DE420834C - Automatic changeover gear for reversing cinematographic demonstration devices - Google Patents

Automatic changeover gear for reversing cinematographic demonstration devices

Info

Publication number
DE420834C
DE420834C DEP47674D DEP0047674D DE420834C DE 420834 C DE420834 C DE 420834C DE P47674 D DEP47674 D DE P47674D DE P0047674 D DEP0047674 D DE P0047674D DE 420834 C DE420834 C DE 420834C
Authority
DE
Germany
Prior art keywords
reversing
cinematographic
automatic changeover
changeover gear
demonstration devices
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
DEP47674D
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.)
Petra AG fuer Elektro Mechanik
Original Assignee
Petra AG fuer Elektro Mechanik
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 Petra AG fuer Elektro Mechanik filed Critical Petra AG fuer Elektro Mechanik
Priority to DEP47674D priority Critical patent/DE420834C/en
Application granted granted Critical
Publication of DE420834C publication Critical patent/DE420834C/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
    • G03B19/00—Cameras
    • G03B19/18—Motion-picture cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Description

Selbsttätiges Umschaltgetriebe; Zum Umsteuern von kinematographischen Vorführungsapparaten.Automatic change gear; For reversing cinematographic Demonstration machines.

Zusatz zum Patent q.17590. Die Erfindung betrifft eine Anwendungsform des selbsttätigen Umschaltgetriebes nach Patent q.17590.. Bekanntlich ist, während der Film bei der Vorführung abrollt, die Lichtquelle eingeschaltet, welche das Bildband durchleuchtet und das Bild auf der Projektionsfläche zur Erscheinung bringt. Wird nun der Film mit der den Gegenstand des Patents q.17590 bildenden Vorrichtung auf Rücklauf umgesteuert, dann ist während dieser Zeit die Lichtquelle ausgeschaltet, es würde also während des Rückrollens die Projektionsfläche unbeleuchtet bleiben.Addition to patent q.17590. The invention relates to an application form of the automatic changeover gear according to patent q.17590 .. is known while the film unrolls during the screening, the light source switched on, which is the illustrated book is illuminated and the image appears on the projection surface. Will now the film with the device forming the subject of patent q.17590 Return reversed, then the light source is switched off during this time, the projection surface would therefore remain unlit while it is being rolled back.

Nach der Erfindung soll diese Zeit für Vorführungszwecke dadurch ausgenutzt werden, daß im Moment der Umsteuerung auf Rücklauf der Kippschalter eine Lichtquelle einschaltet, die ein stehendes Bild auf der Projektionsfläche zum Erscheinen bringt, und die wieder selbsttätig ausgeschaltet wird, sobald der Schalter bei Umsteuerung auf Vorführung zurückkippt.According to the invention, this time is to be used for demonstration purposes be that at the moment of reversing the toggle switch to reverse a light source switches on, which brings a still image to appear on the projection surface, and which is automatically switched off again as soon as the switch is reversed tilts back on demonstration.

Claims (1)

PATENT-ANspRUcH: Selbsttätiges Umschaltgetriebe nach Patent 417590, dadurch gekennzeichnet, daß der Kippschalter bei Umsteuerung auf Rücklauf eine Lichtquelle einschaltet, welche ein stehendes Bild auf der Projektionsfläche zur Erscheinung bringt, und daß diese Lichtquelle wieder ausgeschaltet wird, sobald der Schalter bei Umsteuerung auf Vorführung zum Rückkippen gebracht wird.PATENT CLAIM: Automatic changeover gear according to patent 417590, characterized in that the toggle switch is a light source when reversed to reverse switches on, which shows a still image on the projection surface brings, and that this light source is switched off again as soon as the switch is caused to tip back when reversing to demonstration.
DEP47674D 1924-03-12 1924-03-12 Automatic changeover gear for reversing cinematographic demonstration devices Expired DE420834C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP47674D DE420834C (en) 1924-03-12 1924-03-12 Automatic changeover gear for reversing cinematographic demonstration devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP47674D DE420834C (en) 1924-03-12 1924-03-12 Automatic changeover gear for reversing cinematographic demonstration devices

Publications (1)

Publication Number Publication Date
DE420834C true DE420834C (en) 1925-10-31

Family

ID=7382556

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP47674D Expired DE420834C (en) 1924-03-12 1924-03-12 Automatic changeover gear for reversing cinematographic demonstration devices

Country Status (1)

Country Link
DE (1) DE420834C (en)

Similar Documents

Publication Publication Date Title
DE420834C (en) Automatic changeover gear for reversing cinematographic demonstration devices
DE337095C (en) Device for driving and switching the engine of automatic cinematograph devices
DE426210C (en) Lighting device for photographic display chambers
DE530093C (en) Switching device for automatically changing the light intensity of headlights for motor vehicles
DE403638C (en) Projection apparatus for showing advertisements
DE562642C (en) Device for remote-controlled regulating shift drums and regulating starter with ratchet wheel and pawl
DE903788C (en) Call and signal device for operating personnel
CH131473A (en) Image projection device.
AT105297B (en) Combination of prisms with color filters for the projection of multicolor cinematograms.
DE381890C (en) Method of focusing photographic reproduction devices
AT90954B (en) Turnout signal disc.
DE409620C (en) Automatic coupling for the film switching device on cinematographs
DE436863C (en) Process for eliminating color fringes due to spatial parallax in color cinematography
SU44431A1 (en) Advertising device
CH148184A (en) Image projection device.
Hentschel Ink misting in high speed printing presses
CH111396A (en) Device for achieving optical illusions.
DE1810086U (en) INDEPENDENT IMAGER FOR STILL IMAGES
FR769626A (en) Stretch fabric in the transverse direction for quick closures
FR720229A (en) Apparatus performing the work in no gauze in the making of false selvages
FR592097A (en) Apparatus allowing the weaving of two different weaves on ordinary dobby with a cylinder
CH101734A (en) Device for generating moving advertising images.
CH153988A (en) Illuminated advertising machine.
ES131383A1 (en) New device to keep the arcade of the "jacquard" frames of the knitting machines in tension.
CH540482A (en) Photoelectric brightness indicator