1. An open channel constructed of steel, reinforced concrete, or wood and used to convey water to be utilized for power, to transport logs, and so on. 2. To divert by a flume, as the waters of a stream, in order to lay bare the auriferous sand and gravel forming the bed.


Related Terms

PLUG CUTTER

A device for boring out short dowels or plugs from wood that exactly match standard drill sizes.

PILOT HOLE

1. In metal-forming operations, a prepunched hole in a metal strip into which the pilot component of the die enters in order to assure precise registration of the strip at each work station. 2. A small hole drilled ahead of a larger borehole. 3. A hole drilled in a piece of wood to serve as a guide for a nail or a screw or for drilling a larger hole.

PARTING TOOL

A narrow-bladed hand tool with a V-shaped gouge used in woodworking for cutting grooves and in wood turning for cutting a piece in two. Also known as V-tool.

PARTING STOP

A thin strip of wood that separates the sashes in a double-hung window.

NAILER

A wood strip or block which serves as a backing into which nails can be driven.

MITER BOX

A troughlike device of metal or wood with vertical slots set at various angles in the upright sides, for guiding a handsaw in making a miter joint.

MILL BUILDING

A steel-frame building in which roof trusses span columns in the outside wall; originally, this type of building housed milling machinery, as for wood or metal, hence the name.

MECHANICAL PULPING

Mechanical, rather than chemical, recovery of cellulose fibers from wood; unpurified, finely ground wood is made into newsprint, cheap Manila papers, and tissues.

LOWRY PROCESS

A system for wood preservation which uses atmospheric pressure at the start and then introduces preservative into the wood in a vacuum.

LAUNCHING CRADLE

A framework made of wood to support a vessel during launching from sliding ways.

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