Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 53
1 ft.; ra-dius of outer curve ofof winders, 5 ft.; scale,J in. to the ft. (Fig. 48). Prob. 17.—Draw the plan of a flight of 6 steps, 4 flyers and 2 winders, making a quarter turn.Treads of flyers, 3 ft. X 10J in.; outer radius of winders, 5 ft. 6 in.; inner ra-dius, 18 in.; scale, i in. to thefoot.… … Fig. 48. Lee
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
