| slovo | definícia |
Tubular boiler
(gcide) | Tubular \Tu"bu*lar\, a. [L. tubulus, dim. of tubus a tube, or
pipe. See Tube.]
Having the form of a tube, or pipe; consisting of a pipe;
fistular; as, a tubular snout; a tubular calyx. Also,
containing, or provided with, tubes.
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Tubular boiler. See under Boiler.
Tubular breathing (Med.), a variety of respiratory sound,
heard on auscultation over the lungs in certain cases of
disease, resembling that produced by the air passing
through the trachea.
Tubular bridge, a bridge in the form of a hollow trunk or
tube, made of iron plates riveted together, as the
Victoria bridge over the St. Lawrence, at Montreal,
Canada, and the Britannia bridge over the Menai Straits.
Tubular girder, a plate girder having two or more vertical
webs with a space between them.
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Tubular boiler
(gcide) | Boiler \Boil"er\, n.
1. One who boils.
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2. A vessel in which any thing is boiled.
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Note: The word boiler is a generic term covering a great
variety of kettles, saucepans, clothes boilers,
evaporators, coppers, retorts, etc.
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3. (Mech.) A strong metallic vessel, usually of wrought iron
plates riveted together, or a composite structure
variously formed, in which steam is generated for driving
engines, or for heating, cooking, or other purposes.
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Note: The earliest steam boilers were usually spheres or
sections of spheres, heated wholly from the outside.
Watt used the wagon boiler (shaped like the top of a
covered wagon) which is still used with low pressures.
Most of the boilers in present use may be classified as
plain cylinder boilers, flue boilers, sectional and
tubular boilers.
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Barrel of a boiler, the cylindrical part containing the
flues.
Boiler plate, Boiler iron, plate or rolled iron of about
a quarter to a half inch in thickness, used for making
boilers and tanks, for covering ships, etc.
Cylinder boiler, one which consists of a single iron
cylinder.
Flue boilers are usually single shells containing a small
number of large flues, through which the heat either
passes from the fire or returns to the chimney, and
sometimes containing a fire box inclosed by water.
Locomotive boiler, a boiler which contains an inclosed fire
box and a large number of small flues leading to the
chimney.
Multiflue boiler. Same as Tubular boiler, below.
Sectional boiler, a boiler composed of a number of
sections, which are usually of small capacity and similar
to, and connected with, each other. By multiplication of
the sections a boiler of any desired capacity can be built
up.
Tubular boiler, a boiler containing tubes which form flues,
and are surrounded by the water contained in the boiler.
See Illust. of Steam boiler, under Steam.
Tubulous boiler. See under Tubulous. See Tube, n., 6,
and 1st Flue.
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