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A typical Cochran boiler, as illustrated, [5] might be 15 feet (4.57 m) high and 7 feet (2.13 m) in diameter, giving a heating surface of 500 square feet (46.45 m 2), and a grate area of 24 square feet (2.23 m 2). Working pressure is between 100 and 125 psi (6.9 and 8.6 bar; 690 and 860 kPa).
A vertical boiler is a type of fire-tube or water-tube boiler where the boiler barrel is oriented vertically instead of the more common horizontal orientation. Vertical boilers were used for a variety of steam -powered vehicles and other mobile machines, including early steam locomotives .
The Stanley boiler is constructed of a seamless copper tube shell, 13 + 1 ⁄ 2 inches (340 mm) in diameter and 1 ⁄ 16 inch (1.6 mm) thick. The numerous 1 ⁄ 2 inch (13 mm) tubes are densely packed, leaving a very small water volume between them and a high ratio of heating surface to volume, for rapid steam raising.
The horizontal fire-tube boiler is also typical of marine applications, using the Scotch boiler; thus, these boilers are commonly referred to as "scotch-marine" or "marine" type boilers. [2] Vertical boilers have also been built of the multiple fire-tube type, although these are comparatively rare; most vertical boilers were either flued, or ...
A shell or flued boiler is an early and relatively simple form of boiler used to make steam, usually for the purpose of driving a steam engine. The design marked a transitional stage in boiler development, between the early haystack boilers and the later multi-tube fire-tube boilers .
Vertical cross-tube boiler, A cross-tube boiler was the most common form of small vertical boiler. They were widely used, in the age of steam, as a small donkey boiler, for the independent power of winches, steam cranes etc. [1] [2] [3] The boiler has the advantage of simple robust construction, in particular requiring little regular maintenance.
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Boiler types varied in these earlier examples, with vertical boilers dominant in the first decade (as a space saver) and then with very small diameter horizontal boilers. Other examples of steam motor cars incorporated an express-baggage or luggage type car body, with coupling apparatus provided to allow the steam motor car to draw a light ...