gear : Idioms & Phrases


Automatic expansion gearcut-off

  • one that is regulated by the governor, and varies the supply of steam to the engine with the demand for power.
Webster 1913

back-geared

  • adjective satellite (of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley
    back-geared.
    • a back-geared lathe
WordNet

bevel gear

  • noun gears that mesh at an angle
    bevel gear; pinion and crown wheel.
WordNet
Bev"el gear`
Definitions
  1. (Mech.) A kind of gear in which the two wheels working together lie in different planes, and have their teeth cut at right angles to the surfaces of two cones whose apices coincide with the point where the axes of the wheels would meet.
Webster 1913

Bever gear

  • . See Bevel gear.
Webster 1913

Chafing gear

  • noun covering (usually rope or canvas) of a line or spar to protect it from friction
WordNet
  • (Naut.), any material used to protect sails, rigging, or the like, at points where they are exposed to friction.
Webster 1913

Core gear

  • a mortise gear, or its skeleton. See Mortise wheel, under Mortise.
Webster 1913

differential gear

  • noun 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
    differential.
WordNet

Differential gearing

  • a train of toothed wheels, usually an epicyclic train, so arranged as to constitute a differential motion.
Webster 1913

Double geared

  • driven through twofold compound gearing, to increase the force or speed; said of a machine.
Webster 1913

double-geared

  • adjective satellite 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
  • adjective satellite (of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley
    back-geared.
    • a back-geared lathe
WordNet

Eccentric gear

  • . (Mach.) (a) The whole apparatus, strap, and other parts, by which the motion of an eccentric is transmitted, as in the steam engine. (b) A cogwheel set to turn about an eccentric axis used to give variable rotation.
Webster 1913

Engaging and disengaging gear ∨ machinery

  • that in which, or by means of which, one part is alternately brought into gear or out of gear with another part, as occasion may require.
Webster 1913

epicyclic gear

  • noun an outer gear that revolves about a central sun gear of an epicyclic train
    planet gear; planet wheel; epicyclic gear.
WordNet

epicyclic gear train

  • noun a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
    epicyclic train.
WordNet

Expansion gear

  • (Stream Engine). a cut-off gear. See Illust. of Link motion.
Webster 1913

Feed gear

  • . See Feed motion, under Feed, n.
Webster 1913

Feed motion, ∨ Feed gear

  • (Mach.), the train of mechanism that gives motion to the part that directly produces the feed in a machine.
Webster 1913

first gear

  • noun the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
    low; first gear; first.
WordNet

fishing gear

  • noun gear used in fishing
    tackle; fishing rig; rig; fishing tackle.
WordNet

Fixed expansion gear, ∨ Fixed cut-off

  • one that always operates at the same fixed point of the stroke.
Webster 1913

Foot gear

  • covering for the feet, as stocking, shoes, or boots.
Webster 1913

foul-weather gear

  • noun protective garment that is intended to keep the wearer dry and warm in bad weather
WordNet

Friction gear

  • . See Frictional gearing, under Frictional.
Webster 1913

Frictional gearing

  • wheels which transmit motion by surface friction instead of teeth. The faces are sometimes made more or less V-shaped to increase or decrease friction, as required.
Webster 1913

gear box

  • noun the shell (metal casing) in which a train of gears is sealed
    gearbox; gear box.
WordNet

gear case

  • noun the shell (metal casing) in which a train of gears is sealed
    gearbox; gear box.
WordNet

Gear cutter

  • a machine or tool for forming the teeth of gear wheels by cutting.
Webster 1913

gear lever

  • noun a mechanical device for engaging and disengaging gears
    gearshift; shifter; gearstick.
    • in Britain they call a gearshift a gear lever
WordNet

gear mechanism

  • noun a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)
    gear.
WordNet

gear up

  • verb make ready or suitable or equip in advance for a particular purpose or for some use, event, etc
    set; prepare; fix; set up; ready.
    • Get the children ready for school!
    • prepare for war
    • I was fixing to leave town after I paid the hotel bill
WordNet

Gear wheel

  • noun a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
    cogwheel; gear wheel; gear.
WordNet
  • any cogwheel.
Webster 1913

geared wheel

  • noun a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
    cogwheel; gear wheel; gear.
WordNet

Hand gear

  • (Mach.), apparatus by means of which a machine, or parts of a machine, usually operated by other power, may be operated by hand.
Webster 1913

head gear

Head" gear`, Head"gear` noun (Also<
  • Head gear
  • Headgear
)
Definitions
  1. Headdress.
  2. Apparatus above ground at the mouth of a mine or deep well.
Webster 1913

high gear

  • noun a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed
    high.
WordNet

hooke's gearing

Hooke's" gear"ing
Etymology
So called from the inventor.
Definitions
  1. (Mach.) Spur gearing having teeth slanting across the face of the wheel, sometimes slanting in opposite directions from the middle.
Webster 1913

in gear

  • adjective satellite having gears engaged
    • the car is in gear
WordNet

Intermittent gearing

  • (Mach.), gearing which receives, or produces, intermittent motion.
Webster 1913

Internal gear

  • (Mach.), a gear in which the teeth project inward from the rim instead of outward.
Webster 1913

landing gear

  • noun an undercarriage that supports the weight of the plane when it is on the ground
WordNet

low gear

  • noun the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
    low; first gear; first.
WordNet

Multiplying gear

  • (Mach.), gear for increasing speed.
Webster 1913

Mutilated gear, Mutilated wheel

  • (Mach.), a gear wheel from a portion of whose periphery the cogs are omitted. It is used for giving intermittent movements.
Webster 1913

out of gear

  • adjective satellite not having gears engaged
    • threw the machine's pinion out of gear
WordNet

pinion and ring gear

  • noun gears that mesh at an angle
    bevel gear; pinion and crown wheel.
WordNet

Planet gear

  • noun an outer gear that revolves about a central sun gear of an epicyclic train
    planet gear; planet wheel; epicyclic gear.
WordNet
  • . (Mach.) See Epicyclic train, under Epicyclic.
Webster 1913

planetary gear

  • noun an outer gear that revolves about a central sun gear of an epicyclic train
    planet gear; planet wheel; epicyclic gear.
WordNet

Pump gear

  • the apparatus belonging to a pump. Totten.
Webster 1913

reduction gear

  • noun gearing that reduces an input speed to a slower output speed
WordNet

reverse gear

  • noun the gears by which the motion of a machine can be reversed
    reverse.
WordNet

Reversing gear

  • (Mach.), gear for reversing the direction of rotation at will.
Webster 1913

Running gear

  • the wheels and axles of a vehicle, and their attachments, in distinction from the body; all the working parts of a locomotive or other machine, in distinction from the framework.
Webster 1913

Screw gear

  • . See Spiral gear, under Spiral.
Webster 1913

second gear

  • noun the gear that has the second lowest forward gear ratio in the gear box of a motor vehicle
    second.
    • he had to shift down into second to make the hill
WordNet

Segment gear

  • a piece for receiving or communicating reciprocating motion from or to a cogwheel, consisting of a sector of a circular gear, or ring, having cogs on the periphery, or face.
Webster 1913

Shrouded gear

  • (Mach.), a cogwheel or pinion having flanges which form closed ends to the spaces between the teeth and thus strengthen the teeth by tying them together.
Webster 1913

Skew gearing, ∨ Skew bevel gearing

  • (Mach.), toothed gearing, generally resembling bevel gearing, for connecting two shafts that are neither parallel nor intersecting, and in which the teeth slant across the faces of the gears.
Webster 1913

Spiral gear, ∨ Spiral wheel

  • (Mach.), a gear resembling in general a spur gear, but having its teeth cut at an angle with its axis, or so that they form small portions of screws or spirals.
Webster 1913

Spiral gearing

  • a kind of gearing sometimes used in light machinery, in which spiral gears, instead of bevel gears, are used to transmit motion between shafts that are not parallel.
Webster 1913

Spur gear

  • noun gear wheels that mesh in the same plane
    spur wheel.
WordNet
  • (Mach.), a cogwheel having teeth which project radially and stand parallel to the axis; a spur wheel.
Webster 1913

Spur gearing

  • gearing in which the teeth or cogs are ranged round either the concave or the convex surface (properly the latter) of a cylindrical wheel; for transmitting motion between parallel shafts, etc.
Webster 1913

stable gear

  • noun gear for a horse
    saddlery; tack.
WordNet

steering gear

  • noun a gear that couples the steering wheel to the steering linkage of a motor vehicle
WordNet

Stepped gear

  • a cogwheel of which the teeth cross the face in a series of steps.
Webster 1913

sun gear

  • noun the central gear in an epicyclic train
WordNet

third gear

  • noun the third from the lowest forward ratio gear in the gear box of a motor vehicle
    third.
    • you shouldn't try to start in third gear
WordNet

To throw in, ∨ out of, gear

  • (Mach.), to connect or disconnect (wheelwork or couplings, etc.); to put in, or out of, working relation.
Webster 1913

Valve gear, ∨ Valve motion

  • (Steam Engine), the system of parts by which motion is given to the valve or valves for the distribution of steam in the cylinder. For an illustration of one form of valve gear, see Link motion.
Webster 1913

Worm gear

  • noun gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion
WordNet
  • . (Mach.) (a) A worm wheel. (b) Worm gearing.
Webster 1913

Worm gearing

  • gearing consisting of a worm and worm wheel working together.
Webster 1913