Method of making a prestressed reinforced corrugated sheet

Abstract

Abstract 1. A METHOD FOR THE PRODUCTION OF SHAPED REINFORCED RESINOUS PRODUCTS COMPRISING THE STEPS OF: (1) DEPOSITING A MASS OF SHAPABLE AND SETTABLE OR CURABLE SUBSTANCE UPON A MOLD SURFACE, SAID MOLD SURFACE HAVING A PLURALITY OF BULGING PORTIONS EACH PORTION BEING SEPARATED FROM AT LEAST ONE OTHER SAID PORTION BY A DEPRESSED AREA, (2) POSITIONING A REINFORCING FORAMINOUS FABRIC OF SUCH STRENGTH THAT IT IS CAPABLE OF MAINTAINING ITS INTEGRITY UNDER SUBSTANTIAL STRETCHING WITHOUT DISRUPTION AND HOLDING SAID FABRIC UNDER TENSION OVER THE SURFACE OF SAID MASS, (3) EMBEDDING SAID FORAMINOUS FABRIC IN SAID MASS BY APPLICATION OF PRESSURE DIRECTLY TO SAID FABRIC ONLY IN PLURAL RESTRICTED AREAS THEREOF, SAID RESTRICTED AREAS CORRESPONDING TO SAID DEPRESSED AREAS, WHILE CONTINUING TO MAINTAIN SAID FABRIC UNDER TENSION AND EFFECTING A STRETCHING OF SAID FABRIC TO CONFORM TO THE CONTOUR OF SAID BULGING MOLD SURFACE, (4) CURING THE SAID SUBSTANCE WHILE SAID MATERIAL IS SO STRETCHED AND EMBEDDED, THEREBY PRODUCING A PRESTRESSED PRODUCT, (5) SAID RESTRICTED AREAS BEING GENERALLY DEFINED BY A SERIES OF POINTS CORRESPONDING TO POINTS ON THE SAID MOLD, FROM WHICH LATTER POINTS, LINES DEFINITIVE OF SAID BULGING SURFACE MAY BE CONSIDERED AS ORGINATING.

Inventors

• 👤 R Drake

Bibliographic Details