| 摘要 |
368,397. Burglar and like alarms. TEMPLE, H. R. H., 177, High Street, Swansea. March 19, 1931, No. 35768/30. [Class 118 (i).] An electric alarm circuit is closed automatically by the unauthorized removal of a vehicle, the vibration of the vehicle occasioned by its removal causing a spring strip 14 to oscillate and make contact with a fixed strip 19 adjustable by a screw 20. Metal weights 16, 17 are carried by the free end of the strip 14, which is insulated by blocks 15 from the metal cylindrical casing 11. |
