Abstract: In a method for processing a workpiece in a tool machine, a first step (Step S4) for continuously measuring a position of a tip portion of a tool attached to a main axis, a second step (Step S5) for computing a displacement amount of the position of the tip point of the tool based on a result of the measurement, a third step (Step S8) for observing a time period while the displace amount is belonged in arrange of allowable displace amount previously determined, a fourth step (Step S9) for keeping an idling operation in case that the time for which the displace amount is belonged in the range of the allowable displacement amount is shorter than a time period previously determined and intermitting the idling operation in the case that the time for which the displace amount is belonged in the range of the allowable displacement amount become the time period previously determined and a fifth step (Step S10) for starting a process with respect to the workpiece in the case that the idling operation is finished are

Abstract: A motion picture apparatus and method for intermittently advancing motion picture film by forced air. The film is initially placed into successive loops formed by closure of a rotary air valve. The loops and thus the film are advanced through the projector or camera pathway by a forced air blower which propels the successive loops through a projection pathway by opening of the rotary air valve. The film loop is metered by timing the opening and closing of the rotary air valve with the opening and closing of the shutter of the motion picture apparatus.

Abstract: A cine camera having a rotary or reciprocating shutter driven by a motor is provided with a supplementary diaphragm which cooperates with the shutter during acceleration of the motor to its rated speed to reduce the effect on the first film frame or frames of the change in exposure time occurring during the acceleration period of the motor.