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  2. Tightlock coupling - Wikipedia

    en.wikipedia.org/wiki/Tightlock_coupling

    Like all Janney couplers, the Tightlock is "semi-automatic". The couplers automatically lock when cars are pushed together, but workers must go between cars to hook up the air lines for the pneumatic brakes and connect cables for head-end power and other communications. To separate cars, a worker must use a lever to move the locking pin that ...

  3. Quick coupler - Wikipedia

    en.wikipedia.org/wiki/Quick_coupler

    Quick couplers (also called quick hitches) are used with construction machines to allow the rapid change of working tools or buckets and attachments on the machine. They remove the need to use hammers to manually drive out and insert the mounting pins for attachments.

  4. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    A remote control for a keyless entry system built into an ignition key: pressing a button on the key unlocks the car doors, while another button locks the car and activates its alarm system. A remote keyless system (RKS), also known as remote keyless entry (RKE) or remote central locking, is an electronic lock that controls access to a building ...

  5. Power door locks - Wikipedia

    en.wikipedia.org/wiki/Power_door_locks

    Pressing a button on the key unlocks all of the car doors. Another button locks the car. In 1980, Ford Motor Company introduced an external keypad-type keyless entry system, wherein the driver entered a numeric combination —either pre-programmed at the factory or one programmed by the owner— to unlock the car without the key.

  6. Railway coupling - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling

    The Wedglock coupler is named for the pneumatic wedges that lock the moving parts of the coupler head in the engaged position. It is the standard automatic coupler used on London Underground trains. The coupler was introduced in 1936 [56] and is manufactured by William Cook Rail [57] and Voith. [58]

  7. 6 ways to prevent holiday illness: Ask a doctor

    www.aol.com/6-ways-prevent-holiday-illness...

    Jesus Lizarzaburu, MD, a family physician with TPMG Grafton Family Medicine in Yorktown, Virginia, also recommends taking vitamin C a few weeks before the holiday season starts to help prevent ...

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