A scrap-book of elementary mathematics; notes, recreations, essays (1908)
White, William Frank, 1871- · Chicago, The Open Court Pub. Co · leaf 146
LINKAGES AND STRAIGHT-LINE MOTION. 137 sider a single link (Fig. 21) pivoted at one end and carrying a pencil at the other. The pencil describes a circumference. If two links (Fig. 22) be hinged at H, and point F fastened to the plane, point P is v^ "Jf Fig. 23. … Fig. 26. Fig. 25. free to move in any direction; its path is indetermin- ate. The number of links must be odd to give de- terminate motion. If a system of three links be
Mathematical recreations
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
