TERMIUM Plus®

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

CROWN BLOCK [12 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 2013-10-01

English

Subject field(s)
  • Oil Drilling
  • Petroleum Technology - Equipment
  • Ground-Drilling Facilities (Mining)
  • Boring and Drilling (Mines)
DEF

The pole or bar on the top of a drill derrick to which a pulley tackle is fastened and used to hoist and place the crown block on top of a drill derrick.

French

Domaine(s)
  • Forage des puits de pétrole
  • Appareillage (Technologie pétrolière)
  • Installations de forage minier
  • Sondage et forage miniers
DEF

Chevalement supérieur de la tour servant à la mise en place du moufle fixe lors du montage.

OBS

chèvre : terme recommandé officiellement par le Gouvernement français.

Spanish

Save record 2

Record 3 2012-01-24

English

Subject field(s)
  • Oil Drilling
  • Boring and Drilling (Mines)
DEF

To recover bottomhole fluids, samples, or drill cuttings by lowering a cylindrical vessel called a bailer to the bottom of a well, filling it, and retrieving it.

CONT

Water must be present in the bottom of the hole to keep the rock fragments in suspension, and from time to time the excess water and rock particles must be bailed out.

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 for bailing out the well, and the drilling line...

French

Domaine(s)
  • Forage des puits de pétrole
  • Sondage et forage miniers
DEF

Vider un forage des sédiments, détritus, eau et autres objets qui l'encombrent au moyen d'une cuiller à clapet.

PHR

Curer un puits.

Spanish

Save record 3

Record 4 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond : create the table; mark the girdle for the pavilion; create 8 pavilion mains : 4 corners; 4 pavilion facets; re-mark the girdle for the crown; create 8 crown mains : 4 corners; 4 bezels; ensure the crown and the pavilion facets are in alignment;-lap the diamond :... b) brillianteer the diamond :...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

Création des 8 facettes principales de culasse : 4 coins, 4 pavillons; marquage du rondiste; création des 8 facettes principales de couronne : 4 coins, 4 bezels; vérification de la symétrie des facettes de couronne et de culasse.

Spanish

Save record 4

Record 5 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

To create the final 40 facets: 8 stars, 16 crown halves, 16 pavilion halves.

CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond :...-lap the diamond :... b) brillianteer the diamond : create the final 40 facets : 8 stars; 16 crown halves; 16 pavilion halves; re-smooth the table, if required.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Placer les 40 dernières facettes : 8 étoiles, 16 haléfis de couronne et 16 haléfis de culasse.

CONT

On brillante le diamant notamment lors d'une taille brillant.

Spanish

Save record 5

Record 6 2006-03-11

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
DEF

... the top of the drilling derrick or mast that supports the crown block.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
OBS

Pluriel : des plateformes, des plates-formes.

OBS

plateforme (sing.); plateformes (pl.) : Ces graphies, puisées des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004).

Key term(s)
  • plateforme du sommet de derrick

Spanish

Save record 6

Record 7 2004-12-14

English

Subject field(s)
  • Hats and Millinery
CONT

Over the two days the course covers the essential techniques in constructing a ’blocked’ hat-one that's formed on a wooden millinery crown and brim block in either felt, straw or sinamay.

French

Domaine(s)
  • Chapellerie
CONT

[Un chapeau est bloqué lorsqu'il est] formé sur un moule d'aluminium ou de bois.

Spanish

Save record 7

Record 8 2004-07-15

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond :...-lap the diamond : re-mark the girdle for the pavilion; smooth : 4 corners; 4 pavilion facets; re-mark the girdle for the crown; smooth : 4 corners; 4 bezels; table; if a facetted culet is desired, create the facet after the second corner is smoothed; ensure the crown and the pavilion facets are in alignment; b) brillianteer the diamond :...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 8

Record 9 2000-07-12

English

Subject field(s)
  • Oil Drilling
DEF

To thread the drilling line through the sheaves of the crown block and traveling block.

OBS

One end of the line is secured to the hoisting drum, and the other is anchored to the derrick substructure.

French

Domaine(s)
  • Forage des puits de pétrole
DEF

Préparer les moufles et les câbles pour la descente ou la remontée des tubes (dans un puits).

OBS

moufler : Construction par inférence au verbe moufler à partir du substantif «mouflage» et de l'adjectif «mouflé» (Grand dictionnaire encyclopédique Larousse, 1982, vol.7, p. 7142).

Spanish

Save record 9

Record 10 2000-06-27

English

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

An arrangement of pulleys, or sheaves, through which drilling cable is reeved and that moves up and down in the derrick or mast.

CONT

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

The kelly is suspended by a hook-and-swivel assembly to a traveling block, which is connected by a steel cable to a crown block at the top of the drilling rig.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
  • Forage des puits de pétrole
  • Installations de forage minier
  • Appareils de levage mobiles
DEF

Dans un derrick, moufle inférieur du palan de levage et portant le crochet; il est relié au moufle fixe par le câble de forage.

CONT

Le palan mobile ou «traveling block» comprend quatre poulies de 42". Ce dernier pèse à lui seul près de cinq tonnes.

Spanish

Save record 10

Record 11 1999-11-03

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
  • Mining Equipment and Tools
OBS

The brand name of a special air-relay valve mounted near the crown that, when struck by the traveling block, sends air pressure to the air brakes of the drawworks, thereby preventing the traveling block from striking the crown.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
  • Outillage et équipement (Exploitation minière)

Spanish

Save record 11

Record 12 1999-11-03

English

Subject field(s)
  • Chains and Cables (Mechanical Components)
  • Oil Drilling
DEF

A wire rope used to support the drill tools.

CONT

The rig includes a square open tower or derrick... 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 for raising and lowering the drilling tools.

CONT

The drilling line is raised and dropped by a walking-beam mechanism driven by a steam, gasoline, or diesel engine.

CONT

The cable drilling bit is made of a heavy bar of steel or iron 4 to 11 feet ... long, shaped to a blunt edge on one end. The other end has a tapered tool joint for attachment to the drilling cable.

CONT

The percussion bit is alternately lifted and dropped while suspended at the end of the drilling cable.

French

Domaine(s)
  • Câbles et chaînes (Composants mécaniques)
  • Forage des puits de pétrole

Spanish

Save record 12

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