GB166821A - Globe with device for showing the action of the earth's magnetism - Google Patents
Globe with device for showing the action of the earth's magnetismInfo
- Publication number
- GB166821A GB166821A GB2157220A GB2157220A GB166821A GB 166821 A GB166821 A GB 166821A GB 2157220 A GB2157220 A GB 2157220A GB 2157220 A GB2157220 A GB 2157220A GB 166821 A GB166821 A GB 166821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- globe
- coils
- magnetism
- earth
- action
- 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
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B27/00—Planetaria; Globes
- G09B27/08—Globes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
166,821. Schlatzer, E. G. July 17, 1920. Globes.-A terrestrial globe is provided with an electromagnet for illustrating the action of the earth's magnetism. A hollow globe is mounted for rotation on a metal shaft H carried by a wooden foot L. Two coils A, A' are arranged inside the globe at the magnetic poles and connected by a bent soft-iron core B. Current is supplied to the coils through leads K, C in the foot, the lead K being connected through the shaft H to the upper coil A, and the lead C through an insulated contact ring E on the shaft and a fixed contact spring G to the lower coil A<1>, the two coils being connected in series.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2157220A GB166821A (en) | 1920-07-17 | 1920-07-17 | Globe with device for showing the action of the earth's magnetism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2157220A GB166821A (en) | 1920-07-17 | 1920-07-17 | Globe with device for showing the action of the earth's magnetism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB166821A true GB166821A (en) | 1921-07-28 |
Family
ID=10165162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2157220A Expired GB166821A (en) | 1920-07-17 | 1920-07-17 | Globe with device for showing the action of the earth's magnetism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB166821A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2008205452B1 (en) * | 2008-08-08 | 2008-11-20 | George Richard Wood | Terrestrial globe |
-
1920
- 1920-07-17 GB GB2157220A patent/GB166821A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2008205452B1 (en) * | 2008-08-08 | 2008-11-20 | George Richard Wood | Terrestrial globe |
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