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Squaring shears to Standarized
Squaring shears to Staging
screw, the section of whose thread is rectangular in form.
Squaring shears. (Sheet-Met. Wk.) A foot or power-operated machine for cutting metal from the original sheets or for straight cutting in trimming work to exact size.
Squeeze. To press forcibly together, compress.
Squeeze period. (Weld.) The time interval in a resistance-welding process between the application of pressure and the application of welding current.
Squeezer. (Fdry.) A type of molding machine.
Squelch. To strike or press with crushing force.
Squinch. (Arch.) A small arch or corbeled set-off, running diagonally, and cutting off a <:.orner of the interior of a room or tower, to bring it from the square to the octagon, to carry the spire.
Squirrel-cagte rotor. (Elec.) The revolving part of the ordinary induction motoF.
Stability. The state or quality of being firm or stable. (Aero.) That property of a body which causes it, when disturbed from a condition of equilibrium or steady motion, to develop forces or moments which tend to restore the body to its original condition.
Stabilizer. (Aero.) Also called tail plane. An airfoil usually located at the rear of an aircraft for the purpose of lessening the pitching motion. Mechanical stabiliers include gyroscopic, pendulum,inertia types, etc. (Plast.) In plastic manufacture, an additive to a resin compound which keeps the product stable, in respect of its essential properties, throughout its service life.
Stable oscillation. (Aero.) An oscillation whose amplitude does not increase.
Stack. .(Arch.) A large chimney usually -of brick, stone, or sheet metal for carrying off smoke or fumes in a factory. (Engin.) A chimney usually of steel and generally short.
Staff bead. (Bldg.) The molding strip used between the masonry 'and window frame to shut out the weather.
Stage. Part of electronic circuit that can be regarded as a function'al entity. Valve or transistor and its associated components, often providing amplification.
Stagger. (Shopwk.) (I)" To arrange parts in an uneven line. (2) To place in rows, a rivets, one row alternating with the spaces of another.
Stagger wire. (Aero.) A wire connecting the upper and lower surfaces of an airplane and lying in a plane substantially parallel to the plane
of symmetry. Also called "inci-. dence wire."
Staging. (Bldg.) A temporary structure of boards and posts. (Paint.) A wood platform ~ung in ropes to be used as a scaffold for such work as painting or scraping a building wall.
stain to Standarized cell
Stain. (Shopwk.) A wood finish which usually does not obscure the grain as would be the case with paint. Tbere are oil stains (which are classed as pigment stains), also acid, penetrating, and water stains which contain dyestuffs in solution.
Stainless teel. (Metal.) An alloy steel containing a high percentage of chromium, with the addition sometimes of nickel and copper. This
steel is hard and tough and retains. a polish.
Stair. (Bldg.) A stair is a single step in a flight of stairs.
Staircase. (Arch. alld Bldg.) A flight of stairs with landings, newel posts, handrails. and balf:1strade.
Stairs. (Bldg.) Means the complete set of steps between two floors of a building and may consist of one or more flights. Simplest type is the "straight stJir or straight run stair so called because it leads from one floor to another without a turn or landing. "Close string" stairs are built with a wall on each side. "Open string" stairs have one side open to a room, so that a handrail is necessary. "Dog-legged" stairs or "platform" stairs have landings near the bottom or top, usually introduced to change direction.
Stair treads. (Bldg.) The horizontal boards of a stair.
Stakes. (Sheet-Met. Wk.) Small anvils of various shapes and sizes, used on the bench by sheet-metal workers for bending and forming.
Staking out. (Bldg.) The driving of stakes into the earth to indicate the foundation location of the structure to be built. The stakes are often connected by a cord in order to secure a clean edge in the excavation.
Stall. (Aero.) The condition of an airplane when the speed necessary for support or control has been lost. (Arch.) A small booth or compartment, as in a market.
Stalling speed. (Aero.) The speed of an airplane in steady flight at its maximum coefficient of lift.
Stamping press. (Print.) An embossing press.
Stanchion. A suppot or post of iron or wood.
Standard. ( I) Accurate; authoritative. (2) Any established measure; a type, model, or example for comparison.
Standard atmosphere. (Aero.) An arbitrary atmosphere used in comparing the performance of aircraft. The standard atmosphere in use in the United States at present represents very nearly the average conditions found at latitude 40 deg.
Standard international atmosphere. (Aero.) The atmosphere used as an international standard presumes for mean sea level and a temperature of 15 degrees C., a pressure of I, 013.2 millibars, lapse rate of 6.5 degrees C. per kilometer from. sea level to II kilometers, and thereafter a constant temperature of -56.5 degrees C.
Standardized cell. (Elec.) For accu |