US293545A - Fountain-pen - Google Patents

Fountain-pen Download PDF

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Publication number
US293545A
US293545A US293545DA US293545A US 293545 A US293545 A US 293545A US 293545D A US293545D A US 293545DA US 293545 A US293545 A US 293545A
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US
United States
Prior art keywords
pen
ink
fountain
groove
barrel
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Expired - Lifetime
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English (en)
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs

Definitions

  • the feed-piece which I elmploy for conveying the ink from the barrel A formed of rubber or other suitable material, having one extremity, c, tapering conically ⁇ from one side to the other of the body C.
  • My invention relates to that class of fountain-pens in which the nib of the ordinary writing-pen is supplied with iiuid ink from a ⁇ barrel or reservoir, ⁇ which may conveniently
  • the object of the invention is to secure andl automatically regulate a certain and uniform. flow of ink to the pen, and also to prevent the is :in use.
  • a fountain-pen composed of but comparatively few parts is produced, and the general construction of this class of pen greatlyimproved and simplied.
  • Figure -1 is a longitudinal section of my improved fountain-pen
  • A represents a barrel formed of rubber or other suitablematerial.
  • a tubular piece, B preferably of the same the correspondingly-threaded extremity a of tothe nib of the pen P consists of a bar, C,
  • Thedepth of this groove preferably gradually sures, e c, (sce Fig. 2,) longitudinally throughfacilitating the flow ofink to the pen, as hereinafter described.
  • the ⁇ pen l? which may be between the pieces B and-G, as shown in Fig. l, and a portion of the lower surface of the pen projecting from the tube B is in contact with the upper, and somewhat flattened surface of the' bar C. lf, now, the barrel A be partly filled with ink, and the parts assembled as in Fig.
  • 1,-the pen ⁇ will be ready for use, the ink being supplied to the nib in the following manner:
  • the downward flow of the inl; by gravity and through the action of capillary attraction in the act of writing causes it to'pass through the groove d, and tends to create a vacuum within the reservoir, which is met by the influx of air passing upward through the groove.
  • the direction of the .current of air entering the ink-reservoir be- It may be observed that the tendency to a heavy and excessive flow of ink, caused byv amplified motion ofthe pen or otherwise, will l be compensatedby an increased influx of air through the'groove d, to fill the vacuum tending to be produced within the reservoir, thus retarding the flow and automatically regulating the same.
  • airbubbles which usually form within and greatly impede the discharge of ink through the inlcduct, are i-n my invention pressed to one side of the duct, and their onward movement greatly accelerated by the outflowing current of ink.
  • the narrow slits or ssures e c which are made in the groove d, and which extend deeper into the feed-bar C than the bottom.
  • the grooved serve to facilitate the downward iiow of the ink which first follows these narrow channels, and thus the descending column of ink is kept on that side of the groove, Vthe ascending column of air keeping on the other side of the groove.
  • ⁇ A cap, E is employed for protecting the nib of the pen when not in use.
  • rllhe cap may roo ⁇ beplaced uponthe extremity of thc barrel position it serves to lengthen the holder.
  • inlcduct may be modified, and, instead of one groove being formed in its upper surface, several may be employed, and the number and size of the iissures in said Vgroove or grooves may be Varied, if desired.
  • longitudinal grooves formed in that portion of its surface which is in proximity to the pen, With. one or more longitudinal fissures in the side or sides of said groove or grooves, and a peu secured -between said tube and ink-duct.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US293545D Fountain-pen Expired - Lifetime US293545A (en)

Publications (1)

Publication Number Publication Date
US293545A true US293545A (en) 1884-02-12

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US293545D Expired - Lifetime US293545A (en) Fountain-pen

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US (1) US293545A (fr)

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