. Canadian foundryman (1918). PIG. 1. DETAILS OF SWEEP AND CORE FOR FLANGE. FIG. 4. SHOWING METHOD USED IN RAMMING UP CORE criptim of the method used in makinga number of similar castings. Select a place under the swing of thecrane, dig a hole the required depth andplace the s!:ep C and spindle D., Fig. 1,in the center with the sweep boards at-tached. Sweep the bottom bed of thecasting and the bed for the cores the flange cores J to just clear thevertical board on the spindle and fill face just swept out and lift off the thick-ness of sand, using a segment to fix upthe outside edge. Wh
. Canadian foundryman (1918). PIG. 1. DETAILS OF SWEEP AND CORE FOR FLANGE. FIG. 4. SHOWING METHOD USED IN RAMMING UP CORE criptim of the method used in makinga number of similar castings. Select a place under the swing of thecrane, dig a hole the required depth andplace the s!:ep C and spindle D., Fig. 1,in the center with the sweep boards at-tached. Sweep the bottom bed of thecasting and the bed for the cores the flange cores J to just clear thevertical board on the spindle and fill face just swept out and lift off the thick-ness of sand, using a segment to fix upthe outside edge. When complete place the three boardsshown in Fig. 4 against the outside ofthe mould and ram up the core to theheight required. Draw two boards at atime leaving the third one in positionuntil the circle is completed; then takestrickle board H and strike off along the. FIG. 2. BOARDS CUT TO THE CURVE OF THE FLANGE. A and B, close up and in the space underneath the cores withwaste, paper or rope. Fill up with sandto whatever height is required to reachthe bottom of the curved flange andplace the boards A and B in the floor afoot clear each way of the casting. Strickle off as shown in Fig. 3 andmake a false parting on this bed. Thenraise boards A and B the required thick- curved boardscast. PATTERN MAKING NOTES By J. W. Broadbent WHEN turning patterns on the faceplate it is essential, in the majority ofcases, to use an intermediate face plate ????<~:±s9\. H Strickle Board •-••.^•
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries
