US2627844A - Fountain pen for viscous ink - Google Patents

Fountain pen for viscous ink Download PDF

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Publication number
US2627844A
US2627844A US40027A US4002748A US2627844A US 2627844 A US2627844 A US 2627844A US 40027 A US40027 A US 40027A US 4002748 A US4002748 A US 4002748A US 2627844 A US2627844 A US 2627844A
Authority
US
United States
Prior art keywords
ink
pen
tube
barrel
weight member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US40027A
Other languages
English (en)
Inventor
Reynold B Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL77447D priority Critical patent/NL77447C/xx
Priority to BE490129D priority patent/BE490129A/xx
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US40027A priority patent/US2627844A/en
Priority to GB12801/49A priority patent/GB684094A/en
Priority to CH278969D priority patent/CH278969A/fr
Priority to FR1031559D priority patent/FR1031559A/fr
Priority to DEI6240A priority patent/DE915310C/de
Priority to DEI2865A priority patent/DE911711C/de
Application granted granted Critical
Publication of US2627844A publication Critical patent/US2627844A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens
    • B43K23/122—Protecting means, e.g. caps for pens with means for preventing choking
    • B43K23/124—Protecting means, e.g. caps for pens with means for preventing choking comprising an air passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens
    • B43K23/126—Protecting means, e.g. caps for pens with clips
    • 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
    • B43K5/1818—Mechanical feeding means, e.g. valves; Pumps
    • B43K5/1827—Valves
    • B43K5/1836—Valves automatically closing
    • B43K5/1845—Valves automatically closing opened by actuation of the writing point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/003—Pen barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/14—Pens with writing-points other than nibs or balls with coreless tubular writing-points
    • B43K8/143—Arrangements for feeding the ink to the writing-points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/16—Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element

Definitions

  • This invention relates to fountain pens and more particularly to fountain pens which can be. used with ink which contains a higher proportion of solids than ordinary writing ink, for example, drafting ink or the ink used for making conductive marks on so-called mark sensing records for record controlled machines.
  • Another difficulty encountered is the effect of must be made to contain such ink and, preferably, to return it to the body of ink which is to flow through the nib in writing.
  • I t is accordingly an object of the invention to provide a pen which will not become clogged, even though used with ink which contains a much higher percentage of solids than ordinary writing ink.
  • a further object is to provide means to catch and hold ink which overflows, due to atmospheric pressure and temperature fluctuations, in such a way that the rate of evaporation and incrustation of such overflow ink will not be substantially increased.
  • Still another object is to provide a pen capable of writing with relatively viscous ink, which will make a mark on the first stroke of the pen after a period of long disuse.
  • Fig. 1 is an elevational view of the preferred embodiment of the invention, the cap being shown in section.
  • Fig. 2 is an enlarged longitudinal sectional view of the nib end of the pen shown in Fig. 1.
  • Fig. 3 is a cross-section on the line 33 of Fig. 1.
  • Fig. 4 is a cross-section on the line 44 of Fig. 2.
  • Fig. .5 is a cross-section on the line 55 of Fig. 2.
  • One form of air inlet means is shown in the preferred embodiment of the pen illustrated in Figs. 1-5.
  • the air inlet means includes a large air chamber I3I which traps anyoverflowing ink.
  • the air and ink can move about freely in this large chamber as the pen changes position, in accordance with their specific gravities, but for reasons to be described the overflow ink will be returned to the ink space of the pen during writing, before any air can enter the ink space.
  • the pen illustrated in Figs. 1-5 comprises a barrel portion I 35 which screws onto a pen holder portion I31 by means of threads I39.
  • a plug I4I which is clamped between the barrel I35 and the pen holder I31 by its flange tuting, in effect, an extension of the tube, except that its sides extend straight toward the air chamber I3I as shown in Fig. 5, to define an opening I59 through which the air space communicates with the ink space.
  • a small capillary tube I5I which serves as the mb of the pen.
  • the nib Il of the pen has a wire I55 extending through it with a loose fit and normally projecting a short distance beyond the end of the tube.
  • the wire is loosely held in one of the four pockets of a weight member I5! having a shaft of crossshaped cross-section, as shown in Figs. 4 and 5.
  • the shaft of the weight member is notched at I59 to allow the wire to curve into alignment with the axis of the tube I5I.
  • the upper end of the cross-shaped shaft is fitted tightly into a socket I60 of a weighting portion I6I of the weight member.
  • the bent-over end I62 of wire I55 is loosely confined in the socket I60 by the shaft I51.
  • the weighting portion I6I is grooved to provide shoulders I63, I64 and I66.
  • the weight member When the pen is held in a position which makes the weighting end IGI tilt toward the right in Fig. 2, as permitted by the loose fit of the shaft of the weight member in the tube I46, the weight member has only a limited movement determinedby the space between the shoulders I63 and I64 on the weight member and the ends of the screw head I 65. This prevents the weight member, and the wire attached thereto, from having an excessive movement during normal writing operations which might tend to pump ink out of the tube I5I and cause blotting.
  • the pen can be held in a position so that the weight member ISI will tilt toward the left in Fig. 2, which will move the shoulder I64 clear of the screw head I65 and allow the weight member and the wire attached thereto to have the relatively longer movement determined by the space between the shoulders I63 and I66 on the weight member and the ends of the screw head I65.
  • Air is admitted to the overflow and air inlet chamber I 3
  • This tube is disposed as shown in Fig. 2 in order to provide a section of the air inlet passageway having a length several times greater than its diameter.
  • the disposition of the tube III as shown places its inner end at the volumetric mid-point of the air chamber I3I. Thereby, if ink should overflow into the air chamber until it nearly reaches the inner end of the tube In, with the pen in the position shown in Fig. 2, if the pen is turned to any other position the level of the ink will still be just below the inner end of the tube Ill.
  • the portion of the air inlet'passageway in the tube III is thus protected against the entrance of ink from the inside of the pen, which would otherwise have the effect of sealing off the air inlet means, because of the very small size of the bore of the tube I'II.
  • ink is drawn out of the nib in writing the overflow ink in the air chamber all flows back through the opening I53 into the ink space before any air can enter the ink space.
  • the returning overflow ink reenters the ink space near the inner end of the nib I5I and passes out through the nib before ink from the reservoir I45. In this way the overflow ink, which has been exposed to more drying conditions than the ink in the reservoir, is the first ink to be used.
  • the dimensions of the air chamber I3I can be such as to take care of the overflow which would be caused by any possible changes in pressure relations.
  • the weight member I51, I6I is free to turn on its long axis, but in any position there will be at least one vertical channel on the back side' of the shaft I51 for the ink for flow down to the nib without interference by air bubbles entering the opening I50.
  • the shaft I51 reaches down below the opening I50 to prevent air bubbles from getting behind it, requiring them to rise in one or another of the vertical channels on the front side of the shaft.
  • the flow of ink to the aperture I53 is further insured by grooves I10 in the conical bottom of the socket I49.
  • the pen has a cap I13, as shown in Fig. 1, which fits over the end of the pen and nearly closes the outer end of the air inlet duct III
  • the cap has a rubber stopper I15 mounted by a pivot IT! in a socket I79 of a nut I8I which screws into the end of the cap. This construction permits the cap to be turned in relation to the pen in applying or removing it, without damage to the pen.
  • the nut also serves to hold a clip I83 to the pen cap.
  • the cap has a ventilating hole I85.
  • the nib isshown with a slanted end, but the end may be square across, or may have even a greater slant than shown.
  • the slanting end improves the contact of the ink with the paper and makes a somewhat broader mark than a square ended tube. It has advantages for marking record cards of the mark sensing type, because it gives greater assurance of producing a good mark at'the first stroke of the pen.
  • a barrel a writing tube extending through one end of said barrel, awi're extending through the'bore of said tube aweight member attached to said wire, means 'gu-idixig said weight member for movement longitudinally of the pen, said weight member having grooved portions which form a plurality of longitudinally spaced shoulders on one side of the weight member and means mounted in said barrel for selectively engaging said shoulders to limit the stroke of said longitudinal movement to a short or a long stroke, said last named means being longitudinally spaced at different distances from said shoulders.
  • a fountain pen a barrel, a writing tube extending through one end of said barrel, a wire extending through the bore of said tube, a weight member attached to said wire, tubular means to guide said weight member for movement longitudinally of the pen, said weight member being loosely mounted in said tubular means and having grooved portions which form a plurality of longitudinally spaced shoulders on one side of the weight member, the loose mounting of the weight member permitting it to rock transversely of the long axis of the pen in response to tilting of the pen in difierent directions, and means mounted in said barrel for selectively engaging said shoulders to limit the stroke of said longitudinal movement to a short or a long stroke, said last named means being longitudinally spaced at different distances from said shoulders, whereby tilting of the pen permits one shoulder to pass the means mounted in the barrel to allow the longer stroke to occur.
  • a fountain pen a barrel, a writing element at the end of said barrel, means subdividing said barrel transversely to form an air chamber at the end of said barrel which is lower when the pen is in writing position, and an ink reservoir at the upper end of said barrel, means venting said air chamber to the atmosphere and an ink channel having an opening into said air chamber at the lowest point of the latter when th pen is in writing position, said ink channel comprising a plurality of separate longitudinal passageways formed by a partition means, at least one of which is in a position to become efiective to conduct ink from said reservoir past said air chamber to said writing element, said partition means extending below the top of said opening and being effective to shield the ink conducting passageway from air bubbles entering said opening by directing said air bubbles into any of the remaining passageways, whereby the air bubbles are ineffective to stop the flow of ink through the ink conducting passageway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US40027A 1948-07-22 1948-07-22 Fountain pen for viscous ink Expired - Lifetime US2627844A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL77447D NL77447C (es) 1948-07-22
BE490129D BE490129A (es) 1948-07-22
US40027A US2627844A (en) 1948-07-22 1948-07-22 Fountain pen for viscous ink
GB12801/49A GB684094A (en) 1948-07-22 1949-05-13 Improvements in or relating to fountain pens
CH278969D CH278969A (fr) 1948-07-22 1949-07-12 Stylographe.
FR1031559D FR1031559A (fr) 1948-07-22 1949-07-21 Stylographe
DEI6240A DE915310C (de) 1948-07-22 1950-09-30 Fuellhalter mit Schreibrohr und einem durch das Schreibrohr ragenden Draht
DEI2865A DE911711C (de) 1948-07-22 1950-09-30 Fuellhalter mit Schreibrohr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40027A US2627844A (en) 1948-07-22 1948-07-22 Fountain pen for viscous ink

Publications (1)

Publication Number Publication Date
US2627844A true US2627844A (en) 1953-02-10

Family

ID=21908683

Family Applications (1)

Application Number Title Priority Date Filing Date
US40027A Expired - Lifetime US2627844A (en) 1948-07-22 1948-07-22 Fountain pen for viscous ink

Country Status (7)

Country Link
US (1) US2627844A (es)
BE (1) BE490129A (es)
CH (1) CH278969A (es)
DE (2) DE915310C (es)
FR (1) FR1031559A (es)
GB (1) GB684094A (es)
NL (1) NL77447C (es)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874679A (en) * 1952-04-10 1959-02-24 Nahum A Bernstein Fountain pen construction
US3039436A (en) * 1956-09-19 1962-06-19 Exner Hellmuth Alfred Artur Fountain pen with retractable writing element
US3481675A (en) * 1968-01-22 1969-12-02 Seymour Greenberg Pen
FR2196914A1 (es) * 1972-07-21 1974-03-22 Rotring Werke Riepe Kg
US3900268A (en) * 1972-09-18 1975-08-19 Edward Bok Pen with ink injection system
US3905709A (en) * 1973-02-19 1975-09-16 Edward Bok Pen with injection system
US3977798A (en) * 1973-12-22 1976-08-31 Koh-I-Noor Rapidograph, Inc. Tubular writing pen
US4019243A (en) * 1974-12-20 1977-04-26 Koh-I-Noor Rapidograph, Inc. Method for forming a tubular writing pen
JPS5892084U (ja) * 1981-12-14 1983-06-22 三菱鉛筆株式会社 インキ直接貯溜式筆記具のキヤツプ
FR2641735A1 (en) * 1989-06-15 1990-07-20 Mitsubishi Pencil Co Removble cap for writing implement
USD667052S1 (en) * 2009-05-29 2012-09-11 Renart Limited Marker pen
USD667053S1 (en) * 2009-05-29 2012-09-11 Renart Limited Marker pen
CN112918156A (zh) * 2021-03-24 2021-06-08 深圳市一方玉贸易有限公司 一种带有防洒墨功能的自动浸润笔头的钢笔

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2762337A (en) * 1952-12-04 1956-09-11 Parker Pen Co Writing instruments
US3832752A (en) * 1973-03-21 1974-09-03 G Prochnow Pen point cleaner

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US225401A (en) * 1880-03-09 Chaeles w
US229980A (en) * 1880-07-13 Chaelbs h
US233616A (en) * 1880-10-26 Stylographic fountain-pen
US421069A (en) * 1890-02-11 evans
US1352340A (en) * 1920-09-07 Writing implement
US1379603A (en) * 1920-06-26 1921-05-31 Gordon Pen Company Stylographic pen
GB474893A (en) * 1937-05-05 1937-11-09 Mabie Todd & Company Ltd Improvements in or relating to stylographic pens
US2176568A (en) * 1937-02-10 1939-10-17 Freeman Samuel Fountain pen
US2217502A (en) * 1940-04-04 1940-10-08 Wallace Joseph Stylorgraphic pen
US2303373A (en) * 1941-11-03 1942-12-01 Sheaffer W A Pen Co Fountain pen
US2396771A (en) * 1944-08-03 1946-03-19 Sr Dara H Brinson Fountain pen
US2405381A (en) * 1943-04-26 1946-08-06 Eterpen Sa Financiera Writing instrument
US2472343A (en) * 1946-03-19 1949-06-07 Anthony G Rosa Fountain pen
US2509234A (en) * 1945-12-28 1950-05-30 Kahn David Inc Fountain pen cap
US2512004A (en) * 1945-03-05 1950-06-20 Russell T Wing Fountain pen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH100722A (fr) * 1921-03-05 1923-08-16 Jean Baptiste Paul Jacques Sal Porte-plume à réservoir.
DE582621C (de) * 1930-07-31 1933-08-18 Joseph Wallace Fuellfederhalter mit nadelartiger, kolbenbeschwerter Spitze
DE611087C (de) * 1932-11-18 1935-03-21 Otto Kind Fuellfederhalterartige Schreibvorrichtung
CH182432A (de) * 1935-06-04 1936-02-15 Dimmler Fritz Füllfederhalter.
DE685886C (de) * 1936-09-02 1939-12-27 Friedrich Wilhelm Haack Fuellfederhalter mit einem gerillten, im Halterkopf verschiebbar gelagerten Schreibstift
DE738888C (de) * 1940-03-12 1943-09-04 Guenther Wagner Fa Fuellfederhalter mit Schreibrohr
GB573747A (en) * 1944-02-22 1945-12-04 Laszlo Jozsef Biro Writing instrument
CH245098A (fr) * 1944-03-17 1946-10-31 Martin Henry George Stylographe.

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US229980A (en) * 1880-07-13 Chaelbs h
US233616A (en) * 1880-10-26 Stylographic fountain-pen
US421069A (en) * 1890-02-11 evans
US1352340A (en) * 1920-09-07 Writing implement
US225401A (en) * 1880-03-09 Chaeles w
US1379603A (en) * 1920-06-26 1921-05-31 Gordon Pen Company Stylographic pen
US2176568A (en) * 1937-02-10 1939-10-17 Freeman Samuel Fountain pen
GB474893A (en) * 1937-05-05 1937-11-09 Mabie Todd & Company Ltd Improvements in or relating to stylographic pens
US2217502A (en) * 1940-04-04 1940-10-08 Wallace Joseph Stylorgraphic pen
US2303373A (en) * 1941-11-03 1942-12-01 Sheaffer W A Pen Co Fountain pen
US2405381A (en) * 1943-04-26 1946-08-06 Eterpen Sa Financiera Writing instrument
US2396771A (en) * 1944-08-03 1946-03-19 Sr Dara H Brinson Fountain pen
US2512004A (en) * 1945-03-05 1950-06-20 Russell T Wing Fountain pen
US2509234A (en) * 1945-12-28 1950-05-30 Kahn David Inc Fountain pen cap
US2472343A (en) * 1946-03-19 1949-06-07 Anthony G Rosa Fountain pen

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874679A (en) * 1952-04-10 1959-02-24 Nahum A Bernstein Fountain pen construction
US3039436A (en) * 1956-09-19 1962-06-19 Exner Hellmuth Alfred Artur Fountain pen with retractable writing element
US3481675A (en) * 1968-01-22 1969-12-02 Seymour Greenberg Pen
FR2196914A1 (es) * 1972-07-21 1974-03-22 Rotring Werke Riepe Kg
US3836266A (en) * 1972-07-21 1974-09-17 Koh I Noor Rapidograph Tube writing pen
US3900268A (en) * 1972-09-18 1975-08-19 Edward Bok Pen with ink injection system
US3905709A (en) * 1973-02-19 1975-09-16 Edward Bok Pen with injection system
US3977798A (en) * 1973-12-22 1976-08-31 Koh-I-Noor Rapidograph, Inc. Tubular writing pen
US4019243A (en) * 1974-12-20 1977-04-26 Koh-I-Noor Rapidograph, Inc. Method for forming a tubular writing pen
JPS5892084U (ja) * 1981-12-14 1983-06-22 三菱鉛筆株式会社 インキ直接貯溜式筆記具のキヤツプ
JPS6111016Y2 (es) * 1981-12-14 1986-04-08
FR2641735A1 (en) * 1989-06-15 1990-07-20 Mitsubishi Pencil Co Removble cap for writing implement
USD667052S1 (en) * 2009-05-29 2012-09-11 Renart Limited Marker pen
USD667053S1 (en) * 2009-05-29 2012-09-11 Renart Limited Marker pen
CN112918156A (zh) * 2021-03-24 2021-06-08 深圳市一方玉贸易有限公司 一种带有防洒墨功能的自动浸润笔头的钢笔

Also Published As

Publication number Publication date
FR1031559A (fr) 1953-06-24
BE490129A (es)
DE915310C (de) 1954-07-19
GB684094A (en) 1952-12-10
NL77447C (es)
CH278969A (fr) 1951-11-15
DE911711C (de) 1954-05-17

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