US1853731A - Reservoir pen - Google Patents

Reservoir pen Download PDF

Info

Publication number
US1853731A
US1853731A US473589A US47358930A US1853731A US 1853731 A US1853731 A US 1853731A US 473589 A US473589 A US 473589A US 47358930 A US47358930 A US 47358930A US 1853731 A US1853731 A US 1853731A
Authority
US
United States
Prior art keywords
nib
reservoir
passage
point
air
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
US473589A
Other languages
English (en)
Inventor
Kovacs Theodor
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.)
FIRM GUNTHER WAGNER
Original Assignee
FIRM GUNTHER WAGNER
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
Application filed by FIRM GUNTHER WAGNER filed Critical FIRM GUNTHER WAGNER
Application granted granted Critical
Publication of US1853731A publication Critical patent/US1853731A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

  • 1t' is an obj ect' of my invention to prevent sur .sectional area of which is l the inlet KK opening of the nib is broken by the make-up with two capillary giooves nasse, una in Germany August-19, 1929'.
  • Figs. '2, 3 and 4 are cross sections of the feed lbar and the nib onthe corresponding o lines in Fig. 1, i
  • Fig.- 5 is an end elevation of the feed bar ,Y viewed yin thedirec'tionfof the arrow V inf.. v Fig-1,- -t- Fig. 6 is an elevation of the feed bar viewed from the left-inxFig. 41,- and S Fig. 7 is a longitudinal section of the feed bar Jtaken on the line VII-VII in Fig. 3.
  • A is thev neck of the reservoir penB- islthe feed bar
  • C is the nib
  • D is its air ⁇ inlet opening.
  • E.y is the passagefn the feed bar which is'p'ovided F--F at its base.
  • Any number of ooves' may be rovided in- .stead of two. ⁇ ⁇ T ⁇ e cross-sectiona 'area ofthe assageE is largest at'the level of the ⁇ air fromthis point it is gradually restricted to a ⁇ point which is about at the level of the upper end ffthe nib C.
  • the depth of the airpassagesE is varied-by a parabolic law.
  • tle passage E has been shown straight and may be madestraight inpractice.
  • the fertil bar is stepped at H near 73 its" upper endv so t t thecross-sectionalarea of the air passage E is ⁇ abruptly increased tol form an'ante chamber N offthe reservoir K.
  • the feed barB has a'substailtially cylinlnlet opening D and drical central portion 1, with which it .fits the 80- boreof 4the neck A.
  • the seat for the nib C is also formed by this central portion, the ⁇ nib being tcaught between the central portion and the inner wall of the neck A.
  • the rear faceofLV the central portion i. e., the-face whichis op 35 positethe ⁇ seat for the nib' C, is' lstepped at 2 and from this point to its lower ,end 3 the configuration of the feed barv at its back resembles the letter S, as shown in Fig. 1.
  • The-back itc self is straight in transverse directiomas will l0 Fig. 1 is a section ofthe neck, the'nib and l p 4 only the central rib 16.
  • the front face of the feed bar from its lower end 3 to the point 4 at the lower end of the step H is parallel to the nib C and from the point 4 it is shaped 5 like the letter Z, 4having a kink 6 at the upper end of the step H, and another kink at 7.
  • the portion from the kink 7 to the upper end 5 of the feed bar may be parallel to the step H.
  • the passage E is straight from its intersec- 10 tion 8 with the step H to a point 9 which is a short distancbelow the upper end of the ai; ⁇
  • inlet opening D and slightly inclined toward the back of the feed bar. From the point 9 Yto a point 33 above the lower end 3 of the feed bar it is curved. As mentioned, its bottom, supposing that its width is constant, should be curved on a parabola, but for practical considerations it is preferred to make it straight from 8 to 9.
  • the capillary passages F extend throughv and 13 but the surface of the ink is reduced on account ofthe gradual restriction 'of the passage so that the resistance against upward movement f the liquid due to its surfacetension, is in-n creased.
  • Variations of the cross-sectional area of the air passage E may be effected by varying its" depth, as shown, by varying its width, or by varying both factors.
  • I may also design the air passage with constant crosssectional area and so arrange V.the nib c that it penetrates deeper into the passage at its upper end than atits lower en I wish it to be understood that I do not desire to be limited to the exact details of i construction shown and described for ob;
  • a reservoir pen comprising a reservoir for a writin li uid, a nib yhaving an. air inlet opening, an a eed bar extending from said reservoir to ⁇ said nib and having an air-passage and capillary grooves connected with said reservoir, the cross-sectionall area of 'which passage is gradually reduced from said nib toward said reservoir, and is so lar at the level of' said air inlet opening that t e liquid in said passage will not close said air inlet lopening when surging of the liquid occurs.
  • k 4.
  • a reservoir pen comprising a reservoir for a writingliquid, a nib, and afeed bar extending from said reservoir to said nib and having an air passage and capillary grooves yconnected with said reservoir, the cross-see- -tionai area of yvhh passage 1s gradually re- .duced from sald nib toward said reservoir at such a rate that at any position of thesurface of the ink in said passages the capillary forces at the edge of said surface exceed the suction acting on the surface for a constant amount, with an abrupt increase of ⁇ cross-sectional area near the upper end of said nib.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
US473589A 1929-08-19 1930-08-07 Reservoir pen Expired - Lifetime US1853731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE356436T 1929-08-19

Publications (1)

Publication Number Publication Date
US1853731A true US1853731A (en) 1932-04-12

Family

ID=31895283

Family Applications (1)

Application Number Title Priority Date Filing Date
US473589A Expired - Lifetime US1853731A (en) 1929-08-19 1930-08-07 Reservoir pen

Country Status (2)

Country Link
US (1) US1853731A (enrdf_load_stackoverflow)
GB (1) GB356436A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289640A (en) * 1956-12-22 1966-12-06 Montblanc Simplo Gmbh Ink conductor for fountain pens

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539096A (en) * 1949-09-19 1951-01-23 Eitel Mccullough Inc Electron tube and grid for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289640A (en) * 1956-12-22 1966-12-06 Montblanc Simplo Gmbh Ink conductor for fountain pens

Also Published As

Publication number Publication date
GB356436A (enrdf_load_stackoverflow) 1931-09-10

Similar Documents

Publication Publication Date Title
US1853731A (en) Reservoir pen
JPS60215890A (ja) くず紙から得られた繊維材料懸濁液を浮遊させる浮遊装置
US2041786A (en) Boundary layer control for wings
US2668438A (en) Bubble tube for specific gravity meters
US758934A (en) Fountain-pen.
US271455A (en) Sylvestee w
US911336A (en) Writing-pen.
US770417A (en) Writing-pen
US314547A (en) Fountain-pen
US1953976A (en) Pen
US1883210A (en) Inkwell
US671881A (en) Fountain-pen.
US578834A (en) Third to lafe harpole and james tharp
US1544161A (en) Drawing-pen nib, more particularly for fountain pens
US910980A (en) Feed-bar for fountain-pens.
US450197A (en) Fountain-pen
DE498566C (de) Fuellfederhalter
GB546679A (en) Fountain pen
US325663A (en) Lb eot w
US6883A (en) Improvement in
US698881A (en) Fountain-pen.
US237454A (en) Fountain-pen
US730006A (en) Fountain-inkstand.
US909236A (en) Writing-pen.
US1574929A (en) Fountain pen