. Commercium philosophico-technicum; or, The philosophical commerce of arts: designed as an attempt to improve arts, trades, and manufactures . nthe right hand. The right fide furnace at the bottom of the plate is forfufion without a grate or among the fuel. The pot is ofthe largeft fize, and its height may be occafionally enlargedby the ring cut off from the dome of the foregoing the Hoping canal in its bottom is fitted the lower partof another pot. See page 21. The lowermofl: furnace on the left hand is that defcribcdin page 27, in which fireams of air are impelled from dif-ferent
. Commercium philosophico-technicum; or, The philosophical commerce of arts: designed as an attempt to improve arts, trades, and manufactures . nthe right hand. The right fide furnace at the bottom of the plate is forfufion without a grate or among the fuel. The pot is ofthe largeft fize, and its height may be occafionally enlargedby the ring cut off from the dome of the foregoing the Hoping canal in its bottom is fitted the lower partof another pot. See page 21. The lowermofl: furnace on the left hand is that defcribcdin page 27, in which fireams of air are impelled from dif-ferent parts of the fuel upon the crucible in the lower pot is that which ferves for the blaft the upper part of the plate -, and the perforated pot is ofthe fize 90, with its bottom rounded, and a part of the topcut off for the greater convenience of infpediing or takingout the crucible. The circular plane over it is an iron platewith a hole in the middle, which ferves as a cover for thepot; and over this is a tranfverfe fedlion of the perforatedpot and crucible, to (hew the diredtion of the ftreams of air. v^^ 3d JJ^a/r.
Size: 1339px × 1866px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlewiswilliam17081781, bookidcommerciumph, bookyear1763
