GB1252575A - - Google Patents
Info
- Publication number
- GB1252575A GB1252575A GB1252575DA GB1252575A GB 1252575 A GB1252575 A GB 1252575A GB 1252575D A GB1252575D A GB 1252575DA GB 1252575 A GB1252575 A GB 1252575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- opening
- cartridge
- projector
- drums
- 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
- G03B21/321—Holders for films, e.g. reels, cassettes, spindles
- G03B21/323—Cassettes
- G03B21/325—Endless cassettes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Replacement Of Web Rolls (AREA)
- Details Of Television Scanning (AREA)
Abstract
1,252,575. Film cartridges. JAYARK INSTRUMENTS CORP. Oct.28, 1968 [Nov .28, 1967 (2)], No. 50208/69. Divided out of 1,252, 574. Heading G2E. A film cartridge containing an endless coil of cine film 140 bearing a sound track for use in a projector as disclosed in the Specification 1,252,574, comprises idler drums 152, 153, 154 which guide the film in a plane parallel to the axis of rotation of the coil in a sound reproduction path, and continuously driven sprocket wheels 161, 162 which drive the film to and from a horizontal projection gate 77 at which the film is twisted through 90 degrees with respect to said plane in passing projection aperture 178. Sprockets 161, 162 are connected by a toothed belt 163 and one sprocket is driven through a friction clutch as described in the parent specification. The front wall 146 of the cartridge 43 has a first opening 148 to admit the automatic stop pick-up head, a second opening 150 for the idler drum (71), Fig.6 (not shown), and a third opening 151 for the sound pick-up head (68). Drums 153, 154 are mounted in pivoting brackets 155, 155' spring- urged together, and are forced apart by idler drum (71) when the cartridge is inserted in the projector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68603667A | 1967-11-28 | 1967-11-28 | |
| US68608367A | 1967-11-28 | 1967-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1252575A true GB1252575A (en) | 1971-11-10 |
Family
ID=27103723
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1252575D Expired GB1252575A (en) | 1967-11-28 | 1968-10-28 | |
| GB1252574D Expired GB1252574A (en) | 1967-11-28 | 1968-10-28 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1252574D Expired GB1252574A (en) | 1967-11-28 | 1968-10-28 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE724418A (en) |
| CA (1) | CA923096A (en) |
| DE (1) | DE1811300A1 (en) |
| FR (1) | FR1593442A (en) |
| GB (2) | GB1252575A (en) |
| NL (1) | NL6817029A (en) |
| SE (2) | SE350854B (en) |
-
1968
- 1968-09-27 SE SE899271A patent/SE350854B/xx unknown
- 1968-10-25 CA CA033570A patent/CA923096A/en not_active Expired
- 1968-10-28 GB GB1252575D patent/GB1252575A/en not_active Expired
- 1968-10-28 GB GB1252574D patent/GB1252574A/en not_active Expired
- 1968-11-25 BE BE724418D patent/BE724418A/xx unknown
- 1968-11-26 FR FR1593442D patent/FR1593442A/fr not_active Expired
- 1968-11-27 SE SE1616368A patent/SE344380B/xx unknown
- 1968-11-27 DE DE19681811300 patent/DE1811300A1/en active Pending
- 1968-11-28 NL NL6817029A patent/NL6817029A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE350854B (en) | 1972-11-06 |
| BE724418A (en) | 1969-05-27 |
| FR1593442A (en) | 1970-05-25 |
| SE344380B (en) | 1972-04-10 |
| GB1252574A (en) | 1971-11-10 |
| CA923096A (en) | 1973-03-20 |
| NL6817029A (en) | 1969-05-30 |
| DE1811300A1 (en) | 1969-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |