. Canadian machinery and metalworking (January-June 1919). // any advertisement interests you, tear it otit now and place with letters to be answered. 2i C \ NADIAN MACHINERY Volume XX. 6-A Potter & Johnston Automatic Chucking and Turning Machine 6-A Potter & JohnstonAutomatic Chuckingand Turning Machine Geared head, havingthree automatic changesof spindle reaming andthreading slide. Automatic back facerbar through convertible twoand three-jaw scrollchuck. Spindle 5% inches dia-meter, hole 3x/2 inchesdiameter. Increased output mean
. Canadian machinery and metalworking (January-June 1919). // any advertisement interests you, tear it otit now and place with letters to be answered. 2i C \ NADIAN MACHINERY Volume XX. 6-A Potter & Johnston Automatic Chucking and Turning Machine 6-A Potter & JohnstonAutomatic Chuckingand Turning Machine Geared head, havingthree automatic changesof spindle reaming andthreading slide. Automatic back facerbar through convertible twoand three-jaw scrollchuck. Spindle 5% inches dia-meter, hole 3x/2 inchesdiameter. Increased output means reduced costboth are readily obtained on Potter & Johnston Manufacturing Automatic DO IT AUTOMATICALLY All operations are entirely automatic. Oneattendant can readily run a battery of two tosix machines. In addition to automatically machining allvarieties of castings from iron, bronze or steel,also forgings, the machines are also recom-mended and are widely used for finishing piecesfrom bar starch which have previously been cutoff to length. This is a highly economical methodof producing gear blanks, bushings, studs, etc. Catalog gives full particulars. Drop a card for it
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
