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A chimney cowl or wind directional cap is a helmet-shaped chimney cap that rotates to align with the wind and prevent a downdraft of smoke and wind down the chimney. An H-style cap is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method of regulating draft in situations where prevailing winds or ...
Great Western locomotives with their distinctive copper-rimmed chimneys The new-build steam locomotive Leviathan, a 4-4-0 with a large spark-arresting chimney. The chimney (smokestack or stack in American and Canadian English) is the part of a steam locomotive through which smoke leaves the boiler.
A Samovar typically is made of iron, copper, polished brass, bronze, silver, gold, tin, or nickel — and consists of a body, base and chimney, cover and steam vent, handles, tap and key, crown and ring, chimney extension and cap, drip-bowl, and teapot.
An H-style cap (cowl) is a chimney top constructed from chimney pipes shaped like the letter H. It is an age-old method to regulate draft in situations where prevailing winds or turbulence cause downdraft and back-puffing. Although the H-cap has a distinctive advantage over most other downdraft caps, it fell out of favor because of its bulky looks.
In earlier days, birch bark was occasionally used as a flashing material. [7] Most flashing materials today are metal, plastic, rubber, or impregnated paper. [8]Metal flashing materials include lead, aluminium, copper, [1] stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminium, terne-coated copper ...
A tall chimney contains the spent gases above the flame. If the percentage of firedamp starts to rise, less oxygen is available in the air and combustion is diminished or extinguished. Early Geordie lamps had a simple pierced copper cap over the chimney to further restrict the flow and to ensure that the vital spent gas did not escape too quickly.
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