from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tapering cylinder used in metal crafting, usually made of steel, which is used to expand or measure a ring or hole in another piece of metal up to a desired size.
from the GNU version of the Collaborative International Dictionary of English
- n. A goldsmith's tool used in making rings.
- n. A steel cylinder round which metal is drawn in the process of forming tubes.
- n. A tapering mandrel.
from The Century Dictionary and Cyclopedia
- n. A mandrel used in forging tubes, nuts, and rings, and for other purposes.
- n. The mandrel in a machine for making lead pipe.
Sorry, no etymologies found.
The Lord be praist, that's a thing I'm seldom triblet wi '.
It is then drawn through a series of holes, until the lead is extended upon the triblet from one end to the other, and is of the proper thickness in proportion to the size of the pipe.
It was then placed in a furnace, and being taken out when raised to a welding heat, a triblet, or cylinder of iron, was placed in it, and the whole was passed quickly through a pair of rollers.
A steel triblet, therefore, is first passed into the tube, which is then drawn through a succession of holes, until the outside diameter is reduced to the required size.
A cylinder of lead, of five or six inches in diameter and about two feet long, is cast with a small hole through its axis, and an iron triblet of about fifteen feet in length is forced into the hole.