Abraham Winzelberg

US Patent:

41038827, Aug 1, 1978

Filed:

Sep 29, 1977

Appl. No.:

5/837852

Inventors:

Abraham Winzelberg - Flushing NY

International Classification:

B25B 514

US Classification:

269 51

Abstract:

An apparatus for use in forming a finish on a jewelry band has a base, a chassis rotatably mounted to the base and a mandrel rotatably mounted to the chassis. The mandrel is operable to engage the blank jewelry band on which the finish is to be formed. The apparatus further includes means allowing the chassis to be secured in position relative to the base and means allowing the mandrel to be secured relative to the chassis. The finish is produced by positioning a forming tool having a predetermined front cross section against the blank jewelry band and striking the forming tool, forming an indent in the band corresponding to the shape of the forming tool. The relative independence of the mandrel, chassis and base allows the band to be positioned at an ideal angle for striking.

US Patent:

42855055, Aug 25, 1981

Filed:

Dec 26, 1979

Appl. No.:

6/106937

Inventors:

Abraham Winzelberg - Flushing NY

International Classification:

B25B 514

US Classification:

269 50

Abstract:

An apparatus for use in forming a finish on a jewelry band includes a base including a base plate mountable to a fixed support and having a threaded bore oriented normally to the surfaces of the plate, a chassis including a chassis plate locatable adjacent the base plate and having a bore therethrough, the chassis also including a pair of supports mounted to the chassis plate, threaded screw means for securing the chassis plate to the base plate, and a mandrel having a frustro-conical shape for allowing the mounting of jewelry bands thereon, the supports having apertures therein for mounting the mandrel therein, wherein the chassis plate is rotatable with respect to a work surface upon which the apparatus is placed.

US Patent:

40402851, Aug 9, 1977

Filed:

Jun 29, 1976

Appl. No.:

5/700907

Inventors:

Abraham Winzelberg - Flushing NY

Assignee:

Frank Ellman Co., Inc. - New York NY

International Classification:

B21D 1102

US Classification:

72370

Abstract:

Jewelry bands of various polygonal and arcuate shapes are made by forming an annular blank band to the desired shape. Shaping is achieved by forcing the blank rearward and onto an elongated male member having a tapered front portion which merges into a rear portion with a cross-section of the desired shape. The blank is forced rearward by pressing the male member into an aperture in a female member which is shaped to conform to and receive the rear portion of the male member. Compressing the formed blank against the rear portion of the male member makes it conform more closely to the desired shape, and eases removal of the shaped band from the male member.