Year: 1886

page_text: Date of Application, 30th Dec., 1886
Complete Left, 22nd Sept., 1887
Complete Accepted, 25th Oct., 1887
Time in the Various Parts of the Globe.
I, FERDINAND BOSSHARDT, of the firm of F. Bosshardt & Co. of 4 Corporation
Street Manchester in the County of Lancaster, Engineer & Patent Agent, do hereby
declare the nature of this invention which has been communicated to me from abroad
by Sauveur Chambon & Raphael François both of Gênes, Italy, Watchmakers
to be as follows:-
The object of this invention is to ascertain on a dial of a clock or watch, the
difference in the time, between any points of the globe on a given meridian being
cited.
The invention consists in the employment, around the axis of the finger, of a rotary
dial on which are marked 24 hours, viz. 12 hours of the day, on the left and 12 hours
of the night on the right half of the dial, the two different halves being distinguished
by being shaded light and dark respectively.
The clock or watch work is caused to rotate in a reverse manner to that of others,
that is to say, from right to left, and the mechanism is calculated to make one
revolution in 24 hours.
The said dial is rotated by the clock or watch work on another stationary dial,
sub-divided into several concentric zones, a, b, c, d, e, f, and devised geometrically in
360° of longitude, each degree having been subdivided into 60 minutes first.
We carry on this dial according to their degree of longitude, East, West, of the
given meridian; the zone a contains in figures the true longitude of each place, in
degrees, & first, & second minutes.

page_text: The zone contains the names of all the capital towns of the different countries
in the zone c, the chief places, the towns and the most remarkable parts; in the zone d
the secondary towns and the principal islands; in the zone e the volcanoes, capes, bays,
etc.; in the zone f we cite, in figures the various horary differences in reference to
the adopted meridian, and in reference to the degrees of longitude marked in the
zone a. As an addition are indicated with the conventional signs, the observatorys
& known volcanoes, with figures of the altitudes, & in black all that which
concerns the Austral Hemisphere.
A fixed needle serves to render the conventional meridian more visible.
Dated this 29th day of December 1886.

page_text: I, FERDINAND BOSSHARDT of the firm of F. Bosshardt & Co. of 4 Corporation Street
Manchester in the County of Lancaster, Engineer & Patent Agent, do hereby declare
the nature of this invention which has been communicated to me from abroad by
Sauveur Chambon & Raphael François, both of Gênes Italy, Watchmakers and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of this invention is to ascertain on a dial of a clock or watch, the
difference in the time, between any points of the globe on a given meridian being
cited.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference similar
letters indicating like parts throughout the figure.
The invention consists in the employment, around the axis of the finger, of a rotary
dial A, on which are marked 24 hours, viz., 12 hours of the day on the left, and
12 hours of the night on the right, half of the dial A, the two different halves being
distinguished, by being shaded light and dark respectively.
The clock or watch work is caused to rotate in a reverse manner to that of others,
that is to say, from right to left, and the mechanism is calculated to make one
revolution in 24 hours.
The said dial A is rotated by the clock or watch-work on another stationary dial B
sub-divided in several concentric zones, a, b c d e f, and devised geometrically in
360° of longitude, each degree having been sub-divided into 60 minutes first.
This dial carries, according to their degree of longitude, East, West, of the given
meridian; the zone a containing in figures the true longitude of each place, in
degrees, and first & second minutes.
The zone b contains the names of all the capital towns of the different countries ;
the zone c the chief places, the towns and the most remarkable parts; the zone d the
secondary towns and the principal islands; the zone e the volcanoes, capes, bays, etc.;
in the zone, we cite in figures, the various horary differences in reference to the
adopted meridian, and in reference to the degree of longitude marked in the zone a.
As an addition are indicated with the conventional signs, the observatorys and

page_text: known volcanoes, with figures of the altitudes, and in black all that which concerns
the Northern, and in red, all that concerns the Austral, hemisphere.
A fixed needle serves to render the conventional meridian more visible.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim, is :-
A clock or watch indicating the difference of time in the various parts of the globe,
constructed and operated substantially as and in the manner herein before described
and illustrated by the annexed drawing.