Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . to confer the samea]»pearauee upon otliei- leather by pressure. Graining-nia-chine. 1. A roller with a pat-tern surface representing the grain of wood, and usedto transfer the pattern in paint to wood. In theexample (Fig. 2287), the roller is an elastic air-bag,which receives its paint from an endless graining-belt. In the graining-machine for buckets the pail i
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . to confer the samea]»pearauee upon otliei- leather by pressure. Graining-nia-chine. 1. A roller with a pat-tern surface representing the grain of wood, and usedto transfer the pattern in paint to wood. In theexample (Fig. 2287), the roller is an elastic air-bag,which receives its paint from an endless graining-belt. In the graining-machine for buckets the pail isplaced on a bloi;k rotated by a winch, and the pat-tern roller is brought alternately in contact with the Fij:. 22S7 pail and inking-roUer by the action of a treadle andwidghted cord. The surface of the pattern ndler ismade in removable segments, so that the |)atternnniy be varied in imitation of staves of dilierentwoods. 2. {Leather Manufuclurc.) A machine havingrollers with raised, parallel, straiglit, or diagonalthreads, which indent the goat or .sheeji skins andconfer the wrinkled appearance to morocco leather. In the example, the liorizontal table vibrates lie-ueatli the swinging sectoi, whose surface has the Fig. Grainin§-Machine. grained pattern which is to be impressed upon theleather which is between the sector and the graining is sometimes given by hand, by boardsor rollers pressed upon the grain side of the leather. G-raining-tool. Hand-tools resembling condjs(Fig. 22S7), for imitating in painting the lines whichrepresent the growths of timber. A light-coloredcoat of paint is allowed to dry and a darker coat laidover it. While this is yet damp, it is marked by thegraining-tool, which removes some of the darkerjiaint and leaves white stripes behind it. Tlie grain-ing-tools are of steel, horn, wooil, or leathei-, are ofdifferent grades of fineness, and have varying num-bera of teeth. Grain-leather. 1. Dressed horse-hides. 2. Guat, seal, and other sk
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