A SELF ACTING CALENDAR
Year: 1884

page_text: We DAVID GESTETNER of South Street, Thurlow Square in the County of
Middlesex, Manufacturer, and SALOMON LEVY of 50 Houndsditch in the City
of London, Importer, do hereby declare the nature of the said Invention for
A SELF ACTING CALENDAR to be as follows:-
The Invention has for its object the production of a self acting calendar which
shall for each day of an entire year exhibit the day of the week, the month, the
day of the month, the age of the moon, the rising and setting of the sun and
any other information it may be desired to convey or any one or more of the
above.
For this purpose we print the information above mentioned on a thin sheet of
paper, cloth or other material which is preferably of such a nature as to be but
slightly influenced by the hygrometric condition of the atmosphere.
This sheet we mount upon a pair of rollers to which we give motion by clockwork.
in such manner as to cause such sheet to be advanced at the end of each day a
certain distance so as to bring forward the information for the succeeding day.
This motion is not a continuous one although the clock-work is continually in
action but is intermittently operated in a somewhat similar manner to that adopted
for operating the striking mechanism of a clock. By these means the calendar
sheet remains stationary during the day and is comparatively suddenly advanced
at the end of the day.
We provide the case with a dial divided into 24 hours and we cause a pointer to
travel around such dial in order that the calendar may be adjusted when required
but we do not propose to employ an ordinary dial and minute and hour bands to
indicate the time of day although if desired such can be employed in lieu of, or in
combination with the dial and pointer above described.
The rollers are so formed as to enable the sheet to be readily fixed in position
and removed therefrom when required so as to enable a fresh sheet to be applied
on the commencement of a new year.
Dated January 1 1001
HARRIS & MILLS,
Agents for the Petitioners,
23, Southampton Buildings.

page_text: We DAVID GESTETNER of 25 South Street, Thurloe Square in the county of
Middlesex, Manufacturer and SALOMON LEVY of 50 Houndsditch in the City
of London, Importer do hereby declare the nature of our invention for A SELF
ACTING CALENDAR and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
The invention has for its object the production of a self acting calendar which
shall for each day of an entire year exhibit the day of the week, the month, the
day of the month, the age of the moon, the rising and setting of the sun and any
other information it may be desired to convey or any one or more of the above
items of information.
For this purpose we print the information above referred to on a thin sheet of
paper, cloth or other material which is preferably of such a nature as to be but
slightly or not at all influenced by the hygrometric condition of the atmosphere.
This calendar sheet we mount upon a pair of rollers, that is to say, we first
attach the sheet to one roller and wind it up thereon, we then attach the loose end
to the second or driven roller to which we give motion by any suitable clockwork
mechanism in such manner as to draw such calendar sheet off the first mentioned
roller and wind it up on the second roller and thereby to advance the said sheet
at the end of each day a certain distance so as to bring forward the information
for the succeeding day. Friction is applied to the first mentioned roller sufficient
to retain the calendar sheet in an extended condition and yet of such a light
character as not materially to add to the duty required of the clock work. This
motion given to the calendar sheet is not a continuous one although the clock work
is continually in action but is intermittently operated in a somewhat similar
manner for that adopted for operating the striking or chiming mechanism of a
clock except that whereas the latter is caused to act at every hour and sometimes
at every quarter of an hour, the mechanism for advancing the calendar sheet will
act only once in 24 hours.
By these means the calendar sheet remains stationary during the day and is
comparatively suddenly advanced at the end of each day.
The clock work mechanism may be of any suitable or well known construction
but it is arranged with two driving springs or it might be two weights, one of
such springs or weights being employed for giving motion to the timing portion
of the mechanism as is well understood and the other spring or weight being
employed for giving motion to the roller on which a certain length of the calendar
sheet is wound at the end of each day. The time counting mechanism is so
arranged that at any given hour (say at midnight or at one in the morning) it
shall liberate the mechanism for advancing the calendar sheet, in a similar manner
to that in which any well known striking or chiming mechanism is liberated, when
the said calendar sheet advancing mechanism will continue to act for a given time
and will then be stopped in any of the well known modes of stopping the striking
or chiming mechanism of clocks.
We provide the case with a dial divided into 24 hours and we cause a hand or
pointer to travel around such dial in order that the calendar may be capable of
adjustment when required but we do not propose to employ an ordinary dial and
minute and hour hands to indicate the time of day although if desired such can
be employed, in lieu of or in combination with the dial and hand or pointer above
described.

page_text: The rollers are so formed and fitted as to enable the calendar sheet to be readily
fixed in position and removed therefrom when required so as to enable a fresh
sheet to be applied on the commencement of a new year. For this purpose the
axes of the rollers are mounted in bearings which are capable of being opened to
place therein or remove the rollers and of being closed and locked to retain the
rollers in position and the said rollers are provided with a groove across the face
thereof and a bar to be fixed therein or with other suitable means for connecting
and disconnecting the calendar sheet therewith.
And in order that each day's information may always be brought forward
correctly into position to be seen and the others hidden from sight I print on each
calendar sheet each day's information at gradually increasing distances so arranged
that as the diameter of the roller increases by the winding thereon of the calendar
sheet the information for each day shall be advanced to its correct position between
the rollers.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
A self acting calendar in which the calendar for an entire year is printed on a
sheet of paper or other suitable material which is wound upon one roller and is
connected to a second roller upon which latter a certain length of the said calendar
sheet is wound at the end of each day by clockwork mechanisin substantially as
herein described.