Chain saw chain for digging trenches

Details Chain saw chain for digging trenches Chain saw chain for digging trenches

1985-06-13

1987-03-24

Burr, Edgar S.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

37191R, 37 96, E02F 314, E02F 506

Patent

active

046514490

ABSTRACT:
A trench-digging chain mountable on a chain saw with no more than minor modification of shielding includes high, narrow cutters on the side of the chain closer to the engine and clutch of the chain saw power unit and low, wide carrier teeth on the opposite side of the chain. The narrow width permits installation of the chain in the clearance normally provided between a drive sprocket and the engine. The carrier teeth include a surface which is approximately horizontal during use, to carry material upwardly out of a trench being dug. Intermediate links include roots to be driven by the drive sprocket and slide in the peripheral guide channel of the saw bar.

REFERENCES:
patent: 1284447 (1918-11-01), Poulter
patent: 2211525 (1940-08-01), Stenger et al.
patent: 2991571 (1961-07-01), Hyster
patent: 2997276 (1961-08-01), Davis
patent: 3104481 (1963-09-01), George et al.
patent: 3614838 (1971-10-01), Wherry
patent: 3754341 (1973-08-01), Caldwell et al.
patent: 3834049 (1974-09-01), Bond
patent: 3846922 (1974-11-01), Horton
patent: 3979843 (1976-09-01), Nissen
patent: 4429477 (1984-02-01), Tice et al.

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