Abstract: A double blank detector apparatus and method of operation determines the condition of when one blank, no blanks or more than two blanks are about to be fed into a press. An indicator bar advances relative to the number of blank sheets of material being detected and interrupts an infra-red light beam when only blank of material has been detected. Under this preferred condition, a signal is produced which allows a press located adjacent to the double blank detector to continue its stamping operation. Alternatively, if either a no blank or a double blank condition is sensed, then the indicator bar advances accordingly, thus not interrupting the infra-red light beam. During this condition, a signal is produced indicative of the situation thus notifying the operator that there is a problem and stopping the press from cycling.

Abstract: The present invention provides a sheet supply apparatus with a supply device for supplying a sheet, a drive motor for driving the supply device, a power transmission switching mechanism for permitting or inhibiting transmission of power from the drive motor to the supply device, and control means for controlling an operation of the power transmission switching mechanism. The power transmission switching mechanism is controlled in such a manner that the transmission of power from the drive motor to the supply device is inhibited when a supplying operation is stopped.

Abstract: A driven gear (3a), a gear (11a) to a rotary solenoid (15a) and an output drive gear (19a) are mounted to rotate together, preferably as one part turning on a stationary shaft (7a). The driven gear and the output drive gear have disengagement sectors (5a and 20a). Activation of the solenoid turns the driven gear into engagement with a normally turning drive gear (1a). Shortly after the sector on the output gear is cleared, and the load (27) is driven through engagement with driven gear (23a). After one cycle, the detent force of the solenoid positions the sector 5a so that engagement is terminated. Because the rotary solenoid need only move the gears 3a, 11a and 19a, the size of the load is immaterial to the physical requirements for the solenoid and its reliability of operation.

Abstract: A friction lining (5) for a device which is cooled with fluid or lubricant and is intended for transferring torque, in particular a friction clutch, synchronizing element or brake, the friction lining being fastened on a carrier body (2) in order to form a friction surface (6) and the torque being transferred to a counter-surface, is constructed from at least two different layers, and in particular from at least one porous substrate (11, 11') which is fastened on the carrier body (2) and which is constructed like a composite material from a cellulose base with synthetic fibers and filler, and from a porous friction layer (12) which is fastened on the substrate (11,11') and is made of synthetic fibers, preferably carbon, which are bonded with a thermoset resin.

Abstract: An automotive vehicle having accessories as for example cruise control, transmission torque converter lock-up control, or anti-dive suspension control, has an electrical logic circuit which is effective for applying control type signals to such accessories in response to magnitude of the force applied to the vehicular braking system by the driver; a force sensitive resistor placed in the vehicular braking system is effective to create output signals to the logic circuit which signals are employed by the logic circuit to determine when respective control type signals are to be applied to such accessories.