Improvements in Perpetual Calendars.
Year: 1899

page_text: Date of Application, 3rd Jan., 1899-Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Perpetual Calendars.
I, RICHARD RADLEY VERNON, residing on Ridge Road, Summit, in the State
of New Jersey, United States of America, Manufacturer, 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:
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My invention relates to a novel combination and arrangement of parts for
producing a perpetual calendar and in which the part containing the years is
adapted to be maintained in a fixed relation to the ring having the days of the
month and in which the ring having the months of the year is adapted to be
turned alone or with one of the other rings, and one part is held stationary wo
that the other parts may be moved in relation thereto, and in my improvement
all the rings may be separated from one another at any time desired.
I usually place the rings composing the perpetual calendar in an annular recess
or cavity in the under side of a transparent desk paper-weight or else in an
annular recess or cavity formed in the rear of a hanging device of any desired
ornamental configuration, and in which there is a crystal face over the calendar.
The same may, however, be placed upon a card-board foundation.
In the drawing, Fig. 1 is a plan view, and Fig. 2 a cross section at the
line a, a, of Fig. 1, illustrating my improvement and the holder for the same.
Figs. 3 to 7 inclusive are plans of the respective rings composing my improve-
ment in perpetual calendars, and which are more particularly hereinafter
described.
In Figs. 1 and 2, h represents a transparent desk paper-weight having an
annular recess or cavity in the under side. This is shown as a suitable recep-
tacle or holder for the calendar and in which the same may be received and
secured and used to advantage, but the same forms no necessary part of my
invention.
The respective rings forming the perpetual calendar are preferably made of
very heavy paper or light-weight card-board so as to obtain the necessary stiff-
ness and strength.
The ring is provided with a notched edge of smaller diameter for about one-
half of its circumference and with openings 2, 3, preferably in line with the
ends of such reduced diameter, and the surface of the smaller half of said sur-
face between the said openings is preferably provided with radial and concentric
lines forming spaces in which and in radial columns are placed the days of the
month from 1 to 31 inclusive, said surface being equally divided by the radial
lines into seven columns and upon the back of this ring a, I place a stop 4, pre-
ferably of wedge-shape.
The ring, Fig. 4, is extended for about one-half its circumference, and upon
the surface at regular intervals are placed figures representing years progres-
ively, and the edge of this ring is made with V-shaped notches 5, and Fig. 5
s a rear view of the rings and superposed and in the same relation to one
another as they bear in Fig. 1, in which the year 1898 appears in the opening 2.

page_text: It will thus be seen that as each year progresses, the ring is changed one
notch in its relation to the ring a, to change the year.
The ring c is of the same extreme diameter as the ring a, and it is narrow and
provided with divisions that coincide with the projections of the radial divisions
upon the smaller half of the ring, and in these divisions are placed the days
of the week in two sets, and this ringe is provided with projections o, the object
of which is to secure the ring e in a fixed relation to the foundation or other part
holding the calendar, so that while the same is stationary, the other rings may
be turned in relation thereto.
The ring d, Fig. 7, is provided with the months of the year printed upon ita
surface, preferably at equal distances apart and upon radial lines, and the respec-
tive rings are superposed in the order of their letters a, b, c, d, -a, being upper-
most to the visual surface.
The months upon the ring d appear in the opening 3 of the ring
a as will be
seen by reference to Fig. 1. In order to turn the rings with reference to one
another I employ a device connected to the ring d. In its simplest form, this
device preferably comprises a projection from the under side of the disk d,
such as a piece of rubber or a block of felt secured to the ring by a staple 7,
the flat head of which is above the ring and the prongs turned beneath the pro-
jection.
In the operation of the calendar, it will be seen that when the fingers grasp
the projection, that the ring d can be turned so as to bring any desired month
into position at the opening 3 without disturbing the rings a or b.
or
When it is desired to move the ring a, as the months progress, so as to change
its relation to the days of the week upon the fixed ring c, the head of the staple
fastener 7 is brought up into the opening 3. and the ring d
is pressed against the ring a, and the parts are turned together to
the right position, a and b moving together with d, and when the ring a is in
the right position to the ring c, the head of the fastening 7 is moved out of the
opening 3 and the ring d is moved alone to bring the proper month thereon to
the opening 8.
155
It is to be understood that a suitable pivot or center is to be provided in all
cases about which the rings turn, and I prefer to make this projection integral
with the foundation behind which the superposed rings of the calendar are
placed, and it is preferable to hold the rings in place against the foundation by
such a device as the rubber ring 8.
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:
First The perpetual calendar comprising the ring a, having openings 2, 3,
and radial columns of figures indicating the days of the month, the ring b
having figures representing the years and a means for controlling the relation of
the rings a and b to one another, the ring c having the days of the week placed
to coincide with the radial columns of figures of the ring a, and a ring d having
the months of the year, a means for turning the ring d alone or the rings a
and d together, and a means for holding the rings in their superposed relation,
substantially as set forth.
Second: A perpetual calendar comprising a ring a reduced in diameter for
about one half its circumference and having openings 2, 3 and radial and concen-
tric divisions at the reduced portion forming spaces in which are printed radial
columns of figures indicating the days of the month, and a stop 4 on the back
of the ring, the ring having a notched edge to receive the said stop 4, and
figures representing years upon the surface, the narrow ring c and the days of
the week upon the same coinciding with the radial columns of figures of the
ring and projections from the edge of said ring by which it is secured in a
fixed relation to a foundation, the ring having the months of the year upon

page_text: the surface thereof, and a projection from the under surface of said ring and a
projection from the upper surface of the ring, whereby the ring d can be turned
alone by the projection, or the rings a and d be turned together when the pro-
jection is placed in one of the openings in the ring a, and means for holding
the superposed rings to a foundation, substantially as set forth.
Dated tale ora day or January 10
.
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 5A, Market Street, Nottingham.
Agent for the Applicant.