Jobbing-pipe
A technical term for all pipes that are irregular in form, including elbows, turns, branch, and numerous others, which must of necessity be moulded by such means as are most convenient for the occasion, without reference to cost, etc. Pipes of this character are usually made in the most approved fashion by skilled moulders who work by the day; while the regular trade straight lengths are made, as a rule, by unskilled labor, in vertical casings that are so elaborately mounted as to preclude any possibility of going astray. See CAST-IRON PIPES; JOBBING-MOULDER.