The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 291
, it is to be slacked in the kiln, by opening thecocks e e, which permit a flow of water down through thevertical axes, or tubes, ff, which are perforated with nume-rous holes, below the level of the line, and are armed withvanes, or knives, round their circumference; and, being causedslowly to… … preventing it from clogging, and in swelling (for lime in slack-ing increases greatly in bulk) bulging out the boilers. Whenthe lime is all slacked, the stoppers h h are to be pulled out,and, by touching a trigger, the grates b b fall down, and per-mit the lime to be raked out at the bottom. One of…