摘要 |
<p>There are several housings (1-3) set side-by-side. Each housing has an actuating assembly (11,21,31) with a lever and a handgrip (12) which gives a visual indication of the position of the actuating assembly. Display bars may give an indication ON (14) and OFF (13) according to the position of the lever. The lever may move in arcuate guides.</p> |