US3854565A - Magazine for a typewriter ribbon spool - Google Patents

Magazine for a typewriter ribbon spool Download PDF

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Publication number
US3854565A
US3854565A US00297837A US29783772A US3854565A US 3854565 A US3854565 A US 3854565A US 00297837 A US00297837 A US 00297837A US 29783772 A US29783772 A US 29783772A US 3854565 A US3854565 A US 3854565A
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Prior art keywords
typewriter
magazine
centering
ribbon spool
spool
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Expired - Lifetime
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US00297837A
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W Kupferschmidt
D Lison
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J32/00—Ink-ribbon cartridges

Definitions

  • a magazine for holding a typewriter ribbon spool on a typewriter frame comprises a substantially cylindrical flat container having a lid wall with a centering pin formation engageable with a hollow pin and an opposite or bottom wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween.
  • a centering ring or supporting rim is defined on one of the walls, for example, the bottom wall, and it provides means for centering the spool around the centering pin formation.
  • the lid wall includes means for centering the spool around the centering pin formation and for locating the inner periphery of the spool.
  • the magazine also includes engagement means in the form of recesses and projections which are engageable with complimentary means on the typewriter for holding the magazine against rotation with respect to the typewriter.
  • the present invention provides a magazine for a typewriter ribbon which is suitable for use with several types of typewriters because the size and the arrangement of the centering ring or supporting rim for the spool guide of the typewriter ribbon and the arrests for the rotation-proof bearing and holding of the magazine are designed to permit use with a large variety of typewriters.
  • the interior walls of the magazine are provided with a centering ring or supporting rim for the typewriter ribbon spool core and the outer sides of the magazine are provided with engagement elements, spaced from a centering pin formation, for engaging the magazine with the typewriter in a position in which it will not rotate with respect to the typewriter.
  • the centering ring or supporting rim for centering the magazine in the magazine container comprises a cam crown or a ring forming an inturned annular flange on the inner side of either a lid portion or a bottom of the magazine walls which define edges for positioning the inner edge of the typewriter ribbon spool.
  • the engagement devices on a magazine for insuring the anchoring of the magazine on the typewriter against rotation may comprise, for example, recesses between rimmed flanges of the magazine walls or projections or recesses formed on the magazine walls which are engagable with complimentary projections or recesses on the typewriter.
  • one or two of the planar surfaces of the magazine are provided with cam projections, springy tongues or the like, which engage with corresponding recesses of the magazine container of the typewriter.
  • a centering pin is arranged at the point of rotation of the magazine and can be a non-circular formation at its outside surface such that, when it engages with a corresponding hollow pin on a magazined container of the typewriter, the centering pin formation and the hollow pin cannot rotate relative to each other.
  • an object of the invention to provide an improved magazine construction for holding a typewriter ribbon spool, on a typewriter, which includes means for centering the spool in the magazine and means on the magazine for holding the magazine against rotation when it is inserted into a typewriter.
  • a further object of the invention is to provide a typewriter ribbon spool which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a top plan view of a magazine for a typewriter ribbon constructed in accordance with the invention
  • FIG. 2 is a section taken along the line 2-2 of FIG.
  • FIG. 3 is a bottom plan view of the magazine shown in FIG. 1;
  • FIG. 4 is a section taken along the line 4-4 of FIG.
  • FIG. 5 is a section taken along the line 55 of FIG. 3;
  • FIG. 6 is a section taken along the line 6-6 of FIG.
  • the invention embodied therein comprises a typewriter ribbon magazine which comprises a generally flat cylindrical container 50 having a first wall portion or lid 1 which is connected to a second wall portion or bottom part 2, for example, by means of press fasteners 3.
  • the bottom part 2 includes flanges 4 which project beyond the lid edge and which include discontinuous portions or recesses 5 therebetween which form arrests or engagement members for the rotation-proof bearing and holding of the magazine in the magazine container of a typewriter.
  • the magazine advantageously includes a centering pin formation 6 defining a point of rotation for the magazine.
  • the bottom part 2 also includes a handle formation 7 for the simple fitting of the magazine into the typewriter.
  • An opening or an aperture 8 is defined at one location around the periphery of the cylindrical container 50 for the passage of the ribbon 9 therethrough.
  • a carbon ribbon 9 is wound on a spool 13 whose core 10 which is adapted to rotate freely around the centering pin formation 6.
  • the magazine as a whole is advantageously centered on a hollow pin 11 which is carried by the typewriter (not shown).
  • the spool core 10 is centered with the aid of a ring or supporting rim 12, comprising a cam crown or ring forming an inturned annular flange which as shown in FIG. 2, rests against the inner edge of the outer spool face 14.
  • the magazine carries engagement means in the form of projections 15, 16 or 17 which are all defined on the outside bottom part 2 and which are engagable with similar elements or complimentary elements of the typewriter (not shown).
  • the engagement of the engagement means including the projections 15, 16 and 17 as well as the recesses with complimentary parts of the typewriter will result in the holding of the magazine in the magazine container of the typewriter against rotation.
  • FIGS. 6, 5 and 4 The cross sectional form of the projections 15, 16, and 17 are shown in FIGS. 6, 5 and 4 respectively.
  • a magazine for holding a typewriter ribbon spool having an inner edge on a typewriter frame comprising a substantially cylindrical flat container having a lid wall with a typewriter spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween, a centering ring on the opposite wall for centering the spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to said typewriter, said centering ring comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, and said centering pin formation comprising an indentation having an interior solid wall portion of circular configuration for centering the typewriter ribbon spool, whereby said magazine is engageable and useable with a variety of typewriter models without the necessity of passing bolt means completely through the magazine to secure the magazine to the typewriter frame.
  • said engagement means comprises flange portions of one of 5 said walls located at spaced circumferential locations and defining recesses therebetween.
  • a magazine according to claim 1, wherein said engagement means comprises a projection formed on one of said magazine walls.
  • a magazine for holding a typewriter carbon ribbon spool having a carbon ribbon and an inner edge thereon completely enclosed therein for use with a plurality of different typewriter models said magazine comprising a substantially cylindrical flat container having a lid wall with a typewriter ribbon spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter carbon ribbon spool therebetween, a supporting rim on the opposite wall of said container for centering the typewriter carbon ribbon spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to a typewriter, frame of a typewriter, said supporting rim comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, said engagement means comprising a. flange portions of one of said walls located at spaced circumferential locations and defining recesses therebetween, and

Abstract

A magazine for holding a typewriter ribbon spool on a typewriter frame comprises a substantially cylindrical flat container having a lid wall with a centering pin formation engageable with a hollow pin and an opposite or bottom wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween. A centering ring or supporting rim is defined on one of the walls, for example, the bottom wall, and it provides means for centering the spool around the centering pin formation. The lid wall includes means for centering the spool around the centering pin formation and for locating the inner periphery of the spool. The magazine also includes engagement means in the form of recesses and projections which are engageable with complimentary means on the typewriter for holding the magazine against rotation with respect to the typewriter.

Description

[451 Dec. 17, 1974 MAGAZINE FOR A TYPEWRITER RIBBON SPOOL Inventors: Wolfgang Kupferschmidt, Resse;
Dietrich Lison, Hannover, both of Germany Assignee: Firma Gunther Wagner, Hannover,
Germany Filed: Oct. 16, 1972 Appl. No.: 297,837
Foreign Application Priority Data Oct. 21, 1971 Germany 7139793 US. Cl. 197/151, 197/175 Int. Cl B41j 33/14 Field of Search 197/151, 172, 175;
9/1969 Gallant 197/151 1 2/ 1969 Engle et a1 197/151 3,482,684 12/1969 Schladale 197/151 X 3,551,038 12/1970 Bundschuh et al. 242/71.1 X 3,589,636 6/1971 Brown 242/683 Primary Examiner-Ernest T. Wright, Jr. Attorney, Agent, or FirmMcGlew and Tuttle [57] ABSTRACT A magazine for holding a typewriter ribbon spool on a typewriter frame comprises a substantially cylindrical flat container having a lid wall with a centering pin formation engageable with a hollow pin and an opposite or bottom wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween. A centering ring or supporting rim is defined on one of the walls, for example, the bottom wall, and it provides means for centering the spool around the centering pin formation. The lid wall includes means for centering the spool around the centering pin formation and for locating the inner periphery of the spool. The magazine also includes engagement means in the form of recesses and projections which are engageable with complimentary means on the typewriter for holding the magazine against rotation with respect to the typewriter.
4 Claims, 6 Drawing Figures MAGAZINE FOR A TYPEWRITER RIBBON SPOOL BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates, in general, to the construction of typewriter accessories and, in particular, to a new and useful magazine for a typewriter ribbon spool for positioning the spool on the typewriter frame.
2. Description of the Prior Art Contemporary typewriters can be equipped and used with a typewriter ribbon of the conventional kind which may be mounted on a bearing of the typewriter frame so that it may be unwound, or the typewriter may be equipped for operation with a magazine in which the ribbon is supplied ready for use and which may be connected for use upon insertion of the magazine. Such magazines are advantageously designed so that they completely enclose the carbon ribbon so that the carbon ink contained on the foil carrier need not contact the operators hand nor dirty the parts associated with the typewriter. The ribbon itself is wound on a spool core and it is centrally suspended in the magazine. The known magazines have to be designed according to the devices available on the typewriter and this results in an extensive stock-keeping because not every magazine is suitable to be fitted on every typewriter.
SUMMARY OF THE INVENTION The present invention provides a magazine for a typewriter ribbon which is suitable for use with several types of typewriters because the size and the arrangement of the centering ring or supporting rim for the spool guide of the typewriter ribbon and the arrests for the rotation-proof bearing and holding of the magazine are designed to permit use with a large variety of typewriters. The interior walls of the magazine are provided with a centering ring or supporting rim for the typewriter ribbon spool core and the outer sides of the magazine are provided with engagement elements, spaced from a centering pin formation, for engaging the magazine with the typewriter in a position in which it will not rotate with respect to the typewriter. The centering ring or supporting rim for centering the magazine in the magazine container comprises a cam crown or a ring forming an inturned annular flange on the inner side of either a lid portion or a bottom of the magazine walls which define edges for positioning the inner edge of the typewriter ribbon spool.
The engagement devices on a magazine for insuring the anchoring of the magazine on the typewriter against rotation may comprise, for example, recesses between rimmed flanges of the magazine walls or projections or recesses formed on the magazine walls which are engagable with complimentary projections or recesses on the typewriter. In the preferred arrangement one or two of the planar surfaces of the magazine are provided with cam projections, springy tongues or the like, which engage with corresponding recesses of the magazine container of the typewriter.
A centering pin is arranged at the point of rotation of the magazine and can be a non-circular formation at its outside surface such that, when it engages with a corresponding hollow pin on a magazined container of the typewriter, the centering pin formation and the hollow pin cannot rotate relative to each other.
Accordingly it is an object of the invention to provide an improved magazine construction for holding a typewriter ribbon spool, on a typewriter, which includes means for centering the spool in the magazine and means on the magazine for holding the magazine against rotation when it is inserted into a typewriter.
A further object of the invention is to provide a typewriter ribbon spool which is simple in design, rugged in construction and economical to manufacture.
For an understanding of the principles of the invention, reference is made to the following description of typical embodiments thereof as illustrated in the accompanying drawing:
BRIEF DESCRIPTION OF THE DRAWING In the drawing:
FIG. 1 is a top plan view of a magazine for a typewriter ribbon constructed in accordance with the invention;
FIG. 2 is a section taken along the line 2-2 of FIG.
FIG. 3 is a bottom plan view of the magazine shown in FIG. 1;
FIG. 4 is a section taken along the line 4-4 of FIG.
FIG. 5 is a section taken along the line 55 of FIG. 3; and
FIG. 6 is a section taken along the line 6-6 of FIG.
GENERAL DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawing in particular, the invention embodied therein comprises a typewriter ribbon magazine which comprises a generally flat cylindrical container 50 having a first wall portion or lid 1 which is connected to a second wall portion or bottom part 2, for example, by means of press fasteners 3. The bottom part 2 includes flanges 4 which project beyond the lid edge and which include discontinuous portions or recesses 5 therebetween which form arrests or engagement members for the rotation-proof bearing and holding of the magazine in the magazine container of a typewriter. The magazine advantageously includes a centering pin formation 6 defining a point of rotation for the magazine. The bottom part 2 also includes a handle formation 7 for the simple fitting of the magazine into the typewriter. An opening or an aperture 8 is defined at one location around the periphery of the cylindrical container 50 for the passage of the ribbon 9 therethrough.
As shown in FIG. 2 a carbon ribbon 9 is wound on a spool 13 whose core 10 which is adapted to rotate freely around the centering pin formation 6. The magazine as a whole is advantageously centered on a hollow pin 11 which is carried by the typewriter (not shown). However, in the case that the typewriter does not have a hollow pin 11, the spool core 10 is centered with the aid of a ring or supporting rim 12, comprising a cam crown or ring forming an inturned annular flange which as shown in FIG. 2, rests against the inner edge of the outer spool face 14. In addition, the magazine carries engagement means in the form of projections 15, 16 or 17 which are all defined on the outside bottom part 2 and which are engagable with similar elements or complimentary elements of the typewriter (not shown). The engagement of the engagement means including the projections 15, 16 and 17 as well as the recesses with complimentary parts of the typewriter will result in the holding of the magazine in the magazine container of the typewriter against rotation.
The cross sectional form of the projections 15, 16, and 17 are shown in FIGS. 6, 5 and 4 respectively.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.
What is claimed is:
l. A magazine for holding a typewriter ribbon spool having an inner edge on a typewriter frame, comprising a substantially cylindrical flat container having a lid wall with a typewriter spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween, a centering ring on the opposite wall for centering the spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to said typewriter, said centering ring comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, and said centering pin formation comprising an indentation having an interior solid wall portion of circular configuration for centering the typewriter ribbon spool, whereby said magazine is engageable and useable with a variety of typewriter models without the necessity of passing bolt means completely through the magazine to secure the magazine to the typewriter frame.
2. A magazine according to claim 1, wherein said engagement means comprises flange portions of one of 5 said walls located at spaced circumferential locations and defining recesses therebetween.
3. A magazine according to claim 1, wherein said engagement means comprises a projection formed on one of said magazine walls.
4. A magazine for holding a typewriter carbon ribbon spool having a carbon ribbon and an inner edge thereon completely enclosed therein for use with a plurality of different typewriter models, said magazine comprising a substantially cylindrical flat container having a lid wall with a typewriter ribbon spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter carbon ribbon spool therebetween, a supporting rim on the opposite wall of said container for centering the typewriter carbon ribbon spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to a typewriter, frame of a typewriter, said supporting rim comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, said engagement means comprising a. flange portions of one of said walls located at spaced circumferential locations and defining recesses therebetween, and
b. at least one projection formed on the opposite wall of the magazine engageable with the typewriter, said centering pin formation having an interior solid wall portion of circular configuration for centering the typewriter carbon ribbon spool, whereby said magazine is engageable and useable with a variety of typewriter models without the necessity of passing bolt means completely through the magazine to secure the magazine to the typewriter frame.

Claims (4)

1. A magazine for holding a typewriter ribbon spool having an inner edge on a typewriter frame, comprising a substantially cylindrical flat container having a lid wall with a typewriter spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter ribbon spool therebetween, a centering ring on the opposite wall for centering the spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to said typewriter, said centering ring comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, and said centering pin formation comprising an indentation having an interior solid wall portion of circular configuration for centering the typewriter ribbon spool, whereby said magazine is engageable and useable with a variety of typewriter models without the necessity of passing bolt means completely through the magazine to secure the magazine to the typewriter frame.
2. A magazine according to claim 1, wherein said engagement means comprises flange portions of one of said walls located at spaced circumferential locations and defining recesses therebetween.
3. A magazine according to claim 1, wherein said engagement means comprises a projection formed on one of said magazine walls.
4. A magazine for holding a typewriter carbon ribbon spool having a carbon ribbon and an inner edge thereon completely enclosed therein for use with a plurality of different typewriter models, said magazine comprising a substantially cylindrical flat container having a lid wall with a typewriter ribbon spool centering pin formation and an opposite wall spaced therefrom by an amount to accommodate the typewriter carbon ribbon spool therebetween, a supporting rim on the opposite wall of said container for centering the typewriter carbon ribbon spool around said centering pin formation, and engagement means defined on said container for anchoring said container against rotation with respect to a typewriter, frame of a typewriter, said supporting rim comprising an individual end formation on said opposite wall defining a bearing wall opposing the inner edge of the typewriter ribbon spool, said engagement means comprising a. flange portions of one of said walls located at spaced circumferential locations and defining recesses therebetween, and b. at least one projection formed on the opposite wall of the magazine engageable with the typewriter, said centering pin formation having an interior solid wall portion of circular configuration for centering the typewriter carbon ribbon spool, whereby said magazine is engageable and useable with a variety of typewriter models without the necessity of passing bolt means completely through the magazine to secure the magazine to the typewriter frame.
US00297837A 1971-10-21 1972-10-16 Magazine for a typewriter ribbon spool Expired - Lifetime US3854565A (en)

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DE7139793 1971-10-21

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294228A (en) * 1964-10-28 1966-12-27 Royal Typewriter Co Inc Carbon ribbon supply package
US3375990A (en) * 1965-07-06 1968-04-02 Amerline Corp Reel cover and apparatus for mounting on a reel
US3464533A (en) * 1966-10-14 1969-09-02 Olivetti Underwood Corp Carbon ribbon supply handling features in a typewriter
US3481445A (en) * 1965-10-14 1969-12-02 Ibm Cartridge ribbon supply
US3482684A (en) * 1968-05-14 1969-12-09 Allied Carbon & Ribbon Mfg Cor Ribbon reel carrier and dispenser
US3551038A (en) * 1968-05-23 1970-12-29 Eastman Kodak Co Single-point latch and interlock for a cartridge-loaded motion picture projector
US3589636A (en) * 1969-06-25 1971-06-29 Eastman Kodak Co Spindle construction and means for locating a cartridge with respect to motion picture projector or the like

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294228A (en) * 1964-10-28 1966-12-27 Royal Typewriter Co Inc Carbon ribbon supply package
US3375990A (en) * 1965-07-06 1968-04-02 Amerline Corp Reel cover and apparatus for mounting on a reel
US3481445A (en) * 1965-10-14 1969-12-02 Ibm Cartridge ribbon supply
US3464533A (en) * 1966-10-14 1969-09-02 Olivetti Underwood Corp Carbon ribbon supply handling features in a typewriter
US3482684A (en) * 1968-05-14 1969-12-09 Allied Carbon & Ribbon Mfg Cor Ribbon reel carrier and dispenser
US3551038A (en) * 1968-05-23 1970-12-29 Eastman Kodak Co Single-point latch and interlock for a cartridge-loaded motion picture projector
US3589636A (en) * 1969-06-25 1971-06-29 Eastman Kodak Co Spindle construction and means for locating a cartridge with respect to motion picture projector or the like

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GB1416171A (en) 1975-12-03
FR2162865A5 (en) 1973-07-20

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