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Publication date
Application filed by Марина Федорівна МисниченкоfiledCriticalМарина Федорівна Мисниченко
Priority to UA2001128893ApriorityCriticalpatent/UA49530A/en
Publication of UA49530ApublicationCriticalpatent/UA49530A/en
Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments
(AREA)
Pens And Brushes
(AREA)
Knives
(AREA)
Abstract
The proposed astral compasses (a device for drawing astral lines) contain a movable bar fitted to a holder. In the holder, a needle is fixed that extends beyond the holder. The needle centerline coincides with the movable bar centerline. The astral compasses contain two drawing elements. As the drawing element, a needle, cutter, pencil, ball pen, or slate-pencil may be used. The drawing elements are positioned symmetrically relative to the movable bar centerline and are fixed to the bar with a lock plate and screws.