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| SCRAPER, PADDLE WHEEL
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Earthmoving equipment that is used to finely grade surfaces by using a paddle-wheel blade to rotate and scrape off the top later of the soil, depositing it in the bucket. |
| SCRATCH AWL
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Sharply pointed tool which scratches lines on surfaces. |
| SCRATCH COAT
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The first coat of stucco or plaster which is roughened to hold the second coat. |
| SCRATCHER
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Any serrated or sharply tined object that is used to roughen the surface of one coat of mortar to provide a mechanical key for the next coat. |
| SCREED
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Straight board which levels and removes excess concrete, etc. which has been poured into forms, prior to its hardening. |
| SCREED AUGER
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Paving machine that employs an auger to spread asphalt along the length of the screed so that it is distributed evenly, then the screed levels the asphalt onto the road. |
| SCREED STRIP
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Strips of wood, metal, mortar or other material used as guides on which a straight edge is worked to obtain a true mortar surface. |
| SCREED, POWER DRIVEN
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Two straight boards, spaced a foot apart, combined with an engine that causes them to vibrate, used to level and remove excess concrete, etc., prior to its hardening. |
| SCREEDING
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Leveling and removing excess concrete by drawing a board back and forth across its top. |
| SCREEN
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(1) Frame covered with a fine mesh, which serves as a barrier on windows and doors to keep insects and debris from entering, while allowing air to circulate. (2) Coarse mesh used to sift or sieve out coarser from finer material. (3) The surface area of a T.V. or other receiver. (4) A system of separating out different types of persons or things. |
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