Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . the cylinder is placed in the furnace previous to being laid on the flatting-stone e ; h is the openingthrough which the workman spreads the cylinder into a flat sheet of glass ; / is the opening throughwhich the sheet of glass is removed to the table or bed //, in the compartment b. The upper side ofthe table ,7 is made of stone, similar to that employed as the flattening surface. It is fixed to aniron framework on wheels, and is kept at a proper degree of heat by remaining in the fur
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . the cylinder is placed in the furnace previous to being laid on the flatting-stone e ; h is the openingthrough which the workman spreads the cylinder into a flat sheet of glass ; / is the opening throughwhich the sheet of glass is removed to the table or bed //, in the compartment b. The upper side ofthe table ,7 is made of stone, similar to that employed as the flattening surface. It is fixed to aniron framework on wheels, and is kept at a proper degree of heat by remaining in the furnace, asshown in the drawing. The carriage runs on a railway in front of the annealing-arches, where thesheet is transferred in the usual way. The cylinder is placed on the flatting-Stone, and is split lengthwise by passing a red-hot iron bar kfrom end to end, a little charcoal powder being previously sprinkled on the inner surface of the cylinder. It is now spread out into a sheet by pressing the same on the flatting-stone, by means ofa small block of elder-wood, fixed on an iron bar m. The temperature at which the flatting is per-formed is such that the operation does not occupy more than a minute. Two improvements have been introduced in this operation. One consists in making part of thefloor of the compartment a to consist of a movable stone about 10 inches in diameter, on which the 2170. />? i
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
