Apparatus for tightening high-strength steel bolts

Details Apparatus for tightening high-strength steel bolts Apparatus for tightening high-strength steel bolts

1975-12-12

1977-05-03

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 2902

Patent

active

040207200

ABSTRACT:
In the steel construction using high-strength steel bolts which are tightened in a pretensioned state, a method of and an apparatus for tightening high-strength steel bolts by subjecting the mated nuts to the compressive force which equals substantially the force which places the high-strength steel bolts in the pretensioned state.

REFERENCES:
patent: 3128990 (1964-04-01), Brooks et al.
patent: 3162071 (1964-12-01), Biach
patent: 3847041 (1974-11-01), Meschonat et al.

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