1977-08-11
1979-01-02
Weidenfeld, Gil
90 131, 90 62R, B23C 335
Patent
active
041321510
ABSTRACT:
For milling a control groove in a vehicle safety key there is used a motor-driven milling head connected by a linkage such as a pantograph to a tracer member. The tracer member follows a template groove. Since it is desired to vary the shape of the groove the template groove of the present invention is formed in sections on a plurality of strips some or all of the strips carrying several groove sections, said strips being shiftable in relation to each other so as to join up selected sections of the strips to form a single groove.
REFERENCES:
patent: 2282473 (1942-05-01), Hoffmann
patent: 2477999 (1949-08-01), Miller
patent: 2551182 (1951-05-01), Tillett et al.
Drucker William Anthony
Neiman S.A.
Weidenfeld Gil
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