1. Elevator — 2023-12-30 12:44:08

   … and a counterweight for safety. A control cable in the car operated a belt-shifter to change travel direction. A hand brake is in evidence. This basic system remained the principle for lifts for over 50 years. == Links == [[http://www.victor…

2. Electric Car — 2023-08-27 16:16:21

   …== The **Elwell-Parker **car was fitted with Parkers high-capacity rechargeable batteries, later vehicles had hydraulic brakes on all four wheels, as well as four-wheel steering. These features are even now being described as revolutionary. In …

3. Disc Brakes — 2020-08-09 19:54:18

   …rovements for their automobiles including his disk brake system. The discs were thin and made of brass but they fit the definition of a modern disc brake, beating competitors t…

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