Showing papers on "Reducer published in 1977"

Vehicle drag reducer

Abstract: A truck tractor and trailer combination is disclosed having air deflector shields extending from the cab to the trailer and a drag reducer shield enclosing the rear end of the trailer whereby air drag against the truck tractor and trailer is substantially reduced.

Swivel head reaction bar nut runner

Abstract: The invention relates to a pneumatically powered nut runner having an axial swivel interposed the housings of the air motor and gear reducer which permits radial repositioning of the gear reducer housing relative to the air motor housing. A torque reaction bar is affixed to the gear reducer housing and is thus also radially repositionable relative to the air motor housing. This repositioning capability facilitates adjustment of the reaction bar so that it contacts a bracing point without necessitating the radial repositioning of the air motor housing. When torque is applied to a fastener, nearly all reaction torque is taken by the torque bar and none is transmitted to the operator.

Fluid distributing devices, particularly for hydraulic remote control

Abstract: A distributor comprising a pressure reducer mounted in a body and a control member, capable of modifying the calibration of the reducer, which comprises a plunger movable in a cavity, which comprises, on one side, a housing where the reducer calibrating means are placed, and, on the other side, a bore in which an active part of the plunger can be moved. The body 3 of the distributor is formed from two parts 3a, 3b independent of each other and connected by assembly means A; these two parts are separated by a surface S passing through housing 13 connected to the low-pressure, but located in the vicinity of one end of bore 18 connected to the pressurized zone. Application to hydraulic distributors, particularly for public works equipment.

Through flow sump pump

Abstract: A sump motor is mounted in a section of pipe. The motor is a standard motor having special caps at each end of the motor shell and with the shell forming a waterproof enclosure. The caps have radially extending spacers extending out to the pipe. At each end of the pipe are reducers, the internal diameter of the small ends of which correspond to the external diameter of another, smaller standard pipe size. At the bottom a piece of pipe of the smaller size extends inwardly of the reducer to a location in juxtaposition to the pump impeller. Various connections and mounting arrangements may be made using standard sizes of pipe. In one embodiment the pump is mounted on a vertical track and positioned above a sump. When the water rises to a level in the sump at which pumping should commence, the motor is energized and the pump is lowered along the track into the sump.

Vehicle speed reducer or eddy current brake

Abstract: A speed reducer or eddy current brake for a vehicle, wherein the frame of the speed reducer is affixed on the support housing of the vehicle differential; the speed reducer includes a stator attached to the frame of the reducer; the frame is adjustable in position with respect to the stator; the rotor of the speed reducer is a flywheel which is properly positioned with respect to the vehicle drive shaft; means for adjusting the flywheel position with respect to the stator; means for magnetically shielding the bearings of the drive shaft of the flywheel from the magnetic force lines from the stator.

Connector, reducer/adapter, flare to flareless

Abstract: A high pressure fluid pipe connector for joining a threaded pipe to a smo-walled tube; the connector also acts as a flow reducer. Special features of the connector are minimum number of parts, smooth continuous fluid surface contours, and relatively short compact connector length.

Angle sensing tool for applying torque

Abstract: There is disclosed an air powered tool for applying torque to threaded fasteners and the like. The tool comprises a motor, a gear reducer and a driver whereby the motor turns at a higher rate than the driver. In order to provide better resolution of angle sensings, an angle sensor is arranged to determine rotation of the motor rather than of the driver. Because the fastener, driver, gear reducer and motor tend to torque up thereby producing an exaggerated reading for the angle of advance of the fastener, means are provided to compensate for the rotation sensing as a function of applied torque.

Electric floor polisher

Abstract: PURPOSE: To prevent electric shock by attaching a motor base to an insulator ring fitted to an outer case and attaching a gear case of a speed reducer to the insulator ring. COPYRIGHT: (C)1979,JPO&Japio

Drive motor mounting base for a gear motor having a c-faced reducer

Abstract: A mounting base for supporting a standard footed motor in driving relationship on a C-faced reducer of a gear motor to enable it to be driven by the footed motor without requiring the use of a different interface adapter. The motor mounting base is characterized by having two orthogonally disposed walls one of which has a planar surface adapted for engagement with the C-faced reducer, while the other wall has a planar surface for supporting a footed motor. The planar surfaces are machined to be essentially perpendicular and are further characterized by having sets of apertures through their associated walls for receiving mounting bolts to secure, respectively, the mounting base in operating position on the C-faced reducer and the base to a footed motor. The sets of apertures are shaped to afford clearance fits with the securing bolts to enable the footed motor to be accurately aligned with the driven shaft of the gear motor, and to support the footed motor in such an accurately aligned position relative to the gear motor so that a flexible shaft coupling need not be used between the two shafts.

Speed reducer, particularly for driving a propeller

Abstract: A belt-drive speed reducer, particularly for driving an airplane propeller from a standard automobile engine, features a protective housing attached to the motor, being supported by suitable borings 22 and 40 of the shaft of a drive pulley 10, on the one hand, turned by the motor crankshaft and, on the other hand, the propeller shaft supporting a driven pulley turned by a belt which, in section, exhibits V-shaped ribs. The bearing of the propeller shaft has on its periphery a disk eccentric with respect to the propeller shaft, the rotation of which disk in the boring of the housing regulates the tension of the belt.

Lawn mower controls

Abstract: The rear wheels of a rotary mower are driven off the blade shaft by a compact and cylindrical speed reducer mounted directly on the rear wheels drive axle. The speed reducer is drive connected to the blade shaft by a variable pulley-belt system to provide an adjustment in the speed of the mower along the ground, whereas start and stop of the mower is controlled by a wrap-around spring type clutch on the speed reducer.

Process for the manufacture of steel products

Abstract: The invention relates to a process for manufacturing products such as bars, sections, strips, weldless tubes made of ordinary or alloyed steel, starting from an iron ore, without passing through the liquid state. This process consists in: A pre-reduced concentrated iron ore with a non-reducible oxide content of less than 1% is prepared, A homogeneous mixture of this ore is made with a lubricant, a binder and a carbonized reducer, A slab of this mixture is compacted and a complete reduction is carried out on this compacted slab under a neutral or reducer gas flow of between 1100° and 1350° C in order to obtain a porous steel slab, The hot slab leaving the furnace is transformed by extrusion, rolling or forging. The invention enables products of accurate analysis to be obtained with simplified installations of average capacity.

Fluorescent lamp power reducer

Abstract: A power reducer for a rapid start fluorescent lamp includes a time delay circuit that discontinues heater current to the lamp cathode after a predetermined time interval and places, at the same time, a current-reducing capacitor in series with the lamp.

Controlling of steam temperature of boiler

Abstract: PURPOSE:To improve the rsponse when the outlet steam temperature of boiler is controlled by overheat reducers and feedforward signals are applied to a control system, by introducing the first order lag into the feedforward. CONSTITUTION:The PID calculation of the difference between a setpoint for the steam temperature at the outlet of the boiler and a measured value is performed by a PID controller 1 of a second water feed control system. An outlet steam temperature set signal for a second overheat reducer 2 is produced from the sum of the output of the PID calculation and a feedforward signal 8 based on a load set signal. The PI calculation of the difference between the outlet steam temperature set signal and the measured value is performed by a PI controller 1'. A second feedforward signal 10 is added to the output f the PI calculation to apply a valve opening degree command for the reducer 2. A first overheat reducer 5 is controlled likewise. The first order lags are introduced into load feedforward signals 6-8, which are an outlet steam temperature set signals for the reducer 2, respectively.

Outside, remote-controlled, rearview mirror

Abstract: In a remote-controlled rearview mirror, particularly for motor vehicles, the mirror is mounted by a convex swivel element resting in a concave seat forming one piece with the assembly base. The seating has a central opening allowing passage of a shank extending the swivel and which fits into a reducer box where it is immobilized. The reducer box has a center axis, on which a freely rotating center pinion is mounted, being integral with the control lever, and the outer part of the pinion being smooth and freely rotatable in the center of a planet wheel carrier element which serves as a bearing therefor and which constitutes a cover for the reducer box. The planet wheel carrier includes three perpendicular axes, in the direction of the inside of the box, on which three differential pinions rest, gearing on the one hand into the center pinion and on the other hand into a toothed ring on the inside periphery of the box.

Multiple speed gear reducer

Abstract: A multiple speed gear reducer embodying the present invention includes a power input shaft and a power output shaft, a plurality of load sharing gear trains interconnecting said input and output shafts, and two or more reaction gears of different sizes coaxially arranged on the input shaft and operatively connected to the gear train or trains for producing relative rotation between said gear train or trains and the input shaft. A clutch for each of said reaction gears selectively restrains the gears to obtain a predetermined gear reduction ratio between the input and the output shafts. The reaction gears are mounted on separate, coaxially arranged sleeves around the input shaft and are controlled through clutches on the sleeves to obtain a selected gear ratio.

Planetary speed reducer

Abstract: A multistage speed reducer for high speed rotation including a planetary roller friction reducer for the first stage reducer and a geared reducer for the second stage reducer, the planetary roller friction reducer having its output shaft also used as the input shaft of the geared reducer. Such an arrangement permits transmission of a very high speed and large horsepower rotation at a relatively high reduction ratio with low noise while at the same time consuming less space. The speed reducer may preferably be equipped with safety means for excessive torques.

Force reducer for paper cutting guillotine beam - senses beam load generating signal for actuator to halt operation if operators hand is near

Abstract: The pressure force reducer of a guillotine beam is used in paper cutting machines. The beam exerts pressure on paper stack for stabilisation purposes and its force on descending is reduced to prevent accidents to operator hand on setting. The force is reduced to a value compatible with human finger resistance independently of paper stack thickness. The beam force is measured and on the measured signal is superposed constant force signal. The resultant signal is used as control signal from an electro hydraulic pressure regulator valve. This ensures a constant pressure force on beam independently of its position.

Vacuum reducer valve

Abstract: A vacuum reducer valve is used in the distributor vacuum advance circuit in conjunction with an engine overheat detection three way valve which normally applies spark port vacuum to the distributor vacuum advance actuator. When the engine overheats, the spark port signal is blocked and manifold vacuum is applied to the distributor vacuum actuator. The manifold vacuum, however, averages three to four inches of mercury vacuum higher than the spark port vacuum thereby necessitating the use of a vacuum reducer valve in series with the manifold vacuum line to the distributor to avoid excessive spark advance.

Method of treating exhasut gas of gas turbine and its apparatus

Abstract: PURPOSE:To remove the nitrogen oxide in the exhaust gas of a gas turbine by utilizing liquid as a reducer to reduce the exhaust gas temperature.

Drive reducer for tape recorder

Abstract: A drive reducer for a tape recorder accomplishes a large reduction from the surface speed of a motor-driven shaft to the surface speed of a drive element for advancing a tape media such as a magnetic recording tape on a flat card. A cup-shaped element is fixed to a reducer shaft and positioned so that the inner surface of a cylindrical outer wall engages the motor-driven shaft. An idler wheel freely rotatable on the reducer shaft is positioned radially inside the cup-shaped element and is formed of compressible material with a diameter large enough for compressibly engaging the motor-driven shaft and pressing it against the inner surface of the outer wall of the cup-shaped element. Rotation of the reducer shaft is transferred to the driven element preferably by a friction sleeve on the reducer shaft and a friction disk engaging the sleeve and turning a shaft supporting the driven element.

Device for driving movable arcade

Abstract: PURPOSE:To provide a device for driving a movable arcade characterized in that a speed reducer used for an arcade equipped in a shopping district is eliminated; moving speed can be changed or set at will; maintenance is made easy; and an open-and-close body operated by human power at power failure is lightened.

Heat pump with noise reducing housing - has thermostatic valve at evaporator outlet and pressure reducer between condenser and evaporator

Abstract: A heat pump suitable for domestic use is housed in a unit designed to reduce the noise from the pump, compressor and motor. The evaporator (4) has a thermostatically operated valve (18) at its discharge side to keep the temperature of the fluid evaporating inside to a constant level so as to keep the efficiency constant. The heat exchange fluid is a chlorofluoro hydrocarbon. Between the condenser (12) and the heat exchanger (4) forming the evaporator is a pressure reducer (16) which may be a nozzle. The compressor (8) is housed inside a cast metal casing (40) with wells 5 to 10 mm thick. This casing, the evaporator (4), the pressure reducer (16) and the valve (18), are housed inside a further enclosure (48) lined with felt (52), with the condenser (12) above it, housed under the outer casing (54).

Reduction gear device

Abstract: PURPOSE:Reduction gear device of front 4 stages and rear 1 stage which contains over drive stage, by availing parallel gear rows suited to liquid automatic reducer, can be secured.

Snap action drive for movable contact rod - is for load isolator with energy store wound up by motor through reducer

Abstract: The motor (2) with its reducer gears (4) and a disc (5) with a segment-shaped slot (6) are mounted in a supporting frame (1). A rocker arm (8) is mounted on the disc shaft through a traverse (7) connected to the frame (1) by springs. The traverse passes through the slot (6), and a two-armed lever is supported by the disc (5) shaft. It is mechanically connected with the movable switching rods. The rod system is coupled with a two armed lever (12) which enables transfer to be made between on ON and on OFF position.

Drag reducer for container lorry - with light plastics construction demountable profile for leading face of container

Abstract: The upper half of the leading face of the container is fitted with a demountable shape (1) to act as a drag reducer. It is pear shaped and covers the centre of the face, or has two similar, smaller shapes at the edges. It is simple to fit and does not increase the load unduly, while considerably reducing the fuel consumption. The drag reducer can be assembly from bolt together plastic shapes, which are easily stored when stacked. The shape can also be obtained by an inflatable chamber strapped to the face of the container, and coupled to the lorry air system.

Pilot operated servomotor output regulator - has adjustable throttle downstream of reduction valve in return pipe

Abstract: The equipment regulates the output of a servomotor supplied from an external source, having a reducer valve in the return pipe. This is moved in one direction by a calibrated spring, and in the other by a pilot pressure in a first pressure chamber. After the reducer valve in the return pipe is an adjustable throttle. The pilot pressure is derived from between the reducer valve and the first throttle. A second throttle can be fitted in the supply pipe, also adjustable and coupled to the first one. The reducer valve is thrust in the same direction as by the spring by the pressure in a second chamber.