GB653751A - A spool having means for retaining fixed to its core a perforated photographic film - Google Patents
A spool having means for retaining fixed to its core a perforated photographic filmInfo
- Publication number
- GB653751A GB653751A GB6162/48A GB616248A GB653751A GB 653751 A GB653751 A GB 653751A GB 6162/48 A GB6162/48 A GB 6162/48A GB 616248 A GB616248 A GB 616248A GB 653751 A GB653751 A GB 653751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- strip
- core
- spool
- teeth
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/28—Locating light-sensitive material within camera
- G03B17/30—Locating spools or other rotatable holders of coiled film
-
- 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
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/26—Holders for containing light-sensitive material and adapted to be inserted within the camera
- G03B2217/261—Details of spools
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
653,751. Photographic and kinematographic film spools. DUCATI-SOC. SCIENTIFICA RADIO BREVETTI DUCATI. Feb. 27, 1948, No. 6162. Convention date, Nov. 12, 1946. [Classes 97 (i) and 98 (i)] A film spool of the kind in which perforated film is attached to the spool core by engaging the perforations upon teeth extending outwards from the outer surface of the core is characterized in that the film is retained on the teeth by a strip or spring carried by the core and partially surrounding it. In an alternative construction the teeth are formed on and extend inwardly from the inner surface of the strip. As shown a preferably resilient strip 4 partially surrounds the spool core 1 and is prevented from rotating about it in one direction by a stop 2. Teeth as 3, 3<SP>1</SP>, are formed in the outer surface of the core or the inner face of the strip and engage in the film-feed perforations 6 as the film is pushed between the core and the strip, return movement of the film being prevented by the vertical face of the sawtooth profile of the teeth engaging the back edge of the perforations. To remove the stump of film held on the spool after cutting off the free portion of the film the strip 4, (Fig. 2) is rotated anticlockwise and the stump of film freed so that the spool may be used again. In the alternative construction, Fig. 3, having teeth formed on the inner face of the strip, the strip is rotated until it and the film stump have passed completely over the inclined face of the stop 2, the film is pressed down into the space between the strip and the core, and is then removed from beneath the end of the strip opposite to that under which it was inserted originally.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT653751X | 1946-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB653751A true GB653751A (en) | 1951-05-23 |
Family
ID=11297873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6162/48A Expired GB653751A (en) | 1946-11-12 | 1948-02-27 | A spool having means for retaining fixed to its core a perforated photographic film |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB653751A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097807B (en) * | 1958-12-03 | 1961-01-19 | Paul Nagel | Film reel |
DE1103128B (en) * | 1958-12-03 | 1961-03-23 | Paul Nagel | Film take-up spool |
US3065838A (en) * | 1959-04-02 | 1962-11-27 | Syracuse Stamping Company Inc | Ribbon spool |
-
1948
- 1948-02-27 GB GB6162/48A patent/GB653751A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097807B (en) * | 1958-12-03 | 1961-01-19 | Paul Nagel | Film reel |
DE1103128B (en) * | 1958-12-03 | 1961-03-23 | Paul Nagel | Film take-up spool |
US3065838A (en) * | 1959-04-02 | 1962-11-27 | Syracuse Stamping Company Inc | Ribbon spool |
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