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2. Fresno scraper - Wikipedia

   en.wikipedia.org/wiki/Fresno_scraper

   Fresno scraper. The Fresno scraper is a machine pulled by horses used for constructing canals and ditches in sandy soil. The design of the Fresno scraper forms the basis of most modern earthmoving scrapers, having the ability to scrape and move a quantity of soil, and also to discharge it at a controlled depth, thus quadrupling the volume which ...

3. Scraper (archaeology) - Wikipedia

   en.wikipedia.org/wiki/Scraper_(archaeology)

   Scraper (archaeology) In prehistoric archaeology, scrapers are unifacial tools thought to have been used for hideworking and woodworking. [1] Many lithic analysts maintain that the only true scrapers are defined on the base of use-wear, and usually are those that were worked on the distal ends of blades —i.e., "end scrapers" (French: grattoir ...

4. Clarifier - Wikipedia

   en.wikipedia.org/wiki/Clarifier

   Inside the clarifier, solid contaminants will settle down to the bottom of the tank where it is collected by a scraper mechanism. [2] Concentrated impurities, discharged from the bottom of the tank, are known as sludge, while the particles that float to the surface of the liquid are called scum. [3]

5. File (tool) - Wikipedia

   en.wikipedia.org/wiki/File_(tool)

   File (tool) Detail of a double-cut flat file showing cutting surfaces on both wide and narrow faces. A file is a tool used to remove fine amounts of material from a workpiece. It is common in woodworking, metalworking, and other similar trade and hobby tasks. Most are hand tools, made of a case hardened steel bar of rectangular, square ...

6. Sedimentation (water treatment) - Wikipedia

   en.wikipedia.org/wiki/Sedimentation_(water...

   Sedimentation (water treatment) The physical process of sedimentation (the act of depositing sediment) has applications in water treatment, whereby gravity acts to remove suspended solids from water. [1] Solid particles entrained by the turbulence of moving water may be removed naturally by sedimentation in the still water of lakes and oceans.

7. Magnetic level gauge - Wikipedia

   en.wikipedia.org/wiki/Magnetic_level_gauge

   Magnetic level gauge. A magnetic level gauge is a level gauge based on a float device that can experience floatation in both high and low density fluids. Magnetic level gauges may also be designed to accommodate severe environmental conditions up to 210 bars at 370 °C. Unlike a sight glass, magnetic level gauges do not need to be transparent ...

8. Grout - Wikipedia

   en.wikipedia.org/wiki/Grout

   Grout is a dense fluid that hardens upon application and is used to fill gaps or as reinforcement in existing structures. [1] Grout is generally a mixture of water, cement, and sand, and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of precast concrete, filling voids, and sealing joints such as those ...

9. Hand scraper - Wikipedia

   en.wikipedia.org/wiki/Hand_scraper

   A hand scraper is a single-edged tool used to scrape metal or other materials from a surface. This may be required where a surface needs to be trued, corrected for fit to a mating part, needs to retain oil (usually on a freshly ground surface), or to give a decorative finish. Surface plates were traditionally made by scraping. [1]