. Marine Engineer . ep them inposition. Where, as in this case, the flanges are so closetogether as almost to touch, it i- better to join them lor thenarrow ridge of sand would otherwise be broken away bjthe flow of metal and form as dirt in the casting. The body of the core being symmetrical, is made in aone-half box and the cores for the brani hes fixed on separately,tin dividing ribs in the chest appear as wood partitions inthe box, with bosses screwed on at D for the valve si <<and having print- which leave impressions in the main corein which the circular cores for the seat ar
. Marine Engineer . ep them inposition. Where, as in this case, the flanges are so closetogether as almost to touch, it i- better to join them lor thenarrow ridge of sand would otherwise be broken away bjthe flow of metal and form as dirt in the casting. The body of the core being symmetrical, is made in aone-half box and the cores for the brani hes fixed on separately,tin dividing ribs in the chest appear as wood partitions inthe box, with bosses screwed on at D for the valve si <<and having print- which leave impressions in the main corein which the circular cores for the seat are fitted. With this form of chest the pattern can be bedded downin the floor to the parting B, an open box being used lor thepart between B and C. and either another box as a cope forthe flanges A or merely a loam cake in order to mould asimilar chest having branches on each side two drawbackswould be required, with tin mould vertical in as Fit;, i. andtwo partings along the centre lines ol the side and 1i A 1 1 Li 1 I ! i i X —i—I n
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondon, bookyear190
