See also:

• PISTON (through Fr. from Ital. pistone or pestone, a great pestle, from Late Lat. pistare, to pound, a frequentative form of classical Lat. pinsere)

PISTON (through Fr. from Ital. pistone or pestone, a See also:

• GREAT

great pestle, from See also:

• LATE

Late See also:

• LAT

Lat. pistare, to See also:

• POUND
• POUND (2)—(a)

pound, a frequentative See also:

• FORM (Lat. forma)

form of classical Lat. pinsere)  , in the See also:

• STEAM
• STEAM (0. Eng. steam, vapour, smoke, cf. Du. steam; the origin is unknown)

steam See also:

• ENGINE
• ENGINE (Lat. ingenium)

engine, a disk or See also:

• PARTITION

partition placed inside the See also:

• CYLINDER (Gr. KvAwSpos, from KvXivaety, to roll)

cylinder, from end to end of which it moves alternately under the pressure of the steam . By means of the " See also:

• PISTON (through Fr. from Ital. pistone or pestone, a great pestle, from Late Lat. pistare, to pound, a frequentative form of classical Lat. pinsere)

piston-See also:

• ROD (O.E. rodd, probably related to Norw. rudda, stick, rodda, stake)
• ROD, EDOUARD (1857-1910)

rod " attached to it this forward and backward See also:

• MOTION (Lat. motio, from movere, to move)
• MOTION, LAWS OF

motion is communicated to the machinery which the engine is employed to drive, and is in most cases converted into rotary motion by a " connecting-rod," one end of which is jointed to the " See also:

• CROSS

cross-See also:

• HEAD (in 0. Eng. heafad; the word is common to Teutonic languages; cf. Dutch hoofd, Ger. Haupt, generally taken to be in origin connected with Lat. caput, Gr. KerbOvi7)
• HEAD, SIR EDMUND WALKER, BART
• HEAD, SIR FRANCIS BOND, BART

head " carried at the end of the piston-rod, while the other turns the See also:

• CRANK

crank on the crank-See also:

• SHAFT
• SHAFT (O. Eng., sceaft, from scafan, to shave; the word is common to Teutonic languages)

shaft . The piston in See also:

• GAS

gas, oil and See also:

• AIR (from an Indo-European root meaning " breathe," " blow ")
• AIR, or ASBEN

air engines has a, similar See also:

• FUNCTION

function, but in a See also:

• PUMP

pump, instead of imparting motion, it has motion imparted to it by some See also:

• PRIME, PRIMER AND PRIMING

prime-mover . In every See also:

• CASE
• CASE, JOHN (d. 1600)

case the piston must See also:

• FIT

fit the cylinder so accurately that as little as possible of the working fluid, whether it be steam, gas or See also:

• WATER

water, can See also:

• ESCAPE (in mid. Eng. eschape or escape, from the O. Fr. eschapper, modern echapper, and escaper, low Lat. escapium, from ex, out of, and cappa, cape, cloak; cf. for the sense development the Gr. iichueoOat, literally to put off one's clothes, hence to sli

escape past it, packing of various forms being commonly placed See also:

• ROUND (O. Fr. rond, Lat. rotundus, the Fr. is the source also of Du. rond; Ger., Swed., Dan. and Nor. rond)

round its periphery in See also:

• ORDER
• ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
• ORDER, HOLY

order to secure this fit . In See also:

• MUSIC

music, the valves which in certain See also:

• WIND
• WIND (a common Teut. word, cognate with Skt. vats, Lat. ventus, cf. " weather," to be of course distinguished from to " wind," to coil or twist, O.Eng. windan, cf. "wander," "wend," &c.)

wind See also:

• INSTRUMENTS

instruments, such as the See also:

• CORNET,

cornet, enable the player to increase the length of the air-See also:

• COLUMN (Lat. columna)

column and thus See also:

• LOWER

lower the See also:

• NOTE
• NOTE (Lat. nota, mark, sign, from noscere, to know)

note produced, are known as pistons .