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Expired
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Dick Burks Williams
Joseph R Stauffer
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Individual
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Individual
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Publication of GB190427992ApublicationCriticalpatent/GB190427992A/en
27,992. Williams, D. B., and Stauffer, J. R. Dec. 21. Wheels, composition of.-In the manufacture of an abrasive, for example in the form of a grinding- wheel, crushed and graded " carboclay," prepared as described in Specification No. 27,991, A.D. 1904, or other abrasive material of the right grain is mixed with about half its amount of untreated clay, water is added, and the whole is moulded into the form of a wheel &c., which is then treated as described in the Specification cited above.
GB190427992D1904-12-211904-12-21Improvements in the Manufacture of Grinding Wheels and the like.
ExpiredGB190427992A
(en)