Cutting – By endless band or chain knife – With tool in-feed
Patent
1985-02-28
1987-02-03
Schran, Donald R.
Cutting
By endless band or chain knife
With tool in-feed
83795, 83574, 834041, 30371, B27B 1700
Patent
active
046401709
ABSTRACT:
A chain saw attachment for mounting a chain saw used to cut reclined logs lengthwise includes a substantially right parallelepiped frame which straddles but does not contact the log. The frame is supported by a supporting surface independent of the log and cooperates with mounting means for rigidly mounting the chain saw in a cutting position. The frame is mounted on feet which permit the frame to be slid along the supporting surface, typically the ground. The mounting means includes two sets of clamping members for gripping opposite ends of a saw bar of the chain saw. Each set is supported by a vertical chain saw support member that is vertically adjustable to vary the level of the chain saw's cutting plane relative to the log. Each chain saw support member mounts a nut that is engaged by a threaded rod, rotation of which causes the chain saw support member and hence gripped chain saw to move vertically. Both threaded rods mount respective sprockets which are interconnected by a drive chain. Rotation of one threaded rod causes simultaneous corresponding rotation of the other threaded rod to permit level height adjustment of the entire chain saw.
REFERENCES:
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patent: 4070757 (1978-01-01), Granberg et al.
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patent: 4244104 (1981-01-01), Grube
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Granberg Industries Catalog, "Greater Use and Value From Your Chain Saw", pp. 12-13.
Granberg Industries Catalog Excerpt, "Granberg Chain Saw Equipment", pp. 11-12, 14-15.
Granberg Industries Catalog, "More Money From Your Chainsaw", (8 pages).
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