Abstract: A starter protector for a starter of an engine has a switching circuit which turns the starter off, and a calculating circuit which measures the frequency of ripples which are superimposed on either the terminal voltage or the terminal current of the starter and controls the switching circuit so as to turn off the starter when the frequency exceeds a prescribed value. In another form of the invention, a calculating circuit counts the number of ripples which are superimposed on the terminal voltage or terminal current of the starter and controls the switching circuit to turn off the starter when the number of ripples exceeds a prescribed value.

Abstract: A coaxial engine starter comprises an electric motor having a tubular armature rotary shaft and an output rotary shaft disposed at the front end of the electric motor and having at one end a pinion capable of engaging and disengaging an engine ring gear and axially slidably inserted into an inner bore of the armature rotary shaft at the other end. A planetary speed reduction gear including a sun gear formed around the outer periphery of the front end of the armature rotary shaft and a plurality of planetary gears meshing with the sun gear for reducing rotational speed of the armature rotary shaft is provided and an over-running clutch fitted on the output rotary shaft for transmitting the rotation of the armature rotary shaft transmitted through the planetary speed reduction gear to the output rotary shaft, the over-running clutch having a clutch inner member including a front end surface which abuts against a rear end surface of the pinion when output rotary shaft is moved rearward.

Abstract: A safety device for an elevator which has a converter for converting a 3-phase A.C. power source into a D.C. power source, a control circuit for the elevator employing as a power source the D.C. power source outputted from the converter, a level converter for converting the voltage of the D.C. power source outputted from the converter into a logic level, and defective phase detecting means for detecting the defective phase of the 3-phase A.C. power source by dividing the output signal of the level converter in a time division manner.

Abstract: An engine starter apparatus comprising an electric source, a starter motor connected to the electric source, a solenoid switch connected between the electric source and the starter motor, and a supplemental fuel supplier connected in parallel to the starter motor for supplying additional fuel to the engine to be started. The solenoid switch is movable between a closed position in which the electric source is connected to the starter motor and an open position in which the electric source is disconnected from the starter motor. The supplemental fuel supplier is actuated when the starter motor is energized. A short-circuiting additional switch operated by the solenoid switch is connected between the starter motor and the ground for short circuiting the starter motor when the solenoid switch is in the open position, ensuring that the supplemental fuel supplier is energized only while the starter motor is energized.

Abstract: A procedure for the tuning of a position controller of an elevator is disclosed wherein an artificial excitation signal is input to the elevator drive system, the response corresponding to the excitation is measured, a mathematical model of the elevator system is calculated, the behavior of the elevator system is simulated, control parameter values minimizing the difference between the target position values and the actual position values are found, individual differences in the vicinity of the ultimate target position are weighted by a large factor, the position control parameter values are reset to optimized values, a real excitation signal is input to the elevator drive system, the model parameters are calculated again, and the above sequence of operations is repeated until the model parameter values and the control parameter values converge.

Abstract: A diagnostic display system for indicating the status of elevator system operating conditions develops signals representing each operating condition and detects when a car is delayed in responding to a request for service. Signals representing each operating condition are stored when a delayed car response is detected so that the status of the operating conditions as they were at the time of delayed car response can be displayed at a later time.

Abstract: A revolving power tower comprising a fixed tower and a revolving tower, to make use of wind power as main power source and the heat energy of the sun as supplementary power source, said revolving tower being to induce the wind from all directions to run into the present power tower; when the outer heat-absorbing plates and the bottom of the tower being heated by the scorching sun, the inner temperature being to rise; when the wind coming from outside the heat-absorbing plates being to introduce hot air current into the flexible air valve to blow toward the upper-right portion of the non-weight revolving tower to push the blades of the revolving tower to rotate rightward, (at the same time, the bottom air turbine and the electric generator being to start operating) and then, the air current running into the inner portion of the tower, the wind driven by the blades of the air turbine being to circle round and round and to rush out of the tower from the top to form an artificial whirlwind; like natural tornade,

Abstract: A hydraulic elevator system 10 having an elevator car 12 in which car velocity V and car position L are determined by detecting the quantity Q of hydraulic fluid transferred between a hydraulic cylinder and a hydraulic fluid reservoir. The car velocity V is directly proportional to Q and the car position L is directly proportional to the integral of Q. The car velocity V, or quantity Q, is compared with a desired velocity pattern, or desired flow rate pattern, PG, and the difference is a control signal C which is used to control the quantity Q. The car position L may also be used to determine the distance-to-go to a target floor, which may be used to initiate slowdown and/or to calculate all, or selected portions of, the desired pattern PG.

Abstract: Apparatus is connected by way of a serial communication link to at least one computer-based elevator controller in order to monitor the diagnostic output of each connected controller. The diagnostic output of a controller is determined in a manner by which the elevator system is modeled as normally operating sequentially from state to state in a closed loop sequence of linked operating states. Any deviations from this sequence generate diagnostic messages that are communicated from the controller to the monitoring apparatus. Also communicated are the last to occur of a plurality of parameter signal state changes. The monitoring apparatus processes the diagnostic signals for visual and/or hard copy display to interested elevator personnel in a meaningful way. Further, the monitoring apparatus provides a plurality of signals to the elevator controller indicative of corresponding reference standards that the elevator controller utilizes in determining the occurrence of certain elevator event conditions.

Abstract: A method and apparatus for the control of the dispatch of elevator cars from the main floor are implemented in a plurality of algorithms performed by a process computer. A first algorithm for an elevator group receives data representing the measured arriving and departing building filling passenger traffic from sensors. The first algorithm determines the traffic requirements and the actual departure load of the elevator group from this data and various constants, and determines the transport capacity of the elevator group. The transport capacity is assigned to second algorithms associated with the elevator cars and corresponding to the nominal load of each respective car. Based upon the assigned transport capacity and the round trip time of the respective elevator car, the second algorithm calculates the nominal departure load. Dependent on the nominal departure load and the actual departure load, the second algorithm calculates a corrected departure load with which the elevator car should be loaded.

Abstract: A starter motor which comprises a housing, an electric motor having an output rotary shaft, a pinion shift cylinder driven by the output rotary shaft and having a pinion for driving an engine to be started, the pinion shift cylinder having a sliding support surface exposed to the interior of the housing. The housing supports a support bearing which has a slinding surface in engagement with the sliding support surface of the pinion shift cylinder for slidably and rotatably supporting it. The starter motor also comprises a cylindrical cover for lovering the sliding support surface of the pinion shift cylinder against any foreign matter.

Abstract: An elevator control apparatus comprises a torque control device for calculating a torque command for a motor for hoisting an elevator cage, a brake which operates in response to a braking command so as to restrain the motor, a brake abnormality detector adapted to operate when a difference between a maximum value and a minimum value of the torque command is less than a predetermined value, and a brake abnormality output circuit which delivers a predetermined signal when an inferior release of the brake has been detected by the operation of the brake abnormality detector.

Abstract: A traction elevator includes a safety mechanism for preventing unintended motion of the car. A trigger, when armed, is positioned in the path of bosses on the drive sheave or another sheave, such that any unintended rotation of the sheave causes actuation of the trigger and the consequent tripping of an emergency brake. Preferably, the trigger is armed whenever the car is stopped at a landing, and is also selectively armed responsive to elevator overspeed detection.

Abstract: A coaxial type starter with an overrunning clutch device has a clutch inner member which is provided with a cylindrical portion formed integrally therewith and extended forwardly; is rotatably supported by first and second bearings spaced apart in the axial direction so that they bear the cylindrical portion; and has a helical spline at the inner circumferential surface so as to be engaged with a helical spline formed at the outer circumferential surface of an output rotary shaft inserted in the clutch inner member so that a rotating force by the armature rotary shaft is transmitted to the output shaft.

Abstract: A coaxial type starter device comprises a d.c. motor, a pinion provided at the front end of an armature rotary shaft of the d.c. motor and an output rotary shaft arranged in alignment with the armature rotary shaft so as to be movable in its axial direction so that a rotating force of the armature rotary shaft is transmitted to the output rotary shaft through a planet gear speed-reducing device and an overrunning clutch device, wherein a carrier for supporting each planet gear wheel has a cylindrical portion at its front end and the cylindrical portion is fitted to the outer circumference of an clutch outer member of the overrunning clutch device so as to cause a relative sliding movement in their circumferential directions when a predetermined torque is produced.

Abstract: A starting system for an aircraft propulsion engine. An electrical motor (62 or 122) is mounted within a case (14) in which first and second hydraulic units (102, 104) are operated as part of a constant speed drive transmission. The electric motor accelerates a motor-generator set (24) to a velocity near the synchronous speed. The motor-generator set is coupled to the drive shaft (20) by operation of the hydraulic units as a variable torque link. The electric motor functions both as a heat source of hydraulic fluid contained within the hydraulic pump and motor case during extreme low temperature conditions at which point the starting torque of the motor is initially insufficient to cause rotation of the output shaft and to further accelerate the motor-generator set up to a rotational velocity at which the motor-generator set may be operated synchronously at which the motor-generator set is coupled to the drive shaft (120) by operation of the hydraulic units as a variable torque link to rotate the engine.

Abstract: A heat-and-electricity supply system in which steam from a steam generator is utilized to supply an electric output and a heat output such a system includes: a steam turbine driven by the steam generated in the steam generator; a clutch with reduction gear, connected to a shaft of the steam turbine; a power generator for providing the electric output, connected to the clutch with a reduction gear; a clutch with a speed increasing gear, connected to a shaft of the power generator as occasion demands; a compressor connected to the clutch with speed increasing gear; a heat-side load utilizing a cooling medium or a heating medium supplied from the compressor.

Abstract: An electronic starting motor control having low voltage protection. The starting motor has a solenoid coil which when energized causes solenoid contacts to be closed to energize the motor and to move a pinion into mesh with the ring gear of an engine to be cranked. A plurality of parallel connected field effect transistors connect and disconnect the solenoid coil to and from system direct voltage. When system voltage is below a predetermined value the field effect transistors are turned off and are maintained turned off until a start switch is opened. The system will not turn off the field effect transistors when short term voltages occur that go below the predetermined value. Various other circuits are disclosed for turning the field effect transistors on and off.

Abstract: A coaxial engine starter in which a solenoid switch is disposed behind an electric motor, a planetary speed reduction gear is disposed in front of the electric motor, and an ouptut rotary shaft is driven by the electric motor through the planetary speed reduction gear, a housing to which a bearing for receiving radial loads from the output rotary shaft is secured is integrally formed by a synthetic resin with an inner gear of the planetary speed reduction gear. A metallic flange for attaching the starter to an engine may be mounted to the housing by an electrically conductive securing member, and an electrical conductor for electrically connecting the flange to a motor yoke through the securing member may also be provided.

Abstract: An electric starting system for controlling an electric starter that has a solenoid for shifting a pinion and for closing solenoid contacts to energize a cranking motor that drives the pinion. The solenoid has a single coil connected in series with a plurality of parallel connected field effect transistors. The circuit that energizes the solenoid coil through the field effect transistors is in parallel with the solenoid contacts and the cranking motor. The gates of the transistors are connected to an oscillator which causes the transistors to be repeatedly turned on and off at a predetermined frequency and duty cycle. Pulses of current are supplied to the solenoid coil which are sufficient to maintain the pinion meshed with the ring gear of an engine and to maintain said solenoid contacts closed without overheating the coil.