Electric heating – Metal heating – By arc
Patent
1985-01-30
1986-04-08
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913001, 901 42, B23K 912
Patent
active
045815178
ABSTRACT:
A teaching device is provided for use in teaching a computer a program for moving a tool through a three dimensional space and along a predetermined path having a socket at one end for attachment to the tool and at its other end a cavity in which a ball is seated so that the ball may contact and be moved over means defining the predetermined path. Preferably, the teaching device forms a part of an electric circuit used in protecting the teaching device from destruction or other damage.
REFERENCES:
patent: 4014495 (1977-03-01), Oda et al.
patent: 4224501 (1980-09-01), Lindbom et al.
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