DE508133C - Device for holding the flexible negative to be copied on a curved rigid base plate - Google Patents

Device for holding the flexible negative to be copied on a curved rigid base plate

Info

Publication number
DE508133C
DE508133C DER78877D DER0078877D DE508133C DE 508133 C DE508133 C DE 508133C DE R78877 D DER78877 D DE R78877D DE R0078877 D DER0078877 D DE R0078877D DE 508133 C DE508133 C DE 508133C
Authority
DE
Germany
Prior art keywords
base plate
copied
holding
edge
rigid base
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
DER78877D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DER78877D priority Critical patent/DE508133C/en
Application granted granted Critical
Publication of DE508133C publication Critical patent/DE508133C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
    • G03B27/20—Maintaining or producing contact pressure between original and light-sensitive material by using a vacuum or fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Projection-Type Copiers In General (AREA)

Description

Die Erfindung hat eine Vorrichtung zum Festhalten des zu kopierenden biegsamen. Negativs auf eimer gebogenen starren Grundplatte zum Gegenstand.The invention has a device for holding the pliable material to be copied. Negatives on a rigid base plate bent in a bucket to the object.

Das kennzeichnende Merkmal besteht darin, daß ringsum am Rande der Grundplatte mit einer Luftabsaugvorrichtung verbundene kleine Löcher vorgesehen sind, wie sie an sich bei Vakuumkopiervorrichtungen' anderer Art ίο bekannt sind, und daß die Löcher so weit vom Rande der Grundplatte entfernt sind, daß das Negativ zwischen Lochreihe und Plattenrand durch Klebern oder sonstige Befestigung abgedichtet werden kanmThe distinguishing feature is that all around the edge of the base plate with an air suction device connected small holes are provided as they are in vacuum copiers' of another kind ίο are known, and that the holes so far from The edge of the base plate has been removed so that the negative is between the row of holes and the edge of the plate Can be sealed by glueing or other fastening

J-5 Diese Vorrichtung gibt die Möglichkeit, dünne Druckplatten verwenden zu können, um sie dann an Stelle starrer Bildträger, d. h. schwerer .Druckplatten, auf die Druckmaschine aufzuspannen,. Es ist also die Handiao habung bedeutend vereinfacht und der ganze Prozeß kann schneller vor sich gehen.J-5 This device enables to be able to use thin printing plates in order to then replace them with rigid image carriers, d. H. harder to clamp printing plates on the printing machine. So it is the handiao The process is much easier and the whole process can go faster.

Auf der Zeichnung ist eine beispielsweise Ausführungsformi des Erfindungsgegenistandes veranschaulicht, und zwar zeigt
Abb. ι eine Ansicht der Druckplatte undIn the drawing, an example embodiment of the subject matter of the invention is illustrated, namely shows
Fig. Ι a view of the pressure plate and

Abb. 2 einen Querschnitt derselben mit daraufliegendem Negativ.Fig. 2 shows a cross section of the same on top of the negative.

α ist die Platte, die ringsum an ihrem Rand kleine Löcher b aufweist. Der Abstand dieser Löcher b vom Rand der Platte α ist so bemessen, daß zwischen Löcher und Plattenrand das Negativ beispielsweise durch Kleben oder sonstwie befestigt werden kann. Die Abb. 2 zeigt z. B. das Negativ c, das durch Kleben am Rand bei d auf 'die Platte α aufgebracht ist. Dicht neben dem Klebrand liegen, nach innen die erwähnten Löcher b. Wird unter der Platte das an- sieh bekannte Vakuum erzeugt, so wird das Negativ ganz platt auf die Oberfläche der Platte α gesaugt. Es kann nun ganz einwandfrei kopiert werden. α is the plate that has small holes b all around on its edge. The distance between these holes b from the edge of the plate α is dimensioned so that the negative can be attached, for example by gluing or otherwise, between the holes and the edge of the plate. Fig. 2 shows z. B. the negative c, which is applied by gluing on the edge at d on 'the plate α . Lying close to the glue line, the holes mentioned on the inside b. If the well-known vacuum is generated under the plate, the negative is sucked completely flat onto the surface of the plate α. It can now be copied perfectly.

Claims (1)

Patentanspruch ■.Claim ■. Vorrichtung zum Festhalten, des zu kopierenden biegsamen Negativs auf einer gebogenen starren Grundplatte, dadurch gekennzeichnet, daß ringsum ami Rande der Grundplatte (α) mit einer Luftabsaugevorrichtung verbundene kleine Löeher (b) vorgesehen sind, wie sie an sich bei Vakuumkopiervorrichtungen anderer Art bekannt sind, und daß die Löcher (b) so weit vom Rande- der Grundplatte (a) entfernt sind, daß das Negativ (c) zwischen Lochreihe und Plattenrand durch Kleben oder sonstige Befestigung abgedichtet werden, kann.Device for holding the flexible negative to be copied on a curved rigid base plate, characterized in that small holes (b) connected to an air suction device are provided all around the edge of the base plate (α), as are known per se in other types of vacuum copying devices, and that the holes (b) are so far removed from the edge of the base plate (a) that the negative (c) can be sealed between the row of holes and the edge of the plate by gluing or other fastening.
DER78877D Device for holding the flexible negative to be copied on a curved rigid base plate Expired DE508133C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER78877D DE508133C (en) Device for holding the flexible negative to be copied on a curved rigid base plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER78877D DE508133C (en) Device for holding the flexible negative to be copied on a curved rigid base plate

Publications (1)

Publication Number Publication Date
DE508133C true DE508133C (en) 1930-09-24

Family

ID=7415902

Family Applications (1)

Application Number Title Priority Date Filing Date
DER78877D Expired DE508133C (en) Device for holding the flexible negative to be copied on a curved rigid base plate

Country Status (1)

Country Link
DE (1) DE508133C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940867C (en) * 1951-12-30 1956-03-29 Heinrich Renck Process for the production of gravure forms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940867C (en) * 1951-12-30 1956-03-29 Heinrich Renck Process for the production of gravure forms

Similar Documents

Publication Publication Date Title
AR222236A1 (en) DEVICE AND METHOD FOR DRAINING AND CLEANING THE FELT USING POSITIVE PRESSURE
DE508133C (en) Device for holding the flexible negative to be copied on a curved rigid base plate
CH547882A (en) DEVICE FOR A LOOM FOR INSERTING WEFT FEET.
RO81046B (en) Planting container
DE539380C (en) Running target with target figures made of clay or similar materials
DE595590C (en) Device for separating the stones from potatoes by means of swinging mounted flaps loaded by a weight
IT8068541A0 (en) PROCEDURE AND DEVICE FOR HUMIDIFYING BOILED RICE
DE959615C (en) Reproduction device for the diffusion process
DE525995C (en) Egg sorter
DE563741C (en) Frame, made in all parts of rustproof metal, for printing three- and four-color negatives in register on a print carrier, e.g. B. paper
IT7827231A0 (en) IMPROVEMENTS TO DOBBIES FOR THE TEXTILE INDUSTRY.
DE462331C (en) Copy frame for copying text or images onto convex cylindrical surfaces
DE368624C (en) Mask for the photographic copying process
DE528089C (en) Copying machine for the simultaneous copying of two negative film strips that belong together on a double-coated positive film strip
AT274569B (en) Process for the mass marking of pressure-sensitive packaging surfaces
DE319957C (en) Spring-loaded pressure plate for gluing on shoe stars
DE699518C (en) Abrasive cloth
DE601998C (en) Device for printing on workpieces made of porcelain
DE682948C (en) Device for the photomechanical copying of patterns on printing rollers
AT349236B (en) READER FOR MAKING A MICRO IMAGE ON AN OMICROFICHE READABLE
FI790861A (en) ELASTISK FILT ELLER VIRA FOER EN PRESS I EN PAPPERSMASKIN
DE746335C (en) Pressing cloth for devices for making blueprints
DE360299C (en) Recording pen for speech equipment
DE1635364U (en) DEVICE FOR TRANSPARENT ACCOUNTING.
DE1765798U (en) FILTER DISC FOR TELEVISION RECEIVER.