Cape chisel to Carburetor.

Cape chisel which can be carried safely.
Cape chisel. (Metalwk.) A narrow blade chisel for cutting channels or keyways.
Capillary action. (phys.) The result­ant ofadhesion, cohesion, and'sur­face tension which produces the rise and fall of liquids in fine hairlike tubes.
Capital. (Arch.) The upper part of a pier, pilaster, or column. .
Capping. (Carp.) A topping or placing of a cap at the upper end of a piece of work.
Cap screw. A fmisbed machine bolt used either with or without a nut.
Cap stone. (Arch.) Stone used for the top or crowning of a structure.
Cap strip. (Af!ro.) A' continuous member on the outer edge of a wing rib.
Caption. (Print.) A headline or head­ing placed above a chapter or article.
Captive balloon. (Aero.) A balloon restrained from ftee flight by means of a cable attaching it to the earth.
Carat. (Jewelry) A unit of weight for jewels, about 3.2 grains.
Carbide tools. Metalworking tools consisting of carbide tips brazed on steel shanks to provide support.
Carbohydrate. (Chern.) A com­pound containing carbon, hydro­gen, and oxygen with the latter two in the ratio of 2 hydrogen to I oxygen; e.g., sugar C12H220.. The most important carbohydrates contain either 6 atoms or a multiple of 6 atoms of carbon.
Carbolice acid. (Chern.) Phenol. C6HpH. A poisonous substance de­rived from coal tar. Widely used as an antiseptic.
Carbon. (Chern.) A nonmetallic ele­ment (C) found in aU organic sub­stances. (Elec.) Carbon dust mixed with a binder and baked is used as an electrode in arc lamps. (Engin.) Carbon is the solid element of com­bustion.
Carbon arc. (Elec.) An arc occuring between carbon points as in an arc lamp.
Carbonate. (Chern.) Salts of carbonic acid, e.g., sodium carbonate. (Min­ing) Ore containing a large propor­tion of lead carbonate.)
Carbon black. (Paint.) An intense black made of the deposit trom natu­ral gas flames.
Carbon brush. (Elec.) See Brush.
Carbon contact. (Elec.) See Contacts.
Carbon deposit. (Auto.) An accumulation of carbon in the combustion chamber and sometimes around valves and piston rings. Poor quality of gasoline and lubricating oil hastens such actions.
Carbon dioxide. (Chern.) COr Product of complete combustion of carbon fuels. Transported in liquid form in steel cylinders. Used in gaseous form as a fire extinguisher and in solid form as dry ice.
Carbon disulphide. (Chem.) CS2. When pure is a colourless volatile liquid with an unpleasant garlicky odour. Used as a solvent for sulphur, phos­phorus, iodine, bromide, camphor,

Carbon filament to Carbutretor float gums, resins, waxes, fats, etc. It is also used as an insecticide. Same as carbon bi-sulphide.
Carbon filament. (Elec.) An incan-. descent lamp filament composed of a thread or fiber which has been reduced to carbon by a carboniz­ing process.
Carbon holder. (Elec.) A device which holds and feeds the carbons in an arc lamp.
Carbonization. The preparation of low-carbon steel for heat treatment by packing in a container with car­bonizing material such as charcoal. or one of the trade articles made for the purpose, then heating to about 2000 deg. F. for several hours, then allowing to cool very slowly. .
Carbonizing. (Elec. and Engin.) The reduction of a substance to carbon by subjecting it to intense heat in a closed vessel.
Carbon monoxide. (Chern.) CO. An odonrless, colourless, tasteless, deadlypoisonours gas formed by incomplete combustion of carbon fuels.
Carbon paper. A thin paper coated with a combination of wax and car­bon, used for duplicating.
Carbon piles. (Elec.) Plates of carbon which act as resistance units in a high-discharge electrical test set.
'Carbon remover. (Auto.) A scraper or tool for hand or machine use, or a liquid which usually is added to the gasoline for the removal of car­bon deposits. .
Carbon rheostat. (Elec.) A rheostat using carbon plates or grains which act as resistance.

Carbon steel. A broad term applied to tool steels other than high-speed steels or alloy steels. If, under 50 point carbon, it does not harden per­ceptibly, it is caned low carbon, mild, or machine steel. Steel of 75 point carbon will harden, but the best car­bon steel contains about IOO-point carbon. .
Carbon tetrachloride. (Chern.) A non­inflammable liquid used as a solvent for oil and grease for cleansing pur­poses. It is also the active agent used in many types of fire extinguishers.
Carborundum. A trade name cover­ing silicon carbide and other abra­sive products. This term is not prop­erly used as a generic name for sili­con carbide.
Carburetor. (Auto. Mech.) A device for converting liquid fuel into vapour and mixing it with air in such pro­portions as to form the most efficient combustible mixture.