Means and method for lubricating core drills

Details Means and method for lubricating core drills Means and method for lubricating core drills

1984-05-31

1985-09-17

Yost, Frank T.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

51209R, 125 20, 175393, 408 60, 408145, 408206, B23B 3500

Patent

active

045417580

ABSTRACT:
The present invention includes an insert securably mountable within the chamber of a core drill, such as a chamfering diamond core drill used for drilling and chamfering glass articles. The insert preferably includes a first diverting facility for diverting a first portion of a lubricating/cooling fluid from within the core drill to the inner drilling surfaces of the core drill, and a second diverting facility for diverting a second portion of the lubricating/cooling fluid to the outer drilling surface and chamfering surface of the core drill, to prevent thermal damage to the article being drilled and chamfered, during both the drilling and chamfering steps. The present invention further includes a method of lubricating/cooling an article during drilling and chamfering operations with lubricating/cooling fluid from within the core drill, to prevent thermal damage to the article being drilled.

REFERENCES:
patent: 3016662 (1962-01-01), Ellis
patent: 3153885 (1964-10-01), Keller et al.
patent: 3592554 (1971-07-01), Takahara
patent: 3617145 (1971-11-01), Celmer
patent: 4129401 (1978-12-01), Berthier

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