Trenching apparatus and methods of forming inground retaining wa

Details Trenching apparatus and methods of forming inground retaining wa Trenching apparatus and methods of forming inground retaining wa

1987-06-08

1989-07-04

Burr, Edgar S.

Excavating

Ditcher

Wheel excavator

37192A, E02F 506

Patent

active

048437425

ABSTRACT:
A trenching apparatus (10) is for excavating deep trenches in which inground concrete retaining or foundation walls may be formed. The trenching apparatus (10) has a crawler base (11) on which a carrier assembly (14) is pivotally supported by pivots (16) whereby it may be tilted by rams (17) to maintain the platform horizontal. An automatic control device (64) is provided for this purpose. The carrier assembly (14) has a pair of rails (18/19) along which a carriage (21) may move. The carriage (21) supports a sleeve (24) through which a trenching arm (25) may be lowered to excavate a trench section as the carriage (21) is driven along the rails (18/19).

REFERENCES:
patent: 2817911 (1957-12-01), Owen et al.
patent: 3032899 (1962-05-01), Brinson Sr.
patent: 3425572 (1969-02-01), Brach
patent: 3659364 (1972-05-01), Wilson
patent: 3787989 (1974-01-01), Heckathorn
patent: 4236857 (1980-12-01), Willi

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