IMPROVEMENTS IN DATE CALENDARS to be as follows:-
Year: 1884

page_text: I ALFRED WILLIAM DOERY, of N° 15 New Broad Street, in the city of London,
Engineer do hereby declare the nature of the said invention for "IMPROVEMENTS
IN DATE CALENDARS to be as follows:-
"
This invention relates to improvements in date calendars, the object of the
improvements being to provide a calendar having relatively large figures combined
with a long period reference calendar.
In carrying out my invention I arrange the numerals for the days of the month
in two or more circular series and dispose these series upon one or both sides
of a plate or plates of cardboard or other suitable material preferably circular
in shape.
By dividing the numerals into two or more series I am enabled to increase their
size and visibility.
By rotating each series in its turn behind a slot or slots in a plate or plates
forming a frame of cardboard or other suitable material the month numerals are
consecutively exhibited.
When the circles are disposed concentrically a larger slot is required part of
which I cover with a movable screen thus allowing the numerals of one only of the
concentric circles to be successively exhibited until the screen is readjusted.
When the numerals are arranged on both sides of the plate or plates, in order to
allow of reversing the numeral plates when required without reversing the slotted
plate in front, the numeral plate or plates are loosely carried by flanged sockets or
other equivalent supports which allow them to be rotated and when required
removed for reversal and replaced.
When not required to be reversed in the frame the plates may be held in place
by eyelets or rivets in a well known manner and may then be made to rotate on
the eyelet or rivet as an axis.
The names of the months and of the days of the week may also be similarly
arranged and exhibited on similar plates.
When annular plates are employed they may be placed concentrically.
When the numeral plates are numbered on one side only, I may place the same
face to face and am thus enabled to dispense with the frame, each plate being
slotted accordingly.
A block calendar may be adapted to the slotted plate and this may be extended
to embrace two or more years and, in this case, to save space, I form it of two or
more superimposed sheets in the form of a "tear off" tablet.
DL L
CT 1004

page_text: I ALFRED WILLIAM DOERY of 15 New Broad St. E.C. in the County of
Middlesex Engineer do hereby declare the nature of my Invention for IMPROVE-
MENTS IN DATE CALENDARS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
This invention relates to improvements in date calendars, the object of the
improvements being to provide an adjustable calendar having relatively large date
nuinerals combined with a long period reference calendar.
In carrying out my invention I arrange the numerals for the days of the
months i.e. from 1 to 31 inclusive, in two or more circular series consisting of
complete numerals whether simple (i.e. from 1 to 9 inclusive) or compound
(i.e. from 10 to 31 inclusive) and I dispose these series upon one or both sides
of a plate or plates of cardboard or other suitable material, and preferably circular
in shape.
By dividing the numerals into two or more series I am enabled to increase
their size & visibility in comparison with those hitherto in ordinary use in
rotary calendars.
By rotating each series in its turn behind a slot or slots in a plate or plates
forming a frame, of cardboard or other suitable material the month numerals are
consecutively exhibited.
When the circles are disposed concentrically a larger slot is required, (i.e. extending
over one numeral in each series) part of which I cover with a moveable screen
thus allowing the numerals of one only of the concentric circles to be successively
exhibited until the screen is re-adjusted, when the other circle comes into use.
When the numerals are arranged on both sides of the plate or plates, in order
to allow of reversing the numeral-disc without reversing the frame, the numeral
disc or discs are loosely carried by flanged sockets or other equivalent supports,
which allow them to be rotated and when required removed for reversal &
replaced.
When not required to be reversed in the frame the plates may be held in placo
by eyelets or loose rivets in a well-known way and may then be made to rotate
upon the eyelet or rivet as an axis.
The names of the months, and days of the week may, similarly, be arranged
upon both sides of a plate or plates, but this I find is only practically useful and
necessary when the calendar is so arranged and constructed as to require a reversal
of the frame & discs at intervals, as, for example, in the method illustrated in
Figs 1, 2 and 3 of the drawings accompanying this specification.
When annular plates are employed they are preferably placed concentrically.
When the numeral plates are numbered on one side only I may place them face
to face and am thus enabled to dispense with the frame, the plates being slotted
accordingly as in Figs 15 & 16 In this case I indicate the names of the months
by a "tear-off" tablet attached to each disc but the days of the week cannot be so
conveniently indicated as when a frame is used.
A reference calendar extending, if required, over two or moro years may bo
attached to the frame where a frame is used, or, in other cases, to the disca, in any
convenient position as at z Fig 9.
In the accompanying drawings Figures 1 to 7 illustrate a rotary calendar
constructed according to my invention, and of which
Figure 1 is a front elevation.
"
2 is a side.view, in part sectional.

page_text: 37
the months arranged from right to left instead of as shewn.
6 is a front view of the days of the week disc. The back is similar but
with the days arranged in the reverse direction.
Figures 8 to 12 illustrate the calendar when a movable screen is used and the
series of numerals are arranged concentrically.
Fig. 8 being a front view.
9 a side view, partly sectional.
"
>>
10 a back view, with date disc removed.
"7
11 elevation of date disc.
"
12 do of month disc.
Figures 13 & 14 illustrate the flanged sockets used when the disc is reversed
without reversing the frame, Fig 13 being a back view and Fig 14 a side view
partly sectional Figures 15 & 16 illustrate the method of pivoting the discs
when they are placed face to face, Fig 15 being a front view, and Fig 16 a sido
sectional view.
a, b Fig 1. are the back & front frames between which the discs c, d, e, are
eyeleted so that each may be rotated by hand at the notches f, g, h.
From the 1 to the 17th of each month the face shewn in Fig 1 would be used,
the numerals from 1 to 17 appearing in turn through the slot i. On the 18th the
calendar must be reversed, and the face shewn in Fig 3 thus brought next the
observer, & into use for the remainder of the month, the month numerals. 18 to 31
appearing in their turn through the slot k. In Figures 8 to 12 inclusive c¹ is the
date disc, d the month disc, and e the day of the week disc. The numerals upon c¹
are arranged in concentric series (see Fig. 11) and appear in turn through the
slots . These slots may as an alternative method be joined forming one
elongated slot, which will then extend over part of each circle of figures as shewn
in dotted lines in Fig 11.
The moveable screen s is placed at the back of the frame (Fig. 8) and works
between the frame and the date disc c¹. It is pivoted (at p) on the frame and is
shewn concealing part of the outer series of figures. In this position it is allowed
to remain from the 1 to the 15th of each month, i.e. while the inner circle of
figures or date numerals is appearing through the circular slot or perforation k¹.
On the 16th of each month the screen is rotated on its pivot through a small arc
of a circle until it covers the slot and uncovers the slot 1 when the outer series
of figures comes into use each numeral being in turn exhibited until the end of the
month. This screen may be placed upon the front of the frame but I prefer to
place it in the position described.
In Figs 13 & 14, 1, 1, l, are flanged sockets. The date disc c has the numerals 1
to 17 upon the front face and 18 to 31 inclusive at the back, arranged as in
Figs 4 & 5. Space is allowed in the top socket to permit of lifting the disc over
the lower sockets and thus taking it out of the frame & reversing it before replacing
in the sockets with the reverse side in front.
When in position it is rotated by hand in the ordinary way. The sockets may
be of cardboard or other suitable material and attached in any suitable way to
the frame.
In Figs 15 & 16, c³, c are date discs one having the numerals arranged as in
Fig 4 and the other as in Fig 5.
The numbered sides are placed face to face and the discs eyeleted together
axially. Each disc has a projecting eye n, n¹ for suspending it from a wall etc,
the front disc being suspended whilst the other is rotated, its numerals becoming
visible in turn through the slot in the suspended disc until the series is exhausted
when the calendar is removed from the nail or support and replaced with the
reverse side facing the observer When no frame is used, the days of the week
and the months cannot be shewn in the ordinary way.
In the figures illustrating the date discs month, & day of the week discs
the whole of the numerals, names of months, & days of the week are not shewn

page_text: but sufficient is shewn (in conjunction with the specification) to render the
arrangement perfectly clear.
Having now particularly described and ascertained the nature of my said
Invention and in what manuer the same is to be performed I declare that what
I claim is
1. In rotary date calendars-Arranging the month numerals, from 1 to 31, in
their consecutive order, in two or more circular series, each consisting of completo
numerals whether single (i.e. from to 9 inclusive) or, compound (i.e. from 10
to 31 inclusive) upon one or both sides of a plate or plates of cardboard or other
material, & rotating each series in turn behind a slot or slots in a plate or plates
so that the date for one day only is visible at one time, & during the month, the
whole of the dates are exhibited in their consecutive order.
2. Using a moveable screen when the series are placed concentrically to prevent
the figures in both series from being visible simultaneously.
3. Carrying the discs by flanged sockets which loosely support them and allow
them to be rotated and, when required, reversed.
4. Using discs with a series of figures representing part of the days of the
month upon cach side, and placed between two plates forming a frame, each plate
having a slot or perforation, behind which the disc is rotated and through which
the numerals are in turn visible, & the whole being reversed (i.c. the rear side
brought to face the observer) when it is required to bring the other series
into view.
5. Using two discs pivoted axially & with the numbered sides face to face (as
shewn in Figures 15 & 16) as described.
6. A calendar in which the dates are partly indicated at the back and partly
at the front thus bringing both sides into view at intervals for purposes of
advertisement by inducing the user to reverse it at intervals to ascertain or
indicate the date.
7. The combination of one or more revolving discs indicating the days of the
week or months of the year, or both, with respectively, the arrangements described
in (or referred to in) claims 1, 2, 3, 4 and 6.
8. Respectively, the combinations shewn in Front view in Figures 1, S and 15
and the combination shewn in back view in Fig 13.
Dated this 4th day of October 1884.