Tree harvester guide bar

Details Tree harvester guide bar Tree harvester guide bar

1991-01-07

1991-10-15

Bray, W. Donald

Cutlery

Combined cutlery or combined with ancillary feature

With means to apply transient fluid to tool

30382, 83169, 144 34R, B23D 5904

Patent

active

050562240

ABSTRACT:
A guide bar for a saw chain mounted to the boom of a tree harvester. As typical for such guide bars, oilhole holes are provided to receive oil for channeling of the oil to the edge grooves wherein the saw chain is entrained. Not typical of such guide bars is the provision of a pattern of inter-connecting oil channels in the bar for channeling oil to various positions on the bar edge including the bar edges adjacent each oil hole and at the bar nose. C-shaped valves in the oil holes are manually adjusted to control the flow of oil to the various positions.

REFERENCES:
patent: 2605787 (1952-08-01), Kickhaefere
patent: 4802555 (1989-02-01), Matsunaga et al.
patent: 4884340 (1986-12-01), Newman
patent: 4947550 (1990-08-01), Wenzel

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