed toward each other, said trunnions adapted to engage a roller;. together with an elongated nut threaded ontosaid arms and adapted to hold the arms against separation in one position of the nut and permitting of the spreading of the arms for the release of the roller in another position of said nut.

3. A tool of the class described comprising a body having resilient arms extending forwardly at the front end of said body, a roller accommodated between the forward ends of said arms, and rigid trunnions on said arms on which trunnions said roller is mounted to turn, together with a nut threaded onto said arms and adapted to hold the same against spreading in one position of the not or to permit spreading of the arms and the release of the roller in another position of the nut.

V MARCO ROTHENBERG.

ISIDOR ATTI AS.

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