Abstract: A ceiling-mounted bicycle storage hoist including a first elongated structural member (36) and a second elongated structural member (38). The first elongated structural member is connected to the second elongated structural member, forming a V-shaped structural assembly spanning at least 1220 mm in one direction, to enable attachment to ceilings comprising wooden joists spaced at 305 mm, 406 mm, 488 mm, or 610 mm intervals. A first, second, and third rope and pulley system are attached to the first and second elongated structural members. The first, second, and third rope and pulley systems converge at a location near the connection between the first and second elongated structural members, enabling a user to control the first, second, and third rope and pulley systems simultaneously. A bicycle may be attached to the first, second, and third rope and pulley systems and hoisted in a horizontal orientation.

Abstract: A rigid high load lightweight block (1) has unidirectional high strength moulded fibre bundles (4a, 4b) in the side plates (3a, 3b) for the carrying of the major operating tensile loads within the block (1), thereby minimising the weight and maximising the load of the assembly.

Abstract: A high load lightweight block assembly (1) with a reduced mass hollow central shaft (2) through which a continuous or discontinuous rope loop (10) can be passed, which rope loop (10) carries the tensile operating loads within the block (1) thereby minimising the weight of the assembly.

Abstract: A tether-based system for utilizing the aerostatic lift of a light-than-air balloon for the transport of payload across a wide area without having to translate the balloon along with the payload.

Abstract: A block with a rotating sheave mounted between a pair of side plates. Captured between the side plates may be a post about which a mounting loop may be mounted. The post is removable from the between the side plates to permit the loop to be attached or detached from the block.

Abstract: A mechanical adjustment device of a sheave assembly of a mechanical lift installation, where the sheave assembly is equipped with rotary sheaves mounted rotating on a support frame comprising a shoe fixed by clamping means to a support of a pylon of the installation, comprises adjustment means of the incline, obtained after clamping, of the support with respect to the shoe in a lateral direction oriented in a direction parallel to the axes of rotation of the sheaves.

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 cable is moved through a cable fitting (for example, a BUB fitting) into a first opening of the fitting and out of a second opening of the fitting. A roller support structure is mounted on a fitting such that a set of rollers supported by the roller support structure is disposed inside the interior volume of the fitting. A spacer is disposed between the roller support structure and the fitting. An end of a cable is then moved into a first opening of the filling, over the rollers, and out of the fitting through the second opening. Once the cable has rolled over the rollers a desired distance though the fitting, the spacer is removed and the rollers are detached from the roller support structure. The rollers are slipped out around the cable and extracted from the interior volume. The roller support structure is then unmounted from the fitting.

Abstract: A rigid high load lightweight block (1) has unidirectional high strength moulded fibre bundles (4a, 4b) in the side plates (3a, 3b) for the carrying of the major operating tensile loads within the block(1), thereby minimising the weight and maximising the load of the assembly.

Abstract: The invention provides a rope sheave having two substantially opposed faces, each face having a plurality of ridges extending from an inner circumferential region of the face to an outer circumferential region of the face. The ridges are arranged such that those portions of the ridges on one face at the inner circumferential region substantially oppose those portions of the ridges on the opposite face at the inner circumferential region, and those portions of the ridges at the outer circumferential region on one face substantially oppose regions between those portions of the ridges at the outer circumferential region of the other face. The faces may be separable to provide two sheave parts.

Abstract: One embodiment of an easel for supporting an artist work piece includes a vertical support member including an interior, a pulley system positioned completely within the interior, the pulley system adapted for moving a horizontal support member on the vertical support member, and a horizontal support member secured to the pulley system and extending into the interior of the vertical support member.

Abstract: A preferred embodiment of a roller assembly for a lifting device for a personal-transportation vehicle includes a shaft member for mounting on a lifting arm assembly of the lifting device and having an outer surface, and a roller member for supporting a lifting strap of the lifting device. The roller member has an inner surface defining a central passage for receiving the shaft and contacting the outer surface. The inner and outer surfaces have complementary profiles that permit a relative orientation of the roller member and the shaft member to change so that a weight vector acting through the lifting strap can remain substantially perpendicular to an axial centerline of the roller member.

Abstract: A starting block is used by a runner in a track event. The starting block contains a rail and a pair of foot pedal assemblies, one assembly connected to the left side of the rail and one assembly connected to the right side of the rail. Each foot pedal assembly contains a pad having a width of about five to twelve inches upon which the runner's foot is placed. Each pad contains markings along its width to enable the runner to place his feet at precisely the desired width.

Abstract: A cable guide for a cable support system that includes at least one support tray. The cable guide has a base with two base portions disposed in side by side relation. The base portions are adapted to cooperatively engage wires of the support tray(s). A support shaft extends from at least one of the base portions, and a roller is rotatably mounted on the support shaft and engage cables so that they may be turned along a path defined by the cable trays.

Abstract: A cable sheave for cableway systems has a hub and a sheave surface extending outwardly from the hub. The sheave surface may be formed of spokes and a cable groove is formed on its periphery. Fastening devices are provided in the sheave surface for rigidly connecting at least two sheave parts to one another to form the complete cable sheave. The parting line(s) is located outside the hub. Here, a first cable sheave part containing the hub and forming the central region of the cable sheave is provided, and at least two further, second cable sheave parts are provided, which parts are of identical size, radially surround the first cable sheave part, are connected rigidly to the first cable sheave part and to the at least one second cable sheave part which is present and by means of which the cable groove is formed.

Abstract: The invention relates to a stand having a pivotable support arm (2) and a balance weight (AG), in which the balance weight (AG) acts via a cable pull (24) for the weight compensation of the load (G), the balance weight (AG) being arranged in the area of the vertical upright column (21) of the stand.

Abstract: The device enables a switch from the pulley blocks being rigged with one strand to the pulley blocks being rigged with two strands and vice versa. The jib tip has a pulley moveable along its axle between a central position, when the blocks are rigged with one strand, and a lateral position, when the blocks are rigged with two strands. The lifting block, with housing of symmetric shape, comprises a pulley and retractable guide means for the lifting cable. When the blocks are rigged for two strands, the end of the cable is connected to a point of attachment situated on the jib tip, on the opposite side to the lateral position of the pulley. When the blocks are rigged with one strand, the end of the cable is connected to a point of attachment situated on the pulley block. This device for changing the rigging of the blocks applies mainly to luffing cranes.

Abstract: A tensiometer for measuring tension in a tubular, such as a cable, using segmented sheave assemblies is provided. The precision of a tension measurement, and the bending stress to which the tubular is exposed during the tension measurement, are functions of the effective radii of sheaves comprising the tensiometer. A segmented sheave assembly is much smaller dimensionally than a sheave wheel with the same effective radius. For given operating specifications, the tensiometer comprising segmented sheave assemblies is, therefore, much more compact than a tensiometer comprising conventional sheave wheels.

Abstract: A tubing installation system and method having a length of flexible tubing, a handle having a first end and second end and at least one wheel rotatably mounted to the first end. The at least one wheel has a circumferential portion with a complimentary shape to at least a portion of the tubing and an axis of rotation substantially perpendicular to the handle. The circumferential portion is used to urge the tubing into a tubing recess.

Abstract: A line-handling block particularly for sailing vessels has an attachment device (30) rotatably mounted in the body. Locking device (50) are slidable in keyhole slots (60) into or out of engagement with the attachment device (30). When in engagement the locking device (50) may permit only limited rotation of the attachment device to either side of a central position. They may yield if an excessive torsional load is experienced, and may be supplied in various interchangeable forms for fitting to a given block so that its characteristics may be adjusted.

Abstract: The specification discloses a pulley assembly including a spun-formed pulley and a bearing secured within the pulley. The bearing is secured using any combination of press-fitting, adhering, coining, or peening. A manufacturing method also is disclosed.

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

Abstract: A lift, a system and a method for elevating a trailer are provided. The lift may have an “A” frame for supporting the trailer. The trailer may be placed on the lift and secured to the lift. A cable attached to the lift is used to pull the lift and the trailer towards a wall. The cable, with the use of a pulley system, pulls the trailer in an upward direction towards the wall such that the lift and the trailer may be elevated in a vertical direction. The lift with the trailer may be attached to the bracket on the wall and locked into place. The lift and the trailer may be removed from the wall by releasing a lock.

Abstract: A compound of formula I:

Abstract: A pulley apparatus (27) is disclosed which is adapted for use with a double hung wind. (10). The apparatus is used in pairs which are mounted in a recess (30) formed in the head (20) of the double hunt window. A pair of sash cords (25) are routed through the apparatuses and are attached to each sash so as to counterbalance one to the other, without the use of springs or extra weights.

Abstract: A riveted structure for a pulley seat, comprises a base which is pivotally connected to the pulley and is provided with two apertures on the surface of the two sides thereof, respectively; and a panel which is provided with an elongate through-hole at the center thereof, and which can cover the base, such that the pulley passes through the through-hole and is exposed outside; wherein two rivets are integrally formed on the two sides of the panel, which are passed through the two apertures and then, pressed, whereby the two rivets are deformed and positioned on the underside of the apertures, thereby providing rigid connection between the panel and base and no riveted trace exists therebetween.

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: The invention relates to a motor-driven (22) climbing device (1) which, with the aid of a motor-driven winch (14) and a conventional rope lock (4), allows comfortable ascent along a rope (2), the safety factor with regard to fall prevention being maintained.

Abstract: A traction sheave for driving synthetic fiber ropes, preferably of an elevator installation, ensures a consistently good selected tractive capacity that is largely independent of external influences which reduce friction. At least part of the rope running surface on the traction sheave is provided with a selected roughness grade of N7 to N12. The selected roughness grade on the running surface is formed either by mechanical machining or by use of a suitable coating, preferably a plasma coating of corundum. For example, only the bed of the rope groove, the area of the flanks of the rope groove, or a wide area of the surface of the rope groove can be of the selected roughness grade. By correspondingly suitable arrangement of these differently formed rope grooves on the traction sheave, a desired tractive behavior can be systematically effected.

Abstract: A conduit cable feeding sheave assembly is disclosed having a frame structure, an axle assembly disposed within the frame structure, and a sheave wheel disposed about the axle assembly. In one embodiment, the sheave wheel is fabricated of a self-lubricating, durable polymeric material. A slotted, tubular arm affixed to the frame extends along a line substantially tangential to the wheel. The arm has an exterior diameter sized to fit within a conventional conduit pipe, preferably having a diameter ranging from 2 to 10 inches. In one preferred embodiment, the tubular arm has at least one locking mechanism for temporarily securing the conduit sheave assembly within the conduit pipe. One disclosed locking mechanism is a threaded screw that extends from the interior of the tubular arm to engage the conduit.

Abstract: An easily carried and assembled apparatus for use in moving materials between two elevated locations, such as windows of spaced building, that includes a sending assembly positionable across a window in a first building, and a receiving assembly positioned across the window in the second building. Each assembly included a pair of triangular bracing members with bases that are positioned against the interior of the wall on either side of the opening, and a crossbar that is attached at its ends to the apexes of the bracing members, and extends across the opening. A cable is stretched between the assemblies, and a material support is used to carry materials along the cable between the buildings. The apparatus may be combined with a vertical lifting assembly that is attachable within a wall opening in one of the buildings.

Abstract: A lightning resistant hydrological pulley comprising an insulator between a pulley body and an axle insert. The insulator is made of electrically non-conductive material, thereby denying lightning surges an electrical path from the pulley body to an axle disposed within the axle insert. Set screws angularly immobilize the pulley body relative to the insulator, and the insulator relative to the axle insert and relative to an axle disposed within the axle insert. In the preferred embodiment, the insulator is made of synthetic material such as white Delrin, and the pulley body and the axle insert are made of brass.

Abstract: An end cap assembly which has recessed areas in the base and cover which accept protruding spindles on the upper and lower surfaces of the pulley to align the pulley, provides easy access to the pulley without removal of the track by attaching the base portion of the assembly but not the cover portion to the track, and is Constructed of higher strength and more durable materials than previous end cap assemblies available, resisting cracking even in extreme environments.

Abstract: Disclosed is a pulley that comprises a metal bearing with an elastomeric material on its outer rim molded into a polymeric wheel, where the coefficient of thermal expansion of the polymeric wheel is at least 1.0.times.10.sup.-6 cm/cm/.degree.C. greater than the coefficient of thermal expansion of the metal bearing. The pulley is made by applying an elastomeric material to the outer edge of the metal bearing and molding the polymeric wheel around it. The use of the elastomeric material prevents slippage between the metal bearing and the polymeric wheel.

Abstract: A bi-, tri-, or quadripod apparatus utilized over a confined space to aid in the introduction or removal of persons or equipment into the space, including a head casting with upright members extending vertically downwards and outwardly from the head casting. An anchor plate is centered and affixed in each of the respective exterior surfaces of the head casting, and the anchor plates have apertures in or about their lower portions for the attachment of support and/or hauling devices.

Abstract: A cable guide for a winch having a lifting drum over which a cable is wound back and forth between two end flanges. A guide body in the form of a truncated cone is slidably mounted upon a pinion that is located adjacent to one end of the drum, generally perpendicular to the axis of the drum. The guide body contains a groove at its narrow end in which the cable rides as it approaches the end of the drum. The guide smoothly plays the cable onto the drum so that it can reverse its direction without producing multiple wraps at the end of the drum. A spring biases the guide body into a home position to accommodate the cable during the time the first wrap is being wound on the drum. Thereafter, the guide automatically moves back against the spring force to automatically align itself with regard to further wrapped layers.

Abstract: A rope guiding device (1) for rope winches (W) comprises a stand with points of attachment for the attachment of a rope winch, which stand accommodates a rope guide (3) constituting the rope outlet and inlet and a guide roller (4) pivotally supported on this rope guide for deflecting the rope between rope winch and rope guide.

Abstract: Apparatus for balancing and lifting a load supported from opposite ends of a cable or chain and which includes a sheave engageable by the cable or chain and through which extends a pin member. The pin member is radially offset from the center of the sheave and is supported, at opposite ends thereof, by structural members which may be attached to a source of lifting power.

Abstract: A sheave liner for an elevator system sheave that supports a hoist rope with an elevator car suspended therefrom is replaced without having to remove the hoist ropes and without having to hang the elevator car by means other than the hoist ropes. The existing liner is cut and removed while the elevator car is suspended from the hoist ropes resting on the sheave. The new liner is rotated into its position and two ends of the liner are joined by either a mechanical bond or by a room temperature adhesive bond.

Abstract: A system for cleaning light transmitting elements such as windscreens, window-panes or optical instruments, comprising a wiper arm supported by a carriage performing reciprocating movements, and a intermediate gear means for transforming rotary movements into oscillating movements, with the intermediate gear means cooperating with a driving means and actuating the carriage and, on the driven side, being in communication with a shaft performing oscillating movements. The shaft is the driving part of a transmission gear means for oscillating movements. The part of the transmission gear means performing movements on the driven side actuates the carriage through a tensile and/or thrust member.

Abstract: A pressure containing wireline sheave mechanism having a sheave body defining an opening within which is received a sheave housing which cooperates with the sheave body to define a circular internal sheave chamber which is exposed to operating pressure such as well pressure during well servicing activities. A split sheave having an external wireline groove is located within the internal chamber and is rotatably supported at its inner periphery by bearings. During operation of the wireline sheave mechanism lubricant is supplied to the inner periphery of the internal sheave chamber at a location adjacent the bearing and at a lubricant pressure exceeding well pressure to prevent well pressure induced migration of contaminants from the wireline groove of the sheave to its bearings.

Abstract: The invention provides in a first aspect a novel synchronous motor in which the rotor comprises a substantially solid multi-pole magnet axially displaced from the coil which, itself, is of substantially the same diametrical size. With this arrangement a very powerful motor can be provided for a relatively small size and is suitable for use in powering ornaments such as Christmas tree ornaments direct from a socket of a fairy light string or decorative lights. In a second aspect of the invention, reciprocation means are provided suitable for use with the synchronous motor of the first aspect which can automatically raise and lower ornaments and similar novelty items. In a third aspect of the invention reciprocation means is provided which may be used either with the synchronous motor of the invention or with a conventional D.C. motor to provide for winding and sudden unwinding of a cord and hence an ornament or a novelty item attached thereto.

Abstract: A bucket dump block, used on dragline buckets, has side frames and a rotatable rope-guiding sheave. In the improvement, each side frame has a separate ring-like support section extending toward the other side frame and abutting the support section of such other side frame. The sheave is supported by and rotates about such support sections. The sheave rides on an annular anti-friction member retained on a sleeve into which the support sections are press-fitted. The dump block (which is devoid of provisions for lubrication) has a minimum number of parts and is easy to manufacture and repair.

Abstract: A high strength, low friction, corrosion free block for marine environments includes a fixed or swivel head, shackle and a ground and polished axle all composed of 17-4 ph stainless steel sandwiched between titanium/titanium alloy side cheeks. One or more aluminum sheaves each having a filament wound epoxy glass radial bushing with a Teflon liner are journaled around the axle. Oven cured Teflon filled thrust washers bonded to the sides of the sheave(s) turn against polished inner surfaces of the side cheeks. The blocks may include titanium/titanium alloy straps exterior the side cheeks supporting the axle to provide increased functional load bearing capacities ranging up to and exceeding 50,000 lbs.

Abstract: A pulley comprises a hub with spokes arranged radially about its circumference. Secured on the spokes is a rim with a rim base accommodating lining inserts having holes wherethrough a flexible link extends to embrace the rim base. At the outside of the pulley each insert has a groove terminating in the hole. The width of the groove is such as to ensure removal of the flexible link from the hole therethrough. Provided at end faces of the inserts concentrically with the holes are recesses receiving ends of precompressed resilient elements disposed between the inserts.

Abstract: A snatch block has its sheave established by connecting the smaller ends of a pair of frusto-conical shell portions to a central member rotatably mounted on an axle protruding from one side of the hanger. The larger ends of the portions merge with end walls which are normal to the axis of the sheave and extend outwardly a distance greater than line diameters. The end walls have lips which are disposed relative to fixed water shields in a manner preventing a line, running against an end wall, from contacting the proximate water shield.

Abstract: A pulley assembly is provided for an operating cord. The pulley has a body with a rotational axis and an annular outer surface concentric with the rotational axis. A cord retention member has a surface to be situated around the annular outer pulley surface in operative relationship with the pulley and extending more than 180.degree. around the annular outer pulley surface. Structure is provided on the pulley and cord retention member to cooperate with the cord so that the cord prevents separation of the pulley and cord retention member from their operative relationship.

Abstract: A traction elevator rope (4) is helically wrapped about at least 360.degree. of the periphery of a drive sheave (2) to provide sufficient traction for low-speed elevator operations without excessive wear or seizing and to provide sufficient traction in high-speed elevator operations without excessive wear or high drive sheave loading.

Abstract: A well pump includes a string of risers composed of a plurality of releasably coupled risers, a hollow upright, and a drive mechanism releasably mounted on the upright. The corresponding erecting rig consists of a mast adapted to be supported by the upright, a deflecting device arranged at the upper end of the mast, and a pulling element passing around the deflecting device and formed at its one end for suspension of a riser and at its other end for suspension of a lifting device. The erecting rig is much lighter in weight and simpler and, therefore, may be transported and assembled more easily than lifting tackle used so far of the same lifting height and capacity.

Abstract: A mounting bracket assembly for a creosote cutter includes a mounting bracket which may be fixedly secured to a chimney so as to extend across the flue. Fastening bands wrapped around the chimney are directed through guides forming a part of the bracket, and a freely moving cylindrically-shaped section of conduit which functions as a pulley is centrally positioned on the bracket. A creosote cutter pull chain is positioned over the conduit and downwardly into the flue of the chimney. The pull chain both supports the cutter and operates as the means by which the cutter is selectively moved upwardly and downwardly within the flue.