Removing Firestone gum-dipped tire from automatic curing modl in Firestone Factory and Exhibition Building, A Century in Progress

After all the component parts of the tire have been assembled - high-stretch Gum-Dipped cords - plies - beads - two Extra Gum-Dipped Cord Plies under the Tread - and the Tread-Rubber itself - the tire is placed in a gigantic curing mold. In this final important operation, the tire is forced by 43 tons pressure into teh Firestone non-skid tread pattern engraved in the steel mold and vulcanized by steam at 270 F.