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  2. Infinite switch - Wikipedia

    en.wikipedia.org/wiki/Infinite_switch

    The infinite switch itself was described in a 1975 patent of George F. Esker Jr. and Otto J. Cousins of the Harper Wyman Company. This switch would reset itself as the bi-metallic strip cooled, provided a cycle of calibrated opening and closing. It also provided an indicator light that remained on as long as the knob was not in the closed position.

  3. Fire screen desk - Wikipedia

    en.wikipedia.org/wiki/Fire_screen_desk

    A few fire screen desks had no screen per se but were simply lighter, narrower, and extremely thinner versions of the high secretary desk put on some form of permanent trestle mount. Their high form shielded the user's face from the heat of the flames while the open trestle mount at the bottom exposed the feet.

  4. Thermal cutoff - Wikipedia

    en.wikipedia.org/wiki/Thermal_cutoff

    A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops. The thermal switch may be a bimetallic strip, often encased in a tubular glass bulb to protect it from dust or short circuit. Another common design ...

  5. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Modern open fireplace An outdoor fireplace. A fireplace or hearth is a structure made of brick, stone or metal designed to contain a fire. Fireplaces are used for the relaxing ambiance they create and for heating a room. Modern fireplaces vary in heat efficiency, depending on the design.

  6. Fire screen - Wikipedia

    en.wikipedia.org/wiki/Fire_screen

    A fire screen or fireguard began as a form of furniture that acted as a shield between the occupants of a room and the fireplace, and its primary function was to reduce the discomfort of excessive heat from a log fire. Early firescreens were generally shaped as flat panels standing on attached feet, or as adjustable shield-shaped panels mounted ...

  7. Outdoor fireplace - Wikipedia

    en.wikipedia.org/wiki/Outdoor_fireplace

    While indoor fireplaces are traditionally designed for heating, an outdoor fireplace is usually used for cooking. Many are designed to double as wood-fired ovens that allow homeowners to create meals [3] such as pizzas and casseroles. Entire outdoor kitchens can evolve from the fireplace. An outdoor fireplace can simply be a decorative element ...

  8. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    System tests could be conducted in one of two ways: In a coded pull station, there is either a test hole on the front (usually activated with an Allen wrench) or a test switch on the inside. Turning the switch one way causes the notification appliances to sound continuous (or in the case of single-stroke bells, ding once). Turning it the other ...

  9. Screen heating - Wikipedia

    en.wikipedia.org/wiki/Screen_Heating

    The first commercially available screen heating system was developed in 1947 by F.R. Hannon & Sons (now Hanco International (), and Thomas W. Hannon obtained a patent for his electrically heated screen construction and method Archived 2017-02-11 at the Wayback Machine Archived 2017-02-11 at the Wayback Machine Archived 2017-02-11 at the Wayback ...

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