GB1171145A - Improvements in or relating to Devices for Displaying Characters or the like - Google Patents
Improvements in or relating to Devices for Displaying Characters or the likeInfo
- Publication number
- GB1171145A GB1171145A GB5405666A GB5405666A GB1171145A GB 1171145 A GB1171145 A GB 1171145A GB 5405666 A GB5405666 A GB 5405666A GB 5405666 A GB5405666 A GB 5405666A GB 1171145 A GB1171145 A GB 1171145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- chamber
- wall
- magnetic
- small
- 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
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
1,171,145. Magnetic display device. R. C. SINNOTT, A. W. BOLLS, and R. L. KING, [trading as SINNOTT CO.]. 2 Dec., 1966 [6 Dec., 1965; 11 July, 1966], No. 54056/66. Heading G5C. A display device comprises a transparent window 24 mounted in front of a display wall 12 and defining therebetween a first chamber 54 (Fig. 2) containing a plurality of small magnetic particles, the chamber 54 being separated from a lower chamber 56 containing a plurality of larger particles 62 by a filter 50 through which only the small particles can pass, means 14 for applying alternating magnetic force to both larger and small particles to agitate them whereby a transparent cloud of small particles is formed in the chamber 54, and electromagnetic means 20 mounted behind the display wall for attracting the small particles to the wall in a desired pattern. An electric coil 58 encompassing the lower chamber creates the force to energize the particles and the smaller particles collect in the larger faster moving particles and by so doing increase their energy. As the particles strike the filter 50, the larger ones return to the lower chamber 56 while the small ones are propelled upwards into chamber 54 where they continue their random action and form a transparent cloud. The display magnet assembly 20 mounted behind the wall 12 may comprise seven electromagnets arranged in a rectangular figure 8 pattern. Magnetic plates 56 and 84 countersunk in the loops of the figure form common poles for the electromagnets for energization of any selection of the electromagnets. An erase coil mounted behind the wall 12 is capable of creating a magnetic field perpendicular to the wall 12 for removing the particles therefrom and returning them to the transparent cloud. In other embodiments, not shown, the display electromagnet includes a plurality of alternating magnetic and non-magnetic plates which at their forward ends are shaped to define a word (Fig. 9). The small particles may include two distinct size ranges, and the air may be partially evacuated from the chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51170765A | 1965-12-06 | 1965-12-06 | |
| US56535366A | 1966-07-11 | 1966-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1171145A true GB1171145A (en) | 1969-11-19 |
Family
ID=27057317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5405666A Expired GB1171145A (en) | 1965-12-06 | 1966-12-02 | Improvements in or relating to Devices for Displaying Characters or the like |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1269016B (en) |
| FR (1) | FR1507386A (en) |
| GB (1) | GB1171145A (en) |
| NL (1) | NL6617126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710258A (en) * | 2020-07-15 | 2020-09-25 | 杭州艾普莱标识制造有限公司 | Recyclable signboard |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1069582A (en) * | 1911-11-11 | 1913-08-05 | Frederic Schaefer | Electric sign. |
| US2968805A (en) * | 1955-08-01 | 1961-01-17 | Honeywell Regulator Co | Electrically operated indicating devices |
| US3096271A (en) * | 1958-11-26 | 1963-07-02 | Burroughs Corp | Data display device |
| US3169241A (en) * | 1961-03-01 | 1965-02-09 | Aiken William Ross | Signalling device |
| US3162849A (en) * | 1961-05-10 | 1964-12-22 | Honeywell Inc | Two position visual display indicator |
-
1966
- 1966-12-02 GB GB5405666A patent/GB1171145A/en not_active Expired
- 1966-12-05 FR FR86206A patent/FR1507386A/en not_active Expired
- 1966-12-05 DE DE19661269016 patent/DE1269016B/en active Pending
- 1966-12-06 NL NL6617126A patent/NL6617126A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710258A (en) * | 2020-07-15 | 2020-09-25 | 杭州艾普莱标识制造有限公司 | Recyclable signboard |
| CN111710258B (en) * | 2020-07-15 | 2022-06-14 | 杭州艾普莱标识制造有限公司 | Recyclable signboard |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6617126A (en) | 1967-06-07 |
| FR1507386A (en) | 1967-12-29 |
| DE1269016B (en) | 1968-05-22 |
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