Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 178
ectural draftsmenuse pencils of a much softer grade than those used by machinedraftsmen, it is better for the student while learning to continuethe use of the harder grades as required in mechanicaldrawing. The following objects which have been selected for problemsin architectural drawing in… … 164 MECHANICAL DRAWING. FRAMING JOINTS. In elementary building construction, carpenters joints occupyan important place. The joints are divided into various formsof notches, tenons, and mortises and combinations of the same. A Single Notch is a hollow cut in a board or scantling intowhich another…