GB411992A - Improved film-feed indicator for kinematograph apparatus - Google Patents
Improved film-feed indicator for kinematograph apparatusInfo
- Publication number
- GB411992A GB411992A GB714233A GB714233A GB411992A GB 411992 A GB411992 A GB 411992A GB 714233 A GB714233 A GB 714233A GB 714233 A GB714233 A GB 714233A GB 411992 A GB411992 A GB 411992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- feeler
- arm
- coiled
- kinematograph apparatus
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Protection Of Plants (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
411,992. Kinematograph apparatus. HALLIDAY, J. R., 191, Gorgie Road, Edinburgh. March 9, 1933, No. 7142. [Class 97 (i).] The amount of film in a spool box is continuously visibly indicated by a device actuated by a feeler, and another signalling device is automatically actuated by the feeler when all but a predetermined length of film has been unwound. As shown, a feeler 5 rests on the film 6 coiled on a pay-out spool 7. The feeler is carried by an arm 9 turning with a spindle carrying a pointer 8 which, while the arm 9 moves from position I to position II, travels over a scale 12 graduated in film lengths or time intervals, or both. When the diameter of the coiled film permits the arm to fall from position II to position III, a hammer 13, also carried by the spindle, strikes a gong 14 attached to the spool box.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB714233A GB411992A (en) | 1933-03-09 | 1933-03-09 | Improved film-feed indicator for kinematograph apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB714233A GB411992A (en) | 1933-03-09 | 1933-03-09 | Improved film-feed indicator for kinematograph apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB411992A true GB411992A (en) | 1934-06-21 |
Family
ID=9827411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB714233A Expired GB411992A (en) | 1933-03-09 | 1933-03-09 | Improved film-feed indicator for kinematograph apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB411992A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939006C (en) * | 1950-06-05 | 1956-02-09 | Paillard Sa | Cinema camera with acoustic signal device |
-
1933
- 1933-03-09 GB GB714233A patent/GB411992A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939006C (en) * | 1950-06-05 | 1956-02-09 | Paillard Sa | Cinema camera with acoustic signal device |
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