EP 1012675 A1 20000628 - TRAIN OF CLOCKWORK WITH PERPETUAL JULIAN DATE
Title (en)
TRAIN OF CLOCKWORK WITH PERPETUAL JULIAN DATE
Title (de)
EWIGE KALENDERUHR
Title (fr)
MOUVEMENT D'HORLOGERIE A QUANTIEME PERPETUEL
Publication
Application
Priority
- CH 9800027 W 19980126
- CH 19197 A 19970130
Abstract (en)
[origin: WO9834162A1] The invention concerns a train of clockwork with perpetual Julian date, characterised in that it comprises an adjusting device for causing a date indicator (2) to carry out adjusting steps, for automatically taking into account months with 28, 29, or 30 days, said adjusting device comprising a rotating cam (26) driven at least one step every twenty-four hours, said cam (26) having an outline (28) for controlling a sensor (30) bringing about: the oscillating motion of a mobile element (32) provided with a click spring system (34), for moving forward the date indicator (2) by the required supplementary step(s), and the forward movement of said cam (26) for causing it to make the number of steps equal to the number of adjusting steps of said indicator (2) for carrying out one complete round every year.
IPC 1-7
IPC 8 full level
G04B 19/24 (2006.01); G04B 19/253 (2006.01)
CPC (source: EP US)
G04B 19/2538 (2013.01 - EP US)
Citation (search report)
See references of WO 9834162A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9834162 A1 19980806; CH 691086 A5 20010412; DE 69829486 D1 20050428; DE 69829486 T2 20060216; EP 1012675 A1 20000628; EP 1012675 B1 20050323; JP 2001519897 A 20011023; US 6118734 A 20000912
DOCDB simple family (application)
CH 9800027 W 19980126; CH 19197 A 19970130; DE 69829486 T 19980126; EP 98900518 A 19980126; JP 53241698 A 19980126; US 35505299 A 19990723