GB386042A - Improvements in cinematograph film-feeding devices - Google Patents
Improvements in cinematograph film-feeding devicesInfo
- Publication number
- GB386042A GB386042A GB26435/31A GB2643531A GB386042A GB 386042 A GB386042 A GB 386042A GB 26435/31 A GB26435/31 A GB 26435/31A GB 2643531 A GB2643531 A GB 2643531A GB 386042 A GB386042 A GB 386042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- claw
- film
- perforation
- gear
- path
- 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
- G03B1/20—Acting means
- G03B1/22—Claws or pins engaging holes in the film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Advancing Webs (AREA)
Abstract
386,042. Kinematograph apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Wittel, O. ; 343, State Street, Rochester, New York, U.S.A.) Sept. 22, 1931, No. 26435. Convention date, Oct. 9, 1930. [Class 97 (i).] In claw-feed mechanism wherein the claw is moved in a looped path by two members respectively moving it mainly longitudinally of the film and mainly perpendicular thereto, the direction of the path of the claw on entering and on leaving a film perforation is inclined to the edge of the claw which engages the film, the inclination being rearward with respect to the direction of film feed ; the direction of the claw movement may also have a component rearward with respect to the direction of film movement at such times. The claw may, as described in Specification 386,246, make contact with the rear edge of a film perforation when entering the perforation. As shown, a claw-carrying member 21 is moved by an eccentric 11 and by a cam 14 engaging flanges 25, 28, the eccentric and cam being operatively connected by a gear 7 and a gear 8 having a diameter half that of the gear 7. The member is formed with two tapering claws 24 having a thickness less than the depth of a film perforation, and the relation of the parts of the mechanism is such as to produce a claw path A .. H, Fig. 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US386042XA | 1930-10-09 | 1930-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB386042A true GB386042A (en) | 1933-01-12 |
Family
ID=21900855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26435/31A Expired GB386042A (en) | 1930-10-09 | 1931-09-22 | Improvements in cinematograph film-feeding devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB386042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2569487A (en) * | 1949-06-13 | 1951-10-02 | Mitchell Camera Corp | Intermittent movement with improved claw action |
-
1931
- 1931-09-22 GB GB26435/31A patent/GB386042A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2569487A (en) * | 1949-06-13 | 1951-10-02 | Mitchell Camera Corp | Intermittent movement with improved claw action |
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