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 . s hot-calenderedto give it luster. The shuttle for hair-cloth weaving has no pirn, Fig. 2355. ever, European polecat, raccoon, goat, or other ani-mal, are used for brushes of diHerent qualitiiS. A snudl tuft of the hairs is collected with thepoints all in one direction, and the bunch is boundby a strong thread, and point Krst through awet (juill, so that


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 . s hot-calenderedto give it luster. The shuttle for hair-cloth weaving has no pirn, Fig. 2355. ever, European polecat, raccoon, goat, or other ani-mal, are used for brushes of diHerent qualitiiS. A snudl tuft of the hairs is collected with thepoints all in one direction, and the bunch is boundby a strong thread, and point Krst through awet (juill, so that the point projects to the requireddistance. The quill shrinks tiglitly upon the bunchin drying. The various sizes require the quills of the crow,pigeon, goose, turkey, or swan. Larger bunches aresecured in tin-plate tubes. The ancient Greek painters used hair-pencils andpalettes. They are now principally used by artists in water-colurs, and to some extent by house and sign paint-ers in lettering, graining, and other tine work. Hair-picker. A machine for cleansing andstraightening hair. The one represented is for op-erating on loose The two rollers have similarrotation by connection with a common motive wheel, Fig. Hair-Clotk Loom. butin its placea spring catchto hold theends of thehairs formingthe weft. Theshuttle is thenthrown to car-ry the hairthiough the shed ; at the other end of the shuttle-way hairs are releaseil by raising the catch. In the illustration, the moving jaws of the ni|i- pers are raised by cams to allow the introduction of the hairs, and are opened by cams at ditferent tinus to drop the hairs at ditferent positions in the A pair of dividers, one of the legs of whicli is provided with a set screw and spring, admitting of very nice adjustment. Hair-cord. (Fabrie.) A cotton , the warp of which consists of conled A dividing compass having one leg arranged for minute movements by a screw ; used for


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Keywords: ., bookcentury1800, booksubjectin, booksubjectmechanicalengineering