Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1992-02-28
1993-03-30
Corbin, David H.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405272, E02D 1708
Patent
active
051978296
ABSTRACT:
A support device for lining ditches having braces for extending across the ditch and vertically extending guiding uprights which are supported by the braces. The guiding uprights include a U-shaped rail with leg members and parallel guide ridges extending in vertical direction located on each of the leg members on the inner portion of the U-shaped rail. Lining plates are provided with vertically-extending end faces, including a plurality of axles with guide rollers rotatably mounted thereon. The axles project outwardly from the end faces, and are alternately displaced on either side of a vertically extending line disposed along the center of the end faces. The lining plates are guided by alternating contact of the guide rollers with the parallel guide ridges of each of the leg members.
REFERENCES:
patent: 3910054 (1975-10-01), Krings
patent: 4421440 (1983-12-01), Scheepers
Corbin David H.
Teska Verbautechnik GmbH
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