Multiple spindle drilling machine for wide flange beams

Details Multiple spindle drilling machine for wide flange beams Multiple spindle drilling machine for wide flange beams

1977-11-16

1979-08-07

Vlachos, Leonidas

Cutting by use of rotating axially moving tool

Machine including plural tools

Plural, simultaneously operational tools

408 53, 408 90, B23B 3920

Patent

active

041636236

ABSTRACT:
A multiple spindle drilling machine comprising a drilling device attached to a movable attachment stand to drill a web of a wide flange beam, the drilling device including a plurality of drills aligned in the lateral direction of the web, and a shifting device for swinging and shifting the movable attachment stand from a point on a line rectangularly intersecting a flange of the wide flange beam to the point on a line obliquely intersecting the flange of the wide flange beam with one end of the movable attachment stand being as the center.

REFERENCES:
patent: 3124017 (1964-03-01), Brainard et al.
patent: 3652175 (1972-03-01), Walters et al.
patent: 3749507 (1973-07-01), Haley
patent: 3849018 (1974-11-01), Anderson

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