On the smokeless fire-place, chimney-valves, and other means, old and new, of obtaining healthful warmth and ventilation

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Longman, Brown, Green, and Longmans, 1855 - Fireplaces - 232 pages
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Page 29 - ... who is assuming that the hearth, floor, and carpet, being parts of the same level, are in the same predicament — the truth being, however, that in such a case the hearth within the fender gets nearly all the downward rays, and the carpet almost none — as a candle held before a looking-glass at a moderate distance diffuses its heat pretty uniformly over the whole, but if moved close to one part of the glass it overheats, and probably cracks, that part, leaving the rest unaffected. A low fire...
Page 11 - ... grate. The whole of the air so contaminated, and which may be in volume, twenty, fifty, or even a hundred times greater than that of the true smoke, or burned air, is then all called smoke, and must all be allowed to ascend away from the room that none of the true smoke may remain. It is evident, then, that if a cover or hood of metal be placed over a fire, as represented by the letters...
Page 139 - M is the coal intensely ignited below where the fresh air maintains combustion, but colder gradually as it is further up. Only the coal in the fire-grate below, where the fresh air has access to it through the fire-bars, can be in a state of active combustion.
Page 124 - A window with the usual accuracy of fitting is held to allow about eight feet of air to pass by it in a minute ; and there should be for ventilation at least three feet of air a minute for each person in the room. According to this view, the quantity of steam-pipe or vessel needed, under the...
Page 61 - ... flap hanging against the inside, to prevent the issue of smoke in gusty weather. The decided effect produced at once on the feelings of the inmates was so remarkable, that there was an extensive demand for the new appliance, and, as a consequence of its adoption, Mr. Toynbee had soon to report, in evidence given before the Health of Towns...
Page 125 - Which is 20 feet of pipe, 4 inches in diameter, or any other vessel having the same extent of surface, — as a box two feet high, with square top and bottom of about eighteen inches.
Page 138 - The dotted lines and small letters mark the internal stove, and the entire lines, the external case or covering. The letters ABCD mark the external case, which prevents the intense heat of the inner stove, abed, from damaging the air of the room. F ia the regulating- valve, for admitting the air to feed the fire.
Page 33 - A man's chest contains nearly two hundred cubic inches of air, but in ordinary breathing he takes in at one time and sends out again only about twenty cubic inches — the bulk of a full-sized orange — and he makes about fifteen inspirations per minute.
Page 139 - The letters ff mark the fire-brick lining of the firebox or grate, which prevents such cooling of the ignited mass as might interfere with the steady combustion. H is a hopper, or receptacle with open mouth below, suspended above the fire like a bell, to hold a sufficient charge of coal for 24 hours or more, which coal always falls down of itself, as that below it in the fire-box is consumed.
Page 67 - Air. And produces. 4. Steady boiling heat of 212 degrees by quick combustion. 5. Smoke from the chimney, or air loaded with carbonic acid and vapour. 6. Ashes, part of the fuel which does not burn. 7. Motive force, of simple alternate push and pull in the piston, which, acting through levers, joints, bands, &c., does work of endless variety. The animal body in life, takes — 1.

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