Quick assembly modular frame

Details Quick assembly modular frame Quick assembly modular frame

1992-04-07

1993-03-02

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405282, E02D 1708

Patent

active

051904128

ABSTRACT:
A framing module for quickly assembling frames of rectangular towers suitable for supporting protective shields within excavations comprises a horizontal wale connected by hinge to a vertical leg and a locking brace to hold the hinged members in the right angle position. The wale has a tenon and set-back at each end. The hinged end of the leg is adjacent a set-back in the wale and that set-back becomes a mortise when the leg is set at right angle to the wale. The tenon of one module is inserted in the mortise of another module to interlock the modules. A rectangular frame is easily formed with at least four interlocked modules, and duplicate frames can be stacked to reach a desired tower height.

REFERENCES:
patent: 924153 (1909-06-01), Elliott
patent: 1297960 (1919-03-01), Yourtee
patent: 1331186 (1920-02-01), De Garay
patent: 2482367 (1949-09-01), Ravers
patent: 3393521 (1968-07-01), Cammisa
patent: 4685837 (1987-08-01), Cicanese
patent: 5080533 (1992-01-01), Cooper

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