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  2. Snow chains - Wikipedia

    en.wikipedia.org/wiki/Snow_chains

    Automatic tire chains are permanently mounted near the drive tires and engage by turning a switch, then move into position to fling the pieces of chain under the tires automatically. Automatic chains were invented in 1941 in the United States [1] and Sweden in 1977 [citation needed]. Snow chains, or tire chains, are devices fitted to the tires ...

  3. Chain drive - Wikipedia

    en.wikipedia.org/wiki/Chain_drive

    Chain drive was the main feature which differentiated the safety bicycle introduced in 1885, with its two equal-sized wheels, from the direct-drive penny-farthing or "high wheeler" type of bicycle. The popularity of the chain-driven safety bicycle brought about the demise of the penny-farthing, and is still a basic feature of bicycle design today.

  4. These Expert-Recommended Tire Chains Will Keep Your ... - AOL

    www.aol.com/lifestyle/7-best-tire-chains-2023...

    Auto-Trac Light Truck/SUV Tire Traction Chain (Set of 2) Built from manganese alloy steel, these tire chains feature square crosslinks for maximum grip and durability and come in a variety of ...

  5. Snow socks - Wikipedia

    en.wikipedia.org/wiki/Snow_socks

    Snow socks (also known as auto socks) are textile alternatives to snow chains.Snow sock devices wrap around the tires of a vehicle to increase traction on snow and ice. Snow socks are normally composed of a woven fabric with an elastomer attached to the inner and/or outer edge.

  6. Central tire inflation system - Wikipedia

    en.wikipedia.org/wiki/Central_Tire_Inflation_System

    Another function of CTIS is to maintain tire pressure if there is a slow leak or puncture. In this case, the system controls inflation automatically based on the selected pressure the driver has set. [1] CTIS also extends truck, tire, and drive train life, by significantly reducing vibration and shock loading.

  7. Continuously variable transmission - Wikipedia

    en.wikipedia.org/wiki/Continuously_variable...

    As the chain moves into the pulleys the contact area gets smaller. As the contact area is proportional to the number of elements, chain belts require many very small elements. A belt-driven design offers approximately 88% efficiency, [ 4 ] which, while lower than that of a manual transmission , can be offset by enabling the engine to run at its ...

  8. Manumatic - Wikipedia

    en.wikipedia.org/wiki/Manumatic

    An automatic transmission with a manumatic function provides a greater level of control by allowing the driver to request an upshift or downshift at a specific time. This is usually achieved using "+" and "-" positions on the gear selector or with paddle-shifters mounted beside the steering wheel.

  9. Automatic transmission - Wikipedia

    en.wikipedia.org/wiki/Automatic_transmission

    The most common design of automatic transmissions is the hydraulic automatic, which typically uses planetary gearsets that are operated using hydraulics. [ 12 ] [ 13 ] The transmission is connected to the engine via a torque converter (or a fluid coupling prior to the 1960s), instead of the friction clutch used by most manual transmissions .

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