. Foundry practice; a treatise on molding and casting in their various details. ired casting and having thebrackets loose. The drag is rammed in the customarymanner. Facing is used all over the pattern when thelength and thickness of metal will allow without cold-shotting the end away from the gate. The ramming mustbe even throughout its length, and is best made muchharder than on smaller castings. The parting is madeand the other half of the pattern is placed in should be put on, the same as in the drag. Itshould be tucked beside the pattern to allow the gaggersto be placed ne
. Foundry practice; a treatise on molding and casting in their various details. ired casting and having thebrackets loose. The drag is rammed in the customarymanner. Facing is used all over the pattern when thelength and thickness of metal will allow without cold-shotting the end away from the gate. The ramming mustbe even throughout its length, and is best made muchharder than on smaller castings. The parting is madeand the other half of the pattern is placed in should be put on, the same as in the drag. Itshould be tucked beside the pattern to allow the gaggersto be placed near the pattern. The cope is then placedon and an upset placed over the brackets to give sufficientdepth of sand above the pattern. The gaggers are set inthe cope. They should be long enough to reach nearly tothe top of the flask and have a heel about 6 in. long. Thegaggers will be most effective when placed in the divisionhaving the heel extending parallel to the pattern and asclose as possible to the pattern. When pointed toward GREEN SAND MOLDING 45 \Cb (O) A1 o- ----- -o-. r __ >
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