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 72
n ; and to satisfy himself th;tt my plan was correct, he had unionjoints in the delivering pipe, and also in the returning pipe, so curvedthat, when turned down, they were below the level of the bottom of theboiler; and the consequence was, the hot water was as much cut off as ifa stopcock had been… … a. Feeder, and to allow for the expansion of /, Reservoir. the water. b. Stopcock in the top of the boiler, which serves as a guide to till the boiler. c. Boiler. d. Delivering pipe. e. Keturning pipe. g. Pipe connected with delivering pipe.h. Pipe connected with returning pipe.i. Pipe and funnel…