Wireworking – Article making or forming – Forms and frames
Patent
1983-07-21
1984-10-23
Larson, Lowell A.
Wireworking
Article making or forming
Forms and frames
269 481, 140112, B21F 300
Patent
active
044782608
ABSTRACT:
A wire basket for holding the root system of a plant in a ball of earth has a continuous wire strand aligned to form a tubular grid consisting of a plurality of longitudinally oriented bight strands, and a plurality of helical coils of the wire strand laid about the tubular grid, the crossing points of the bights and the coils being welded. The wire basket is made from a continuous wire strand by laying the strand in a series of back and forth bights aligned in the form of a tubular cage open at both ends, helically coiling the wire across the bights to form a continuous helical wrap, and welding the wire at the crossing points. The basket is formed on a collapsible mandrel having a central shaft, a hub member mounted on one end thereof, and a plurality of radial arms pivotally connected at one end to hub member and circumferentially spaced around the shaft, the arms being adapted to be swung toward and away from the shaft, and to be held at regulatable angles relative to the shaft. The mandrel is provided with guides for holding the wire strand while it is being wound upon the mandrel, the guides being disposed circumferentially about the shaft.
REFERENCES:
patent: 1013572 (1912-01-01), Suman
patent: 1039657 (1912-09-01), Dobkevitch
patent: 1881659 (1932-10-01), Kellems
patent: 3437114 (1969-04-01), Whitacre et al.
patent: 4287840 (1981-09-01), Weidner
patent: 4372351 (1983-02-01), Myers
Braun Nursery Limited
Larson Lowell A.
McLaughlin Linda
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