Device for cross-cutting tree trunks

Details Device for cross-cutting tree trunks Device for cross-cutting tree trunks

1976-02-24

1978-04-11

Schwadron, Martin P.

Motors: expansible chamber type

Differential

91450, 91459, 83801, 144 34R, A01G 2308, F15B 1104

Patent

active

040832910

ABSTRACT:
A device for cutting trees has two chain saws. For engaging the tree the chain saws are pivotable towards each other with the aid of feeding means. The power supplied to the saw chains is sensed and when an upper power limit is reached the feeding means is irreversibly set to the next lower of a small number of preselected feeding speeds.

REFERENCES:
patent: 3363514 (1968-01-01), Ramoke
patent: 3590688 (1971-07-01), Brannon
patent: 3848648 (1974-11-01), Dika
patent: 3886985 (1975-06-01), Iarocci

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