two slots are cut crossing each other at right angles. A lever B is provided with two blocks G and D, adapted respectively to slide in the slots. A lever F, which is fulcrumed at the center of the plate A, is connected by means of a lever O with the end of the lever B. A pencil may be fitted… … and flowers? J of a bicycle are mounted in a %-inch drop tee 1 DEVICE FOR DRAWING OVOIDS.
