"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 7372356 | Concealed adjustable temperature switch A concealed adjustable temperature switch includes a fixed plate, an adjusting block threadedly engaged with a screw hole of the fixed plate, a bimetal plate, and a metal plate. Mounted on the adjusting block are upper and lower positioning rings and a fixing ring b... | 05/13/2008 |
| 4973933 | Dual control infinite switch An integral infinite switch is provided for controlling a first coil and a second coil of a radiant heating element. The integral infinite switch includes a first switch assembly for opening and closing an electrical path between a first AC electrical lin... | 11/27/1990 |
| 4283701 | Overshoot compensated thermostat A thermostat assembly to control heat to an iron soleplate, includes a bimetal blade on a soleplate boss responding to the heat thereto to make and break the electric circuit. To this standard construction an improved thermostat assembly uses a slot in th... | 08/11/1981 |