Grinding guide assembly for a hand-held grinding machine for but

Details Grinding guide assembly for a hand-held grinding machine for but Grinding guide assembly for a hand-held grinding machine for but

1990-05-22

1992-08-18

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51241G, 51268, B24B 700

Patent

active

051387972

ABSTRACT:
An arrangement in hand-held grinding machines intended for grinding the buttons of button drill-bits and provided with a driven spindle which carries a grinding disk. The grinding disk presents a profiled groove for shaping respective buttons of the bit to their intended tip profile. In order to enable buttons to be ground quickly and effectively with the aid of a hand-held grinding machine without needing to rotate the button to be ground about its own longitudinal axis, there is provided a spring-steel guide-spring which is mounted fixedly in relation to the grinding disk and which presents on both sides of the disk (4) obliquely and inwardly extending fingers which are intended to engage the button to be ground when the grinding disk is brought into engagement with the button.

REFERENCES:
patent: 2073861 (1937-03-01), Wolf
patent: 4504178 (1985-03-01), Seidenfaden
patent: 4611438 (1986-09-01), Siden
patent: 4977709 (1990-12-01), Siden

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