Side stick to Silumin

Side stick to Signature press
'of the lower end of the axis.
Side stick. (Prillt.) A long wedge­ shaped piece of wood used in forms and galleys and locked in ,. place with wooden quoins.
Side stitch. (Print.) Wire staples affixed by machine along the bind­ing edge.
Side-thrust. Unwanted lateral force on tone arm.
Siding. (Arch.) Lumber used for finshing the exterior walls of a building.
Sieve. (Ceram and Masonry) A screen for sizing materials, as removing stones and large particles from sand.
Sight. The power or faculty of see­ing; vision; any of the various mechanical or optical viewing devices; as on a firearm, for aid­ing the eye in aiming.
Sight-feed lubricator. (Mech.) A lu­bricator in which the flowing or nontlowing of the oil is always apparent at sight.
Sighting pendant. (Aero.) A steering mark on an airship. A vertical wire on center line forward of control car, used as a sight. Sigma drive. System developed by Kenwood wherein 3 wires are taken to each loud-speaker. The third wire is a'control wire so that the speaker wires' characteristics can be included in the negative feedback loop of the amplifier.
Signal. (Tel.) Two signals are involved in transmitting a television pro­gram, the picture or video signal and the sound or audio signal. Each signal, therefore, contains the elec­ trical impulses which represent the sound or picture elements being transmitted. An impulse, sound wave etc; transmitted or received.
Signal flare. (Aero.) A pyrotechnic signaling device of distinctive colour and characteristics.
Signal generator. Piece of test equip­ment which uses an internal os­cillator to generate signals at cali­brated voltage levels over a range of frequencies. Signal path. The movement of the signal from point of origin to point of display; the course a signal takes through a component or series of components.
Signal processing equipment. Any equipment or circuit that is used to intentionally change the char­acteristics of a signal (other than overall level). Signal processors consist of such devices as equalisers, limiters, phasers, flangers, delay lines etc.
Signal splitter. Device used to split a signal signal into two parts­usually results in a 6 dB loss on each leg of the split. Mostly in­corporates a balun.
Signal-to-noise ratio. Ratio of de­sired signal voltage to unwanted noise and hum voltage. Expressed in decibels (dB).
Signature. (Print. and Bookbndg.) The small numbers printed on each fold of pages of a book, to show in what order the different sections should be assembled. Also one ofthe sections of a book. Signature press. (Print. and Book­Silent chaim to Silumin blldg.) A device used by binders for pressing signatures together.
Silent chain. (Engin.) A transmission chain, each link of which is made up of a number of thin plates in­terlocked with the plates of the adjoining links and connected with pins or rivets. These plates are so designed that they conform to the shape of the teeth of the sprocket or wheel over which they run. This type of chain is much used for timing-gear drive on automobiles and in many other places where only short lengths are required.
Silica. (Pot.) (Si02) Silica and infu­sorial earth are usually either ground quartz or the native infusioral earth washed and pow­dered. China clay and gaolin are silicates of )llumina.
Silicon. (Mill.) A nonmetallic element derived by heating quartz and car­bon in an electric furnace. It is used for hardening and deoxidiz­ ing in the manufacturer of steel. Silicon carbide. A product of the re­sistance-type, electric furnace, made by fusing sand and coke with saw-dust, using salt as a flux. It is used as a refractory material and as an abrasive. It is sold under a variety of trade names such as Carborundum, Crystolon, Carbofrax, Carbora, Carborite and Crystolite. (Chern.) SiC. In granu­lar form used in grinding or cut­ting materials of low tensile strength such as cast iron, alu­minium, copper, bronze, and non­metallic materials.Silicon chip. The general name for an integrated circuit.
Silicon copper. (Metal.) A rich cop­per alloy "added to molten copper in order to secure clean, solid cast­ings free from blow holes, swell­ings, etc. When used in the proper amount (about I Y2 to 21b. per hun­dred) not a trace of silicon remains in the metal.
SiIi-cone. (Plast.) A plastic family based on silica with a wide range " of physical forms, from simple flu­ids and greases to flexilbe rubbers and hard. durable resins. Since they offer excellent weather, heat, and wear properties, they are used in gaskets, circuit breaker~, and aircraft parts where high tempera­ture operation is required. They are also used in lubricants, and adhesives. (SEE PLASTICS.)
Silicon steel. (Metal.) Steel contain­ing from I to 2 per cent of silicon is used in the manufaclure of springs. Steel containing 3 to 5 per cent possesses magnetic quali­ties which make it valuable for electromagnets.
Sill. (Arch.) A foundation of timber" or stone atthe bottom of a door or window.
Sill high. (Masonry) The height from floor to sill.
Silt. A finely divided earthy material deposited from running water.
Silumin. (Metal.) A german alloy of aluminium silicon which is much used for intricate castings on ac­count of its high ductility and slight shrinkage.