Metal deforming – By or with work-constrainer and/or manipulated work-forcer
Patent
1983-08-02
1985-06-04
Larson, Lowell A.
Metal deforming
By or with work-constrainer and/or manipulated work-forcer
72705, 248352, 254DIG1, B21D 112
Patent
active
045206490
ABSTRACT:
A horizontal base plate structure is provided having a central opening therein and a plurality of marginal portions spaced about the central opening and disposed in a plane slightly spaced below the portions of the base plate structure defining the central opening. Upright central post structure is supported from a central portion of the base plate structure and attaching structure is carried by the upper end portion of the central post structure for attachment to a vehicle frame. Also, anchor structure is carried by the base plate structure and operative through the central opening therein for engagement with and tightly drawing the central portion of the base plate structure downwardly relative to a floor anchor over which the base plate structure may be disposed. In addition, the central post structure includes circumferentially spaced adjustable length elongated downwardly and outwardly inclined braces connected between circumferentially spaced portions of the upper end portion of the central post structure and the aforementioned marginal portions of the base plate structure. By tightly drawing downwardly on the central portion of the base plate structure, the latter is slightly flexed and the braces are placed under compression to rigidly brace the floor engaging marginal portions of the base plate structure with the floor upon which the base plate is disposed relative to the corresponding circumferentially spaced portion of the upper end portion of the central post structure.
REFERENCES:
patent: 2439854 (1948-04-01), Lipski
patent: 3091278 (1963-05-01), Padgett
patent: 3990207 (1976-11-01), Eck et al.
patent: 4064668 (1977-12-01), Carter
patent: 4337636 (1982-07-01), Clausen
patent: 4344314 (1982-08-01), Aldrick et al.
patent: 4400969 (1983-08-01), Specktor
Jacobson Harvey B.
Larson Lowell A.
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