Abstract: A wire drive conveying apparatus is configured to cause a conveyance bogie to run along a guide rail by pulling a wire placed along the guide rail and formed to be endless when the opposite ends of the wire are connected to the conveyance bogie configured to slidably engage with the guide rail. The wire drive conveying apparatus includes: a movable trestle connected to a moving pulley configured to support the wire; a weight configured to pull the trestle in a direction in which a tensile force is given to the wire; a spring provided between the conveyance bogie and the trestle; and a locking mechanism configured to permit a movement of the trestle in the direction in which the tensile force is given to the wire and to prevent a movement of the trestle in a direction in which the wire is loosened.

Abstract: An adjustable and rotary rudder bar for a rotary wing aircraft. The rudder bar comprises a pedal bar, a main body, two pedals connected to the pedal bar on either side of the main body, a slider device enabling the pedal bar to slide relative to the main body, a structure fastened to a floor of the aircraft, and a shaft having a first axis (A1). The shaft is secured to the main body, and the main body is movable in turning relative to the structure about the first axis (A1) thus causing the main body, the pedal bar, and the pedals to turn simultaneously.

Abstract: A payload control apparatus includes a spring-line a spring line actuating mechanism, a spring line flying sheave over which a load line can pass, and a spring line, wherein the spring line flying sheave can move into a position either where the flying sheave is spaced from and in non-contact with or contacting but non-path-altering in relation to the load line, further wherein the spring-line flying sheave can be moved into another position such that the flying sheave engages the load-line and alters its path length. Thus, when a marine surface vessel falls in a heave event that would otherwise cause the payload at the end of the load line to fall as well, the flying sheave will move to increase the path length causing a shortening of the path length, thereby preventing the payload from falling.

Abstract: A weld deposit produced from a coated welding electrode for use in welding cast irons is provided by the present invention. Preferably, in one form of the present invention, the weld deposit composition comprises between approximately 54% and approximately 60% Nickel, between approximately 3.5% and approximately 5.5% Manganese, and between approximately 0.9% and approximately 1.4% Carbon. The weld deposit is preferably formed by using a coated welding electrode having a coating composition between approximately 0.3% and approximately 4.0% Magnesium and rare earth metals and oxides. The resulting weld deposit exhibits improved ductility, fracture toughness, and resistance to cracking.

Abstract: A method for tensioning a cable uses a tensioning installation comprising a pulley over which the cable passes, a support trolley for the mobile pulley, on a guide rail and one or several linear actuators to move the trolley.

Abstract: A method for tensioning a cable uses a tensioning installation comprising a pulley over which the cable passes, a support trolley for the mobile pulley, on a guide rail and one or several linear actuators to move the trolley.

Abstract: A damper is described for cableway traction cables comprising a carrying cable (2) stretched between a downstream station and an upstream station with a traction cable (3) returned by pulleys in the stations and at least one support (9) of the cables (2, 3) provided along the path of the cableway and bearing a support and a roller battery and a plurality of cabins (4) running along the carrying cables (2) and can be coupled with the traction cable (3) by means of clamps (6). In accordance with this invention to the structure of the roller battery and preferably at the entrance of the roller battery in the direction of movement (16) of the cabins there is joined a lever (12) bearing at its free end a roller (13) engaged on the traction cable (3) and the lever is loaded by elastic means or weights towards the traction cable in such a manner as to soften the passage of this roller over the back of the clamp and to accompany the traction cable in the lowering onto the roller battery.

Abstract: A bull-wheel of a fixed carrying-hauling rope chair lift is driven by a geared motor mechanism having a coaxial shaft line extending perpendicularly to the bull-wheel in a substantially vertical direction. The geared motor mechanism is composed of an electric motor and a mechanical speed reducer forming two independent modules arranged on opposing sides of the bull-wheel, which is fitted on a movable carriage to provide mechanical tensioning of the rope.

Abstract: A cable management system includes an opposed pair of articulated A-frame support assemblies that are connected by a cable support platform, such as a roller. The A-frame support assemblies may be reach between an electrical system chassis and an equipment rack in a manner that permits the elevation of the cable support platform to change concomitant with extensile and de-extensile motion of the electrical system chassis relative to the equipment rack. This change in elevation manages slack in the cable to feed cable forwardly during extensile motion of the electrical system chassis and to pull cable rearwardly with de-extensile motion.

Abstract: A conveying or transportation system having a haul rope (22) mounted for movement along a path, and a carrier unit (27) coupled to the haul rope (22). The carrier unit (27) is coupled to the haul rope (22) by a rope coupling assembly (51), which preferably includes a tension sensing device (139) and a screw jack tension adjustment assembly (141,142,143,144) formed to respond to sensed tension in the haul rope (22) to adjust the same at the terminals (31). The screw jack tension adjustment assembly (53) preferably includes two screw members (141,142) which are movably mounted in collar assemblies (143,144) and driven by a motor (162) to tension or relax the haul rope (22). A method of automatically maintaining and adjusting the tensioning of the haul rope (22) also is provided.

Abstract: A conveying or transportation system having a haul rope (22) mounted for movement along a path, a terminal (31) positioned along the path and having a docking surface (52), and a carrier unit (27) coupled to the haul rope (22). The carrier unit (27) is coupled to the haul rope (22) by a rope coupling assembly (51), preferably in the form of a hydraulic piston-cylinder assembly (53) and fluid circuit (54), formed to create and maintain tension in the haul rope (22) during transport of the carrier unit (27) and formed for yieldable displacement of the haul rope (22) relative to the carrier unit (27) upon engagement of the carrier unit (27) with the docking surface (52) at the terminal (31).

Abstract: The hauling-carrier cable of a gondola lift or chair lift is subdivided in two endless cable loops operating together. These cable loops are linked by a technical relay including two bull wheels or a bull wheel with two grooves, one for each cable loop. Transfer rails located in the technical relay permit the passage of the cabins from one cable loop to the other. The cabins, uncoupled from the cable, run on the transfer rail at the same velocity as the cable. The two bull wheels are mechanically coupled to transfer the driving power from one cable loop to the other.

Abstract: The invention relates to a cable tensioning device for ski lifts or aerial cableways of the kind comprising an endless transporting cable (1) extending between two rotatable wheels (2) mounted on carriers (4), at least one of the wheels being movable by the fact that its associated carrier is slideably movable relative to a foundation in order to keep the cable tensioned. The carrier (4) is by means of a nut device connected to a suitably rotatable screw (13). A tension sensing device is associated to a power source (19) for causing a rotating relative movement between the screw (13) and the nut device in order to, at an occurred change in the tension of the cable (1), start the power source (15) and effect a movement of the wheel (2) in question a distance relative to the foundation that corresponds to the actual tensional change.

Abstract: In an automobile conveyor having an endless conveyor chain within a framework having top plates to support the tire of an automobile, and a plurality of roller dollies spaced along the length of the chain normally positioned for movement within the framework, the improvement which comprises a split collar clamp having first and second sections that are clamped around the driven shaft of the conveyor. The first section of each clamp is angled with respect to the vertical so that the shaft is cradled against the pulling force of the drive sprocket. The second section of the clamp is removably attached to the first section so that the clamp is accessible from the top plate of the conveyor for easy access and removal of the driven sprocket, bearing members and transverse sprocket shaft through the top plate.

Abstract: A power and free conveyor system wherein a plurality of conveyor units or trolleys in the form of part suspension frames and the like may be moved by a continuously moving chain but the relationship of the chain to each conveyor is such that no latching or unlatching of the units is necessary to stop a particular unit at a station or when a stack-up of conveyor units occurs. Resumption of motion occurs automatically when intentional stopping or stack-up is relieved. The drive chain engages a plurality of freely rotating sprockets arranged on the trolley in a manner in which the chain forms a loop diverging from the general alignment of the chain. The acceleration and drive of the trolleys is thus controlled by a variable tension arrangement on one of the drive sprockets of the chain.

Abstract: The invention provides a portable towing device for downhill or water skiers which includes a drive unit. This drive unit comprises a motor and a drive pulley connected to the motor by a rotor which is rotated by the motor. The motor has an actuator which is movable from an idle position wherein the motor idles to an increased power position wherein the power output of the motor is increased. A first anchor is used to anchor the drive unit in the ground in a stationary position. There is also second anchor which is engageable in the ground at a distance from the drive unit and which has a support pulley connected thereto. An endless cable extends between and is entrained about the drive pulley and the support pulley and has an upper portion and a lower portion. A switch comprising a linkage is rotatably connected to the actuator at one end and to the cable at the other end by a regulator roller.

Abstract: A compensating rope sheave tie-down uses a hydraulic control system comprising various valves to control sheave motion. The sheave is permitted by the control system to move up and down slightly at slow rates, but is held in place if a high rate occurs. The control also permits the sheave to drop down to apply tension to the compensating rope.

Abstract: The invention relates to a continuous operation gondola lift with twin parallel suspension/haulage cables, between which the gondolas hang, connected to the cables by means of detachable grips. Inside the terminals the gondolas are disconnected from the cables and travel on transfer rails at reduced speed.

Abstract: A cable tensioning apparatus and method for automatically maintaining and adjusting the tension forces in an endless cable for a ski lift, aerial tramway, etc. is disclosed. The apparatus includes a carriage on which the cable is carried, a pneumatic carriage displacement apparatus in the form of a piston and cylinder, a source of gas under pressure, and a regulator and relief valve connected to establish and maintain a pressure within the cylinder which falls between predetermined minimum and maximum pressures. As the aerial tramway is subject to passenger or cargo loading and ambient conditions which change the tension forces, the pressure in the pneumatic cylinder will vary within the preselected range, and upon a change in the tension force beyond the range, gas is automatically exhausted from or interjected into the pneumatic cylinder to maintain tension forces within the preselected range.

Abstract: A rail-transportation system had a longitudinally elongated rail assembly along which extends a longitudinally moving traction element connected to a plurality of longitudinally spaced cars riding on the assembly. The rail assembly consists of upper and lower longitudinally extending rails interconnected by struts and normally formed thereby into a rigid framework or box-beam construction. The car has a car body to one transverse side of the rails, an upper wheel to the other transverse side of the rails and riding on the upper rail, and a lower wheel to the one side of the rails and bearing on the lower rail in a transverse direction opposite that of the upper wheel. The car may have inner and outer frames connected together by a parallelogrammatic linkage connected to a guide rail between the upper and lower rails to maintain a load-carrying platform of the car horizontal even when the various rails are all inclined to the horizontal.

Abstract: A railway car positioning carriage movable back and forth along a track parallel to a railway track is provided with a member for engagement with the end of a car on the railway track to move it. A pair of sheaves are rotatably mounted on the carriage, and first and second anchor devices are disposed at opposite ends of its track. A wire rope is secured at one end to each of the anchor devices and each rope extends therefrom toward the carriage and around one of the sheaves. The other ends of the ropes are connected to a member for pulling on either rope while simultaneously paying out the other one to thereby pull the carriage along its track. One of the ropes can be temporarily released from its anchor device and detachably connected to the carriage, which can then be pulled by the other rope so that the carriage will pull the released rope across its anchor device to take up slack in the ropes.

Abstract: This disclosure relates to a mining machine of the type having a driven winch which has its drive output sprocket engaging a displaced portion of a chain which normally extends along the entire length of the mine face. The displacement portion of the chain occurs between guide rollers on the mining machine. The chain is secured by a plurality of holding devices such as catches clamps or locking devices which are distributed at closely, spaced-apart locations along the length of the chain. As the mining machine propels itself along the chain, the guide roller or an associated member at the forward end of the mining machine releasably retain the chain in the holding devices until the chain is deflected toward the drive output sprocket of the winch. A guide roller or an associated member at the trailing end of the mining machine engage again the returned portion of the chain with the holding device as the chain is passed from the drive output sprocket.

Abstract: A drive terminal, for a continuous aerial cable tram system, movable on rails to tension the aerial cable. The drive terminal is biased to tensioning position by a suspended weight coupled to the terminal by a particular compensating linkage that eliminates torque forces between the drive terminal and its support.