Part 9

12. Manufacturers of soap have contrived various methods of adulterating this article, or of adding ingredients which increase its weight, without adding to its value. The most common means employed for this purpose is water, which may be added, in some cases, in considerable quantities, without greatly diminishing the consistence of the soap.

13. This fraud may be detected by letting the soap lie for some time exposed to the atmosphere. The water will thus be evaporated, and its quantity can be known by weighing the soap, after its loss of the superfluous liquid. To prevent evaporation, while the soap remains on hand, it is said, that some dealers keep it in saturated solutions of common salt. Another method of adulteration is found in the use of pulverized lime, gypsum, or pipe-clay. These substances, however, can be easily detected by means of a solution in alcohol, which precipitates them.

14. The process of manufacturing soft soap, differs but little in its details from that described in the preceding paragraphs. The chief difference consists in omitting the use of salt. Soft soap, therefore, is composed of a greater proportion of water, and more alkali than is necessary to saturate the unctuous matters. Soft soap is made by almost every family in the country, from ashes, grease, and oily matters, reserved for the purpose.

15. The celebrated Marseilles white soap, is composed of

Soda, 6. Olive-oil, 60. Water, 34.

Castile soap, of

Soda, 9. Olive-oil, 76.5. Water, with a little coloring matter, 14.5.

Fine toilet-soaps are made with oil of almonds, nut-oil, palm-oil, suet, or butter, combined with soda or potash, according to their preparation in a solid or pasty state.

16. In the manufacture of white soap, the tallow is more carefully purified, and no rosin is used. In other particulars, the process differs but little from that employed in the production of the common kind. Two tons of tallow should yield three tons of white soap. In making the same quantity of common brown or yellow soap, twelve hundred weight less is required, on account of the substitution of that amount of yellow rosin.

17. The mottled appearance of some soaps is caused by dispersing the ley through it, towards the close of the operation, or by adding a quantity of sulphate of iron, indigo, or the oxide of manganese. Castile soap, now manufactured in the greatest perfection at Marseilles, in France, receives its beautifully marbled appearance from the sulphate of iron.

THE CANDLE-MAKER.

1. The subject of the candle-maker's labors may be defined to be a wick, covered with tallow, wax, or spermaceti, in a cylindrical form, which serves, when lighted, for the illumination of objects in the absence of the sun. The business of candle-making is divided into two branches; the one is confined to the manufacturing of tallow candles, and the other, to making those composed of wax or spermaceti.

2. The process of making candles from tallow, as conducted by the tallow-chandler, needs only a brief description, since it differs but little from the method pursued by families in the country, with which most persons are familiar. The difference lies chiefly in the employment of a few conveniences, by which the candles are more rapidly multiplied.

3. The first part of the process consists in preparing a wick, to serve as a foundation. The coarse and slightly twisted yarn used for this purpose, is spun in the cotton-factories; and, being wound into balls, is, in that form, sold to the tallow-chandlers, as well as to individuals who make candles for their own consumption.

4. A sufficient number of threads is combined, to form a wick of a proper size; and, as they are wound from the balls, they are measured off, and cut to the proper length, by a simple contrivance, which consists of a narrow board, a wooden pin, and the blade of a razor. The pin and razor are placed perpendicular to the board, at a distance determined by the length of the proposed wick. The wicks are next put upon cylindrical rods, about three feet long; and a great number of these are arranged on a long frame.

5. To obtain the tallow in a proper state for use, it is separated from the membranous part of the suet, by boiling the latter in an iron or copper kettle, and then subjecting the _cracklings_ to the action of a press. The substance that remains, after the tallow has been expressed, is called _greaves_, which are sometimes applied to fattening ducks for market. This is especially the case in the city of London.

6. The _tried_ tallow is prepared for application to the wicks, by heating it to a proper temperature. It is then poured into a suitable receptacle, where it is kept in _order_ either by a moderate fire underneath, or by the occasional addition of hot tallow.

7. The _broaches_, as the sticks with their wicks are called, are taken up, several at a time, either between the fingers or by means of a simple instrument denominated a _rake_, and dipped into the tallow. They are then returned to the frame, and suffered to cool, while successive broaches are treated in the same way. The dipping is repeated, until the candles have been thickened to the proper size.

8. In the preceding plate, is represented a workman in the act of dipping several broaches of candles, suspended on a rake, which he holds in his hands. The mode of making dipped candles just described, is more generally practised than any other, and in this manner five or six hundred pounds can be made by one hand, in a single day. In some establishments, however, a more complicated apparatus is used, by which every part of the process is greatly expedited.

9. Mould candles are made very differently. The moulds consist of a frame of wood, in which are arranged several hollow cylinders, generally made of pewter. At the lower extremity of each cylinder, is a small hole, for the passage of the wick, which is introduced by means of a hook on the end of a wire. The cotton is fastened at the other end, and placed in a perpendicular situation in the centre of the shafts, by means of a wire, which passes through the loops of the wicks. The melted tallow, having been poured on the top of the wooden frame, descends into each mould. After the candles have become sufficiently cold, they are extracted from the cylinders with a bodkin, which is inserted into the loop of the wick. One person can thus mould two or three hundred pounds in a day.

10. Candles are also made of bees-wax and spermaceti; but the mode of their manufacture differs in no particular from that of common mould candles. The wicks for wax-candles are usually made of a peculiar kind of cotton, which grows in Asiatic Turkey.

11. Before the wax is applied to this purpose, the coloring matter is discharged. This is effected by bleaching the wax, in the following manner. It is first divided into flakes, or thin laminæ, by pouring it, in a melted state, through a colander upon a cylindrical wheel, which, at the same time, is kept revolving, while partly immersed in cold water. The wax, having been removed from the water, is placed upon a table or floor covered with some kind of cloth. Here it is occasionally sprinkled with water, until the bleaching has been completed. The process occupies several weeks, or even months, according to the state of the weather, that being best which is most favorable to a rapid evaporation.

12. Spermaceti is a substance separated from sperm oil, which is obtained from a species of whale, called _physeter macrocephalus_, or _spermaceti cachalot_. This oil is obtained from both the head and body of the animal, but that procured from the former contains twice the quantity of spermaceti.

13. To separate the spermaceti from the oil yielded by the body, it is first heated, then put into casks, and suffered to stand two or three weeks, in order to _granulate_. The oily part is now filtrated through strainers; and the remainder, which is called _foots_, is again heated, and put into casks. After having stood several weeks, these are put into bags, and submitted to the action of a powerful press. The spermaceti thus obtained, is melted and moulded into cakes. The oil thus separated from the spermaceti, is called spring or fall strained; because it is filtered and expressed only during those seasons of the year.

14. The oil from the head of the whale is treated like that from the body, in almost every particular. The difference consists, principally, in omitting the use of the strainer, and in the employment of stronger bags and a more powerful press. The oil obtained from the _head-matter_, is called _pressed_, since it is separated by the action of the press only. It is also denominated _winter-strained_, because the operation is performed in the cold weather.

15. The spermaceti, having been melted and moulded into cakes, is reserved until the succeeding summer, when it is cut into thin shavings, by means of a large shave, similar to the _spoke-shave_ of the wheelwrights, and again pressed as before. The oil of this last pressing is called _taut pressed_, and is the least valuable kind, since a slight degree of cold causes it to become thick. The spermaceti obtained from the oil of the body, and that from the head-matter, are melted together, and purified by means of potash-ley.

16. The sperm-oil, thus freed from the spermaceti, is extensively used in lamps as a means of illumination; and, for many purposes, it is far more convenient than tallow. In the country, lard is frequently employed instead of oil, especially by the German population. In some European and Asiatic countries, vegetable oils supply the place of animal fats, in this application.

17. The origin of the art of making candles is not known. It is evident, however, that the business is comparatively modern, since the Greeks and Romans, as well as other nations of antiquity, employed torches of pine and fir, and lamps supplied with oil, in the production of artificial light. The words in the Scriptures translated _candle_, imply nothing more nor less than a light produced by some kind of oil consumed in a lamp.

18. The lamps in ancient times were suspended by a chain or cord from the ceiling, or supported on stands and moveable tables, which were called by the Romans _lampadaria_, or _candelabra_. Many specimens of this utensil are preserved in several museums of Europe, and some have lately been found in the ruins of Herculaneum.

19. The Chinese make their candles from the tallow obtained from the seeds and capsules of the tallow-tree. This tree, which is produced in great abundance in China, is said to grow in various parts of South Carolina and Georgia. In appearance, it resembles the Lombardy poplar.

THE COMB-MAKER, AND THE BRUSH-MAKER.

THE COMB-MAKER.

1. The comb is a well-known instrument, employed in cleansing, dressing, and confining the hair. It is made of various materials, but most commonly of tortoise-shell, the horns and hoofs of cattle, ivory, bone, and several kinds of hard wood.

2. It is impossible to determine the period of the world at which it was introduced, since history and tradition, the sources from which we obtain information of this nature, are silent with regard to its origin. It is evident, however, that the comb is an instrument of primary necessity; and hence it must have been invented in the earliest ages. This opinion is confirmed by the fact, that the comb has been frequently found in use amongst savages, when first visited by civilized men.

3. Combs employed in fixing the hair, are made of tortoise-shell, or of the horns of cattle. The genuine tortoise-shell is taken from the _testudo imbricata_, or _hawk's-bill turtle_; but a kind of shell, inferior in quality, is obtained from the _testudo caretta_, or _loggerhead turtle_. These turtles inhabit the seas of warm and temperate climates; but they are especially numerous in the West Indian seas, where _shell_ is a valuable article of commerce. That from St. Domingo is especially esteemed for its brilliancy of shade and color.

4. The shell of the hawk's-bill turtle was extensively employed for ornamental purposes by the refined nations of antiquity; although we have no account of its application to the manufacture of combs. The Greeks and Romans decorated with it the doors and pillars of their houses, as well as their beds and other furniture. The Egyptians dealt largely with the Romans in this elegant article.

5. The general length of the hawk's-bill turtle is about three feet from the bill to the end of the shell; but it has been known to measure five feet, and to weigh five or six hundred pounds. In the Indian Ocean, especially, specimens of prodigious magnitude are said to have occurred.

6. The shell employed in the arts, grows upon the back and feet of the animal. That on the back, consists of thirteen laminæ, or plates, which lap over each other, like tiles on the roof of a house. The plates vary in thickness from one-eighth to one-fourth of an inch, according to the age and size of the turtle. The quantity of merchantable shell obtained from a single subject of the usual size, is about eight pounds, which, at the usual price, is worth sixty or seventy dollars.

7. The process of making combs from the horns of cattle, is not difficult to be understood. The tips and buts are first cut off with a saw, and the remaining portion is also divided longitudinally on one side with the same instrument. The horns are then soaked for several days, and afterwards boiled in oil, to render them pliable. They are next spread out and pressed between hot iron plates. This operation clarifies the horn, and produces a plate of proper thickness.

8. After the plates thus produced, have been cut in pieces corresponding in size to the proposed combs, and when these have been shaved to a suitable thickness with instruments adapted to the purpose, the teeth are cut either with a _twinning saw_, as represented in the preceding cut, or with a _twinning machine_.

9. In the former case, the plate is fastened with a wooden _clamp_, by the part which is designed to be left for the back of the comb; and when twins, or two combs, are to be formed from one piece, the other end is bent down, so as to render the upper surface considerably convex. To this surface the _twinning saw_ is applied by the hand of the workman, who makes a number of incisions; which are completed both ways with two different kinds of saws, and the end of each tooth is cut from the back of the opposite comb with an instrument called a _plugging awl_.

10. The _twinning machine_ was invented, about twenty years ago, by a Mr. Thomas, of Philadelphia; but it has been successfully improved by several individuals since that time. It is, altogether, an ingenious and useful contrivance. The cutting part consists of two chisels, which are made to act on the plate alternately, and in a perpendicular direction, each chisel cutting one side of two teeth, and severing one from the opposite back, at every stroke. It is impossible, however, to form a clear conception of the manner in which the machine operates, except by actual inspection. It performs the work with great rapidity; since from one to two hundred dozens of combs can be cut in twelve hours; whereas, not one-fourth of that number can be _twinned_ in the old method, during the same time.

11. After the teeth have been rounded, and in other respects brought to the proper form with suitable instruments, the combs are polished by rubbing them first with the dust of a peculiar kind of brick, then by applying them to a moving cylinder covered with buff leather, charged with rotten-stone, ashes, or brick-dust; and, finally, by rubbing them with the hand, charged with rotten-stone and vinegar.

12. The combs are next colored, or stained; and, as the tortoise-shell is by far the best and most expensive material for this kind of comb, the great object of the manufacturer is to produce colors as nearly resembling those of the real shell as practicable. This is done in considerable perfection, in the following manner:

13. The combs are first dipped in aqua-fortis, and then covered with a paste made of lime, pearlash, and red lead. To produce the requisite variety of shades, both taste and judgment are necessary in applying the composition, and in determining the time which it should remain upon the combs. To give the combs a still stronger resemblance to shell, they are also immersed for fifteen or twenty minutes in a dye of Nicaragua.

14. The combs having been covered with oil, they are next heated upon iron plates, and brought to the desired shape by bending them upon wooden blocks with a woollen list. The whole process is finished by rubbing off the oil with a silk handkerchief.

15. The general process of making shell combs differs but little from that which has been just described, varying only in a few particulars, in compliance with the peculiar nature of the material.

16. On account of the great value of shell, the workmen are careful to make the most of every portion of it; accordingly, when a piece falls short of the desired size, it is enlarged by _welding_ to it another of smaller dimensions. The union is effected, by lapping the two pieces upon each other, and then pressing them together between two plates of hot iron. The heat of the iron is prevented from injuring the shell, by the interposition of a wet linen cloth, and by immersing the whole in hot water. In a similar manner, broken combs are often mended; and by the same method, two pieces of horn can also be joined together.

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.

8. It is superfluous to enter into detail, to show the manner in which the wire and composition are applied in fixing the bristles, as any person, with an ordinary degree of observation, can readily comprehend the whole, by examining the different kinds of brushes which are met with in every well-regulated household. The bristles, after having been fixed to the stock or handle, are trimmed with the shears or knife, according as they are required to be equal or unequal in length.

9. The brush is next handed over to the _finisher_, who applies to the back of the stock a thin veneer of wood, which secures the wire against the oxidizing influence of the atmosphere, and gives to the brush a finished appearance. The stock, together with the veneer, is then brought to the desired shape with suitable instruments, polished with sand-paper, and covered with varnish.

10. Those brushes which the manufacturer designs to be ornamented, are sent in great quantities to the _ornamenter_, who applies to them various figures, in gold or Dutch leaf, japan or bronze, and sometimes prints, which have been struck on paper from engraved plates.

THE TAVERN-KEEPER.

1. A house in which travellers are entertained is denominated a tavern, inn, coffee-house, hotel, or house of public entertainment; and an individual who keeps a house of this description, is called an inn-keeper or tavern-keeper. Of these establishments there are various grades, from the log cabin with a single room, to the splendid and commodious edifice with more than a hundred chambers.

2. This business is one of great public utility; since, by this means, travellers obtain necessary refreshments and a temporary home, with very little trouble on their part, and that, in most cases, for a reasonable compensation. This is especially the case in the United States, where the public houses, taking them together, are said to be superior to those of any other country.