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  2. Three-point hitch - Wikipedia

    en.wikipedia.org/wiki/Three-point_hitch

    This gives the tractor more usable traction than it would otherwise have, given the same power, weight, and fuel consumption. For example, when the Ford 9N introduced Harry Ferguson 's three-point hitch design to American production-model tractors in 1939, it was a light and affordable tractor competing principally with row-crop tractors such ...

  3. Drill press - Wikipedia

    en.wikipedia.org/wiki/Drill_press

    Column drill press is a common type characterized by the fact that the drill spindle can be moved up and down axially ("along a column"), and has a height-adjustable table, usually adjustable via a rack and pinion. They often used with a vise holding the workpiece, and the vice is again clamped to the table. The vice has to be moved in order to ...

  4. Scissors mechanism - Wikipedia

    en.wikipedia.org/wiki/Scissors_mechanism

    This mechanism is used in devices such as lift tables and scissor lifts.Modern low-profile computer keyboards make an extensive use of it as well, installing each key on a scissor support to ensure their smooth vertical movement, allowing the use of a cheap and reliable rubber dome contact set, instead of expensive and complex array of mechanical switches.

  5. Tractor - Wikipedia

    en.wikipedia.org/wiki/Tractor

    The Ford N-series tractor helped revolutionize modern mechanized agriculture with its Ferguson three point hitch. A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction.

  6. Schramm Inc. - Wikipedia

    en.wikipedia.org/wiki/Schramm_Inc.

    The Schramm T685 WS truck mounted drill bored a 5.5 inches (14 cm) hole that, on 22 August 2010, was the first to break through to the 33 trapped men, confirming they had survived the accident. [9] The company also manufactured the T130XD air core drilling rig owned by Geotec S.A., a Chilean-American joint venture drilling company.

  7. Auxiliary hydraulic system - Wikipedia

    en.wikipedia.org/wiki/Auxiliary_hydraulic_system

    An auxiliary hydraulic system delivers pressurized hydraulic fluid from a hydraulic pump to operate auxiliary equipment or attachments. The addition of an auxiliary hydraulic system to heavy construction equipment increases the versatility of the vehicle by allowing it to perform additional functions with different attachments. [1]

  8. Drill - Wikipedia

    en.wikipedia.org/wiki/Drill

    A drill press Drill press (then called a boring machine) boring wooden reels for winding barbed wire, 1917. A drill press (also known as a pedestal drill, pillar drill, or bench drill) is a style of drill that may be mounted on a stand or bolted to the floor or workbench. Portable models are made, some including a magnetic base.

  9. List of United States Army tactical truck models - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_Army...

    Semi-tractor for pontoon bridges: Mack NJU 5-6 ton 4x4: 1941–1942: 692: Semi-tractor for pontoon bridges Brockway B666 [g] 6-ton 6x6 [10] 1941–1945: 219,882: Bridge, crane, cargo fire, van and others by 5 manufacturers Mack NM 6-ton 6x6: 1940–1944: 8,400+ Prime mover cargo truck Mack NO 7 + 1 ⁄ 2-ton 6x6: 1943–1945: 2,050: Prime mover ...

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