The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . WITH NOTES. 543 He figures a blow-pipe for glass-working, as in tlicannexed engraving, which he thus describes :—. u Let there be a vessell of coppei- about the bignesseof a common foot-ball, as A ; let it have a long pipe atthe top as D, which must be made so that you mayupon occasion screw on lesser, or bigger vents madefor the purpose. Fill this one-third part with water, andset it over a furnace of coals, as E, G, H, I, and
The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . WITH NOTES. 543 He figures a blow-pipe for glass-working, as in tlicannexed engraving, which he thus describes :—. u Let there be a vessell of coppei- about the bignesseof a common foot-ball, as A ; let it have a long pipe atthe top as D, which must be made so that you mayupon occasion screw on lesser, or bigger vents madefor the purpose. Fill this one-third part with water, andset it over a furnace of coals, as E, G, H, I, and whenthe water beginneth to heat, there will come a strong-breath out of the nose of the vessel, that will force theflame of a lampe placed at a convenient distance as K.—Page 158. Sir Hugh Plat, in his Jewel House of Art and Na-ture, 1594, gives an account of the ordinary fire-blowing iEolipile. He says :— A round ball of copperor lattin, that will blow the fire very strongly, only by the attenuation of waterinto air; which device willalso serve to perfume with.—A round ball of copperor lattin, of the bigness ofa small bowl—a roundpipe or neck, of 3 or 4inches in length, less thana goose quill — and anelbow of a less pipe nobigger tlian a straw, whose
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinventions, bookyear1
