Trenching machine for cutting preferably frozen ground

Details Trenching machine for cutting preferably frozen ground Trenching machine for cutting preferably frozen ground

1981-08-31

1984-02-21

Purser, Ernest R.

Mining or in situ disintegration of hard material

Ice-working devices

Relatively moving cutter

37 90, 37191A, 299 84, E21C 2530, E02F 506

Patent

active

044325843

ABSTRACT:
Disclosed is a trenching machine comprising a vehicle of a tractor type, a drive mechanism, a spoil discharge conveyor assembly, and a digging apparatus including a boom connected with its one end to the vehicle, a power means for raising and lowering the boom, a guide means mounted on the boom, a carrying means moving along the guide means, teeth mounted on the carrying means along alternate first cutting lines and second cutting lines in the direction of movement of the carrying means, the number of the teeth mounted along the first cutting lines being greater than that of the teeth mounted along the first cutting lines across the width of the carrying means being greater than the width of the teeth mounted along the secod cutting lines.

REFERENCES:
patent: 3315384 (1967-04-01), Weyers
patent: 4171582 (1979-10-01), Morooka
patent: 4195427 (1980-04-01), Lanham
patent: 4217001 (1980-08-01), Youngers et al.
Machines for Cutting Frozen Ground, Ed. Telulkin, paragraph 2, pp. 148-150.
Const. & Road Bldg. Machines 1978, #5, pp. 4-6.
Highway & Heavy Const., Jul. 1976, p. 62.
Highway and Heavy Const., May 1976, pp. 122-123.
Const. & Road Bldg., 1978, #12, pp. 4-6.

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