Showing papers on "Reducer published in 1976"

Pressure sensitive electrical switch having a snap element

Abstract: A pressure sensitive electrical switch has a monostable snap disc which is deformed in response to the application of sufficient force. A pressure reducer transmits a force proportional to the pressure of a fluid. The reducer has an annular force transmitting ring which applies force to the snap disc along a circle which is substantially concentric with the disc. By changing the force reducer in a switch to one having a different diameter ring, the operating characteristics of the switch may be changed.

Motorized conveyor pulley

Abstract: A motorized conveyor pulley in which a rim and two end discs form a closed compartment and an electric motor and speed reducer are disposed in axial alignment with one another in the compartment. The motor is supported by a nonrotatable shaft extending through one end disc, and the speed reducer is connected to the motor by an input shaft and has an output shaft which is rigidly connected to the other end disc for rotating the pulley in response to the operation of the motor. A bearing is provided on said first shaft for permitting free rotation of the pulley with respect to the motor and the shaft, which are preferably prevented from rotating by a torque arm connected to the shaft. The air in the compartment is recirculated through the motor and along the inside surface of the pulley rim to cool the motor. The enclosed compartment is essentially sealed to minimize the entrance of dirt, excess moisture and other foreign materials thereinto, thus prolonging the life of the motor and speed reducer and minimizing the service requirements on the pulley assembly.

Electrostatic charge reducer

Abstract: The electrostatic charge generated by nonconductive liquids flowing through a pipeline and other apparatus is reduced by exposing the liquid to gamma radiation. In a preferred arrangement, a capsule containing cobalt-60 is suspended in the flowing liquid immediately before the liquid is discharged into a vessel in which it may be in contact with air.

Cooling system for gear reducers

Abstract: A cooling system for gear reducers having a housing with a lubricant therein, in which a motor for the pump and heat exchanger are mounted on a base structure to form a unitary assembly which can be fully assembled in the manufacturing plant and delivered to and installed at the site of the gear reducer. The temperature of the lubricant in the line from the gear reducer to the pump is sensed by a temperature responsive device and a control valve in the coolant line is regulated thereby for producing an intermittent flow to control the efficiency of the heat exchanger and thereby regulate the temperature of the lubricant in a predetermined range. A second temperature responsive device may be utilized to sense the temperature of the lubricant in the hot lubricant line and to shut down the equipment in the event the temperature of the lubricant, and consequently the temperature of the gear reducer, exceeds a predetermined value. A by-pass line having a relief valve may be included between the hot lubricant line and the return line to by-pass the lubricant around the heat exchanger in the event the flow through the heat exchanger becomes restricted and the pressure in the hot lubricant tends to become excessively high.

Speed reducer box for driving a pump jack

Abstract: An improved light weight speed reducer box for driving an oil pump jack and reducing the speed from a drive motor or the like to the pump jack. The speed reducer box includes reversible chain driven sprockets mounted on an input shaft, idle shaft, and output shaft. By mounting the shafts between a separate upper and lower housing, maintenance can be quickly performed on the speed reducer box.

Multiple power path concentric speed reducer

Abstract: A multiple power path concentric speed reducer in which a center shaft having a pinion thereon and an axle having an externally toothed gear thereon are disposed coaxially with respect to one another, and a plurality of gear trains operatively connect the pinion with the gear to provide multiple power path between the pinion and gear. The power or load is distributed equally between the several gear trains, and the center shaft may be the power input member, a housing the power output member and the axle the reaction member; or the center shaft may be the power input member, the axle the power output member, and the housing the reaction member. The concentric speed reducer is particularly adapted for use in vehicle wheel drives, especially in off-the-highway heavy duty equipment, wherein the speed reducer for each wheel is driven by a separate motor, such as a DC motor, mounted in or on the axle of the respective wheel.

Belt conveyor drive mechanism

Abstract: A drive mechanism for a belt conveyor system having a driven pulley and a belt trained thereon, the mechanism including a speed reducer disposed in the pulley and having coaxial input and output shafts, the output shaft being a reaction shaft for the rotatable housing of the speed reducer. The housing of the speed reducer is in axial alignment with the pulley and is connected thereto for driving the pulley. A brake is provided for restraining the rotation of the output shaft, and may consist of a disc rotatable with the output shaft and a hydraulically operated head controlled by a system including a pump driven by the output shaft in response to the load on the belt of the conveyor. The drive for the pump senses the load on the conveyor belt by the reaction response of the output shaft, thereby varying the rate at which the pressure in the hydraulic system increases to control the friction head indirectly in response to the conveyor load. A second brake, which may be a disc type with a hydraulically operated caliper head, is preferably included for controlling the conveyor system.

Side load protection arrangement for rotating equipment

Abstract: A brake release arrangement by which damage which otherwise would result from the application of excessive side loading to rotating equipment such as the boom of a digger derrick or crane is avoided. The drive system for rotating the boom includes a hydraulic motor, a non self-locking speed reducer and a spring applied, hydraulically releasable brake. Included in the brake release mechanism is a line which taps into the hydraulic line leading to the power equipment mounted on the boom and whose operation develops side loads. An adjustable pressure reducing valve in the tap line provides a fluid output at a reselected pressure to a small chamber in the brake housing. The pressurized fluid in the chamber acts on a piston which, when the side loading on the boom is great enough to cause damage, partially relaxes the brake force thus to permit slippage and back drive of the speed reducer and motor thereby to relieve the side load torque.

Sodium purification apparatus

Abstract: PURPOSE: Meshless type Na purification apparatus which purifies, at high efficiency using reducer and rectifying plate, the liquid metal Na used as a heat medium for heat exchanger of high speed breeder reactor. COPYRIGHT: (C)1978,JPO&Japio

Pneumatic conveyor delivering material in slugs - has throttle system equalising pressure drop in auxiliary air pipe

Abstract: The slugs follow each other along the main pipe, parallel to which there is a smaller compressed air auxiliary pipe, connected at regular intervals by branch pipes to the main one. A valve system delivers the auxiliary air in pulses to the main pipe, and the throttle system (7) equalising the pressure drop in stages over the conveyor length is incorporated in the auxiliary pipe. The throttle devices can be adjustable reducer valves acting if necessary also as measuring baffles, and there can be one of them after every, or every other, branch pipe. Means can be provided (9) for controlling the auxiliary air in regular pulses, so as to deliver the material at regular intervals, typically in the form of regularly actuated valves in each branch pipe.

Noise reducer for railway vehicles

Abstract: PURPOSE:To reduce noise produced by roilway vehicles, underside of vehicle provides noise reducing wall, and both sides of rails also provide projected wall.

A conduction type electromagnetic pump

Abstract: PURPOSE:A duct is rounded and also the reducer portion is shortened to obtain a thermally and mechanically favourable, safe and reliable abovementioned pump.

Chainntype satellite differential gear speed reducer

Abstract: PURPOSE:To obtain a speed reducer of low manufacturing costs, low frictional loss and high power transmitting efficiency using the standard sprocked and standard roller chain.

Internal combustion engine exhaust harmful components reducer

Abstract: PURPOSE:An internal combustion engine exhasut harmful components reducer, that compensates worsening trivalent catalyzer by correcting control air and fuel mixture ratio and further promotes exhaust counter-measure at an air and fuel mixture ratio control system of closed loop type.

Heat sensitive material for recording

Abstract: PURPOSE:To provide heat sensitive material for recording made of reducer and image forming constituent, capable of recording with easy operation.

Plastics or synthetic rubber pipe reducer - which is funnel shaped to accommodate different pipe diameters for filing

Abstract: The funnel-shaped pipe reducer is for applying to copper covered or copper strip coated synthetic rubber of PVC pipes. The pipes are sawn to size and filed or rasped at an angle of 30-35 degrees for fitting into a sleeve having a rubber roller cage. The pipe reducer has three or more knives. The foot supports are arranged in parallel to the funnel. The various dias. of pipes are accommodated in the funnel and turned within it under a light pressure. The necessary filing is thereby executed without wearisome and time-consuming hard filing, while hand slips and other small scale accidents are avoided.

Reducer solution for photograph

Abstract: PURPOSE:To prevent turning yellow of thick photographic plates for printing without any damage to image quality, by use of reducer solution containing complex consisted of dicerium salt and inorganic salt.

Speed reducer of an elevator at a terminal floor

Abstract: PURPOSE:To secure the reduction of speed safely adjacent to a terminal floor even though a speed instruction circuit, a field magnet control circuit or other circuit is trouble.

Arrangements for preventing or minimizing over-pressures in gas pipes

Abstract: This invention relates to arrangements for the prevention or minimization of over-pressures due to sudden interruptions in the flow of a compressible fluid which are caused by an obturator such as an electrical valve along a main gas pipe and more particularly relates to such arrangements which consist of a pressure regulator and reducer mounted on the said main pipe upstream of the obturator and the response time of which is longer than that of the said obturator, a venturi which communicates with that section of the main pipe which is situated between the obturator and the regulator and reducer, and a buffer reservoir which is in permanent communication with the said section of main pipe via the venturi. According to the invention the regulator and reducer also forms a venturi.