Abstract
A DETAIL in the “hole, slot and plane” geometrical constraint (which is one of the commonest forms of the “six point support” mentioned in Sir George Greenhill's letter in NATURE of September 27) seems often to be described and constructed wrongly. In this constraint, one contact occurs between a rounded projection on one body and an approximately “plane” part of the second body; two contacts occur between a rounded projection and the sides of a groove or “slot”; and the remaining three contacts should therefore be arranged to occur at the “hole.”
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BOND, W. The “Hole, Slot and Plane” Geometrical Constraint. Nature 114, 502 (1924). https://doi.org/10.1038/114502b0
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DOI: https://doi.org/10.1038/114502b0
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