| 摘要 |
<p>462,810. Preventing fires. BURKITT, F. Sept. 4, 1936, No. 24174. [Class 47 (ii)] [Also in Group XXV] A quick-release arrangement for fire curtains, shutters and the like has a steel pin C which secures the swivel bow J to the fitting B and which can be withdrawn by the depression of the handle A. The lever works on a pivot pin N and a spring O keeps the free end of the lever in its uppermost position. Specification 367,020 is referred to.</p> |
