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Патент USA US2115767

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May 3, 1938.
2,115,767
F. GRUTTMANN
CONTROL STAMP
Filed Sept. 11, 1955
6 Sheets-Sheet 1
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May 3,‘ 193-8.
F. GRUTTMANN
2,115,767
CONTROL STAMP
Filed Sept. 11, 1935'
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May 3, 193-8.
F. GRUTTMANN
2,115,767
CONTROL STAMP
Filed Sept. 11, 1935
6 Sheets-Sheet 4
‘May 3, 1933'
#. GRUTTMANN
2,115,767
CONTROL‘ STAMP
Filed Sept. 11, 1935
6 Sheets-Sheet 5
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May 3, 1938.
2,115,767
F. GRUTTMANN
CONTROL STAMP
Filed Sept. 11, 1935
6 Sheets-Sheet 6
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Patented May 3, 1938
2,115,767
UNITED STATES PATENT OFFICE
2,115,767
CONTROL ST‘AMIP
Franz Griittmann, Cologne, Germany
‘Application September 11, 1935, Serial No. 40,837
In Germany September 13, 1934
6 Claims.
; This invention relates to a control stamp for
bookkeeping purposes provided with an adding
mechanism.v
A _
i 5
.
Printing stamps known in the art are provided
with adjustable wheels, the rotation of which is
‘transmitted to the wheels of the adding mecha
nism in such manner that the numerals appear
ing upon the adjusted printing wheels are added
‘to the numerals readable upon the adding mech
anism as the result of an operation thereof, and
the invention provides improvements as to uni
form printing as well as safety devices to prevent
unauthorized use and unintentional adjustment of
the type.
One of the objects of the invention is to hold
the stamping mechanism in the casing of the
stampwhile the handle thereof is depressed and
to release it for printing only after the depres
sion, whereas in the known types of control
20 stamps the printing e?iciency depends on the
‘greater or lesser force applied to depressing the
.stamp.
_
j
.
~
.
The invention further provides that a control
key releases the handle of the stamp before it
can be depressed.
Furthermore, the adjusting wheels comprise
two segments which are coupled together in such
a way that the segment for adjusting the type
can be blocked during the stamping process while
the second segment is movable to transfer the
adjusted amount to the adding mechanism actu
atedby a spring which is tensioned by the de
pression of the handle of the stamp.
By way of example, the invention is illustrated
‘Iris in‘ the accompanying drawings, in which for the
sake of clearness only the parts required for
understanding the invention are shown and un
important known parts like the inking mecha
nism with its appurtenant devices and the con
trol ticket are omitted.
In the drawings, Figure 1 is a front view of the
control stamp according to the invention with
.the front wall of its casing removed; Fig. 2, a
cross section thereof on the line II--II, of Fig. 1,
with the stamping mechanism in depressed posi
tion; Fig. 3, a cross section on the line III-III,
of, Fig. 1, showing the wheels of the adjusting
.350
and adding mechanism; Fig. 4, a vertical cross
section on the line IV-IV, of Fig. 1, showing the
drive of the adding mechanism; Fig. 5, a sec
tional view on ‘the line III—III, of Fig. 1, show
ing the position of the adjusting wheels after
adjustment; Fig. 6, a vertical cross section on the
line III—-III, of Fig. 1, showing the position of
the swung in ‘adding mechanism before taking
‘
(Cl. 235-101)
over the amount; and Fig. '7, a vertical cross
section on the line III—III, of Fig. 1, showing
the position of the swung in adding mechanism
after the amount has been taken over.
Referring to the drawings, the casing 23 is sub- 5
divided by two plates 24a and 24b enclosing be
tween them the stamping and adding mecha
nisms into three compartments. The central
compartment .4. serves for accommodating the
stamping and adding mechanism, the right-hand 10
compartment B holds the securing and locking
means and the left-hand compartment 0 con
tains the drive for the adding mechanism. The
stamping mechanism built in between the plates
24a and 24b is vertically displaceable on both 15
sides in a downward direction along the guide
rails 80 and 8!, shown in Figs. 1 and 3, which are
secured to the casing; this downward movement
is carried out by means of the slide 82 attached
to the plates 24a, 24b. The ‘side rails 28a and 20
23b are vertically displaceable in the guide
bridges 14 connected to the plates 24a and 24b,
the two side rails being connected by the handle
20 of the stamping machine.
_
Fig. 2 shows the connection of the side rail 28a 25
with the plate 24a. One edge of the side rail
28a shown in its lower position is provided with
teeth 83 meshing with the two teeth of a locking
wheel .84 which are formed by a sector-shaped
cut-out portion of the wheel. An immovable 3O
arm 85 which is connected with the wheel 84 is
controlled by the projection of the lever 86 and
the spring 87. ‘During the descent of the rail 28a
the lower tooth of the wheel 84 is in engagement
with the teeth 83 while during the upward move
ment of the rail 28a the upper tooth of the wheel
84 engages the teeth 83. The reversal takes place
automatically by means of the ‘arm 85 which is
pressed downwardly upon the termination of the
downward movement of the rail 28a by the pin _
88. When the upward movement of the rail 28a
is terminated, the arm 85 is pressed upwardly by
the pin 89. The pins 88 and 89 are ?xed upon
the rail 2811. Figure 2 shows the lowermost posi
tion of the rail, the arm 85 having been moved
downward. When the arm 85 is in this position,
the rail 28a can only move upward, since the
wheel 84 cannot rotate any further in the clock
wise direction; it will be noted that the upper
tooth can be moved away from the teeth 83 only
when the wheel 84 is rotated counter-clockwise,
i e. when the rail 28a is moved upward. When
an upward movement is once begun, it cannot be
interrupted, but must be continued to the end.
Similarly, the downward movement must be con
55
2
2,115,767
tinued to the end and cannot be changed in the
middle. The side rail 28a is further provided
with the pin 99 which releases the lever 9| on
the plate 24a. The short arm of the lever 9|
with the fulcrum 92 carries a spring 93 which
with its other end is suspended from the hook
82a arranged on the casing 23. The side rail 28a
is actuated by the spring 94 whose one end is
connected with the pin 95 of the side rail 28a
10 while the other end is suspended from the pin
96 of the guide web 14. The plate 240. is locked
by means of a nose 8ia riveted to the plate 89a
and engaged by the nose I I5 of the lever 9| when
the stamping mechanism is in raised position.
15 Only after the handle 29 with the side rail 29a
is su?iciently depressed is the lever 9| swung out
by the pin 99 and the locking released, so that
the plate 24a with the stamping mechanism can
move down under spring action.
20
To prevent unauthorized depression of the
handle 29 the side rail 28a is provided with the
pin 91 which in raised position is positioned
above the nose 98 of a spring rail 99 which pre
vents the depression of the members 28 and 29.
Release is effected by a motion of the spring rail
99 at right angles to the plane of the drawings
by means of the lock I99. The case of the lock
has a front slot |9I for the insertion of the key
I92 and inside a displaceable and rotatable slot~
30 ted pin I93 for the reception of the key I92. At
the inner end of the pin or mandrel I93 a centric
pin I94 and an eccentric pin I95 are provided, the
pin I94 passing through a bore of the web I96
of the lever I91 rotatably positioned at I98 and
drawn towards the shoulder of the mandrel I93
by the spring I99. In a slot N9 of the lever I91
2. pin III is guided which is seated on the wheel
II2 moving the type wheels H3 and N4, the
latter wheel serving for printing the control
40 strip, not shown, inside the casing 23.
The stamp functions as follows:
When in inoperative position, the stamping
mechanism 24 is locked against downward mo
tion by the nose 8m engaged by the hook N5
50
60
65
70
of the lever 9| owing to the action of the spring
93. The handle 29 with the two side rails 28a
and 28b is drawn up by the spring 94 and actuates
the pin 89, thereby causing an upward movement
of locking wheel 84 and its arm 85. The pin
91 of the rail 28a is above the nose 98 which,
owing to the release of the eccentric I95 during
the withdrawal of the key I92, lies in front of the
pin 91 and prevents depression of the handle 29
and the rail 28a. The machine is locked against
depression, the type wheels are drawn up and
printing in this position is not possible.
To operate the control stamp the key I92 is
inserted in the look I 99 and given a quarter turn.
By the insertion of the key I92 the mandrel I93
is pressed inwardly in the direction of the arrow
shown in Figure 2 until the cut-out portions of
the key I92 reach their proper positions in the
slot |9I to enable a rotation of the key I92 along
with the mandrel I93. When the mandrel I93 is
moved in the longitudinal direction, the lever I91
which is pivoted at I98 is moved out of its in
operative position and is rotated in the direction
of the arrow, so that the lever I91, by means of
the slot I I9 and the pin III, turns the wheel IIZ
which in its turn rotates the type Wheels “3
and H4 which carry the types. The extent to
which the key I92 must be inserted into the lock
depends upon the positions of the cut-out por
tions in the key I92, so that when different keys
75 are used, the wheels II 3 and II 4 rotate to a dif
ferent extent and, consequently, different letters
appear in the printing. By these means it is
easy to determine with what key the device was
opened or what person has made the entry.
When the notched key I92 is pushed in far enough
to permit of its being turned, the mandrel I93
cooperates in the rotation and, with the eccentric
I95, laterally lifts oif the spring rail 99 which
with its nose 98 releases the pin 91 of the side
rail 28a.
When pressure is exerted upon the handle 29,
the rails 28a, 28b slide down and tension the
spring 94 which acts to draw down the stamping
mechanism which, however, is prevented from
sliding down by the engagement between the nose
H5 and the nose 8Ia of the casing 23. During
farther depression of the handle 29 the shoulder
99 touches the cam of the lever 9|, presses it side
ways and thereby disengages the two noses (Ho
and H5. The stamping mechanism arranged on
the plate 24a is now free to act, moves down
owing to the action of the spring 94 and effects
the impression. Simultaneously, the wheel 84
has been reversed by the pin 88, and the handle
29 and the stamping mechanism 24 are then
raised into their initial position by means of the
springs 93 and 94, then the noses 8|a and “5
10
15
20
25
come into engagement and the wheel 84 is re
versed again by the pin 89.
When the key I92 is moved backward after 30
having accomplished its purpose the spring rail
99 moves again into its normal position; the nose
or projection 98 moves then under the pin 91
and. thereby locks the rails 28a and 28b, pre
venting an unauthorized person from moving 35
them downwardly. The lever I91 is then ro
tated in its original position by the spring I99,
whereby the key I92 is moved automatically out
of the lock. The wheel “2 and the type wheels
H3 and H4 are also brought back in their zero 40
positions by the rotation of the lever I91.
For adjusting the type wheels and taking the
adjusted amount over into the adding mechanism
the following means shown in Figs. 3 to 7 are
provided:
45
The left side rail 28b is controlled by the spring
12, Fig. 4, the one end of which is secured to the
pin 13 of the guide bridge 14 while the other end
is fastened to the pin 1| of the side rail 28b.
During depression of the side rail 28b, the pin 60
61 of the side rail presses down a toothed rail 5|.
This rail 5| is rotatable about a pin and is con
nected by a spring 52 with the guide bridge 14.
The rail 5| slides past the wheel 59 during the
downward movement and tensions this spring 52, 55
which during its upward movement rotates the
wheel 59 carried by the shaft 69 in the direction
of the arrow, thereby supplying the adjusted
amount to the adding mechanism.
The adjusting device consists of two parts and 60
comprises the wheel segment I which isv ?rmly
connected with. the axis 49 and the wheel seg
ment 49 (Fig. 3), which is rotatably mounted
upon the axis 49. The spiral spring 48 is also
rotatably mounted upon the axis 49. One end 65
of the spring 48 presses against a pin 48a of the
segment I, while the other end presses against
the pin 41 of the segment 46. Due to this ar
rangement, the two segments are resiliently cou
pled with each other, so that the segment 46 fol 70
lows the movement of the segment I. For the
purpose of convenient adjustment the wheel
segment I is provided with an arm 2 projecting
from the casing 23 and having a disc 3. During
the adjustment, the adjusting wheel I rotates
2,115,767
the type wheels 1 and 9, and the wheel segment
46 turns the number disc 6 by the wheel 5. In
the same plane as the wheel 29 a wheel 3| is dis
posed, both wheels having segmental gaps 30
and 32 which in zero position are opposite each
other.
-
A lever 58 rotatable about the shaft 15 ?xes
the adjusting wheels I by means of its nose 60.
A pin 58a provided upon its upper end projects
10 through a slot 581) of the rail 28b and is sit
uated at the rear surface of the toothed rail 5|.
During the upward movement of the rail 28b the
pin 58a is pressed to the right by the cam 59
of the toothed rail 5|, the nose 60 being then
15 removed from the teeth of the wheel I so as to
release the adjusting wheels for new adjust
ments.
For adjustment purposes, the wheel segment I
is turned until the desired numeral appears in
20 print, and the segment 46, owing to the action of
the spring 48, cooperates in this rotation and
adjusts the wheels 29 and 5 to the same extent.
The wheel 29 engages with its teeth the seg
mental gap 32 of the wheel 3|, whereupon the
25 adjustment is effected, as indicated in Fig. 5.
The handle 29 with the rails 28a and 28b is then
depressed and tensions the spring 52 in the
manner described while simultaneously an im
pression is made upon an underlying surface.
30 In response to spring action, the handle then
moves up again, and the spring 52, by means of
the toothed bar 5|, acts upon the wheel 50 to
turn the shaft 69 on which the wheel 3| is posi
tioned.
The wheel 62, also disposed on the shaft 69,
is connected with the cam disc 65 by means of
the wheels 63 and 64. The adding mechanism is
situated in a U-shaped casing 40 as shown in
Figure 1. Each of the side walls of the casing
46 is provided with a shaft 10 rotatably mounted
in the plates 24a and 241). A roller 66 which is
in contact with a cam disc 65 is mounted in a
side wall of the casing 40. When the shaft 69
begins to rotate, the casing 40 is rotated by its
own weight around the shaft 10 due to the en
gagement of the roller 66 with the cam disc 65,
whereby the wheel 42 of the adding mechanism
is brought into engagement with the wheel 29, as
shown in Fig. 6. Simultaneously, the wheel 3|
50 with its segmental gap 32 moves past the wheel
29, at ?rst without any effect, until ?nally it
comes into engagement with the teeth of the
wheel 29. The wheel 29 rotates the wheel 42
and the wheels 43, 44, 45 in the adding mecha
nism 4|), which serve for transferring and ren
dering visible the amount adjusted.
The spring 48 is tensioned in the course of the
rotation by means of the segment 46. The wheel
29 is rotated until its gap 30 is situated opposite
60 the teeth of the wheel 3|. Then the upper edge
of the gap 30 of the wheel 29 will engage the
circumference of the wheel 3| due to the action
of the spring 48, as indicated in Fig. '7, whereby
the transfer to the adding mechanism 40 is made.
After the transfer, the adding mechanism 40 is
disengaged again by the cam disc 65, as shown in
Fig. 4, and the shaft 69 continues to rotate until
the initial position has been reached. when the
shaft 69 along with the wheel 3| is moved into
its original position, the wheel 29 with the seg
ment 46 will be turned back to the adjusted posi
tion by the spring 48. To prevent a too rapid
transfer a braking device is provided which acts
upon the shaft 69. This device comprises a two
75 armed lever 31, which is mounted in the casing
3
40 and is provided with two teeth 31b and 310
situated on both sides of the center of rotation
31a. The rotation of the lever 31 is limited by
the two pins 31c and 31f. One of the teeth of
the lever 31 is always in engagement with the
toothed wheel 36, which is connected with the
shaft 69 by means of the gear wheels 34 and 33.
When the shaft 69 is rotated, the wheel 36 is
also rotated counter-clockwise due to the upward
movement of the rail 28b. In the position shown 10
in Figure 3, the tooth 31b is out of engagement
with the teeth of the wheel 36, whereby the tooth
310 is brought into engagement with the teeth
of the wheel 36, due to the rotation of the lever
31 about the axis 31a. Then the tooth 310 is
pushed away, whereby the tooth 31b is moved
again, so that the lever 31 is continuously oscil
lated about its axis 31a. Due to this arrange
ment, the wheel 36 and, consequently, the shaft
69 are slowly rotated. Obviously, any suitable
means may be used to achieve the same purpose.
The transfer of tens is effected in a known
manner by feeding the next higher digit.
1 claim:
1. A control stamp for bookkeeping purposes
provided with an adding mechanism, comprising,
in combination, a casing, means dividing said
easing into several compartments, a stamping
and adding mechanism in one of said compart
ments, a drive for the adding mechanism in an- -
other compartment, guide rails secured to the
casing and permitting vertical downward motion
of the stamping mechanism against spring ac
tion, spring actuated side rails vertically dis
placeable on said means dividing the casing, a
handle connecting said side rails and adapted to
be depressed, a plurality of adjusting and type
wheels cooperating with said stamping mecha
nism, and spring-actuated locking means coop
erating with said stamping mechanism and han 40
dle and disposed in a third compartment of said
casing, said locking means being adapted to
engage one another to hold the stamping mech
anism in an inoperative raised position and to
release it for printing only during depression 45
of said handle.
2. A control stamp according to claim 1,
wherein a spring connects the handle with the
stamping mechanism, said spring being tensioned
during depression of the handle and acting upon 50
the stamping mechanism only after a predeter
mined time and after release of the locking means
to cause the type wheels to effect printing.
3. A control stamp according to claim 1,
wherein a control key insertable in the casing re
leases the handle for depression and adjusts a
control type for printing.
4. A control stamp according to claim 1,
wherein a control key insertable in the casing
releases the handle for depression and adjusts
a control type for printing, the stamping mecha
nism being locked again during withdrawal of
said key.
5. A control stamp according to claim 1,
wherein the wheels for adjusting the amount
comprise two segments loosely coupled by a
spring, one of said segments being blocked dur
ing the stamping and the other one being mov
able during transfer of the amount to the adding
mechanism.
70
6. A control stamp according to claim 1,
wherein the drive for the adding mechanism
comprises a spring adapted to be tensioned by the
depression of the handle.
FRANZ GRUTI'MANN.
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