The Fountain Pen Patent Archive

The instruments that put ink under pressure

1849 patent

Patent drawing of a 19th-century fountain pen showing a full perspective view with nib and cap (Fig. 1), a longitudinal cross-section revealing an internal conical valve and wire (Fig. 2), and small end-on views of the threaded cap and feed mechanism (Figs. 3-5).IMPROVEMENT IN FOUNTAIN-PENS.David O. Macomber · August 28, 1849