Related WordNet synsets for SUMO concept EngineeringComponent

More specialized WordNet synsets

action
the operating part that transmits power to a mechanism; "the piano had a very stiff action"
and circuit, and gate
a circuit in a computer that fires only when all of its inputs fire
anode
positive pole
audio
the sound elements of television
automobile engine
the engine that propels an automobile
auxiliary boiler, donkey boiler
an extra boiler (as a ship's boiler that is used while the ship is in port)
auxiliary engine, donkey engine
a small engine (as one used on board ships to operate a windlass)
auxiliary pump, donkey pump
a supplementary pump available if needed
axis, axis of rotation
the center around which something rotates
ax head, axe head
the cutting head of an ax
axle bar
an iron bar that serves as an axletree
axle
a shaft on which a wheel rotates
axletree
a dead axle on a carriage or wagon that has terminal spindles on which the wheel revolve
backspace key, backspacer
the typewriter key used for back spacing
baffle, baffle board
controls or directs flow of fluid or energy
ball-and-socket joint
a joint that can rotate within a socket
ballast resistor, barretter
a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
barrel, gun barrel
through which bullet travels when gun is fired
barrel vault
the simplest for of vault; a single continuous arch
base, pedestal, stand
a support or foundation; "the base of the lamp"
base
(electronics) the part of a transistor that separates the emitter from the collector
B battery
battery for supplying a constant positive voltage to the plate of a vacuum tube
belt
endless loop of flexible material between two rotating shafts or pulleys
bilge keel
either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling
bilge well
(nautical) a well where seepage drains to be pumped away
bit
the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press; "he looked around for the right size bit"
bridge, bridge circuit
a circuit consisting of two branches (4 arms arranged in a diamond configuration) across which a meter is connected
bridged-T
a circuit consisting of a T-network with an additional arm bridging the two series arms
brush
conducts current between rotating and stationary parts of a generator or motor
busbar, bus
an electrical conductor that makes a common connection between several circuits; "the busbar in this computer can transmit data either way between any two components of the system"
butterfly valve
a valve in a carburetor that consists of a disc that turns and acts as a throttle
butt joint, butt
a joint made by fastening ends together without overlapping
bypass condenser, bypass capacitor
a capacitor that provides low impedance over certain (high) frequencies
cabinet, console
housing for electronic instruments, as radio or television
cable, electrical cable, line, transmission line
an electrical conductor connecting telephones or television or power stations
cam
shaped rotating disk to convert circular into linear motion
camshaft
has cams attached to it
capacitor, condenser, electrical condenser
an electrical device characterized by its capacitance
cap screw
a threaded screw for machine parts; screws into a tapped hole
carriage
a machine part that carries something else
cartridge
a module designed to be inserted into a larger piece of equipment; "he loaded a cartridge of fresh tape into the tape deck"
cascade transformer
a number of transformers in series; provides a high-voltage source
cathode
negative pole
C battery
battery used to maintain the grid potential in a vacuum tube
cell, electric cell
a device that delivers an electric current as the result of a chemical reaction
central processing unit, CPU, C.P.U., central processor, processor, mainframe
( computer science) the part of a computer (a microprocessor chip) that does most of the data processing; the CPU and the memory form the central part of a computer to which the peripherals are attached
chassis
a metal mounting for the circuit components of an electronic device
chip, microchip, micro chip, silicon chip
a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit
circuit, electrical circuit, electric circuit
a path for electrical current to flow
circuit board, circuit card, board, card
a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
circuit breaker
a device that trips like a switch and opens the circuit when overloaded
circuitry
a system of circuits
clack valve, clack
simple non-return valve
Clark cell, Clark standard cell
a form of voltaic cell once used as a standard for electromotive force
cleat
angle iron used as a bracket
clock face, clock dial
the face of a clock showing hours and minutes of the day
clock pendulum
a physical pendulum used to regulate a clockwork mechanism
clockwork
any mechanism of geared wheels that is driven by a coiled spring; resembles the works of a mechanical clock
closed circuit, loop
a complete electrical circuit around which current flows or a signal circulates
clutch
connects or disconnects driving and driven parts of a driving mechanism
clutch, clutch pedal
operates a clutch
coaxial cable, coax, coax cable
a transmission line for high-frequency signals
cog, sprocket
on the rim of gear wheel
coil
a spiral of insulated wire that introduces inductance into a circuit
coil
tubing that is wound in a spiral
coin box
the part of a slot machine that holds the coins
coil
a transformer that supplies high voltage to spark plugs in a gasoline engine
coil spring, volute spring
a spring in the shape of a coil
coin slot
a slot through which coins can be inserted into a slot machine
collector
the electrode in a transistor through which a primary flow of carriers leaves the inter-electrode region
color tube, colour tube, color television tube, colour television tube, color TV tube, colour TV tube
a television tube that displays images in full color
commutator
for reversing the direction of an electric current
computer circuit
(computer science) a circuit that is part of a computer
computer screen, computer display
a screen used to display the output of a computer to the user
cone clutch, cone friction clutch
a clutch in which the frictional surfaces are cone-shaped
connecting rod
a rod that transmits motion (especially one that connects a rotating wheel to a reciprocating shaft)
console
an instrument consisting of displays and an input device that an operator can use to monitor and control a system (especially a computer system)
contact, tangency
a junction where things (as two electrical conductors) touch or are in physical contact; "they forget to solder the contacts"
control, controller
a mechanism that controls the operation of a machine; "the speed control on his turntable was not working properly"; "I turned the controls over to her"
control circuit, negative feedback circuit
a feedback that is subtracted from the input
control key, command key
(computer science) the key on a computer keyboard that is used (in combination with some other key) to type control characters
control panel, instrument panel, control board, board, panel
an insulated panel containing switches and dials and meters for controlling electrical devices; "he checked the instrument panel"; "suddenly the board lit up like a Christmas tree"
corbel arch
(architecture) an arch constructed of masonry courses that are corbelled until they meet
corbel, truss
(architecture) a triangular bracket of brick or stone (usually of slight extent)
corner post
a square post supporting a structural member at the corner of a building
cornerstone
a stone out the outer corner of two intersecting masonry walls
corrugated fastener, wiggle nail
a small strip of corrugated steel with sharp points on one side; hammered across wood joints in rough carpentry
cotter, cottar
a wedge or pin inserted through a slot to hold two other pieces together
cotter pin
a split pin that is secured (after passing through a hole) by splitting the ends apart
cover plate
a plate used to cover over or close in a chamber or receptacle
CPU board, mother board
the main circuit board for a computer
cowl, cowling, hood
metal part that covers the engine
cramp, cramp iron
a strip of metal with ends bent at right angles; used to hold masonry together
crankshaft
a rotating shaft driven by (or driving) a crank
crankcase
housing for a crankshaft
cross hair, cross wire
either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration; "he had the target in his cross hairs"
crosshead
metal block that connects to a piston; it slides on parallel guides and moves a connecting rod back and forth
crosspiece
a transverse brace
cylinder head
a detachable plate that covers the closed end of a cylinder chamber in a reciprocating engine or pump
cylinder, piston chamber
within which piston moves
dead axle
an axle that carries a wheel but without power to drive it
delay line
a circuit designed to introduce a calculated delay into the transmission of a signal
dial
the face of a timepiece; graduated to show the hours
dial, telephone dial
a disc on a telephone that is rotated a fixed distance for each number called
dial
the circular graduated indicator on various measuring instruments
dial
the control on a radio or television set that is used for tuning
diaphragm
vibrates to receive or produce sound waves
diaphragm, stop
controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"
differential gear, differential
a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves
digital display, alphanumeric display
a display that gives the information in the form of characters (numbers or letters)
diode, semiconductor diode, junction rectifier, crystal rectifier
a semiconductor that consists of a P-N junction
diode, rectifying tube, rectifying valve
a thermionic tube having two electrodes; used as a rectifier
DIP switch, dual inline package switch
(computer science) one of a set of small on-off switches mounted in computer hardware; used in place of jumpers to configure the machine for a user
discharge pipe
a pipe through which fluids can be discharged
disk controller
(computer science) a circuit or chip that translates commands into a form that can control a hard disk drive
distributor cam
the cam inside the distributor that rotates to contact spark plug terminals in the correct order
distributor, distributer, electrical distributor
device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence
distributor cap
the cap of the distributor that holds in place the wires from the distributor to the spark plugs
distributor point, breaker point, point
a contact in the distributor; as the rotor turns its projecting arm contacts distributor points and current flows to the spark plugs
dovetail, dovetail joint
a mortise joint formed by interlocking tenons and mortises
dowel, dowel pin, joggle
inserts into holes in two adjacent pieces and holds them together
drive line, drive line system
mechanism that transmits power from the engine to the driving wheels of a motor vehicle
driveshaft
a rotating shaft that transmits power from the engine to the point of application
driving belt
a belt that carries motion from a motor to the machinery
driving wheel
a wheel that drives a motor vehicle (transforms torque into a tractive force)
dynamo
a coil (the armature) rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature
echelon
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
electrical contact
allows current to pass from one conductor to another
electrode
a conductor used to make electrical contact with some nonmetallic part of a circuit
electrolytic, electrolytic capacitor, electrolytic condenser
a fixed capacitor consisting of two electrodes separated by an electrolyte
electromagnetic delay line
a delay line based on the time of propagation of electromagnetic waves
electron gun
the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it
electronic balance
generates a current proportional to displacement of pan
electrophorus
a simple electrostatic generator that generates repeated charges of static electricity
electron multiplier
a vacuum tube that amplifies a flow of electrons
emitter
the electrode in a transistor where electrons originate
engine block, cylinder block, block
a metal casting containing the cylinders and cooling ducts of an engine; "the engine had to be replaced because the block was cracked"
epicyclic train, epicyclic gear train
a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
escapement
regulates movement
escape wheel
engages a rocking lever
exhaust, exhaust system
the parts of an engine through which burned gases or steam are discharged
exhaust pipe
a pipe through which burned gases travel from the exhaust manifold to the muffler
exhaust manifold
a manifold that receives exhaust gases from the cylinders and conducts them to the exhaust pipe
exhaust valve
a valve through which burned gases from a cylinder escape into the exhaust manifold
eyepiece, ocular
combination of lenses at the viewing end of optical instruments
fan belt
a belt driven by the crankshaft that drives a fan that pulls air through the radiator
fan blade
blade of a rotating fan
feedback circuit
a circuit that feeds back some of the output to the input of a system
fender, wing
surrounds the wheels of a vehicle; "in England they call a fender a wing"
field coil, field winding
the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine
fifth wheel
a steering bearing that enables the front axle of a horse-drawn wagon to rotate
filament
a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
fillet, stopping
a narrow strip of welded metal used to join steel members
firing chamber, gun chamber
the part of a gun that receives the charge
firing pin
ignites the charge by striking the primer
first gear, first, low gear, low
the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
fish joint
a butt joint formed by bolting fish plates to the sides of two rails or beams
fishplate
metal plate bolted along sides of two rails or beams
fitting
a small and often standardized accessory to a larger system
flap, flaps
a movable airfoil that is part of an aircraft wing; used to increase lift or drag
flintlock
a gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge
flip-flop
an electronic circuit that can assume either of two stable states
fluid drive
an automotive power coupling
flywheel
a heavy wheel that stores kinetic energy and smoothes the operation of a reciprocating engine
Francis turbine
a type of hydroelectric turbine
fuel cell
produces electricity by oxidation of fuel (hydrogen-oxygen or zinc-air); for use in electric cars
fuel filter
a filter in the fuel line that screens out dirt and rust particles from the fuel
fuel line, gas line
a pipe that carries gasoline from a tank to a gasoline engine; "the car wouldn't start because dirt clogged the gas line"
full-wave rectifier
converts the negative half wave of an alternating current into a positive half wave
gas fitting
the fitting (pipes or valves or meters) that convey gas from the gas main to the gas fixtures of a building
gas fixture
a device to convey illuminating gas from the pipe to the gas burner
gasket
a ring for packing pistons or sealing a pipe joint
gate
a circuit with several inputs but only one output that can be activated by particular combinations of inputs
gear, gear wheel, cogwheel
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
gearbox, gear case
the metal casing in which a train of gears is sealed
gear, gear mechanism
a mechanism for transmitting motion by gears for some specific purpose (as the steering gear of a vehicle)
gearset
a set of gears
grid, control grid
an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
grinding wheel, emery wheel
a wheel composed of abrasive material; used for grinding
gunlock, firing mechanism
a device for igniting the charge in a firearm
gun trigger, trigger
activates the firing mechanism of a gun
gusset, inset
a piece of material inset to strengthen or enlarge a garment
gusset, gusset plate
a metal plate used to strengthen a joist
hair trigger
a gun trigger that responds with little pressure
hairspring
a fine spiral spring that regulates the movement of the balance wheel in a timepiece
hammer
the felt-covered striker that causes the piano strings to vibrate
hammer
the part of a gunlock that strikes the percussion cap when the trigger is pulled
hand
a rotating pointer on the face of a timepiece; "the big hand counts the minutes"
hardware, computer hardware
the mechanical, magnetic, electronic, and electrical, devices making up a computer system
harp
a pair of curved vertical supports for a lampshade
header
a framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters
head gasket
a gasket to seal a cylinder head
headstock
the stationary part of a machine or power tool that supports and drives a revolving part (as a chuck or the spindle on a lathe)
heating pad, hot pad
electrical heating elements contained in a flexible pad
hinge, flexible joint
a device that holds two parts together so that one can swing relative to the other
hinging post, swinging post
the gatepost on which the gate is hung
hood, bonnet
hinged metal part that covers the engine
hour hand, little hand
points to the hours
housing
a protective cover for a mechanical part
I-beam
having a cross section resembling the letter `I'
ignition coil
an induction coil that converts current from a battery into the high-voltage current required by spark plugs
ignition switch
switch that operates a solenoid that closes a circuit to operate the starter
impeller
the blade of a rotor (as in the compressor of a jet engine)
inductor
an electrical device that introduces inductance into a circuit
inlet manifold
carries vaporized fuel from the carburetor to the inlet valves of the cylinders
intake manifold
a manifold consisting of a pipe to carry fuel to each cylinder in an internal-combusition engine
intake valve
a valve that controls the flow of fluid through an intake
integrated circuit, microcircuit
a microelectronic circuit incorporated into a chip of semiconductor; a whole system rather than a single component
interface, port
(computer science) hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)
joint
by which parts or objects are joined together
joist
used to support floors or roofs
journal
the part of the axle contained by a bearing
journal bearing
the bearing of a journal
journal box
metal housing for a journal bearing
jumper
a small connector used to make temporary electrical connections
jumper cable, jumper lead, lead
a jumper that consists of a short piece of wire; "it was a tangle of jumper cables and clip leads"
junction barrier, barrier strip
a unit for connecting 2 cables without the need for plugs
keel
one of the main longitudinal beams (or plates) of a vessel; can extend vertically into the water to provide lateral stability
keelson
a longitudinal beam connected to the keel of ship to strengthen it
Kerr cell
a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam
kingbolt, kingpin, swivel pin
provides a steering joint in a motor vehicle
king post
connecting the crossbeam to the apex of a triangular truss
knuckle joint, hinge joint
a joint allowing movement in one plane only
lag screw, lag bolt
a heavy wood screw with a square or hexagonal head that is driven in with a wrench
lally, lally column
steel cylinder filled with concrete
lantern pinion, lantern wheel
a small pinion having cylindrical bars instead of teeth, used chiefly in inexpensive clocks
lap joint, splice
made by overlapping two ends and joining them together
lead-in
a wire connecting an antenna to a receiver or a transmitter to a transmission line
Leclanche cell
a primary cell; produces approximately 1.5 volts
lever, lever tumbler
a flat metal tumbler in a lever lock
light circuit, lighting circuit
wiring that provides power to electric lights
light-emitting diode, LED
light emitted at a p-n junction is proportional to the bias current; color depends on the material used
limiter, clipper
a circuit that limits the amplitude of a waveform
linchpin, lynchpin
a pin inserted through an axletree to hold a wheel on
link, linkup, tie, tie-in
a fastener that serves to join or link; "the walls are held together with metal links placed in the wet mortar during construction"
link, data link
an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
linkage
a mechanical system of rods or springs or pivots that transmits power or motion
live axle, driving axle
the axle of a self-propelled vehicle that provides the driving power
lock
a mechanism that detonates the charge of a gun
locknut
a supplementary nut that is screwed down on a primary nut to prevent it from loosening
lockring, lock washer
a washer that prevents a nut from loosening
logic element
an electronic device that performs an elementary logic operation
louver, louvre, fin
one of a set of parallel slats in a door or window to admit air and reject rain
machine bolt
a threaded hexagonal or square-headed bolt with a nut; tightened with a wrench; used to connect metal parts
machine screw
a threaded fastener used either with a nut or with a tapped hole; slotted head can be driven by a screwdriver
magnetic needle
a slender magnet suspended in a magnetic compass on a low-friction mounting; used to indicate the direction of the earth's magnetic pole
magnetron
a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
main
a principal pipe in a system that distributes water or gas or electricity or that collects sewage
mainspring
the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
main rotor
the large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the air
manifold
a pipe that has several lateral outlets to or from other pipes
memory, storage, store, memory board
an electronic memory device; "a memory and the CPU form the central part of a computer to which peripherals are attached"
memory chip
a RAM microchip that can be plugged into a computer to provide additional memory
mercury cell
a primary cell consisting of a zinc anode, a cathode of mercury oxide, and an electrolyte of potassium hydroxide
metal screw
a screw made of metal
microprocessor
an integrated circuit semiconductor chip that performs the bulk of the processing and controls the parts of a system; "a microprocessor functions as the central processing unit of a microcomputer"; "a disk drive contains a microprocessor to handle the internal functions of the drive"
minute hand, big hand
points to the minutes
miter joint, mitre joint
a joint that forms a corner (usually bevelled at a 45-degree angle to give a 90-degree corner)
module
a self-contained unit or item that is used in combination with other units
module
a detachable section of a spacecraft
module
an assembly of electronic components (as of computer hardware)
moldboard, mouldboard
the curved part of the steel plow blade that turns the furrow
movement
the driving and regulating parts of a mechanism (as of a watch or clock); "it was an expensive watch with a diamond movement"
nacelle
a streamlined enclosure for an aircraft engine
nail
a thin pointed piece of metal that is hammered into materials as a fastener
needle
a slender pointer for indicating the reading on the scale of a measuring instrument
nose cone, ogive
conical head of a missile or rocket that protects the payload from heat during its passage through the atmosphere
nut
a small square or hexagonal metal block with internal screw thread to be fitted onto a bolt
nut and bolt
a fastener made by screwing a nut onto a threaded bolt
open circuit
an incomplete electrical circuit in which no current flows
or circuit, or gate
a circuit in a computer that fires when any of its inputs fire
O ring
a gasket consisting of a flat ring of rubber or plastic; used to seal a joint against high pressure
orthicon, image orthicon
a now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused on a storage photo-mosaic for scanning
overdrive
a high gear used at high speeds to maintain the driving speed with less output power
paddle
a blade of a paddle wheel or water wheel
panel
a distinct (usually flat) section or component of something
parallel interface, parallel port
n interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously
park
a gear position that acts as a parking brake; "the put the car in park and got out"
patchcord
has plug at each end; used to make connections at a patchboard
pawl, detent, click, dog
a hinged device that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
PC board
a removable circuit board for a personal computer; fits into a slot in the mother board
pentode
a thermionic tube having five electrodes
photocathode
a cathode that emits electrons when illuminated
photoelectric cell, photocell, electric eye, magic eye
a device used to detect and measure light and other radiations
piezoelectric crystal
a crystal that can be used as a transducer
pin
two-part cylindrical tumblers held in place by springs; when they are aligned with a key the bolt can be thrown
pinion
a gear with a small number of teeth designed to mesh with a larger wheel or rack
pintle
a pin or bolt forming the pivot of a hinge
pipefitting, pipe fitting
threaded pieces of pipe for joining pipes together
piston, plunger
a part of a machine that has a plunging or thrusting motion
piston ring
split metal ring that seals the gap between a piston and the cylinder wall
piston rod
rod that moves or is moved by a piston
pivot, pin
a short shaft that supports something that turns
plate
a horizontal beam that provides bearing and anchorage
poppet, poppet valve
a mushroom-shaped valve that rises perpendicular from its seat; commonly used in internal-combustion engines
positive pole
the terminal of a battery that is connected to the positive plate
potential divider, voltage divider
resistors connected in series across a voltage source; used to obtain a desired fraction of the voltage
potentiometer, pot
a 3-terminal resistor with an adjustable center terminal; used to adjust voltages in radios and TV sets
primary coil, primary winding, primary
current through primary coil induces current in secondary coil
printed circuit
an electronic sub-assembly; copper conductors are laminated on an insulating board or card and circuit components are inserted into pre-drilled holes and dip soldered
pulse timing circuit
a circuit that times pulses
rabbet, rebate
a rectangular groove made to hold two pieces together
rabbet joint
a joint formed by fitting together two rabbeted boards
rack and pinion
a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa)
radiator hose
a flexible hose between the radiator and the engine block
radio chassis
a chassis for a radio receiver
rafter, balk, baulk
one of several parallel sloping beams that support a roof
railway junction
a junction where two or more railway lines meet or cross
ratchet, rachet, ratch
a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
reactor
an electrical circuit element used to introduce reactance into the circuit
read/write head, head
(computer science) a tiny electromagnetic coil and metal pole used to write and read magnetic patterns on a disk
receptacle
an electrical (or electronic) fitting that is connected to a source of power and equipped to receive an insert
reducer
joins two pipes of different diameter
relay, electrical relay
current flowing in one circuit can switch on and off a current in a second circuit
resistor, resistance
an electrical device that resists the flow of electrical current
resonator
any system that resonates
resonator
an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude
rider plate
a horizontal beam (or plate) connected to the top of a ship's vertical keel or to the keelson
ridge, ridgepole, rooftree
a beam laid along the ridge of a roof; provides attachment for upper end of rafters
rivet
having a head at one end and the other end being hammered flat after being passed through holes in the pieces that are fastened together
rotating shaft, shaft
a revolving rod that transmits power or motion
rotor head, rotor shaft
the axis around which the major rotor of a helicopter turns
rudderpost, rudderstock
a vertical post at the forward edge of a rudder that enables the rudder to pivot
scantling, stud
an upright in house framing
screw
a fastener with a tapered threaded shank and a slotted head
screw eye
a woodscrew having its shank bent into a ring
secondary coil, secondary winding, secondary
current is induced in the secondary coil by passing a current through the primary coil
second gear, second
the second lowest forward gear ratio in the gear box of a motor vehicle; "he had to shift down into second to make the hill"
selenium cell
a photoelectric cell that uses a strip of selenium
semiconductor device, semiconductor unit, semiconductor
a device made with semiconducting material
serial port
an interface (commonly used for modems and mice and some printers) that transmits data a bit at a time
servo, servomechanism, servosystem
converts a small mechanical motion into one requiring much greater power; may include a negative feedback system
sheathing, overlay, overlayer
a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior
shelf bracket
a bracket to support a shelf
shell plating
the plates covering the frame of a steel ship and corresponding to the planking of a wooden ship
short circuit
when two points that have a potential difference come into contact the circuit is said to be shorted
shunt, electrical shunt
a low-resistance conductor connected in parallel with a device to divert a fraction of the current
sixpenny nail
a nail 2 inches long
slip ring
metal ring on a rotating part of a machine to provide a continuous electrical connection through brushes on stationary contacts
socket
a receptacle into which an electric device can be inserted
socle
a plain plinth that supports a wall
solar cell, photovoltaic cell
a cell that converts solar energy into electrical energy
solenoid
a coil of wire around an iron core; becomes a magnet when current passes through the coil
spare part, spare
an extra component of a machine or other apparatus
spark coil
an induction coil used to create sparks
spark gap
a unit consisting of electrodes and the space between them
spark plug, sparking plug, plug
fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
spark transmitter
an early radio transmitter using a discharge across a spark gap as the source of its power
speculum
a mirror (especially one made of polished metal) for use in an optical instrument
spike
a long metal nail
spindle, mandrel, mandril, arbor
any of various shafts that rotate or serve as axes for larger rotating parts
spiral spring
a spring that is wound like a spiral
spoke, radius
a radial member of a wheel joining the hub to the rim
spring
a metal device that returns to its shape or position when pushed or pulled or pressed; "the spring was broken"
sprocket, sprocket wheel
thin wheel with teeth that engage with a chain
sprocket
has teeth on the rims to pull film or paper through
spur gear, spur wheel
gear wheels that mesh in the same plane
standard cell
a primary cell used as a standard of electro-motive force
stator, stator coil
stationary part of a motor or generator in or around which the rotor revolves
steam chest
the chamber from which steam is distributed to a cylinder
steam line
a pipe conducting steam
steering linkage
a system of rods and levers connected to the front wheels of a motor vehicle; the steering gear pushes the steering linkage left or right which swivels the front wheels causing the vehicle to turn
storage cell, secondary cell
a cell that can be recharged
stove bolt
a small machine bolt
stovepipe
a metal pipe of large diameter used to connect a stove to a flue
strap hinge
a hinge with two long straps; one strap is fastened to the surface of a moving part (e.g., a door or lid) and the other is fastened to the adjacent stationary frame
striker
the part of a mechanism that strikes something
stringer
a long horizontal timber to connect uprights
stringer
a longitudinal member to strengthen a fuselage or hull
strut
a bar or rod used to resist longitudinal compression
stud, boss, rivet
circular rounded protuberance (as on a vault or shield or belt)
stub nail
a short thick nail
sun gear
the central gear in a epicyclic train
switch
a mechanical, electrical, or electronic device for making or breaking or changing the connections in a circuit
swivel
a coupling (as in a chain) that has one end that turns on a headed pin
system clock
an electronic circuit in a computer that issues a steady high-frequency signal that synchronizes all the internal components
tack
a short nail with a sharp point and a large head
tail, tail assembly, empennage
the rear part of an aircraft
tank circuit
an oscillatory circuit
tee hinge, T hinge
a hinge that looks like the letter T when it is opened; similar to a strap hinge except that one strap has been replaced by half of a butt hinge that can be mortised flush into the stationary frame
television-camera tube, television pickup tube
a tube that rapidly scans an information-bearing mosaic
tenon
a projection at the end of a piece of wood that is shaped to fit into a mortise and form a mortise joint
tenpenny nail
a nail 3 inches long
Tesla coil
a step-up transformer with an air core; used to produce high voltages at high frequencies
tetrode
a thermionic tube having four electrodes
thermistor, thermal resistor
a semiconductor made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit
thermocouple, thermocouple junction
two wires of different metals are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
thermojunction
a junction between two dissimilar metals across which a voltage appears
thill
one of two shafts extending from the body of a cart or carriage on either side of the animal that pulls it
threshold element, threshold gate
a logic element that performs a threshold operation
thrust bearing
a bearing designed to take thrusts parallel to the axis of revolution
thumbscrew
screw designed to be turned with the thumb and fingers
thwart, cross thwart
a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat
tickler coil
a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback
tie, railroad tie, crosstie, sleeper
one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
tie, tie beam
a horizontal beam used to prevent two other structural members from spreading apart or separating; "he nailed the rafters together with a tie beam"
tie rod
either of two rods that link the steering gear to the front wheels
tintack
tack or small nail of tinned iron
T-junction
a junction where two roads or pipes etc meet to form a T
toggle joint
a joint made by two arms attached by a pivot; used to apply pressure at the two ends by straightening the joint
tongue and groove joint
a mortise joint made by fitting a projection on the edge of one board into a matching groove on another board
transformer
an electrical device by which alternating current of one voltage is changed to another voltage
transistor, junction transistor
a semiconductor device capable of amplification
transmission shaft
transmits rotary motion from the engine to the differential
trave, traverse, crossbeam, crosspiece
a horizontal beam that extends across something
treenail, trenail, trunnel
a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast
trimmer, trimmer joist
receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc.
triode
a thermionic tube having three electrodes
truss
an assemblage of beams forming a rigid structure (as a roof truss)
tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve
a system of electrodes arranged in an evacuated glass or metal envelope
tumbler
a movable obstruction in a lock that must be adjusted to given position (as by a key) before the bolt can be thrown
undercarriage
framework that supports the body of a vehicle
universal joint, universal
coupling that connects two rotating shafts allowing freedom of movement in all directions; "in motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps"
voltaic cell, galvanic cell, primary cell
an electric cell that generates an emf by an irreversible conversion of chemical to electrical energy; cannot be recharged
wall plate
a timber along the top of a wall to support the ends of joists, etc., and distribute the load
washer
a flat disk placed to prevent leakage
watch case
the metal case in which the works of a watch are housed
weather strip, weather stripping
a strip of material to cover the joint of a door or window to exclude the cold
weld
a metal joint formed by softening with heat and fusing or hammering together
Weston cell, cadmium cell
`Weston' is the trademark for a standard voltaic cell
wet cell
a primary cell having a liquid electrolyte
wing nut, wing screw, thumbnut
nut with winglike projections for thumb and forefinger leverage in turning
wiper, wiper arm, contact arm
a conducting arm that rotates over a series of contacts and comes to rest on an outlet
wire, conducting wire
a metal conductor that carries electricity over a distance
wiring
a circuit of wires for the distribution of electricity
woodscrew
a metal screw that tapers to a point so that it can be driven into wood with a screwdriver
works, workings
the internal mechanism of a device
worm
threads gear with the teeth of a worm wheel or rack
worm gear
a shaft with screw thread (the worm) meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion
worm wheel
gearing with the thread of a worm
wrist pin, gudgeon pin
pin joining a piston to a connecting rod
x-or circuit, xor circuit, xor gate
exclusive or; a circuit in a computer that fires only if only one of its inputs fire
X-ray tube
a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
yoke, coupling
connects two things so they move together
redundancy
(electronics) a system design that duplicates components to provide alternatives in case one component fails
forward
of the transmission gear causing forward movement in a motor vehicle; "in a forward gear"
second
having the second highest gear ratio; "second gear"
first, low
being the gear producing the lowest drive speed; "use first gear on steep hills"
reverse
of the transmission gear causing backward movement in a motor vehicle; "in reverse gear"
bearing(a)
(of a structural member) withstanding a weight or strain
load-bearing(a), supporting(a)
capable of bearing a structural load; "a supporting wall"
nonbearing
(of a structural member) supporting no vertical weight other than its own; "they took out a nonbearing wall"
siamese
connecting two or more pipes or hoses or having such a connection; "a Y-shaped siamese joint"; "siamese fire-hose lines"
transistorized
(of an electronic device) equipped with transistors
back-geared, double-geared
(of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley; "a back-geared lathe"
geared
equipped with or connected by gears or having gears engaged
double-geared
equipped with compound gearing consisting of 2 pinions and 2 wheels in mesh to increase the mechanical advantage; "the double-geared lifting mechanism of a crane"
cogged
having cogs; "a cogged wheel"
wired
equipped with wire or wires especially for electric or telephone service; "a well-wired house"
cathodic
of or at or pertaining to a cathode; "cathodic deposition of metals"
anodic, anodal
of or at or relating to an anode
closed-circuit
relating to or consisting of a closed circuit; "closed-circuit television"
microelectronic
of or relating to or consisting of miniature electronic components
epicyclic, epicyclical
of or relating to an epicycle; "epicyclic gear train"
wireless (opposite)
having no wires; "a wireless security system"
cordless (opposite)
not having a cord; "cordless telephone"