Drilling head system for I-beams

Details Drilling head system for I-beams Drilling head system for I-beams

1977-03-01

1978-05-23

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With control means energized in response to activator...

To control infeed

408 42, 408 46, 408 52, 408103, B23B 3916

Patent

active

040908038

ABSTRACT:
A drilling head system for use in simultaneous drilling of a plurality of holes in an I-beam web. The system is characterized by its motor driven control features which permit vertical and horizontal adjustment of a drilling platform and thus the individual drilling spindles with respect to an I-beam supported securely beneath the drilling head.

REFERENCES:
patent: 1457387 (1923-06-01), Neitzel
patent: 2584456 (1952-02-01), Humphreys
patent: 2669135 (1954-02-01), Moore
patent: 3246544 (1966-04-01), Cooper
patent: 3501982 (1970-03-01), Haley
patent: 3552264 (1971-01-01), Meinke
patent: 3977804 (1976-08-01), Kitagawa

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