GB398071A - Improved apparatus for casting radiators - Google Patents

Abstract

398,071. Moulding processes. GURNEY, E. H., 347, Walmer Road, Toronto, Canada. Dec. 17, 1932, No. 35875. Convention date, Aug. 15. [Class 83 (i).] Moulds; cores; clamping moulds.-A mould for casting a radiator comprises a series of " dry sand slabs G .. J, made like cores and clamped in a holder 79, a " dry sand " core L and if desired a cover K. Each slab G has a groove 12 to form a gate and the other slabs have holes 21 and grooves 22 to form runners leading to recesses 30, 46 to form end walls A, Fig. 31, and fins E of the radiator. Each slab I has also a notch 23, Fig. 9, for the enlarged end 64 of the core L to form the header C and slots 37 to form the side walls B. Each slab J has a notch 39, Fig. 10, for the central part of the core and slots 51 to form the side walls B. The core and cover have vents 62. The ends of the core have upper and lower projections to engage the slabs I and the cover and thus form openings 2, 3, Fig. 33, in the casting for piped connections. The central portion of the core is supported by chaplets. In a modification the gate is formed in the cover instead of in the end slabs and in another modification the slabs are formed to produce a radiator in which the enlarged ends 105, Fig. 35, of the fluid passage are connected by two channels 106. In another modification the core has only one end enlarged and is introduced axially into central slots formed in the slabs I, J before the slab H at the enlarged end is placed in position.