. Mechanical Contracting & Plumbing January-December 1909. it the sand to flow in a steadyshower and fall upon the cast-iron ar-bor. These arbors are first wetted andthen rotated by a suitable crank, thearbor being supported in chilled bear-ings and the sand struck off to formthe core by a straight-edge as sand in falling packs sufficiently sothat the cores are made very soon as the cores are made they arelifted out and placed on horses readyto be set in the molds as they are re-quired. With the foundry running toits full capacity in turning out a car-load of soil
. Mechanical Contracting & Plumbing January-December 1909. it the sand to flow in a steadyshower and fall upon the cast-iron ar-bor. These arbors are first wetted andthen rotated by a suitable crank, thearbor being supported in chilled bear-ings and the sand struck off to formthe core by a straight-edge as sand in falling packs sufficiently sothat the cores are made very soon as the cores are made they arelifted out and placed on horses readyto be set in the molds as they are re-quired. With the foundry running toits full capacity in turning out a car-load of soil pipe a day it is necessaryto operate both sides of the core ma-chine, which keeps four men busy. The core sand is kept separate whenthe castings are shaken out and bymixing a little new sand with the oldit is again used, the only sand ordin-arily discarded being that which passesout with the work as it goes to thetumbling barrels. Molding Machines. The molding sand is used over andover, new sand being added to keep thepile up to strength. The molding ma-. Fig. 1—General View of Anthes, Limit ed, Pipe Foundry. October 15, 1909 PLUMBER AND STEAMFITTER chines are arranged to slide along thefloor upon railroad iron guides whichare permanently set into the floor each For all but the largest sizes of work,the foundry is equipped with carefullymade iron flasks for use in connection
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