cts above de- the movable arm. The small pulley below is connected times greater than and equal in number to the longi- scribed are produced on a scale sufficiently extended to tudinal divisions of the parallelogram. From a point at with the small pulley above by a crossed belt, and the be seen by… … the four revolutions in one shown in Fig. 11. These direction of the disk carry- forms may be greatly mod- ing the design and the single revolution of the circle of the set thus drawn, draw lines intersecting the itied by moving the slotted disk in the lantern across disk with radialjslots in…
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