Specification of Arthur Woolf : steam and other boilers.

  • Woolf, Arthur.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Arthur Woolf : steam and other boilers. Source: Wellcome Collection.

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    Woolfs Improved Apparatus for Converting Water, cfa. into Steam. made sufficiently close to resist the great expansive force of the steam, and provided they can be opened when necessary for the purpose of cleaning. In cases where it may be wished to increase the power or production of steam without employing the very high degrees of heat which boilers constructed on the principles before described are capable of sustaining, my Invention may be 5 applied to boilers already in use, as in the case of the common oblong boiler, now in very common use for steam engines. To increase very considerably the quantity of steam produceable by such a boiler, my Invention may be applied in the following or any analogous manner. Fig. 11 represents a common oblong boiler of a steam engine, and Fig. 12, an end view of the same. The lo flame is made to pass through the body of the boiler by a channel, pipe, or flue F, F, Figs 11 and 12; the bottom m is arched, as shewn in Fig. 12, and marked by the line m, m, in Fig. 11. Below such a boiler, place the tubes a, a, a, a, a, a, a, a, a, a, connecting each of them with the body of the main boiler by a pipe P. Fig. 12, and let the ends of the tubes at C, Fig. 12, be fur- 15 nished with moveable covers, to be taken off at pleasure, for the purpose of cleaning out the tubes when that may be necessary; the arrows in the Drawing shew the course of the flame from the fire-place A till it enters the flue F, which passes through the body of the boiler. Another very powerful boiler, on similar principles, may be made by constructing an oblong boiler in two main 20 parts A and B, Fig. 13, and connecting the two by vertical tubes, as shewn in that Figure and in the horizontal section through the line a, b, Fig. 13, repre¬ sented in Fig. 14, in which the arrows shew the direction of the flame. To give any further illustration of the great variety of modifications of which my Invention is susceptible is unnecessary, as in the foregoing descriptions I have 25 endeavoured to be as clear and explicit as possible, that the public may fully enjoy the benefit of my Invention when the term of my Patent is expired; and from the examples I have given, no person acquainted with the nature and uses of boilers can be at a loss to apply my said Invention, modified according to circumstances, to any case that may present itself. It may not be improper, 30 however, to call the attention of those who may hereafter wish to construct such apparatus to one circumstance, which, indeed, can hardly escape notice from the description which I have given, namely, that in every case the tubes composing the boiler should be so combined and arranged, and the furnace so constructed as to make the fire, the flame, and heated air to act around, over, 35 and among the tubes, embracing the largest possible quantity of their surface. It must be obvious to any one that the tubes may be made of any kind of metal, but I prefer cast iron as the most convenient. The size of the tubes may be varied, but in every case care should be taken not to make their
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