DE189917C - - Google Patents
Info
- Publication number
- DE189917C DE189917C DENDAT189917D DE189917DA DE189917C DE 189917 C DE189917 C DE 189917C DE NDAT189917 D DENDAT189917 D DE NDAT189917D DE 189917D A DE189917D A DE 189917DA DE 189917 C DE189917 C DE 189917C
- Authority
- DE
- Germany
- Prior art keywords
- roller
- segments
- printing
- copies
- pad
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/04—Roller platens
Landscapes
- Handling Of Cut Paper (AREA)
Description
. Die Härte der Papierwalzen für Schreibmaschinen richtet sich nach der Größe der Durchschlagskraft, welche von einer Schreibmaschine verlangt wird. Der Durchschlagskraft entsprechend sind daher die Schreibmaschinen mit einer härteren oder weicheren Walze oder Schreibunterlage versehen. Bei Anwendung harter Walzen vermehrt man die Anzahl und die Schärfe der Durchschläge.. The hardness of the paper rollers for typewriters depends on the size of the Power that is required of a typewriter. The impact Accordingly, the typewriters are provided with a harder or softer roller or writing pad. at Using hard rollers increases the number and sharpness of the copies.
ίο «Anderseits leidet die harte Walze aber sehr, wenn nur ein Bogen beschrieben wird, da die elastische Unterlage, welche bei Durchschlägen durch die größere Anzahl der zur Verwendung kommenden Bogen gebildet wird, fehlt.ίο «On the other hand, the hard roller suffers a lot, if only one sheet is written, because the elastic underlay, which is used in the case of carbon copies formed by the larger number of sheets to be used is absent.
IS In der Zeichnung ist eine Vorrichtung veranschaulicht, die das Wechseln der in der Zone des Typenabdruckes befindlichen Unterlage zu jeder Zeit durch einfaches Bewegen eines Armes gestattet, und zwar auf folgendeIS The drawing illustrates a device the changing of the base located in the area of the type imprint Permitted at any time by simply moving an arm, namely to the following
ao Weise:ao way:
An den Enden der Papierwalze b sind auf der Achse α derselben Segmente c drehbar befestigt. Diese Segmente sind durch eine Stange d fest miteinander verbunden, so daß beide Segmente gleichzeitig durch Drehen des Armes e um die Walzenachse bewegt werden können. Über den kreisförmigen Teil der beiden Segmente ist ein Gummistreifen gespannt, der den Walzenkörper überdeckt und als Druckunterlage dienen kann.At the ends of the paper roll b , the same segments c are rotatably mounted on the axis α. These segments are firmly connected to one another by a rod d so that both segments can be moved simultaneously around the roller axis by rotating the arm e. A rubber strip is stretched over the circular part of the two segments, which covers the roller body and can serve as a printing pad.
Während die Walze hart ist, tragen die Segmente eine weiche Gummiunterlage f. Die Fig. 2 zeigt die Stellung der Unterlage, wenn keine Durchschläge gemacht werden sollen. Die Fig. 3 dagegen veranschaulicht die Stellung der Unterlage bei der Herstellung von Durchschlagen. Die Pfeile deuten in jeder Figur die Druckrichtung an.While the roller is hard, the segments carry a soft rubber pad F. Fig. 2 shows the position of the pad when no copies are to be made. 3, on the other hand, illustrates the position of the base during the production of copies. The arrows in each figure indicate the direction of pressure.
Es geht daraus hervor, daß'zu jeder Zeit durch einfaches Drehen des Hebels die weiche Unterlage zwischen dem zu beschreibenden Papier und der Walze in die Zone des Typenabdruckes gebracht oder aus. derselben entfernt werden kann.It follows from this that 'at any time, by simply turning the lever, the soft Underlay between the paper to be written on and the roller in the area of the type imprint brought or out. the same can be removed.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE189917C true DE189917C (en) |
Family
ID=453421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT189917D Active DE189917C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE189917C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2827895A1 (en) * | 1978-06-24 | 1980-05-14 | Helmut Steinhilber | Printing contact block for data line printer - has profiled block with low friction properties and has mounted channels for adjustable components |
-
0
- DE DENDAT189917D patent/DE189917C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2827895A1 (en) * | 1978-06-24 | 1980-05-14 | Helmut Steinhilber | Printing contact block for data line printer - has profiled block with low friction properties and has mounted channels for adjustable components |
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