| 摘要 |
<p>1276471 Door operating devices E BODE 19 April 1971 [30 Jan 1970] 20218/71 Heading E2M A door operating device comprises a piston 6 and cylinder 7, pnuematically operated, or connected by a pivot 5 to a link 4 having an end member 3 telescopically arranged in it and pivoted to a door 1, this door being slideable along a rail 9. The rail 9 may be curved to swing the door outwardly as it opens.</p> |
