Oscillating drawing instrument - has slats suspended by ball-bearings from support for paper panel and pencil

摘要

The drawing instrument comprises a support, from which two slats (1) are suspended, each having a ball-bearing (7) accommodating a pivot pin. A panel (4) is fixed to one of the slats to accommodate the drawing paper, which is hooked onto it. The other slat has one or more orifices (10) for a pencil or other drawing instrument. - The drawing instrument is clipped in place. Bottom holes (3) in the slats accommodate weights, which can be adjusted for drawing.