Cutting by use of rotating axially moving tool – Machine including plural tools – Coaxial tools
Patent
1978-02-06
1979-12-18
Culver, Horace M.
Cutting by use of rotating axially moving tool
Machine including plural tools
Coaxial tools
408 41, 408 46, 408 52, B23B 4100, B23B 3922
Patent
active
041792300
ABSTRACT:
A multiple spindle drilling machine for wide flange beams comprising at least a pair of wide flange beam supporting rollers for setting and supporting both the flanges of a wide flange beam, respectively, in a cantilevering manner at the drilling position of the wide flange beam, at least a pair of gripping members for gripping the wide flange beam from both the sides thereof so that the beam is not moved, a plurality of drills disposed so that they can move in the lateral direction and the widthwise direction of the wide flange beam for drilling the wide flange beam, and a device for moving at least one of said wide flange beam supporting rollers, said gripping members and said drills integrally in the widthwise direction of the wide flange beam.
REFERENCES:
patent: 613225 (1898-10-01), Pearson
patent: 2956453 (1960-10-01), Frankenfield et al.
patent: 3090261 (1963-05-01), Hill
patent: 3094015 (1963-06-01), Mead
patent: 3372609 (1968-03-01), Wingne
patent: 3687563 (1972-08-01), McConnell
patent: 3977804 (1976-08-01), Kitagawa
patent: 4030853 (1977-06-01), Mizen
patent: 4090803 (1978-05-01), Haley
Culver Horace M.
Miyakawa Industry Company Limited
Oujevolk George B.
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