. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. 260 GARDEN tubes placed over the fire, and united together at top and bottom, the furnace- bars being hollow tubes, through which the return-water passes before entering the upper part of the boiler ; thus producing very rapid circulation, with great economy of fuel. 704. The last, and, as we are informed, not the least effective of the tubular boilers, is that patented by Mr, [Messenger, and by which he proposes to heat the range of houses we have described i
. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. 260 GARDEN tubes placed over the fire, and united together at top and bottom, the furnace- bars being hollow tubes, through which the return-water passes before entering the upper part of the boiler ; thus producing very rapid circulation, with great economy of fuel. 704. The last, and, as we are informed, not the least effective of the tubular boilers, is that patented by Mr, [Messenger, and by which he proposes to heat the range of houses we have described in the preceding pages. The principal feature of this boiler, of which we give an elevation on the preceding page, and of which this is a section, is an arrangement of triangular T tubes, round which the flames play in passing to the flue h. The tubes are horizontal, and placed over and round the fire, so that the heat in its upward course rebounds, as it were, from tube to tube ; so that before it reaches the flue all the latent heat is expended. The furnace-bars are also tubes, through which the return-water passes ; thus preventing them from burn- ing, and increasing the rapidity of the circulation, and re-entering the tubes which form the boiler at a high temperature. It is obvious that the surface exposed to the action of the fire in this boiler is immensely in- creased by the form of the tubes. The boiler-surface entirely surrounds the flames, while, from its horizontal position, sufficient space is allowed for between the fire and the tubes for the introduction of atmospheric air, and the proper commingling of the gases ; a being the brick setting round the boiler, h the flue through which the smoke escapes after passing round the tubes. The large surface of triangular bars exposed to the action of the fire, which in fact foi'm the boiler, and through which water circulates, renders it, according to Mr. Messenger's statement, at once economical in its consumption of fuel,
Size: 1336px × 1871px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbeetonsamue, bookpublisherlondonsobeeton, bookyear1862
