Electric heating – Metal heating – Cutting or disintegrating
Patent
1980-02-25
1982-03-09
Shaw, C. C.
Electric heating
Metal heating
Cutting or disintegrating
219 69E, B23P 112
Patent
active
043191150
ABSTRACT:
An electrode tool holder for an EDM apparatus which can support either an electrode tool of large size or an electrode tool of small size. The EDM apparatus is provided with a ram consisting of two separate, preferably concentric, linearly movable slide members. One of the slide members, linearly displaceable by a servo motor, carries a holder for an electrode tool of small dimension. The second slide member, although normally linearly displaceable relative to the first slide member, is arranged to be coupled to the first slide member for supporting an electrode tool of large dimension, both coupled slide members being thus driven by the same servo motor.
REFERENCES:
patent: 3222494 (1965-12-01), O'Connor
patent: 3443054 (1969-05-01), O'Connor
patent: 4229635 (1980-10-01), Dinsdale
Ateliers des Charmilles
Shaw C. C.
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