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Expired
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Walter Richard Williams
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Individual
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Individual
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Publication of GB191308707ApublicationCriticalpatent/GB191308707A/en
B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B33/00—Castors in general; Anti-clogging castors
B60B33/08—Ball castors
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Engineering & Computer Science
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Mechanical Engineering
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Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings
(AREA)
Abstract
8707. Williams, W. R. Oct. 2. Castors.-The casing a of a ball castor is formed of malleable iron with a spherical recess the rim h of which is turned over to retain the ball g. A socket b of circular or square cross-section, or an upper portion d with a protruding screw is formed integral with the casing a. The ball may be made of steel or hard wood.
GB191308707D1913-10-021913-10-02Improvements in Ball Castors.
ExpiredGB191308707A
(en)