| 摘要 |
<p>PURPOSE:To measure the extent of large movements accurately without any speed reducing mechanism of a large reduction ratio in a measuring device for extent of movements by repeating the operation of resetting a rotating disc which rotates in accordance with movements to an initial position at the point of the time when said disc makes required rotation. CONSTITUTION:The rate of feeding a film in a rotary processor camera which photographs the image of an original 1 while moving the original and a film F is transmitted as revolutions of a capstan roller 11 via gears 30, 32-34 to a cam gear 35. When the film is fed by the 1st prescribed rate, a switch 45 is actuated by a cam 35a, by which a solenoid 37 is operated to rotate a movable arm 31. Since the gear 34 is detached from the gear 35 by said arm, the gear 35 is returned to the initial position by means of a spring 40. Then the solenoid is disabled and the gear begins to rotate again. Further when the film is transferred by the 2nd required rate, the 2nd cam 35b actuates a switch 46, and the similar operations are accomplished.</p> |
