Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 898
the cylinder; if the weakest part, at c, is nowheld in the flame it will be blown out and burst. The cylinder having thus been opened as representedin Fig. 2136, the next object is to extend the somewhat uneven and thick margin of the aperture, andreduce it to the proper dimensions, whilst at the… … According to the size of the cylinder, it may be either blown at once, or it will require to be reheatedseveral times. When very long and wide cylinders are blown, the lower portion is liable to becometoo thin; an extra portion of glass must then be incorporated with it before the opening process.…
Mechanical engineering
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