Abstract:
A fabric-free belt has an oriented polyamide layer (1) as a tension layer. A rubber layer (2, 3) is arranged in the form of a laminate on both sides of the oriented polyamide layer (1). The rubber layers (2, 3) contain at least 1 part by weight, based on 100 parts by weight of rubber, of resorcinol, phenol, cresols or mixtures thereof and adhere directly to the oriented polyamide layer (1). An advantage of the invention is that no adhesion promoter coating has to be applied to the polyamide layer (1) or to the rubber layers (2, 3) for the production of the laminate.
Abstract:
A holding system for the backup rollers of a belt conveyor. The system comprises a holding bar secured to the backup roller and a backup lever secured via a joint to the center of the holding bar. The backup lever is pivotable against the driving drum of the conveyor. The backup lever comprises a power arm arranged below a load arm. The power arm is engaged by a draw spindle for adjusting the force of the contract pressure of the backup roller. The roller is comprised of a plurality of roller segments with spacer rings between the segments. The system eliminates the need for adjusting the holder during the operation and allows the rollers to be removed without dismantling the system.
Abstract:
A conveyor chain having a hollow roller housing (15), an annular series of cylindrical rollers (14A and 14B) therein providing rotation of the hollow roller on an internal bushing (13). Alternate cylindrical rollers (14A) have a pair of cylindrical roller separating retaining rings (17) rotatably fitted over both ends. Intermediate cylindrical rollers (14B) have no cylindrical roller separating retaining rings (17). The retaining rings (17) on the alternate rollers (14A) engage the intermediate cylindrical rollers (14B). The cylindrical bearing surfaces (13A, 15A) are sandwiched between the retaining rings at each end of the rollers (14A) and project toward the outer circumferential surfaces of the cylindrical rollers (14A and 14B). The roller (15) and the bushing (13) have recessed surfaces (15A and 13A) which are spaced from the outer and inner circumferential surfaces of the retaining rings (17).
Abstract:
An improved bucket conveyor chain that uses a series of .[.metal plate type links.]. .Iadd.plates .Iaddend.3 connected together at adjacent ends by a pair of bars 5. The bars 5 also hold adjacent plates up off the wheel's 1 driving surface, they also provide a surface for attaching buckets 17 and guide bars 19.
Abstract:
A conveyor belt with rods and connective links that engage one another so as to resist lateral deflection and rotational movement about the rods during conveyor operation. The rods have a large diameter through most of their length, and a smaller diameter at their ends where they are attached to the connective links. The transition between the large diameter and the smaller diameter is a chamfered section which is captured within an aperture of the links to constrain the links from lateral movement along the rod. The links are further constrained on the rods by forming an upset or buttonhead at the ends of the rod and resistance welding the rod to the link apertures. The additional fixation steps used in conventional belt manufacture are thus eliminated. By affixing the links and rods together in the manner disclosed, repeated movements of the link legs relative to the rods are eliminated thereby significantly reducing the chances of fatigue failure of the links.
Abstract:
A conveyor belt having a drive mechanism and specifically rod and side link connections in the belt. The belt includes a plurality of pivotal link members by which the belt can collapse or extend along a side edge to follow a curved path. One end of each of the link members along the edge of the belt that engages the drive mechanism is formed into a hook-shape. The belt also includes a plurality of transverse rod members. At least one end of each rod is headless and is captured within the hook-shaped end of a link member. This results in the hook-shaped end of the link member engaging the drive mechanism, with the rod end being secured to the link member within the hook-shaped end of the link.
Abstract:
Apparatus and method for refurbishing damaged belting. The apparatus includes a frame with a conveyor system. A mechanism is attached to the frame for removing a desired amount of the belting surface as the belting moves relative to the frame on the conveyor system.
Abstract:
Hose belt conveyor (1), comprising an elongated belt 2) which can be folded to a closed hose. At the edges it is provided with thickened parts (3) which are placed resting against each other during the formation of the hose. These thickened parts bound a V-shaped part which widens in the direction away from the hose which has been formed by the belt (2). The V-shaped part is placed between two drive rollers (12). By selecting the angle of the V-shaped part between 30 and 90.degree., it has been found that it is possible to provide for the hose belt conveyor (1) to be driven like a V-belt. The invention also relates to a drive unit (7) for the above-described hose belt conveyor.
Abstract:
A corner conveyor unit (6), for use in transferring movement from a conveyor operating in the direction A to another conveyor operating in the direction B, includes a plurality of frusto conical rollers (10) mounted for rotation between inner and outer curved walls (12, 14). A device is provided to urge the outermost frusto conical rollers in a separative direction, maintaining tension on the conveyor belt 16. A device is provided to restrain the conveyor belt (16) against movement in a direction C inwardly of the corner unit, the device including a plurality of roller assemblies (18) disposed around the outer edge region of the belt (16), each roller assembly (18) having a pair of roller members (20) engaged with upper and lower trackways (22, 24). Each trackway has an upper part and a lower part b, against which the upper and lower roller member (20) of each pair engage. To facilitate belt changing, the trackway parts (22a, 24a) may be separated from the trackway parts (22b, 24b), allowing the roller assemblies (18) to pass between the trackway parts, allowing the conveyor belt to be drawn inwardly of the corner unit.