Arrangement for drilling holes to apply builders' hardware on wi

Details Arrangement for drilling holes to apply builders' hardware on wi Arrangement for drilling holes to apply builders' hardware on wi

1975-10-30

1977-09-27

Shore, Ronald J.

Cutting by use of rotating axially moving tool

Machine including plural tools

Plural, simultaneously operational tools

B23B 3918

Patent

active

040508382

ABSTRACT:
An arrangement for the drilling of holes to apply builders' hardware to windows in which an upper locating rail for accommodating a window frame is located between side members of a framework. A fixed drilling assembly with several spindles is located above the center of the locating rail. The spindles from the drilling assembly are lowerable. Two pipes above and parallel to the locating rail carry two auxiliary drilling assemblies which are coupled by a cable connection. The auxiliary drilling assemblies have several lowerable spindles and can be moved synchronously in opposite directions on the pipes.

REFERENCES:
patent: 658670 (1900-09-01), Nash
patent: 1180280 (1916-04-01), Barnes
patent: 1228110 (1917-05-01), Hanson
patent: 1710744 (1929-04-01), Roe
patent: 2789598 (1957-04-01), Berger
patent: 2890730 (1959-06-01), Gottlieb
patent: 3529496 (1970-09-01), Haley
patent: 3682560 (1972-08-01), Suizu
patent: 3749507 (1973-07-01), Haley

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