Abstract: The present invention relates to a pneumatic tire blank adapted to be vulcanized in a vulcanizing device of the kind not employing a bellows arrangement, but having a clamping system which acts upon the interior of the bead.

Abstract: A device for the continuous production of a strand of foamed material comprising a vessel to which a foamable reactant material is continuously supplied and from which said material continuously issues over a weir whose height is adjustable. The material passing over said weir becomes supported on a foaming track whose constituent parts are adjustable as regards length and inclination to suit the foaming characteristics of said material. Said foaming track is adjustable also relative to said weir so as to be kept close thereto and is also adjustable relative to a curing track.

Abstract: An apparatus for cutting conveyed materials, preferably webs or strand-shaped articles formed of reinforced or non-reinforced rubber by means of a rotating, oscillating or stationary knife or cutter, wherein the apparatus comprises a cutter car or carriage and a drive motor with a crank. The cutter is mounted upon a balance or rocker constructed as a lever. The balance is actuatable by means of the crank and the cutter describes a closed kinematic path of travel.

Abstract: A tire blank for a vehicle tire provided at its bead region or surface with a pre-vulcanized ply or a ply formed of a harder rubber mixture than the rubber mixture generally employed at the bead region. Each bead region of the tire blank possesses one such ply at its inner surface, and both plies are arranged at a spacing from one another.

Abstract: An apparatus for the butt connection of plies formed of plastic deformable material and having cut surfaces, comprising at least one contact beam which can be displaced at an inclination against the plies, this contact beam having a play contact surface for applying an inclined directed force to the plies which are to be butt connected.

Abstract: A method of fabricating molded articles composed of elastomeric material having embedded therein essentially oriented fibers, comprising the steps of fabricating a molded article with oriented fibers therein, positioning the molded article within a mold having two portions, a first mold portion defining the shape of the final molded article and a second mold portion arranged separately of said first mold portion and in communication therewith, said molded article being positioned partly in said first mold portion and partly in said second mold portion, subjecting the part of the molded article positioned in said second mold portion to a directed flow operation into said first mold portion and reorienting by said directed flow operation the fibers subjected to flow into a second fiber orientation direction differing from the fiber orientation direction of the part of said molded article positioned in said first mold portion.

Abstract: A foam body, for example in the form of a mat, strip, square or the like, consisting of pieces of polyurethane foam held together by a bonding agent, which may be foamed, e.g. porous polyurethane, characterized in that plant seeds are contained in the foam body.

Abstract: The present invention relates to reusable hollow formwork elements of elastic material which may be used for the concreting of pipelines, and which by filling with a gaseous or liquid medium, can be given compressive resistance. The invention also relates to a method of operating such formwork elements.

Abstract: An apparatus for the bellowless vulcanization of tire blanks, wherein the tire beads are pressed by a press or contact mechanism against the base region of the mold halves. The invention contemplates removing at least for a period of time the press mechanism from the tire beads before or during vulcanization.

Abstract: A method of, and apparatus for, the butt connection of plies formed of plastic deformable material, especially rubberized steel cord plies, wherein the cut surfaces of the plies to be connected are beveled or tapered parallel to one another, positioned so as to be mutually elevationally offset with respect to one another, and then joined together.