Improvements in Perpetual Calendars.
Year: 1897

page_text: Date of Application, 23rd Mar., 1897-Accepted; 10th July, 1897
Improvements in Perpetual Calendars.
I, WILLIS HUSTON COLBY, of Littleton, in the County of Grafton, State of New
Hampshire, Gentleman, in the United States of America, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
My invention has relation to improvements in calendars for office, counting-
house, and general use, and the object is to provide a simple, convenient and orna-
mental device of this kind. To these ends the novelty consists in the construction,
combination and arrangement of the same as will be hereinafter more fully
described and particularly pointed out in the claims.
In the accompanying drawing the same figures of reference indicate the same
parts of the invention.
Figure 1 is a perspective view of my improved calendar;
Figure 2 is a central transverse section of the same; and
Figure is a detail view of the central spindle.
1 represents the frame, and 2 a sheet metal face plate secured to the face of the
frame by the finishing screws 3-3.
4 represents the central spindle, journaled in a vertical oblong hole 5 in the
face plate, and provided at one end with a thumb button 6, its rear end being pro-
vided with a serrated disk 7, which revolves freely when the button 6 is rotated in
either direction.
The face of this disk is provided with the days of the month in numerical order,
and 8 represents an arc shaped orifice in the face plate, by means of which seven
of the dates, corresponding to a week, can be read off on the disk.
Immediately above the orifice 8 is arranged the days of the week as shown, and
which correspond to the seven dates seen through the orifice 8, so that by setting
the disk with one appropriate date in line with the first day of the week on the face
plate, the correct dates for the remaining days of the week can be readily seen at a
glance.
9 is a stationary stud on the back of the face plate, which engages the serrated
rim of the disk, and locks it in place when once adjusted, and prevents its
accidental displacement. To adjust the disk, button 6 is pressed downward in the
oblong hole 5, which releases the upper edge of the disk from the stud 9, allowing
it to rotate freely in either direction to set it, and after it is set, a spring 10,
secured to the back of the face plate, presses against the spindle, holds the serrated
edge against the stud, and prevents its turning.
12 represents a dial on the face plate containing the months in the year, and 13
represents a disk mounted on a stud 14 in front of said dial. This disk is formed
of any suitable opaque material, and a radial recess 15 is formed in said disk
corresponding to a single month in the year. The material which is cut away to
form said recess 15 is bent outwardly at a right angle to form an integral handle 16,
by means of which said disk may be conveniently operated.
In the lower left hand of the face plate is a small rectangular opening 17, and on
the left of this opening is arranged a component part of the figures representing

page_text: the year. In this instance the figures are 189, while the ten digits are arranged
in circular form on a dial 18 mounted on a shaft 19, extending through the face
plate and provided with a thumb button '20, by means of which the dial 18 may be
rotated to present the appropriate figure' to the opening 17 in line with the fixed
figures, and complete the date corresponding to the year.
Although I have specifically described the construction and relative arrange-
ment of the several elements of my invention, I do not desire to be confined to the
same, as such changes or modifications may be made as clearly fall within the
scope of my invention, without departing from the spirit thereof.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
1. A calendar comprising a suitable frame, a face plate mounted on said frame,
an are shaped orifice in the face plate, the days of the week arranged above said
orifice, a disk mounted on a shaft in said face plate and provided with an operating
button, and having the days of the month arranged on the face of said disk so that
any seven of them in regular order may appear through said are shaped opening,
as and for the purpose set forth.
2. A calendar comprising the frame, the face plate secured thereto and provided
with the arc shaped orifice, the days of the week arranged above said orifice, a
rectangular opening and a component part of the figures of the year arranged to
the left of said opening, and a dial 12 containing the months of the year arranged
in circular form on the face of said dial, in combination with the rotating disk 7
containing the days of the month, the disk 13 mounted in front of said dial and
provided with a radial recess 15 and integral handle 16, and a dial 18 containing
the digit numerals arranged in line with said rectangular opening, as and for the
purpose set forth.
3. A calendar comprising the frame, the face plate 2 secured thereto and pro-
vided with the stud 19 and arc shaped orifice 8, the days of the week arranged
above said orifice and having oblong hole 5, in combination with the spindle 4
mounted in said hole, the spring 10, in contact with said spindle, the serrated disk 7
mounted on said spindle and having the days of the month arranged on its face,
and the thumb button 6 secured on the outer end of said spindle, substantially as
and for the purpose set forth.
4. A calendar comprising the face plate. provided with an integral dial 12 con-
taining the months of the year, an opaque circular disk 13 mounted in front of said
dial and provided with a radial recess 15 and an integral handle 16 bent at a
right angle from the material removed from said recess, substantially as shown and
described.
Dated this 93rd day of V 1007
WHEATLEY & MACKENZIE
40, Chancery Lane, London, W.C., Agents.