DE322225C - Switching disk for the Maltese cross - Google Patents
Switching disk for the Maltese crossInfo
- Publication number
- DE322225C DE322225C DENDAT322225D DE322225DD DE322225C DE 322225 C DE322225 C DE 322225C DE NDAT322225 D DENDAT322225 D DE NDAT322225D DE 322225D D DE322225D D DE 322225DD DE 322225 C DE322225 C DE 322225C
- Authority
- DE
- Germany
- Prior art keywords
- maltese cross
- switching disk
- balls
- disk
- rollers
- 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
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
- G03B1/00—Film strip handling
- G03B1/18—Moving film strip by means which act on the film between the ends thereof
- G03B1/38—Moving film strip by means which act on the film between the ends thereof embodying Geneva motion, e.g. Maltese-cross gearing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
• Als Schaltscheibe für das Malteserkreuz bei Kinematographen ist bisher eine gedrehte Scheibe angebracht, auf deren Kante das Malteserkreuz nach der jedesmaligen Drehung aufsteht. Bei einem großen Malteserkreuz ist die Reibungsfläche ziemlich groß, was bei Verwendung von dickem Öl bedeutenden Widerstand verursacht. Auch erfolgt die Abnutzung in den meisten Fällen schnell, da bei großen• Supplied as a switching disk for the Maltese cross Up to now, cinematographs have been fitted with a rotated disk with the Maltese cross on the edge gets up after each turn. When there is a large Maltese cross the friction surface is quite large, which results in significant resistance when using thick oil caused. In most cases, too, wear and tear occurs quickly, since large ones
ίο Malteserkreuzen gewöhnlich eine Messingscheibe verwendet wird. Um die Reibung und Abnutzung zu verringern, liegen gemäß der Erfindung um die Scheibe herum Kugeln oder Rollen, die sich an Zapfen bewegen; die Kugeln werden wie bei Kugellagern durch Deckel mit Rillen festgehalten.ίο Maltese cross usually a brass disc is used. In order to reduce friction and wear, according to the invention around the disc balls or rollers moving on pins; the balls are held in place by covers with grooves, as is the case with ball bearings.
Die Rollen und Kugeln sind gehärtet, laufen auf gehärteten Scheiben und nutzen sich. dadurch sehr wenig ab.The rollers and balls are hardened, run on hardened discs and use themselves. therefore very little.
Die Reibung des Malteserkreuzes auf den Rollen oder Kugeln ist verschwindend klein. Zum Schmieren kann selbst dickes öl oder Fett verwendet werden; es ist ein Schmieren nur selten notwendig, und nicht wie bisher jeden Tag.The friction of the Maltese cross on the rollers or balls is negligible. Even thick oil or Fat are used; it's a smear only rarely necessary and not every day as before.
Eine Ausführungsform der Erfindung ist in der Zeichnung dargestellt. Fig. 1 und 3 zeigen eine Aufsicht mit abgenommener Deckplatte, Fig. 2 und 4 Schnitte nach Fig. 1 und 3, Fig. 5 die Deckplatte zur Scheibe (Fig. 1).An embodiment of the invention is shown in the drawing. Figures 1 and 3 show a plan view with the cover plate removed, FIGS. 2 and 4 sections according to FIGS. 1 and 3, Fig. 5 the cover plate for the disc (Fig. 1).
Um die Scheibe α sind gleich^einem Kugellager Kugeln δ gelagert. Auf beiden Seiten der Scheibe α sind Deckplatten c und d, die mit Rillen h (Fig. 5) versehen sind, befestigt, so daß sie das Herausfallen der Kugeln verhindern (Fig. 2). Beim Gleiten des Malteserkreuzes g über die Kugeln δ werden diese mitbewegt. Der Schaltzapfen i, der das Malteserkreuz g dreht, ist ebenfalls, und zwar in bekannter Weise, als bewegliche. Rolle ausgebildet. In Fig. 3 und 4 ist eine weitere Ausführungsform dargestellt. Die Lauffläche für das Malteserkreuz ist aus Rollen m, welche sich um Zapfen bewegen, gebildet. Die Deckplatten I sind mit Löchern für die Aufnahme der Rollen versehen.Around the disk α , balls δ are mounted like a ball bearing. Cover plates c and d, which are provided with grooves h (FIG. 5), are attached to both sides of the disk α , so that they prevent the balls from falling out (FIG. 2). When the Maltese cross g slides over the balls δ, these are moved along with it. The switching pin i, which rotates the Maltese cross g , is also, in a known manner, movable. Role trained. In Fig. 3 and 4, a further embodiment is shown. The running surface for the Maltese cross is formed from rollers m, which move around pegs. The cover plates I are provided with holes to accommodate the rollers.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE322225T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE322225C true DE322225C (en) | 1920-06-23 |
Family
ID=6165999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT322225D Expired DE322225C (en) | Switching disk for the Maltese cross |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE322225C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258226B (en) * | 1964-02-03 | 1968-01-04 | Kurt G Hinterkopf | Maltese cross gear with internal grooves, in particular for indexing a workpiece carrier on machines for processing tube-like or sleeve-like workpieces |
US5906134A (en) * | 1996-02-19 | 1999-05-25 | Yamada; Hiromitsu | Geneva drive mechanism |
EP1054189A1 (en) * | 1999-05-20 | 2000-11-22 | Sang Wan Joo | Driving cam of geneva mechanism |
-
0
- DE DENDAT322225D patent/DE322225C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258226B (en) * | 1964-02-03 | 1968-01-04 | Kurt G Hinterkopf | Maltese cross gear with internal grooves, in particular for indexing a workpiece carrier on machines for processing tube-like or sleeve-like workpieces |
US5906134A (en) * | 1996-02-19 | 1999-05-25 | Yamada; Hiromitsu | Geneva drive mechanism |
EP1054189A1 (en) * | 1999-05-20 | 2000-11-22 | Sang Wan Joo | Driving cam of geneva mechanism |
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