Modern moulding and pattern-making : a practical treatise upon pattern-shop and foundry work, embracing the moulding of pulleys, spur gears, worm gears, balance-wheels, stationary-engine and locomotive cylinders, globe valves, tool work, mining machinery, screw-propellers, pattern-shop machinery, and the latest improvements in English and American cupolas ... (1907)
Mullin, Joseph P · New York : D. Van Nostrand · leaf 40
centre of the hub. From the intersec- tion of n draw the line s, joining e and T. From the point at right angles with s, draw the line m, join d and w, cutting the circle n at the radius T. With the points d u for centres, draw the line which will rep- resent the centre line of the arm. From this… … Fig. 10. have extra heavy arms ; and under such circumstances the following table of dimensions, and the form of arm
Founding · Patternmaking
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
