Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1982-08-13
1984-06-05
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156296, 1563096, 1563099, 156434, 156552, 209400, 209401, B07B 146, B32B 100, B31C 1300
Patent
active
044526563
ABSTRACT:
Apparatus for making plastic screen panels, and especially abrasion-resistant mining screens, includes a large rotary screen drum member on which an extruded, profiled cross-section screen surface-forming wire is helically wound at a pitch which will produce the desired screen slot width. Immediately adjacent the drum member is a rod-positioning mechanism from which a plurality of screen panel support rods are sequentially fed from a stack and welded to the wires on the drum surface in a direction parallel to the drum axis and transverse to the surface wires. The welding is done with a double-edged heater bar which is temporarily placed in contact with the rod and drum before the rod is forced against the drum. The screen drum is indexed after each support rod is attached to it by an angular amount sufficient to provide the desired spacing on the finished panel. After all the rods are attached to the wire-covered drum, the wires are severed along a line parallel to the drum axis and the now-finished panel is removed and used as is or preferably is cut to form several smaller panels.
REFERENCES:
patent: 2046458 (1936-07-01), Johnson
patent: 3031360 (1962-04-01), Currier
patent: 3391041 (1968-07-01), Moore
patent: 3964959 (1976-06-01), Adams
patent: 4032688 (1977-06-01), Pull
patent: 4295918 (1981-10-01), Benson et al.
patent: 4330349 (1982-05-01), Swift et al.
Benson Henry E.
Koehler Raymond A.
Ball Michael W.
Binstock Gary B.
Clark Barry L.
Hoatson Jr. James R.
Page II William H.
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