GB318150A - Toy slide rule - Google Patents

Toy slide rule

Info

Publication number
GB318150A
GB318150A GB24692/29A GB2469229A GB318150A GB 318150 A GB318150 A GB 318150A GB 24692/29 A GB24692/29 A GB 24692/29A GB 2469229 A GB2469229 A GB 2469229A GB 318150 A GB318150 A GB 318150A
Authority
GB
United Kingdom
Prior art keywords
guide
slide
division
numbered
divisions
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
GB24692/29A
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
Publication of GB318150A publication Critical patent/GB318150A/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
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/02—Counting; Calculating

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Toys (AREA)

Abstract

318,150. Bourgeois, F. J. Aug. 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Adding and subtracting apparatus. - A device for use by children consists of a slide displaceable relatively to a guide. Upon the guide are ten equal dimensions numbered from 1 to 10, and upon the slide are ten corresponding equal divisions numbered from 10 to 1, the arrangement being such that any division on the slide can be brought opposite to any division on the guide. At the rear of the guide is an aperture through which can be seen a scale inscribed on the rear of the slide, this scale-being such that it indicates the sum of each pair of figures opposite each other on the upper part of the device. The numbers in the divisions may be accompanied by representations of various objects. It is stated that the device may be arranged to effect subtractions.
GB24692/29A 1928-08-28 1929-08-13 Toy slide rule Expired GB318150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR318150X 1928-08-28

Publications (1)

Publication Number Publication Date
GB318150A true GB318150A (en) 1930-06-26

Family

ID=8889789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24692/29A Expired GB318150A (en) 1928-08-28 1929-08-13 Toy slide rule

Country Status (1)

Country Link
GB (1) GB318150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321985A (en) * 1997-02-05 1998-08-12 Agamemnon Charal Hadjigeorgiou Slide rule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321985A (en) * 1997-02-05 1998-08-12 Agamemnon Charal Hadjigeorgiou Slide rule
GB2321985B (en) * 1997-02-05 2001-09-05 Agamemnon Charal Hadjigeorgiou Slide rule

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