Abstract: A control system for a stand-alone electrical generator driven by a prime mover such as a wind turbine in which switches are operable in response to changes in the frequency of the generator output to change the load imposed on the generator by resistor means. The resistor means includes domestic resistive heaters and dump resistors, the switches for the former turning "on" at frequencies lower than those at which the latter turn "on". The frequencies at which the several switches in a given consumer's premises switch "on" are interlaced with the frequencies of the switches in other premises so as to avoid discrimination between consumers. The output frequency is thus kept relatively constant despite changes in wind speed.

Abstract: Flow control of diluted polymer solutions is effected by utilizing positive-displacement flow devices such as gear pumps to withdraw flow energy in the form of shaft work. Control is obtained by varying the nature and amount of shaft work withdrawn, such as by operation of an electrical generating system, and the work so created may be used to provide operating power to a control system.

Abstract: Airfoils (32) are secured to the frame (26) of a vertical axis windmill (20) to provide vertical lift to a rotatable vertical shaft (22) and to armatures (54) of electrical generators (50), thereby eliminating friction between each armature (54) and its end bearing (58) as well as between the vertical shaft (22) and its end bearing (68). An indicator (180) provides an indication that the generators (50) of the windmill (20) are generating an alternating electrical current having at least a predetermined voltage magnitude.

Abstract: An elevator drive motor 1 is normally energized from an AC power source 8 via an AC-DC converter 4 and a DC-AC inverter 3. When the power source fails the elevator is braked and the inverter is supplied from an emergency battery 11 to access the nearest floor for passenger discharge. If a fault occurs in the inverter it is disconnected from the motor by opening a switch contact 15a, and the closing of a further contact 15b enables the converter to energize the motor in a "reverse function" mode from the battery.

Abstract: A gasoline engine is equipped with an auxiliary driven wheel selectively engageable with a driving wheel on the shaft of an electric motor mounted for movement relative to the gasoline engine and operable from a remote point. A compact housing enables use of the invention on existing equipment, such as a lawnmower, or installation as original equipment at the time of manufacture.

Abstract: Proximity detector circuitry of particular value in controlling the operation of elevator car doors. Sensors are set in the edge of the door. The outputs of the sensors are fed to one or more differential amplifiers which produce outputs dependent on the sensors. One such output may be compared in a further differential amplifier with its previous output slightly delayed in time and the results of the comparison used to actuate a door closing/opening control circuit. In addition large outputs arising from major differences in the sensors output may be fed (suitably attenuated) to the closing/opening control circuit.

Abstract: To permit manufacture of starter components with substantial tolerance, while maintaining the axial play of the armature of the starter within tight tolerances, and permit adjustment of the tolerance of the axial play after assembly of the starter component together, an end face (33) of the shaft (4) projects beyond the respective end bearing, which is retained a housing projecting beyond the bearing by the distance of an adjustment plug (29) slightly smaller than the longest shaft--in the light of tolerances--of the starter. An axial play compensation spacer in form of a washer or disc (FIG. 2--35), a ring (FIG. 3--35a) or a centrally held ball (FIG. 4--35b) is placed between the end face (36) of the plug and the end face (33) of the shaft, the plug being formed with an abutment surface (31) which engages an engagement surface (32) at the outside of the housing adjacent the bearing.

Abstract: An elevator operating system includes an abnormality detector for detecting an abnormal door opening of an elevator car, a response limiting circuit which is responsive to the detection of the abnormal door opening to limit the response to car calls and floor calls for the elevator car, a re-execution circuit for re-executing the door opening of the elevator car detected as being abnormal, and a releasing circuit for releasing the limitation of the response to the car and floor calls in response to no detection of the abnormal door opening during its re-execution.

Abstract: A starter motor housing comprising a tubular housing formed by an annular wall having a thickened wall portion adjacent the stator winding of the starter motor. The stator cores abut against and are secured to the inner periphery of the thickened wall portion to increase the flux path and, thus, the effective flux energy produced by the stator windings. However, the thickened wall portion is disposed intermediate radially reduced wall end portions to reduce the weight and size of the motor housing. Preferably, the tubular housing is an iron casting.

Abstract: A variable-voltage variable-frequency elevator control apparatus is disclosed in which a circuit for the consumption of regenerated power produced during regenerative braking is provided on the DC side of the apparatus rather than on the AC side. During regenerative braking with an emergency generating unit in operation, regenerated power is consumed by the consumption circuit on the DC side of the circuit and is prevented from being returned to the emergency generating unit. This prevents the production of voltage notches commonly produced during regenerative braking by thyristor commutation in conventional circuits. Because no voltage notches are produced, a reduction in the size of the emergency generating unit can be achieved. In addition, since it consumes DC power rather than 3-phase AC power, the consumption circuit requires fewer elements than in conventional control apparatuses.

Abstract: This invention relates to an apparatus for automatically starting and stopping an engine comprising a clutch switch for detecting that the depression of a clutch pedal of a vehicle is completely performed, a neutral switch for detecting the neutral position of a transmission, a vehicle speed sensor for generating a travel signal by detecting the travel of the vehicle, condition detecting means for detecting the operation maintaining condition of the engine, and control means for automatically stopping the engine by interrupting the energization of an ignition circuit when receiving a detection signal of the neutral switch and not receiving the detection signals of the vehicle speed sensor and the condition detecting means and automatically starting the engine by energizing the ignition circuit and a starter when receiving a detection signal of the clutch switch and not receiving the detection signals of the neutral switch, said vehicle speed sensor and the condition detecting means.

Abstract: An elevator speed control system permitting rotation of the motor with short-circuited rotor at full speed, wherein the thyristors controlling said motor permit the motor to rotate at full speed and when the elevator is running in the lighter direction, operation of the motor as generator at an over-synchronous speed. The system comprises a control unit assembled of components known in themselves in the art by which the instruction value is increased considerably past the actual value, whereby the motor with short-circuited rotor is left to rotate at full speed, and that on commencing retardation the instruction value is dropped directly to be consistent with the actual value.

Abstract: A transportation system including a group of elevator cars under the control of a group supervisory dispatcher function, and people mover apparatus arranged to serve the group of elevator cars. The group supervisory dispatcher function includes call assigning control which has different selectable strategies for serving different types of elevator service requirements, including at least one travel direction oriented strategy for expediting elevator service in a predetermined travel direction. The people mover apparatus provides signals responsive to loading and travel direction for use by the dispatcher function, enabling proper strategies to be selected without waiting for actual elevator traffic to trigger such selections.

Abstract: Disclosed is an automatic door actuator which comprises arithmetic unit for calculating a weight of a door, a distance of movement of the door and braking points of the door through learn control of door actuation which is effected once every time a power supply switch is turned on and irrespective of the on-off condition of a normal door actuation start switch; first memory for storing results of calculation by the arithmetic unit; second memory for previously storing various phase angles for starting operation, for deceleration braking operation and for predetermined low velocity control, corresponding to various weights of the door; whereby the control unit is responsive to the first memory to read out from the second memory the phase angles for starting operation, for deceleration braking operation and for predetermined low velocity control corresponding to the actual weight of the door determined in the learn control to thereby supply a trigger signal to semiconductor controlled rectifying elements in ac

Abstract: An energy storage device comprising three flywheels mounted mutually perpendicular on said shafts in three dimensions within a rigid enclosure. The shafts are interconnected within the enclosure through a bevel gear arrangement in which the motion of one flywheel is imparted to the other flywheels. The shafts pass through the walls of the enclosure through a bearing arrangement.

Abstract: A motor driving circuit in which the opposite ends of the motor driving coils of a video tape recorder (VTR) capstan motor are shorted by a group of switching elements when a control input voltage generated from a rotation detection/oscillator is in a predetermined range.

Abstract: A method and apparatus for making available an electrical current, which comprises placing a conductive airfoil in a moving air mass, sinking a conductive element subsurface, and insulating the airfoil from the conductive element and producing an electrical potential between the airfoil and the element in a moving air mass.

Abstract: In this drive control the regulating circuits for the rotational speed of a drive motor and of an eddy current brake are matched in their static and in their dynamic behavior so that a common regulator may be used for both regulating circuits. The matching is achieved by interposing a current regulation circuit for regulating the excitation current of the eddy current brake to the rotational speed regulating circuit. The output of the common regulator is supplied via a linearization member as a reference value to a regulator in the current regulation circuit during the deceleration phase. During the acceleration phase the output of the common regulator is supplied to a matching element matching the variation of the torque to the variation of the torque during the deceleration phase with respect to time. The output of the matching element is connected to the control member of the drive motor via a linearization member. By means of the linearization members the characteristics of a d.c.

Abstract: Described is a control system for an elevator wherein the distance between the current car position and the target position of a floor at which the car is to be halted is detected on the basis of a car position signal computed from car displacements and a preliminarily stored floor position signal for controlling the car speed. According to the present invention, the contents of a read-only floor memory concerning the respective floor positions stated in the building plan or schedule are transferred at the outset into a transient read/write floor memory. In the course of the subsequent elevator car travel, the data in said transient floor memory is corrected through the learning of the contents of the car position signal computed during car displacements. In this manner, the car may be controlled to arrive at a target floor accurately despite occasional difference between the actual floor position and the design floor positions.

Abstract: A control system for synchronizing a combination press line comprised of a transfer press and a double-action press.The transfer press is set as a master press and the double-action press as a slave press following the transfer press in operation.The transfer and double-action press each has a synchro coupled to respective drive shafts for detecting an angular position of each press. A comparator is provided for comparing signals from both synchros and generating a signal corresponding to a difference between signals from both synchros. The output signal from the comparator is fed only to a motor for the double-action press for controlling the speed of the motor, thus enabling the double-action press to follow the transfer press in operation.