Part 45

Cottonseed hulls or other material containing fiber difficult of digestion are thoroughly mixed with about 5 per cent of their weight of hydrochloric acid (specific gravity, 1.16), and heated in a closed vessel, provided with a stirrer, to a temperature of 212° to 300° F. The amount of acid to be added depends on the material employed and on the duration of the heating. By heating for 30 minutes the above percentage of acid is required, but the quantity may be reduced if the heating is prolonged. After heating, the substance is ground and at the same time mixed with some basic substances such as sodium carbonate, chalk, cottonseed kernel meal, etc., to neutralize the acid. During the heating, the acid vapors coming from the mixture may be led into a second quantity of material contained in a separate vessel, air being drawn through both vessels to facilitate the removal of the acid vapors.

COTTONSEED OIL: See Oil.

COTTONSEED OIL IN FOOD, TESTS FOR: See Foods.

COTTONSEED OIL IN LARD, DETECTION OF: See Foods and Lard.

COUGH CANDY: See Confectionery.

COUGH MIXTURES FOR CATTLE: See Veterinary Formulas. {247}

COUGH MIXTURES AND REMEDIES: See Cold and Cough Mixtures.

«Court Plasters»

(See also Plasters.)

«Liquid Court Plaster.»—I.—If soluble guncotton is dissolved in acetone in the proportion of about 1 part, by weight, of the former to 35 or 40 parts, by volume, of the latter, and half a part each of castor oil and glycerine be added, a colorless, elastic, and flexible film will form on the skin wherever it is applied. Unlike ordinary collodion it will not be likely to dry and peel off. If tinted very slightly with alkanet and saffron it can be made to assume the color of the skin so that when applied it is scarcely observable. A mixture of warm solution of sodium silicate and casein, about 9 parts of the former to 1 part of the latter, gelatinizes and forms a sort of liquid court plaster.

II.—In order to make liquid court plaster flexible, collodion, U. S. P., is the best liquid that can possibly be recommended. It may be made by weighing successively into a tarred bottle:

Collodion 4 av. ounces Canada turpentine 95 grains Castor oil 57 grains

Before applying, the skin should be perfectly dry; each application or layer should be permitted to harden. Three or four coats are usually sufficient.

III.—Procure an ounce bottle and fill it three-fourths full of flexible collodion, and fill up with ether. Apply to cuts, bruises, etc., and it protects them and will not wash off. If the ether evaporates, leaving it too thick for use, have more ether put in to liquefy it. It is a good thing to have in the house and in the tool chest.

COW DISEASES AND THEIR REMEDIES: See Veterinary Formulas.

CRAYONS: See Pencils.

«CRAYONS FOR GRAINING AND MARBLING.»

Heat 4 parts of water and 1 part of white wax over a fire until the wax has completely dissolved. Stir in 1 part of purified potash. When an intimate combination has taken place, allow to cool and add a proportionate quantity of gum arabic. With this mixture the desired colors are ground thick enough so that they can be conveniently rolled into a pencil with chalk. The desired shades must be composed on the grinding slab as they are wanted, and must not be simply left in their natural tone. Use, for instance, umber, Vandyke brown, and white lead for oak; umber alone would be too dark for walnut use. All the earth colors can be conveniently worked up. It is best to prepare 2 or 3 crayons of each set, mixing the first a little lighter by the addition of white lead and leaving the others a little darker. The pencils should be kept in a dry place and are more suitable for graining and marbling than brushes, since they can be used with either oil or water.

CRAYONS FOR WRITING ON GLASS: See Etching, and Glass.

«Cream»

(See also Milk.)

«Whipped Cream.»—There are many ways to whip cream. The following is very highly indorsed: Keep the cream on ice until ready to whip. Take 2 earthen vessels about 6 inches in diameter. Into 1 bowl put 1 pint of rich sweet cream, 2 teaspoonfuls powdered sugar, and 5 drops of best vanilla extract. Add the white of 1 egg and beat with large egg beater or use whipping apparatus until 2 inches of froth has formed; skim off the froth into the other vessel and so proceed whipping and skimming until all the cream in the first vessel has been exhausted. The whipped cream will stand up all day and should be let stand in the vessel on ice.

Special machines have been constructed for whipping cream, but most dispensers prepare it with an ordinary egg beater. Genuine whipped cream is nothing other than pure cream into which air has been forced by the action of the different apparatus manufactured for the purpose; care must, however, be exercised in order that butter is not produced instead of whipped cream. To avoid this the temperature of the cream must be kept at a low degree and the whipping must not be too violent or prolonged; hence the following rules must be observed in order to produce the desired result: {248}

1. Secure pure cream and as fresh as possible.

2. Surround the bowl in which the cream is being whipped with cracked ice, and perform the operation in a cool place.

3. As rapidly as the whipped cream arises, skim it off and place it in another bowl, likewise surrounded with ice.

4. Do not whip the cream too long or too violently.

5. The downward motion of the beater should be more forcible than the upward, as the first has a tendency to force the air into the cream, while the second, on the contrary, tends to expel it.

6. A little powdered sugar should be added to the cream after it is whipped, in order to sweeten it.

7. Make whipped cream in small quantities and keep it on ice.

I.—Cummins’s Whipped Cream.—Place 12 ounces of rich cream on the ice for about 1 hour; then with a whipper beat to a consistency that will withstand its own weight.

II.—Eberle’s Whipped Cream.—Take a pint of fresh, sweet cream, which has been chilled by being placed on the ice, add to it a heaping tablespoonful of powdered sugar and 2 ounces of a solution of gelatin (a spoonful dissolved in 2 ounces of water), whip slowly for a minute or two until a heavy froth gathers on top. Skim off the dense froth, and put in container for counter use; continue this until you have frothed all that is possible.

III.—Foy’s Whipped Cream.—Use only pure cream; have it ice cold, and in a convenient dish for whipping with a wire whipper. A clear, easy, quick, and convenient way is to use a beater. Fill about one-half full of cream, and beat vigorously for 2 or 3 minutes; a little powdered sugar may be added before beating. The cream may be left in the beater, and placed on ice.

IV.—American Soda Fountain Company’s Whipped Cream.—Take 2 earthen bowls and 2 tin pans, each 6 or 8 inches greater in diameter than the bowls; place a bowl in each pan, surround it with broken ice, put the cream to be whipped in 1 bowl, and whip it with a whipped cream churn. The cream should be pure and rich, and neither sugar nor gelatin should be added to it. As the whipped cream rises and fills the bowl, remove the churn, and skim off the whipped cream into the other bowl.

The philosophy of the process is that the churn drives air into the cream, and blows an infinity of tiny bubbles, which forms the whipped cream; therefore, in churning, raise the dasher gently and slowly, and bring it down quickly and forcibly. When the second bowl is full of whipped cream, pour off the liquid cream, which has settled to the bottom, into the first bowl, and whip it again. Keep the whipped cream on ice.

The addition of an even teaspoonful of salt to 1 quart of sweet cream, before whipping, will make it whip up very readily and stiff, and stand up much longer and better.

«CRESOL EMULSION.»

One of the best starting points for the preparation is the “creosote” obtained from blast furnaces, which is rich in cresols and contains comparatively little phenols. The proportions used are: Creosote, 30 parts; soft soap, 10 parts; and solution of soda (10 per cent), 30 parts. Boil the ingredients together for an hour, then place aside to settle. The dark fluid is afterwards drained from any oily portion floating upon the top.

CREAM, COLD: See Cosmetics.

CREAMS FOR THE FACE AND SKIN: See Cosmetics.

CREOSOTE SOAP: See Soap.

CROCKERY: See Ceramics.

CROCKERY CEMENTS: See Adhesives.

«CROCUS.»

The substance known as “crocus,” which is so exceedingly useful as a polishing medium for steel, etc., may be very generally obtained in the cinders produced from coal containing iron. It will be easily recognized by its rusty color, and should be collected and reduced to a powder for future use. Steel burnishers may be brought to a high state of polish with this substance by rubbing them upon a buff made of soldiers’ belt or hard wood. After this operation, the burnisher should be rubbed on a second buff charged with jewelers’ rouge.

CRYSTAL CEMENTS FOR REUNITING BROKEN PIECES: See Adhesives, under Cements. {249}

CRYSTALLIZATION, ORNAMENTAL: See Gardens, Chemical.

CUCUMBER ESSENCE: See Essences and Extracts.

CUCUMBER JELLY, JUICE, AND MILK: See Cosmetics.

CURAÇOA CORDIAL: See Wines and Liquors.

CURTAINS, COLORING OF: See Laundry Preparations.

CURRY POWDER: See Condiments.

«CUSTARD POWDER:»

Corn flour 7 pounds Arrowroot 8 pounds Oil of almond 20 drops Oil of nutmegs 10 drops Tincture of saffron to color.

Mix the tincture with a little of the mixed flours; then add the essential oils and make into a paste; dry this until it can be reduced to a powder, and then mix all the ingredients by sifting several times through a fine hair sieve.

CUTLERY CEMENTS: See Adhesives.

CYLINDER OIL: See Lubricants.

CYMBAL METAL: See Alloys.

«Damaskeening»

Damaskeening, practiced from most ancient times, consists in ornamentally inlaying one metal with another, followed usually by polishing. Generally gold or silver is employed for inlaying. The article to be decorated by damaskeening is usually of iron (steel) or copper; in Oriental (especially Japanese) work, also frequently of bronze, which has been blackened, or, at least, darkened, so that the damaskeening is effectively set off from the ground. If the design consists of lines, the grooves are dug out with the graver in such a manner that they are wider at the bottom, so as to hold the metal forced in. Next, the gold or silver pieces suitably formed are laid on top and hammered in so as to fill up the opening. Finally the surface is gone over again, so that the surface of the inlay is perfectly even with the rest. If the inlays, however, are not in the form of lines, but are composed of larger pieces of certain outlines, they are sometimes allowed to project beyond the surface of the metal decorated. At times there are inlays again in the raised portions of another metal; thus, Japanese bronze articles often contain figures of raised gold inlaid with silver.

Owing to the high value which damaskeening imparts to articles artistically decorated, many attempts have been made to obtain similar effects in a cheaper manner. One is electro-etching, described further on. Another process for the wholesale manufacture of objects closely resembling damaskeened work is the following: By means of a steel punch, on which the decorations to be produced project in relief, the designs are stamped by means of a drop hammer or a stamping press into gold plated or silver plated sheet metal on the side which is to show the damaskeening, finally grinding off the surface, so that the sunken portions are again level. Naturally, the stamped portion, as long as the depth of the stamping is at least equal to the thickness of the precious metal on top, will appear inlaid.

It is believed that much of the early damaskeening was done by welding together iron and either a steel or an impure or alloyed iron, and treating the surface with a corroding acid that affected the steel or alloy without changing the iron.

The variety or damaskeening known as koftgari or kuft-work, practiced in India, was produced by rough-etching a metallic surface and laying on gold-leaf, which was imbedded so that it adhered only to the etched parts of the design.

«Damaskeening by Electrolysis.»—Damaskeening of metallic plates may be done by electrolysis. A copper plate is covered with an isolating layer of feeble thickness, such as wax, and the desired design is scratched in it by the use of a pointed tool. The plate is suspended in a bath of sulphate of copper, connecting it with the positive pole of a battery, while a second copper plate is connected with the negative pole. The current etches grooves wherever the wax has been removed. When enough has {250} been eaten away, remove the plate from the bath, cleanse it with a little hydrochloric acid to remove any traces of oxide of copper which might appear on the lines of the design; then wash it in plenty of water and place it in a bath of silver or nickel, connecting it now with the negative pole, the positive pole being represented by a leaf of platinum. After a certain time the hollows are completely filled with a deposit of silver or nickel, and it only remains to polish the plate, which has the appearance of a piece damaskeened by hand.

«Damaskeening on Enamel Dials.»—Dip the dial into molten yellow wax, trace on the dial the designs desired, penetrating down to the enamel. Dip the dial in a fluorhydric acid a sufficient length of time that it may eat to the desired depth. Next, wash in several waters, remove the wax by means of turpentine, i. e., leave the piece covered with wax immersed in essence of turpentine. By filling up the hollows thus obtained with enamel very pretty effects are produced.

DANDRUFF CURE: See Hair Preparations.

«DECALCOMANIA PROCESSES:»

See also Chromos, Copying Processes, and Transfer Processes.

The decalcomania process of transferring pictures requires that the print (usually in colors) be made on a specially prepared paper. Prints made on decalcomania paper may be transferred in the reverse to china ware, wood, celluloid, metal, or any hard smooth surface, and being varnished after transfer (or burnt in, in the case of pottery) acquire a fair degree of permanence. The original print is destroyed by the transfer.

«Applying Decalcomania Pictures on Ceramic Products under a Glaze.»—A biscuit-baked object is first coated with a mixture of alcohol, shellac, varnish, and liquid glue. Then the prepared picture print is transferred on to this adhesive layer in the customary manner. The glaze, however, does not adhere to this coating and would, therefore, not cover the picture when fused on. To attain this, the layer bearing the transfer picture, as well as the latter, are simultaneously coated with a dextrin solution of about 10 per cent. When this dextrin coating is dry, the picture is glazed. The mixing proportions of the two solutions employed, as well as of the adhesive and the dextrin solutions, vary somewhat according to the physical conditions of the porcelain, its porosity, etc. The following may serve for an example: Dissolve 5 parts of shellac or equivalent gum in 25 parts of spirit and emulsify this liquid with 20 parts of varnish and 8 parts of liquid glue. After drying, the glaze is put on and the ware thus prepared is placed in the grate fire.

The process described is especially adapted for film pictures, i. e., for such as bear the picture on a cohering layer, usually consisting of collodion. It cannot be employed outright for gum pictures, i. e., for such pictures as are composed of different pressed surfaces, consisting mainly of gum or similar material. If this process is to be adapted to these pictures as well, the ware, which has been given the biscuit baking, is first provided with a crude glaze coating, whereupon the details of the process are carried out as described above with the exception that there is another glaze coating between the adhesive coat and the biscuit-baked ware. In this case the article is also immediately placed in the grate fire. It is immaterial which of the two kinds of metachromatypes (transfer pictures) is used, in every case the baking in the muffle, etc., is dropped. The transfer pictures may also be produced in all colors for the grate fire.

«Decalcomania Paper.»—Smooth unsized paper, not too thick, is coated with the following solutions:

I.—Gelatin, 10 parts, dissolved in 300 parts warm water. This solution is applied with a sponge. The paper should be dried flat.

II.—Starch, 50 parts; gum tragacanth, dissolved in 600 parts of water. (The gum tragacanth is soaked in 300 parts of water; in the other 300 parts the starch is boiled to a paste; the two are then poured together and boiled.) The dried paper is brushed with this paste uniformly, a fairly thick coat being applied. The paper is then allowed to dry again.

III.—One part blood albumen is soaked in 3 parts water for 24 hours. A small quantity of sal ammoniac is added.

The paper, after having been coated with these three solutions and dried, is run through the printing press, the pictures, however, being printed reversed so that it may appear in its true position when transferred. Any colored inks may be used. {251}

IV.—A transfer paper, known as “décalque rapide,” invented by J. B. Duramy, consists of a paper of the kind generally used for making pottery transfers, but coated with a mixture of gum and arrowroot solutions in the proportion of 2 1⁠/⁠2 parts of the latter to 100 of the former. The coating is applied in the ordinary manner, but the paper is only semi-glazed. Furthermore, to decorate pottery ware by means of this new transfer paper, there is no need to immerse the ware in a bath in order to get the paper to draw off, as it will come away when moistened with a damp sponge, after having been in position for less than 5 minutes, whereas the ordinary papers require a much longer time.

«Picture Transferrer.»—A very weak solution of soft soap and pearlashes is used to transfer recent prints, such as illustrations from papers, magazines, etc., to unglazed paper, on the decalcomania principle. Such a solution is:

I.—Soft soap 1⁠/⁠2 ounce Pearlash 2 drachms Distilled water 16 fluidounces

The print is laid upon a flat surface, such as a drawing board, and moistened with the liquid. The paper on which the reproduction is required is laid over this, and then a sheet of thicker paper placed on the top, and the whole rubbed evenly and hard with a blunt instrument, such as the bowl of a spoon, until the desired depth of color in the transferrer is obtained. Another and more artistic process is to cover the print with a transparent sheet of material coated with wax, to trace out the pictures with a point and to take rubbings of the same after powdering with plumbago.

II.—Hard soap 1 drachm Glycerine 30 grains Alcohol 4 fluidrachms Water 1 fluidounce

Dampen the printed matter with the solution by sponging, and proceed as with I.

DEHORNERS: See Horn.

DELTA METAL: See Alloys.

DEMON BOWLS OF FIRE: See Pyrotechnics.

DENTAL CEMENTS: See Cements.

«Dentifrices»

«TOOTH POWDERS:»

A perfect tooth powder that will clean the teeth and mouth with thoroughness need contain but few ingredients and is easily made. For the base there is nothing better than precipitated chalk; it possesses all the detergent and polishing properties necessary for the thorough cleansing of the teeth, and it is too soft to do any injury to soft or to defective or thinly enameled teeth. This cannot be said of pumice, cuttlebone, charcoal, kieselguhr, and similar abradants that are used in tooth powders. Their use is reprehensible in a tooth powder. The use of pumice or other active abradant is well enough occasionally, by persons afflicted with a growth of tartar on the teeth, but even then it is best applied by a competent dentist. Abrading powders have much to answer for in hastening the day of the toothless race.

Next in value comes soap. Powdered white castile soap is usually an ingredient of tooth powders. There is nothing so effective for removing sordes or thickened mucus from the gums or mouth. But used alone or in too large proportions, the taste is unpleasant. Orris possesses no cleansing properties, but is used for its flavor and because it is most effective for masking the taste of the soap. Sugar or saccharine may be used for sweetening, and for flavoring almost anything can be used. Flavors should, in the main, be used singly, though mixed flavors lack the clean taste of simple flavors.

The most popular tooth powder sold is the white, saponaceous, wintergreen-flavored powder, and here is a formula for this type:

I.—Precipitated chalk 1 pound White castile soap 1 ounce Florentine orris 2 ounces Sugar (or saccharine, 2 grains) 1 ounce Oil of wintergreen 1⁠/⁠4 ounce

The first four ingredients should be in the finest possible powder and well dried. Triturate the oil of wintergreen with part of the chalk, and mix this with the balance of the chalk. Sift each ingredient separately through a sieve (No. 80 or finer), and mix well together, afterwards sifting the mixture 5 or 6 times. The finer the sieve and the more the mixture is sifted, the finer and lighter the powder will be. {252}

This powder will cost about 15 cents a pound.

Pink, rose-flavored powder of the Caswell and Hazard, Hudnut, or McMahan type, once so popular in New York. It was made in two styles, with and without soap.

II.—Precipitated chalk 1 pound Florentine orris 2 ounces Sugar 1 1⁠/⁠2 ounces White castile soap 1 ounce No. 40 carmine 15 grains Oil of rose 12 drops Oil of cloves 4 drops

Dissolve the carmine in an ounce of water of ammonia and triturate this with part of the chalk until the chalk is uniformly dyed. Then spread it in a thin layer on a sheet of paper and allow the ammonia to evaporate. When there is no ammoniacal odor left, mix this dyed chalk with the rest of the chalk and sift the whole several times until thoroughly mixed. Then proceed to make up the powder as in the previous formula, first sifting each ingredient separately and then together, being careful thoroughly to triturate the oils of rose and cloves with the orris after it is sifted and before it is added to the other powders. The oil of cloves is used to back up the oil of rose. It strengthens and accentuates the rose odor. Be careful not to get a drop too much, or it will predominate over the rose.

«Violet Tooth Powder.»—

Precipitated chalk 1 pound Florentine orris 4 ounces Castile soap 1 ounce Sugar 1 1⁠/⁠2 ounces Extract of violet 1⁠/⁠4 ounce Evergreen coloring, R. & F., quantity sufficient.

Proceed as in the second formula, dyeing the chalk with the evergreen coloring to the desired shade before mixing.

III.—Precipitated chalk 16 pounds Powdered orris 4 pounds Powdered cuttlefish bone 2 pounds Ultramarine 9 1⁠/⁠2 ounces Geranium lake 340 grains Jasmine 110 minims Oil of neroli 110 minims Oil of bitter almonds 35 minims Vanillin 50 grains Artificial musk (Lautier’s) 60 grains Saccharine 140 grains