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2. Stepped reckoner - Wikipedia

   en.wikipedia.org/wiki/Stepped_reckoner

   The stepped reckoner was based on a gear mechanism that Leibniz invented and that is now called the Leibniz wheel. It is unclear how many different variants of the calculator were made. Some sources, such as the drawing to the right, show a 12-digit version. [5] This section describes the surviving 16-digit prototype in Hanover. Leibniz wheel

3. Wheel cylinder - Wikipedia

   en.wikipedia.org/wiki/Wheel_cylinder

   A wheel cylinder is a component of a hydraulic drum brake system. [1] It is located in each wheel and is usually positioned at the top of the wheel, above the shoes. Its function is to exert force onto the shoes so as to bring them into contact with the drum and stop the vehicle with friction. [2] The wheel cylinders are usually connected to ...

4. Drum brake - Wikipedia

   en.wikipedia.org/wiki/Drum_brake

   Drum brake (upper right) with the drum removed (lower left, inside facing up), on the front of a Ford Falcon Sprint A rear drum brake on a Kawasaki W800 motorcycle. A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating bowl-shaped part called a brake drum.

5. Leibniz wheel - Wikipedia

   en.wikipedia.org/wiki/Leibniz_wheel

   A Leibniz wheel or stepped drum is a cylinder with a set of teeth of incremental lengths which, when coupled to a counting wheel, can be used in the calculating engine of a class of mechanical calculators. Invented by Leibniz in 1673, it was used for three centuries until the advent of the electronic calculator in the mid-1970s.

6. Master cylinder - Wikipedia

   en.wikipedia.org/wiki/Master_cylinder

   The most common vehicle uses of master cylinders are in brake and clutch systems.. In brake systems, the operated devices are cylinders inside brake calipers and/or drum brakes; these cylinders may be called wheel cylinders or slave cylinders, and they push the brake pads towards a surface that rotates with the wheel (this surface is typically either a drum or a disc, a.k.a. a rotor) until the ...

7. T-Mobile class action lawsuit alleges company disguised fee ...

   www.aol.com/t-mobile-class-action-lawsuit...

   A class action lawsuit filed against T-Mobile alleges the company charges a hidden fee by misleading customers since 2004.

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9. Curta - Wikipedia

   en.wikipedia.org/wiki/Curta

   A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.