Clock dial

A supplemental clock dial for a clock comprising an annular transparent disc mounted centrally on a bushing driven to turn the hour hand, an hour hand on the annular disc, said disc rotating once in twelve hours and including the names of countries or cities around the world and showing the time in those places, the names of said countries and cities being mounted on balanced swinging members so that they are always upright; and including separate members showing the AM and PM indications for each of said countries or cities these members being swingingly mounted on the first named members and including means to turn them 180.degree. each twelve hours, and having weights for keeping the same in upright position for a period of twelve hours, whether AM or PM.

BACKGROUND OF THE INVENTION 
There is a need for a clock which will at a glance tell an observer the 
time in any important section of the world. This has been done using 
individual clocks, but that is expensive and wasteful. 
As far as the applicant is aware these devices are cumbersome and expensive 
and often do not indicate the AM or the PM with regard to countries and 
cities around the globe, and it is the object of the present invention to 
provide a very simple clock dial which will indicate the times in various 
areas. 
SUMMARY OF THE INVENTION 
A conventional clock mechanism having a conventional clock face and a 
minute hand driven in the usual manner is overlain with a circular 
transparent dial mounted to turn by the hour mechanism. On the dial there 
is indicated an hour hand. A series of swiveling counterbalanced rosettes 
are located throughout the area of the circular dial but not obscuring the 
conventional clock face which is observable through the transparent over 
dial. The rosettes indicate various areas about the globe and are swiveled 
and balanced so that they are always erect and read horizontally. Each 
rosette is provided with a pivoted AM PM indicator (a smaller rosette) 
which is provided with a sliding weight to keep it erect. At the 12 
O'clock position of the conventional clock they are engaged by pins which 
cause them to rotate 180.degree. at the same time causing the weights to 
change from one position to another to hold the same as indicated until 
another 12 hours passes.

DISCUSSION OF THE PRIOR ART 
The following patents were noted as being most pertinent: 
U.S. Pat. No. 125,073--a central block face with indicator dials around its 
circumference for time indication in various locations. 
U.S. Pat. No. 369,462--a universal clock showing the longitudinal lines of 
the globe, its 24 hour time periods and the geographical location and time 
of the principal cities of the globe. 
U.S. Pat. No. 1,046,246--a central clock face with indicator dials around 
its circumference which is geared from the center clock for indicating the 
time in each of the various locals. 
U.S. Pat. No. 2,169,956--a world time indicator with AM and PM indications 
from the change in days. 
U.S. Pat. No. 2,535,543--general interest which shows a timepiece with 
multiple dials indicating different geographical times. 
PREFERRED EMBODIMENT OF THE INVENTION 
A clock face of conventional appearance is indicated at 10 and it has a 
minute hand 12 driven in the usual manner and on the shaft or on the 
mechanism that drives the hand there is a pilot or spindle bushing 14 upon 
which is mounted a clear, transparent disc 16. It will be seen that the 
disc 16 overlies and extends beyond the entire clock face which is visible 
through it. The dial 16 is driven by the spindle bushing and rotates once 
in twelve hours. It has an hour hand 18 in fixed rotation thereon and this 
hour hand moves with the disc as do a series of rosettes 20,20. Each 
rosette is mounted to swing on a pivot pin 22, and these rosettes are 
weighted or counterbalanced in such a way that they always maintain the 
position as shown in the drawings in FIG. 1 regardless of the rotation of 
the disc 16. 
On these rosettes there are indications as shown of different cities and 
countries, etc. and since the conventional clock face is fixed, the disc 
rotates (with the hour hand 18) indicating the hours consecutively in 
order and indicating the time in the respective cities or countries as 
indicated. 
Therefore, it is seen that an observer is able to tell at a glance what 
time it is in any of the cities or countries which are indicated on the 
various rosettes 20, and these legends are always readable horizontally. 
Smaller rosettes 24 are also mounted on the pins 22 and behind rosettes 20 
to rotate on the pins. The rosettes 24 are of a kind of dumbbell shape, 
see FIG. 3, and as shown in FIG. 1 they indicate AM's and PM's so that the 
hour from one to twelve is indicated as to each city or country and also 
it is indicated as to whether it is AM or PM at the point and time. 
The rosettes 24 are each provided with a tube 26 in which are movable 
weights 28 and at the twelve O'clock position there are two spaced studs 
30 and 32 which engage the lower part of each rosette 24 at this time or 
position and rotates the same 180.degree.. The rosettes 24 stay in this 
position due to sliding weights 28 for the next twelve hours or until one 
complete rotation is once more made. 
A casing 34 with a protective rim 36 may encompass the entire disc 16 as 
well as the clock mechanism, etc.