Tumble sheet to Turbo propeller engine
Thmble sheet. (Print.) A sheet that is tumbled when backed up i.e., fed
to the same side guide.s but oppo
. site gripper edge.
Thned. Adjusted to resonate, respond
or reject at a particular frequency.
Thnned circuit. A device in a radio receiver that can be adjusted to receive an electric current at a particular frequency.
Thner. (Radio) A coil-condenser circuit which can be adjusted to select a desired radio signal and reject others.
Thng oil. (Print.) Obtained from the seed of t!te tung tree, native to China and Japan. Used in the manufacture of varnishes, linoleum, and varnish driers. Also called Chinese wood oil.
Thngsten. ( Chem.) This metal is found in certain minerals, principally wolframite. In the metallic state, it is used with iron in making highspeed steel. In colloidal form, it is used in making electric-lamp filament, and in the form of sodium tungstate (N~ W04) as a fireproofing on wood and fabrics.
Thngsten carbide. An iron-gray powder produced by carbonizing in candescent tungsten in a methane or hydrocarbon vapour. It is used as an abrasive, or it is briquetted with cobalt or other binders into tools for high-speed cutting of metal. It is sold under such trade names as Widia metal, Carboloy, and Phoran. Its use for cutting tools makes possible an increase of from 3 to 5 times the former cutting speeds. While very expensive, many shops feel the additional expense justified. In many cases feed and depth of cut are limited. only by the ability of the machine to stand the strain.
Thngsten lamp. (Elee.) A type of incandescent lamp having a filament of fine tungsten wire.
Thngsten steel. (Metal.) An alloy steel much used for cutting tools.
Thning. (Elee.) The act of changing electrical characteristics of a radio receiving circuit so that desired incoming signals will have greatest clearness and strength.
Thnnel engineer. (Engin.) One who plans tJte specifications, design, and supervises the construction of tunnels under streams and through mountains, usually to improve transportation facilities.
Thrbidity. The degr~ of cloudiness of water as compared to perfectly clear water; due to silt, etc.
Thrbine. (Mach.) A type of steam engine in which all driving parts rotate.
Thrbo-propeller engine. (Aero.) An aircraft engine of the gas turbine type is which the turbine power
in used to drive both a compres- . sor and a propeller. Often called a "turboprop."
Turbulellce to TV story board
Turbulence. (Auto.) A swirling motion given incoming fuel charges by the shape of the cylinder head. This condition is desirable 'as a means of reducing knocking and pinging.
Turbulent flow. (Aero.) Any part of a fluid flow in which the velocity at a given point varies more or less rapidly in magnitude and direction
with time.
Turf or peat. (See Peat.) 1Orn-and-bank indicator. (Aero.)
An instrument combining in one case a turn indicator and a lateral inclinometer.
Turnhuckle. (Mech.) A form of coupling threaded to regulate tension in the rods which it connects.
Turned sort. (Prillt.) Type purposely placed face downwards so that the black foot prints. Indicated a typographical error.
Turn indicator. (Aero.)An instrument for indicating the existence of an angular velocity of turn of an aircraft about its normal a~is. In horizontal flight it indicates the presence of a yawing velocity.
10rning gouge. (Woodwkg.) A gouge used for roughing down woodwork in a lathe. Such gouges are made in widths from 1A to I Y2 in.
Turning machine. (Sheet-Met. Wk.) A machine used to prepare the edge of a cylindrical or flaring body, such as the edge of a pail or a funnel, to receive a wire.
Turn meter. (Aero.) An instrument that measures the rate of turn of an aircraft about any predetermined axis.
Turntable. Accurae circular platter with central bearing together with as sociated driving mechanism, for rotation of LP records.
Turmeric. (Chern.) A plant obtained from China, East India, and many tropical countries. Used as a yel
low dye in the manufacture of tur
meric paper which is used as a test for alkaline substances, which turn it from yellow to brown. Also used for medicine, colouring foodstuffs, dyeing textiles. etc.
1Orpentine. (Paillt.) The distilled sap of the long-leaf pine. Used in mixing paint to make it spread easier.
Turret. (Arch.) Small tower at one of the angles of a large building, rising from the ground or built on corbels. (Tel.) A multiple lens holder enabling a camera man to select from as many as four lenses on one camera.
Turret lathe. A lathe with revolving tool head, making possible several operations without removing the tools from the machine.
Tuscan. (Arch.) The plainest of the five orders of classic architecture.
Tuyere. (Fdry.) An opening through which the air passes from the "wind box" into the cupola.
TV story board. Sheets of paper with blank TV screens on them; used for roughing out the action of a programme.
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