| slovo | definícia |
propeller
(encz) | propeller,lodní šroub n: Zdeněk Brož |
propeller
(encz) | propeller,vrtule n: Zdeněk Brož |
Propeller
(gcide) | Propeller \Pro*pel"ler\, n.
[1913 Webster]
1. One who, or that which, propels.
[1913 Webster]
2. A contrivance for propelling a steam vessel, usually
consisting of a screw placed in the stern under water, and
made to revolve by an engine; a propeller wheel.
[1913 Webster]
3. A steamboat thus propelled; a screw steamer.
[1913 Webster]
Propeller wheel,the screw, usually having two or more
blades, used in propelling a vessel.
[1913 Webster] |
propeller
(wn) | propeller
n 1: a mechanical device that rotates to push against air or
water [syn: propeller, propellor] |
| | podobné slovo | definícia |
double-propeller plane
(encz) | double-propeller plane, n: |
propeller
(encz) | propeller,lodní šroub n: Zdeněk Brožpropeller,vrtule n: Zdeněk Brož |
propeller plane
(encz) | propeller plane, n: |
screw propeller
(encz) | screw propeller, n: |
single-propeller plane
(encz) | single-propeller plane, n: |
turbo-propeller plane
(encz) | turbo-propeller plane, n: |
twin-propeller-plane
(encz) | twin-propeller-plane, n: |
variable-pitch propeller
(encz) | variable-pitch propeller, n: |
airplane propeller
(gcide) | airplane propeller \airplane propeller\ n.
a propeller designed for propelling airplanes.
Syn: airscrew, propeller, prop.
[WordNet 1.5 +PJC] |
Fish-tail propeller
(gcide) | fishtail \fishtail\ v. i.
to have the rear end skid from side to side, out of control:
-- said of automobiles or other vehicles.
[PJC]
Fish-tail burner, a gas burner that gives a spreading flame
shaped somewhat like the tail of a fish.
Fish-tail propeller (Steamship), a propeller with a single
blade that oscillates like the tail of a fish when
swimming.
[1913 Webster] |
Hydraulic propeller
(gcide) | Hydraulic \Hy*drau"lic\, a. [F. hydraulique, L. hydraulicus, fr.
Gr. ?, ?, a water organ; "y`dwr water + ? flute, pipe. See
Hydra.]
Of or pertaining to hydraulics, or to fluids in motion;
conveying, or acting by, water; as, an hydraulic clock,
crane, or dock.
[1913 Webster]
Hydraulic accumulator, an accumulator for hydraulic
machinery of any kind. See Accumulator, 2.
Hydraulic brake, a cataract. See Cataract, 3.
Hydraulic cement, a cement or mortar made of hydraulic
lime, which will harden under water.
Hydraulic elevator, a lift operated by the weight or
pressure of water.
Hydraulic jack. See under Jack.
Hydraulic lime, quicklime obtained from hydraulic
limestone, and used for cementing under water, etc.
Hydraulic limestone, a limestone which contains some clay,
and which yields a quicklime that will set, or form a
firm, strong mass, under water.
Hydraulic main (Gas Works), a horizontal pipe containing
water at the bottom into which the ends of the pipes from
the retorts dip, for passing the gas through water in
order to remove ammonia.
Hydraulic mining, a system of mining in which the force of
a jet of water is used to wash down a bank of gold-bearing
gravel or earth. [Pacific Coast]
Hydraulic press, a hydrostatic press. See under
Hydrostatic.
Hydraulic propeller, a device for propelling ships by means
of a stream of water ejected under water rearward from the
ship.
Hydraulic ram, a machine for raising water by means of the
energy of the moving water of which a portion is to be
raised. When the rush of water through the main pipe d
shuts the valve at a, the momentum of the current thus
suddenly checked forces part of it into the air chamber b,
and up the pipe c, its return being prevented by a valve
at the entrance to the air chamber, while the dropping of
the valve a by its own weight allows another rush through
the main pipe, and so on alternately.
Hydraulic valve. (Mach.)
(a) A valve for regulating the distribution of water in the
cylinders of hydraulic elevators, cranes, etc.
(b) (Gas Works) An inverted cup with a partition dipping into
water, for opening or closing communication between two
gas mains, the open ends of which protrude about the
water.
[1913 Webster] |
Jet propeller
(gcide) | Jet \Jet\, n. [F. jet, OF. get, giet, L. jactus a throwing, a
throw, fr. jacere to throw. Cf. Abject, Ejaculate,
Gist, Jess, Jut.]
[1913 Webster]
1. A shooting forth; a spouting; a spurt; a sudden rush or
gush, as of water from a pipe, or of flame from an
orifice; also, that which issues in a jet.
[1913 Webster]
2. Drift; scope; range, as of an argument. [Obs.]
[1913 Webster]
3. The sprue of a type, which is broken from it when the type
is cold. --Knight.
[1913 Webster]
Jet propeller (Naut.), a device for propelling vessels by
means of a forcible jet of water ejected from the vessel,
as by a centrifugal pump.
Jet pump, a device in which a small jet of steam, air,
water, or other fluid, in rapid motion, lifts or otherwise
moves, by its impulse, a larger quantity of the fluid with
which it mingles.
[1913 Webster] |
Propeller wheel
(gcide) | Propeller \Pro*pel"ler\, n.
[1913 Webster]
1. One who, or that which, propels.
[1913 Webster]
2. A contrivance for propelling a steam vessel, usually
consisting of a screw placed in the stern under water, and
made to revolve by an engine; a propeller wheel.
[1913 Webster]
3. A steamboat thus propelled; a screw steamer.
[1913 Webster]
Propeller wheel,the screw, usually having two or more
blades, used in propelling a vessel.
[1913 Webster] |
Screw propeller
(gcide) | Screw \Screw\ (skr[udd]), n. [OE. scrue, OF. escroue, escroe,
female screw, F. ['e]crou, L. scrobis a ditch, trench, in
LL., the hole made by swine in rooting; cf. D. schroef a
screw, G. schraube, Icel. skr[=u]fa.]
1. A cylinder, or a cylindrical perforation, having a
continuous rib, called the thread, winding round it
spirally at a constant inclination, so as to leave a
continuous spiral groove between one turn and the next, --
used chiefly for producing, when revolved, motion or
pressure in the direction of its axis, by the sliding of
the threads of the cylinder in the grooves between the
threads of the perforation adapted to it, the former being
distinguished as the external, or male screw, or, more
usually the screw; the latter as the internal, or female
screw, or, more usually, the nut.
[1913 Webster]
Note: The screw, as a mechanical power, is a modification of
the inclined plane, and may be regarded as a
right-angled triangle wrapped round a cylinder, the
hypotenuse of the marking the spiral thread of the
screw, its base equaling the circumference of the
cylinder, and its height the pitch of the thread.
[1913 Webster]
2. Specifically, a kind of nail with a spiral thread and a
head with a nick to receive the end of the screw-driver.
Screws are much used to hold together pieces of wood or to
fasten something; -- called also wood screws, and {screw
nails}. See also Screw bolt, below.
[1913 Webster]
3. Anything shaped or acting like a screw; esp., a form of
wheel for propelling steam vessels. It is placed at the
stern, and furnished with blades having helicoidal
surfaces to act against the water in the manner of a
screw. See Screw propeller, below.
[1913 Webster]
4. A steam vesel propelled by a screw instead of wheels; a
screw steamer; a propeller.
[1913 Webster]
5. An extortioner; a sharp bargainer; a skinflint; a niggard.
--Thackeray.
[1913 Webster]
6. An instructor who examines with great or unnecessary
severity; also, a searching or strict examination of a
student by an instructor. [Cant, American Colleges]
[1913 Webster]
7. A small packet of tobacco. [Slang] --Mayhew.
[1913 Webster]
8. An unsound or worn-out horse, useful as a hack, and
commonly of good appearance. --Ld. Lytton.
[1913 Webster]
9. (Math.) A straight line in space with which a definite
linear magnitude termed the pitch is associated (cf. 5th
Pitch, 10
(b) ). It is used to express the displacement of a rigid
body, which may always be made to consist of a
rotation about an axis combined with a translation
parallel to that axis.
[1913 Webster]
10. (Zool.) An amphipod crustacean; as, the skeleton screw
(Caprella). See Sand screw, under Sand.
[1913 Webster]
Archimedes screw, Compound screw, Foot screw, etc. See
under Archimedes, Compound, Foot, etc.
A screw loose, something out of order, so that work is not
done smoothly; as, there is a screw loose somewhere. --H.
Martineau.
Endless screw, or perpetual screw, a screw used to give
motion to a toothed wheel by the action of its threads
between the teeth of the wheel; -- called also a worm.
Lag screw. See under Lag.
Micrometer screw, a screw with fine threads, used for the
measurement of very small spaces.
Right and left screw, a screw having threads upon the
opposite ends which wind in opposite directions.
Screw alley. See Shaft alley, under Shaft.
Screw bean. (Bot.)
(a) The curious spirally coiled pod of a leguminous tree
(Prosopis pubescens) growing from Texas to
California. It is used for fodder, and ground into
meal by the Indians.
(b) The tree itself. Its heavy hard wood is used for
fuel, for fencing, and for railroad ties.
Screw bolt, a bolt having a screw thread on its shank, in
distinction from a key bolt. See 1st Bolt, 3.
Screw box, a device, resembling a die, for cutting the
thread on a wooden screw.
Screw dock. See under Dock.
Screw engine, a marine engine for driving a screw
propeller.
Screw gear. See Spiral gear, under Spiral.
Screw jack. Same as Jackscrew.
Screw key, a wrench for turning a screw or nut; a spanner
wrench.
Screw machine.
(a) One of a series of machines employed in the
manufacture of wood screws.
(b) A machine tool resembling a lathe, having a number of
cutting tools that can be caused to act on the work
successively, for making screws and other turned
pieces from metal rods.
Screw pine (Bot.), any plant of the endogenous genus
Pandanus, of which there are about fifty species,
natives of tropical lands from Africa to Polynesia; --
named from the spiral arrangement of the pineapple-like
leaves.
Screw plate, a device for cutting threads on small screws,
consisting of a thin steel plate having a series of
perforations with internal screws forming dies.
Screw press, a press in which pressure is exerted by means
of a screw.
Screw propeller, a screw or spiral bladed wheel, used in
the propulsion of steam vessels; also, a steam vessel
propelled by a screw.
Screw shell (Zool.), a long, slender, spiral gastropod
shell, especially of the genus Turritella and allied
genera. See Turritella.
Screw steamer, a steamship propelled by a screw.
Screw thread, the spiral rib which forms a screw.
Screw stone (Paleon.), the fossil stem of an encrinite.
Screw tree (Bot.), any plant of the genus Helicteres,
consisting of about thirty species of tropical shrubs,
with simple leaves and spirally twisted, five-celled
capsules; -- also called twisted-horn, and twisty.
Screw valve, a stop valve which is opened or closed by a
screw.
Screw worm (Zool.), the larva of an American fly
(Compsomyia macellaria), allied to the blowflies, which
sometimes deposits its eggs in the nostrils, or about
wounds, in man and other animals, with fatal results.
Screw wrench.
(a) A wrench for turning a screw.
(b) A wrench with an adjustable jaw that is moved by a
screw.
To put the screws on or To put the screw on, to use
pressure upon, as for the purpose of extortion; to coerce.
To put under the screw or To put under the screws, to
subject to pressure; to force.
Wood screw, a metal screw with a sharp thread of coarse
pitch, adapted to holding fast in wood. See Illust. of
Wood screw, under Wood.
[1913 Webster] |
Steam propeller
(gcide) | Steam \Steam\ (st[=e]m), n. [OE. stem, steem, vapor, flame, AS.
ste['a]m vapor, smoke, odor; akin to D. stoom steam, perhaps
originally, a pillar, or something rising like a pillar; cf.
Gr. sty`ein to erect, sty^los a pillar, and E. stand.]
1. The elastic, aeriform fluid into which water is converted
when heated to the boiling point; water in the state of
vapor; gaseous water.
[1913 Webster + PJC]
2. The mist formed by condensed vapor; visible vapor; -- so
called in popular usage.
[1913 Webster]
3. Any exhalation. "A steam of rich, distilled perfumes."
--Milton.
[1913 Webster]
Dry steam, steam which does not contain water held in
suspension mechanically; -- sometimes applied to
superheated steam.
Exhaust steam. See under Exhaust.
High steam, or High-pressure steam, steam of which the
pressure greatly exceeds that of the atmosphere.
Low steam, or Low-pressure steam, steam of which the
pressure is less than, equal to, or not greatly above,
that of the atmosphere.
Saturated steam, steam at the temperature of the boiling
point which corresponds to its pressure; -- sometimes also
applied to wet steam.
Superheated steam, steam heated to a temperature higher
than the boiling point corresponding to its pressure. It
can not exist in contact with water, nor contain water,
and resembles a perfect gas; -- called also {surcharged
steam}, anhydrous steam, and steam gas.
Wet steam, steam which contains water held in suspension
mechanically; -- called also misty steam.
[1913 Webster]
Note: Steam is often used adjectively, and in combination, to
denote, produced by heat, or operated by power, derived
from steam, in distinction from other sources of power;
as in steam boiler or steam-boiler, steam dredger or
steam-dredger, steam engine or steam-engine, steam
heat, steam plow or steam-plow, etc.
[1913 Webster]
Steam blower.
(a) A blower for producing a draught consisting of a jet
or jets of steam in a chimney or under a fire.
(b) A fan blower driven directly by a steam engine.
Steam boiler, a boiler for producing steam. See Boiler,
3, and Note. In the illustration, the shell a of the
boiler is partly in section, showing the tubes, or flues,
which the hot gases, from the fire beneath the boiler,
enter, after traversing the outside of the shell, and
through which the gases are led to the smoke pipe d, which
delivers them to the chimney; b is the manhole; c the
dome; e the steam pipe; f the feed and blow-off pipe; g
the safety valve; hthe water gauge.
Steam car, a car driven by steam power, or drawn by a
locomotive.
Steam carriage, a carriage upon wheels moved on common
roads by steam.
Steam casing. See Steam jacket, under Jacket.
Steam chest, the box or chamber from which steam is
distributed to the cylinder of a steam engine, steam pump,
etc., and which usually contains one or more valves; --
called also valve chest, and valve box. See Illust. of
Slide valve, under Slide.
Steam chimney, an annular chamber around the chimney of a
boiler furnace, for drying steam.
Steam coil, a coil of pipe, or a collection of connected
pipes, for containing steam; -- used for heating, drying,
etc.
Steam colors (Calico Printing), colors in which the
chemical reaction fixing the coloring matter in the fiber
is produced by steam.
Steam cylinder, the cylinder of a steam engine, which
contains the piston. See Illust. of Slide valve, under
Slide.
Steam dome (Steam Boilers), a chamber upon the top of the
boiler, from which steam is conducted to the engine. See
Illust. of Steam boiler, above.
Steam fire engine, a fire engine consisting of a steam
boiler and engine, and pump which is driven by the engine,
combined and mounted on wheels. It is usually drawn by
horses, but is sometimes made self-propelling.
Steam fitter, a fitter of steam pipes.
Steam fitting, the act or the occupation of a steam fitter;
also, a pipe fitting for steam pipes.
Steam gas. See Superheated steam, above.
Steam gauge, an instrument for indicating the pressure of
the steam in a boiler. The mercurial steam gauge is a
bent tube partially filled with mercury, one end of which
is connected with the boiler while the other is open to
the air, so that the steam by its pressure raises the
mercury in the long limb of the tube to a height
proportioned to that pressure. A more common form,
especially for high pressures, consists of a spring
pressed upon by the steam, and connected with the pointer
of a dial. The spring may be a flattened, bent tube,
closed at one end, which the entering steam tends to
straighten, or it may be a diaphragm of elastic metal, or
a mass of confined air, etc.
Steam gun, a machine or contrivance from which projectiles
may be thrown by the elastic force of steam.
Steam hammer, a hammer for forging, which is worked
directly by steam; especially, a hammer which is guided
vertically and operated by a vertical steam cylinder
located directly over an anvil. In the variety known as
Nasmyth's, the cylinder is fixed, and the hammer is
attached to the piston rod. In that known as Condie's, the
piston is fixed, and the hammer attached to the lower end
of the cylinder.
Steam heater.
(a) A radiator heated by steam.
(b) An apparatus consisting of a steam boiler, radiator,
piping, and fixures for warming a house by steam.
Steam jacket. See under Jacket.
Steam packet, a packet or vessel propelled by steam, and
running periodically between certain ports.
Steam pipe, any pipe for conveying steam; specifically, a
pipe through which steam is supplied to an engine.
Steam plow or Steam plough, a plow, or gang of plows,
moved by a steam engine.
Steam port, an opening for steam to pass through, as from
the steam chest into the cylinder.
Steam power, the force or energy of steam applied to
produce results; power derived from a steam engine.
Steam propeller. See Propeller.
Steam pump, a small pumping engine operated by steam. It is
usually direct-acting.
Steam room (Steam Boilers), the space in the boiler above
the water level, and in the dome, which contains steam.
Steam table, a table on which are dishes heated by steam
for keeping food warm in the carving room of a hotel,
restaurant, etc.
Steam trap, a self-acting device by means of which water
that accumulates in a pipe or vessel containing steam will
be discharged without permitting steam to escape.
Steam tug, a steam vessel used in towing or propelling
ships.
Steam vessel, a vessel propelled by steam; a steamboat or
steamship; a steamer.
Steam whistle, an apparatus attached to a steam boiler, as
of a locomotive, through which steam is rapidly
discharged, producing a loud whistle which serves as a
warning or a signal. The steam issues from a narrow
annular orifice around the upper edge of the lower cup or
hemisphere, striking the thin edge of the bell above it,
and producing sound in the manner of an organ pipe or a
common whistle.
[1913 Webster] |
Tractor propeller
(gcide) | Tractor \Tract"or\, n. [NL., from L. trahere, tractum, to draw.]
1. That which draws, or is used for drawing.
[1913 Webster]
2. pl. (Med.) Two small, pointed rods of metal, formerly used
in the treatment called Perkinism.
[1913 Webster]
3. a motor vehicle with a powerful engine and large wheels,
used to pull farm equipment such as plows, harvesting
machinery, etc., over farm land. Smaller forms of farm
tractor are completely open, with only a seat for the
driver.
[PJC]
4. a motor vehicle with a driver's cab and a powerful engine,
fitted with a coupling at the rear, and designed to pull a
large trailer or semi-trailer on the open highway; --
called also truck tractor. The combination of such a
tractor with its trailer is called a tractor-trailer, and
is a common form of truck used for commercial shipping of
freight.
[PJC]
5. (Aviation) A propeller screw placed in front of the
supporting planes of an aeroplane instead of behind them,
so that it exerts a pull instead of a push; -- called also
Tractor screw and Tractor propeller.
[Webster 1913 Suppl.]
6. (Aviation) An airplane having one or more tractor
propellers; -- called also tractor airplane.
[Webster 1913 Suppl.]Tractor screw \Tractor screw\ or Tractor propeller \Tractor
propeller\ (Aviation)
A propeller screw placed in front of the supporting planes of
an airplane instead of behind them, so that it exerts a pull
instead of a push. Hence,
Tractor monoplane,
Tractor biplane, etc. This is the most common arrangement
for propellers on modern airplanes.
[Webster 1913 Suppl.] |
airplane propeller
(wn) | airplane propeller
n 1: a propeller that rotates to push against air [syn:
airplane propeller, airscrew, prop] |
double-propeller plane
(wn) | double-propeller plane
n 1: a propeller plane with an engine that drives two propellers
in opposite directions (for stability) [syn: double-prop,
double-propeller plane, twin-prop, {twin-propeller-
plane}] |
propeller
(wn) | propeller
n 1: a mechanical device that rotates to push against air or
water [syn: propeller, propellor] |
propeller plane
(wn) | propeller plane
n 1: an airplane that is driven by a propeller |
screw propeller
(wn) | screw propeller
n 1: a propeller with several angled blades that rotates to push
against water or air [syn: screw, screw propeller] |
single-propeller plane
(wn) | single-propeller plane
n 1: a propeller plane with a single propeller [syn: {single
prop}, single-propeller plane] |
turbo-propeller plane
(wn) | turbo-propeller plane
n 1: an airplane with an external propeller that is driven by a
turbojet engine [syn: propjet, turboprop, {turbo-
propeller plane}] |
twin-propeller-plane
(wn) | twin-propeller-plane
n 1: a propeller plane with an engine that drives two propellers
in opposite directions (for stability) [syn: double-prop,
double-propeller plane, twin-prop, {twin-propeller-
plane}] |
variable-pitch propeller
(wn) | variable-pitch propeller
n 1: propeller for which the angle of the blades is adjustable |
propeller head
(foldoc) | propeller head
Used by hackers, this is synonym with {computer
geek}. Non-hackers sometimes use it to describe all techies.
Probably derives from SF fandom's tradition (originally
invented by old-time fan Ray Faraday Nelson) of propeller
beanies as fannish insignia (though nobody actually wears them
except as a joke).
[Jargon File]
(1995-01-18)
|
propeller key
(foldoc) | feature key
beanie key
clover key
command key
flower key
kyrka
pretzel key
propeller key
(Or "flower", "pretzel", "clover", "propeller",
"beanie" (from propeller beanie), splat, "command key") The
Macintosh modifier key with the four-leaf clover graphic
on its keytop.
The feature key is the Mac's equivalent of a control key
(and so labelled on some Mac II keyboards). The proliferation
of terms for this creature may illustrate one subtle peril of
iconic interfaces. Macs also have an "Option" modifier key,
equivalent to Alt.
The cloverleaf-like symbol's oldest name is "cross of
St. Hannes", but it occurs in pre-Christian Viking art as a
decorative motif. In Scandinavia it marks sites of historical
interest. An early Macintosh developer who happened to be
Swedish introduced it to Apple. Apple documentation gives the
translation "interesting feature".
The symbol has a Unicode character called "PLACE OF INTEREST
SIGN" (U+2318), previously known as "command key".
The Swedish name of this symbol stands for the word
"sev"ardhet" (interesting feature), many of which are old
churches. Some Swedes report as an idiom for it the word
"kyrka", cognate to English "church" and Scots-dialect "kirk"
but pronounced /shir'k*/ in modern Swedish. Others say this
is nonsense.
(http://fileformat.info/info/unicode/char/2318/index.htm).
[Jargon File]
(2005-09-15)
|
propeller head
(jargon) | propeller head
n.
Used by hackers, this is syn. with geek. Non-hackers sometimes use it to
describe all techies. Prob. derives from SF fandom's tradition (originally
invented by old-time fan Ray Faraday Nelson) of propeller beanies as
fannish insignia (though nobody actually wears them except as a joke).
|
propeller key
(jargon) | propeller key
n.
[Mac users] See feature key.
|
|