FR2316675A1 - Rotary perpetual calendar system - has display of day of week for known date and uses series of discs - Google Patents

Rotary perpetual calendar system - has display of day of week for known date and uses series of discs

Info

Publication number
FR2316675A1
FR2316675A1 FR7520869A FR7520869A FR2316675A1 FR 2316675 A1 FR2316675 A1 FR 2316675A1 FR 7520869 A FR7520869 A FR 7520869A FR 7520869 A FR7520869 A FR 7520869A FR 2316675 A1 FR2316675 A1 FR 2316675A1
Authority
FR
France
Prior art keywords
week
day
rotary
discs
display
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.)
Granted
Application number
FR7520869A
Other languages
French (fr)
Other versions
FR2316675B1 (en
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.)
BOULBES FERNAND
Original Assignee
BOULBES FERNAND
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 BOULBES FERNAND filed Critical BOULBES FERNAND
Priority to FR7520869A priority Critical patent/FR2316675A1/en
Publication of FR2316675A1 publication Critical patent/FR2316675A1/en
Application granted granted Critical
Publication of FR2316675B1 publication Critical patent/FR2316675B1/fr
Granted 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

Abstract

The rotary perpetual calendar has means for displaying the day of the week corresponding to a known date. The calendar comprises a fixed part which carries all the date information in the form of three tables and a rotatable part, which is in the form of a disc or disc segment and which carries the days of the week. The rotatable part has semi-circular apertures (4, 5) through which the information relating to a specific date can be viewed. The fixed part pref. has a first table denoting the years from 0 to 99 with eighteen semi-circular bands, in which the years follow one another consecutively in a clockwork direction.
FR7520869A 1975-07-03 1975-07-03 Rotary perpetual calendar system - has display of day of week for known date and uses series of discs Granted FR2316675A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7520869A FR2316675A1 (en) 1975-07-03 1975-07-03 Rotary perpetual calendar system - has display of day of week for known date and uses series of discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7520869A FR2316675A1 (en) 1975-07-03 1975-07-03 Rotary perpetual calendar system - has display of day of week for known date and uses series of discs

Publications (2)

Publication Number Publication Date
FR2316675A1 true FR2316675A1 (en) 1977-01-28
FR2316675B1 FR2316675B1 (en) 1977-10-21

Family

ID=9157446

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520869A Granted FR2316675A1 (en) 1975-07-03 1975-07-03 Rotary perpetual calendar system - has display of day of week for known date and uses series of discs

Country Status (1)

Country Link
FR (1) FR2316675A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002925A1 (en) * 1992-07-15 1994-02-03 Peter Helge Aa Katballe Perpetual calendar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002925A1 (en) * 1992-07-15 1994-02-03 Peter Helge Aa Katballe Perpetual calendar

Also Published As

Publication number Publication date
FR2316675B1 (en) 1977-10-21

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