FR2234578A1 - - Google Patents
Info
- Publication number
- FR2234578A1 FR2234578A1 FR7421997A FR7421997A FR2234578A1 FR 2234578 A1 FR2234578 A1 FR 2234578A1 FR 7421997 A FR7421997 A FR 7421997A FR 7421997 A FR7421997 A FR 7421997A FR 2234578 A1 FR2234578 A1 FR 2234578A1
- Authority
- FR
- France
- 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.)
- Granted
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
- G03B1/56—Threading; Loop forming
-
- 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
- G03B21/42—Preventing damage to film due to abnormal operation of projector
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3001573A GB1468353A (en) | 1973-06-25 | 1973-06-25 | Cinematorgraph projectors |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2234578A1 true FR2234578A1 (fr) | 1975-01-17 |
FR2234578B3 FR2234578B3 (fr) | 1977-05-06 |
Family
ID=10300897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7421997A Expired FR2234578B3 (fr) | 1973-06-25 | 1974-06-25 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3932033A (fr) |
DE (1) | DE2430218A1 (fr) |
FR (1) | FR2234578B3 (fr) |
GB (1) | GB1468353A (fr) |
IN (1) | IN142128B (fr) |
NL (1) | NL7408570A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5622426A (en) * | 1994-11-29 | 1997-04-22 | Romano; Richard J. | Wash light and method |
US20050128147A1 (en) * | 2003-12-15 | 2005-06-16 | Zeewaves Systems, Inc. | Antenna system |
US7710646B2 (en) * | 2006-09-12 | 2010-05-04 | Stewart Filmscreen Corporation | Anti-bulging projection screen structure |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1812212A (en) * | 1925-08-01 | 1931-06-30 | William H Meyer | Motion picture projector |
US1872353A (en) * | 1930-01-11 | 1932-08-16 | Westinghouse Electric & Mfg Co | Film gate |
US2506441A (en) * | 1945-04-10 | 1950-05-02 | Charlin Andre Marie Bernard | Cinematographic projector having curved film gate |
US2461140A (en) * | 1947-11-13 | 1949-02-08 | Eastman Kodak Co | Double shutter heat protection for motion-picture projectors |
US3029687A (en) * | 1958-10-21 | 1962-04-17 | Bosch Gmbh Robert | Motion picture apparatus |
-
1973
- 1973-06-25 GB GB3001573A patent/GB1468353A/en not_active Expired
-
1974
- 1974-06-21 US US05/481,721 patent/US3932033A/en not_active Expired - Lifetime
- 1974-06-24 IN IN1395/CAL/1974A patent/IN142128B/en unknown
- 1974-06-24 DE DE2430218A patent/DE2430218A1/de not_active Withdrawn
- 1974-06-25 NL NL7408570A patent/NL7408570A/xx not_active Application Discontinuation
- 1974-06-25 FR FR7421997A patent/FR2234578B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2430218A1 (de) | 1975-01-16 |
IN142128B (fr) | 1977-06-04 |
NL7408570A (fr) | 1974-12-30 |
GB1468353A (en) | 1977-03-23 |
US3932033A (en) | 1976-01-13 |
FR2234578B3 (fr) | 1977-05-06 |