Part 132

«To Clean Milk Glass.»—To remove oil spots from milk glass panes and lamp globes, knead burnt magnesia with benzine to a plastic mass, which must be kept in a tight-closing bottle. A little of this substance rubbed on the spot with a linen rag will make it disappear.

«To Remove Oil-Paint Spots from Glass.»—If the window panes have been bespattered with oil paint in painting walls, the spots are, of course, easily removed while wet. When they have become dry the operation is more difficult and alcohol and turpentine in equal parts, or spirit of sal ammoniac should be used to soften the paint. After that go over it with chalk. Polishing with salt will also remove paint spots. The salt grates somewhat, but it is not hard enough to cause scratches in the glass; a subsequent polishing with chalk is also advisable, as the drying of the salt might injure the glass. For scratching off soft paint spots sheet zinc must be used, as it cannot damage the glass on account of its softness. In the case of silicate paints (the so-called weather-proof coatings) the panes must be especially protected, because these paints destroy the polish of the glass. Rubbing the spots with brown soap is also a good way of removing the spots, but care must be taken in rinsing off that the window frames are not acted upon.

«Removing Silver Stains.»—The following solution will remove silver stains from the hands, and also from woolen, linen, or cotton goods:

Mercuric chloride 1 part Ammonia muriate 1 part Water 8 parts

The compound is poisonous.

«MISCELLANEOUS CLEANING METHODS AND PROCESSES:»

«Universal Cleaner.»—

Green soap 20 to 25 parts Boiling water 750 parts Liquid ammonia, caustic 30 to 40 parts Acetic ether 20 to 30 parts

Mix.

«To Clean Playing Cards.»—Slightly soiled playing cards may be made clean by rubbing them with a soft rag dipped in a solution of camphor. Very little of the latter is necessary.

«To Remove Vegetable Growth from Buildings.»—To remove moss and lichen from stone and masonry, apply water in which 1 per cent of carbolic acid has been dissolved. After a few hours the plants can be washed off with water.

«Solid Cleansing Compound.»—The basis of most of the solid grease eradicators is benzine and the simplest form is a benzine jelly made by shaking 3 ounces of tincture of quillaia (soap bark) with enough benzine to make 16 fluidounces. Benzine may also be solidified by the use of a soap with addition of an excess of alkali. Formulas in which soaps are used in this way follow:

I.—Cocoanut-oil soap. 2 av. ounces Ammonia water 3 fluidounces Solution of potassium 1 1⁠/⁠2 fluidounces Water enough to make 12 fluidounces

Dissolve the soap with the aid of heat in 4 fluidounces of water, add the ammonia and potassa and the remainder of the water.

If the benzine is added in small portions, and thoroughly agitated, 2 1⁠/⁠2 fluidounces of the above will be found sufficient to solidify 32 fluidounces of benzine. {210}

II.—Castile soap, white 3 1⁠/⁠2 av. ounces Water, boiling 3 1⁠/⁠2 fluidounces Water of ammonia 5 fluidrachms Benzine enough to make 16 fluidounces

Dissolve the soap in the water, and when cold, add the other ingredients.

«To Clean Oily Bottles.»—Use 2 heaped tablespoonfuls (for every quart of capacity) of fine sawdust or wheat bran, and shake well to cover the interior surface thoroughly; let stand a few minutes and then add about a gill of cold water. If the bottle be then rotated in a horizontal position, it will usually be found clean after a single treatment. In the case of drying oils, especially when old, the bottles should be moistened inside with a little ether, and left standing a few hours before the introduction of sawdust. This method is claimed to be more rapid and convenient than the customary one of using strips of paper, soap solution, etc.

«Cork Cleaner.»—Wash in 10 per cent solution of hydrochloric acid, then immerse in a solution of sodium hyposulphite and hydrochloric acid. Finally the corks are washed with a solution of soda and pure water. Corks containing oil or fat cannot be cleaned by this method.

«To Clean Sponges.»—Rinse well first in very weak, warm, caustic-soda lye, then with clean water, and finally leave the sponges in a solution of bromine in water until clean. They will whiten sooner if exposed to the sun in the bromine water. Then repeat the rinsings in weak lye and clean water, using the latter till all smell of bromine has disappeared. Dry quickly and in the sun if possible.

CLEARING BATHS: See Photography.

CLICHÉ METALS: See Alloys.

CLOCK-DIAL LETTERING: See Watchmakers’ Formulas.

CLOCK-HAND COLORING: See Metals.

CLOCK OIL: See Oil.

CLOCK REPAIRING: See Watchmaking.

CLOCKMAKERS’ CLEANING PROCESSES: See Cleaning Preparations and Methods.

CLOTH TO IRON, GLUEING: See Adhesives.