Recent improvements in arts, manufactures, and mines : being a supplement to his Dictionary (1844)
Ure, Andrew, 1778-1857, Ure, Andrew, 1778-1857. Dictionary of arts, manufactures, and mines · London : Printed for Longman, Brown, Green, and Longmans · leaf 163
y the fire. 77 78 Fig. 79. is a welding furnace ; the interior dimensions and the casing of the hearth being different, as well as the fire bridge, from those of the puddling furnace. The pipes for conducting the gases are made of cast-iron, and must have at least a sectional area of one foot for… … air is forced into the furnace by any sort of blowing machine, or in any other con- venient way. The fuel is introduced into the fire-place, upon the grate n n, through the door a, which can be closed. The fire-place must contain as much fuel as will last for several hours. When the fire is first…
Industrial arts · Technology
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