Hand control for part elements of horizontally sliding wall

摘要

The part elements travel along a guide rail fixed to the ceiling or floor. Two pulleys (1,2) are positioned on the same shaft (6). The first pulley engages with the shaft. The second pulley is always joined to the shaft by a feather key. The shaft has a through hole (10) with thread (11) at one end into which fits a screw (9) passing through the shaft. The threaded end protrudes out of the shaft and is secured by lock nuts (12).