A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 401
S. B. A wedge, or a tapering piece or member,used singly, or in pairs, as a means of drawingtwo parts together and tightly securing them■when it is forced into an aperture prepared forthe purpose; or as a means of holiling twomembers or surfaces apart; hence, a memberfor a similar piupose, whether… … securing together a number of boards edge toedge; and will be itself formed of a taperingboard forced into a corresponding groove cutacross the assembled Iwards; the cross sectionof such a key and its corresponding groove hasusually a dovetail shape, flaring inward, forgreater security. A common…
Architecture
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