page_title: Fountain pen
section_title: New patents and inventions
hierarchical_section_title: Fountain pen / History / New patents and inventions
caption_attribution_description: English: Parker Duofold Senior in black hard rubber, ca. 1924
context_page_description: A fountain pen is a nib pen that, unlike its predecessor, the dip pen, contains an internal reservoir of liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action. Filling the reservoir with ink may be achieved manually, via the use of an eyedropper or syringe, or via an internal filling mechanism which creates suction or a vacuum to transfer ink directly through the nib into the reservoir. Some pens employ removable reservoirs in the form of pre-filled ink cartridges.
context_section_description: In 1848, American inventor Azel Storrs Lyman patented a pen with "a combined holder and nib". From the 1850s, there was a steadily accelerating stream of fountain pen patents and pens in production. However, it was only after three key inventions were in place that the fountain pen became a widely popular writing instrument. Those were the iridium-tipped gold nib, hard rubber, and free-flowing ink.
  The first fountain pens making use of all these key ingredients appeared in the 1850s. In the 1870s Duncan MacKinnon, a Canadian living in New York City, and Alonzo T. Cross of Providence, Rhode Island, created stylographic pens with a hollow, tubular nib and a wire acting as a valve. Stylographic pens are now used mostly for drafting and technical drawing but were very popular in the decade beginning in 1875. In the 1880s the era of the mass-produced fountain pen finally began. The dominant American producers in this pioneer era were Waterman, of New York City, and Wirt, based in Bloomsburg, Pennsylvania. Waterman soon outstripped Wirt, along with many companies that sprang up to fill the new and growing fountain pen market. Waterman remained the market leader until the early 1920s.
  At this time, fountain pens were almost all filled by unscrewing a portion of the hollow barrel or holder and inserting the ink by means of an eyedropper – a slow and messy procedure. Pens also tended to leak inside their caps and at the joint where the barrel opened for filling. Now that the materials' problems had been overcome and the flow of ink while writing had been regulated, the next problems to be solved were the creation of a simple, convenient self-filler and the problem of leakage. In 1890, W. B. Purvis patented a self-filler. Self-fillers began to arrive around the turn of the century; the most successful of these was probably the Conklin crescent-filler, followed by A. A. Waterman's twist-filler. The tipping point, however, was the runaway success of Walter A. Sheaffer's lever-filler, introduced in 1912, paralleled by Parker's roughly contemporary button-filler.
caption: Parker Duofold, c. 1924
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