. Canadian foundryman (1918). f the cope and nowel were exactly thesame and in turning the cope over thegate would be reversed so as to connectwith the other two cylinders. In ram-ming them it was the custom to peenaround the outside and down the centrebetween the rows, care being taken tokeep well away from the patterns. Hadthese patterns been rammed up on aboard, the molder would undoubtedly havetucked the sand around them with hisfingers, and after rolling the nowel overhe would have rubbed the sand up to thepattern with the palm of his hand andtroweled it, and in cutting the gate
. Canadian foundryman (1918). f the cope and nowel were exactly thesame and in turning the cope over thegate would be reversed so as to connectwith the other two cylinders. In ram-ming them it was the custom to peenaround the outside and down the centrebetween the rows, care being taken tokeep well away from the patterns. Hadthese patterns been rammed up on aboard, the molder would undoubtedly havetucked the sand around them with hisfingers, and after rolling the nowel overhe would have rubbed the sand up to thepattern with the palm of his hand andtroweled it, and in cutting the gate witha gate cutter he would have finished itwith his finger or thumb and finallysponged it. With the molding machine thetucking and ramming must do it all, asthere is no chance to make any changesafter it is rolled over and unless it is There is nothing can beat the strippingplate for making nice castings and thesecylinders were perfect with the exceptionof the dirt which could have been avoidedby proper ramming. The manner of. MOLDING CYLINDERS ON STRIPPING PLATE ming. let us describe the molding of pumpcylinders on a stripping plate was once employed by a company whomanufactured a line of pumps, and whileI was not one of the machine operatorsI was working in the same room and couldsee what was doing, and would willinglyhave rendered aid if my good will hadbeen appreciated, which it wras not. Thecastings were dh-ty, right in front of thegate, and I have seen them with slots big properly done the part right up againstthe pattern will be so soft that it willwash from the iron running over it withthe results already described. In doingthis class of work on a machine it is notthe rule to do much finger tucking, butif the molder will hold his rammer on anangle so as to drive the peen right downinto the corner shown by arrows on thesketch, it will make it hard enough to holdits shape and it can do no harm.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries
