Canadian foundryman (1917) . TRICKLE. to teed the easting- by the bottompour system, the runner stick C being-rammed up at the same time as the out-side face of the mould. The flanged or used in the former method, was nowlowered to position, lead spool ohaplets •J in. thick being use,I ;i| six points oncast iron blocks bedded in ms indicatedm the cross section view of the finished mould at fig. 10. The corewas finally hooked up to railsections laid across themould, this precaution beingnecessary on account of thecertainty of the lead chap-lets being melted by themetal during- the operationof p
Canadian foundryman (1917) . TRICKLE. to teed the easting- by the bottompour system, the runner stick C being-rammed up at the same time as the out-side face of the mould. The flanged or used in the former method, was nowlowered to position, lead spool ohaplets •J in. thick being use,I ;i| six points oncast iron blocks bedded in ms indicatedm the cross section view of the finished mould at fig. 10. The corewas finally hooked up to railsections laid across themould, this precaution beingnecessary on account of thecertainty of the lead chap-lets being melted by themetal during- the operationof pouring, with consequentdanger of the core rails referred to alsoacted as weight supports, allrisk of the core moving- be-ing- thereby eliminated. Economies EffectedBy this method the mould-ing time was reduced toI en hours, the time occupied inbuilding the core being- about fourhours, a saving- 0f six hours on eachpiece. The castings produced were free MELTING STEEL IN I HE IRON FOUNDRY CUPOLA by J. E. Hurst D. LOAM MOULD ASSEMBLED LOAM CORE FUR SAND MOULD open end of the saucer being cast up-ward in this instance, % in. extra thick-ness was allowed on the upper face toensure clean machining as well as to ov-ercome any unevenness on slight shrink-age which might occur on account of thepiece being cast open sand. A heavy, well bound facing- sand wasprepared, the mould being rubbed overwith dry plumbago and afterwards wash-ed with molasses before the application from strikes or fins and of asgood quality as those formerly turnedout of the expensive loam mould, withits initial cost in rigging.
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Keywords: ., boo, bookcentury1900, bookdecade1910, bookidcanfoundryman1917toro
