from The Century Dictionary and Cyclopedia
- n. In mining, an escape of air from an ascending working in which it has been confined and compressed by a head of water in some connecting passage with a seal at its foot.
- n. In mining, a method of ventilation, in which an apparatus is employed which is the same in principle as the trompe of the Catalan forge. See trompe.
Sorry, no etymologies found.
To this the foot-blast was added, as still used in Ceylon and in India; and afterwards the water-blast, as employed in Spain (where it is known as the Catalan forge), along the coasts of the Mediterranean, and in some parts of America.
Market Master Semi Tamata said the council had told the vendors last Thursday the market would be closed to allow workers to water-blast and spray the interior of the building.
"We did water-blast him last summer and he cleaned up real well," Warneke said.
Onyx was contracted to water-blast concrete to expose aggregate after work was carried out to remedy leaks.