Jeweler's tool

Details Jeweler's tool Jeweler's tool

1980-01-07

1981-10-20

Watson, Robert C.

Work holders

Holder inserted within work aperture

269 76, 291606, B23Q 100

Patent

active

042956404

ABSTRACT:
Mandrels for ring working and bracelet working are rigidly supported by a specially adapted mandrel holder secured to a supporting base. A chucking opening is provided in the holder for receiving the mandrel and a fastener is provided for securing the mandrel to the holder. The fastener is adjustable to permit a ring mandrel to be positioned so that selected working positions on the mandrel can be disposed in close proximity to the holder.

REFERENCES:
patent: 263035 (1882-08-01), Fellinger

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