. American foundry practice . art. In looking at this casting the wonder to usis that the core did not give away at some point when beingcast, so as to let all tlie iron run out of the mould, and itwould most likely have done so had the core been builtwith halves and pieces ; but it so happened that it was builtAvith a new batch of whole bricks, and the joints beingbroken well when building saved the core from bursting the casting did not swell at the bottom and top, wasbecause of the 8-wall at the bottom, and at the top thepressure was not sufficient to squeeze the core in. IF showsthe
. American foundry practice . art. In looking at this casting the wonder to usis that the core did not give away at some point when beingcast, so as to let all tlie iron run out of the mould, and itwould most likely have done so had the core been builtwith halves and pieces ; but it so happened that it was builtAvith a new batch of whole bricks, and the joints beingbroken well when building saved the core from bursting the casting did not swell at the bottom and top, wasbecause of the 8-wall at the bottom, and at the top thepressure was not sufficient to squeeze the core in. IF showsthe way the casting would have looked had the core beencorrectly built by having all the joints Avell packed j and as BUILDING OR LAYING BRICKS FOR LOAM MOULDS. 171 this casting shown was an actual occurrence, I could notthink of anything better to show the results of improperbrick building, and to prove that in this, as in everything amoulder has to do in order to make a good casting, there isa right and a wrong way of e ?t-i?f;fi^h^t:%A^!D^.^r:Siitii^. 3ES p m a I I I I I ^Vii*^ii^t:iVi6t^9-i m cri -yyyyyy^^^^^.yyyy^.: ^.^W^yy^ ^^^^^^^^ H W^J>^yyyyyyyy^
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