Abstract: A tread structure for pneumatic vehicle tires, according to which the tread is provided with a centrally arranged zigzag groove extending in the circumferential direction of the tire. The tread also has elevations or raised sections on both sides of the circumferential groove. The elevations follow one another in the circumferential direction of the tire, and are separated from one another by other grooves, including grooves which start from the zigzag central circumferential groove and extend straight towards both tire shoulders. Of these straight grooves, those which follow one another in the circumferential direction of the tire are slanted in opposite directions with regard to the circumferential or transverse direction of the tire.

Abstract: A slightly bulged outwardly arched pneumatic vehicle tire having a tread which is narrow in relation to the width of the tire. The tire also has a belt which is pull-resistant in the circumferential direction of the tire and effects the lateral stabilization of the tire. Portions of the belt are arranged on both sides of and adjacent to the tread in sections of the tire sidewalls which are essentially cylindrical or slightly conical. In addition, the reinforcing inserts form the belt. Those reinforcing inserts located in the tire sidewalls form a considerably smaller angle with the circumferential direction of the tire than do those reinforcing inserts located below the tread.

Abstract: A vehicle wheel having a detachable rim ring with a rim flange. The fastening means for the rim ring may be covered by a detachable plate which also seals off an air duct which leads to the hollow interior of the tire.

Abstract: A stackable loading platform having a bottom with a plurality of feet. A plurality of supports are respectively located at the feet and are detachably arranged therein. A plurality of side walls are arranged between and detachably engage the respective adjacent supports. The side walls, in the corner regions of their upper edges, are positively connected to the supports. The supports are selectively movable in the longitudinal direction thereof away from the bottom for removing the supports from the platform. In the region of the feet, rigid stops are associated with the platform for securing the lower portion of the side walls against inward movements.

Abstract: An elastic pipe connector comprising a bellows body made of rubber or rubber-like synthetic material and having angled-off end beads and reinforcing inserts which extend between the end beads and which comprise thread-like strength carriers, preferably of metal. The reinforcing inserts are angled off at the end of the end beads and with a plurality of directional changes are embedded in the end beads.

Abstract: Pneumatic vehicle tires having a carcass with a tread strip centrally arranged thereon. The carcass freely spans the wheel rim and is only slightly outwardly curved when in a non-depressed condition. At its rim area the carcass is deflected by means of its arc of curvature towards the tire beads which are reinforced with pull-resistant cores. The carcass has a thickness which continuously decreases from its maximum thickness in the region of the tire bead to a fraction thereof at the edges of the tread strip. The carcass is provided with two fabric plies which are looped around the cores. Decreasing in distance between each other, the two plies extend beneath the tread strips. In the arc of curvature the two plies surround an elastic, deformable, incompressible intermediate layer which has an approximately wedge-shaped cross section.

Abstract: A vehicle wheel equipped with an annular solid rubber tire having its marginal portions provided with beads resting in and held by lateral wheel flanges. The rubber tire extends around an annular channel into which the tire can partially deflect. The wheel flanges are spreadable away from each other by spring tension.

Abstract: A sleeve of plastomeric or elastomeric material with inner and outer peripheral wall sections which are interconnected by connecting wall sections decreasing in thickness from said inner peripheral wall sections toward said outer peripheral wall sections. Each of the outer peripheral wall sections is provided with an intermediate constriction dividing the respective outer peripheral wall section into two foldable sections.

Abstract: A pneumatic tire for motor vehicles having a circumferential tread surface with molded-in grooves extending in a direction transverse to the circumferential direction of the tire, in which the grooves extend from a central circumferential tread surface section of the tire toward both lateral tire sides while following the curvature of a parabola of a second order.

Abstract: A belt for a belted tire with an inner continuous layer and with an outer layer divided into two marginal sections and an intermediate section. The strength carriers of the inner belt layer extend over the width thereof in one direction and at a first angle with regard to the circumferential direction of the belt. The strength carriers of the intermediate section of the outer layer extend only over the width of the intermediate section and at the same angle as the first mentioned angle but in an opposite direction to the strength members of the inner belt layer. The strength members of the marginal sections extending in the same direction as the strength members of the intermediate section but at a smaller angle with regard the circumferential direction of the belt than the angle at which the strength members of the outer belt layer extend.

Abstract: A bead core for pneumatic tires which is composed of wires, cables, cords or similar thread-shaped strength carriers wound to form a plurality of windings. These windings are formed by successive coils or spiral sections of a continuous strength carrier. The bead core furthermore includes one or more additional windings respectively formed by rings closed in themselves.

Abstract: A loading plate structure adapted together with other loading plate structures of the same design to form a stack, which includes a preferably rectangular or square-shaped normally horizontal loading plate which at each of its corner sections has connected thereto a supporting post of square, rectangular or any other polygonal cross section. Each post has preferably detachably connected to its top and bottom section the free ends of the two arms of a U-shaped yoke. Each yoke projects from the post to which it is connected in the direction to the adjacent yoke, and the transverse section of each U-shaped yoke which interconnects the pertaining two arms is spaced from the pertaining post by a distance that is less than half the distance between the two adjacent posts between which the respective U-shaped yokes project.

Abstract: A bead core for pneumatic tires which is composed of a plurality of annular or coil shaped sections of wires, cables or cords. These sections which are of substantially the same size and dimensions interlock each other by each section passing at least once through another section.

Abstract: A vehicle wheel having a pneumatic tire which is only slightly outwardly arched or crowned and which has a carcass and a centrally located tread strip. The tread strip has sharply defined edges and has a length approximately one third the width of the freely extended axial length of the tire body. The tire body is deflected sectionwise inwardly under a rated load in such a way that the carcass changes from a convex configuration to a concave one, in the process of which the carcass layers radially inwardly of the contact surface edges experience an angle variation of from 10.degree. to 30.degree..

Abstract: A connection for the ends of the supporting straps of an endless bar belt conveyor, especially for agricultural machines, the bars of which are connected to the supporting straps by connecting members such as rivets and screws. Within the region of the two ends of each supporting strap there is provided a connecting member which engages the inner side of the respective adjacent supporting strap and is connected to the supporting strap by means of connecting elements such as rivets or preferably screws. The connecting member comprises a pull-resistant flexible layer which extends in the longitudinal direction of the supporting strap and has a thickness less than the thickness of the supporting straps.

Abstract: A pneumatic vehicle tire with a carcass the layers of which are anchored at the beads by being looped around the bead cores. On each of the bead cores there is arranged a rubber profile of approximately triangular cross section laterally engaging a carcass layer, while laterally outwardly of and adjacent to each rubber profile a rubber plate is provided which is considerably harder than the respective adjacent rubber profile and the rim portions of which taper to a thin edge. Each of the rubber plates engages on opposite sides the respective adjacent carcass layers and extends in the direction toward the respective adjacent tire shoulder to a height of up to one-third or even one-half of the respective adjacent tire side wall.

Abstract: A roller for the pressure treatment of webs of goods with a rigid roller core and a hose-shaped roller mantle of rubber or rubber-like material with reinforcing inserts, in which the reinforcing inserts include a monofile coil of a strong substantially non-extensible material e.g. a metallic material or a highly strong synthetic material and extending over the length of said roller mantle. The reinforcing inserts furthermore include two layers of rectilinear thread-shaped strength carriers which extend substantially in the axial direction of the roller in mutually spaced parallel arrangement while being distributed in the circumferential direction of the roller and extending over the length thereof. These two layers of rectilinear strength carriers are respectively located on radially opposite sides of the monofile wire coil.

Abstract: A vulcanizing mold for pneumatic vehicle tires with upper and lower mold segments distributed over the circumference of the mold, for molding the tread surface of the respective tire to be molded, while the mold segments cooperate with rings for selectively moving the segments toward the tire tread surface to be molded. The mold furthermore comprises rings which mold the tire side walls and are provided with seating surfaces for receiving and guiding the tire beads. The rings for moving the segments toward the circumferential tire surface consist of two rigid pressure rings which are movably guided in axial direction of the tire to be molded and by means of pressure exerted from the outside of the mold upon the pressure rings are movable toward each other for moving the segment sections together and toward the circumferential area of the tire.

Abstract: A braking device for sleds, according to which rollers are used as braking elements which by means of an actuating element are moved from a non-braking position into a braking position while being pressed against the surface of the sliding path for the sled. According to a preferred design of the invention, pairs of rollers are employed with the rollers of each pair having different diameters.

Abstract: A device for transferring a tire carcass having a substantially cylindrical outer surface and provided with core rings, from a tire building-up station to a forming station. This transfer is effected by means of an annular holder composed of segments and provided with suction cups adapted to be placed onto the outer substantially cylindrical surface of the carcass to be transferred for supporting the carcass. The holder is variable in diameter and is supported by a carrier which is movable from the tire building-up station to the forming station. The holder has curved segmental supporting elements for supporting at least one end portion of a carcass engaged and carried by the suction cups which are selectively connectable to a vacuum creating device.