GB455780A - Improvements in and connected with visible indicators - Google Patents
Improvements in and connected with visible indicatorsInfo
- Publication number
- GB455780A GB455780A GB975034A GB975034A GB455780A GB 455780 A GB455780 A GB 455780A GB 975034 A GB975034 A GB 975034A GB 975034 A GB975034 A GB 975034A GB 455780 A GB455780 A GB 455780A
- Authority
- GB
- United Kingdom
- Prior art keywords
- band
- knob
- wheel
- rollers
- spring
- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/24—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies
- G09F11/29—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Control Devices (AREA)
Abstract
455,780. Changing signs. WHITEHEAD, F. P., (trading as WHITEHEAD & CO., F.), 34, Pickets Street, Balham, London. April 27, 1935, No. 9750/34. [Class 3 (i)] In indicators of the type comprising a flexible non-endless display band G mounted on two spring rollers E, F geared together and driven in either direction at will through the intermediary of a toothed wheel D, this wheel gears directly with a pinion on each spring roller shaft and also with a pinion on a roller N having sprocket teeth which engage perforations in the band G at the portion thereof intermediate the rollers E, F. The roller N maintains a constant advance of the band G for a given angular rotation of the wheel D. The wheel D may be replaced by a plurality of gearwheels, two of which may have projections which abut to limit the turning of the direct action knob when the whole of the band has been traversed. A slow-motion mechanism may be applied to one of the rollers E, F, and comprises a knob H<1>, Fig. 4, acting through a friction clutch K and reduction gearing I<3>, I<1>, I<2> and I. When the direct action knob is in use, the knob H<1> is pushed in to release the spring-pressed clutch K, thus lessening the friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB975034A GB455780A (en) | 1935-04-27 | 1935-04-27 | Improvements in and connected with visible indicators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB975034A GB455780A (en) | 1935-04-27 | 1935-04-27 | Improvements in and connected with visible indicators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB455780A true GB455780A (en) | 1936-10-27 |
Family
ID=9878041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB975034A Expired GB455780A (en) | 1935-04-27 | 1935-04-27 | Improvements in and connected with visible indicators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB455780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832162A (en) * | 1953-12-21 | 1958-04-29 | Mildred E Bobo | Educational apparatus |
-
1935
- 1935-04-27 GB GB975034A patent/GB455780A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832162A (en) * | 1953-12-21 | 1958-04-29 | Mildred E Bobo | Educational apparatus |
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