Abstract: The present invention relates to a fuse for a wheel equipped with a pneumatic tire.The fuse is constituted in the form of a screw (1) whereof the head (7) is traversed by an evacuation duct (3) receiving a check valve (8) obturating this duct (3); the fuse being characterized by the fact that it comprises a retainer (17), a part of which is embedded in the head, and another part cooperates with the check valve to hold it.

Abstract: The periphery of the portion of the valve body of a tire valve which is located on the outside of the wheel rim is composed of elements which are elastic in transverse direction and rigid in longitudinal direction. Tightness is assured by a sealing joint. The valve body may be of a single piece or of two pieces.

Abstract: An improved tire protection chain (14) is disclosed which comprises a plurality of flat metal rings (16) disposed in a staggered pattern over the tread surface of the tire. Means (18) are provided for joining the rings into a flexible mesh, this means comprising at least one flat, oblong chain link (20, 22) oriented so that one of its long sides (30) faces toward the tire surface and the other of its long sides (28) faces away from the tire surface. Attached to the side of the chain link which faces away from the tire surface is at least one traction stud (36, 38, 40). The central opening of the oblong chain link is configured so that rotation of the oblong chain link is limited relative to adjacent links or rings.

Abstract: An improved traction device for assisting vehicles when stuck in sand, snow, bog, or the like, incorporates a rigid plate having opposed upper and lower gripping ribs and an appended chain structure having transverse angle iron pieces spaced lengthwise thereof.

Abstract: An off road vehicle of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced.The vehicle also incorporates suspensions which effectively dampen oscillation of the bag rollers to facilitate and to permit high speed operations of the vehicle across rough terrain.A top drive roller is associated with a bag roller in certain embodiments of the off road vehicle in ways which minimize bag wear.Specific bag constructions are provided for improved operation of the off road vehicle for on-highway use.The vehicle includes two frame sections which are connected to permit frame (yaw) steering and swiveling (roll) between the two sections while preventing a bending between the frame sections (pitch) to thereby provide a strong back mode of operation. When equipped with 4 bags on each frame, the vehicle permits increased speed over rough terrain.

Abstract: A low pressure tire, which is effectively used with a relatively small load in all terrain vehicles suited to be driven on various uneven grounds such as bad roads, tillage and sandy soil, comprising crown and side portions which consist of a carcass ply formed of synthetic fibre monofilaments formed in a reed-screen pattern and a rubber layer.

Abstract: An anti-skid tire chain comprising a pair of parallel side chains, a series of traction rings extending medially between the side chains, and a network of connector chains interconnecting the traction rings with the side chains and with one another is characterized in that the connector chains are interconnected in threes by triradial connector plates. Each triradial connector plate consists of three plate elements welded together, each plate element providing a pair of opposite end portions, subtending an angle of 120.degree. to one another and an arcuate mid-portion defining a convex cylindrical surface, the plate elements being mutually welded together at the convex surfaces thereby defining a symmetrical triradial configuration providing three radially extending pairs of parallel arms, each pair of arms defining a clevis for receiving an end link of a respective connector chain, and including a removable clevis pin for retaining the end link.

Abstract: A method for etching a metallic sheet and apparatus thereof with a first step of forming an anticorrosive pattern defining apertures on one surface of the metallic sheet and an anticorrosive pattern defining smaller apertures than the apertures on the other surface of the sheet; a second step of lightly etching the other surface for removing an oxide film on the surface of the metal to expose the surface of the metal; a third step of spraying an etching solution on the one surface for etching the one surface to a predetermined depth; and a fourth step of simultaneously spraying an etching solution on both surfaces of the metallic sheet for forming apertures in the metallic sheet. The invention is preferably applied for forming apertures by etching in a metallic sheet to provide a shadow mask of a color CRT.

Abstract: A rigid valve stem cover for flexible tubeless tire type valve stems. The cover has a frustro conical shape which threadably engages the valve stem at its upper end while the bottom edge of the cover comes in contact with the stem and wheel rim area surrounding the stem and provides substantial rigidity to the stem.

Abstract: Device and method utilizing a fixed assembly attachable to a vehicle wheel back support plate, and a journaled, rotatable assembly carrying a track which may be deployed to engage and rotate with the wheel, or retracted for stable storage. The track is supported by leading and trailing arms carried on the rotatable assembly of the device, which arms in turn are movable concentrically to the device journal to expand the track around the tire and move inwardly upon completion of the track expansion to encircle the tire. Tracks utilizing linkages and rigid traction bars, or resilient members may be employed. Deployment and retraction power may be manual or provided by springs preloadable utilizing the rotational energy of the wheel, by fluid means, i.e. hydraulic vacuum and pneumatic, or by electric power, with the deployment and retraction being powered by a common means, or with the two movements or portions thereof being powered by a combination of power means.

Abstract: An apparatus for automatically filling a vehicle tire bead-core with an elastomeric filler having one or more drums, for encasing the bead-core in which the filler is applied when the drum rotates around its own axis.The apparatus is provided with means suitable for stretching the filler when it is pulled into rotation with the bead-core on the drum to stiffen the filler and resist bending, and therefore maintain the filler substantially in the drum midline.The apparatus is further provided with means for discharging the bead-core/filler assembly in a plane unchanged with respect to that determined by the stretching means in order to permit the collection of the various filler/bead-core assemblies one after the other.

Abstract: Chemical milling of cast superalloys having high tungsten contents is advantageously accomplished with an etchant which consists by volume percent of 40-60 concentrated HNO.sub.3, 0.6-0.8 concentrated HF, 30-70 H.sub.2 O, with which is included at least 0.008 moles/liter CuSO.sub.4 and 0.0016-0.025 moles/liter FeCl.sub.3. Preferably the molar ratio of CuSO.sub.4 to FeCl.sub.3 is 2:1 and etching is accomplished in the range 50.degree.-80.degree. C.

Abstract: A method for metallurgically bonding a ceramic element to a metal member to produce a seal for electrochemical cells whereby the ceramic element is first plated with a metal that can be chemically removed prior to or subsequent to the bonding of the components together using a fusible metal.

Abstract: In a tire protection chain with plate-shaped components (1) which cover the tread of the tire to be protected, and with at least one chain network (4) located on one side of the tire, the chain network is provided with overload safeguards (7, 8, 9, 14, 18, 22) which form a parting position when the chain network is subjected to extremely high loadings. The overload safeguards are here designed in such a way that no parts can be released and thrown off when the chain network is overloaded.

Abstract: A detachable, resilient shield is maintained in contact with the sidewalls of a tire for off-the-road vehicles to protect this critical area of the tire from damage due to contact with external objects such as rocks. The tire includes a removable tread or a lug traction band. The shield is manufactured separately from the tire. The shield includes criss-crossed reinforcements which extend at oppositely directed angles greater than zero but less than ninety degrees relative to the circumferential direction of the tire.

Abstract: The track belt assembly of the present invention comprises a plurality of shoes spaced about the periphery of a load-supporting structure. A reinforcing belt structure is disposed on the side of the shoe opposite the ground-engaging side thereof. Each shoe is secured at its lateral ends to the belt reinforcing structure by two separate anchor plates disposed on the side of the belt opposite that which is adjacent the shoes.

Abstract: The present invention relates to an anti-skid device for improving the traction of a wheel on an automotive vehicle on the ground. The invention relates also to a method of producing such anti-skid devices. The anti-skid device comprises at least one chain intended to run along the wall(s) of the tire and a plurality of chains intended to surround the entire tread face of the tire. The various chains are interconnected. The interconnection is provided by welding a certain number of neighboring links of two adjacent chain lengths together. The chain length may preferably be equipped with additional gripping elements welded on at least some of the links.

Abstract: A pneumatic radial tire is disclosed. This tire is reinforced with steel cords, each of which has such a flat or elliptic section that two or three strands, each strand being produced by twisting plural filaments, are arranged in parallel with each other so as to make the twisting directions of the adjoining strands opposite to each other to form a core and plural filaments are twisted around the core and wrapped with a spiral filament.

Abstract: A tire pump that is mounted on the rim, inside the tire. The pump is operated by centrifugal force when the tire rolls along the highway; it is designed to keep the air pressure within the tire at a constant, pre-set, level.

Abstract: An improved wheel-mounted traction device comprising a plurality of molded plastic traction elements held in place about the periphery of a wheel or tire by belts or cables that engage the individual traction elements. Metal studs, integral plastic projections and suction cavities are disclosed as additional means for aiding in achieving improved traction results.