US2053892A - Fountain pen and the ink supply therefor - Google Patents

Description

. Sept. 8, 1936.

c. w. BECK FOUNTAIN PEN AND THE INK SUPPLY THEREFOR Filed July 22, 1935 INVENTOR ATTORN EY Patented 8, 1 936 UNITED STATES PATENT OFFICE romam m gr gggg smnr I Gharlee w. Beck, T010110, Ohio Application Ill! 22, 1935, Serial No. 82,514

a (Cl. 120-42) This invention relates to fountain pens and particularly to the manner of renewing the supply of ink and to the feeding of the ink.

I provide a glass vial filled with ink, which vial has a specially constructed rubber closure which is normally closed, but when assembled with the pen feeds the ink through the closure.

'Fig. l is an enlarged longitudinal cross section of the complete fountain pen, minus the cap, (not shown) with the ink vial in place in the barrel of the pen, with the ink supply in communication with the section of the pen for use: also showing the adjustable feed for regulating the flow of ink to the nib.

16 Fig. 2 is an enlarged cross section of the con-' nection for the flow of ink from the vial to the section.

Fig. 3 is an enlarged view of the complete ink vial, showing the rubber closure at the upper end my in cross section.

Fig. 4 is a cross section of the ink vial shown in Fig. 3 along lines 44.

Fig. 5 is an enlarged view of the fountain pen section, which section carries the ink feed and 5 nib on the outer end. This view also illustrates the bore through the section for the flow of ink and the opening at its lower extremity for the insertion of the connection illustrated in Fig. 2.

Fig. 6 is an enlarged modified view of the ink 30 feed with adjusting screw, shown in longitudinal cross section.

Fig. 7 is a cross section of the penbarrel assembly along lines 1i. V

Fig. 8 is a longitudinal cross section of the rub- 5 ber closure for the ink vial and immediately above it is shown a plan view of the closure.

Referring to the drawing, I Fig. 1 represents the barrel of the pen which is'provided with an ink vial 2, which latter is provided with a soft 0 rubber closure 2i and which is shown assembled with the vial in Fig. 8.

The barrel i is threaded at its upper end, both inside and outside for purposes of assembly with the section 3 and a cap which protects the nib..

45 Section 3, is threaded at its lower end as shown at H, for the purpose of assembly with the barrel i. Section 3 supports a stainless steel connection 5, Fig. 2 which latter is constructed'with tube 4 and channel 8 to conduct the flow of ink 50 into space l3'and II of the section. Section 3 is constructed with a round bore at its upper end to receive the feed I and nib 6. Knurled end I! is for convenience in assemblying section 3 with barrel.

to Connection 5, Fig. 2 is machined to make a friction fit into the opening 'll of section 3; the tube 4 is of a lengthso that when section 3 is assembled with barrel I, it will pass through the the ink in the vial, and, when section 3 is assembled with the barrel with the vial in place in it, the tube 4 of connection 5 presses against the wall with slit 2| and as it is screwed into place, the tube 4 separates the edges of the slit and is forced through the slit 2| of closure 2i to the inner side of it, as illustrated in the assembly Fig. 1 and the ink is then permitted to flow into the section.

In Fig. 6, 1 represents a conventional ink feed in which 1' is a screw, I a tapered part, 1 an ink channel and I another ink channel and i8 is a as soft rubber tube.

The ink vial 2 is preferably made of glass with the shoulders of. the soft rubber closure 2| flush with the outside diameter of the vial.

The space 9 between the ink vial 2 and the barrel I, Fig. 1, is to avoid rapid changes in temperature which affect the flow of ink due to em pension and contraction. A seal is made between section 3 and closure 2! and a seal is also made by tube 4 of connection 5 when forced through slit 2| in the lower wall of the rubber closure and no ink will flow except through the channel 8 into the spaces i3 and I5 of the section to the nib. It will be noted that the walls of part 2i, soft rubber closure, are substantially uniform in thickness on the outside walls and the bottom, see Fig. 8 .of the drawing. This is for the purpose of providing a reliable and automatic closure of the slit 2| when the connection 5 with tube 4 which are supported by section 8, is withdrawn from the slit in the closure. The closure is molded into the shape illustrated in Fig. 8 and the slit 2| is cut after'molding and vulcanizing, the elasticity inherent to a soft rubber molded part with a thick wall and supported by the vial, is such, that when tube 4 is withdrawn from slit ii the slit is instantly closed by the edges of the slit assuming its original molded position. The seals above referred to prevent the ink from messingof the outside of the glass vial'so that if it has to be handled when replacing it, the hands will not be soiled. My purpose is to make the vial 2 and closure II when assembled with the supply of ink, flt loosely into the barrel i so that when the pen ls empty the section may be unscrewed and the barrel inverted so thatthe empty vial will fall out of the ba rel and a lull vial may be inserted without handling the empty one.

Ink vial 2 with ink therein and closure in place may also be assembled with the assembled section carrying part 5, before assembly of the section with the barrel, by pressing tube 4 into the slit M of the closure 2|, after which the pressure of the rubber wall on tube 4 will hold the vial and section together for assembly with barrel l.

I claim:

1. A fountain pen comprising an ink supply, a section for assembly with the barrel, said section being provided with ink feeding means and a nib, a vial for the ink supply for assembly with the barrel and section, said vial being provided with a soft rubber closure having a slit, and means on the inner end of said section comprisaoaaeoa ing a tube slightly smaller in outside diameter than the length of the slit, for insertion into said slit of the closure, whereby the soit rubber closure is compressed to grip said tube to prevent leakage when the section and vial are assembled with the barrel.

2. A fountain pen comprising a barrel with a cavity to hold a vial for the ink, a section with assembly means on its inner end for connection to said. barrel, said section being provided at its outer end with a nib and a feed plug with in channels, said section also supporting a tube at its inner end for the flow of ink through said tube and said vial being provided with a resilient rubber closure having a slit for sealing the ink in the vial before assembly with the section, said slit being slightly larger than the outside diameter of said tube, whereby when said tube and vial are joined by the forcing of the tube into the slit of the closure on the vial, the closure is compressed and the tube sealed against leakage when the section, vial and barrel are assembled.

CHARLES W. BECK.

Images