Elongated-member-driving apparatus – With means to support member and/or work relative to driver – Work immobilizer
Patent
1978-06-06
1979-11-13
Bell, Paul A.
Elongated-member-driving apparatus
With means to support member and/or work relative to driver
Work immobilizer
100DIG13, 144288C, 269321F, B25C 700
Patent
active
041740610
ABSTRACT:
A portable truss fabricating apparatus in the nature of a trailer enables convenient and expeditious manufacturing of wooden trusses on the job site. The use of dual articulated and counterbalanced booms on an elevated support structure of the apparatus with a conventional hydraulic C-clamp suspended by a cable from one boom places any joint on the truss in easy reach of the operator without shifting the truss lumber, and giving the operator complete freedom of movement without the burden of carrying the hydraulic C-clamp. The truss supporting bed of the apparatus includes both longitudinal and transverse extension members which are retracted during transport. Means to safely stow the dual boom structure and to stabilize the long support bed during transport are also provided.
REFERENCES:
patent: 3487430 (1969-12-01), Schmitt
patent: 3711007 (1973-01-01), Fry
patent: 3752467 (1973-08-01), Stanley
patent: 3896717 (1975-07-01), Schmitt
patent: 3941291 (1976-03-01), Hayworth
Bell Paul A.
Weaver D. Paul
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