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  2. Lawn aerator - Wikipedia

    en.wikipedia.org/wiki/Lawn_aerator

    A spike aerator creates holes in the ground by pushing the soil sideways as wedge-shaped spikes penetrate the soil. Since there is no soil removed from the ground, watering will cause the compacted soil around the holes to expand and close. A core/plug aerator removes soil from the ground and leaves the core on the turf.

  3. Tractor vaporising oil - Wikipedia

    en.wikipedia.org/wiki/Tractor_vaporising_oil

    Tractor vaporising oil (TVO) is a fuel for petrol-paraffin engines. It is seldom made or used today. It is seldom made or used today. In the United Kingdom and Australia , after the Second World War , it was commonly used for tractors until diesel engines became commonplace, especially from the 1960s onward.

  4. Faucet aerator - Wikipedia

    en.wikipedia.org/wiki/Faucet_aerator

    When an aerator is added to the faucet (or fluid stream), there is a region of high pressure created behind the aerator. Because of the higher pressure behind the aerator and the low pressure in front of it (outside the faucet), due to Bernoulli's principle there is an increase in velocity of the fluid flow.

  5. Deaerator - Wikipedia

    en.wikipedia.org/wiki/Deaerator

    A deaerator plant. A deaerator is a device that is used for the removal of dissolved gases like oxygen from a liquid.. Thermal deaerators are commonly used to remove dissolved gases in feedwater for steam-generating boilers.

  6. Farmall A - Wikipedia

    en.wikipedia.org/wiki/Farmall_A

    It was produced from 1958 to 1973. In 1963 it was restyled in a squared-off manner to match larger Farmall tractors. [21] Total production was 66,290. The IH 140 was produced as an industrial tractor, and a high-crop version, called the 140 Hi-Clear, was produced. [22] [23] [24] Sale prices were between $2,400 and $4,300. [20]

  7. Aerator - Wikipedia

    en.wikipedia.org/wiki/Aerator

    An aerator is a mechanical device used for aeration, or mixing air with another substance, such as water or soil. The word aerator may also refer to: Faucet aerator; Floating surface aerator, used in wastewater treatment; Lawn aerator; Surface or subsurface aerator, used in water aeration; Wine aerator

  8. Water aeration - Wikipedia

    en.wikipedia.org/wiki/Water_aeration

    The effectiveness of a surface aerator is limited to a small area as they are unable to add circulation or oxygen to much more than a 3-metre radius. This circulation and oxygenating is then limited to the uppermost portion of the water column, often leaving the bottom portions unaffected. Low speed surface aerators can also be installed on floats.

  9. 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.