ES255000A1 - Improvements in the manufacture of the rollable metallic doors (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in the manufacture of the rollable metallic doors (Machine-translation by Google Translate, not legally binding)
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Individual
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Individual
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Improvements in the manufacture of the corrugated doors, tending to avoid breakage and wear due to excessive angular sharpness in the trailing edges thereof, characterized by the implantation therein, and in their two margins or edges of winding, of a composite reinforcement by two longitudinal planes of equal width and thickness, which, forming the delimiting margin of the two vertical edges of the door, are distributed in such a way that, one of them indistinctly, retains its longitudinal flat layout as a ribbon, while , the other, retaining the old regular wave, characteristic of the curled doors, adheres parallel to the first one, in such a way that all the centers of arcs of its semicircles tangent to the flat ribbon, are riveted to it, becoming a single marginal element. (Machine-translation by Google Translate, not legally binding)
ES0255000A1960-01-151960-01-15Improvements in the manufacture of the rollable metallic doors (Machine-translation by Google Translate, not legally binding)
ExpiredES255000A1
(en)