GB191311915A - Improvements in or relating to Spools for Spirally Winding and Unwinding Rolls of Material. - Google Patents
Improvements in or relating to Spools for Spirally Winding and Unwinding Rolls of Material.Info
- Publication number
- GB191311915A GB191311915A GB191311915DA GB191311915A GB 191311915 A GB191311915 A GB 191311915A GB 191311915D A GB191311915D A GB 191311915DA GB 191311915 A GB191311915 A GB 191311915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- brake
- roll
- lever
- fixed part
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Winding Of Webs (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
11,915. Lytton, E. May 22. [Cognate Application, 18,423/13.] Kinematograph a pparatus. - A spool of the type for winding kinematograph films or strips of material from or to the inside of rolls comprises means operating continuously to retain the convolutions of the wound part of the roll in engagement with one another, such as adjustable stops h engaging the outside of the roll and movable spring or otherwise operated stops h<1> to press against the inside of the roll and move outwards as the film is unrolled from the centre. The spool comprises a fixed part A and a rotatable part B mounted on the fixed part, the film being carried on the rotatable part B in the form shown in Figs. 1, 3, 4, and 5 and on the fixed part A in the form shown in Fig. 6. Automatic means are provided to brake the rotatable part if the film breaks or the machine stops such as an arm n<1> on the swing- ing lever n of the guidepulley m connected by a rod r with a lever o carrying a brake-shoe q adapted to engage with the rotatable member B. The guide-pulley lever n is held in retracted position by the film against the action of a coil spring s; should the film slacken the brake is applied.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191311915T | 1913-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191311915A true GB191311915A (en) | 1914-03-05 |
Family
ID=32370980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191311915D Expired GB191311915A (en) | 1913-05-22 | 1913-05-22 | Improvements in or relating to Spools for Spirally Winding and Unwinding Rolls of Material. |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE321551C (en) |
| GB (1) | GB191311915A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875667A (en) * | 1952-02-19 | 1959-03-03 | Chedister Conkling | Continuous feed attachment |
| DE1192482B (en) * | 1954-09-30 | 1965-05-06 | Ncr Co | Device for intermittent unwinding of a tape from inside a tape roll |
| US2917308A (en) * | 1957-05-22 | 1959-12-15 | Donald G Woelfel | Housing and interchangeable magazine for endless film |
| DE1952592C3 (en) * | 1969-10-18 | 1979-02-01 | Willi 7980 Ravensburg Burth | Device for feeding a tape out of the inner circumference of a tape roll |
-
1913
- 1913-05-22 GB GB191311915D patent/GB191311915A/en not_active Expired
-
1918
- 1918-10-01 DE DE1918321551D patent/DE321551C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE321551C (en) | 1920-06-07 |
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