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7055283 |
Control system for door opener
A control system for switching an electric operation to a manual operation of a door opener comprises: a housing 11 , including a power unit 12 driving a shaft 120 electrically and...
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6962093 |
Noise reduction structure for power take-off unit gear assembly
A noise reduction structure is provided for use with a meshing gear assembly, such as in a power take-off unit for selectively providing power to one or more rotatably driven accessories. The...
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6811001 |
Electromagnetic brake
An electromagnetic brake, interposed between a stationary housing and a rotational member, includes a multi-plate brake mechanism, a ring-like core member fixed within the housing, an exciting coil...
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6200426 |
Paper machine with a controllable electro-magnetic clutch
A paper-making machine or an off-line coater includes a rotatable drive unit and a rotatable driven element in the form of a roll, cylinder, pulley and/or gear. A clutch includes a rotatable input...
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6199322 |
Method and apparatus for automatically driving an open/close body
At the time of changing over an open/close body from a manual operation to an automatic operation, a reliable clutch connection is established in a power transmission system between a drive source...
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6099430 |
Clutching actuator for clutch control system in a drive line apparatus
A clutched actuator for use in a transfer case is disclosed which may be used in conjunction with electronic traction control systems and anti-lock braking systems where the clutched actuator...
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5971121 |
Mag stop clutch with center pole
An improved brake/clutch unit for use in a riding lawnmower or another vehicle is provided. The unit includes a rotor assembly disposed radially outwardly of a longitudinally extending input shaft,...
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5952750 |
Electromagnetic spring clutch with non-magnetic rotating members
A compact, inexpensive electromagnetic spring clutch includes forming supporting bearing surfaces made of synthetic resin rotary members, in a magnetic excitor. Cylindrical magnetic pole parts are...
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5620077 |
Fail-safe brake actuation system
The actuator uses an electric motor to drive a recirculating ball screw thread connection, to hold a brake-actuation spring at bay. After the spring has been compressed to the brakes-off position,...
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5573091 |
Electrically powered or manually driven clutch and brake assembly for electric winch
Electrically powered or manually driven clutch and brake mechanism for an electric wince cooperate with a transmission mechanism. The clutch mechanism is provided with a thrust bearing on a clutch...
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5441131 |
Asymmetry/overspeed brake unit
An asymmetry/overspeed brake unit designed to stop the rotation of a control surface and its attending drive set and attachment hardware in response to a mechanical overspeed condition or an...
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5119918 |
Electromagnetic clutch with permanent magnet brake
Energization of an electric coil produces flux for attracting an armature of a clutch into engagement with a rotor in order to couple an input shaft to an output pulley. When the coil is...
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5050711 |
Electromagnetic brake apparatus
A stationary brake member (45) which is used in an electromagnetic brake apparatus, comprises a first press-worked plate (45h) and a second press-worked plate (45m) which are laminated to each...
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5024638 |
Actuator for a frictional engaging device
An actuator for frictional engaging devices is controlled by electric signals from a control device and is disposed in a power transmission device. The actuator includes a torque generating...
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4974711 |
Brake and clutch control
A clutch and brake control circuit includes first and second relays connected to an interlock circuit and to the brake and clutch coils on a vehicle. The relays are interconnected with the coils so...
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4964503 |
Manipulator using a single motor driving plural flexible shafts
A manipulator features the use of a single motor and a plurality of flexible cables which are interconnected with the motor via a plurality of clutches which can be selectively engaged and...
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4878568 |
Electromagnetic clutch/brake assembly
Aligned shafts are coupled by a clutch and brake assembly that includes a single electromagnetic coil and single return spring. The braking torque is reacted through the field structure frame for...
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4870875 |
Driving device for auxiliary device
A driving device for an auxiliary device of an engine, comprises a carrier to be rotated by a crankshaft of the engine, a plurality of planet gears supported by shafts formed on the carrier, an...
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4844223 |
Arrangement for braking a gearbox component
A change speed gearbox for a combine or the like has a main clutch on its input shaft and a shift collar shiftable into alternate positions from a neutral position to establish different driving...
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4807727 |
Method and apparatus for securing a torque applying device
Method and apparatus for securing an electric brake/clutch (14) against rotation relative to a stationary member (10). A preferred system includes an anti-rotation lever (26) attached to and...
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4734604 |
Friction braking system and apparatus for appliance induction motor drive
A friction braking system located entirely inside an induction motor of an appliance quickly stops rotation of the rotor in the appliance motor, for example such as a food processor, whenever the...
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4676859 |
Labeling apparatus
Apparatus for applying pressure sensitive labels to products on a product line peels the labels from a web of release paper and applies them to the products, when the latter are detected to be in a...
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4669295 |
Method of manufacturing a magnetic rotatable member for an electromagnetic clutch
An electromagnetic clutch includes a first rotatable member of magnetic material having an axial end surface and a hollow portion in which an annular electromagnetic device is disposed in a...
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4570767 |
Electromagnetic clutch/brake device
The disclosure describes an electromagnetic clutch/brake device which prevents undesired vibration of a rotary brake mounted on an ouput shaft so as to be slidable in its axial direction. For this...
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4567972 |
Clutch wear detector, adjustment and indicator system
A clutch system providing a simplified clutch adjustment which also gives an indication of how much clutch facing remains so that it is known when a clutch face needs replacement. The system mounts...
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4556199 |
Electric winch apparatus
A drum winch apparatus having an alternating current motor and direct current operable clutch and brake coils together with a control circuit for energizing these member is disclosed. The control...
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4553569 |
Control method of stopping a loom at a predetermined position thereof
A method of stopping a loom, whose operation is controlled by a microcomputer, at a predetermined position thereof is disclosed herein. In view of the phenomenon that the load on loom operation is...
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4538717 |
Control apparatus for a step drive
The invention relates to a step drive assembly which includes a rotatable operating unit for operating a tool or knife or the like. The assembly has a change-over clutch for selectively connecting...
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4494203 |
Method for correcting the deviation of a predetermined stop position in a loom
A method positioning control is disclosed, to stop mechanisms of a loom at predetermined positions when stopping the loom operation, in which the loom is directly controlled by a microcomputer. In...
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4484495 |
Differential drive mechanism
A differential drive mechanism (10) includes a driving member (12) and a driven member (16). A planetary gearset (64) drivingly connects the driving member (12) and driven member (16) to drive the...
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4453774 |
Driving arrangement for longwall mining machines
The invention is particularly adapted for use with a longwall mining machine of the type having a rack extending along a track for the mining machine, a gear wheel on the machine engageable with...
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4440277 |
Implement clutch and brake control
An implement clutch and brake control for portable, engine-operated movable implement tools is described. The implement tool is controlled by a brake and clutch assembly operably connected between...
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4387794 |
Single-surface electromagnetically operated clutch/brake unit
An electromagnetic single-surface clutch/brake combination, especially for textile machinery, in which a rotor assembly is locked to the shaft end encloses the magnetic body carrying the coils so...
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4300082 |
Speed-regulated positioning drive
The drive shaft of a motor can be coupled to an output shaft by an electromagnetically activated friction clutch. The output shaft can be braked by an electromagnetically activated friction brake....
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4298107 |
Brake system for a textile machine
The braking system for the textile machine is provided with a multiplicity of brake elements which are individually controlled via a common control means. Each brake has a different braking...
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4274522 |
Low speed adaptor
A low speed adaptor for use in a sewing machine driven by a main motor, particularly to one which employs a main transmission belt and an auxiliary transmission belt to change the speed of the...
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4269293 |
Engine accessory disconnect
A disconnect for disengaging an accessory rotor from a driving engine and quickly decelerating the accessory rotor to a stop.
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4250983 |
Clutch apparatus and control
A variable speed drive mounted within a housing includes clutch means of the disc type operatively connected between input and output shafts and an interior support coupling member. The support...
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4250984 |
Electromotor driven regulating arrangement, especially for regulating the speed of a motor vehicle
An electromotor driven regulating arrangement, especially for regulating the speed of a motor vehicle, comprises an input shaft rotatable in one and in the opposite direction by a reversible...
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4241817 |
Drive mechanism for machines, having in particular a great moment of inertia
An apparatus and a method for controlling the braking operation of a machine having a large moment of inertia. The machine is driven by a motor through a coupling device. The control circuitry...
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4223775 |
Driving and braking apparatus
A driving and braking apparatus usable with a load such, for example, as an uphill belt conveyor. The apparatus includes a motor for exerting driving torque on the load, a first control device for...
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4183312 |
Speed-regulated sewing machine
A sewing machine has a main drive shaft to which is drivingly coupled the output member of a coupling motor unit, the latter including an electric motor having a constantly rotating output shaft, a...
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4176735 |
High-speed apparatus for off-winding thread
An apparatus for off-winding thread which comprises a driving shaft, a drive means for rotating the driving shaft, a driven shaft, an electrically operated clutch interconnecting said driven and...
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4040508 |
Control circuit for controlling the shaft speed of a motor having clutch and brake devices
A control circuit for controlling the shaft speed of a motor having clutch and brake devices comprises a speed detector for detecting the actual rotating speed of the motor and generating a first...
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4040304 |
Clutch motor for use in resettable fire damper
An improved clutch is described for use in a smoke and fire protection system comprising a pulley which in the normal operating position is engaged by a torque transmitting means so that the pulley...
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4023659 |
Dual voltage electro-mechanical clutch brake control system
A control system is disclosed for providing a dual voltage electrical power supply for a variable load such as an electro-mechanical clutch-brake power transmitter of the type used for instance for...
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4022307 |
Device for driving a transfer beam
The invention relates to a device for driving a transfer beam for handling relatively heavy loads, comprising in the case of a beam having a rack rigidly associated therewith. Said device consists...
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3945476 |
Motor construction
A stator is mounted in a housing, and a rotor is rotatable with reference to the stator and rotates with a motor shaft. A flywheel is mounted on and rotatable with the motor shaft. An output shaft...
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3921770 |
Arrangement for driving two output shafts
The arrangement includes a drive motor, a first output shaft, and a second output shaft. First and second clutches are each operative when activated for establishing torque-transmitting engagement...
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3828901 |
ELECTRIC COUPLING CONTROL MEANS
An electrical coupling control system is disclosed for a multiple spindle automatic machine tool which has an indexable spindle carrier with a plurality of rotatable spindles. An electrical clutch...
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