17. Both horn and shell combs are often stamped with figures, and otherwise ornamented with carved work. In the latter case, the ornaments are produced, by removing a part of the material with a saw and graver. The saw employed is not more than the twelfth of an inch in width; and, being fastened to a frame, it is moved up and down, with great rapidity, by means of the foot, while the part of the comb to be cut away is applied to the teeth. The operator is guided in the work by a pattern, which has been struck on paper from an engraved plate.
18. Combs for dressing and cleansing the hair, are made of horn, shell, bone, ivory, and wood; but it is unnecessary to be particular in describing the manner in which every kind of comb is manufactured. We will only add, that the teeth of fine ivory and bone combs are cut with a buzz, or circular saw, which, fastened to a mandrel, is moved in a lathe.
THE BRUSH-MAKER.
1. There are few manufactured articles in more general use than brushes. This has arisen from their great utility, and the low prices at which they can be purchased. The productions of the brush-maker's labor are denominated variously, according to the purposes to which they are to be applied.
2. The operations connected with this business are very simple, as there is scarcely a tool employed which is not familiar to every other class of mechanics. The brush-maker, however, does not manufacture every part of the brush. He procures his wooden stocks and handles from various sources, but chiefly from the turner, and bone handles, from the tooth-brush handle-maker.
3. The first part of the process which may be considered as belonging particularly to the brush-maker, consists in boring the holes for the reception of the bristles. This is done with a bit of a proper size, which is kept in motion with a lathe, while the wood is brought against it with both hands. To enable the operator to make the holes in the right place and in the proper direction, a pattern is applied to the hither side of the stock.
4. The greater part of the bristles used by the brush-makers in the United States, are imported from Russia and Germany. Large quantities, however are obtained from Pennsylvania, and some parts of the Western States. American bristles are worth from thirty to fifty cents per pound, a price sufficiently high, one would suppose, to induce the farmers to preserve them, when they butcher their swine. Were this generally done, a tolerable supply of the shorter kinds of bristles might be obtained in our own country.
5. When the bristles come into the hands of the brush-maker, the long and short, and frequently those of different colors, are mixed together. These are first assorted, according to color; and those of a whitish hue are afterwards washed with potash-ley and soap, to free them from animal fat, and then whitened by bleaching them with the fumes of brimstone.
6. The bristles are next combed with a row of steel teeth, for the purpose of placing them in a parallel direction, and with a view of depriving them of the short hair which may be intermixed. The workman, immediately after combing a handful, assorts it into separate parcels of different lengths. This is very readily done, by pulling out the longest bristles from the top, until those which remain in the hand have been reduced to a certain length, which is determined by a gauge marked with numbers. At each pulling, the handful is reduced in height near half an inch.
7. The stocks and the bristles having been thus prepared, they are next fastened together. This is effected either with wire or by a composition of tar and rosin. The wire is used in all cases in which the fibre is doubled; but when the bristles are required in their full length, as in sweeping-brushes, the adhesive substance is employed.