US2023858A - Copying process - Google Patents

Copying process Download PDF

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Publication number
US2023858A
US2023858A US610713A US61071332A US2023858A US 2023858 A US2023858 A US 2023858A US 610713 A US610713 A US 610713A US 61071332 A US61071332 A US 61071332A US 2023858 A US2023858 A US 2023858A
Authority
US
United States
Prior art keywords
original
copying
script
moistening
sheets
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
US610713A
Other languages
English (en)
Inventor
Schatzler Ernst
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.)
PORROS PATENTVERWALTUNG A G BA
Porros Patentverwaltung A-G Basel
Original Assignee
PORROS PATENTVERWALTUNG A G BA
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 PORROS PATENTVERWALTUNG A G BA filed Critical PORROS PATENTVERWALTUNG A G BA
Application granted granted Critical
Publication of US2023858A publication Critical patent/US2023858A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances

Definitions

  • copying sheets are successively pressed against the front side bearing the original reversed script in a separate operation.
  • Spirit, alcohol, water or any other solvent for the ink may be employed for moistening the rear side of the original, that is the side remote from that bearing the script or picture.
  • Spirit and alcohol are to be used it upto sixty copies are to be made, but organic solvents for several hundreds of copies.
  • Any kind of writing paper may be employed for the original and any copying ink, such as crystal violet, may be used for producing the mirror reflected script.
  • the solvent is applied to the original by moistening the rear side thereof.
  • Fig. 1 is a perspectiveview of a fiat duplicator.
  • Fig. 2 shows arotary duplicator-in section.
  • the solvent is applied to this absorbent surface for example by means. of a'brush or the like, whereupon the sheet a,'.bearing' the original in mirror reflected script, is placed on the mois- -;tened surface with its side bearing the original script directed uppermost and pressed for ex-' ample by means oia roller.
  • the moisture of the surface 1) is transferred to the original and moistens it uniformly on its rear side.
  • the dry copying sheets arethen placed successively on the dry upwardly directed side of the originalsheet and pressed for example
  • the drum g of the rotary duplicator illustrated in Fig. 2 likewise has an absorbent surface d, for
  • a cotton covering which can be moistened with a brush or the like.
  • the sheet e bearing the original in mirror reflected script or 5 I picture is clamped on the moistened drum surface it in known manner, for example by means of a clamping device I with its front side-bearing the script directed outwards. Owing to the pressure between the drum 9 and the counter 0 pressure roller h the solvent is transferred from the absorbent drum surface at to the rear side of the original sheet e and moistens the same.
  • a duplicatingprocess consisting in producing an original in mirror reflected picture or script in copying ink on a sheet of paper, moistening this paper on the rear side with a solvent 10 for the copying ink, thereby making the original ready for copying, and in successively pressing dry copying sheets on to the front side of the original bearing the mirror reflected picture or script.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Printing (AREA)
  • Printing Methods (AREA)
  • Paper (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
US610713A 1931-05-19 1932-05-11 Copying process Expired - Lifetime US2023858A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DESCH94211D DE625570C (de) 1931-05-19 1931-05-19 Vervielfaeltigungsverfahren
FR736849T 1932-05-09
GB14078/32A GB390341A (en) 1931-05-19 1932-05-17 Improved process for copying documents
BE395459T 1933-04-04

Publications (1)

Publication Number Publication Date
US2023858A true US2023858A (en) 1935-12-10

Family

ID=25993665

Family Applications (1)

Application Number Title Priority Date Filing Date
US610713A Expired - Lifetime US2023858A (en) 1931-05-19 1932-05-11 Copying process

Country Status (5)

Country Link
US (1) US2023858A (enrdf_load_stackoverflow)
BE (1) BE395459A (enrdf_load_stackoverflow)
DE (1) DE625570C (enrdf_load_stackoverflow)
FR (1) FR736849A (enrdf_load_stackoverflow)
GB (1) GB390341A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704511A (en) * 1955-03-22 Moistening device for transfer press
US3122094A (en) * 1962-10-22 1964-02-25 John T Leclerc Method for reproducing images
US4596190A (en) * 1983-07-08 1986-06-24 Rohm Gmbh Method for concurrently forming and hot-transfer printing a synthetic resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704511A (en) * 1955-03-22 Moistening device for transfer press
US3122094A (en) * 1962-10-22 1964-02-25 John T Leclerc Method for reproducing images
US4596190A (en) * 1983-07-08 1986-06-24 Rohm Gmbh Method for concurrently forming and hot-transfer printing a synthetic resin

Also Published As

Publication number Publication date
GB390341A (en) 1933-04-06
DE625570C (de) 1936-02-12
BE395459A (enrdf_load_stackoverflow) 1933-05-31
FR736849A (fr) 1932-11-28

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