. American engineer . removed. The vertical feed used for theturning and boring operation is about 1/32 in., and lor the part-ing operation 1/64 in. This method of turning packing ringsmakes a good finished ring in a minimum amount-of time. ANGLE COCK GRINDING MACHINE. The important features of the angle cock grinding niacliine,shown in Figs. 8 and 9, are its simplicity of construction andoperation. The horizontal driving shaft F is belted direct to theIme shaft, a countershaft not being necessary. The vertical spin-dles A are driven by the friction disks B, which have a sliding fiton a sphned
. American engineer . removed. The vertical feed used for theturning and boring operation is about 1/32 in., and lor the part-ing operation 1/64 in. This method of turning packing ringsmakes a good finished ring in a minimum amount-of time. ANGLE COCK GRINDING MACHINE. The important features of the angle cock grinding niacliine,shown in Figs. 8 and 9, are its simplicity of construction andoperation. The horizontal driving shaft F is belted direct to theIme shaft, a countershaft not being necessary. The vertical spin-dles A are driven by the friction disks B, which have a sliding fiton a sphned shaft and mtatc with it. The vertical spindles arc March. 1912. AMERICAN EXGIXEER. 135 ilrivcii singly or together, ami arc operated by lifting the leverC, which, with a sliijlit nioveiiicnt. will engage with tliecatch D. This catcli may be adjiiste<l to suit the tension required be-tween the friction disk and the spindle pulley E by raising orlowering the catch in the slot of the breast plate. The valve. Fig. S—Angle Cock Grinding Machine. key or plug when screwed to the spindle stud G revolves withthe vertical spindle. The bod\- of the valve which rests on itskey and is prevented from turning by the pin H is raised ofif itsseat bv the lilting collar / once every fifth revolution of the ■%xdKPSfrip
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
