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1. 发明授权

US1616569A Time train 失效
标题翻译：时间列车
公开(公告)号：US1616569A
公开(公告)日：1927-02-08
申请号：US9571326
申请日：1926-03-18
申请人： CIE IND DE MECANIQUE HORLOGERE
发明人： IVAN BENEL FRANCOIS
IPC分类号： G04B11/00
CPC分类号： G04B11/003
摘要： 249,835. Compagnie Industrielle de MÚcanique HorlogÞre. March 27, 1925, [Convention date]. Alarm mechanism; wheels, pinions, and arbors. -Figs. 1 and 4 illustrate the known art in which a ratchet wheel 3 on the arbor 2 of the alarm spring 1 carries freely on it a wheel 4 which has a spring-pressed pawl 15 coasting with the teeth of the ratchet. This wheel 4 drives a pinion 8, centre wheel 9, pinion 11 and third wheel 13. Usually a dome-shaped spring 14 is clinched rigidly in an extension 15 of the ratchet wheel 3 and bears upwardly and frictionally upon the wheel 4 to keep the pawl 5 in engagement. This leads to retarding friction when winding the spring 1. In the invention, Figs. 7-9, the dome-shaped spring 18 is detachably secured to the wheel 4 by a slot 20 in the spring and a pin 22 on the wheel 4. The inner part of the spring is shaped as at 19 , 19 and when assembled the part 19 engages in a groove 25 in the extension 15, so that on winding the alarm spring the spring 14 and wheel 4 both remain stationary.

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