GB191203179A - New Educational Appliance. - Google Patents

New Educational Appliance.

Info

Publication number
GB191203179A
GB191203179A GB191203179DA GB191203179A GB 191203179 A GB191203179 A GB 191203179A GB 191203179D A GB191203179D A GB 191203179DA GB 191203179 A GB191203179 A GB 191203179A
Authority
GB
United Kingdom
Prior art keywords
lens
globe
light representing
tropic
declination
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
Application number
Inventor
Henry Mungles Fletcher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB191203179A publication Critical patent/GB191203179A/en
Expired legal-status Critical Current

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)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

3179. Fletcher, H. M. Feb. 8. Globes.-A terrestrial globe A, for demonstrating the relation between the declination of the sun and the length of day and night, is constructed of translucent material and is provided with a rotatable disk F carrying electric lamps I, J and a pointer G provided with a lens H. The lamps I, J are of different colours, preferably plain and red, and are shielded so that each lamp illuminates one half of the globe, the white light representing daylight and the red light representing darkness. The lens H is coloured yellow, and throws a spot of light representing the incidence of the perpendicular rays of the sun. The disk can be rotated through gearing D, E by a spindle C to set the lens between the limits of the Tropic of Cancer and the Tropic of Capricorn. When tEe lens has been set at the latitude corresponding to the declination, the length of day and night at any place can be observed by rotating the globe. The globe is constructed of frosted glass, celluloid, wire gauze, or the like, and is formed with lines of latitude and longitude and with outline maps showing the capitals of the principal countries.
GB191203179D 1912-02-08 1912-02-08 New Educational Appliance. Expired GB191203179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191203179T 1912-02-08

Publications (1)

Publication Number Publication Date
GB191203179A true GB191203179A (en) 1912-12-12

Family

ID=34358146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191203179D Expired GB191203179A (en) 1912-02-08 1912-02-08 New Educational Appliance.

Country Status (1)

Country Link
GB (1) GB191203179A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197893A (en) * 1962-12-20 1965-08-03 Mariotti Anthony Solar orientated globe device
US3316706A (en) * 1964-04-27 1967-05-02 Kilburg Geochran Corp Horological instrument for graphically representing the relative positions of sun and earth
US3370415A (en) * 1964-09-09 1968-02-27 Hubert A. Mcilvaine Global clocks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197893A (en) * 1962-12-20 1965-08-03 Mariotti Anthony Solar orientated globe device
US3316706A (en) * 1964-04-27 1967-05-02 Kilburg Geochran Corp Horological instrument for graphically representing the relative positions of sun and earth
US3370415A (en) * 1964-09-09 1968-02-27 Hubert A. Mcilvaine Global clocks

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