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  2. Grinding (abrasive cutting) - Wikipedia

    en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

    A man grinding on metal using an angle grinder, causing a lot of sparks. Grinding is a type of abrasive machining process which uses a grinding wheel as cutting tool. A wide variety of machines are used for grinding, best classified as portable or stationary: Portable power tools such as angle grinders, die grinders and cut-off saws

  3. Centerless grinding - Wikipedia

    en.wikipedia.org/wiki/Centerless_grinding

    A schematic diagram of the centerless grinding process. Centerless grinding is a machining process that uses abrasive cutting to remove material from a workpiece. [1] Centerless grinding differs from centered grinding operations in that no spindle or fixture is used to locate and secure the workpiece; [2] the workpiece is secured between two rotary grinding wheels, and the speed of their ...

  4. Jig grinder - Wikipedia

    en.wikipedia.org/wiki/Jig_grinder

    A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required. The jig grinder is very similar to a jig borer , in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe ).

  5. Dead man's switch - Wikipedia

    en.wikipedia.org/wiki/Dead_man's_switch

    Interest in dead man's controls increased with the introduction of electric trams (streetcars in North America) and especially electrified rapid transit trains. The first widespread use came with the introduction of the mass-produced Birney One-Man Safety (tram) Car, though dead-man equipment was fairly rare on US streetcars until the successful PCC streetcar, which had a left-foot-operated ...

  6. Schmitt trigger - Wikipedia

    en.wikipedia.org/wiki/Schmitt_trigger

    Block diagram of a Schmitt trigger circuit. It is a system with positive feedback in which the output signal fed back into the input causes the amplifier A to switch rapidly from one saturated state to the other when the input crosses a threshold. A > 1 is the amplifier gain B < 1 is the feedback transfer function

  7. Grinder's Switch, Tennessee - Wikipedia

    en.wikipedia.org/wiki/Grinder's_Switch,_Tennessee

    There was a team track at the depot, necessitating the installation of a switch. Long after the depot disappeared, the team track and its switch remained, thus the name "Grinders Switch". Grinders was still listed in the railroad tariff book called "Official List of Open & Prepay Stations No. 82" dated November 15, 1967.

  8. Garbage disposal unit - Wikipedia

    en.wikipedia.org/wiki/Garbage_disposal_unit

    In the United States, 50% of homes had disposal units as of 2009, [12] compared with only 6% in the United Kingdom [13] and 3% in Canada. [14]In Britain, Worcestershire County Council and Herefordshire Council started to subsidize the purchase of garbage disposal units in 2005, in order to reduce the amount of waste going to landfill and the carbon footprint of garbage runs. [15]

  9. Grinder's Switch Featuring Garland Jeffreys - Wikipedia

    en.wikipedia.org/wiki/Grinder's_Switch_featuring...

    Grinder's Switch featuring Garland Jeffreys is the debut album of Garland Jeffreys and Grinder's Switch. It was released by Vanguard Records (catalog number VSD 6550) in 1970. [3] The 1970 version issued in France (catalog number VSD 23050) used the name Grinder's Switch. The CD releases use the name Garland Jeffreys and Grinder's Switch. [1]