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A filler added to acetylene cylinders, capable of absorbing 25 times its own volume of acetylene.

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A torch that mixes acetylene and oxygen to produce a hot flame for the welding or cutting of metal. Also known as atomized kerosine for combustion.


The flame cutting of ferrous metals in which the preheating of the metal is accomplished with a flame produced by an oxyacetylene torch. Also known as acetylene cutting.


An automatic acetylene cutter controlled by a mechanical pointer that traces a pattern; capable of cutting several duplicates simultaneously.


A type of torch inwhich acetylene enters a mixing chamber, whereit meets a jet of high-pressure oxygen; theamount of acetylene drawn into the flame is con-trolled by the velocity of this oxygen jet. Also known as injector torch.


A type of torch in which both acetylene and oxygen are delivered to the mixing chamber under pressure.


A colourless gas (C2H2) prepared by the action of water with calcium carbide. Acetylene is used in gas welding and cutting.


The volume which a piston in a cylinder displaces in a single stroke, equal to the distance the piston travels times the internal cross section of the cylinder.


Abbreviated pt. 1. A unit of volume, used in the United States for measurement of liquid substances, equal to 1/8 U.S. gallon, or 231/8 cubic inches, or 4.73176473 10 4 cubic meter. Also known as liquid pint (liq pt). 2. A unit of volume used in the United States for measurement of solid substances, equal to 1/64 U.S. bushel, or 107,521/3200 cubic inches, or approximately 5.50610 10 4 cubic meter. Also known as dry pint (dry pt). 3. A unit of volume, used in the United Kingdom for measurement of liquid and solid substances, although usually the former, equal to 1/8 imperial gallon, or 5.6826125 10 4 cubic meter. Also known as imperial pint.


1. An instrument for measuring fluid pressure, such as a gage attached to a pipe containing a gas or liquid. 2. An instrument for measuring the compressibility of materials, such as a vessel that determines the change in volume of a substance in response to hydrostatic pressure.


The number of components per unit volume in a working system or subsystem.

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