GB412916A - Improvements in black-boards and the like - Google Patents
Improvements in black-boards and the likeInfo
- Publication number
- GB412916A GB412916A GB34277/32A GB3427732A GB412916A GB 412916 A GB412916 A GB 412916A GB 34277/32 A GB34277/32 A GB 34277/32A GB 3427732 A GB3427732 A GB 3427732A GB 412916 A GB412916 A GB 412916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- uprights
- band
- blackboard
- endless band
- boards
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
412,916. Displaying. GARDEN, W. B., 24, Newton Street, Kilsyth, Stirlingshire. Dec. 3, 1932, No. 34277. Drawings to Specification. [Class 3 (i).] In a blackboard or the like comprising an endless band constituted of flexible sheets of blackboard-surfaced or like material detachably connected together and entrained over top and bottom rollers carried by a frame presented by spaced uprights, the lower parts of the uprights are disposed vertically and parallel and the upper parts are divergently inclined to prevent the band becoming jammed at the upper end against an upright. The front and rear surfaces of the uprights may be furnished with facing strips, overlapping the edges of the band and the endless band may carry maps, diagrams or the like.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34277/32A GB412916A (en) | 1932-12-03 | 1932-12-03 | Improvements in black-boards and the like |
| US705003A US1989006A (en) | 1932-12-03 | 1934-01-02 | Blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34277/32A GB412916A (en) | 1932-12-03 | 1932-12-03 | Improvements in black-boards and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB412916A true GB412916A (en) | 1934-07-03 |
Family
ID=10363615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34277/32A Expired GB412916A (en) | 1932-12-03 | 1932-12-03 | Improvements in black-boards and the like |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1989006A (en) |
| GB (1) | GB412916A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154294B (en) * | 2021-04-28 | 2022-10-25 | 华北水利水电大学 | Desktop illuminating lamp, illuminating system and method for ladder classroom |
-
1932
- 1932-12-03 GB GB34277/32A patent/GB412916A/en not_active Expired
-
1934
- 1934-01-02 US US705003A patent/US1989006A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1989006A (en) | 1935-01-22 |
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