| 摘要 |
<p>In an automatic cassette loading machine a pancake (9) is mounted on a support hub (10) operable in rotation. A reading member (26) comprising a photoelectric cell (30) and carried by a main carriage (13) movable at right angles to the axis of the pancake is disposed at a position diametrically spaced apart from the pancake itself and is then moved close to the latter. When the peripheral edge of the pancake is intercepted by the light beam emitted by the photoelectric cell (30) the reading member (26) is moved away from the pancake and disposed so that it can intercept the passage of a closure tab (22) fastening the end of the tape (8) on the pancake taken in rotation. Then the pancake rotation is stopped when the location of the closure tab enables its being picked up by a grasping member (23) associated with the cassette loading machine. <IMAGE></p> |
