Drilling apparatus for structural steel shapes

Details Drilling apparatus for structural steel shapes Drilling apparatus for structural steel shapes

1989-07-05

1991-05-28

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

With control means energized in response to activator...

To control relative positioning of tool and work

408130, 408 88, B23B 4722

Patent

active

050189115

ABSTRACT:
A drilling device for drilling holes in structural steel shapes utilizes a control system having a pair of control pistons to set the drill bit at an optimum distance from the workpiece for repeated drilling of holes through material of a given thickness. The control device responds to position switches sensing the positions of the drill-feed cylinder and the control pistons.

REFERENCES:
patent: 2733691 (1956-02-01), Johnson
patent: 3326067 (1967-06-01), Nelson
patent: 4175413 (1979-11-01), van Geffen
patent: 4412465 (1983-11-01), Wright
patent: 4664566 (1987-05-01), Peddinghaus
patent: 4676700 (1987-06-01), Peddinghaus

Affiliated with

Also associated with

Rating

Drilling apparatus for structural steel shapes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drilling apparatus for structural steel shapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drilling apparatus for structural steel shapes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-32206