DE463735C - Process for the production of printing blocks - Google Patents

Process for the production of printing blocks

Info

Publication number
DE463735C
DE463735C DES72527D DES0072527D DE463735C DE 463735 C DE463735 C DE 463735C DE S72527 D DES72527 D DE S72527D DE S0072527 D DES0072527 D DE S0072527D DE 463735 C DE463735 C DE 463735C
Authority
DE
Germany
Prior art keywords
printing blocks
production
type
printing
mold
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
DES72527D
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to DES72527D priority Critical patent/DE463735C/en
Application granted granted Critical
Publication of DE463735C publication Critical patent/DE463735C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B1/00—Elements or appliances for hand composition; Chases, quoins, or galleys
    • B41B1/02—Printing letters; Type

Description

Verfahren zur Herstellung von Druckstöcken Bei einer großen Anzahl von Maschinen, z. B. Rechenmaschinen, Registriermaschinen usw., werden Druckstöcke oder Typenräder oder Typentrommeln verwendet, die eine große Anzahl von Druckvorgängen aushalten müssen, ohne daß sie sich dabei merklich abnutzen dürfen. Mit den bisher verwendeten Herstellungsverfahren war es nicht möglich, Druckformen herzustellen, die neben scharf ausgeprägten Druckzeichen gleichzeitig eilte große Haltbarkeit besaßen. Wenn man, wie es vorgeschlagen worden ist, das Druckst.ockmetall, sei es in fester, sei es in plastischer Form, in die Gegenform einpreßt, so wird zwar durch die Gefügeverdichtung eine verhältnismäßig haltbare Oberfläche gewonnen, aber nur dadurch, daß man nicht ganz scharf ausgeprägte Typen in Kauf nehmen mußte. Diese wiederum kann man erhalten, wenn man das Druckstockmaterial in fein verteiltem Zustande in die Gegenform einbringt. Hierzu kann. man z. B. galvanische Verfahren verwenden oder Spritzguß, indem man z. B. nach Schoop oder Metalisator Metall verdampft und den Dampf unter Druck in die Form .einspritzt. Die auf diese Weise hergestellten Druckstöcke sind jedoch weich, so daß die an sich sehr scharf abgebildete Type schon nach verhältnismäßig kurzem Gebrauch ihre guten Eigenschaften verliert.Method of manufacturing printing blocks In the case of a large number of machines, e.g. B. calculating machines, recording machines, etc., are printing blocks or type wheels or type drums that do a large number of printing operations have to endure without being allowed to wear out noticeably. With the so far the manufacturing process used, it was not possible to produce printing forms, the next to sharply pronounced print marks at the same time rushed great durability possessed. If, as has been suggested, the printing pad metal is used, so be it in solid form, be it in plastic form, is pressed into the counter-form, then through the structural compaction gained a relatively durable surface, but only by the fact that one did not have to accept very sharply defined types. These again, one can obtain if the printing block material is in a finely divided state brings in the counter form. Can do this. one z. B. use galvanic processes or injection molding by z. B. after Schoop or metalizer metal evaporated and injects the steam under pressure into the mold. Those made in this way However, printing blocks are soft, so that the type, which is very sharply depicted in itself, is loses its good properties after a relatively short period of use.

Gemäß der Erfindung werden zur Herstellung von Druckstöcken, insbesondere von Typenrädern und Typentrommeln, die beiden Verfahren in der Weise miteinander verbunden, daß das Typenmaterial zunächst in fein verteiltem Zustand, z. B. als Metalldampf, nach einem der bekannten Spritzverfahren oder als galvanischer Niederschlag in die Form eingebracht und danach in dieser Form durch Walzen oder Pressen verdichtet wird. Es wird also einerseits ein sehr scharf ausgeprägtes Zeichen auf dem fertigen Stück erhalten, andererseits aber gleichzeitig infolge der Gefügeverdichtung eine große Haltbarkeit erzielt.According to the invention for the production of printing blocks, in particular of type wheels and type drums, the two procedures in the way with each other connected that the type material is initially in a finely divided state, for. B. as Metal vapor, using one of the known spraying processes or as galvanic precipitation introduced into the mold and then compacted in this form by rolling or pressing will. So on the one hand there will be a very sharp mark on the finished product Piece received, on the other hand, at the same time as a result of the structural compaction great durability achieved.

. Besonders leicht läßt sich die für das Verfahren erforderliche Gefügeverdichtung dann erreichen, wenn die Druckstöcke Kreiszylinder sind, also z. B. Typenräder oder Typentrommeln. Nachdem die--Form mit dem fein verteilten Typenmaterial gefüllt ist, wird in die Achse ein Dorn eingetrieben, wodurch ein sehr kräftiger, nach allen Seiten wirkender Druck auf das Material ausgeübt wird.. The structural compaction required for the process can be particularly easily achieved then achieve when the printing blocks are circular cylinders, so z. B. type wheels or Type drums. After the - mold is filled with the finely divided type material, a mandrel is driven into the axle, making a very powerful one, after all Pressure acting on the sides is exerted on the material.

Claims (1)

PATRNTANSPRUCH: Verfahren zur Herstellung von Druckstöcken, insbesondere Typenrädern oder Typentrommeln, dadurch gekennzeichnet, daß das Typenmetall in fein verteiltem Zustande, z. B. in Dampfform, durch ein Spritzverfahren oder als galvanischer Niederschlag, in die Form eingebracht und hierauf in dieser durch Druckerhöhung, z. B. durch Einwalzen, verdichtet wird.PATENT CLAIM: Process for the production of printing blocks, in particular Type wheels or type drums, characterized in that the type metal in fine distributed state, e.g. B. in vapor form, by a spraying process or as a galvanic Precipitation, introduced into the mold and then in this by increasing the pressure, z. B. is compacted by rolling.
DES72527D 1925-12-05 1925-12-05 Process for the production of printing blocks Expired DE463735C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES72527D DE463735C (en) 1925-12-05 1925-12-05 Process for the production of printing blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES72527D DE463735C (en) 1925-12-05 1925-12-05 Process for the production of printing blocks

Publications (1)

Publication Number Publication Date
DE463735C true DE463735C (en) 1928-08-02

Family

ID=7503268

Family Applications (1)

Application Number Title Priority Date Filing Date
DES72527D Expired DE463735C (en) 1925-12-05 1925-12-05 Process for the production of printing blocks

Country Status (1)

Country Link
DE (1) DE463735C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740311C (en) * 1936-07-21 1943-10-18 Oswald Fidel Wyss Dr Process for the development of usable gases, mists, steams and the like like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740311C (en) * 1936-07-21 1943-10-18 Oswald Fidel Wyss Dr Process for the development of usable gases, mists, steams and the like like

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