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al rafters, hanging the tiebeam, etc. -- Side rod. (a) One of the rods which connect the piston-rod crosshead with the side levers, in a side-lever engine. (b) See Parallel rod, under Parallel. -- Side screw (Firearms), one of the screws by which the lock is secured to the side of a firearm stock. -- Side table, a t…

particular kind of sliding valve, often used in steam engines for admitting steam to the piston and releasing it, alternately, having a cuplike cavity in its face, through which the exhaust steam passes. It is situated in the steam chest, and moved by the valve gear. It is sometimes called a D valve, -- a name which i…

ere from the cylinder or condenser of a steam engine, to allow the escape of air when the piston makes a stroke; -- so called from the noise made by its action.

the hub and spokes to which the rim of a fly wheel or large gear is bolted; the body of a piston head; a frame for strengthening a core or mold for a casting, etc. Spider ant. (Zoöl.) Same as Solitary ant, under Solitary. -- Spider crab (Zoöl.), any one of numerous species of maioid crabs having a more or less triangu…

The movement, in either direction, of the piston plunger, piston rod, crosshead, etc., as of a steam engine or a pump, in which these parts have a reciprocating motion; as, the forward stroke of a piston; also, the entire distance passed through, as by a piston, in such a movement; as, the piston is at half stroke.…

m of liquid, or for purposes of aspiration. It consists of a small cylindrical barrel and piston, or a bulb of soft elastic material, with or without valves, and with a nozzle which is sometimes at the end of a flexible tube; -- used for injecting animal bodies, cleansing wounds, etc. Garden syringe. See Garden.…

A steam engine having two or more steam cylinders in line, with a common piston rod.

bustion engine in which the mixture enters the crank case through a port uncovered by the piston near the end of its stroke.

ccentric; as, the throw of the crank of a steam engine is equal to half the stroke of the piston.

truments whose scale, both diatonic and chromatic, is complete without the aid of keys or pistons, and which can slide from note to note as smoothly as the human voice or a violin. Softly blown, it has a rich and mellow sound, which becomes harsh and blatant when the tones are forced; used with discretion, its effect i…

the first natural harmonics; but there are modern trumpets capable, by means of valves or pistons, of producing every tone within their compass, although at the expense of the true ringing quality of tone. The trumpet's loud clangor Excites us to arms. Dryden.

A large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact.

An engine having a trunk piston, as most internal combustion engines.