Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent
1975-09-12
1976-08-17
Weidenfeld, Gil
Metal working
Plural diverse manufacturing apparatus including means for...
Binding or covering and cutting
29564, 156461, 156535, 156578, B23P 2300
Patent
active
039745520
ABSTRACT:
A three-dimensional sign character is formed with improved circumscribing opaque metal sheet strip siding. The sign, typically having an interior light source, includes a translucent plastic face circumscribed by opaque sheet metal strip siding. The sheet metal strip siding includes a plastic strip bonded directly by gluing to a freshly abraded band on the sheet metal strip. Convolute folds are formed on either side of the sheet metal strip. One convolute fold is formed adjacent an edge of the plastic strip so as to extend angularly above and abut the plastic stripping to function as a light stop. The secured plastic strip serves as the bonding point to the translucent face of the sign. The sheet metal strip siding is particularly adaptable to continuous formation on a specialized rolling mill including the steps of preheating the strip, abrading a band on the strip, gluing over the abraded band, placing a plastic strip over the glue covered abraded band, working opposite edges of the strip with a rolling mill to produce convolute folds, registering the plastic strip to the convolute folds, and heating the strip to cure and bond the registered plastic strip to the abraded band on the sheet metal strip.
REFERENCES:
patent: 3414305 (1968-12-01), Minogue
patent: 3476631 (1969-11-01), Huffman
patent: 3589975 (1971-06-01), Andrews et al.
Minogue Robert W.
Troyer Lloyd E.
LET-R-EDGE Of Canada Ltd.
Weidenfeld Gil
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