DE244963C - - Google Patents
Info
- Publication number
- DE244963C DE244963C DENDAT244963D DE244963DA DE244963C DE 244963 C DE244963 C DE 244963C DE NDAT244963 D DENDAT244963 D DE NDAT244963D DE 244963D A DE244963D A DE 244963DA DE 244963 C DE244963 C DE 244963C
- Authority
- DE
- Germany
- Prior art keywords
- printing plate
- characters
- section
- hollow cone
- pressing
- 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
- 239000002184 metal Substances 0.000 description 3
- 206010042674 Swelling Diseases 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002522 swelling Effects 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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/38—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for embossing, e.g. for making matrices for stereotypes
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es ist vorgeschlagen worden, zum Pressen erhabener Buchstaben Stempel zu verwenden, die am unteren Ende hohlkegelförmig ausgebildet sind und am Boden des Hohlraumes das Schriftzeichen tragen. Zum Eindrücken derartiger Stempel in die übliche ebene Metallplatte ist aber ein erheblicher Kraftaufwand erforderlich, der um so größer sein muß, je mehr die Schnittkanten der Typen abgenutzt werden, was bei dem Eindrücken in das harte Metall natürlich sehr schnell eintritt. Um diesen Übelstand zu vermeiden, wird gemäß der Erfindung die Druckplatte mit Zeilenleisten von keilförmigem Querschnitt oder mit einzelnen kegelstumpfförmigen Erhöhungen versehen. Beim Aufprägen der Schriftzeichen auf eine solche Druckplatte ergibt sich noch der Vorteil, daß jedes Zeichen scharf erhalten wird, und daß sämtliche Zeichen in einer Ebene liegen, während beim Eindrücken der Hohltypen in die üblichen Druckplatten mit geschlossener Prägefläche Verbeulungen und Auftreibungen nicht zu vermeiden sind, da das durch die Kanten des Prägestempels aus der Platte herausgeschnittene Metall sich nicht so zusammenpressen läßt, daß es genau in den Hohlraum des Stempels paßt.It has been proposed to use stamps for pressing raised letters, which are hollow cone-shaped at the lower end and at the bottom of the cavity bear the character. For pressing such stamps into the usual flat metal plate but a considerable amount of force is required, which must be all the greater, the more the cut edges of the types are worn, what happens when they are pressed into the hard metal occurs naturally very quickly. In order to avoid this inconvenience, according to the invention, the printing plate with line strips of wedge-shaped cross-section or with provided individual frustoconical elevations. When the characters are imprinted on Such a printing plate still has the advantage that every character is kept sharp and that all characters lie in one plane, while pressing the Hollow types in the usual printing plates with closed embossing surface dents and Excessive swellings cannot be avoided, as this is characterized by the edges of the die The metal cut out of the plate cannot be pressed together in such a way that it is accurate fits into the cavity of the punch.
Auf der Zeichnung ist der Erfindungsgegenstand schematisch dargestellt.The subject of the invention is shown schematically in the drawing.
Fig. ι ist ein Schnitt durch eine Zeilenleiste α und durch das untere Ende eines Typenstempels b: Fig. Ι is a section through a row bar α and through the lower end of a type stamp b:
Fig. 2 zeigt eine Zeilenleiste in Draufsicht.Fig. 2 shows a row bar in plan view.
Fig. 3 ist eine Draufsicht auf eine einzelne kegelstumpfförmige Erhöhung c, auf die der am unteren Ende des Typenstempels vorhandene Hohlkegel paßt.Fig. 3 is a plan view of a single frustoconical elevation c on which the hollow cone present at the lower end of the type stamp fits.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE244963C true DE244963C (en) |
Family
ID=503958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT244963D Active DE244963C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE244963C (en) |
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0
- DE DENDAT244963D patent/DE244963C/de active Active
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