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Four Chinese Secrets

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1. Steady unicycle wheelbarrow.

2. Vise for the kettle.

3. Handwheel Drill.

4. We collect solar energy.

 Vise for the kettle.

Since the 70s, one Swedish company produces convenient device for fixing products of complex shape during their drilling, grinding, milling, which was also invented in China, is also used for a long time by handicraftsmen to this day! Unlike parallel vices, complex screw clamps and faceplates, the ancient Chinese device is suitable for temporary fastening of fragile products of the most complex shape, the reception allows literally seconds to “release” the product in order to change its orientation relative to the plane of the table or processing tool, and then quickly again pinch!
The ancient version of the device includes: a rectangular hole in the worktop of the workbench, a closed belt loop, a lever for tensioning the loop with the help of the leg (Fig. 5). Chinese craftsmen used an elastic leather belt, Swedish designers used a textile belt (braid), while replacing the lever tension mechanism with a screw device. The main principle of the invention is the coverage of a product of complex shape with a belt loop passed through an opening in the table - it remains the same ...

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