BE370269A - - Google Patents
Info
- Publication number
- BE370269A BE370269A BE370269DA BE370269A BE 370269 A BE370269 A BE 370269A BE 370269D A BE370269D A BE 370269DA BE 370269 A BE370269 A BE 370269A
- Authority
- BE
- Belgium
- Prior art keywords
- film
- window
- friction
- corridor
- ring
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000003100 immobilizing effect Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241001529466 Muscardinus avellanarius Species 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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
- G03B21/50—Control devices operated by the film strip during the run
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE370269A true BE370269A (enrdf_load_stackoverflow) |
Family
ID=41770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE370269D BE370269A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE370269A (enrdf_load_stackoverflow) |
-
0
- BE BE370269D patent/BE370269A/fr unknown
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