Cutting – Cutter assemblage or cutter element therefor
Patent
1988-07-07
1989-10-17
Yost, Frank T.
Cutting
Cutter assemblage or cutter element therefor
83834, B27B 3314
Patent
active
048739030
ABSTRACT:
Saw chain is assembled with wear links for improving the resistance of saw chain to abrasion from the saw bar. In one embodiment, the wear links are mounted one beside each steel side link in the chain and are constructed to ride along the outer surfaces of the pair of parallel rails upon which the side links also ride as the chain is driven around the bar. The wear links, however, are formed of a material that better resists abrasion than steel but consequently has less tensile strength. To assure that the tensile load on the chain is assumed by the steel side links while the chain is supported on the bar by the wear links, the wear links have oblong pin openings of the same height but of greater length than the circular openings of the side links. In a second embodiment, the wear links are mounted on both sides of each drive link rather than beside each side link.
REFERENCES:
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patent: 2801653 (1957-08-01), Van Wagner
patent: 2897857 (1959-08-01), Carlton
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patent: 4459890 (1984-07-01), Dolata et al.
patent: 4768289 (1988-09-01), Apfel et al.
Omark Industries, Drawing No. 13037, 12/12/1977.
Blount, Inc.
Jones Eugenia A.
Yost Frank T.
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