Device for tightening bolts

Details Device for tightening bolts Device for tightening bolts

1978-04-11

1979-11-06

Combs, E. M.

Metal working

Means to assemble or disassemble

By rotation of work part

81 524R, 81 525, B23P 1904, B25B 23147

Patent

active

041730593

ABSTRACT:
There are disclosed a method and device for tightening bolts, characterized by including drive means, detection means and control means whereby a bolt (or nut) is turned at high speed until it comes in contact with the tightening bearing surface of a member to be clamped (such as a plate), whereupon it is turned at low speed through a predetermined angle until it is stopped at a predetermined tightening completion position.

REFERENCES:
patent: 2691314 (1954-10-01), Stevens et al.
patent: 2720803 (1955-10-01), Rice et al.
patent: 2893278 (1959-07-01), Rice
patent: 2951389 (1960-09-01), Wille
patent: 3454111 (1969-07-01), Niess
patent: 3827506 (1974-08-01), Himmelstein et al.
patent: 3965778 (1976-06-01), Aspers et al.
patent: 3969810 (1976-07-01), Pagano

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