can tal shaft, which is rotated by means of a crank and bevel sembles many of the penlio!(]er= or pencils now gearing. ordinary writing or i not be done by pounding it with rough or serrated ham- Tiic handle is a tube whicii holds Mr. Angus McKellar, of Fort Douglas, Utah Ter., has is conical and… … the radial grooves in the writing materials. THE MACKINNON PEN OR FLUID PENCIL. plate. A, but any tendency This pen has several advan- to clog is prevented by a tages over its competitors, series of spiral grooves in the cap, shown in detail at B. incisions with a sharp instrument, which will sever…
