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Патент USA US2105520

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Jan. 18, 1938.
B. cARLsTROM ET AL
CALCULATING MACHINE AND THE LIKE
‘ Filed Aug, 17, 1937
{2 34% V
37
2,105,520
Patented Jan. 18, 1938
2,105,520
UNITED STATES PATENT ‘OFFlCE‘
2,105,520
'
CALCULATING‘MACHINE AND 'mn LIKE
Bengt (larlstriirnv and Roy Hanson, Atvidaberg,
Sweden, assignors to Aktiebolag‘et Fa'cit, At
vidaberg, ‘ Sweden,
a joint-stock company of
Sweden
Application August 17, 1937, Serial No. 159,483
In Germany August 18, 1936
15 Claims.
The chief object of this invention is to create
a very simple and reliable tabulating device for
calculating machines and the like.
-
Another object of this invention is to render
.the tabulating device in such machines very com
pact.
-
.
Another object of this invention is to render the
locking means for preventing . incorrect ma
nipulation very simple.
‘10
super?uous.
is
,
Another object of this invention is to render the
ordinary locking rail and locking pawl or arm
.:
-
o
Other objects of this invention will be evident
‘from ‘the following speci?cation and claims.
One embodiment of this invention is illustrated‘
in the annexed drawing.
Fig. lshows a‘ front view of a tabulating de
vice in accordance with this invention.
Fig. 2 is a vertical section on the line IL-II in
Fig. 1.
Fig. 3 is a section on the broken line III-III in
Fig. 2.
>
a
'
The machine shown may be constructed, in
its principal features, for instance, as shown and
described in United States Patent application,
Serial No. 431,872, ?led by Karl Viktor Rudin on
(see German Patent No.
- February 27, 1930
535,576), and‘United States Patents No. 1,927,771
and 2,068,899.‘ However, in every multiplying
machine the results register and its actuator
must be moved in relation to each other and
"analogously the quotient‘ register and its op
‘ "erator must be moved in relation to each other
(Cl. 197-49)
keys
1 extends.
in bothThe
directions.
shaft ‘I limits
The keys
theare
motion
retained
of the
in
their positions of restby means of tension springs
8. On pins 9 of the keys pawls I0 and I I are piv_
, otally mounted which are pressed against the side 5
surface of a toothed wheel I3 by tension springs
I2. The ends of the tension springs I2 are at
tached to pins I2a on the pawls and to pins I2b
on the keys, respectively. The key 5 has the pawl
I0 and the key 6 carries the pawl II.
10
The gear wheel I3, which is rotatably mount
ed on theshaft I3a in the machine frame, has a
number of pins I4, ?ve of them being provided in
the embodiment illustrated. The wheel I 3 meshes
with another toothed wheel I5 having two dia- 15
metrically opposed pins I6. 'The wheel I5 is jour
nalled on the stationary pin I512 on the machine
‘frame. The ratio of gear of the wheels l3 and
I5 is so chosen that a rotary motion ‘of the wheel
I3 through anangle corresponding to the ‘pitch go
of the pins I4, i. e. one-?fth of a, revolution, or
72° causes the wheel I5 to rotate through an
angle corresponding to one-half revolution, or
180°.
.
~
'
The pins I6 engage a toothed rack ‘II which 35
is pivotally mounted on the pin I8 of the carriage;
I., Adjacent to the ends of the rack I1 rigid
abutments I9 are provided onthe carriage, said
abutments projecting at right angles to the row
of teeth of the rack. The tabulating keys 5 and 30
6 each have a projecting arm 20 which on the
depression of the key is moved upwardly to en
'(cf. the United States Patent application Serial gage a pin .2I on a lever 22. This lever ispiv
otally mounted on the ?xed shaft 23 and provided
35 No. 756,823, ?led on December 10, 1934).
For this , with a pin 24 extending at right angles to the pin 35
reason ‘tabulating means are necessary in all such
machines. Also in modern ten-key adding ma
chines tabulating means are often used.
Referring now to the drawing, I indicates a dis
40
placeable carriage which is guidedfor rectilinear
cured on the shaft 21 which may be the main
motion on two shafts 2 which are rigidly se
or driving shaft of the machine or a shaft posi- 4°
cured to the stationary frame 3 of the calculating
‘
2| and engaging the rack I‘! from above. The
arm 22 is ‘also provided with a projection or lug
25 adapted to engage a recess in the disk 26 se
machine.
a
In the carriage I a shaft A is journalled which
45 in‘ well-known manner carries a totalizer, for in
tively connected with the driving shaft for rota
.tion with the same.
In a manually. operated
machine, the shaft 21 may be the handle or
crank shaft, on which the actuator is journalled. '
stance a results register or a quotient register In a power-driven machine the shaft 21,may be 45
'or both, or an actuator, such as a pin wheel or a shaft driven by the motor, such as shaft 5 in
' Odhner rotor, a selector, etc., therefor.‘ If' the U. 5. Patent No. 2,068,899. The pin 24 is pulled
totalizer is on the carriage, the actuator is sta- , ‘into engagement with the top portion of the rack
50 tionary, at least during the calculating opera
tions, and vice versa, as well-known in the art.
On a shaft 4, which is also stationarily se
cured to the frame 3, two step-tabulating keys 5
and 6 are rockably journalled, having each an
oblong slot ‘Ia through which a stationary shaft
I‘! by atension spring 28, whose lower end is 50
secured to the pin 28;: on the machine frame.
At their rear ends the keys 5 and 6 are provided
with curved portions or cams 29 ‘bearlng‘on a
lever 30!) which is pivotally mounted on the sta
tionary pin 30 in the machine frame and has two 55
2
2,106,520
.
projections 3| and 32 in engagement with the
cams 29.
At its upper end each cam 29 has a recess 23a.‘
engaged by the projection 3| or 32, respectively,
if the lever 300 is swung correspondingly.
"
_
About a pin 31 on the carriage i a double
armed lever 33 is pivotally mounted. At its up
per free end this lever carries a handle 34 or the
like, while the lower end of the lever carries a
10 pin 35 entering a recess 36 oi the rack 11., The
recess 36 is angular, that is has two inclined sur-_
ordinarily used, and which ~is provided with a
series of recesses, one for each tabulatlng posi
tion, adapted to be engaged by a slide or an arm
that must be brought out ‘of engagement every
time when a tabulation is to be made.
What ‘we claim is:—-
.
1. In a tabuiating device for a calculating ma
chine and the like, in combination, a rectilinear
ly movable carriage, a disk, pins on said disks,
means for rotating saiddisk step-by-step, and a 10
toothed rack on said carriage meshing with at
faces along which the pin," lsadaptedto 'slide.
The device described operates as 'follows:
When one or the tabulatlng keys is depressed,
15 for instance, the right hand key 6, the corre
least one of said pins, said rack being movable
at an angle to the rectilinear path of motion of
said carriage, 'while still remaining in mesh with
15
one of said pins.
‘ 2. In a. tabulatlng device for a calculating ma
sponding pawl II is lifted and engages the adja
chine and the like, in combination, a rectilinear
cent pin l4, so that this pin and thus the gear - ly movable carriage, a disk, pins on said disk,
wheel l3 are‘ rotated through an angle ‘corre
means for rotating said disk step-by-step, and
sponding to the pitch of the pins, which is 72°. a toothed rack on said carriage meshing with 20
Consequently, the wheel l5 will be rotated-half a ‘at least one of said pins‘, said rack being
the
revolution ‘causing the pins IE ‘to move
_
journalled on said carriage and rockable between
toothed rack l1 and thus also the carriage I one a position parallel with the rectilinear path of
step, that is a distance corresponding to the pitch said carriage and a'position at an angle to said "Y
of teeth of the rack II, to the right in Fig. 1.‘. path, and reversely, while still remaining in mesh
25 The toothed rack l1 thenyields accordingly, that
with one of said pins.
'
t
j
is, it is swung somewhat upwards. Towards the
3. In a tabulating device for a calculating ma
end of this motion of the key the abutment 20 chine and the like, in combination, a rectilinear
strikes against the pin 2|‘ and, with the aid of iy movable carriage, a disk, pins on said. disk, 1
the spring 28, forces'the lever 22 to swing clock
means for rotating said disk step-by-step, and 30
wise
in
Fig.
2,
so
that
the
pin
24
forces
the
rack
a toothed rack on said carriage meshing .withat
80
I1 down into its lowermost or locking position. least one oisaid pins, said rack being displace
When a tabulator key is depressed and the rack able on said carriage substantially ‘in, parallel to
I‘! is raised or swung upwards as a result there
of it swings the lever~22 accordingly, causing the
' itself and at an angle to the rectilinear path of I
said carriage, between a position of rest and an
projection 25 to enter the recess of the disk 26,
so that the main shaft 21 of the machine cannot
off-normal position, while still remaining in
be rotated, while tabulation is beingwe?ected.
Tabulation having beenv terminated, the disk 26
4. In a tabulatlng mechanism for calculating
is released in the manner indicated above when
the lever 22~is vswung in a ‘clockwise direction,
_ Upon depression of the tabulatlng key 6 the
corresponding cam 29 will actuate the projection
32, so that the projection 3i'is swung in against
“the rear side of the pawl l0 and thus moves the
latter out of the way of the adjacent one of the
'pins It. At the same time, the _. projection 3 I
' engages the recess 29a of the key 5, so that the
' ‘latter is locked and cannot be depressed.
mesh with one of said pins.
-
machines and the like, in combination, a car».
riage displaceable in a rectilinear path, asta 2:0
tionary pivot, a disk rotatably journalled on. said
pivot,'pins on said disk, manually operated means
-for rotating said disk step-by-step, a- toothed
rack on said carriage meshing with atleast one‘
of said pins, said rack being movable at, an
43
angle to therect'ilinear path of said carriagev
from a position of rest to an off-normal position
and back again, while still remaining in mesh
with one of said pins, and a restoring member
50
for restoring said rack to its position of rest.
I When the tabulator key _5 is depressed the car
riage will be tabulatedin an analogous manner
-. 5. In a tabulatlng-mechanism for calculating
step-by-step to the left, the pawl ll being then machines and the like, in combination, a car
vpressed out of the path of the adjacent pin l4 riage displaceable in a rectilinear path, a sta
' through the action of the arm 32., ,Total tabu
tionary pivot, a disk rotatably journalied on said
lation for division is effected by means of the pivot, pins on said disk, manually operated means 55
' arm 33'which, when actuated, by its'pin 35 lifts
for rotating said disk step-by-step, a toothed
the rack H from the pins 16. The carriage may rack on said carriage meshing with at least one
be'displ'aced directly by means of the‘handle ~34
in'any‘ direction, because the pin 35 then slides
on the ‘corresponding oblique‘surface of the re
60 cess 3G and lifts the rack l1.
2
'
Certain modi?cations may be made in the y de
I vices illustrated and
described, without depart
’ ingfrom the principle of this invention.
Thus,
the arm 33 may be operated from a specialtotal
65 tabulatingor division key. . The projections I9
= atthe ends of the row of teethof thev rack H,
.which I serve to limit the tabulation by prevent
ing the wheel l5 from rotating, when the end of
the tabulatlng motion in both directions has been
70 reached, maybe arranged on the irame o! the
machine.
' It is to be observed that the tabulatlng rack ll
_
carriage in its position
, also serves to keep the
when tabulation does not take place.“ This ren
ders the special locking bar super?uous which is
of said pins, said rack" being movable at an
angle to the rectilinear path of said carriage from
a position of rest to an off-normal position and 60
~ back again, while still remaining in mesh with
one of said pins, and a restoring spring for re
storing said rack to its position of rest and for
counter-acting its motion from said position ‘of
vrest.
'
'
3
<
6. In a tabulatirrg mechanismv for calculating
machines and the, like, in combination, a car
riage displaceable in‘ a rectilinear path, a sta
tionary pivot, a disk rotatably journalled on said
pivot, pins on said disk, ‘manually operated 70
means. for rotating said disk step-by-step, a
toothed rack on said carriage meshing with at
least one of said pins, said rack being movable
at an angle to the rectilinear path of said car-.
riage from a position of rest to an off-normal 15
.-
iv
-ot.ir
aioauao
position and back again, while still remaining in
'
-
I 3
mesh with one oi’ said pins, and a main driving
riage movable along said guide, a ?rst toothed
shaft carrying a locking disk, said locking disk
wheel, pins on said ?rst wheel, atoothed rack on
said carriage meshing with at least one of said
having a recess in the path of a part of said
lever to be engaged thereby, when said lever is
rocked by said rack. '
\
7. In a tabulating mechanism for calculating
machines and the like, in combination, a carriage
displaceable in a rectilinear path, a stationary
'10 pivot,
a'disk rotatably journalled on said pivot,
pins on said disk, manually operated means for
rotating said disk step-by-step, a toothed rack
on said carriage meshing with at least one of
said pins, said rack being movable at an angle
to the rectilinear path of said carriage from a
position of rest to an off-normal position and
back again, while still remaining in mesh with one
of said pins, a lever having one of its ends in en
gagement with said rack‘ to be swung thereby.
a restoring spring for said rack engaging said
lever, a main driving shaft, and a locking disk
secured to said main driving shaft, a recess in said
locking disk being in the path of motion of a
part of said lever, when said rack is in its o?~
normal position.
8.;In a tabulator for calculating machines and
the like, in combination, a carriage displaceable
in a rectilinear path, a rotary disk, pins on said
disk, a manually operated key, a pawl on said
key, said pawl being operatively connected with
said disk for rotating the latter step-by-step upon
‘manual actuation of said key, a toothed‘ rack on
said carriage meshing with at least one of said
pins, said rack being movable at an angle to the
rectilinear path of said carriage, while still re
mining in mesh with one of said pins, and a
lever having one of its ends in engagement with
said rack, a part of said lever being in the path
of motion of said key to be engaged thereby near
~10 the end of the stroke of said key.
-
‘ 9.. In a tabulator for calculating machines and
the like, in combination, a carriage movable on
straight, guides, a rotary disk, pins on said disk,
manually operated keys, pawls on said keys, said
. pawls ‘being 'operatively connect-ed with said disk
for rotating the latter stepwise upon manual act
uation of‘ said keys, a toothed rack on said car
riage meshing with at least one of said pins, said
rack being movable at an angle to said guides,
while still remaining in mesh with one of said
pins, cams on said keys, and a double-armed
lever in engagement with said cams. said pawls
being in the path of motion of said lever to be
alternatively put out of operation thereby.
10. In a tabulator for calculating machines and
the like, in combination, a carriage movable on
straight guides, a rotary disk, pins on said disk,
manually operated keys, pawls on said keys, said
pawls being operatigely connected with said disk
for rotating the lattes, stepwise upon manual
actuation of said keys, a toothed rack on said
carriage meshing with at least one of said pins,
said rack being movable at an angle to said guides,
while still remaining in mesh with one of- said
pins, cams on said keys, said keys having recesses
pins, said rack being movable at an ang'leto said
guide, while still remaining in mesh withsaid pins,
8. second toothed wheel in mesh with said ?rst
wheel, projections on said second wheel, manually
operated tabulating keys, pawls on said ‘keys nor
mally engaging two of said projections in opposite
directions of rotation of said second wheel, cams 10
on said keys, and a double-armed lever in engage
ment with said cams, said pawls being in the path
of swinging motion or said lever to be alternately
disengaged from said projections thereby.
12. In a tabulating mechanism for calculating
machines and the like, in combination, a carriage
displaceable in a rectilinear path, a stationary
pivot, a disk rotatably journalled on said pivot,
pins on said disk, manually operated means for
rotating said disk step-by-step, a toothed rack
on said carriage meshing with at least one of
said pins, said rack beingmovable at an angle to
the rectilinear path of said carriage from a posi
tion of rest to an oil-normal position and back
again, while still remaining in mesh with one 25
of said pins, and abutments at the ends of the
row of teeth of said rack to limit the rotation
of said disk.
13. In a tabulating mechanism for calculating
machines and the like, in combination, a carriage 30
displaceable in a rectilinear path, a stationary
pivot, a disk rotatably journalled on said pivot,
pins on said disk, manually operated means for‘
rotating said disk step-by-step, a toothed rack
on said carriage meshing with at-least one ofsaid 35
pins, said rack being movable at an angle to the
rectilinear path of said carriage from a position
of rest to an oil-normal position and back again,
while still remaining in mesh with one of said
pins, and abutments secured to said carriage ad; 40
jacent to the ends of the row of teeth of said rack .
to limit the tabulation in both directions.
'14. In a tabulating mechanism for calculating
machines and the like, in combination, a carriage
displaceable in a rectilinear path, a stationary 45
pivot, a disk rotatably journalled on said pivot,
pins on said disk, manually operated means for.
rotating said disk step-by-step a toothed rack
on said carriage meshing with at least one of
said pins, said rack being movable at an angle
tothe rectilinear path of said carriage from a
position of rest to an off-normal position and
back again, while still remaining in mesh with
one of said pins, and means for moving said rack
out of engagement with said pins.
15. In a tabulating mechanism for calculating
machines and the like, in combination, a carriage
displaceable in a rectilinear path, a stationary
pivot, a disk rotatably journalled on said pivot,
pins on said disk, manually operated means for 00
rotating said disk step-by-step a toothed rack
on said carriage meshing with at least one of said
pins, said rack being movable at an angle to the
rectilinear path of said carriage from a position
at one end of said'cams, and a double-armed lever - of rest to an off-normalposition and back again,
in engagement with said cams, said recesses being while still remaining in mesh with one of said
in the‘ path of motion of ‘said lever to lock one pins, a manually operated lever journalled on said
carriage, and a pin on saidlever engaging an
key, when another is depressed,
‘
11. In a tabulator for calculating machines and.v _ angle-shaped i‘ecess in said rack.
the like, in combination, a straight guide, a car
55
BENGT cams'moM.
ROY HANSON.
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