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The wedge plow or Bucker plow was first developed by railroad companies to clear snow in the American West. The wedge plow forces snow to the sides of the tracks and therefore requires a large amount of force due to the compression of snow. The wedge plow is still in use today in combination with the high-maintenance rotary snowplow.
Snow plow blades are available in various sizes depending on a vehicle type. Service trucks usually use a blade sized 96 in (2.4 m) and more. Common blade size for pickup trucks and full size SUVs is 78–96 in (2.0–2.4 m). Smaller ATV snow plow blades are 48–78 in (1.2–2.0 m) wide. [citation needed]
Other common names for it include "clear sight", "spin window", "Kent Screen" and "rotating windshield wiper". Clear view screens were patented in 1917 by Samuel Augustine de Normanville and Leslie Harcourt Kent as a stand-alone pillar-mounted screen, [ 1 ] with later patents for telescope and optics covers, followed by the more familiar ships ...
Snow deeper than this, however, can clog the brushes, and most snow sweepers cannot be used to clear snow deeper than 15 centimetres (5.9 in). [55] A more advanced version of the snow sweeper is the jet sweeper, which adds an air-blower just behind the brushes, in order to blow the swept snow clear of the pavement and prevent the loosened snow ...
Window coverings comprise materials used to cover a window to manage sunlight, privacy, additional weatherproofing or for purely decorative purposes. Window coverings are typically used on the interior side of windows, but exterior solutions are also available. Window coverings may be used to manage overheating and glare issues due to sunlight.
Restaurants often use awnings broad enough to cover substantial outdoor area for outdoor dining, parties, or reception. In commercial buildings, an awning is often painted with information as to the name, business, and address, thus acting as a sign or billboard as well as providing shade, breaking strong winds, and protecting from rain or snow ...
A typical installation of insulated glass windows with uPVC frames. Possibly the earliest use of double glazing was in Siberia, where it was observed by Henry Seebohm in 1877 as an established necessity in the Yeniseysk area where the bitterly cold winter temperatures regularly fall below -50° C, indicating how the concept may have started: [2]
Components of a simple drawn plow: 1) beam; 2) three point hitch; 3) height regulator; 4) coulter (or knife) 5) chisel 6) plowshare 7) moldboard Instrument for cleaning a plowshare used at a mill near Horažďovice, Czech Republic. In agriculture, a plowshare or ploughshare (UK; / ˈ p l aʊ ʃ ɛər /) is a component of a plow (or plough).