The American house-carpenter : a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs : together with the most important principles of practical geometry (1849)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 278
the joint can be obtained from only one side. Whe i the rail is canted up, the joint is taken from the mould laid on the upper side of the lower twist, and on the under side of the upper twist ; but when it is canted down, a course just the reverse of this is to be pursued. When the rail is not… … ing o j for semi-minor axis, and the distance on the rake corresponding to o g, on the pian, for the semi -major axis, found thus,— extend ij to meet a f, then from this point of meeting to / is the semi-major axis.
Carpentry · Architecture · Building
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
