Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: In accordance with an example embodiment, a continuous belt may include an outer surface having a first edge spaced apart from a second edge defining a belt width, and a first wear indication positioned on the outer surface near the first edge and having a first width, the first width is less than the belt width, and the first width represents the amount of allowable wear of the continuous belt.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

Abstract: Wing pulleys that engage a conveyor belt during conveying operations are described. The wing pulley includes a central reinforcing disk that strengthens and stabilizes the pulley.

Abstract: A drive roller for flat belts is provided in various embodiments wherein the roller has improved characteristics for maintaining traction of belts, such as lagging applied to the roller.

Abstract: A ventilating system, especially for a motor vehicle air conditioning system, comprises: a wall (4) for mounting an axial fan (2), the latter being equipped with a ring-shaped casing (6), with an axis (X), defined externally by a cylindrical wall (7); an electric motor (11) supported by a plurality of radial spokes (10) connected to the ring-shaped casing (6) and having an impeller (12) at the end of its output shaft; a power cable (14) connected at one end to the motor (11) and connectable at the other end to an electrical power source through a connector (14a). The axial fan (2) is mounted on the wall (4), which delimits a space (5) for containing the air conditioning system, at an air opening (3), in such a way that the impeller (12) faces the inside of the space (5) and the motor (11) faces the outside. The ring-shaped casing (6) comprises means (19) for fastening the cable (14) to its cylindrical outside surface (18) and defining a passage (25) for the cable (14) through the mounting wall (4).

Abstract: In an elevator element for driving or reversing an elevator suspension device in an elevator system, that interacts with an elevator suspension device, the arithmetic mean of the roughness value of the contact surface measured in the circumferential direction of the elevator element, and the mean roughness value of the contact surface measured in the axial direction of the elevator element, are different. The arithmetic mean roughness value of the contact surface measured in the circumferential direction of the elevator element is less than 1 micrometer.

Abstract: A composite automotive pulley wheel and pump comprises a pulley wheel (2) and a pump (22). The pump comprises an impeller (20) carried on a rotary shaft (6), an inlet region (24) and an outlet region (26). The pulley is mounted on the shaft (6) and comprises a radially outwardly extending support (4) connected to an annular axially extending flange (10, 12), the outer surface of which is adapted to be engaged by a pulley belt. The flange (4) defines a cooling fluid passage (14) within it which extends in the circumferential direction and communicates at two circumferentially spaced positions with an inlet passage (16) and an outlet passage (18), respectively. The inlet and outlet passages (16, 18) extend through the support (4) and the shaft (6) and communicate with the outlet region (26) and the inlet region (24), respectively.

Abstract: A disk drive unit carrier (1) is adapted to carry a single disk drive unit (2). The carrier (1) includes a temperature control device (4) for controlling the temperature of the disk drive unit (2). The temperature control device (4) is preferably in the form of an air flow control device (5,6) for controlling the flow of air across the disk drive unit (2) appropriately according to the required temperature for the disk drive unit (2).

Abstract: In an elevator sheave for a flat belt, hard, thin surface plating can be applied to enhance durability while maintaining traction.

Abstract: A lagging system for conveyor belt pulleys is provided that allows for significant flexibility in attaching lagging members to the face of the pulleys while also providing improved distribution of the lagging material on the pulley face, and doing this while avoiding the creation of unduly long and circumferentially wide gaps between adjacent lagging members attached on the pulley. The lagging system can include lagging strips having non-linear leading/trailing edges thereof to allow adjacent strips to be attached without the undesired gaps formed therebetween. Preferably, the strips have projecting portions with fitment spaces defined therebetween with the projecting portions being offset on either side of the strip axis so that portions from one strip can be interfit in fitment spaces of an adjacent strip with lagging material or tiles thereon overlapping the lagging material or tiles on the projecting portions of the adjacent strip in the circumferential direction.

Abstract: A pulley has a wear-resistant dispersion coating on its running surface. This pulley is produced by an electrodeposition coating process without an external current (chemical deposition), and followed by a heat-treatment.

Abstract: In an elevator sheave for a flat belt, the optimum crown height is within a range of approximately 0.033 to about 0.003 times the width of the elevator rope. The optimum radius is in the range of about 16.67 to about 50.00 times the width of the elevator rope. Both the crown height (h) and the crown radius (rc) may be expressed as a function of belt width (Wb). The groove width (wg) is in the range of approximately 1.5 and 2.25 times the width of the belt (Wb). A circumferential surface roughness of about 1.0 to 3.0 is applied. A hard, thin surface coating can be applied to enhance durability while maintaining traction.

Abstract: There is provided a clam shell shaped belt guide pulley having first and second curved halves which are hinged together. Each pulley half has curved inner and outer surfaces. The pulley is adapted to be placed on a large diameter shaft without the need to remove the shaft from the remainder of the machine. There is no supporting structure between the inner surfaces of the pulley halves and the shaft.

Abstract: A cylindrical pulley over which a belt or web is looped is composed of a series of flat, annular discs, each of which rotates about its own individual axis, all discs closely adjacent to its neighbors so that the aggregate of discs forms the cylindrical pulley. All rotating disc axes are parallel and all are inclined at a chosen angle to the aggregate pulley axis creating a belt contact surface that moves laterally as well as peripherally. All discs revolve about bearing carriers that are rotated together in outboard bearings to change the orientation of the angled discs with respect to the traveling belt. Thus a belt wrapped about the pulley can be made to move in a direction perpendicular to its travel direction at a rate defined by the degree to which the individual discs deviate from the aggregate pulley axis. More importantly the belt can be made to reverse its direction of lateral travel by opposite positioning of the disc carrier group for which purpose several operating means are shown.

Abstract: A transmission system comprising at least two wheels and a belt wound around the wheels with an unambiguous transmission ratio in that the transmission system is free from clearance and is comparatively stiff, while geometric errors, such as the polygon effect, and manufacturing errors and the occurrence of slip are neutralized in that the wheels are subdivided into segments, which can separately perform a tangential displacement. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings. The belt has spaced opening for receiving the segments, which tangentially displace in case of misalignment of the segments to the belt openings.

Abstract: A conveyor belt roller having a pair of opposed double tracks or threads formed on the surface thereof. Each pair of tracks spirals around the roller a plurality of times to provide a respective double helix pattern track running left and right from the midpoint of said roller. Each respective double helix pattern track commences upon the roller surface at starting points positioned 180.degree. apart about the circumference of the roller, and extends to the respective ends of the roller. The roller also is provided with interchangeable bearing and shaft housings for mounting at the respective ends of the roller to maintain the same in desired disposition during operation of the conveyor belt associated with the roller.

Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of rotating circular discs having cooperating friction surfaces for engaging a running yarn at a twisting zone. The drive system for the discs includes a drive component which includes a drive whorl and a coaxial drive pulley, and which is adapted to engage two separate drive belts. The drive component includes a unitary tubular drive member, a central shaft extending through and fixed to the drive member, a sleeve mounted to the frame of the apparatus and extending between the shaft and drive member, and bearings positioned between the shaft and sleeve. Also, the drive component is mounted to the frame by an arrangement which permits adjustment of the rotational axis of the drive whorl about a second axis which perpendicularly intersects the rotational axis, so as to permit accurate alignment of the rotational axis of the whorl along a direction perpendicular to the running direction of the tangential drive belt.

Abstract: An improved pulley system for use with band printers or the like. A steel printing band is looped around a pair of capstans covered by sleeves made of elastomeric material. The sleeves include a plurality of downwardly angled flexible circumferential flanges and a lower horizontal rim. The band contacts the flanges and as the capstans rotate, inward force on the band is transferred to a downward force by means of the flanges. The downward force causes the band to move into contact with the lower horizontal rim, thereby vertically aligning the band in the printer. In an alternate embodiment, a plurality of non-flexible circumferential ridges are included. The central ridges extend farther out from the surface of the sleeve and serve to define a crown. The sleeve configuration serves to reduce wear and accurately align the printing band within the printer assembly.

Abstract: A track roller system includes a replaceable rim assembly made up of two groups of multi-segments held to the hub in axially spaced position by a multi-segment retainer in the central space between the groups of rim segments, the rim segments retained against endwise movement on the hub by central locking surfaces, and the retainers held to the hub by removeable fasteners.