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HOLLOW GRINDING [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-07-24

English

Subject field(s)
  • Physical Geography (General)
  • Geomorphology and Geomorphogeny
  • Erosion and Weathering (Geol.)
DEF

A smooth, bowl-shaped or cylindrical hollow, generally deeper than wide, formed in the rocky bed of a stream by the grinding action of a stone or stones, or of coarse sediment(sand, gravel, pebbles, boulders), whirled around and kept in motion by eddies or the force of the stream current in a given spot, as at a strong rapid or the foot of a waterfall.

OBS

The synonym kettle should be used cautiously.

OBS

plunge pool: term used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • pot hole

French

Domaine(s)
  • Géographie physique (Généralités)
  • Géomorphologie et géomorphogénie
  • Érosion et corrosion (Géologie)
DEF

Cavité cylindrique, pouvant atteindre quelques mètres, entaillée dans le lit rocheux d'une rivière par le mouvement tourbillonnaire des galets.

OBS

marmite de géant : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Geografía física (Generalidades)
  • Geomorfología y geomorfogénesis
  • Erosión y corrosión (Geología)
DEF

Depresión de forma circular creada en las rocas del fondo de los torrentes a causa de la erosión causada al moverse en ella los bloques de roca que contienen.

Save record 1

Record 2 2006-12-14

English

Subject field(s)
  • Tools and Equipment (Mechanics)
  • Sports Equipment and Accessories
  • Skating
CONT

An ice-skate sharpener comprising a stationary electric motor grinder including a diamond bit carried by an arm pivoted on a support adjacent the grinding wheel and serving to dress the peripheral face of the grinding wheel to the desired transverse curvature, so that an ice-skate blade can be sharpened with the desired hollow ground.

French

Domaine(s)
  • Outillage (Mécanique)
  • Équipement et accessoires de sport
  • Patinage
DEF

Appareil servant à aiguiser les lames de patins.

Spanish

Save record 2

Record 3 2003-07-08

English

Subject field(s)
  • Mineral Processing (Metallurgy)
  • Mining Equipment and Tools
  • Processing of Mineral Products
DEF

A machine for the wet or dry fine crushing of ore or other material.

CONT

Crushers are used when the feed (material to be processed) is coarse; grinding mills, when the feed is relatively fine.

OBS

The three main types [of grinding mill] are the ball, rod, and tube mills. The mill consists of a rotating cylindrical drum and the ore enters one hollow trunnion and the finished product leaves the other.

French

Domaine(s)
  • Minéralurgie (Métallurgie)
  • Outillage et équipement (Exploitation minière)
  • Préparation des produits miniers
DEF

Machine destinée à réduire en poudre plus ou moins fine des morceaux de matériau peu résilient.

CONT

Broyage. Le minerai concassé à 8 à 12 mm est amené à la fraction de millimètre exigée, contrôlée à la sortie du broyeur par un classificateur qui recycle les fragments encore trop gros [...]

OBS

En principe, il n'existe pas de différence entre le concassage et le broyage [...]; toutefois, en pratique, le premier terme exprime une réduction en blocs plus gros que le second, une division moins poussée de la matière.

Spanish

Save record 3

Record 4 2003-03-18

English

Subject field(s)
  • Facilities and Equipment (Wood Industries)
  • Grinding (Machine-Tooling)
  • Plywood
DEF

A veneer peeler knife whose excessive grinding on a lathe has caused an overheating of the metal blade resulting in the upwards expansion of the knife edge and a hollow in the knife after cooling.

Key term(s)
  • hollow ground knife

French

Domaine(s)
  • Installations et équipement (Industr. du bois)
  • Meulage (Usinage)
  • Contreplaqués
DEF

Couteau de dérouleuse à contreplaqués dont l'affûtage excessif a causé un échauffement du métal provoquant un arquage de la lame et l'apparition d'une arête creuse, après le refroidissement.

Spanish

Save record 4

Record 5 1987-11-26

English

Subject field(s)
  • Grinding (Machine-Tooling)
  • Precision Grinding

French

Domaine(s)
  • Meulage (Usinage)
  • Rectification (Usinage)

Spanish

Save record 5

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