Abstract:
The present invention relates to a thin-walled hollow cylinder (12) made from fibre-reinforced plastics material, the cylinder wall of which is composed of at least one layer (20; 32, 34; 32, 44, 46) having fibres with at least one oriented direction of the fibres, and the total wall thickness d lying in the range from 10 to 1000 mu m, and the ratio d /D being
Abstract:
An endless belt (10), in particular for use as a conveyor belt or drive belt, made from fibre-reinforced plastics comprises, according to the invention, at least one plastics layer (20) containing unidirectional carbon fibres (22), with a fibre content of at least 55 % by volume, which fibres (22) are oriented at an angle beta in the range of -25 DEG to +25 DEG with respect to the circumferential direction of the belt (10). The carbon fibres (22) provide a relatively high rigidity, chemical inertia and an abitity to withstand heat compared to metal and plastics belts according to the prior art.
Abstract:
A belting (10) reinforced with at least one fabric ply (16). The fabric ply (16) is a composite fabric (26). The fabric (26) has two woven layers (28, 30) and an intermediate third layer of straight warp yarns (34). The woven layers (28, 30) and straight warp yarns (34) are bound together by a plurality of binder yarns (38). Each layer (28, 30, 34) of the fabric (26) contributes substantially 25-40 % to the overall strength of the fabric (26). The composite fabric (26) may be used in a multi-ply belting (10) for heavy duty applications; wherein the fabric ply (26) is the center ply (16) and provides approximately 50 to 75 % of the overall belting strength. The fabric (26) may also be used as a single reinforcing ply for light duty application belting.
Abstract:
An improved conveyor belt including an overlay element (4) with a variable loop count over at least a portion of a transverse width of the belt (1), thereby minimizing the frictional contact between the overlay elements and minimizing the excess loop density on the side of the belt defining the inner radius of the turn.
Abstract:
A device for changing the running direction of a flat strip using low-friction means of deflection forming a triangle, characterized in that the means of deflection consists of a shaft which is pivotally mounted around an axis of rotation and provided with polydirectional roller segments.
Abstract:
The invention relates to a belt (1) for a conveyor. The inventive belt is made of rubber or a plastic similar to rubber and is provided with incorporated traction carriers (2) in the form of cables or cords that are made of steel. The inventive conveyor belt comprises, in relation to its total width (B), a centre part (A) and two side parts (A'). The invention is characterised in that the centre part (A) is interchangeable as a result of a joint (4) between both side parts (1'). Various embodiments of said joint (1) are described.
Abstract:
The present invention provides an open web (10) suitable for use in conveying bodies such as root crops and stones and clods, comprising at least two elongate belts (11) extending parallel to each other in spaced apart relation, and a plurality of rods (12) mounted in parallel spaced apart relation across said belts (11). Connecting portions (13) of said rods (12) are enclosed and embedded within the body of said belts (11), and tensile reinforcing means (20) extend longitudinally in the body of at least one of said belts (11) so as to provide a tensile load support therefor. According to this invention, a reinforcing link means (32, 34, 36, 38) is substantially embedded in at least one said belt (11) having tensile reinforcing means (20) embedded therein, and is formed and arranged so as to link at least one of said rod connecting poritons (13) to said tensile reinforcing means (20) whereby said tensile reinforcing means (20) and said at least one rod connecting portion (13) linked thereto, are restrained or retained against movement away from one another.
Abstract:
A conveyor belt which is constructed such that a reinforcing layer composed of a synthetic fiber cloth is embedded between an upper surface cover and a lower surface cover. The synthetic fiber cloth has a cutting extension of at least 25 % in a longitudinal direction of the belt and an extension of at most 1.5 % under a load which amounts to 10 % of a cutting load.
Abstract:
A conveyor belt (1) for conveying goods in solid or liquid state comprises a goods-carrying endless element (2), which is made of an elastic material, and a single belt-supporting wire (4), which is fixedly connected to one lateral edge (3) of the endless element. The endless element (2) has in cross section and in its unloaded state essentially the form of a hook for forming a goods-receiving space. It is sufficiently rigid in the transverse direction of the conveyor belt so as to essentially retain the hook shape when conveying goods in the goods-receiving space.
Abstract:
Method of manufacturing, assembling and fabricating a woven-wire belt (90) with unitary vertically-oriented lateral edge flattened-wire helically-wound surfaces along each lateral edge for dynamic-frictional drive of the belt by a rotatable substantially-cylindrical drive surface (95) in a helically-curved path (92), free of any mechanical drive connection while in the helical path. Lengthwise-directed tension control of the belt is exercised, while the belt is exterior to the helically-curved path, to achieve desired frictional drive contact within the drive surface. An exterior travel path (101) for the belt between exit from and return to the helically-curved path provides an endless belt travel array. Increasing belt movement from the helically-curved path to the exterior travel path (101) is used to increase lengthwise-extended tensile stress in the outer perimeter of the belt, while in the curved path; the increase in tensile stress in the outer perimeter increases constrictive force transferred to the inner perimeter of the belt so as to increase dynamic-frictional drive force along the inner perimeter of the belt which is in contact with the rotatable substantially-cylindrical drive surface.