Support frame

Details Support frame Support frame

1982-09-21

1986-03-11

Murtagh, John E.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Components adjustably or collapsibly connected

52669, 52690, 403297, F16B 704

Patent

active

045745528

ABSTRACT:
Cross-beams, located between column elements of the support frame, contain, at their beam-ends, clamping members which are mounted inside a cavity in the cross-beam body in a manner permitting displacement in the longitudinal direction of the cross-beam, and are capable of being brought into, and out of, engagement with the column elements. These clamping members are expanding elements, coupled together and guided so that they move in pairs, their head part, which engages into the column element, being provided with clamping means and centering means, and being capable of being pushed completely back into the cross-beam cavity. The expanding elements can be forced apart from each other, in a parallel relationship, perpendicularly to the longitudinal axis of the cross-beam, by means of a socket-head screw which can be operated from the outside of the cross-beam.
The design of the clamping members on the cross-beams permits the installation of cross-beams between columns which are already fixed, without dismantling any part whatsoever.

REFERENCES:
patent: 3338602 (1967-08-01), Arnd
patent: 3574367 (1971-04-01), Jankowski
patent: 3966342 (1976-06-01), Moriya
patent: 4388786 (1983-06-01), Gassler
patent: 4485597 (1984-12-01), Worrallo

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