| 摘要 |
<p>431,534. Thermostats. AUTOMATIC HEAT CONTROL, Ltd., 3, Rumford Street, and TAYLOR, J. H., 14, Ennis Road, West Derby, both in Liverpool. Feb. 26, 1934, No. 6141. [Class 64 (ii)] [See also Group XII] A thermostat 9 for controlling an electric fan 11 supplying air to a furnace of a boiler is inserted at 5 in a casing 3 connected at one end to a pipe 1 leading to the boiler, and at the other end through an annular channel 4 carrying a thermometer 17 and a pet cock 8 with a pipe 6 leading to the main flow pipe 7 from the boiler.</p> |
