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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
contest ensued between the parties to prove priority, and was much debated in the scientific journals of the day. In an application to Congress for a remunerative appropriation of $100,000, the rep- resentatives of Dr. Wells came in with a claim to the first invention. The enterprise failed, but mankind owes a debt of gratitude to each. Amylene is a colorless liquid obtained by distilling fusel oil with chloride of zinc. It was discovered by M. Balard, of Paris, in 1844. First used by Dr. Snow in 1856. Kerosolene was derived from the distillation of coal-tar by Merrill of Boston. Its use as an anaesthetic was made known in 1861. Nitrate of ethyl, of which the chemical formula is C4 H5 O, No5 possesses remarkable anaesthetic properties; it has a very fragrant and agreeable smell, a sweet, but a bitter after taste. Its boiling-point lies at 185° Fahr., and its specific gravity is 1.112 at 62.5° Fahr. It burns with a white flame, is not soluble in water, but easily so in al
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
llar is cut, button-holed, and creased for folding by passing through a pair of rotary compound cutters and dies. 3. The collar is made by machines which automatically complete the collar for wear from a web of paper. A good example of this is Snow's machine. Snow's paper-collar machine. Fig. 3522 is a view of Snow's patent of 1865. The paper is intermittingly fed forward by rollers the width of a collar before each descent of the platen, which carries, arranged in proper relative poSnow's patent of 1865. The paper is intermittingly fed forward by rollers the width of a collar before each descent of the platen, which carries, arranged in proper relative position, (1) a set of end knives and end and middle buttonhole punches, all adjustable to cut different-sized collars; (2) a die having serrated teeth to emboss imitation stitches, which is detachable; and (3) a knife, also adjustable, the front and rear edges of which may be of different curves, for cutting the upper and lower edges of the collar. The bed has corresponding intaglio cutting-dies and a duplicate embossing-die, so as to ornament both sides of the collar. As the ends and button-ho