GB1022986A - Improvements in or relating to perpetual calendars - Google Patents

Improvements in or relating to perpetual calendars

Info

Publication number
GB1022986A
GB1022986A GB3692363A GB3692363A GB1022986A GB 1022986 A GB1022986 A GB 1022986A GB 3692363 A GB3692363 A GB 3692363A GB 3692363 A GB3692363 A GB 3692363A GB 1022986 A GB1022986 A GB 1022986A
Authority
GB
United Kingdom
Prior art keywords
drum
switch
day
plate
cross
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
GB3692363A
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
Priority to GB3692363A priority Critical patent/GB1022986A/en
Publication of GB1022986A publication Critical patent/GB1022986A/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
    • G09D3/12—Perpetual calendars electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1,022,986. Date indicators. G.E. DUNNING. Sept. 14, 1964 [Sept. 19, 1963], No. 36923/63. Addition to 979,420. Heading G3T. The perpetual calendar of the parent Specification is improved as to (a) the means for operating the micro switch 6 and (b) the means for displaying the day numerals. Switch 6 is operated by a Maltese Cross device comprising the cross 101, Figs. 1 and 2 (not shown) which co-operates with a raised edge 103a of a disc 103 on an hour shaft of a clock, and is rotated 90 degrees each revolution by a finger 102. A pin 105 on a shaft carrying the cross moves a lever 5 each half revolution to close the switch. The lever is resilient so that the clock can be turned back when desired. The day numeral drum is modified in that half of each day numeral appears on one plate and half on the other plate, Figs. 3 and 4 (not shown). Also, two spring catches 106 fixed to the side plates 15 support the lower plate in aligned position and are pushed aside by the links 23 as the drum rotates; these limits are assembled one by one through a slit in a sleeve surrounding the drum, the holes in the drum ends being open to the periphery and the sleeve finally being secured.
GB3692363A 1963-09-19 1963-09-19 Improvements in or relating to perpetual calendars Expired GB1022986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3692363A GB1022986A (en) 1963-09-19 1963-09-19 Improvements in or relating to perpetual calendars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3692363A GB1022986A (en) 1963-09-19 1963-09-19 Improvements in or relating to perpetual calendars

Publications (1)

Publication Number Publication Date
GB1022986A true GB1022986A (en) 1966-03-16

Family

ID=10392275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3692363A Expired GB1022986A (en) 1963-09-19 1963-09-19 Improvements in or relating to perpetual calendars

Country Status (1)

Country Link
GB (1) GB1022986A (en)

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