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  2. Simplicity Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Simplicity_Manufacturing...

    The company was founded by William J. Niederkorn in 1922, and started building walk-behind two-wheeled tractors in 1939. Between 1941 and 1945, due to World War II , Simplicity Manufacturing temporarily halted production of lawn and garden products, and manufactured electric fence controllers and external surface grinders to satisfy the War ...

  3. Bryant Grinder - Wikipedia

    en.wikipedia.org/wiki/Bryant_Grinder

    According to Vermont Machine Tool, the Goldman Group had "limited experience in the machine tool industry, which resulted in some difficult times for the company [and its] customers and suppliers. During February of 2002, Bryant Grinder suddenly closed […], prompting many to speculate that the company would never do business again." [4]

  4. Tool and cutter grinder - Wikipedia

    en.wikipedia.org/wiki/Tool_and_cutter_grinder

    The D-bit (after Friedrich Deckel, [1] the brand of the original manufacturer) grinder is a tool bit grinder designed to produce single-lip cutters for pantograph milling machines. Pantographs are a variety of milling machine used to create cavities for the dies used in the molding process ; they are largely obsolete and replaced by CNC ...

  5. Bench grinder - Wikipedia

    en.wikipedia.org/wiki/Bench_grinder

    A bench grinder is a benchtop type of grinding machine used to drive abrasive wheels. A pedestal grinder is a similar or larger version of grinder that is mounted on a pedestal, which may be bolted to the floor or may sit on rubber feet. These types of grinders are commonly used to hand grind various cutting tools and perform other rough ...

  6. Two-wheel tractor - Wikipedia

    en.wikipedia.org/wiki/Two-wheel_tractor

    Sifeng Model 12 HP 2WT with 5.6 tonnes of rice, Bangladesh A Changzhou Hengfeng Two-wheel tractor ('Walking Tractor') in Hsipaw ().. Research has identified several terms used to identify the two-wheel tractor including: "walk-behind tractor, iron-ox, walking tractor, mechanical ox, ox-machine, pedestrian tractor, hand tractor, single-axle tractor, and in Asia, tok-tok".

  7. “History Cool Kids”: 91 Interesting Pictures From The Past

    www.aol.com/lifestyle/history-cool-kids-91...

    Image credits: historycoolkids #3. This is the grave of Leonard Matlovich. After serving three tours in Vietnam, Matlovich became a recipient of the Bronze Star and Purple Heart.

  8. Mill (grinding) - Wikipedia

    en.wikipedia.org/wiki/Mill_(grinding)

    SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. [9] [10] The largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. [11]

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