. Journal. it was very difficult for them to supthere was a complex machinery at work such as hepictured. Manchester Section. Meeting held at Manchester, on Friday, April 7ft, 11 MR. J. CARTER BELL IN THE CHAIB. A REGULATING VALVE FOR CONTROLLING £ADMISSION OF STEAM TO VITRIOL CHAMBi i BY W. H. OOLEMAN. Everyone who has had to control the working <of vitriol chambers will agree that the proper nof the steam supply is of the utmost importance. The average tower man, when questioned will firreply that he has put on or taken off just a breior a half or a quarter of a turn of the valve,answer l


. Journal. it was very difficult for them to supthere was a complex machinery at work such as hepictured. Manchester Section. Meeting held at Manchester, on Friday, April 7ft, 11 MR. J. CARTER BELL IN THE CHAIB. A REGULATING VALVE FOR CONTROLLING £ADMISSION OF STEAM TO VITRIOL CHAMBi i BY W. H. OOLEMAN. Everyone who has had to control the working <of vitriol chambers will agree that the proper nof the steam supply is of the utmost importance. The average tower man, when questioned will firreply that he has put on or taken off just a breior a half or a quarter of a turn of the valve,answer leaves some doubt in ones mind as t,.exactly has been done. In order to obviate this dby an attempt to gain a better method, and to try to oi ida means of knowing the history of the steam supply «chamber during some time previous to any has devised the valve shown, and he hopes tha nmatter is not too trifling to be worthy of your attentic The valve, which is of the ordinary screw-down pat o,. |B, 1906.] MANCHESTER SECTION. 483 toothed wheel formed on the spindle which engagesanother wheel of greater diameter working OD airt attached to the body of the valve. The faoe ofurger wheel has been divided and numbered. Whenalve is closed the pointer indicates the figure 0 onicale. and when fully opened it indicates for this•ular valve 16. ? Bteam, after being reduced to any suitable pressure>me type of reducing valve, is adjusted by means indicating valve, and one can tell at a glance how II is or slate is hung up by the side of the valve andiWel man writes down the time, steam pressure andiior figure every time that, he makes an alteration?team supply. In this way, the history of the steam• the few preceding hours is always at hand, the supply require alteration, it is easy to deter-how much or how little that alteration should be. ^ISPENDED MATTBR IN AND EFE LI oILBERT .OHN , , AND EDWARDARDERN, is becoming more an


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882