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  2. Sleeve (construction) - Wikipedia

    en.wikipedia.org/wiki/Sleeve_(construction)

    For example, a 4" pipe, with 1" of thermal insulation makes a 6" penetrant (1" pipe covering on each side of the pipe), plus two pipe sizes = an 8" sleeve, creating a 1" annulus. In case of insulated piping, the size of the insulation must be taken into account for the intended firestop certification listing .

  3. Tie rod - Wikipedia

    en.wikipedia.org/wiki/Tie_rod

    A tie rod or tie bar (also known as a hanger rod if vertical) is a slender structural unit used as a tie and (in most applications) capable of carrying tensile loads only. It is any rod or bar-shaped structural member designed to prevent the separation of two parts, as in a vehicle. Tie rods and anchor plates in the ruins of Coventry Cathedral

  4. Gooseneck (piping) - Wikipedia

    en.wikipedia.org/wiki/Gooseneck_(piping)

    Gooseneck vent with check valve being repainted. A gooseneck (or goose neck) is a 180° pipe fitting at the top of a vertical pipe that prevents entry of water. Common implementations of goosenecks are ventilator piping or ducting for bathroom and kitchen exhaust fans, ship holds, landfill methane vent pipes, or any other piping implementation exposed to the weather where water ingress would ...

  5. Canopy (architecture) - Wikipedia

    en.wikipedia.org/wiki/Canopy_(architecture)

    A canopy is a type of overhead roof or else a structure over which a fabric or metal covering is attached, able to provide shade or shelter from weather conditions such as sun, hail, snow and rain. They are frequently found at bus shelters and train station platforms. [1] A canopy can also be a tent, generally without a floor.

  6. Sleeve valve - Wikipedia

    en.wikipedia.org/wiki/Sleeve_valve

    Sleeve valve closeup from a Bristol Centaurus Mark 175. Bristol Perseus. The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre–World War II luxury cars and in the United States in the Willys-Knight car and light truck. They subsequently fell from ...

  7. Collar beam - Wikipedia

    en.wikipedia.org/wiki/Collar_beam

    The simplest form of roof framing is a common rafter roof. This roof framing has nothing but rafters and a tie beam at the bottoms of the rafters. The next step in the development of roof framing was to add a collar, called a collar beam roof. Collar beam roofs are suitable for spans up to around (4.5 meters). [5]

  8. Domestic roof construction - Wikipedia

    en.wikipedia.org/wiki/Domestic_roof_construction

    Section view through a house roof drawing showing names for parts of the structure. [clarification needed] (UK and Australia). Ctrs. means centers, a typical line to which carpenters layout framing. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1]

  9. Canopy bed - Wikipedia

    en.wikipedia.org/wiki/Canopy_bed

    Crown (also Canopy crown): The apex of a raised canopy. [9] Finials: Decorative end caps for the bed posts that hold a canopy in place. [9] Footboard: The solid or upholstered secondary focal point of a bed attached at or to the foot of the bed. [9] Foot: The portion of the bed at your feet—the foot of the bed usually faces out into the room. [9]

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