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  2. Key (engineering) - Wikipedia

    en.wikipedia.org/wiki/Key_(engineering)

    In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. The key prevents relative rotation between the two parts and may enable torque transmission. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is

  3. Pail (container) - Wikipedia

    en.wikipedia.org/wiki/Pail_(container)

    Three gallon plastic pail of paint with screw closure Steel pail of concentrated pesticide Open-head plastic pails being reused to carry other items. In technical usage in the shipping industry, a pail is a type of cylindrical shipping container with a capacity of about 3 to 50 litres (1 to 13 US gal).

  4. Bucket - Wikipedia

    en.wikipedia.org/wiki/Bucket

    In contrast, a pail can have a top or lid and is a shipping container. In non-technical usage, the two terms are often used interchangeably. Types and uses A number ...

  5. Pail - Wikipedia

    en.wikipedia.org/wiki/Pail

    Pail may refer to: Bucket with an open top and a handle; Pail (container) with a top and a handle; PAIL (acronym) Pregnancy and Infant Loss; Pail (unit)

  6. Bucket toilet - Wikipedia

    en.wikipedia.org/wiki/Bucket_toilet

    A bucket toilet is a basic form of a dry toilet whereby a bucket (pail) is used to collect excreta. Usually, feces and urine are collected together in the same bucket, leading to odor issues. The bucket may be situated inside a dwelling, or in a nearby small structure (an outhouse).

  7. Closely related key - Wikipedia

    en.wikipedia.org/wiki/Closely_related_key

    In the key of C major, these would be: D minor, E minor, F major, G major, A minor, and C minor. Despite being three sharps or flats away from the original key in the circle of fifths, parallel keys are also considered as closely related keys as the tonal center is the same, and this makes this key have an affinity with the original key.

  8. Coal scuttle - Wikipedia

    en.wikipedia.org/wiki/Coal_scuttle

    In 1917, the Swedish serial killer Hilda Nilsson used a coal scuttle, a large bucket, and a washboard to drown children that she had been hired to care for. [5]The infamous German Stahlhelm, or Steel Helmet, is sometimes referred to in English-language publications as the "Coal Scuttle" helmet, due to its shape resembling that of a coal scuttle.

  9. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    The key can then be used to unlock the kiln door. While the key is removed from the switch interlock, a plunger from the interlock mechanically prevents the power switch from being turned on. Power cannot be re-applied to the kiln until the kiln door is locked, releasing the key, and the key is then returned to the power switch interlock. [5]