Electric heating – Metal heating – Wire – rod – or bar bonding
Patent
1995-01-25
1998-02-17
Gorski, Joseph M.
Electric heating
Metal heating
Wire, rod, or bar bonding
29429, B23K 1106
Patent
active
057193665
ABSTRACT:
A novel method and apparatus is disclosed for the production of single plane ladder-type rack strip material in which wire cross bar elements are Tee-welded to the inside surface portions of opposed, parallel side elements formed of similar wire material. The welding procedure involves contacting the cross bar element centrally with an electrode of a first polarity and contacting the wire side elements on opposite sides with electrodes of a second polarity. During the welding operation, current flows substantially equally from the first electrode in opposite directions through the opposite weld interfaces to the opposed second electrodes. By observing physical symmetry in the electrical supply at opposite sides, equalization of current flow is optimized so that the emerging rack strip product is flat and straight, suitable for commercial marketing. By forming the rack strip elements in a single plane, the elements can be formed into a wide variety of modular components for the assembly of a variety of useful rack and shelving structures. Novel forms of mounting and connecting blocks are also disclosed.
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patent: 5143228 (1992-09-01), Arnold
Nagel Thomas O.
Thalenfeld David R.
Gorski Joseph M.
Trion Industries Inc.
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