Air logic circuit for airfeed peck drill

Details Air logic circuit for airfeed peck drill Air logic circuit for airfeed peck drill

1991-12-30

1993-06-29

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Including means to cause tool to progressively vibrate...

173 19, 408130, B23B 4722

Patent

active

052228444

ABSTRACT:
An improvement to an air logic circuit for an airfeed peck drill includes the insertion of an advance valve into the timer circuit. This advance valve generates a signal to actuate the timer circuit only after the drill quill has fed forward through rapid advance.

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