This device is not very complicated and consists of the heating element, the mercury column and the solenoid. When the current is switched on starts to operate the heater — closed working contacts of the relay. When it starts to heat up the mercury, and the column rises to the level of the contact turns on the electromagnet. It attracts the contact 1, and the heater is switched off. With the decrease of temperature the mercury goes down, severing contacts, the electromagnet is deactivated. The result is again connected to the terminals 1 and 2, and the heater turns on again.
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Mechanic Valery Kirilo from the village N. Chernychova the Brest region, built the Rover "KV-4" — jeep, which can work as a wheeled tractor. As a motor it has an engine "PD-10U".
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A small piece of steel cable, sheathed in a tubular plastic cover, enters a metal cylinder smaller than a hockey puck at its ends. This is a bicycle lock designed to prevent theft. It...
