Year: 1893

page_text: Date of Application, 30th Dec., 1893
Complete Specification Left, 1st Oct., 1894-Accepted, 22nd Dec., 1894
I GEORGE NIVEN of Shiantelle, Aldrington Road, Streatham in the County of
Surrey, Bank Manager, do hereby declare the nature of this invention, to be as
follows:-
According to my invention I construct a machine for adding any desired number
of columns of figures.
The apparatus consists of a box or frame of a convenient size and form containing
a number of endless belts or the like which are mounted in such manner that they
are capable of being moved independently of each other. Each band is provided
with a number of holes at equal distances apart to permit of gearing with a pair of
wheels provided with studs which project through the said holes and thus prevent
slipping and also to ensure that the distance travelled by the wheels shall always
correspond to that over which the band passes and further to admit of the insertion
of a style or the like. It is however evident that any other suitable means for
communicating motion to the bands may be employed. The face of the box is
provided with a series of slots for the insertion of the style and next to each slot,
and corresponding to the holes visible in the bands, are series of numbers, so that if
the style be inserted in a hole opposite the number 6," for instance, and be drawn
down, say a distance of six holes, the band, on moving, communicates motion to a
series of wheels which again actuate a figure drum, for showing the "totals" in the
box corresponding, and this drum is provided with a series of figures of which "6
will show through a hole in the box. If the style be then inserted in the hole in
the band opposite to the figure "3" and the band drawn down the requisite
distance, the aforesaid figure drum will be revolved until the figure visible is "9."
In order to permit of "carrying," there is connected to one of the wheels of each band
a wheel with only one tooth so that it actuates the next band the distance of one
bole when, say, the number "10" is to be shown. Any desired number of columns
may be used all according to the necessities of the work to be performed and pence
and shillings may also be provided for, arrangement being made for "carrying
one forward on to the next column of pounds, when 20 shillings would otherwise be
registered, or one shilling from the pence column, when otherwise 12 pence would
be registered.
"
"
Means are provided for bringing back all the numbers on the figure druns to
zero by arranging each drum with a ratchet and stop arrangement so that by
continued turning of their spindle, the drums are brought back to zero and remain
there until, by working the apparatus, they are altered.
Dated the 30th day of December 1802
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.

page_text: I, GEORGE NIVEN of Shiantelle, Aldrington Road, Streatham in the County of
Surrey, Bank Manager 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 :-
According to my invention I construct a machine for adding any desired number
of columns of figures.
In order that my said invention may be more easily understood I will proceed to
describe one modification thereof with reference to the accompanying drawing of
which
Figure 1 is a plan.
Figure 2 is a similar view with the top plate a' removed.
Figure 3 is a vertical section on the line A--B Figure 2, shewing the gearing
for units of pounds.
Figure 4 is a vertical section on the line C-D Figure 2, showing the gearing
for the shillings, and
Figure 5 is a vertical section on the line E-F Figure 2 showing the gearing for
the pence.
The apparatus consists of a box or frame a with one side removable for
permitting of the insertion of the various spindles carrying the gearing, and
preferably with removable top a¹ and bottom a for facilitating adjustment and
cleaning of the internal parts. The box is of convenient size for use on a table,
ledger or other place and may suitably be provided with a small flap c hinged
at for the purpose of marking or keeping properly in view (when faid
horizontally) the particular column or line of figures being added. Inside the
box are a number of endless belts or chains and d' and d, the two latter being
for shillings and pence respectively. These bands or chains are mounted in such
manner that they are capable of being moved independently of cach other.
Each band is provided with a number of holes at equal distances apart (in the
drawing chains are shown with a similar space in each link) to permit of
gearing with a pair of wheels e el revolving loosely on the spindles and
provided with studs or cogs which project through the said holes in the band
(or as shown spaces in the links of the chains) and thus prevent slipping. By
these holes or spaces is further ensured that the distance travelled by the wheels
shall always correspond to that over which the band or chain (hereinafter merely
designated the chain) passes and further these spaces admit of the insertion of
a style or the like.
Although chains with different sized links for the pounds and shillings have been
shown it is evident that they may all be of the same size but in that case of
course the slot in the cover a¹ for the shillings must be made longer in
proportion.
The top a' of the box a a a ba² (hereinafter called the box a) is provided with a
series of slots,,, for the insertion of the style and next to each slot, and
corresponding to the spaces visible in the chains, are series of numbers, so that if
the style be inserted in a space opposite the number "6," for instance, and be
drawn down, say, a distance of six spaces, the chain, on moving communicates
motion to a series of wheels consisting of the wheel in one with or fixed to the
wheel 29 the intermediate wheel i, and the wheel & in one with or fixed to the figure
drum . The wheels have each one tooth missing for a purpose to be hereinafter
described. The wheels are all loose on their spindles, that is to say, the wheels e

page_text: and are loose on the spindle or axle g, the intermediate wheel i is louse on the
axle and the figure drum and wheel are loose on their axle . When the style
has been drawn down a distance of six spaces the motion is communicated as aforesaid
to the figure drum which shows through the hole p in the box a. If the style be
then inserted in the hole in the band opposite to the figure "3" and the band be
drawn down to the bottom of the slot f, the aforesaid figure drum will be revolved
until the figure visible is "9." In order to permit of "carrying," there is connected to
one of the wheels of each band a wheel which gears with a wheel m loose on
the spindle and having a sleeve m and disc m² on which latter is mounted a
pivotted tooth or spring pawl m³. If one of the wheels be then revolved from
zero by drawing down the band from the top by means of a style inserted opposite
the number 11 as far as it will go (supposing the "pence" are being dealt with) the
figure drum will register "11." Supposing the style be then inserted in the space
opposite "1" and drawn down the ""will be visible on the figure druin and at
the same time "1" will appear in the next hole p to indicate one shilling because
when the pence band is pulled down to register "0" after the figure drum has exposed
the "11" the pawl m³ has made a complete revolution and gearing with the wheel e³,
attached to or made in one with the next wheel el, moves it the distance of one
tooth, thereby, as aforesaid, by means of its chain d' causing the figure drum
thereof to render visible the "1."
''
In like manner supposing the shillings drum /
registers 19 it is evident that if the chain be drawn down one space a
appear and "1" be registered in the next space for pounds and so on.
In order to
correct any little irregularities in the working of the apparatus which might cause
the figure drums to move a little more or a little less than they should, springs q
inay suitably be provided as best shown in Figure 3, the ends of which springs are
formed tooth-shaped so that they take into the teeth of the wheels k. The springs
are screwed down at their other ends to a cross bar q¹ extending across the box
which has fixed to it in a similar manner another series of springs r the tooth-
shaped ends of which take in between the teeth of the wheels . It is evident that
the springs and or their equivalents may be mounted in any other position or
place as long as a suitable check on the cog wheels is retained so as to ensure, as
much as possible, the proper working of the apparatus. The springs & serve to
prevent any slackness in the chains or belts by pressing against same. The number
of teeth in the wheels and the chains is arranged as shown in the drawing as an
example for millions, hundreds of thousands tens of thousands, thousands, hundreds,
tens and units of pounds, shillings and pence, but any other arrangement may
naturally be made without departing from the invention.
9
"O" will
Means are provided for bringing back all the numbers on the figure drums / to
zero for instance by fixedly mounting a series of tooth wheels s on a spindle s¹ which
is provided with a milled head s². The spindle s' is capable of freely revolving in
holes in two of the sides of the box and normally the wheels s are held away
from the chain wheels by means of the spring which tends to push the spindle s¹
to the left as much as possible, until in fact the shoulder touches the side of the
box .
If however the milled head s² be pushed in towards the box and revolved
the wheels s will gear sufficiently with the wheels h to cause the latter to revolve
and consequently the figure drums 7, until the missing tooth on the said wheels his
reached, and the figure drum shows the "0" through the hole in the top a' of
the box. It is evident that the wheels h and i mesh so well that the fact of a tooth
being missing or nearly so does not affect their gearing. As soon as the figure
drums all show the "O" the machine is again ready for use.
P
The construction of the machine may be simplified by dispensing with the figure
drums and the tooth wheels k which are in one therewith and also with the
intermediate wheels i. In this event the springs q are of course arranged differently
and so as to take preferably in between the teeth of the wheels h. The said teeth
may have engraved or embossed on their outer circumference the numbers as
illustrated with regard to the figure drums or figure drums may be mounted on
the same spindle and in one with the wheels h.

page_text: 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 I
claim is :-
1. An adding machine consisting of a box or frame containing a number of
endless chains or belts suitably mounted and capable of being moved independently
of each other and means for actuating said chains or belts so as to cause them to
communicate their motion to a series of figure drums mounted independently of
each other and the means for "carrying" consisting of gearing for causing the next
following chain or belt to move the distance of one space, when, in working the
machine, a "0" is shown substantially as set forth.
2. The construction of adding machine as shown on the drawing.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.