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, $c. into Steam. and a, a, a, a, a, a, a, a, the smaller ones. The fire, which rests upon the bars at B, being reverberated from the arch which passes over the two first smaller cylinders, goes under the third, over the fourth, under the fifth, over the sixth, under the seventh, and partly over, partly under, the eighth smaller cylindric 5 tube. The direction of the flame, till it reaches the last-mentioned tube, is shewn by the dotted curved line and arrows. When it has reached that end of th% furnace, it is carried by the flue C to the other side of a wall built under and in the direction of the main cylinder A, and then returns under the seventh smaller cylinder, over the sixth, under the fifth, over the fourth, under the third, 10 over the second, and partly over, partly under, the first, when it passes into the chimney. The wall before mentioned, which divides the furnace longitudi¬ nally, answers the double purpose of lengthening the course which the flame and heated air have to traverse, giving off heat to the boiler in their passage, and of securing from being destroyed by the fire the flanges or other joinings 15 employed to unite the smaller tubes to the main cylinder. The ends of the smaller cylindric tubes rest on the brickwork which forms the sides of the furnace, and one end of each of them is furnished with a cover, secured in its place by screws or any other adequate means, but which can be taken off at pleasure, to allow the tubes to be freed from time to time from any incrustation 20 or sediment which may be deposited in them. To any convenient part of the main cylinder a steam tube or steam tubes are affixed, to convey the steam to the steam engine or to any vessel intended to be heated by means of steam. Fig. 4 is a view and cross section of two such boilers as I have been describing and their furnaces, in whieh A, A, represent the two main cylinders, a, a, two 25 of the smaller cylinders, having the joining between them and the main cylinders built into the walls W, W, which divide the furnaces F, F, F, F, longitudinally, as before mentioned. From A, A, rise the steam tubes S, S, which convey the steam to any part desired by means of the tubes T, T, T. The fuel is intro¬ duced into the fire-places P, P, at the mouth-pieces M, M, which I have here 30 represented of the form adopted by Mr. John Roberton, of Glasgow, and for which he has obtained His Majesty’s Royal Letters Patent. Of course this method cannot be employed by any person without the license of the Patentee, nor do I claim any other right to it than what any one may purchase, nor is it essential to my apparatus, as any of the doors in common 35 use for furnaces will answer; but I prefer his for reasons not necessary to be detailed in this place. B, B, are the bars of the furnaces, and Z, Z, the ash pits. The brick or mason work is represented in yellow. Figs 5, 6, 7, and 8, are sec¬ tions of another boiler, constructed on principles similar to the onejust described, but having the cylindric tubes of which it is composed arranged and combined