US2050763A - Copying attachment for typewriters - Google Patents

Copying attachment for typewriters Download PDF

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Publication number
US2050763A
US2050763A US17476A US1747635A US2050763A US 2050763 A US2050763 A US 2050763A US 17476 A US17476 A US 17476A US 1747635 A US1747635 A US 1747635A US 2050763 A US2050763 A US 2050763A
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US
United States
Prior art keywords
typewriter
copying
carriers
ribbon
ribbons
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
US17476A
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English (en)
Inventor
Rabeck Karl
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Individual
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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 US2050763A publication Critical patent/US2050763A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/30—Manifolding or like arrangements

Definitions

  • This invention relates to copying attachments for typewriters, of the type employing auxiliary ink ribbons for insertion between the leaves on which the copies are to be made. It is already 5 known, for the purpose of making simultaneous or transfer copies with a typewriter, to provide an attachment for the typewriter carrying one or more auxiliary ink ribbons which are wound onto spools at both ends of the attachment, and
  • the device according to the invention can be attached in a very simple manner to any make of typewriter.
  • the insertion of the auxiliary ink ribbons between the leaves presents no dimculty, and a very considerable saving of time is eflected by eliminating the operations involved in the use of carbon paper when writing on single sheets with a varying number of copies.
  • the attachment according to the invention is particularly serviceable when long continuous lengths of paper are used instead of single sheets, since in this case the insertion of carbon paper for the production of copies is attended with very great difficulty.
  • Fig. 1 is a side elevation of the attachment according to the invention in the operative position, all parts of the typewriter not essential for the understanding of the nature and operation of this attachment being omitted.
  • Fig. 2 is a similar elevational view, with the 5 auxiliary ribbon carriers in the hinged or swung out position.
  • Fig. 3 is a front elevation of the left-hand half of a copying ribbon carrier showing the manner in which the ribbon is guided. 10
  • spindles 34 interconnect the two ends of the copying ribbon carriers 35 consisting of curved sheet metal strips which are rigidly attached by one end to the spindle 34, for instance by being 25 doubled round the latter, and which overlie the roller (in the case of the lowermost carrier) or the next lower carrier (in the case of the remaining carriers) and terminate on a level with the writing line.
  • One of the spools for each ribbon is provided with a feed device which permits of the inter- 40 mittent winding of the ribbon on to the one spool and its unwinding from the other spool, by hand.
  • each of the feed devices is equipped wlth a lever 40, 40', 40", respectively, which projects out to the front, and. 45 which is pivoted eoaxially with the spool at M.
  • Each of these levers is provided with a spring dog 42 adapted to engage in a ratchet wheel 43 which is coupled for rotation with the appropriate ribbon spool 36.
  • the forward ends of all 50 three levers 40, 40', 40" rest one upon the other, in the operative position of the attachment, that pressure exerted upon the uppermost causes the other two to be simultaneously depressed, thereby effecting the moving on of the ratchet wheels and consequent feeding forward .of the ribbon spools which are then held in their new position by a spring pawl 41.
  • Springs 44 are provided for restoring the levers into their initial positions.
  • a slot 45 engaged by a pin 46 attached to the journal plate 38.
  • the pivoted copying ribbon carriers 35 mounted in the slot in the bearing plate 3i are initially in the raised position shown in Fig. 2. It is then a simple matter to insert the copying ribbons one by one into their right places between the individual leaves which are spread apart for this purpose by the fingers of one hand while the other hand depresses the ribbon carriers with their ribbons one by one into the position for writing. After simultaneous depression of the levers 40, 49, 40" by pressure applied to the uppermost thereof, to eifect the feeding forward of the auxiliary ribbons, the typing can be begun.
  • the auxiliary ribbon carriers 35 are brought into the raised position shown in Fig. 2 by upward tilting of the lowermost lever 40 which thereby moves the other two levers 40' and 40 into the raised position; and are then ready to be used again in the manner described above.
  • the copying ribbons remain in position to the end of the rolls.
  • a duplicating attachment for typewriters at least two additional ink ribbons for insertion in front of copying leaves, carriers at both sides of the roller of the typewriter for the retention of the said ribbons in register with the writing line of the typewriter, and spools on the said carriers, each of the said carriers being individually pivoted about a separate axis lying parallel to the axis of the roller of the typewriter and adapted to be swung upwards and backwards relatively to the said roller.
  • a duplicating attachment for typewriters at least two additional ink ribbons for insertion in front of copying leaves, carriers at both sides of the roller of the typewriter for the retention of the said ribbons in register with the writing line of the typewriter, and spools for the said ribbons on the said carriers, a spindle interconnecting each associated pair of carriers, the said spindles being disposed parallel to the axis 01' the roller of the typewriter, a bearing plate attached to the typewriter at each side, a slot in the said hearing plate open at the top, the said spindles 20 adapted to be inserted in the slots of the said bearing plates for rotation about an axis lying parallel to the axis of the roller of the typewriter and to be readily removable in an upward direction.
  • a duplicating attachment as claimed in claim 1 further comprising a ratchet wheel attached to each of the said spools, a lever projecting to the front and rotatably mounted coaxially with each of the said. spools, a dog attached to the said lever and adapted to engage in the said ratchet wheel and to rotate the same on the depression of the said lever, the said levers being contiguously superposed in the operative position so that they are simultaneously operated on the depression of the uppermost thereof.

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  • Impression-Transfer Materials And Handling Thereof (AREA)
US17476A 1934-04-27 1935-04-20 Copying attachment for typewriters Expired - Lifetime US2050763A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2050763X 1934-04-27
AT144790T 1934-10-20
GB30505/35A GB464514A (en) 1934-04-27 1935-11-04 Copying attachment for typewriters

Publications (1)

Publication Number Publication Date
US2050763A true US2050763A (en) 1936-08-11

Family

ID=31998274

Family Applications (1)

Application Number Title Priority Date Filing Date
US17476A Expired - Lifetime US2050763A (en) 1934-04-27 1935-04-20 Copying attachment for typewriters

Country Status (4)

Country Link
US (1) US2050763A (de)
AT (1) AT144790B (de)
DE (1) DE651113C (de)
GB (1) GB464514A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1007784B (de) * 1954-04-24 1957-05-09 Heinrich Bellinger Anordnung an Vorrichtungen zur Herstellung von Spiegelschriftmatrizen

Also Published As

Publication number Publication date
DE651113C (de) 1937-10-07
AT144790B (de) 1936-02-25
GB464514A (en) 1937-04-20

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