Abstract: A handle assembly for an x-ray examination apparatus for permitting a technician to position the apparatus above a patient with the aid of a support motor has a grip connected to the apparatus by two support elements, each of the support elements having a defined weak point, such as a segment of reduced thickness, and a plurality of control elements for operating the support motor in response to stresses experienced by the weak point caused by pulling on the grip. The control elements are connected between the support elements and the apparatus, spanning each weak point. Two control elements, disposed at right angles to each other, may be utilized for each weak point.

Abstract: This invention discloses an electric motor comprising a stator, a rotor disposed concentrically within the stator, a drive shaft rotatably supporting the rotor with a circular gap between the stator and rotor and an output shaft connected to the drive shaft and sharing the same rotating axis with the drive shaft, wherein the improvement is characterized in that the electric motor further includes a resilient connecting member which connects the drive shaft and the output shaft and means which detects the torsion of the resilient connecting member produced during the transmission of the torque from the rotor to the output shaft and measures the transmission torque from the detected torsion.

Abstract: A speed controlling arrangement for an electric motor is provided with a pneumatic foot controller which includes a bulb that is opened to the atmosphere between operative periods to equalize pressure in both the bulb and a transducer, but is closed when foot pressure is applied to the bulb to actuate the transducer.

Abstract: A system for evaluating whether a work-performing robot can perform a series of programmed motions is disclosed which includes means for continuously comparing the velocity of the various links of a robot simulator, which is manually moved through the sequence of motions to be programmed, against predetermined velocity limits associated with the corresponding links of the work-performing robot which will reproduce the programmed steps, and providing humanly perceptible alarm indications uniquely identifiable with the various robot links when the motions manually programmed on the robot simulator exceed the velocity limits of the work-performing robot. Additionally, the individual velocities of the various robot simulator links are summed, and the sum continuously compared against the power limit of the hydraulic pump driving the link actuators of the work-performing robot.

Abstract: An apparatus attached to a motor driven manipulating instrument for detecting and identifying specific forces employed in moving the instrument along a predetermined spatial track. The apparatus includes a center portion rigidly attached to the manipulating instrument and a sleeve member surrounding the center portion. A plurality of separate, flexible blades join the sleeve and center portions to each other, with a separate transducer fixedly attached to each flexible blade and capable of detecting bending forces employed to move the sleeve and attached instrument. The transducers generate output signals indicative of the magnitude and direction of the forces, which signals are used for establishing a program for controlling the actuation of the various motors to allow the instrument to repeatedly execute the course set forth in the program.

Abstract: A hybrid stepping motor unit includes a stepper-type primary motor and a secondary motor. The rotor shafts of the stepper-type primary motor and the secondary motor are connected to a common output shaft. The stepper-type primary motor is energized in response to an electrical command signal from an external source, such as a computer. When the stepper-type primary motor is energized, the stepper-type primary motor produces torque and attempts to drive the load combination of the interconnected rotor shafts, the common output shaft, and any mechanical load on the common output shaft, such as a machine tool component. This produces a reaction torque on the stepper-type primary motor. A transducer converts the reaction torque into an electrical control signal. The secondary motor is energized in response to the electrical control signal from the transducer.

Abstract: The invention is a device for controlling and adjusting the tension in the cable of mooring winches or cranes by measuring the torque exerted on a speed reducer having at least one intermediate gear-train, constituted of a pinion and a larger toothed-wheel integrally connected together. The device is characterized in that this intermediate gear-train rotates freely on two bearings supported by a stationary shaft concentric with the intermediate set, which stationary shaft is carried by two fixed supports located outside the bearings. The shaft also carries at least one pair of stress gauges secured between the bearings on two diametrically opposed generatrices of the shaft which are located in the same axial plane as the resultant compression force exerted on both bearings by the two tangential forces applied on the meshing teeth of the pinion and of the wheel of the intermediate gear-train.

Abstract: The servo drive according to the invention includes a force transducer which is disposed so as to sense all the forces which act on the image-forming section (the weight of the section, the manual force of the user, frictional forces and acceleration forces). On the signal from the transducer there is superposed a signal which corresponds to the weight of said section and to the speed variations dn/dt, i.e., to the acceleration forces. Thus the influence of these forces on the output signal is compensated for. The resulting signal serves as the desired value for a speed or acceleration control.

Abstract: An apparatus attached to a motor driven manipulating instrument for detecting and identifying specific forces employed in moving the instrument along a predetermined spatial track. The apparatus includes a center portion rigidly attached to the manipulating instrument and a sleeve member surrounding the center portion. A plurality of separate, flexible blades join the sleeve and center portions to each other, with a separate transducer fixedly attached to each flexible blade and capable of detecting bending forces employed to move the sleeve and attached instrument. The transducers generate output signals indicative of the magnitude and direction of the forces, which signals are used for establishing a program for controlling the actuation of the various motors to allow the instrument to repeatedly execute the course set forth in the program.