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William Bain
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Individual
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Individual
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Publication of GB190320467ApublicationCriticalpatent/GB190320467A/en
20,467. Bain, W. Sept. 23. Skates.-In ball castors for furniture, sliding window sashes, roller skates, &c., the bearing-balls e are enclosed in the cup a between the castor ball band a plane surface of a plate h, which is screwed into a threaded portion c of the cup against a shoulder d. In the case of roller skates, the plate h is formed integral with the skate base, instead of being provided with an attachment socket f.