Canadian machinery and metalworking (July-December 1917) . that the semi-flexible joints be used onpress platens to overcome ir-regularities in closing, and tocare for holes that are tap-ped out of line. A series ofthe joints in connection withordinary pipes and elbowswill give a maximum of flexi-bility. The Rostern Co. reports tests in which the joints were used with steam at 350 degs. alternating with water angular at 64 degs. Fah., the changes being made rapidly and with no unfavorable results. The joints are of bronze in sizes ranging from % to 2 in., with larger sizes in steel, iron
Canadian machinery and metalworking (July-December 1917) . that the semi-flexible joints be used onpress platens to overcome ir-regularities in closing, and tocare for holes that are tap-ped out of line. A series ofthe joints in connection withordinary pipes and elbowswill give a maximum of flexi-bility. The Rostern Co. reports tests in which the joints were used with steam at 350 degs. alternating with water angular at 64 degs. Fah., the changes being made rapidly and with no unfavorable results. The joints are of bronze in sizes ranging from % to 2 in., with larger sizes in steel, iron and special metals, and also with elbow ends. Reading makes a full man; writing anexact man; conference a ready man. July 12, 1917. CANADIAN MACHINERY 43 COAL FIRED SHELL NOSE FURNACE THE accompanying illustrations show animproved coal-fired furnace, specially de-signed for reheating shell noses, in usein several munition factories in Eng-land, and built from the designs of , 372 Fair mount-terrace, Thornley-lane, Reddish, Stackport. The special. fices to take the chill off the shell, andanneals the nose without overheating thus gradually heated up, theshells are transferred and placed hori-zontally in apertures, the nose penetrat-ing into a space between the two backwalls, which are marked Y and Z in thelongitudinal plan of the furnace, wherethey come in directcontact with theflames in their pas-sage from the fur-nace to the uptake orchimney. The tem-perature here reaches2,003 degs. Fah. Thedimensions of thefurnace are given,and practically self-explanatory. It maybe added that onesuch furnace is suffi-cient to keep two orthree presses goingconstantly. The fur-naces, of course, arebuilt to take any sizeof shell. COAL FIRED SHELL NOSE FURNACE. MINERAL PRO-DUCTION IN-CREASED 44 feature of the furnace is to obviate anypossibility of the flame coming in con-tact with the metal, as this tends to over-heat and crack it. To attain this end,the side walls of
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
