The little gold mine. Conklin's handy manual of the mechanical arts and house plans .. (1889)
Conklin, [George W.] [from old catalog] · Chicago, Laird & Lee · leaf 405
The quality of wood is determined by the number ofspirals. The best has about thirty crinkles in an inch. … 404 TO DESCRIBE A PATTERN FOR A TAPERINGSQUARE ARTICLE. Erect the Derpendicular line G E; draw the line A B at right angle to G E ; make E Fequal to the slantheight, and drawthe line C D par-allel to A B; makeAB equal inlength to one side^ of the base; makeC D equal inlength to one sideof the top…
Industrial arts · Workshop recipes · Architectural drawing
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