Overhead gantry

Details Overhead gantry Overhead gantry

1985-10-17

1988-01-12

Peters, Jr., Joseph F.

Traversing hoists

With haul-in line

212204, 212218, 212182, 116 63P, B66C 1100

Patent

active

047185635

ABSTRACT:
The instant invention concerns a transportable overhead gantry for spanning a roadway having two supports linked in an articulated manner to a cross-member. The cross-member is adjustable for height, for example using a winch operable to move the cross-member along the supports and, being made up of three or four parts, can be telescopically retracted. The supports can be folded towards each other in a plane defined by the cross-member so that the entire overhead gantry can be transported on a conventional truck. The overhead gantry can be erected at any point along a multi-lane expressway without special machinery or equipment and is thus suitable for the rapid and temporary display of traffic signs.

REFERENCES:
patent: 2343014 (1944-02-01), Langan
patent: 2419145 (1947-04-01), Kersenbrock et al.
patent: 4543905 (1985-10-01), McKenney
patent: 4616225 (1986-10-01), Woudenberg

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