Horology: time measuring systems or devices – Plural time zones
Patent
1982-09-29
1984-08-07
Roskoski, Bernard
Horology: time measuring systems or devices
Plural time zones
368 23, 368 24, G04B 1926
Patent
active
044640587
ABSTRACT:
A novel twenty-four hour clock providing a continuous display representative of the rotation of the Earth relative to the heavens, and the changing position of illustrated geographic areas of the Earth relative to the fixed position of the Sun, thereby providing the viewer with a visual display of the local time of day and also the time of day in each of said geographic areas. The present clock also includes a fixed midnight mark representative of a location in the heavens, 180.degree. around the Earth from the fixed location of the Sun, coinciding with the occurrence of midnight at each geographic area of the Earth as said geographic area passes thereby, the geographic area in which the Fiji Islands and New Zealand are located being designated the International Date Line. The present clock is characterized by the presence of a progressing day-indicating means which provides a clear visual representation of the geographic portions of the Earth experiencing the new day and the old day as concurrently experienced in different geographic areas of the Earth, thereby providing the viewer with a clear visual indication and, if desired, digital identification of the local time and calendar day and the time and calendar day in all geographic areas of the Earth.
REFERENCES:
patent: 536504 (1895-03-01), Arriga
patent: 694256 (1902-02-01), Day
patent: 2603940 (1952-07-01), Packard
patent: 2721442 (1952-06-01), Pettigrew, Sr.
patent: 3091915 (1963-06-01), Pawl
Roskoski Bernard
Tully Thomas L.
LandOfFree
World time and day indicator 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 World time and day indicator clock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and World time and day indicator clock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-601661