P to Paint for concrete
P. Symbol for electric dipole moment,impulse, momentum; pressure.
Package. A set of computer. programmes that is directed at some application in general, such as computer graphics, and that can be tailored to the neeed of particular instance of that application.
Pack harden. (Metal) (I) To carbonize or caseharden. (2) The process of giving a hard outer surface to mild steel.
Pack hardening. (Metal.) Consists in treating steel with some carbonaceous material and quenching it in oil. The terms "pack hardening" and "caseharding" are often used inter changeably.
Packing. (Ellgin.) (I) The material which is enc1used in a stuffing box for the purpose of preventing leakage around a piston rod. (2) The act or process of inserting packing material (3) Blocking up. (Print.) The heavy sheet used under the drawsheet of a press to build up the impression.
Packing density. The number of devices or integrated circuits per unit of a silicon chip; the quantity of information stored in a specified of a storage system associated with a computer.
Pad. (Paper) A number of sheets of paper held together in tablet form by gumming one or more edges. Padlock. A detachable lock, used in connection with a hasp and staple.
Pad lubrication. Lubricaiton accomplished by contact with an oilsaturated pad as distinguished from any of the many other methods.
Pad saw. (Carp.) A type of handsaw with narrow tapering blade. The pad or socket into which the blade fits when not in use also serves as a handle.
Page. One side of a leaf of a book. Pagoda. (turn.) A tower-shaped roof or top; a feature of cabinets, cupboards, etc., designed by Chippendale and others, showing Chinese influence.
Paint. (Chern.) (I) Pigment or colour, either dry or mixed with oil or water. (2) The act of appiying the same.
Paint base. (Chern.) The body matter of paint, as white lead or zinc.
Paint drier. Most paint driers are composed of lead and manganese. A limited amount of drier serves a good purpose, but too much is harmful. Paint for concrete. Paints made of zinc oxide or barium sulphate
Painting to pantile mixed with tung oil are much used for this class of work.
Painting. Decorating with paint.
Painttliinner. Turpentine or petroleum spirits may be used to thin heavy-bodied paints in order to make application easier. Petroleum spirits are much used on account of lower cost.
Paktong. A metal composition of nickel, zinc, and copper, resembling German silver, and made in China, used for candlesticks,. fire irons, and other metalwork.
Pallet. (Horol.) The surface or part upon which the escape wheel acts in order to give impulse to the pendulum or balance. (Mech.) A click or pawl which drives a ratchet wheel.
Palette knife. (Print.) A very thinbladed, flexible, steel knife used for mixing ink or coloW"S.
Palladinn. (Chern.) A rare, white, ductile, malleable metal occurring with platinum.
Palm fiber. (Uphol.) Made from the outer husks of coconuts. It makes a firm, springly filler for upholstery and is a cheap substitute for hair.
Palnnt. (Aero.) A single~thread nut stamped out of spring ~teel or other materials. The locking part is essentially a cone with a hole in the center, whose inner edges are formed to the pitch of the screw thread. This inner edge is slotted to form spring jaws which close in on the root of the thread and grip the screw thread when the pal nut is tightened.
Pamphlet. (Print.) A booklet without covers, or bound in paper.
Pan. (Tel.) (1) A camera movement which shows a panorama of a set. (2) A reflecting unit using one or more lights, usually fluorescent tubing.
Pancake. (Aero.) To level off an airplane at a greater altitude than normal in a landing, thus causing it to stall and to descend on a steely inclined path, with the wings at a very large angle of attack and without appreciable bank. .
Panchromatic. (Photog.) Emulsions sensitive to all colours of light.
Panel. (Aero.) A portion of an airplane wing constructed separatdy from the rest of the wing to which it is attached. (Bldg. and Cabwk.) A raised or sunken portion surrounded as by a frame.
Panel board; (Elec.)A control board carrying switches and fuse.
Panel raising. (Cabwk.) Cutting the tapered. border around the edges of a panel so they fit into the panel frame. The central part is left thicker than the edges (or raised).
Panel saw. (Carp.) A handsaw with fine teeth, for cutting thin wood.
Panel strip. (Bldg.) A strip of molded wood or metal to cover a joint between two sheathing boards to form a panel.
Pantile. (Arch.) A roofing tile whose cross-section is an ogee curve; a curved roofing tile laid alternately
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