Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1987-10-05
1989-08-01
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51241R, B24B 1900
Patent
active
048523062
ABSTRACT:
The present invention relates to a toolholder device for a machine tool.
A device according to the invention integral with a table (3) moveable in two directions perpendicular to one another comprises a toolholder spindle (1), a sleeve (2) with a lower bearing surface (2a) of convex sphericity, a housing (3) with a seat (3a) of concave sphericity, and means (4) for generating a magnetic field which repel or attract the bearing surface of the sleeve and which are associated with the seat (3a).
The invention is used particularly in toolholder spindles for valve-seat grinders.
REFERENCES:
patent: 2796788 (1957-06-01), Bohn
patent: 4180946 (1980-01-01), Heijkenskjold et al.
patent: 4365917 (1982-12-01), Harmand
patent: 4461463 (1984-07-01), Okubo
Rachuba Maurina
Schmidt Frederick R.
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