DE556841C - Send form for image or facsimile transmission - Google Patents

Send form for image or facsimile transmission

Info

Publication number
DE556841C
DE556841C DE1930556841D DE556841DD DE556841C DE 556841 C DE556841 C DE 556841C DE 1930556841 D DE1930556841 D DE 1930556841D DE 556841D D DE556841D D DE 556841DD DE 556841 C DE556841 C DE 556841C
Authority
DE
Germany
Prior art keywords
image
facsimile transmission
paper
conductive
send form
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
DE1930556841D
Other languages
German (de)
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Application granted granted Critical
Publication of DE556841C publication Critical patent/DE556841C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Heads (AREA)
  • External Artificial Organs (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Description

Es ist für elektrische Bild- und Faksimileübertragung bekannt geworden, ein poröses, halbleitendes, beispielsweise mit leitenden Körpern durchsetztes Papierblatt zu verwenden, welches vermittels einer bis zur Rückseite hindurchtretenden leitenden Tinte eine leitende Verbindung zwischen der Tastelektrode und der Bildtrommel herstellt. Hierbei ist der elektrische Kontakt sehr unsicher, da er von der zufälligen guten Auflage des Papiers an dem jeweiligen Tastpunkt abhängt. Gemäß der Erfindung wird ein Sendeformular benutzt, das aus isolierendem Stoff, wie Papier, besteht, der etwas die leitende Tinte, mit der das Bild geschrieben wird, absorbiert, aber auf der an der Trommel anliegenden Seite selbst mit einem leitenden oder halbleitenden Stoff bekleidet ist. Auf diese Weise wird eine breite KontaktflächeIt has become known for electrical image and facsimile transmission, a porous, to use semiconducting paper, for example interspersed with conductive bodies, which by means of a conductive ink penetrating to the rear side Establishes a conductive connection between the sensing electrode and the imaging drum. Here the electrical contact is very insecure, as it is caused by the random good support of the paper depends on the respective touch point. According to the invention, a transmission form is used, which is made of insulating material, like paper, which consists of something like the conductive ink with which the picture is written, absorbed, but with a conductive material on the side adjacent to the drum itself or semiconducting fabric. This way there will be a wide contact area

so zwischen Formular und Bildtrommel geschaffen. so created between form and image drum.

Das Sendeformular kann beispielsweise aus gewöhnlichem Papier bestehen, das auf einer Seite z. B. mit einem Stoff belegt ist, der als Aquadag bekannt ist, das ist eine Aufschwemmung von Graphit in Wasser unter Zusatz von Salmiak. Man kann auch ein mit Metall bekleidetes Papier verwenden. Solche Metallpapiere sind bekannt. Das Papier muß natürlieh genügend saugfähig sein, darf aber anderseits nicht zu saugfähig sein.The transmission form can for example consist of ordinary paper that is on a Page z. B. is covered with a substance known as Aquadag, that is a suspension of graphite in water with the addition of salmiak. You can also use paper lined with metal. Such metal papers are known. The paper must of course be sufficiently absorbent, but may on the other hand not be too absorbent.

Eine besonders zweckmäßige Ausführungsform des Formulars besteht in sehr dünnem Metallpapier, das mit seiner bekleideten Seite auf gewöhnliches, gutes Schreibpapier gelegt wird, das dazu dient, der Schreibfläche die genügende Steifheit zu geben. Die Verbindung der beiden Papiere kann· beispielsweise durch Gummi erfolgen. Eine Kante der leitenden Schicht läßt man überstehen und faltet sie herum, so daß sich ein Rand bildet, durch, den derJContakt mit dem Zylinder bewirkt wird. Als Tinte hat sich eine dicke Lösung von Aquadag als zweckmäßig erwiesen. A particularly useful embodiment of the form is a very thin one Metal paper that is placed with its covered side on ordinary, good writing paper that serves to give the writing surface sufficient rigidity. The connection of the two papers can be done for example by means of rubber. One edge of the let the conductive layer protrude and fold it around so that an edge is formed, caused by the contact with the cylinder will. A thick solution from Aquadag has proven to be useful as the ink.

Claims (2)

Patentansprüche:Patent claims: 1. Sendeformular zur Bild- bzw. Faksimileübertragung, dessen eine Seite mit einer leitenden Tinte beschrieben wird, dadurch gekennzeichnet, daß es aus porösem, auf der der Bildtrommel anliegenden Seite mit einer leitenden oder halbleitenden Schicht bedecktem Papier besteht.1. Send form for image or facsimile transmission, one side of which is written on with a conductive ink, characterized in that it is made of porous, on the side adjacent to the imaging drum with a conductive or semiconductive one Layer of covered paper. 2. Formular nach Anspruch 1, dadurch gekennzeichnet, daß die leitende Schicht mit Schreibpapier oder einer ähnlichen Unterlage zwecks Versteifung verbunden ist, wobei ein überstehender Rand der leitenden Schicht so um die versteifende Unterlage umgefaltet ist, daß dieser den Kontakt mit der Bildtrommel herstellt.2. Form according to claim 1, characterized in that the conductive layer is connected to writing paper or a similar pad for the purpose of stiffening, with a protruding edge of the conductive layer is folded around the stiffening pad that this the Makes contact with the imaging drum. 1.1.KHMJlU ΓΚΙ i'tt1.1.KHMJlU ΓΚΙ i'tt
DE1930556841D 1929-06-28 1930-05-10 Send form for image or facsimile transmission Expired DE556841C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19946/29A GB335615A (en) 1929-06-28 1929-06-28 Improvements in or relating to picture and like telegraph systems and apparatus for use therein

Publications (1)

Publication Number Publication Date
DE556841C true DE556841C (en) 1932-08-15

Family

ID=10137760

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930556841D Expired DE556841C (en) 1929-06-28 1930-05-10 Send form for image or facsimile transmission

Country Status (5)

Country Link
US (1) US2034162A (en)
DE (1) DE556841C (en)
FR (1) FR695940A (en)
GB (1) GB335615A (en)
NL (1) NL31202C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011722B (en) * 1951-07-11 1957-07-04 Int Standard Electric Corp Electro-sensitive, multipurpose recording medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607844A (en) * 1948-04-27 1952-08-19 Western Union Telegraph Co Wheatstone bridge having stylus shunting one arm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011722B (en) * 1951-07-11 1957-07-04 Int Standard Electric Corp Electro-sensitive, multipurpose recording medium

Also Published As

Publication number Publication date
NL31202C (en)
FR695940A (en) 1930-12-23
US2034162A (en) 1936-03-17
GB335615A (en) 1930-09-29

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