Harvesters – Cutting – Cutter members
Patent
1988-03-31
1989-08-08
Weiss, John
Harvesters
Cutting
Cutter members
56300, 411424, 411169, A01D 3402
Patent
active
048541141
ABSTRACT:
A sectional sickle bar is provided. The sickle bar includes a plurality of elongated bar segments and means for releasably joining adjacent joining ends of adjacent bar segments. The joining means includes a special section and at least three fasteners. Each fastener includes a bolt, a nut and reciprocal thread means for screwing the nut onto the bolt. Adjacent joining ends of adjacent bar segments are joined together by the fasteners and the special section to form a lap joint. In a preferred embodiment, a special fastener having an oblong shank is provided. Preferably, the fastener has an offset threaded end portion for receiving a reciprocally threaded nut.
REFERENCES:
patent: 409696 (1889-08-01), Motherwell
patent: 1233950 (1917-07-01), Aidlotte
patent: 1340868 (1920-05-01), Aidlotte
patent: 1570645 (1926-01-01), Roche
patent: 3561203 (1971-04-01), Hurlburt
patent: 3664103 (1972-05-01), McNair
patent: 3941003 (1976-03-01), Garrison et al.
Crary Company brochure for Split Sickle Bar and Self Sharp Sickle, Crary Company, Fargo, N.D. (published on a date unknown prior to Aug. 17, 1987).
Herschel Corporation
Weiss John
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