DE332366C - Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices - Google Patents

Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices

Info

Publication number
DE332366C
DE332366C DE1920332366D DE332366DD DE332366C DE 332366 C DE332366 C DE 332366C DE 1920332366 D DE1920332366 D DE 1920332366D DE 332366D D DE332366D D DE 332366DD DE 332366 C DE332366 C DE 332366C
Authority
DE
Germany
Prior art keywords
picture
drive
ratchet wheel
window
adjust
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
DE1920332366D
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.)
CURT REYHER
Original Assignee
CURT REYHER
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 CURT REYHER filed Critical CURT REYHER
Application granted granted Critical
Publication of DE332366C publication Critical patent/DE332366C/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms
    • G03B21/44—Mechanisms transmitting motion to film-strip feed; Mechanical linking of shutter and intermittent feed
    • G03B21/46—Mechanisms transmitting motion to film-strip feed; Mechanical linking of shutter and intermittent feed affording adjustment for framing

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Einstellen des Bildbandes im Fenster eines Reihenbildapparates durch Drehen des Fortschaltgliedes. Vorrichtungen S dieser Art, bei denen zwischen das Schaltrad und dessen Antrieb eine Einrichtung zum Verdrehen beider gegeneinander eingeschaltet ist, sind bekannt. Die \rerdrehung wird hierbei dadurch erreicht, daß in einem Schraubenschlitz des einen Teiles ein Stift des andern Teiles geführt und eine Längsverschiebung beider Teile möglich ist. Hiergegen unterscheidet sich die neue Vorrichtung dadurch, daß die Achse des Schaltrades und das Antriebsglied übereinandergeschobene Verlängerungshülsen tragen; diese Hülsen sind gegeneinander verschiebbar und stehen längs ihrer gemeinschaftlichen Achse unter Federdruck. Bei der Erfindung ist das Schaltrad leicht auswechselbar und doch fest mit der Achse verbunden, und die Kupplung mit dem Antriebsglied erfolgt durch eine geschlossene Hülse, welche gleichzeitig staubdichter Abschluß und Ölbehälter ist.The invention relates to a device for setting the picture band in the window of a row picture apparatus by rotating the indexing element. Devices S of this type, in which a device for rotating the two against each other is switched between the ratchet wheel and its drive, are known. The \ r erdrehung is thereby achieved in that guided in a helical slot of one part, a pin of the other part, and a longitudinal displacement of both parts is possible. In contrast, the new device differs in that the axis of the ratchet wheel and the drive member carry extension sleeves pushed one on top of the other; these sleeves can be displaced relative to one another and are under spring pressure along their common axis. In the invention, the ratchet wheel is easily exchangeable and yet firmly connected to the axle, and the coupling with the drive member is carried out by a closed sleeve, which is at the same time a dust-tight seal and an oil container.

Ein Ausführungsbeispiel ist in der Zeichnung im teilweisen- Längsschnitt dargestellt. Die. Achse α ist in der Gestellplatte b drehbar gelagert und mit der Fortschalttrommel c fest verbunden. Auf der Achse α dreht sich lose das Antriebselement d, welches mit der hülsenartigen Verlängerung e versehen ist und durch den Ring f an seitlicher Verschiebung verhindert wird. Die Achse α ist an dieser Seite ausgebohrt, so daß eine der Verlängerung des Antriebselementes ähnliche Hülse g entsteht. Jede dieser beiden übereinander drehbar angeordneten Hülsen ist mit zwei oder mehreren einander zugeordneten schraubenförmigen Schlitzen h, i versehen, welche in den beiden Hülsen gleiche, aber entgegengesetzte Steigungswinkel haben. Über der Hülse e ist die geschlossene Hülse k angeordnet, welche durch die Stifte Z Antriebselement d und Schaltradachse α kuppelt und durch die Nut m in bekannter Weise in ihrer Längsrichtung verschoben werden kann. Durch das Verschieben der Hülse k wird das "Schaltrad c gegen das Antriebselement d verdreht und dadurch die Bildeinstellung bewirkt. Der durch die schrägen Schlitze auf die Hülse k ausgeübte achsial gerichtete Druck wird durch die Schraubenfeder η ausgeglichen, so daß die Verschiebung nach beiden Richtungen mit gleicher Kraft ausführbar ist und der Verschleiß des in der Nut m schleifenden Ringes nur gering ist und durch Anordnung von Kugeldrucklagern noch weiter herabgesetzt werden kann. Die Stifte I können auch durch passend geformte Gleitstücke oder Rollen ersetzt werden. Die Hülse k wird teilweise mit Öl gefüllt und besitzt bei ο eine kleine Bohrung, durch welche bei dem Verschieben der Hülse k die Luft entweichen bzw. eintreten kann.An embodiment is shown in the drawing in partial longitudinal section. The. Axis α is rotatably mounted in the frame plate b and firmly connected to the indexing drum c. The drive element d, which is provided with the sleeve-like extension e and is prevented from lateral displacement by the ring f, rotates loosely on the axis α. The axis α is drilled out on this side, so that a sleeve g similar to the extension of the drive element is formed. Each of these two sleeves, which are rotatably arranged one above the other, is provided with two or more mutually associated helical slots h, i which have the same but opposite pitch angles in the two sleeves. The closed sleeve k is arranged above the sleeve e ; it couples the drive element d and the ratchet wheel axis α through the pins Z and can be displaced in its longitudinal direction through the groove m in a known manner. By shifting the sleeve k , the ratchet wheel c is rotated against the drive element d, thereby causing the image setting. The axially directed pressure exerted on the sleeve k through the inclined slots is compensated for by the helical spring η so that the shift in both directions with The same force can be carried out and the wear of the ring sliding in the groove m is only slight and can be further reduced by arranging ball thrust bearings. The pins I can also be replaced by suitably shaped sliding pieces or rollers. The sleeve k is partially filled with oil and has at ο a small hole through which the air can escape or enter when the sleeve k is moved.

Claims (1)

Patent-Anspruch :Patent claim: Zwischen das Schaltrad und dessen Antrieb eingeschaltete Vorrichtung zum Verstellen des Bildbandes im Fenster vonAdjustment device connected between the ratchet wheel and its drive of the illustrated book in the window of !Reihenbilderapparaten, dadurch gekenn- einander zugeordneten, schraubenförmigen! Series image devices, thus identically assigned, helical zeichnet, daß das Antriebsglied und die Schlitzen einerseits und längsverschieb-records that the drive member and the slots on the one hand and longitudinally displaceable Schaltradachse hülsenartige Verlange- baren Stiften anderseits bestehende, teil-Ratchet axle sleeve-like requestable pins on the other hand existing, partially rungen haben, in denen die an sich be- weise mit öl gefüllte Verdrehungseinricli-in which the twisting mechanism, which is evidently filled with oil, kannte, aus entgegengesetzt gerichteten, tung untergebracht ist. "knew, from opposing directions, tung is housed. " Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings. HgHMN. GEnRUCKT IN DEU REICHSDRUCK EIiEt.HgHMN. PRINTED IN DEU REICHSDRUCK EIiEt.
DE1920332366D 1920-06-01 1920-06-01 Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices Expired DE332366C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE332366T 1920-06-01

Publications (1)

Publication Number Publication Date
DE332366C true DE332366C (en) 1921-01-31

Family

ID=6202828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920332366D Expired DE332366C (en) 1920-06-01 1920-06-01 Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices

Country Status (1)

Country Link
DE (1) DE332366C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458346A (en) * 1946-06-22 1949-01-04 Charlin Andre Marie Bernard Picture centering mechanism for motion-picture projection apparatus
DE1084566B (en) * 1958-05-06 1960-06-30 Zeiss Ikon Ag Adjustment element for adjusting the image line on motion picture projectors, preferably on cine projectors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458346A (en) * 1946-06-22 1949-01-04 Charlin Andre Marie Bernard Picture centering mechanism for motion-picture projection apparatus
DE1084566B (en) * 1958-05-06 1960-06-30 Zeiss Ikon Ag Adjustment element for adjusting the image line on motion picture projectors, preferably on cine projectors

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