Abstract: The endless band-like portion of a chain for the tires of heavy duty automotive vehicles is assembled of substantially square main links and U-shaped shackles. Each link has a base plate which engages the tread of the tire and an outer plate which engages the ground and is spaced apart from and defines with the base plate a compartment containing projections which extend from the base plate and/or outer plate and serve to engage and retain detent members on the legs of the shackles. Each link has at least one yoke disposed in a plane extending at right angles to the respective plates and engaging the web of a shackle whose legs are anchored in the compartment of a neighboring link. At least one leg of each shackle has a spur which cooperates with the web of an adjacent shackle to prevent the extraction of legs from the compartment wherein the legs are anchored as a result of engagement of their detent members with the projections of the respective link.

Abstract: In a system (10) for prefabricating strings of pocket facing strips and welts on a continuous basis, the assembly proceeds in parallel along opposite sides of a table (12). Along the facing strip fabrication portion (18) of the system (10), adhesive backed tape (28) from a supply reel is directed to a bonding station (84) where facing strips (108) are positioned and adhesively attached to the tape, after which the tape and attached facing strips are wound onto a takeup reel. In the welt fabrication portion (20) of the system (10), adhesive backed tape (48) from a supply reel is indexed along a feedpath to a bonding station (84') where sections of fabric (154) are positioned and adhesively secured to the tape. From there the tape (48) is indexed to an adhesive application station (172) where adhesive (174) is applied to the top surface of the tape, after which each fabric section (154) is folded over and adhesively secured to the tape at a folding/bonding station (230) prior to collection on a takeup reel.

Abstract: Disclosed is an electrophotographic photoreceptor which comprises, on an electroconductive support, a light sensitive layer containing a carrier generation material, a carrier transport material consisting of a carbazole derivative represented by the following general formula I: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and Ar are as defined in the specification.

Abstract: This application discloses a process for producing a non-woven fabric which comprises applying a crosslinkable bonding agent to a portion of the surface of a fiber assembly, applying heat and pressure to drive the crosslinkable bonding agent into the fiber assembly and to densify the fiber assembly and subsequently crosslink the bonding agent.

Abstract: In a system (300) for prefabricating strings of pocket welts on a continuous basis, the assembly proceeds along one side of a table (12). Adhesive backed fabric tape (48) from a supply reel (50 ) is indexed into a bonding station where sections of fabric (154) are positioned by photoelectric sensors (306, 308) and adhesively attached to the fabric tape. The fabric tape (48) is indexed to an adhesive application station (310) where an adhesive layer is bonded to the fabric tape and the backing layer separated at a backing separator (356). The fabric tape (48) then moves to a bonding/folding station (420) where the fabric pieces are folded and bonded to form the welts. Forward and rearward centering assemblies (424,426) employ front and rear positioning fingers (428, 430) to center the fabric tape in the folding/bonding station (420).

Abstract: A color decal is applied to the flat side of a relief image consisting of ceramic or like material in such a way that the color fields are adjacent to the flat side and are overlapped by a lacquer mask which contains frit and is separated from a paper carrier by a water-soluble film of glue or albumen. In order to apply the combined color and relief image to the surface of a ceramic or like object, the uneven side of the relief image is pressed against the surface of the object prior or subsequent to melting of the film so as to detach the carrier and expose the mask. In the next step, the images are treated by a squeegee or an analogous tool so as to partially deform the originally flat side of the relief image prior to sintering which entails evaporation of lacquer and conversion of frit into a glaze overlying the color fields which, in turn, overlie the uneven side of the relief image.

Abstract: A non-skid device made of side link sleeve and pin chain for the spoked wheels of wheelchairs, bicycles and the like. The chain includes a removable pin to enable assembly of the chain onto the wheel with a spoke of the wheel captured between the free ends of a pair of spaced side links thereof. A slotted plate having major surfaces of larger dimensions than the transverse dimensions of the chain is rigidly fixed to the chain with its slot extending from between the free ends of such pair of spaced side links to the adjacent edge of the plate to pass the spoke upon assembly and removal. One embodiment includes a resilient shoe member. Alternate removable pin structures are described.

Abstract: Method and apparatus for the front surface metallization and encapsulation of solar cells of the type comprising p and n semiconductor strata separated by a barrier junction, and front and rear conducting strata constituting electrical contacts, wherein the front conducting stratum is a novel metallic grid permitting transmission of solar radiation to the semiconductor strata. This metallic grid is in the form of a mesh of wires of sufficiently high tensile strength to be self-supporting while being drawn from spools or the like into contact with one or more components of the solar cell before completion of the cell's fabrication.The method is characterized in that the metallic grid, in the form of the mesh of wires, is encapsulated between a transparent cover plate and the exposed front surface of the semiconductor strata, the mesh forming an electrical contact with the front surface of the semiconductor strata simultaneously that the plate is electrostatically bonded thereto.

Abstract: This glass fiber-reinforced cement plate is comprised of both outside layers and an intermediate layer interposed therebetween, the former each comprising a glass fiber chopped strand-containing cement layer, the latter comprising a regulated set cement layer.

Abstract: An apparatus and method are provided for applying an envelope-type wrapping to tire bead rings. The apparatus and method are particularly useful when the wrapping material is to be applied directly over a lubricant coating on the bead ring. The apparatus includes a radially expansible drum, and an inflatable bladder that covers the drum and is interposed, along with the wrapping material, between the bead ring and the drum. According to the method of the invention, the bladder is inflated and rolled over in a desired sequence of steps to apply an envelope wrapping to the bead ring.

Abstract: A splicing head for an automatic zero-speed web splicing machine is disclosed in which the end of a new roll of web material can be prepared for splicing directly on resilient nip rollers which are used by the machine to perform the splicing operation. In particular, the splicing head includes a knife carriage through which the web material passes and which can be moved transversely to the web travel direction under control of a cam and lever arrangement to introduce a predetermined loop of slack into the web material.The action of the cam and lever mechanism also positions a serrated preparation blade mounted on cantilever arms in front of the nip rollers for squarely trimming the edge of the web material.

Abstract: A tape dispenser for adhesive tape comprising a housing (10) for rotatably supporting a tape roll (12) with the tape end (11) exiting the housing through an opening (22) and passing around a guide (21). To sever the tape, a cutting mechanism (25) is provided comprising rollers (29) supported on a rotatable shaft (27) with radially extending cutting members (26) positioned to contact the tape. When severing of the tape is desired, the rollers are brought into contact with the surface to which the tape is being applied to move the cutting members into contact with and at the same velocity as the tape for effective cutting.

Abstract: A seam welding machine for thermally seaming edges of coated fabric panels (P and P') in the field, said machine having a guiding head (16) with opposed laterally open overlapping slots (19 and 20) for guiding overlapping panel edge portions into a nip area behind the head (16) wherein the tip (25) of a hot air welding gun is directed, upper and lower pressure rolls (30 and 31) and upper and lower drive belts (34 and 41) following said nip area to press said overlapping edge portions into a seam (S).

Abstract: In pneumatic radial tires for running on rough ground, which are useful for applying to construction vehicles and provided with a tread reinforcing layer composed of a plurality of belts embedded in a crown portion of the tires, which surrounds a carcass composed of at least one cord layer arranged in radial plane of the tire, said tread reinforcing layer comprises a pair of main intersecting belts having different belt width in which cords are arranged so as to intersect with each other across an equator of the tire, and supplemental two belts arranged in the inside and outside of said pair of main intersecting belts respectively, in which cords have an elongation at breakage of at least 40% larger than that of the cords of the main intersecting belts, and an angle of the cords in the belt having the smaller width in the main intersecting belts with respect to the above described equator is 2.degree.-9.degree.

Abstract: Lightweight aircraft transparencies are shaped to a desired configuration by laying up a plurality of flat oversized plastic sheets in a desired sequence to form a flat assembly. Portions of the marginal edges of the flat assembly are supported on a female support ring having a non-planar supporting surface. The assembly is first shaped at a temperature below its deformation temperature to a preliminary shape where its marginal edge portions conform to the non-planar supporting surface of the female support ring. While the marginal edges of the preliminarily shaped assembly are maintained in conformity with the female support ring, the assembly is uniformly exposed in an enclosed autoclave to elevated pressures to minimize outgassing and to elevated temperatures above its deformation temperature. A male form having an outline smaller than the female support ring engages the central portion of the preliminarily shaped assembly to impress the desired final shape thereto, e.g., a compound configuration.

Abstract: An electrostatic record material comprising an electroconductive base sheet and a record layer formed on the base sheet and consisting essentially of an insulating resin, the record material being characterized in that the base sheet includes (i) an electroconductive layer comprising an ionic-conductive substance as its main electroconductive component, and (ii) an electroconductive layer comprising an electronic-conductive substance as its main electroconductive component. The electrostatic record material has excellent recording characteristics at usual humidity.

Abstract: A protective device for protecting the viewing area of a vision panel from encroachment by flowable cement compositions used to bond reinforcing members to the edge portions of the viewing panel. The protective device is preferably formed of a material non-adherent to both the vision panel surface and the cement composition, and may include vacuum biasing facilities and an edge seal to provide a fluid barrier to the passage of the flowable cement compositions.

Abstract: A heavy duty pneumatic tire having an improved durability is disclosed. This tire comprises a carcass of a bias structure composed of at least 12 rubberized laminated ply layers each containing organic fiber cords embedded therein, and divided into three inner, middle and outer ply groups by three bead cores, the cords of which are crossed with each other, as a reinforcement for a toroidal casing inclusive of a tread. In a region extending from an upper area of a bead portion of the casing within a range of 0.15 to 0.45 times a tire height as measured from a bead base of the tire, at least an average cord distance between adjacent ply layers at the middle and outer ply groups is made substantially wider than at the inner ply group and a cord distance between adjacent ply layers at the outer ply group is made substantially not more than at the middle ply group.

Abstract: In a method and apparatus for fusing together thermoplastic synthetic resin molded articles wherein opposing ends of the molded articles are melted and then fused together under pressure, gaps are formed between holding mechanisms holding respective molded articles and moving mechanisms for moving the molded articles away from a heating plate so as to apply a percussive force upon the holding mechanisms by the movement of the moving mechanisms.

Abstract: A pneumatic rubber tire, and method of preparation, characterized by having a covulcanized, removable, rubber inner liner adhering to the inner surface of the tire, said inner liner comprised of a sulphur cured rubber admixture of (A) butyl rubber and (B) an ethylene/propylene/nonconjugated diene terpolymer. The information further relates to such pneumatic rubber tire in which its exposed inner surface is provided by removal of said inner liner. The information has a particular utility in providing a pneumatic rubber tire with a clean, exposed, inner surface.