Abstract: An all-season tire tread having a circumferentially extending central rib together with a plurality of laterally spaced intermittent but circumferentially extending ribs on each side of the central rib with all of these ribs being separated by circumferentially extending grooves wherein a plurality of laterally continuous cleats are placed in circumferentially spaced relation about the tire and extend transversely outward of the central rib toward the closest respective tread edge wherein the circumferential cleat spacing is such that at least two laterally spaced cleats are in contact with the road surface during every footprint of the tire, with a plurality of lateral slots being in communication with the several grooves so as to promote water removal from the footprint area of the tire.

Abstract: A cleated chain wrapping is disclosed for use on mounted automotive wheels. The wrapping utilizes a plurality of chain pairs attached to the wheel and extending transversely across the tread surface. Cleats connect one chain in each pair to an adjacent chain in an adjacent pair.

Abstract: The present invention relates to an assembly-type tire protector comprising a plurality of annular members disposed substantially parallel to the tire surface and a plurality of link members disposed substantially perpendicular to the tire surface, said annular members being connected together by said link members to form a net, each of said link members comprising a body which is provided at both of its ends with opposing hook-like arm means for interconnecting said annular members, said opposing hook-like arm means defining an opening, a pin disposed upright in said body, said pin having a head portion and a base portion, said head portion substantially occupying said opening, said body of the link member containing a blind hole for receiving said base portion of the pin, and means disposed in said hole for expanding said base portion of the pin within said hole for locking said pin in position in said hole.

Abstract: A pneumatic tire having a cap/base structured tread and having an improved resistance against heat build-up and an improved wear resistance at the end of the use can be obtained by forming a tread base rubber of the tire with a vulcanizate of a rubber composition comprising specifically limited amounts of short fibers of syndiotactic-1,2-polybutadiene having a maximum diameter of not more than 10.mu. and an average diameter of less than 1.mu., carbon black, sulfur and natural or synthetic rubber.

Abstract: A pneumatic radial tire has a two-ply tread reinforcing breaker wth cords of filamentary material. The breaker plies are of unequal widths and arranged symmetrically with respect to the median circumferential or equatorial plane of the tire, the overall width of the breaker being substantially the width of the overlying tread. In the region of each shoulder of the tread, the edges of one ply are folded back on themselves forming superimposed two-ply regions and three-ply regions enclosing the edges of a narrow, non-folded ply. Surrounding each two-ply region of the folded ply is a cushion rubber which is softer than the tread or breaker skimcoat rubbers. The breaker construction substantially eliminates breaker edge separation, resulting in a more durable radial tire which can be recapped to provide further service.

Abstract: A method of making an adhesive bond, particularly suitable for underwater repairs consists of impregnating compliant foam material having an open cell structure with a thermosetting resinous adhesive, applying the foam to a substrate to be bonded or a puncture therein and applying pressure to the foam to immobilize the adhesive within the foam.

Abstract: The conductors of a cable core unit are powder filled by passing the core unit through a fluidized bed of powder with the conductors substantially closed together. The filled cable core unit can be wrapped with tape after exit from the fluidized bed. Cable cores may be filled also by passing them through a fluidized bed. The core units of the cores may be closed together or separated, but the conductors of each unit are closed together.

Abstract: A heavy duty pneumatic radial tire exhibiting less railway wear is disclosed. This tire has a tread pattern formed in a tread divided into a plurality of circumferential ribs by at least two zigzag grooves. Each of these zigzag grooves has a width, amplitude and pitch of 4.5 to 7.5%, 0.5 to 2.0% and 2.0 to 7.0%, respectively, based on a width of the tread.

Abstract: A radial carcass tire with a tread reinforcement is improved due to the fact that between the radial carcass reinforcement and the tread reinforcement there is arranged a limiting block composed of two superimposed crossed plies whose wires or cables form opposite angles with the longitudinal direction, each of which is other than zero and less than the smallest angle used in the tread reinforcement.

Abstract: A snow chain assembly having a pair of cross-chains is connected with a wheel assembly by a pair of connecting devices. One connecting device includes a lug mounted to the inside of the wheel and a cooperating socket plate that receives the lug and is secured thereby. The second connecting device includes a T-shaped radial slot and a T-shaped pin connected to the chain. When the pin is inserted in the slot and moved radially outward, the slot prevents disengagement of the pin. Spring biased retaining members may be attached to the wheel as locks to further prevent chain disengagement.

Abstract: Method of fabricating attenuation sandwich panels having a central cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a perforate facing sheet with an outer layer of porous fibrous material adhered to the other surface. The combined perforate sheet and porous fibrous material have a predetermined open surface area prior to attenuation panel fabrication. The perforation exposed surface of the combined perforate sheet and porous fibrous material is covered with a maskant material which covers the surface only. The porous fibrous surface is then saturated with a liquidous anti-wetting solution which coats substantially all of the fibers. The solution is allowed to dry and the maskant is then removed from the opposite surface. The components making up the panel are then assembled and bonded together to form the attenuation panel.

Abstract: A printing pattern support sheet made up of a film soluble in water and a pattern pre-printed on one surface of the film is prepared beforehand. The pattern is activated, immediately before being used for transfer printing, into a tacky or adherent condition ready for printing by applying a solvent thereto. The sheet with the pattern thus activated is fed onto the free surface of a mass of water, whereby the film supporting the pattern is dissolved in the water to leave the pattern floating on the surface of the water. An article on the surface of which the pattern is to be printed is then forced against the floating pattern into the water, whereby the pattern is transferred and adheres to the article. To apply the solvent to the pattern, a gravure printing plate cylinder can be used.

Abstract: Method and apparatus for positioning and securing a coupon within a transparent plastic bag in visible but tamper-proof manner. During manufacture of the bag a coupon is positioned against the inner surface of one side of the bag and the coupon is then overlaid with a cover strip which is heat sealed to the side of the bag. The bag is then completed and the coupon is held within the bag by the cover strip.

Abstract: A process and apparatus for making highly adhesive plastic top coatings, more particularly of polyurethane or thermoplastic polyester, on metallic substrates, particularly of braided or plaited wire layers, as pressure substrate, having an inner core of plastic, particularly a polymer of thermoplastic plastic, surrounded by the substrate, the plastic top coating being extruded in an extruder head onto the substrate, characterized in that the substrate having openings is prestressed then heated to approximately the temperature of the extrudate or the extruder head, so that there is generated in the inner core a radially directed prestress which forces at least part of the material thereof, while softening, through the openings in the substrate, and that thereafter a vacuum is created around the substrate or between the head and the flexible tube and that simultaneously with, or immediately after, the creation of the vacuum the top coating fusing intimately and/or bonding together with the material of the inner

Abstract: A vehicle tire having first areas of a higher degree of rigidity and second areas of a lower degree of rigidity, the first and second areas having different degrees of radially inward recession upon contact of the tire with the ground and being alternately arranged in the circumferential direction of the tire. Each of the second areas comprises a central projection and a plurality of projections surrounding the central projection in spaced relation and spaced from each other. Some of the projections which are located at the tread edges have side surfaces extending substantially parallel to a radial plane through the tire. The outermost projections disposed adjacent to the projections at the tread edges have side surfaces facing the ground and extending substantially perpendicularly relative to the side surfaces of the projections at the tread edges. With this arrangement, the tire can be driven with an increased degree of driving force on rough ground or terrain, such as sand and/or gravel.

Abstract: Prefabricated self-supporting panels having at least two outer layers and one inner layer provided with a foamed mixture, wherein the inner layer comprises unsaturated polyester resins, hollow microspheres of aluminum phyllosilicate having an average diameter of 150 microns and density of 0.7 kg/cu.dm., and a coupling agent of the organofunctional silane type.The process for the manufacture of these panels has also been described.

Abstract: The specification describes a method and an arrangement for attaching flexible sheets on a base by means of holding means at the corners. One corner of the sheet is held stationarily, a second corner of the sheet is guided in one direction and in this direction it is tautened in an outward direction while a third and a fourth corner of the sheet are urged outwards without guidance by forces, which are set substantially in a direction at 45.degree. to the edge of the sheet.

Abstract: A changeover system for a corrugator designed to halt the corrugator during the changeover to diminish paper loss. When the corrugator is halted, a traveling knife severs the combined webs adjacent the beginning of the steam table run. The slitter scorer and the cutoff are changed and the corrugator is restarted. The traveling knife which severs the combined webs may operate above the steam table or below the steam table; alternate forms may be used.

Abstract: A pneumatic tire for a heavy duty vehicle including a tread surface divided along circumferential directions by at least two tread zigzag grooves to form a plurality of circumferential zigzag ribs comprises stress releasing apertures formed at least in zones of the circumferential ribs which are within distances approximately 30% of widths of the circumferential ribs from the side of the ribs to mitigate stress concentrations in corners of the ribs extending in the tread grooves by reducing rigidities of the corners for preventing railway wear which would otherwise occur in the tire of this kind.

Abstract: The pneumatic tire incorporates a reinforcement belt comprising two superposed median plies of metallic material and two laterally disposed marginal plies of nonmetallic material. The marginal plies are folded to form superposed flaps, with the corresponding flaps of each marginal ply being substantially aligned.In all embodiments of the invention at least one pair of corresponding opposite, laterally disposed flaps align with one of the median plies. In at least one embodiment of the invention the second pair of opposite, laterally disposed flaps align with the second median ply. In other embodiments of the invention the second pair of opposite, laterally disposed flaps overlap the terminal ends of the second median ply. And in still further embodiments of the invention the second pair of opposite, laterally disposed flaps are positioned radially outward or radially inward of the second median ply.