US3423157A - Support and feeding assembly for pens of fountain pens - Google Patents

Support and feeding assembly for pens of fountain pens Download PDF

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Publication number
US3423157A
US3423157A US610391A US3423157DA US3423157A US 3423157 A US3423157 A US 3423157A US 610391 A US610391 A US 610391A US 3423157D A US3423157D A US 3423157DA US 3423157 A US3423157 A US 3423157A
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United States
Prior art keywords
nib
feed bar
pens
capillary
fountain
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Expired - Lifetime
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US610391A
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English (en)
Inventor
Guy Frederic Rigondaud
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LE FOYER ET CIE
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LE FOYER ET CIE
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Publication date
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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

  • a support and ink feed device for the nib of a fountain pen comprising a feed bar having a convex upper surface at the end of a stern having 'a capillary channel communicating with the ink supply of the pen, a recess being formed in the upper convex surface with shoulders at the margins thereof for supporting the lateral edges of a nib such that a main central portion of the recess is open beneath the nib.
  • the recess communicates with the capillary channel via a duct and is of a lesser depth than that of the duct and channel.
  • the present invention relates to a feed bar and feeding device for nibs of writing instruments, and more particularly for nibs of fountain pens.
  • a curved nib of a fountain pen is generally fed with ink by means of capillary gaps or intervals formed on the convex face of said feed bar with which the nibs is in contact by its concave portion.
  • These capillary intervals are mostly fine longitudinal grooves which constitute the extensions of a capillary duct, the other end portion of which leads to the ink-reservoir.
  • the feed bar has present on its face in contact with the nib, a hollow space of a small depth, wherein opens the capillary duct, connected at its other end with the ink reservoir.
  • the capillary feeding space of the nib is thus limited by said hollow space and the concave face of the nib, so that the latter is in contact with the ink over a surface which is substantially larger than when placed on a known feed bar, provided with fine grooves.
  • the great area of the hollow space, defining the capillary interval enables the use, for the feed bar, of a material of a lower degree of wettability, than that necessary up to the present for the known feed bars of a fountain pen, and thus permits the use of material of lower cost.
  • FIGURE 1 is a plan View of a feed bar supporting assembly, according to the invention, mounted on a body shown in cross section;
  • FIGURE 2 is a cross-sectional view along line 2-2 of FIGURE 1, with the nib set in position;
  • FIGURE 3 is a cross-sectional view along line 3-3 of FIGURE 2;
  • FIGURE 4 is a cross-sectional view along line 4-4 of FIGURE 2;
  • FIGURE 5 is a cross-sectional view of the barrel of the fountain pen taken substantially along the line 4-4 of FIGURE 2;
  • FIGURE 6 is a cross-sectional view of the feed bar taken substantially along line 4-4;
  • FIGURE 7 is a top view, partly broken away, for a different embodiment of the device.
  • FIGURE 8 is a cross-sectional view along line 8-8 of FIGURE 7;
  • FIGURE 9 is a top view of the feed bar as illustrated in FIGURE 7;
  • FIGURE 10 is a cross-sectional view along line 10-10 of FIGURE 9;
  • FIGURE 11 is a view, in side elevation, of the feed bar of FIGURES 9 and 10;
  • FIGURE 12 is a longitudinal cross-sectional view of a barrel adapted to cooperate with the feed bar of FIG- URES 9 to 11;
  • FIGURE 13 is a cross-sectional view along line 13-13 of FIGURE 12;
  • FIGURE 14 is a front view of the section as illustrated in FIGURE 12;
  • FIGURE 15 is a cross-sectional view along line 15-15 of FIGURE 11.
  • the improved feed bar 10 has a general shape similar to that of the usual devices used, i.e., it presents a substantially semi-cylindrical body .11 ending at its front end with a tapered portion 12.
  • the upper convex face 13 of the feed bar is formed with a hollow space 14 which, in plan view, presents a substantially pearshaped contour with longitudinal sides 15 and 16, the distance of which increases from the front ends 17 and 18 up to the rear end portions 19 and 20, where they join with a curved base 21.
  • the front edge 22 of said hollow space is substantially rectilinear.
  • the hollow space 14 has a small, substantially constant depth, so that it is parallel to the inner concave face 23 (FIGURE 4) of nib 24 with which the feed bar 10 is cooperating.
  • the hollow space .14 has a sufficient length for it to be present, on one hand, under a portion of slit 25 defining the nib tips and, on the other hand, beneath a substantial part of body 26 of the pen, as best shown in FIGURE 2.
  • Nib 24 rests by the longitudinal edges 27 and 28 of its inner face 23, on bearing surfaces 29 and 30, bounding sides 15 and 16 of the hollow space, the positioning of the nib being ensured by shoulder members 31 and 32.
  • Body 33 of the barrel is formed with a bore 34 (FIG- URE 5) of substantially semi-cylindrical shape, and on the plane bottom 35 of said bore rests the lower face 36, also plane, of the feed bar, the upper, substantially semicylindrical face 37 of said bore surmounting the upper face 38 of the nib over the total width thereof, the extremity portions 39 and 40 of face 37 cooperating with the margins 41 and 42 of the feed bar.
  • a bore 34 (FIG- URE 5) of substantially semi-cylindrical shape, and on the plane bottom 35 of said bore rests the lower face 36, also plane, of the feed bar, the upper, substantially semicylindrical face 37 of said bore surmounting the upper face 38 of the nib over the total width thereof, the extremity portions 39 and 40 of face 37 cooperating with the margins 41 and 42 of the feed bar.
  • Feed bar 10 extends, towards the rear, with a stem or rod 43, also called sometimes a tongue (FIGURE 3), having a tranverse substantially semi-circular cross section, wherein is formed a longitudinal groove 44, having a rectangular cross section, with parallel plane faces 45, 46 and bottom 47.
  • Stem or rod 43 and body 11 of the feed bar join with a portion 48 of a progressively increasing height from said rod, which has a groove 49 with a curved bottom 50, and extending groove 44 with a rectilinear bottom.
  • the groove 50 opens in the upper face 13 of the support, along a further groove 51 (FIGURES 1 and 2), having a rectilinear bottom substantially of the same height as groove 44, the depth of the hollow space 14 being substantially smaller than the height of said groove 51.
  • Body 33 of the barrel comprises a channel or duct 52 opening, towards the front part, in the bevelled front face 53 and, towards the rear portion, in a compartment 54 forming an enlargement of bore 55 wherein is located 3 the body of stem 43 of the feed bar, thus defining an annular interval 56 around said stem.
  • the ink feeding to the nib is achieved from the reservoir by means of a circuit comprising groove 44 extending to the curved portion 49 and groove 51, then to the hollow space 14 which extends under a substantial portion of the nib, thus providing therefor an abundant and uniform ink feeding.
  • Air may have access to the reservoir through duct 52, annular interval 56 and bore 55.
  • the large surface of the hollow space enables the use, for forming the feed bar, of a material having a wettability coefficient which is lower than that of the materials generally used to this end.
  • the very shape of the capillary interval underlying the nib enables an easy manufacture of the feed bar by moulding.
  • the bottom 60 of the hollow portion 61 of the feed bar is offset with respect to shoulders 62 and 63 on which margins 64 and 65 of the nib are resting, so that the capillary gap 66 formed between bottom 60 of the hollow space and the internal face 67 of the nib 68, has a depth which decreases from the peripheral parts 70, 71 of the hollow portion up to the central portion 72, at the level of which there is formed the slit 69 of the nib.
  • This arrangement further improves the feeding of the nib tip.
  • the contour of the hollow space is substantially rectangular and is formed with longitudinal sides 73 and 74 (FIGURE 9) and a transverse rear side 75.
  • the feed bar is formed with a tapered portion 76 ending in a frontal edge 77 where also end curved portions 78 (FIGURE 11).
  • the small capillary channel 79 of the stem or tongue 80 extends to the groove 81 with curved bottom 82 in the rear portion 83 of the feed bar, the upper plane face 84 of which is limited in front by the edge 75 forming an abutment for the rear end portion of the nib, the groove 81 also ending in the rear part of the curved bottom 60 of the hollow space 61.
  • Barrel 85 is formed with a bore 86 (FIGURES 13 and 14) the upper face 87 of which is circular and the bottom 88 is plane.
  • a duct 89 for the air admission, ending at the front end part in the bevelled portion 90 of the section and at the rear end into a chamber 91, of a larger diameter.
  • capillary grooves 92 of a substantially trapezoidal shape, similar to duct 89, but of a smaller width than the latter; the apexes 93 of the grooves are arranged along a cylinder which substantially extends surface 87.
  • Grooves 92 do not open at the front end, but are limited therein by a wall 94.
  • the grooves 92 serve for retaining the ink which may be urged out of the ink reservoir, by reason of the increase of the pressure of the air contained in said reservoir.
  • the stem or tongue 80 is located in a tube 95, the bev elled rear end portion 96 of which forms a percussion or drill member of a cartridge C constituting the ink reservoir located in the fountain pen body; at its front end portion tube is integral with a body 97, having the shape of a cup the external cylindrical surface 98 of which is pressed by friction into chamber 91 of the barrel.
  • a central annular boss 99 of body 97, extending tube 95, is formed with a chamber 100 facilitating the insertion of the stem or tongue 80 of the feed bar.
  • a support and ink feed device for the nib of a fountain pen comprising a feed bar including a stem having a capillary groove communicating with the ink supply of the pen, and a front portion on said stern for supporting a nib and for feeding ink thereto, said front portion having a convex upper surface for receiving the nib and a recess at said surface with a main central portion of a given depth and reduced marginal portions for supporting lateral edges of the nib such that the main central portion is open beneath the nib, said feed bar having a capillary duct providing communication between said groove and said recess, the main portion of the recess having a lesser depth than that of said duct and groove.
  • a device comprising a pen barrel supporting said feed bar, said barrel having a concave surface facing said convex surface, said convex surface having a circular transverse cross-section which is eccentric with respect to the concave surface of the barrel.
  • a device wherein said front portion of the feed bar has a shoulder at said marginal portion for securing the nib against transverse displacement.
  • a device comprising a pen barrel supporting said feed bar and having an air inlet duct and longitudinal capillary retaining grooves.
  • said capillary retaining grooves are arranged on both sides of the air inlet duct and said barrel includes a wall closing the capillary grooves at the front thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US610391A 1966-01-21 1967-01-19 Support and feeding assembly for pens of fountain pens Expired - Lifetime US3423157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46684A FR1471265A (fr) 1966-01-21 1966-01-21 Dispositif de support de plume de stylographe

Publications (1)

Publication Number Publication Date
US3423157A true US3423157A (en) 1969-01-21

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Application Number Title Priority Date Filing Date
US610391A Expired - Lifetime US3423157A (en) 1966-01-21 1967-01-19 Support and feeding assembly for pens of fountain pens

Country Status (8)

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US (1) US3423157A (me)
BE (1) BE692961A (me)
CH (1) CH459807A (me)
DE (1) DE6601791U (me)
FR (1) FR1471265A (me)
GB (1) GB1178731A (me)
NL (1) NL6700392A (me)
SE (1) SE315225B (me)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091610B1 (de) * 1982-03-30 1986-06-04 Anweiler, Walter, Ing. (grad.) Tintenleiter für Füllfederhalter
DE3736954C1 (de) * 1987-10-31 1988-12-15 Montblanc Simplo Gmbh Tintenleiter fuer einen Fuellfederhalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US264451A (en) * 1882-09-19 William e
US723112A (en) * 1902-01-16 1903-03-17 Paul E Wirt Fountain-pen.
US757500A (en) * 1903-12-14 1904-04-19 William R Rothwell Fountain-pen.
US879436A (en) * 1908-02-18 George Washington Bennum Fountain-pen.
US2774333A (en) * 1950-12-19 1956-12-18 Kahn David Inc Fountain pen with improved feed construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US264451A (en) * 1882-09-19 William e
US879436A (en) * 1908-02-18 George Washington Bennum Fountain-pen.
US723112A (en) * 1902-01-16 1903-03-17 Paul E Wirt Fountain-pen.
US757500A (en) * 1903-12-14 1904-04-19 William R Rothwell Fountain-pen.
US2774333A (en) * 1950-12-19 1956-12-18 Kahn David Inc Fountain pen with improved feed construction

Also Published As

Publication number Publication date
GB1178731A (en) 1970-01-21
DE6601791U (de) 1969-03-20
CH459807A (fr) 1968-07-15
SE315225B (me) 1969-09-22
NL6700392A (me) 1967-07-24
BE692961A (me) 1967-07-20
FR1471265A (fr) 1967-03-03

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