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Henry Quistorp
Heinrich Spatz
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Publication of GB189730898ApublicationCriticalpatent/GB189730898A/en
30,898. Quistorp, H., and Spatz, H. Dec. 31. Moulding.-Moulding-sand for making cores is mixed with a proportion of ammoniacal neutral soap, or of resin or resinous acid so that it acquires a loose sandy consistency after casting and can be easily removed.
GB189730898D1897-12-311897-12-31An Improved Process of Producing Cores for Metal Castings of all kinds.
ExpiredGB189730898A
(en)