Tube louvering machine

Details Tube louvering machine Tube louvering machine

1977-09-30

1979-05-01

Meister, J. M.

Cutting

By tool inside hollow work

Interrelated tool feed means and means to actuate work...

83183, 83194, 83277, 414745, B26F 102

Patent

active

041517695

ABSTRACT:
An apparatus to simultaneously punch a series of louver holes in a tubular workpiece. The apparatus having a series of punches angularly spaced around the workpiece, which punches are caused to reciprocate by the engagement thereof by a series of inclined surfaces of a rotatable member located around the workpiece. The apparatus further includes gripping means to hold the workpiece during punching operations and to move the workpiece in between successive punching operations.

REFERENCES:
patent: 2423791 (1947-07-01), Nelson
patent: 2453681 (1948-11-01), Temple
patent: 3266356 (1966-08-01), Seravin et al.
patent: 3635111 (1972-01-01), Zieg et al.
patent: 4003278 (1977-01-01), Shields

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