Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 149
ans so efficient for raising steam as an equal amount of horizontal surface, such asthe tops of the same flues. The reason of this is sufficiently obvious; as the steam, in the first case,rising perpendicularly from each portion of the surface of the metal, forms a film or stratum of vaporin… … BOILERS. 147 contact with it. From the same cause, the flat bottom of an internal metal flu * is very inefficient a«heatino- surface; and it is also found that plates which are liable to be exposed in this manner toimperfect contact with the water, either as side or bottom surface, are subject to a…
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Catalogue des monuments et inscriptions de l'Égypte antique / publié sous les auspices de S.A. Abbas II Helmi par la direction générale du Service des antiquités [de l'Égypte] ; par J. de Morgan, U. Bouriant, G. Legrain, G. Jéquier, A. Barsanti (1894)](https://img.insideoutlibrary.com/img/200/ia-cataloguedesmonu22egyp-73-177.webp)
![An illustration from Catalogue des monuments et inscriptions de l'Égypte antique / publié sous les auspices de S.A. Abbas II Helmi par la direction générale du Service des antiquités [de l'Égypte] ; par J. de Morgan, U. Bouriant, G. Legrain, G. Jéquier, A. Barsanti (1894)](https://img.insideoutlibrary.com/img/200/ia-cataloguedesmonu21egyp-116-192.webp)