grate-bar

A worker uses a grate-bar to stoke the furnace.

Definition

1. Noun (technical):
   • A bar that forms part of a grate: A "grate-bar" is a single metal bar within a grate structure, typically used in furnaces or fireplaces to hold fuel (such as coal or wood) and allow ash to fall through the gaps between bars.
   • Component of a fire grate: In engineering or metallurgy, a "grate-bar" refers to an individual bar in a grate system designed to support solid fuel while permitting air circulation and ash removal.

Usage Examples

• Noun:
  • The blacksmith replaced a broken grate-bar in the furnace. (He replaced one metal bar that was part of the grate.)
  • Each grate-bar must be spaced evenly to ensure proper airflow for combustion. (The bars in the grate need uniform gaps.)
  • Ash fell through the gaps between the grate-bars into the pit below. (The spaces between individual bars allowed ash to drop.)

Advanced Usage

• "to replace a grate-bar": to remove and install a new bar in a grate system.

  • The technician had to replace a grate-bar that had warped from the intense heat. (A bar had become bent due to high temperatures.)

• "grate-bar spacing": the distance between adjacent bars in a grate.

  • Proper grate-bar spacing prevents large clumps of fuel from falling through. (The gaps must be small enough to retain solid fuel.)

Variants and Related Words

• Grate (noun): a framework of parallel bars that holds fuel in a fireplace or furnace.

  • The grate was made of cast iron. (The framework of bars was constructed from cast iron.)

• Grate-bar (compound noun): used interchangeably with "grate bar" (sometimes written as two words).

  • He ordered a set of grate bars for the industrial boiler. (He purchased multiple individual bars for the grate.)

• Fire grate (noun): a grate specifically designed for holding a fire.

  • The fire grate in the hearth was covered in soot. (The grate used for a fireplace was dirty.)

Synonyms

• Fire bar: a bar in a grate used in a fireplace or furnace.

  • The fire bars were too close together, restricting air flow. (The grate bars were poorly spaced.)

• Grate rod: a rod-like bar in a grate (less common).

  • The grate rod snapped under the weight of the coal. (The bar broke.)

Related Idioms

• No idioms are directly associated with "grate-bar," as it is a highly technical term. However, the word "grate" appears in the idiom "to grate on one's nerves" (to irritate), which is unrelated to the technical meaning.