| 摘要 |
903,799. Fusible links. MATHER & PLATT Ltd. Dec. 16, 1960 [Dec. 28, 1959], No. 43320/60. Class 47. A fusible link, suitable for holding fire doors or skylights, comprises a pair of plate elements 11 and 12 and a locking member 19 which extends through a hole 18 in element 12 into a depression 15 in element 11 and sits on bosses 21 there where it is retained by fusible solder. The flat portions of elements 11, 12 may also be joined by solder. |
