Improvements in Adding Machines.
Year: 1890

page_text: Date of Application, 28th Aug., 1890-Accepted, 18th Oct., 1890
COME LEIE SPECIFICATION.
Improvements in Adding Machines.
I OSWALD BEHER of Gross Guhrau near Graase, Silesia, in the Empire of Germany,
Teacher, 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 adding machines and consists in the combination of parts
hereinafter shown and described and pointed out in the claims.
Reference being made to the accompanying drawings
Fig. 1 is a side elevation and Fig. 2 a plan of the improved adding machine with
the case for covering the mechanism removed.
Fig. 3 is a rear elevation thereof.
Fig. 4 is a cross-section on a broken line showing more particularly the hundred
wheel and parts adjacent thereto.
Figs. 5 and 6 are plan views of the hundred mechanism in two positions.
The adding mechanism is fastened to the base plate A and is covered over by the
removable cover B, which is shown in dotted lines in Fig. 2 having the window C
below which the sum of the added figures appear.
The adding machine consists of a horizontal rotary number-wheel D, which revolves
on the pin E. The lower surface of the number-wheel is provided with 100 vertical
pins F arranged in a circle the wheel being a crown-wheel, and on its upper surface
it is furnished with numbers between 1 and 100 equally spaced, "00" being shown
instead of "100." For the sake of clearness the pins F are omitted in Fig. 1 with
the exception of three and in Fig. 2 only every tenth number is written. The
numbers are so arranged in relation to the pins F, that if the pins were lengthened
beyond the upper surface of the number-wheel, a number would appear between
each two pins Fig. 2.
The number-wheel is propelled by a clock-work G Figs. 1 and 2 and is stopped
by the pawl H in any optional position, said pawl gearing between the pins F.
Underneath the number wheel are located nine keys K¹ numbered 1-9, which are
pivoted on the shaft K resting in the two bearings J.
The spring L which is arranged near the front part of each key K' Figs. 1 and 2
raises each key after it is pressed down, back again into its former resting position
(Fig. 4). The end M of each key K¹ carries a movable vertical pin N, which, when
the key is pressed down, is raised in the plate O, in which it is guided (Figs. 1, 2
and 4).
The distance between the nine pins N, as they are located in the number ring, is .
somewhat less than that between the pins F and the centre lines of the keys K' are
arranged to converge towards the rear. .
Across the keys K' is located the lever P having arms of different lengths which
lever revolves on the standard Q.
The projecting finger R is pivoted on the lever P and it vibrates along the line.
of the series of pins N Fig. 2. To the outer end of the long arm of the lever P is
pivoted the bar S which serves for disengaging the pawl H. The keys 1-9 rest
upon the broad-lever frame T, pivoted at U. The column V is fastened to the
lever frame T close to the pivot U and forms with said frame an angle-lever, which
is connected with the lever P by means of the connecting rod W. If one of the
keys is depressed the lever frame T-V is vibrated, which by means of the rod W
will move the right arm of the lever P in the direction of the arrow a¹ Fig. 2. The
inger R is thus placed with its pivot between two of the pins F at the same time the
bar S has disengaged the pawl H, the clock-work G. will then revolve the large
number-wheel D in the direction of the arrow a² Fig. 2, and carry along the pin R
ntil it touches the respective pin N raised by the key, which was pressed down.
Price 1

page_text: On releasing the key the latter is raised by the spring L. The angle-lever TU V
and the lever P are taken back into the positions illustrated by means of the spiral
spring P¹ operating upon said lever P Figs. 1 and 2. The pin R is thus withdrawn
from between the pins of the number-wheel and brought back again into its resting
position by the volute spring R¹.
X is the hundred-wheel located on the horizontal shaft Y. Said wheel carries the
four pins 1, 2, 3 and 4, which are placed at the same distance one from the other
as the numbers 0, 1, 2, 3 on the periphery of the wheel X, said numbers during the
process of addition showing successively under the window the hundreds of the
sum.
On the shaft Y is fastened a cord Z' wound once round the same, its other end
being attached to a rod controlled by the spiral spring Z.
The hundred-wheel X is rotated thereby towards the left in the direction of the
arrow a³ Fig. 4.
When the spiral spring Z is placed out of action, as explained below, either a
watch-spring a wound around the shaft Y of the small wheel or a weight substituted
therefor will enter into action and will turn the hundred-wheel X towards the right
in the direction of the arrow a¹ Fig. 4.
The indication of the several hundreds (100, 200 etc.) is done by the angle-
lever b c d consisting of the pivot c, the long lever arm b, which is located to swing
above the large number-wheel D and of the split lever-arm d upon which the
pins 1, 2, 3 and 4 successively rest when the spiral spring Z is in action.
The long lever arm of the angle-lever b c d is moved in the direction of the
arrow a Fig. 2, by the pin e which is located on the large number-wheel D, and
is gradually shifted into the position shown in dotted lines in Fig. 2, when the
pin e slides away from it, the latter is brought into its former position of rest by
means of the spiral spring f. The split lever arm d of the angle-lever b c d
consists of two flat tongues and the left tongue is slightly higher than the right one.
At the beginning of the addition the angle lever 6 adopts the position Fig. 5, the
pin 1 of the hundred-wheel X is located then upon the left tongue of the split lever
arm d. If at the window C there appears for instance the number 90, the pin e
will be in such position that commencing to move in the direction of the arrow a³
Fig. 2 it shifts the long lever arm 6 and with the same the whole angle lever b c d
bringing it into the position shown in Fig. 6, so that the pin 1 of the wheel X falls
upon the lower tongue on the right of the lever arm d, without the figure indicating
the hundreds being appreciably moved out of place, the full movement of the latter
taking place after the pin e has advanced so far that the long lever-arm b can pass
it and be drawn back. The lower tongue then slides along towards the right side
underneath the pin resting thereon and the respective pin loses the support thereof,
the hundred wheel X influenced by the spiral spring Z revolves until the next pin
falls upon the left hand tongue.
To adjust the adding machine on zero the slide g is pushed into the machine (in
the direction of arrow a Figs. 1 and 2) pushing back the pawl H by means of said
slide, by this manipulation the slide g and the lever and with it the pin i are
brought into the position shown by dotted lines.
The large number-wheel D which after the described disengaging of the pawl H
is brought into motion by means of the clock-work G, will stop again as soon as the
pink on the wheel D touches the pin on the lever h (Figs. 2 and 4) on releasing
the slide the spring m moves the same back again into its position of rest, and the
pawl H holds the wheel D with No. 0 at the window C. The slide 9 will have also
have pushed back at the same time the spiral spring by means of the projection ! ;
the cord is thus loosened and allows the spring a to come into action to turn the
hundred wheel towards the right in the direction of the arrow at (Fig. 4) whereby
the pin 1 is raised almost into the position of pin 4 shown in Fig. 1, which motion
is made possible by the lever arm d giving way towards the left by the projection /
of the slide g touching also the pin c¹ and thus rotating the pivot c.
The adjustment of the hundred wheel to No. O takes place on releasing the slide q

page_text: when the angle lever b c d is drawn into its original position by the spiral spring fl
and by the action of the spiral spring the hundred-wheel is turned to the left in
the direction of the arrow a³ Fig. 4 until the pin 1 arrives upon the left hand tongue
of the lever arm d.
The apparatus illustrated can indicate the sum of one column of figures to the
amount not exceeding 399 and this suffices for ordinary purposes; if larger amounts
are required, further pins 5, 6 etc. are fixed in the hundred wheel and the corre-
sponding numbers are marked thereon.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
In an adding machine.
1). The combination of a rotary crown wheel, a series of key-levers adapted to be
vibrated by hand, a loosely vibrating finger adapted to be thrust between the pins of
said crown wheel on depression of a key lever, a pin on each key-lever adapted on
depression of the respective lever to be moved into the path of said vibrating finger
to limit the further movement of said finger, whereby the rotation of said crown
wheel is limited to an amount proportioned to the indication on the respective key.
2). The combination of a rotary crown wheel, a series of key levers adapted to be
vibrated by hand, a loosely vibrating finger adapted to be thrust between the pins of
said crown wheel on depression, a key-lever, a pin on each key lever moved on
depression of the key lever into the path of said vibrating finger to limit the
further movement of said finger a pawl for locking the crown-wheel and adapted to
be thrown out of engagement therewith on depression of a key-lever, and a clock-
work or equivalent motor for rotating said crown-wheel.
3). The combination of the crown-wheel D having the series of pins F the key-
levers K¹ with pins N, the lever frame T with arm V, rod W, lever P, vibrating
finger R, bar S, pawl H, and motor G, adapted to operate, substantially as herein
set forth.
4). The combination of a numbered wheel D motor G for revolving the same and
pawl H, with the rod g for releasing said pawl, lever h adapted to be vibrated by
said rod, projection i on said lever and pin k on said wheel D whereby the numbered
wheel may be set at zero substantially as set forth.
5). The combination of the rotary numbered wheel D the pin e on said wheel, the
pivot having the projecting arm b and the double tongued projection plate & the
rotary wheel a having a series of pins and a corresponding series of numbers thereon
substantially as and for the purpose set forth.
6). The combination of the wheel x having pins 1, 2, 3, 4, the angle lever b c d
the projection c¹ thereon, the cord and spring z and the rod g with lateral
projection whereby the movement of the latter compresses the spring and deflects
the angle lever bed and the wheel x is free to be set at zero substantially as set
forth.
ated this 28th day of August 18910.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.