Horology: time measuring systems or devices – Chronological – With mechanical or electromechanical driven display
Patent
1982-09-30
1984-01-03
Truhe, J. V.
Horology: time measuring systems or devices
Chronological
With mechanical or electromechanical driven display
368222, 368235, G04B 4500, G04B 1902, G04B 1302
Patent
active
044239653
ABSTRACT:
An elongated clock includes a pair of adjacent, cylindrical, rolls providing one roll with five minute segments indicated and a second roll with twelve hours of morning and evening indicated. These rolls are mounted about a shaft connected with a constant speed motor which rotates the minute cylinder at a constant rate. A gearing arrangement at the end of the shaft couples the shaft with the roll indicating hours and turns the hour roll once every hour. A segmented drive gear is coupled to the shaft and includes a pair of teeth which engage a pinion which in turn has every tooth meshing with a gear attached to turn the hour roll. Thus, one complete rotation of the shaft produces one-twelfth of a full rotation of the hour roll. The pinion gear is prevented from overriding after indexing because a locking rim of the segmented drive gear nestles into gear teeth extensions of every other tooth of the pinion gear.
REFERENCES:
patent: 726276 (1903-04-01), Fitch
patent: 733180 (1903-07-01), Fitch
patent: 2687003 (1954-08-01), Junghans et al.
patent: 2734338 (1956-02-01), Uhlig et al.
patent: 3177645 (1965-04-01), Devanney
patent: 3220174 (1965-11-01), Cappellari
patent: 3898792 (1975-08-01), Insley et al.
patent: 3953965 (1976-05-01), Tobeta
patent: 3979898 (1976-09-01), Werkes
patent: 4044548 (1977-08-01), Rowbottam
Muller Johannes F. J. M.
Van Dongen Joannes A. M.
Flower Terrance
Truhe J. V.
LandOfFree
Elongated clock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elongated clock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elongated clock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1029981