DE2508040A1 - Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive - Google Patents

Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive

Info

Publication number
DE2508040A1
DE2508040A1 DE19752508040 DE2508040A DE2508040A1 DE 2508040 A1 DE2508040 A1 DE 2508040A1 DE 19752508040 DE19752508040 DE 19752508040 DE 2508040 A DE2508040 A DE 2508040A DE 2508040 A1 DE2508040 A1 DE 2508040A1
Authority
DE
Germany
Prior art keywords
endless
writing
daylight
hand
typewriting
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.)
Pending
Application number
DE19752508040
Other languages
German (de)
Inventor
Geb Kloeble Maria Reuter
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
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 Individual filed Critical Individual
Priority to DE19752508040 priority Critical patent/DE2508040A1/en
Publication of DE2508040A1 publication Critical patent/DE2508040A1/en
Pending 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In General (AREA)

Abstract

The daylight projector has an endless writing surface strap consisting of foil, paper or some similar material suitable for the purpose upon which may be placed or inscribed the material to be projected has a removal device by means of which unnecessary or used texts may be removed from the endless strip which can be operated selectively as required. The writing strip can be motor or hand wound, preferably by means of a combination of the two winding processes. The surface underlying the endless strip may have various patterns of lines, squares etc. to assist in good data or diagram presentation.

Description

@etr.: Tagealichtprojektor mit selbstreinigender @@dloschn@ibband.@etr .: Daylight projector with self-cleaning @@ dloschn @ ibband.

bie mir bisher bekannten Tageslichtprojektoren vervenden einzelre klarnichtfolienblätter oder spulen die Klarsichtfolie von einer Rolle ab, wenn während des Vortrages die Texte genchrieben werden. Ist die Rolle zu Ende so ent -steht Keitverlust, der besonders ärgerlich während eines Vortrnages von den Zuhörern vermerkt wird. I use overhead projectors known to me so far cling film sheets or unwinding the cling film from a roll if during of the lecture the texts are written. When the role comes to an end Loss of lethargy, which is particularly annoying noted by the audience during a lecture will.

Obige Erfindung soll dem abhelfen: Die Texte bezw. DArstellungen werden auf einem endlo@en, breiten Rand (aus Folie, Papier oder einem ähnlichen dafür geeigneten Material) aufgezeichnet. Der Projektor ist mit einer auf Junsch des Vortragenden abschaltbaren Löschvorrichtung ausgerüstet, die nicht mehr benötigte Texte oder Darstelllungen bei der Bewegung des Schreibbander entfernt. Die @ewegung des Endlosbandes erfolgt von Hand oder bei größeren @eräten motorisch bezw. durch eine Kombination von beiden.The above invention is intended to remedy this: The texts respectively. D representations will be on an endless, wide border (made of foil, paper or a similar suitable Material) recorded. The projector is with one on Junsch of the lecturer can be switched off, the texts or texts that are no longer required Removed images of the movement of the writing ribbon. The @movement of the endless belt takes place by hand or with larger @ devices motorized or. by a combination from both.

Das Löschgerät arbeitet je nach Einsatzzweck mit feststchenden oder motorisch bezw. von Hand angetriebenen Reinigungswerkzeugen wie z.P. Schwämmen, Bürsten o.ä. Es reinigt trocken oder unter Anwendung von Flüssigkeiten, Wasser etc.The extinguisher works depending on the purpose with fixed or motor or hand-operated cleaning tools such as Sponges, Brushes etc. It cleans dry or using liquids, water, etc.

Claims (5)

@etr.: Tagealishi@rojektor mit @elbatreini gendem Endlos@etr .: Tagealishi @ rojektor with @elbatreini ing endless @ e h u @ @ a n @ p r ü e h e 1.) Tagealichtprojektor, der mit einem beschriftbaren Endl@@hand aus Telie, Papier oder einem anderen dafür geeigreton Material ausgerü@tet ist, auf das die zu projezierenden @chniften, Dan@tellungen, Texte aufgebracht werden. @ e h u @ @ a n @ p r ü e h e 1.) Daylight projector that works with a Endl @@ hand that can be written on from Telie, paper or another suitable for this Material is equipped on which the to be projected @chnifts, dan @ notices, Texts are applied. 2.) Tagealichtprojektor nach Anspruch 1, der mit einem Löschgerät verschen ist, das nicht mehr benötigte Texte oder Darstellungen auf dem Endlosband löscht. Das Löschgerät kann wunschgemäß abgeschlatet werden, um wieder benötigte Texte bezw. Darstellungen nochmals verfügbar zu machen. 2.) daylight projector according to claim 1, with an extinguisher is giving away the text or images that are no longer needed on the endless belt clears. The extinguisher can be switched off as required in order to be able to recover Texts resp. To make representations available again. 3.) Tageslichtprojektro nach Anspruch 1 dadurch gekennzeichnet daß das Hndlos-Schreibband von Hand oder motorisch bezw. 3.) overhead projector according to claim 1, characterized in that the hand-held writing tape by hand or motorized respectively. duch eine Kombination von beiden bewegt werden kann, um den für die Aufzeichnungen benötigter, Raum zu schaffen. by a combination of both can be moved to the for the Records needed to create space. 4.) Tagealichtprojektor dadurch gekennzeichnet, daß das Endlos-Schreihband bei seiner Bewgung das unter 2 genannte Löschgerät durchläuft. 4.) daylight projector, characterized in that the endless writing belt The extinguishing device mentioned under 2 passes through when it is moved. 5.) Tagealichtprojektor nach Anspruch 1 dadurch gekennzeichnet, daß die Schreibunterlage ausgewechselt werden kann gegen eine solche mit Linien-, Karo - oder einem anderen Muster, um das Schreiben bezw. Zeichnen zu erleichtern. 5.) daylight projector according to claim 1, characterized in that the writing pad can be exchanged for one with lines, diamonds - or another pattern to make the writing or To make drawing easier.
DE19752508040 1975-02-25 1975-02-25 Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive Pending DE2508040A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752508040 DE2508040A1 (en) 1975-02-25 1975-02-25 Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752508040 DE2508040A1 (en) 1975-02-25 1975-02-25 Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive

Publications (1)

Publication Number Publication Date
DE2508040A1 true DE2508040A1 (en) 1976-09-02

Family

ID=5939754

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752508040 Pending DE2508040A1 (en) 1975-02-25 1975-02-25 Self cleaning daylight projection system - has endless typewriting surface with writing removal devices of selective operation with combination strip drive

Country Status (1)

Country Link
DE (1) DE2508040A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738669A1 (en) * 1997-09-04 1999-03-11 Oliver Horsky Automatic cleaner for sheets, especially overhead projector sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738669A1 (en) * 1997-09-04 1999-03-11 Oliver Horsky Automatic cleaner for sheets, especially overhead projector sheets

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