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  2. Differential pulley - Wikipedia

    en.wikipedia.org/wiki/Differential_pulley

    The mechanical advantage would equal the ratio of chain link pairs required for each revolution to the net gain of chain link pairs. Put another way, the mechanical advantage would be the distance of pull required for each unit distance of gain. The mechanical advantage at the differential sprocket pair equals ⁠ P 1 / P 1 − P 2 ⁠.

  3. Pull switch - Wikipedia

    en.wikipedia.org/wiki/Pull_switch

    The most common use of a pull switch is to operate a ceiling electric light.The ceiling fan and mechanical wall fans are also appliances often operated by pull switches. . Pull switches may be either two-position (open or closed) or multi-position (allowing for different fan speeds or levels of illuminati

  4. Roller chain - Wikipedia

    en.wikipedia.org/wiki/Roller_chain

    Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.

  5. General Motors ignition switch recalls - Wikipedia

    en.wikipedia.org/wiki/General_Motors_ignition...

    Therefore, this was a safety hazard: If the switch changed from Run to Accessory and the vehicle was involved in an accident, it would no longer have power to release the airbags, and it would be difficult for the driver to steer and brake. [12] General Motors was aware of this potential problem, and held meetings about it, as early as 2005. [13]

  6. Pull My Chain - Wikipedia

    en.wikipedia.org/wiki/Pull_My_Chain

    Pull My Chain is the sixth studio album by American country music artist Toby Keith. It was released on August 28, 2001 by DreamWorks Records . The album has been certified 2× Multi-Platinum in the U.S. for sales of two million copies.