| 摘要 |
1,121,843. Air locks. LICENTIA PATENTVERWALTUNGS G.m.b.H. 13 Oct., 1965 [15 Oct., 1964], No. 43395/65. Heading B7S. In an air lock 1 with two manually actuated doors, the first door 4 can be opened or closed by means of shaft 8 from the outside of the second door 3 and the two levers 7, 11 at the outside of the second door 3 each carry on their shafts a locking disc 9, 10 provided with a recess. Lever 7 of shaft 8 can only be turned to open or close first door 4 when lever 11 is in a clearly defined position. |
