I to Ignition battery
I. Symbol
I beam. (Engin.)A steel beam shape like the letter I. Used in structural work.
Ice. The solid form of water, produced by freezing..
Ice line. A curve expressing the relation between the melting point of ice and the applied pressure.
Ice point. The temperature at which a mixture of ice and air-saturated water at a pressure of one atmosphere is in equilibrium represented by ooe and 32°F.
Iconoscope. (Tel.) A tube used in the television camera to convert the light and shadow of a scene into electrical impulses.
Ideal crystal. The crystal structure considered as perfect and infinite.
Ideal gas. A gas defined for the purposes of thermodynamics as one that obeys Boyle's law and that, in addition, has an internal energy independent of the volume occupied, i.e., it obey Joule's law of internal energy. i
Identification light.. (Aero.) A group of lights, clear and coloured, carried on the rear part of an airplane for indentification at night.
Identity. (Math.) The state of being identical or absolutely the same.
Idle wheel or idler. (Mech.) A gear transmitting motion between two active gears, or a pulley used against a belt to take up slack.
Idling (Auto.) Refers to the slow running of the engine when the car is not is motion.
Idling jet (Auto.) The jet which controls the amount of gasoline n~ed for oPerating the engine at idling speed. Always taken off above the butterfly valve.
Igneous rock. ROCks formed under the action of heat, as basalt, quartz, granite, etc.
Ignition. (Elec.) The lighting of the charge in gas engines, effected generally by an electric spark.
Ignition battery. (Auto.) A storage battery or a combination of dry cells used to supply current for
thp. ignitiion system of a gasoline engine.
Ignition coil to Image
Ignition coil. (Elec.) Used on automobiles to produce a high-voltage cuncnt to jump the spark-plug gaps.
Ignition distributor. (Auto. Elec.) That part of the timer-distributor mechanism by which high-tension spark i!. distributed from the coil to the spark plugs.
Ignition spark. (Auto.) The high-tension spark or arc induced in the secondary winding of the ignition coil and passed. to the spark pfugs where it explodes the gas i!1 the engine cylinders.
Ignition switch. (Auto.) An electrical control which completes or breaks the circuit to ignition coil either by wiping contacts or pushpull, or toggle fingers.
Ignition temperature. The temperat:lre to which a combustible must be raised to cause a rapid chemical union with oxygen.
Ignition timer. (Auto. Elec.) A mechanical device. usually a cam by which time of sparking is set to provide effective combustion.
Ignition-timer-distributor. (Auto.) The complete assembly including rotor, breaker aim. and point, shaft, earn, and worm and gear driven from the camshaft of the engine. Attached to the top of the timer body is the distributor cap by means of which high-tension electricity is distributed to respective cylinders.
I-head engine. (Auto.) The type of motor commonly known as the "valve-in-head" or "overheadvalve motor."
Dluminating. (Print.) Embellishing a page or a book by decorative colour work; e.g., an elaborately coloured initial letter at the beginning of a chapter.
Illuminating gas. (Chern.) (I) Coal and carbureted water gases and their various mixtures. (2) The different classes of oil gas. (3) Acetylene, gasoline gas, and producer gas. The first is the most important for illuminating purposes. Producer gas is the. most important for fuel and power gas.
Dluminating oil. (Chern.) Certain oils obtaied by special distillation of crude petroleum.
Illumination. The state of being lighted up.
Ilustrate. To explain by means of figures, examples, comparisons. and the like; to make clear.
ilmeni!e; A dark-coloured ore of titanium found in southeastern U.S. Its principal use is for making a white pigment which forms a very durable paint.
Image. (Tel.) A picture or scene focused on the mosaic of the camera tube. or the picture reproduced
,
|