TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CROWN WHEEL [4 records]

Record 1 2017-10-31

English

Subject field(s)
  • Ground-Drilling Facilities (Mining)
  • Equipment (Oil and Natural Gas Extraction)
DEF

A pulley, set of pulleys, or sheaves at the top of a drill derrick on and over which the hoist and/or other lines run.

CONT

The crown block is an assembly of sheaves mounted on beams at the top of the derrick. The drilling cable is reeved over the sheaves of the crown block alternately with the sheaves of the traveling block, which is hoisted and lowered in the derrick by means of the drilling cable.

CONT

At the top of the derrick there is a crown block containing pulley wheels over which are run three steel cables: the casing line ..., the sand line ..., and the drilling line ...

French

Domaine(s)
  • Installations de forage minier
  • Outillage (Extraction du pétrole et du gaz)
DEF

Ensemble des poulies de renvoi placées au sommet de l'appareil de forage.

CONT

[Un moufle fixe] composé [...] de poulies montées [...] sur un même axe [...] monté sur un bâti comprend une petite poulie fixée au-dessous du bâti et qui sert à la manœuvre du câble de curage.

Spanish

Save record 1

Record 2 2016-09-02

English

Subject field(s)
  • Gears and Friction Wheels
  • Clocks, Watches and Bells
DEF

A contrate wheel in the winding mechanism of a watch that drives the ratchet wheel and is itself driven by the winding-stem pinion.

French

Domaine(s)
  • Engrenages et roues de friction
  • Horlogerie et sonnerie
CONT

Le pignon de remontoir, par l'intermédiaire de la roue de couronne, va entraîner le rochet qui est fixé sur le carré de l'arbre de barillet.

Spanish

Save record 2

Record 3 2016-09-02

English

Subject field(s)
  • Gears and Friction Wheels
  • Clocks, Watches and Bells
DEF

The crown-shaped ... escape wheel of a verge escapement timepiece.

CONT

The classic form for a timepiece ... was the verge escapement ... This consists of a crown wheel (i.e. a gearwheel shaped like a crown) driven by a weight and repeatedly checked by the action of a pair of metal pallets that alternately stop successive teeth.

French

Domaine(s)
  • Engrenages et roues de friction
  • Horlogerie et sonnerie
CONT

La tige étant suspendue en face de la roue à couronne ou roue de rencontre, il est clair que lorsque cette roue tourne et qu'une de ses dents écarte la palette [...] puis s'échappe, l'autre palette [...] se présente à une dent diamétralement opposée qui l'écarte à son tour, vu que la roue tourne dans le même sens.

Spanish

Save record 3

Record 4 2006-10-03

English

Subject field(s)
  • Gears and Friction Wheels
  • Wheels (Mechanical Components)
  • Mechanical Construction
DEF

A bevel gear with a reference cone angle of 90°.

OBS

crown gear; crown wheel: terms and definition standardized by ISO.

French

Domaine(s)
  • Engrenages et roues de friction
  • Roues (Composants mécaniques)
  • Construction mécanique
DEF

Roue conique dont l'angle de référence est de 90º.

OBS

roue plate : terme et définition normalisés par l'ISO.

Spanish

Save record 4

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