Canadian foundryman (1917) . er which the flangedbranch pattern was bedded in atthe correct height above the mainflange, and drawn outwards, theoutside face of the branch flangebeing covered by a cake core. Themould at this stage is shown incross section in Fig. 4. Sweeping the Core The sweep board was nextremoved, and the cheekmould hoisted on the stovecar. The core sweep wasthen bolted to the spindleand the core built on a light brick wall,with a circular perforated grating cover-ing the inside cavity one brick depth Cost Demands Change of MethodThe method just describedoccupied a moulder an
Canadian foundryman (1917) . er which the flangedbranch pattern was bedded in atthe correct height above the mainflange, and drawn outwards, theoutside face of the branch flangebeing covered by a cake core. Themould at this stage is shown incross section in Fig. 4. Sweeping the Core The sweep board was nextremoved, and the cheekmould hoisted on the stovecar. The core sweep wasthen bolted to the spindleand the core built on a light brick wall,with a circular perforated grating cover-ing the inside cavity one brick depth Cost Demands Change of MethodThe method just describedoccupied a moulder andhelper about 20 hours on or-dinary sizes, exclusive ofthe time spent on platesand other equipment, andwould have served indefinitely, hadnot competition rendered a heavy cur-tailment in cost of production impera-tive, the sys-tem of mould-ing after-wards e m-ployed beingas follows:—A pit ap-p r o x imately FIG. 5. CORE. 48 in. diameter by 34 in. deep, wasopened up in the foundry floor, the2 in. spindle-centre bedded a few. 0 A N A 1) I A N P OUNDRY M A N nuios below the pit face and ram-med hard to secure its rigidity, thespindle inserted, and the sweep Abolted to position as shown by Pig. runner core, B, was laid level so as
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Keywords: ., boo, bookcentury1900, bookdecade1910, bookidcanfoundryman1917toro
