top-cock, ft, is for drawing oft* the oil when necessary, and a similar pipe and stop-cock, /, is intended to draw off the sirop from the evaporating vessel. The foregoing explanation refers in particular to the manufacture of sugar, because it is conceived that its application to this branch of… … Patent granted to James Collier, of Newman street , Oxford street , in the Parish of St « Mary 4e-b one, Civil Engineer ; and Henry Pinkus, of Thayer street , Manchester Square , in the county of Middlesex , Gentleman, for an improved method and apparatus for generating Gas for Illumination . —…
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