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  2. Metal spinning - Wikipedia

    en.wikipedia.org/wiki/Metal_spinning

    The foreground shows the mandrel for the base. Behind the finished vase are the spinning tools used to shape the metal. Metal spinning, also known as spin forming or spinning or metal turning most commonly, is a metalworking process by which a disc or tube of metal is rotated at high speed and formed into an axially symmetric part. [1]

  3. Hay rake - Wikipedia

    en.wikipedia.org/wiki/Hay_rake

    (Click for video) A tractor with a rotary rake forms a windrow, another one with a loader wagon follows and collects the hay for silage. A hay rake is an agricultural rake used to collect cut hay or straw into windrows for later collection (e.g. by a baler or a loader wagon). It is also designed to fluff up the hay and turn it over so that it ...

  4. Three-point hitch - Wikipedia

    en.wikipedia.org/wiki/Three-point_hitch

    In addition, the three-point hitch would prevent the tractor from flipping backwards on the drive wheels if the implement being dragged were to hit a rock or other immovable obstruction. Ferguson and his colleagues developed several innovations to this device (e.g., the hydraulic lift and depth control) which made the system workable, effective ...

  5. Metalworking - Wikipedia

    en.wikipedia.org/wiki/Metalworking

    Turning is a metal cutting process for producing a cylindrical surface with a single point tool. The workpiece is rotated on a spindle and the cutting tool is fed into it radially, axially or both. Producing surfaces perpendicular to the workpiece axis is called facing.

  6. Turning - Wikipedia

    en.wikipedia.org/wiki/Turning

    Hard turning is a type of turning done on materials with a Rockwell C hardness greater than 45. It is typically performed after the workpiece is heat treated. [3] The process is intended to replace or limit traditional grinding operations. Hard turning, when applied for purely stock removal purposes, competes favorably with rough grinding.

  7. 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.

  8. 70s vibes, living history, a tractor pull and a special BISFA ...

    www.aol.com/70s-vibes-living-history-tractor...

    The Washington County Tractor Pull will be held Saturday, May 25, at 6 p.m. at the Washington County Agriculture Education Center, 7313 Sharpsburg Pike, Boonsboro. ... 3 Stocks That Could Turn ...

  9. Fifth-wheel coupling - Wikipedia

    en.wikipedia.org/wiki/Fifth-wheel_coupling

    A wheel would be placed on the rear frame section of the truck, which at the time had only four wheels, making the additional wheel the "fifth wheel". The trailer needed to be raised so that the trailer's pin would be able to drop into the central hole of the fifth wheel. Fifth wheels were originally not a complete circle and were hand forged.