Apparatus for drilling holes in "H" beams

Details Apparatus for drilling holes in "H" beams Apparatus for drilling holes in "H" beams

1978-09-25

1980-04-15

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Machine including plural tools

Plural, simultaneously operational tools

408 16, 408 46, 408 51, 408 52, B23B 3918

Patent

active

041981812

ABSTRACT:
There is disclosed an apparatus for drilling holes in the web and a flange of an H-beam on opposite sides of the web, which comprises a framework having a first, fixedly mounted section and a second section which is mounted on the first section for guided vertical movement with respect to it. Vertical drills for drilling the holes in the webs and horizontal drills for drilling holes in the flange are mounted on the second section of the framework for vertical movement together into positions to permit the beam to be moved through the framework. A means is mounted on the second framework section to monitor undulations in the web so as to maintain the desired position of the horizontal drills relative to the web.

REFERENCES:
patent: 3730635 (1973-05-01), Orendi
patent: 3977804 (1976-08-01), Kitagawa
patent: 4149819 (1979-04-01), Kitagawa

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