Patent · US Expired

Large-sized clockwork with an electrically driven striking train

US3943700A · kind A · utility

1Cited by
6References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 3, 1974
Grant dateMar 16, 1976
Priority date
Expiry dateApr 3, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04C21/06
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A large-sized clockwork comprising movement, a striking train, an electrical drive mechanism for the striking train, and a control section for the striking train which includes a first control element for actuation of the striking train and a second control element for limiting the striking period thereof. The two control elements include control portions which are each adapted to be sensed by a substantially reaction-free electrical sensing device, which is superordinated to the striking train drive device. Depending upon the choice of the sensing means, the control section has only negligibly small power requirements. Consequently, no restrictions which would be dictated by the control section, now exist in the selection of the movement system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.