Trench supporting assembly

Details Trench supporting assembly Trench supporting assembly

1990-04-10

1991-10-01

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

248357, E02D 1708

Patent

active

050528629

ABSTRACT:
The trench assembly comprises shoring plates supporting the side walls of the trench, vertical posts holding the shoring plates and at least one spindle or shore for the support of two oppositely located posts, the plates, include respective front sides pressed against the associated posts and curved in the vertical plane so that they can roll on the posts when the assembly is lowered.

REFERENCES:
patent: 2574857 (1951-11-01), Ball
patent: 3001754 (1961-09-01), Fowler
patent: 3881679 (1975-05-01), Krings
patent: 3950952 (1976-04-01), Krings
patent: 4004771 (1977-01-01), Plevak et al.
patent: 4139324 (1979-02-01), Krings

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