| 摘要 |
Control rod (9) moves with drawer and is connected to the counting mechanism so that for every movement of the drawer the mechanical lever system is operated to step the counting mechanism by one position. The mechanism system comprises plates (21, 22) forming a slide which, with projections and spring loaded pegs operate ratchet wheels and thus the counter. The control rod (9) is coupled to the elongated bolting plate (21). This plate has evenly spaced bolts (24) which engage in corresponding grooves (23) in the grooved plate (22). The nothced plate (22) is mounted on the latter plate (22) and is provided with an upper (29) and a lower (28) notch. They are separated at a stipulated distance (b). |
