GB1291598A - Perpetual calendar - Google Patents

Perpetual calendar

Info

Publication number
GB1291598A
GB1291598A GB6028869A GB6028869A GB1291598A GB 1291598 A GB1291598 A GB 1291598A GB 6028869 A GB6028869 A GB 6028869A GB 6028869 A GB6028869 A GB 6028869A GB 1291598 A GB1291598 A GB 1291598A
Authority
GB
United Kingdom
Prior art keywords
scale
year
month
weekday
upper disc
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
GB6028869A
Inventor
Bengt Anders Benson
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 GB1291598A publication Critical patent/GB1291598A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09D—RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS
    • G09D3/00—Perpetual calendars
    • G09D3/04—Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar
    • G09D3/06—Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar with rotatable members
    • G09D3/08—Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar with rotatable members of disc form

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Electric Clocks (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1291598 Perpetual calendars B A BENSON 10 Dec 1969 [18 Dec 1968] 60288/69 Heading G3T A perpetual calendar comprises an upper disc 10 and a lower disc 12 relatively rotatable about a common centre, the lower disc having at least one year scale 28 and a weekday scale 30 whilst the upper disc has a month scale 22 and a date scale 24 or date table (24<SP>1</SP>). The upper disc is provided with a window 26 through which a portion of the weekday scale 30 is visible, the date scale 24 covering the adjacent portion of the year scale 28. The outer edge of the month scale 22 is recessed to enable a selected month of the scale 22 to be aligned with a selected year of the scale 28, the weekday on which any day of the selected month falls then being read from the cooperating scales 24, 30. The month scale is provided at one end with an additional portion marked with the months January and February and is used if the selected year is a leap year. In a modification, an additional year scale, which is viewed through a second window in the upper disc is provided radially inwardly of the weekday scale 30. The discs are made of metal, cardboard or plastics.
GB6028869A 1968-12-18 1969-12-10 Perpetual calendar Expired GB1291598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1737768A SE332536B (en) 1968-12-18 1968-12-18

Publications (1)

Publication Number Publication Date
GB1291598A true GB1291598A (en) 1972-10-04

Family

ID=20303561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6028869A Expired GB1291598A (en) 1968-12-18 1969-12-10 Perpetual calendar

Country Status (3)

Country Link
DE (1) DE1963461C3 (en)
GB (1) GB1291598A (en)
SE (1) SE332536B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190770A (en) * 1986-05-08 1987-11-25 Humphreys Jeanne Jose Perpetual calendar
GB2202060A (en) * 1987-03-13 1988-09-14 Nicola Dentamaro A perpetual calendar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190770A (en) * 1986-05-08 1987-11-25 Humphreys Jeanne Jose Perpetual calendar
GB2190770B (en) * 1986-05-08 1990-07-04 Humphreys Jeanne Jose Perpetual calendar
GB2202060A (en) * 1987-03-13 1988-09-14 Nicola Dentamaro A perpetual calendar

Also Published As

Publication number Publication date
DE1963461C3 (en) 1973-01-04
DE1963461B2 (en) 1972-06-15
DE1963461A1 (en) 1970-06-25
SE332536B (en) 1971-02-08

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee