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  2. Lux Products - Wikipedia

    en.wikipedia.org/wiki/Lux_Products

    In the years that followed, the company grew and began making the entire clock unit. Lux Clock produced clocks until 1941, at which time they made war related products. Clock production resumed after the war, and in 1954 a plant was established in Lebanon, Tennessee. By 1959 a Lux Time Ltd. facility was built in Ontario, Canada.

  3. Conservation and restoration of clocks - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    The temperature of a given environment can play a direct role in clock deterioration. "[...] extremes in temperature and humidity" [2] can cause drastic changes in the materials from which a clock is made, inevitably leading to damage. Placement of a clock for example near "a heat source of any kind, including strong sunlight or a mantel over a ...

  4. Programmable thermostat - Wikipedia

    en.wikipedia.org/wiki/Programmable_thermostat

    Honeywell electronic thermostat in a store. Heating and cooling losses from a building (or any other container) become greater as the difference in temperature increases. A programmable thermostat allows reduction of these losses by allowing the temperature difference to be reduced at times when the reduced amount of heating or cooling would not be objectionable.

  5. Atmos clock - Wikipedia

    en.wikipedia.org/wiki/Atmos_clock

    Older Atmos clock. The first clock powered by changes in atmospheric pressure and temperature was invented by Cornelis Drebbel in the early 17th century. Drebbel built as many as 18 of these, the two most notable being for King James VI & I of Britain, and Rudolf II of Bohemia. The King James clock was known as the Eltham Perpetuum, and was ...

  6. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.

  7. Electric clock - Wikipedia

    en.wikipedia.org/wiki/Electric_clock

    Telechron synchronous electric clock manufactured around 1940. By 1940, the synchronous clock became the most common type of clock in the United States. An electric clock is a clock that is powered by electricity, as opposed to a mechanical clock which is powered by a hanging weight or a mainspring.

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  9. Quartz clock - Wikipedia

    en.wikipedia.org/wiki/Quartz_clock

    Standard-quality 32 768 Hz resonators of this type are warranted to have a long-term accuracy of about six parts per million (0.0006%) at 31 °C (87.8 °F): that is, a typical quartz clock or wristwatch will gain or lose 15 seconds per 30 days (within a normal temperature range of 5 to 35 °C or 41 to 95 °F) or less than a half second clock ...

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