IMPROVEMENTS IN CALENDER MECHANISM FOR TIME-PIECES
Year: 1884

page_text: I OTTO FLEISCHHAUER of N° 9 Mauer Strasse Berlin, in the Empire of Germany,
Artist do hereby declare the nature of my Invention for "IMPROVEMENTS IN
CALENDER MECHANISM FOR TIME-PIECES," to be as follows :-
The improvements relate to a new combination of parts in calender mechanism
for time-pieces where the finger of the calender performs its movement self-actingly
on a fixed dial provided with the names of the days in the week.
My invention may be applied to the dial on the front of a clock or watch or to
the back thereof. To this end I form a ring or rim which is fitted around the dial
of a watch or clock and screwed to the casing thereof, the said dial representing
the hours and minutes and the ring or rim the day in the week, and another ring
or rim provided with an opening & the ciphers from 1 to 31 having a spring catch
fixed thereto and teeth and notches formed near to and on the periphery of the
said ring or rim fits around the first named ring or rim.
At the back of the second ring or rim, a third ring or rim bearing the names
of the months is arranged to rotate and at its periphery provided with notches and
inside with teeth for the purpose of bringing the names opposite the said opening
formed in the second named rim or ring. The finger of the calender is moved by
the clock or watch work and makes a daily travel of 15 of a revolution.
To enable to set the date at the end of the month or any other time, from the
outside of a clock or watch, a suitable arrangement of wheels which can be brought
in and out of gear with the clock of watch work by means of depressing two
buttons, or a head is employed which will either cause the rim or ring provided
with the ciphers from 1 to 31, or rim or ring provided with the names of months
or the finger to be moved to the required position.
Dated this 10th day of Tonnow AT TOO

page_text: I, OTTO FLEISCHHAUER of N° 9 Mauer Strasse Berlin in the Empire of Germany,
Artist, do hereby declare the nature of my invention for "IMPROVEMENTS IN
CALENDAR MECHANISM FOR, TIME-PIECES" and in what manner the. same is to be
performed to be particularly described and ascertained in and by the following
statement :---
The improvements relate to a new combination of parts in a calendar mechanism
for time-pieces where the finger of the calendar performs its movement self-actingly
on a fixed dial provided with the names of the days in the week.
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.
Figs 1 and 3 are front views.
Fig 2. is a section of the calendar mechanism.
The invention may be applied 'to the dial on front of a clock or watch or to the
back thereof. In carrying out my invention I form a stationary ring or rim b
which is fitted around the dial of a watch or clock and screwed to the casing
thereof. The 'said dial representing the hours and minutes, and the rim or ring b
the days in the week. Another ring or rim d, provided with an opening e and
ciphers from 1 to 31 having a spring catch g, fixed thereto and teeth or notches !,
near to and on the periphery of the said ring or rim, fits around the first named
ring or rim b.
At the back of the ring or rim ba third ring or rim, f bearing the names of the
months is arranged to rotate, and provided at its outer periphery with notches k
and at its inner with teeth h for the purpose of bringing the names opposite the
opening e formed in the second-named ring or rim d. The finger a of the calendar
is moved by the clock or watch work and makes a daily travel of 1% of a
revolution.
To enable to set the date at the end of the month or any other time from the
outside of a clock or watch, I arrange two buttons r and m, and a head w, which
are formed with long shanks n the latter sliding in the casing of the watch or
clock and bringing, a suitable arrangement of wheels in and out of gear with the
watch or clock work by means of depressing the said button or turning the head.
If the button m is depressed the wheel u is caused ito descend and gear into
wheel o. The latter gears into wheel p and p into the wheel i, which latter gears
into the teeth h of the ring or rim fand causes the latter to be moved and set as
desired.
If the head wis turned to the right the ring or rim f, connected by means of the
wheels and 2, with the ring or rim d, will be moved forwards until the date
(cipher of the day), will come to stand exactly under the name of the corresponding
week. If such has been done the head w is turned to the left during which time
the ring or rim d is prevented from moving by means of the powl c while the
ring or rim f can be moved by itself until the desired month appears behind the
opening e.
The second button r of the watch work is used to set the finger of the same.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim, is:-
In calendar mechanism for clocks or watches the combination of the calendar
finger a which moves uninterruptedly and self-actingly on the two rotating rings
or rims d and f situated behind each other for the purpose of indicating the date
substantially as described and illustrated in the annexed drawing.
בד
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