GB1129692A - Improvements in or relating to a device for unwinding and rewinding a tape or film - Google Patents
Improvements in or relating to a device for unwinding and rewinding a tape or filmInfo
- Publication number
- GB1129692A GB1129692A GB796667A GB796667A GB1129692A GB 1129692 A GB1129692 A GB 1129692A GB 796667 A GB796667 A GB 796667A GB 796667 A GB796667 A GB 796667A GB 1129692 A GB1129692 A GB 1129692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- arm
- spool
- web
- driven
- 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
- G03B19/00—Cameras
- G03B19/18—Motion-picture cameras
-
- 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)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
1,129,692. Cine apparatus. PAIL LARD S. A. Feb. 20, 1967 [March 8, 1966], No.7966/67. Heading G2E. [Also in Division G5] In rewinding mechanism which may be applied to cine film, magnetic tapes or other webs, the spool in magazine 2 is driven initially at high speed until the web is nearly re-wound, and then an element 38 sensitive to a reduction in web tension reduces the re-winding speed. The spool is driven by a side-wheel 11 engaging, through an intermediate roller 12, a wheel 13 whose shaft carries a rubber faced disc 15 opposite a parallel, but axially off-set similar disc 27. Disc 27 is driven through gears 25, 26 by motor M and a variable speed driving transmission between the discs is provided by an axially slidable friction roller 28 carried on an arm 30 pivoted at 31, and spring-loaded at 33. Fast re-wind from spool 6 is started by depression of button 34 to pivot arm 30 and so move rollers 28 to the periphery of disc 27, arm 30 thus being retained by the spring-loaded rod 37 engaging dog 36. The end 38 of rod 37 rides on the web or film F until tension falls and arm 30 is released to pivot back to the low-speed position of roller 28. This position is determined by stop 40.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH330266A CH432171A (en) | 1966-03-08 | 1966-03-08 | Dispositif de déroulement d'une bande et de rebobinage de celle-ci |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1129692A true GB1129692A (en) | 1968-10-09 |
Family
ID=4253041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB796667A Expired GB1129692A (en) | 1966-03-08 | 1967-02-20 | Improvements in or relating to a device for unwinding and rewinding a tape or film |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT263544B (en) |
| CH (1) | CH432171A (en) |
| FR (1) | FR1512170A (en) |
| GB (1) | GB1129692A (en) |
-
1966
- 1966-03-08 CH CH330266A patent/CH432171A/en unknown
- 1966-04-01 AT AT313566A patent/AT263544B/en active
-
1967
- 1967-02-20 GB GB796667A patent/GB1129692A/en not_active Expired
- 1967-02-22 FR FR96037A patent/FR1512170A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH432171A (en) | 1967-03-15 |
| FR1512170A (en) | 1968-02-02 |
| AT263544B (en) | 1968-07-25 |
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