An Apparatus to be Affixed to Clocks which are Worked by Weights for the Purpose of Indicating the Days, Months, and Dates.
Year: 1891

page_text: Date of Application, 4th Dec., 1891-Accepted, 9th Jan., 1892
COMPLETE SPECIFICATION.
An Apparatus to be Affixed to Clocks which are Worked by
Weights for the Purpose of Indicating the Days, Months, and
Dates.
I, ANDERS ERIKSSON, Ironmonger, of Lindesburg, Sweden, 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 :-
This invention relates to an apparatus which is to be applied to clocks worked by
weights for the purpose of indicating the days, dates and months.
The apparatus consists of a plate on which the names of the days are placed,
apertures being made in such plate, one for each day, in which said apertures the
dates appear.
The plate is arranged vertically in relation to the weight of the clock, so that the
weight, when descending, travels along the plate.
The weight is provided with a hand or indicator and the plate is so divided that
the weight with the hand passes the names of the days on the plate in succession
as the days pass on.
In the accompanying drawing
Fig. 1 is a front elevation of the plate;
Fig. 2 is a transverse vertical section through the same, and
Fig. 3 is a detail view (shown in three sections) of the endless tape bearing
the dates.
The plate A having a channel-shaped section is preferably made of sheet iron,
and at its lower part at each side is provided with a slot A' for the purpose of being
slid on the top of an angle base B fixed in an upright position to the bottom of the
clock-case.
At the front the plate is divided into seven equal parts in the direction of its
height, the divisions corresponding to the seven days in the week.
The upper part of each division is made black, indicating night, and the lower
half white to denote day.
On the black parts the names of the respective days are produced, and in the
light ones are the openings C through which the dates become visible.
The figures of the dates are printed on an endless tape D, which passes round
rollers Di behind the plate A and fitted into the recess at the back formed by the
side-edges of such plate.
The figures on the tape are so arranged that they appear in the usual order
through the apertures C and in such a way that same can be regulated by turning
the tape round to suit the different months.
For turning the tape round there is a button E fixed to the extended axis of a
roller D' over which such tape passes.
Figure 3 shows the tape unfolded and divided into three parts.
To conveniently connect the hand or indicator F to the clock-weight, an open
ring fitting the latter is applied to same, or as shown in the drawing, the indicator
is applied to the weight by means of a bracket connected to a plate F
A small quantity of moistened gum deposited on the plate, is sufficient to make
the plate adhere beneath the weight.
The above mentioned bracket may even be provided with a joint for enabling the
hand to press closely against the plate, in case of the weight twisting.
At the commencement of the week the clock is wound up in such a way that the
hand is opposite that portion of the plate A corresponding to Sunday.
The plate may be suitably divided into hours and as the weight rises the hand
will be regulated, so as to be opposite the hour when the winding up takes place.

page_text: The tape is turned by the button E so as to cause all the dates for the coming
week to appear through the apertures C.
At the top of the plate is a recess or box G containing six pieces of card H,
with the names of the months on their opposite sides, the use of same being to
indicate the month.
This is effected by turning over the card which at the time represents the month
so that it appears through the aperture K made in the plate opposite the recess or
box G.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
An apparatus to be applied to clocks which are worked by weights and serving
as a calendar, consisting firstly of a plate fixed vertically in relation to the weight
and provided with apertures which correspond to the days, and which bears the
names of the days, and of an endless tape placed behind the plate and revolving on
rollers, such tape being furnished with figures, which appear through the apertures,
and finally, of a hand or indicator pointing towards the plate and fixed to one of
the weights, the whole with the object of causing the hand, during the descent
of the weight, to successively indicate the names of the days, while the dates
(which are changed by means of the revolving tape) simultaneously appear through
the apertures in the plate.
Dated this 4th day of December 1891.
ALLISON BROS.,
Agents for the Applicant.