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  2. Mower blade - Wikipedia

    en.wikipedia.org/wiki/Mower_blade

    The first known lawn mower had a cylinder cutting gear made of iron. [citation needed] It was used to mow sporting grounds and wide-ranging gardens.As manufacturers changed the design and structure of mowers, the cutting mechanism also developed and evolved into several varieties, including cylinder/reel blades, deck blades, mulching blades, and lifting blades.

  3. Lawn mower - Wikipedia

    en.wikipedia.org/wiki/Lawn_mower

    The main parts of a cylinder or reel mower are: Blade reel/cylinder: Consists of numerous (3 to 7) helical blades that are attached to a rotating shaft. The blades rotate, creating a scissor-like cutting motion against the bed knife. Bed knife: The stationary cutting mechanism of a cylinder/reel mower. This is a fixed horizontal blade that is ...

  4. Universal testing machine - Wikipedia

    en.wikipedia.org/wiki/Universal_testing_machine

    A universal testing machine (UTM), also known as a universal tester, [1] universal tensile machine, materials testing machine, materials test frame, is used to test the tensile strength (pulling) and compressive strength (pushing), flexural strength, bending, shear, hardness, and torsion testing, providing valuable data for designing and ...