GB738740A - Improvements in and relating to reservoir writing instruments of the ball tip type - Google Patents

Improvements in and relating to reservoir writing instruments of the ball tip type

Info

Publication number
GB738740A
GB738740A GB2576251A GB2576251A GB738740A GB 738740 A GB738740 A GB 738740A GB 2576251 A GB2576251 A GB 2576251A GB 2576251 A GB2576251 A GB 2576251A GB 738740 A GB738740 A GB 738740A
Authority
GB
United Kingdom
Prior art keywords
unit
writing
casing
ball
writing unit
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
Application number
GB2576251A
Inventor
Hans Reinhard Fehling
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.)
BIRO SWAN Ltd
Original Assignee
BIRO SWAN Ltd
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 BIRO SWAN Ltd filed Critical BIRO SWAN Ltd
Priority to GB2576251A priority Critical patent/GB738740A/en
Priority to DEB22753A priority patent/DE940630C/en
Publication of GB738740A publication Critical patent/GB738740A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00Ball-point pens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00Ball-point pens
    • B43K7/005Pen barrels

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)

Abstract

738,740. Reservoir pens. BIRO SWAN, Ltd., [formerly BIRO PENS, Ltd.]. Feb. 2, 1953 [Nov. 3, 1951], No. 25762/51. Class 146(3). In order to obviate surplus ink accumulating on the lip of the ball housing in a ball-point pen, the writing unit is mounted for rotation in and relatively to the holder. Automatic rotation may be caused by forces set up in the act of writing, i.e. by the couple produced on the ball, or by some motive power connected to the writing unit. As shown in Fig. 1, the writing unit 1, comprising a capillary tube reservoir 1a and a housing 3 for a writing ball 2, is grooved at 7 to receive three balls 6 located in holes in a holder casing 4. The balls 6 are retained by a split ring 8, or an outer sleeve, and the arrangement thus comprises an antifriction journal bearing upon the writing unit which will rotate within the casing 4 during the act of writing. In Fig. 5, a flange 12 on the unit 1 bears on balls 13 retained by a shoulder in the casing 4 ; in a modification, a ball race is interposed between the shoulder and flange. To prevent the unit 1 from being pushed into the casing in the act of writing, a further antifriction bearing may be disposed towards the rear end of the unit, or, as shown in Figs. 7 and 9, a thrust bearing may be used. In Fig. 7 there is a single ball 15, located within a tripod member 16, engaging a hardened bearing 17 within the writing unit. The ball 15 could be located in a metal thrust plate backed by a rubber block so that the unit 1 can yield resiliently during writing. Fig. 9 shows another resilient mounting comprising a cone 18 on a thrust plate 19 which is urged forward by a compression spring 20, the point of the cone entering an indent in a bearing 17 in the reservoir 1a. In another form of thrust bearing for the unit 1, the holder casing 4 is open-ended to receive a cap having an axial bore within which is a spring-urged ball. In Fig. 12, the writing unit 1 is located within the casing 4 by two ball bearings 21, 22 as described above, and an end plug 23 has an axial bore through which a flexible cable 24 extends. The cable is attached at one end to the unit 1, and the other end is attached to some means for imparting rotation thereto. In another form, the writing unit extends beyond the rear end of the casing and has attached thereto a pulley adapted to be rotated by an endless cord driven .in some known manner. For drawing straight lines along a straight-edge, the writing unit is extended beyond the front of the casing so that it bears against the straight-edge, and is thus rotated within the casing. Specifications 573,747 and 706,317 are referred to.
GB2576251A 1951-11-03 1951-11-03 Improvements in and relating to reservoir writing instruments of the ball tip type Expired GB738740A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2576251A GB738740A (en) 1951-11-03 1951-11-03 Improvements in and relating to reservoir writing instruments of the ball tip type
DEB22753A DE940630C (en) 1951-11-03 1952-11-04 Pen with ball point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2576251A GB738740A (en) 1951-11-03 1951-11-03 Improvements in and relating to reservoir writing instruments of the ball tip type

Publications (1)

Publication Number Publication Date
GB738740A true GB738740A (en) 1955-10-19

Family

ID=10232890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2576251A Expired GB738740A (en) 1951-11-03 1951-11-03 Improvements in and relating to reservoir writing instruments of the ball tip type

Country Status (2)

Country Link
DE (1) DE940630C (en)
GB (1) GB738740A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328496B1 (en) 1995-12-15 2001-12-11 The Gillette Company Marking instruments
AU745680B2 (en) * 1997-09-25 2002-03-28 Berol Corporation Writing instrument
AU746976B2 (en) * 1997-09-25 2002-05-09 Berol Corporation Writing instrument
WO2003041972A1 (en) * 2001-11-14 2003-05-22 Berol Corporation Writing instrument with biased rotatable assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005407B (en) * 1955-12-13 1957-03-28 Wilhelm Thomsen Drawing pen
DE1203641B (en) * 1959-04-04 1965-10-21 Staedtler Fa J S Ballpoint pen with a barrel tip that can be swiveled in all directions against a resilient force

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328496B1 (en) 1995-12-15 2001-12-11 The Gillette Company Marking instruments
AU745680B2 (en) * 1997-09-25 2002-03-28 Berol Corporation Writing instrument
AU746976B2 (en) * 1997-09-25 2002-05-09 Berol Corporation Writing instrument
USRE38440E1 (en) 1997-09-25 2004-02-24 Berol Corporation Writing instrument
WO2003041972A1 (en) * 2001-11-14 2003-05-22 Berol Corporation Writing instrument with biased rotatable assembly
US6860667B2 (en) 2001-11-14 2005-03-01 William Dowst Writing instrument with biased rotatable assembly

Also Published As

Publication number Publication date
DE940630C (en) 1956-03-22

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