Harvesters – Motorized harvester
Patent
1980-04-21
1982-02-16
Hafer, Robert A.
Harvesters
Motorized harvester
56DIG9, 280765, A01D 3512
Patent
active
043153950
ABSTRACT:
A jack stand for attachments, such as the feeder house/header combination, to agricultural machines, such as a combine, is disclosed wherein the jack stand includes a supporting plate attachable to the attachment and provided with an arcuate row of holes spaced even radial distances about a pivot and a pair of telescoping leg members, one of which is pivotally connected at one end to the pivot. A bracket, spaced from the pivot at said same radial distance from said pivot as the arcuate row of holes, is affixed to one of the leg members to receive a pin passed through a selected hole of said arcuate row thereof to establish said leg members at a desired angle relative to a supporting surface. One of the leg members includes a row of transverse holes which is alignable with at least one transverse hole in the other leg member to receive a pin therethrough to establish a desired length of said leg members. A shoe is pivotally connected to the outer end of the other leg member at a point offset from the center of gravity of the shoe. The jack stand being operable to effect a substantial range of vertical support distances between the pivot adjacent the attachment and a supporting surface engaged by said shoe, such that the minimum support distance required of the jack stand is less than the total length of the telescoping leg members in their collapsed state.
REFERENCES:
patent: 2323423 (1943-07-01), Schmidt et al.
patent: 3489428 (1970-01-01), Hunter et al.
patent: 3641747 (1972-02-01), Bobard
patent: 3665688 (1972-05-01), Sheehan et al.
patent: 3682497 (1972-08-01), Dalton
patent: 4172392 (1979-10-01), Foster
Overly Carl G.
Randall Stephen E.
Hafer Robert A.
Just C. Hercus
Miller Larry W.
Seemar Frank A.
Sperry Corporation
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