. Canadian foundryman (1918). FIG. 3—COPE PATTERN OF STEERING FORK. gate, sprue, crane, hoist, bail, etc., as and they should be absolutely inter-nearly perfect for the job in hand as changeable. Binding pins or loose fitting can possibly be done. FlasksThe matter of flasks is a vital one. FIG. 4—FLY WHEEL PATTERN. pins must not be tolerated. The flaskmust fit the machine without the slight-est movement and when rammed withsand, it must be lifted off without thepins binding or sticking in the slightestdegree. All flasks should be providedwith a sand strip or lip around thejoint edge. Flasks th
. Canadian foundryman (1918). FIG. 3—COPE PATTERN OF STEERING FORK. gate, sprue, crane, hoist, bail, etc., as and they should be absolutely inter-nearly perfect for the job in hand as changeable. Binding pins or loose fitting can possibly be done. FlasksThe matter of flasks is a vital one. FIG. 4—FLY WHEEL PATTERN. pins must not be tolerated. The flaskmust fit the machine without the slight-est movement and when rammed withsand, it must be lifted off without thepins binding or sticking in the slightestdegree. All flasks should be providedwith a sand strip or lip around thejoint edge. Flasks that require barsshould have careful study so that thebars may be so placed as to supportany body of sand that is nearly cut offand lacks support. If the flask is pro-perly barred, in nearly every case theuse of soldiers, gaggers, nails, etc.,will be unnecessary. The bars must fol-low the contour of the pattern andshould come to about one inch of thepattern and joint. If the bars cometoo close to the pattern it makes tuck-ing necessary to prevent soft spotsStripping plate machines are built for upon the flask depends largely the under the bars. The drag must be bar-with open end frames so the pattern success of the job. red as well as the cope. In making an can extend over the mach
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries
