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Heat-shrinkable sleeves are applied onto the cutback at the field weld or "field joint" during the construction of a pipeline. As described above, the heat-shrinkable sleeves have an adhesive that sticks the sleeve to the cutback and the factory applied mainline coating and also acts as a corrosion protective layer.
Notice the sleeves, fastened to the timber forms before the concrete is cast. improper sleeving in a drywall assembly. In construction , a sleeve is used both by the electrical and mechanical trades to create a penetration in a solid wall, ceilling or floor.
Slip gates are a form of gate which permits people and vehicles through an entrance but which blocks the passage of animals. Branches or worked wood crossbars or stangs were used, one field slip gate pier with L-shaped grooves and the opposing stile gatepost with square or circular concavities to receive the three or four horizontal crossbars.
Plan of the United States Military Academy in West Point, New York. The history of United States Army Corps of Engineers can be traced back to the American Revolution.On 16 June 1775, the Continental Congress organized the Corps of Engineers, whose initial staff included a chief engineer and two assistants. [6]
A Hampshire gate, New Zealand gate or wire gate is a type of agricultural gate formed from a section of wire fence which can be removed temporarily. This type of gate is used where access is only needed occasionally, or when the cost of a conventional rigid gate cannot be justified.
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