EP 0173230 B1 19880518 - WORLD CLOCK
Title (en)
WORLD CLOCK
Publication
Application
Priority
CH 402684 A 19840823
Abstract (en)
[origin: US4634287A] The timepiece of this invention comprises at least one hand making a revolution in twelve hours and a disc making a revolution in twenty-four hours. A crown enables simultaneous setting of the hand and disc display when pulled out to the second position. When rotated in one sense while in the first pulled-out position the crown sets the disc only. Between the disc and the hand there is interposed a speed reducer provided with a hollowed-out gear containing a jumper spring. The jumper engages a star wheel, itself fixed to a pinion which meshes with teeth borne by the disc. In operating the disc through this mechanism it is displaced through one hour intervals by the action of the end of the jumper on the teeth of the star wheel.
IPC 1-7
IPC 8 full level
G04B 19/22 (2006.01); G04B 19/23 (2006.01); G04B 19/25 (2006.01)
CPC (source: EP US)
G04B 19/235 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0173230 A1 19860305; EP 0173230 B1 19880518; CH 657007G A3 19860815; DE 3562828 D1 19880623; HK 19392 A 19920320; JP 2541568 Y2 19970716; JP H0684382 U 19941202; JP S6162890 A 19860331; US 4634287 A 19870106
DOCDB simple family (application)
EP 85110441 A 19850820; CH 402684 A 19840823; DE 3562828 T 19850820; HK 19392 A 19920312; JP 18435585 A 19850823; JP 9592091 U 19911028; US 76837585 A 19850822