US2681064A - Ring unit for interlocking loose leaves - Google Patents

Ring unit for interlocking loose leaves Download PDF

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Publication number
US2681064A
US2681064A US296364A US29636452A US2681064A US 2681064 A US2681064 A US 2681064A US 296364 A US296364 A US 296364A US 29636452 A US29636452 A US 29636452A US 2681064 A US2681064 A US 2681064A
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US
United States
Prior art keywords
ring
rings
leaves
connecting bar
loose
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
US296364A
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English (en)
Inventor
Berberich Willi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2681064A publication Critical patent/US2681064A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
    • B42F13/165—Filing appliances with means for engaging perforations or slots with claws or rings with flexible or resilient claws or rings

Definitions

  • the invention relates to a ring unit made of spring-like flattened material, for instance Celluloid, Bakelite, thermoplastics etc., for interlocking loose leaves,
  • the ring units known hitherto were split rings attached to a connecting bar which are rectangular, one-sided, and parallel to each other.
  • the cross section of the connecting bar seen in the longitudinal direction of the bar, extends across the arc of a circle represented by the rings, and the free ends of the rings lie either close to the parts of the rings adjacent to the connecting bar or they project radially.
  • Ring units of the above-mentioned kind have the disadvantage that the connecting bar, when arranged within the pack of leaves, causes a separation so that the pack of leaves is expanded so that it lifts the cover off the pack of leaves, if the connecting bar is arranged between the pack of leaves and one of the covers.
  • the structure can be arranged so that the arc of the ring coordinated with the chord is formed by the parts or" the rings adjacent to the free ring ends and the free ring ends cover the ring parts adjacent to the connecting bar. In this case it is appropriate to file the loose leaves on the parts of the rings adjacent to the connecting bar.
  • the are coordinated with the chord may also be formed by the parts of the rings adjacent to the connecting bar and by the free ring ends being bent outward so that they form the extension of the chord.
  • the loose leaves are placed on the parts of the rings adjacent to the free ring ends. It is a particular advantage of this design that the loose leaves can easily be exchanged.
  • Fig. 1 is a plan view of a loose-leai-book with a ring unit according to the invention
  • Fig. 2 is a perspective View of the ring unit
  • Fig. 3 is a section through a closed loose-leafbook provided with a ring unit
  • Fig. 4 is a section through an open loose-leafbook provided with a ring unit
  • FIG. 5 is a perspective view of a modified ring Fig. 6 is a section through a closed loose-leafbook provided with a ring unit according to Fig. 5,
  • Fig. 7 is a section through an opened looseleaf-book provided with a ring unit according to Fig. 5, in which the loose leaves are just being inserted or taken out, and
  • Fig. 8 is a section of the book in which a loose leaf is just being inserted.
  • Fig. 1 illustrates an arrangement in which two ring units l and 2 are applied, the rings being conducted through slots 3 of loose leaves 4.
  • the loose leaves 4 may also be covered by book covers.
  • the ring unit consists of the connecting bar. 5 and the rings 6.
  • the connecting bar may have any length, and accordingly many rings may be arranged at spaced intervals.
  • the latter forms part of a chord of a circle defined by the rings 6.
  • the arc 6b of the rings coordinated with the chord is formed by the parts of the rings adjacent to the free ends 6'. Accordingly the loose leaves 4 with their slots 3 are filed on the parts 6" of the rings adjacent to the connecting bar 5.
  • the parts 6 of the rings 5 adjacent to the connecting bar 5 and the free ring ends 6' touch each other elastically.
  • the loose leaves are covered by book covers 1, the arrangement being such so that the connecting bar 5 is be tween the one book cover I and l and the loose leaves 4. In this way the connecting bar 5 cannot be seen from the outside.
  • This invention has the advantage that the connecting bar 5 might also be disposed at any other place of the pack of loose leaves 4 without expanding this pack.
  • Fig. 4 the loose-leaf-book according to Fig. 3 is illustrated in the open position. It will be seen that the leaves lie quite flat and cannot fall oii the ring unit by themselves. An exchange of the leaves is also made possible by expanding the rings.
  • the connecting bar 8 seen in its longitudinal direction, is also so disposed that it lies on a chord of the circle represented by the rings 9. In this case, however, in comparison with the example of design according to Figs.
  • the arc 9b coordinated with the chord is formed by the parts of the rings 9 adjacent to the connecting bar 8, and accordingly the loose leaves 4 with their slots 3 are filed on the parts 9" of the ring9 adjacent to the free ring ends 9.
  • the free ring ends 9' are bent outward so that they form the extension of the chord in which the cross section of the connecting bar 8 is disposed.
  • the rings are closed by the knees 16 which are formed by bending the connecting bar 8 and the free ring ends .9 out of the circular form contacting elastically. In this case they will slightly overlap.
  • a ring unit binder for slotted loose leaves comprising a bar, and split rings integral with the bar, the bar and the rings being composed of a spring-like flattened material, said rings being arranged parallel to each other and one end of each ring being connected to one side edge of the bar, the profile of the bar being arranged in the direction of a chord of each ring, and the part of eachring adjacent to the bar being arranged in the position of the are coordinated to said chord, the free end of each ring being arranged in an outward position in the direction of said chord, each ring comprising two kneeshaped parts resiliently urged toward each other,
  • knee-shaped part consisting of the part of such ring connected to the bar and the adjacent part of the bar
  • the other knee-shaped part consisting of the free end of such ring arranged in an outwardly directed position in the direction of said chord and of the part of such ring adjacent to said outwardly directed free end
  • both knee-shaped parts being arranged in elastically contacting relation
  • said loose leaves being filled with their slots on the parts of said rings adjacent to the free ends of the rings respectively, and each bent-out free end of each "ring being longer than the width of the slots of the leaves and being .substantially'in a plane with the bar in the normal position of .the binder.

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  • Orthopedics, Nursing, And Contraception (AREA)
  • Sheet Holders (AREA)
US296364A 1952-03-27 1952-06-30 Ring unit for interlocking loose leaves Expired - Lifetime US2681064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE304053X 1952-03-27

Publications (1)

Publication Number Publication Date
US2681064A true US2681064A (en) 1954-06-15

Family

ID=6115328

Family Applications (1)

Application Number Title Priority Date Filing Date
US296364A Expired - Lifetime US2681064A (en) 1952-03-27 1952-06-30 Ring unit for interlocking loose leaves

Country Status (4)

Country Link
US (1) US2681064A (de)
CH (1) CH304053A (de)
FR (1) FR1061423A (de)
GB (1) GB718471A (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242185A (en) * 1938-11-29 1941-05-13 Plastic Binding Corp Binder
US2285234A (en) * 1941-05-06 1942-06-02 Tauber Rudolf Loose leaf binder
US2421404A (en) * 1945-07-30 1947-06-03 Alex A Anderskow Loose-leaf binder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242185A (en) * 1938-11-29 1941-05-13 Plastic Binding Corp Binder
US2285234A (en) * 1941-05-06 1942-06-02 Tauber Rudolf Loose leaf binder
US2421404A (en) * 1945-07-30 1947-06-03 Alex A Anderskow Loose-leaf binder

Also Published As

Publication number Publication date
CH304053A (de) 1954-12-31
GB718471A (en) 1954-11-17
FR1061423A (fr) 1954-04-12

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