AT75767B - Plate for the projection of lettering. - Google Patents

Plate for the projection of lettering.

Info

Publication number
AT75767B
AT75767B AT75767DA AT75767B AT 75767 B AT75767 B AT 75767B AT 75767D A AT75767D A AT 75767DA AT 75767 B AT75767 B AT 75767B
Authority
AT
Austria
Prior art keywords
plate
projection
lettering
desc
beeswax
Prior art date
Application number
Other languages
German (de)
Inventor
Karl Hajek
Original Assignee
Karl Hajek
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 Karl Hajek filed Critical Karl Hajek
Application granted granted Critical
Publication of AT75767B publication Critical patent/AT75767B/en

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
  • Surface Treatment Of Glass (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Platte zur Projektion von Schriftzügen. 



   Die vorliegende Erfindung dient dazu, Schriften, Zeichnungen usw. in der Phase ihrer Entstehung zu projizieren, wodurch die Aufmerksamkeit des   Zuschauera   in höherem   urate   geweckt wird. 
 EMI1.1 
 welche die Schrift aufgetragen wurde, was den Nachteil zur Folge hat, dass die betreffende Platte durch das Abreiben leicht beschädigt worden kann. 



   Dieser Umstand erschwert nicht nur die erste sondern macht auch eine wiederholte Benutzung der Platte unmöglich. Um diesem Übelstande abzuhelfen, die Platten im voraus vorbereiten und dieselben   unter allen Umständen benutzen zu können, wird   nach der   Kr-   findung die Glasplatte mit einer Mischung von Asphalt, Bienenwachs und Russ-am besten zu gleichen   Teilen - Überzogen, wodurch   die   Projektioneptatte   einerseits dauerhaft wird, andererseits aber dem Eindringen des schreibenden Stiftes keinen Widerstand entgegensetzt. Die benutzten Platten können auch zur weiteren Verwendung aufbewahrt werden. 



   Die Projektion geschieht auf folgende Weise :
Aus der starken Lichtqnelle B werden die Strahlen mittels eines Hohlspiegels   A   und der   Linse   auf die   dunkle Projektionsplatte P   in paralleler Richtung geworfen. 



  Mit   Hilfe   eines scharfen Stiftes wird die für das   Licht undurchdringliche Schichte ab-   geschabt und so die Schrift, Zeichnungen und dgl. nach und nach hergestellt.   Durci dit   auf solche Weise durchsichtig gewordenen SteHen dringt das Licht auf den   Spiegel N'   und seine Strahlen werden wieder in paralleler Richtung durch die biconvexe   Linse . j   auf die weisse vertikale Wand   D   geworfen und so den Zuschauern sichtbar gemacht. Wenn   man   unter die dunkle Platte eine farbige Glasplatte einschaltet, erscheint auch die Zeichnung farbig. Wenn man in   F,   eine undurchsichtige Platte (z.

   B. aus Holz) einschiebt. kann man die auf der Platte l'schon früher gemachte Zeichnung nach und nach erscheinen lassen. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Plate for the projection of lettering.



   The present invention is used to project writings, drawings, etc. at the stage of their creation, thereby attracting the attention of the viewer at a higher rate.
 EMI1.1
 which the writing was applied, which has the disadvantage that the plate in question can easily be damaged by rubbing.



   This circumstance not only complicates the first but also makes repeated use of the plate impossible. In order to remedy this inconvenience, to prepare the plates in advance and to be able to use them under all circumstances, the glass plate is coated with a mixture of asphalt, beeswax and soot - ideally in equal parts - after the invention, making the projection plate permanent is, on the other hand, offers no resistance to the penetration of the writing pen. The used plates can also be stored for further use.



   The projection is done in the following way:
From the strong light source B, the rays are thrown onto the dark projection plate P in a parallel direction by means of a concave mirror A and the lens.



  With the help of a sharp pen, the layer that is impermeable to light is scraped off and the writing, drawings and the like are gradually produced. Through the stand which has become transparent in this way, the light penetrates the mirror N 'and its rays are again in a parallel direction through the biconvex lens. j thrown onto the white vertical wall D and thus made visible to the audience. If you insert a colored glass plate under the dark plate, the drawing also appears in color. If in F, an opaque plate (e.g.

   B. made of wood). the drawing made earlier on the plate can gradually appear.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Mit einem undurchsichtigen Überzug versehene Platte zur Projektion von Schriftzügen oder dgl. während ihrer Entstehung, dadurch gekennzeichnet, dass der Überzug aus einer Mischung von Asphalt. Bienenwachs und Russ besteht, zum Zwecke, eine Beschädigung der fur die Vorführung vorbereiteten Platten zu verhindern und die weitere Verwendung EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Plate provided with an opaque coating for the projection of lettering or the like. During its creation, characterized in that the coating consists of a mixture of asphalt. Beeswax and soot are used to prevent damage to the panels prepared for the demonstration and to prevent further use EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT75767D 1914-06-15 1914-06-15 Plate for the projection of lettering. AT75767B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT75767T 1914-06-15

Publications (1)

Publication Number Publication Date
AT75767B true AT75767B (en) 1919-03-10

Family

ID=3597449

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75767D AT75767B (en) 1914-06-15 1914-06-15 Plate for the projection of lettering.

Country Status (1)

Country Link
AT (1) AT75767B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095003B (en) * 1955-09-12 1960-12-15 Fenske Fedrick & Miller Inc Recording and display device
US4735499A (en) * 1983-11-28 1988-04-05 Fuji Photo Film Co., Ltd. Film carrier support mechanism for film projector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095003B (en) * 1955-09-12 1960-12-15 Fenske Fedrick & Miller Inc Recording and display device
US4735499A (en) * 1983-11-28 1988-04-05 Fuji Photo Film Co., Ltd. Film carrier support mechanism for film projector

Similar Documents

Publication Publication Date Title
DE691858C (en) Process for producing the explanatory texts for the images on finished cinematographic positive films
DE291704C (en)
DE463740C (en) Writing board for the projection of writing in transmitted light
DE2822443C2 (en) Planning element made of transparent, smooth-surfaced, soft adhesive film
DE575236C (en) Luminous signs
DE706228C (en) Copier
DE583822C (en) Carbon paper made of clear or translucent paper
DE3146962A1 (en) Writing board
AT146364B (en) Process for producing the explanatory texts for the images on cinematographic films.
DE477168C (en) Process for the production of cartographic print samples
DE445424C (en) Advertising sign for day and night advertising
DE1145192B (en) Process for the production of multicolor flat prints intended for viewing against a white or light-colored base
CH254263A (en) Carriers for entering reproducible drawings and methods of making such a carrier.
DE892112C (en) Process for the production of white paper that is resistant to erasure and washing or other writing and drawing surfaces
DE3751464T2 (en) Display card for numerical information.
DE1597698B1 (en) Mask for covering images to be reproduced
DE540648C (en) Illuminated sign
DE375910C (en) Process for the production of colored banners, especially for advertising purposes
DE262098C (en)
DE7533575U (en) Fluorescent letter or similar symbol
DE637413C (en) Set up on banners with artificial lighting to achieve three-dimensional images
DE866604C (en) Procedure for the transfer of opaque drawings by contact copy and material for carrying out the procedure
DE546127C (en) Further development of the process for matting cellulose ester films for photographic purposes
AT152356B (en) Screen, especially for gravure printing technology and process for its production.
DE2649982A1 (en) Composite drawing sheet system - with surface for easy inscription or painting and erasure