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Патент USA US3097784

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July 16, '1963
T. H. KRUEGER
3,097,776
TAPE SERVING MACHINE
Filed April 22. 1960
4 Sheets-sheet 1
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INVENTOR.
Theodore H.Krueger.
July 16, 1963
'
T. H. KRUEGER
3,097,776
TAPE SERVING MACHINE
Filed April 22, 1960
4 Sheets-Sheet 2
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INVENTOR.
“ Theodore H. Krueger.
BY
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ATTORNEYS.
‘July 16, 1963
T. H. KRUEGER
3,097Q776
TAPE SERVING MACHINE
Filed April 22, 1960
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INVENTOR. I
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Theodore H. Kr ueger
BY
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ATTOR NEYS.
July 16, 1963.
T. H. KRUEGER
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3,097,776
TAPE SERVING MACHINE
4 Sheets-Shem‘, 4
Filed April 22. 1960
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INVENTOR.
Theodore H. Krueger
United States Patent 0
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3,097,776
Patented July 16, 1963
2
1
mounted a roll of gummed tape 12,. The tape is drawn
from the roll v12 over suitable guide rollers between a
pair of feed rolls 14- and ~16, ‘at least one of which is
driven. In the construction shown the roll 16 is driven
3,097,776
TAPE SERVING MACHINE
Theodore H. Krueger, Stratford, Conn. (% Better
Packages, Inc., Shelton, Conn.)
Filed Apr. 22, 1960, Scr. No. 24,031
8 Claims. (Cl. 226-11)
from an electric motor 17 by means of a chain 18. The
roll 14 is mounted on a stud 21 carried by an arm 20
which swings about a shaft 22 so as to move the roll
into contact with the tape and press the same ‘against the
feed roll 16 .and cause feeding of the tape. The arm 20
10 is actuated by a lever 24 which is pulled down by a link
gummed package sealing tape in measured lengths.
26 connected to the armature of a solenoid 28 which is
In my Patent Number 2,405,790 I have shown a ma
energized whenever tape is to be fed. The lever 24 forms
chine for this purpose characterized by tape feeding
pact of a yoke 30 which is pivoted to swing on a shaft
means so ‘organized that when a measured strip of tape
32 and which transmits movement to the arm 20 through
is removed from the machine, the machine is automat
ically set in motion to feed a second measured strip. A 15 connections including a compression spring 27. The
yoke 30 carries .a movable knife 34 which co-acts
a
principal feature of the present invention relates to an im
?xed blade 36 to sever the tape. When the solenoid 28 is
proved construction for accomplishing this result. A
energized, the yoke and movable knife 34 are moved to
simplified and more rapidly operating machine is pro
This invention relates to machines for serving strip ma
terial and is especially adapted to the dispensing of
length, such .as one complete revolution of a
their uppermost position where the knife is out of the
path of the tape leaving the feed rolls. When the solenoid
is die-energized, the yoke 30 carrying the knife is in
stantly drawn down by ‘the action of a spring 38 con
nected to the yoke, thereby severing the piece of tape
which has previously been fed. The action of the spring,
clutch, irrespective of the length of strip being delivered,
25 ‘of course, also moves the poll 14 out of contact with the
v-idcd in which the mechanism resets itself, immediately
after a strip has been measured and cut, in a condition
to instantly start delivery of another strip upon removal
of the strip already cut. The elements of the machine
do not have to go through a complete cycle of predeter
so that there is a saving in time and quicker operation, _
particularly where strips of less than the
ca
pacity of the machine ‘are being delivered. The present
invention, however, secures all of the advantages of the
machine of the patent including particularly that of sup 30
porting the out, measured ‘and moistened strip until it is
ready to be applied to the article to be sealed so as to per
min a period of conditioning to ‘allow the gum to become
softened for most re?ective use, while the previous strip
is being applied.
The machine of the present invention. also preferably
is provided with switch means in addition to the auto
tape so that feed is instantly stopped. Ordinarily the
feed motor is stopped at the same time the solenoid is
tie-‘energized, but this is not essential as the separation
of the feed rolls results in an instant stoppage of the tape
feed.
In the particular construct-ion illustrated the machine
is intended for the delivering of gummed package-sealing
tape which requires moistening before use.
In such a
machine a moistening couple is provided which in the
35 example shown includes an inverted brush 40 mounted
in a water reservoir 4-2. Above the brush is a pivoted
pressure plate 44 and as the tape passes between the pres
sure plate and the brush it is moistened. Furthermore,
matic control whereby any length of strip may be de
livered by manual operation, up to the maximum length 4:0 the strip which has been cut off will remain suspended
by its rear end between the pressure plate and the brush
of the strip for which the machine has been adjusted.
until it is manually withdrawn.
The machine of the present invention also embodies tape
In the construction shown the feeding of each piece of
feeding and control instrumentalities applicable to dis
tape is automatically initiated by the withdrawal of the
pensers of various types.
previous piece of tape, this being accomplished by means
The objects of the invention include the provision of
of a feeler element or ?nger 5(l which is mounted on a
an improved and simpli?ed tape dispensing machine for
transverse shaft 52 above the pressure plate and which
delivering measured lengths of tape, removal of one
drops down through a slot in the pressure plate. Pressure
length of tape initiating the feed of the next length. Am
is applied to the tape to press it against the brush by means
other object is the provision of improved tape dispens
ing instrumentalities capable of random manual opera 50 of weights 51, a pair of weights being employed in the
construction shown so as to leave a space between them
tion for delivering any selected lengths of tape up to the
through which the feeler ?nger can act. As soon as the
capacity of the machine. Other objects and advantages
advancing end of a piece of tape passes over the brush and
of the invention will appear from the following descrip
under the pressure plate, it will lift the feeler ?nger and
tion of a preferred embodiment of the invention chosen
will hold it in a lifted position during the feeding, moisten
to illustrate the principles thereof.
55
ing and cutting off of the strip. When the strip is manually
In the accompanying drawings:
withdrawn for application to a package, the feeler ?nger
FIG. 1 is a side elevation of a machine embodying
will drop and through mechanism to be described will
the invention, parts of the control housing and of the
initiate the feeding of the next strip.
main casing being broken away;
'FIG. 2 is a side elevation of the opposite side of the 60
Measurement and Control Means
machine from that shown in FIG. 1, portions of the eas
ing being broken away ‘and certain parts being shown in
longitudinal vertical section;
The length of strip to be delivered is measured by means
of a reciprocable or loscillatable measuring control element
which is driven concurrently with the feed of tape in either
FIG. 3 is a front elevation of the machine, parts being
a straight or curved path and which returns to a zero
broken away and omitted;
65 position ‘after each feeding operation. In the construction
FIG. 4 is a schematic wiring diagnam of the machine;
illustrated this control element is of a rotary character and
FIG. 5 is .a detail in vertical section taken at the posi
comprises a control disc or plate 60‘ mounted on an ‘arbor
tion indicated by line 5—5 in FIG. 1, and
‘62 and rotated by means of a friction wheel 64 which is
‘FIG. ‘6 is a perspective view of certain of the parts
made of or surfaced with rubber or other friction material,
shown particularly in FIGURES l and. 3.
70 “neoprene” being preferred. The friction wheel is ?xed
Referring to the drawings in detail, the machine corn
to a gear ‘66 which is driven by a pinion 68 on the end of
prises a casing 10 having a compartment in which is
3,097,776
the shaft 70 on which the feed roller {16 is ?xed. Every
time the feed rollers grip the tape so that the tape is ad
vanced, the friction wheel 64 is drawn into contact with
the periphery of the disc 60 so as to advance the same
proportionally to the feed of the tape. Owing to the
relatively small diameter of the friction wheel 64 and
to the reduction gears 66, 68, the disc 60 is rotated at a
A.
pivoted on a wall of the casing, as indicated at 126. The
lever 124 carries a contact screw 128 the end of which
engages a button 130 on the top lOf the resettable switch
96. Proper engagement between the screw and the but
ton may be secured by adjustment of the screw 128 and
of a companion stop screw 132 the end of which engages
the surface of the ‘bracket 98. When a piece of tape is
low rate so that less than one revolution of the disc 60 will
be accomplished while a piece of tape of the maximum
removed from between the moistening couple so as to
or other suitable spring 72 is mounted in a barrel 74 and
serves to return the disc to its predetermined starting posi
tion as soon as the friction wheel 64 is lifted out of driving
engagement with the disc.
circuit through the motor and solenoid‘, thereby starting
permit the ?nger 50 to ‘fall, the button 130 \of the switch
capacity of the machine is being delivered. A “clock type” 10 is pushed down by the Weight of the lever 124, closing the
the feed and simultaneously starting the movement of the
measuring .disc 60 by reason of the engagement of fric
tion wheel 64 therewith. The tape is now fed until the
The friction wheel 64 and gear 66 are rotatable on a 15 contact 92 engages the ‘button 94 and resets the switch
stud 76 carried by an arm 78 pivoted on the shaft 70.
96 so as to ‘break the circuit and de-energize the solenoid
On the end of the arm 78, there is pivoted by a pin 79 a
and motor. Feed now stops, and the tape is cut off by
sleeve 80 through which passes the end of a pull rod 82
the spring-actuated knife, the end of the tape being sus
screwed into a block 84 which is pivoted to a stud 85
pended between the brush and pressure plate. When the
carried by the yoke 30 so that when the yoke and arm 20 20 feed stops, the friction roller releases the measuring wheel
are drawn down by the solenoid to move the feed roll 14
60 which is returned by its spring 72 until the bracket
into contact with the tape, the friction wheel 64 is engaged
102 engages the stop ‘100. The machine now remains in
with the disc 60. The effective length of the rod 82 may
this condition until the piece of tape is withdrawn, when
be varied by turning the rod by its head 86, which may
another cycle is started.
be held in adjusted position by a lock spring 88. In this 25
Where the machine is to be used merely for feeding a
way the proper frictional engagement may be insured
large number of pieces of tape of a particular length as
between the friction wheel and the disc.
?xed by the setting of the adjusting spring 112, no further
The disc ‘60 has a bracket 90 ?xed thereto which carries
mechanism is required. However, it is frequently desir
a contact member 92 preferably in the form of a stiff leaf
able to feed manually pieces of tape of different lengths
spring. In the zero position of the disc this spring con 30 within the capacity of the ‘machine, and this may be ac
tacts a button 94 on a resettable switch 96 which is
complished by providing a manual or treadle-operated
mounted in ?xed position on a bracket 98 on a portion
switch for setting the machine in operation and stopping
of the casing of the machine. The length of tape fed is
the feed when desired independently of the feeler ?nger
determined by the arc of travel of the disc 60 and contact
50. For this purpose the machine as shown is provided
member ‘92 before the contact member 92 reaches the 35 with a ?nger operated switch 134 and with a shunt switch
button 94 on the switch. This are can be adjusted by the
136. FIGURE 4 is a wiring diagram showing how these
adjustment of a backstop limiting the movement of the
switches operate. The leads 150 are plugged into the
contact member 92 away from the switch 96. The back
power line. If automatic operation dependent upon the
stop is shown at 100 and is engaged by bracket 102 ?xed
?nger 50 is desired, the shunt switch is closed so as to
to the disc 60. ‘The back stop may be provided with a 40 throw in the shunt 152. Now when the resettable switch
cushion such as a rubber cup if desired. The back stop
96 is closed by the removal of a previously fed strip of
is mounted on a bracket 103 ?xed to a scale-carrying disc
tape and the dropping ‘of the ?nger 50, the circuit is
104 rotatably carried on the arbor 62 ‘and provided with
closed through the motor and solenoid and feed takes
length indicia 106. The scale disc 104 may be locked in
place. Feed will continue until the measuring disc 60
any suitable position of adjustment on the instrument 45 moves far enough to bring the contact member 92 against
casing thereby determining the position of the back stop
the switch {button 94, which ‘breaks the circuit and stops
100. Any suitable means for ?xing the scale disc in its
the feed. When this piece of tape is withdrawn the switch
adjusted position may be utilized so long as this means is
‘button 130 is again pushed by the lever 124 and another
piece of tape is fed.
?rm enough to enable the back stop to withstand the
blows of the bracket 102 every time the measuring disc 50
When it is desired to use the manual control, then the
60 is returned by its spring 72. In the construction shown
shunt switch 136 is opened and the shunt cut out, as
a ring 108 having a series of holes 110 therein is ?xed
shown in FIGURE 4. The previously fed piece of tape
in the outer wall of the control housing 111 attached to
having been removed by the switch 96 is now in closed
the casing. Attached to the outside of the scale disc 104
position but the circuit is still open at the switch 134.
is a stiff ?at spring member 112 which carries one or more 55 The operator can now ‘close the switch 134 and feed tape
pins 114, three being shown. When it is desired to adjust
the position of the scale disc, the outer end 115 of the
spring 112 is bent out su?‘iciently to withdraw the pins 114
until he opens the switch 134 or until the contact member
reaches the switch button 94, opens the switch 96 and
' automatically stops the feed. Ordinarily, when the op
erator is operating the dispenser manually by means of
60 the switch 134, he will the feeding a number of pieces of
tape shorter than the capacity of the machine. He will
therefore set the scale disc 104 to the maximum setting,
from the holes 110 in which they may at the time be en
gaged, and then to move the spring 112 and disc 104
around until the desired length of tape to be delivered is
indicated by the number on the scale opposite to the ?xed
arrow 1116 on the casing. The spring 112 is then released
or at least to a setting longer than any of the pieces which
so that the pins 114 will enter the holes. corresponding
he intends to dispense manually. He can then manipulate
with the tape length indicated. The back stop 100 is now 65 switch 134 and ‘feed any number of such shorter pieces
?xed in an adjusted position which will permit the measur
of ‘any length which he may wish. When he wishes to
ing disc 60 to move back so that when the next feed is
resume automatic or cyclic operation of the machine he
started, the are through which the measuring disc and
contact member 92 will have to move before the contact
member reaches the switch button 94 will result in feed
ing of the length of tape indicated by the scale.
The feeler ?nger 50, as above stated, is ?xed to a shaft
52. At the end of this shaft is a crank 120 which is con~
nected by means of a ‘link 122 with a heavy lever 124
merely sets the scale disc to the desired standard length,
closes the shunt which cuts out the switch 134, whereupon
the machine will operate every time ‘a severed piece of
tape is drawn out from under the ?nger 50.
It will be noted that in the preferred construction il
lustrated the resettable switch 96 is located in a ?xed
position on the machine and is set in closed position by
75 the weighted arm 124 which drops whenever a piece of
3,097,776
5
tape-is removed [from under the ?nger. The resettable
means including a resettable switch, a reciprocable con
trol disk, a contact member on the control disk for actu
switch is set in open position by engagement of the con
ating said resettable switch when the control disk is ad
tact member '92 which is driven up to the switch by the
vanced, means for advancing the control disk propor
friction wheel =64. The length of tape fed depends upon
tionately to the movement of said tape feeding rolls when
the are through which the contact member is ‘advanced
the tape is being fed, means for releasing the control disk
to the stationary position of the reset switch. The sta
from said advancing means when the rolls are separated
tionary location of the switch is very desirable as it per
so as to permit return of the control disk to an initial
mits the use of a very simple operative connection from
position, an adjustable backstop ‘for limiting the return
the ‘?nger 50. No adjustment is required in this connec
tion, irrespective of the length of tape to be fed. Also, the 10 movement of the control disk, means for returning the
control disk, a tape contact element and a switch actuat
fact that the position of the switch is ?xed enables direct
ing means connected with said tape contact element and
electrical connections to be made to it without any ?ex
settable when the tape contact element is contacted by
ible connectors or the like. This ?xed position is possible
the tape being fed in a condition to reset the switch upon
because the contact member 92 always moves to the same
removal of tape from contact with said tape contact
terminal spot, namely, the ?xed location of the switch,
element.
adjustments being secured by the adjustable back stop.
4. In a tape dispensing machine, tape feeding rolls, elec
There are no electrical connections on any moving part
tric motor means for driving at least one of said rolls,
such as the back stop or the measuring disc 60. This fea
electrically controlled means for drawing said rolls into
ture, namely, that of a ?xed switch in combination with
a reciprocating measuring and control element carrying -a 20 gripping engagement with the tape and for releasing the
same therefrom, said electrically controlled means includ
contact member for setting the switch and a back stop for
ing an electric circuit including a resettable switch, a
limiting the return movement of the control element, is
manually operable switch and a shunt switch for shunting
applicable to 1 feed control constructions in which the
out the manually operable switch, a reciprocable control
travel of the control element is back ‘and forth in a straight
member, a contact member on the control member for
25
line or otherwise, and is not limited to rotary control
actuating said resettable switch when the control member
is advanced, means for advancing the control member
‘In the accompanying drawings one preferred embodi
proportionately to the movement of said tape feeding rolls
ment-of the invention is illustrated to show the best mode
when the tape is being fed, means for releasing the con
now known to me for practicing the invention, but il do
not wish to be limited to the speci?c construction illus 30 trol member from said advancing means when the rolls
elements.
1
-
are separated so as to permit return of the control mem—
tna'ted and I intend to cover my invention in whatever
ber to an initial position, an adjustable backstop for limit
forms its principles may be embodied.
ing the return movement of the control member, means
' I claim:
for returning the control member, a tape contact ele
1. In a machine for dispensing strip material in meas
and switch actuatingmeans forthe resettable switch
ured lengths, intermittently acting tape dispensing means, 35 ment,
connected
with said tape contact element and settable
electrical means including a resettable switch for starting
when the tape contact element is contacted by the tape
and stopping the tape dispensing means, a-tape contacting
being fed in a condition to reset the resettable switch upon
element movable by the advancing tape being fed, a switch
removal of tape from contact with said tape contact ele
actuating element connected with said tape contacting
ment, said manually operable switch when said shunt
element and se'ttable in a condition to actuate said switch 40 switch is open permitting manual operation of the feeding
to start the feed of tape when a piece of previously fed
of lengths of tape shorter than the length which will be
tape is removed from contact with said tape contacting
fed when feeding is controlled by said tape contact
element, and means ‘for resetting the switch to stop the
element.
tape feeding operation immediately on completion of the
5. In a tape dispensing machine, tape feed rolls, motor
feeding of a measured length of tape and to simultane 45 means for driving at least one of said rolls, electrically
ously place the machine in condition for another tape
controlled means for drawing said rolls into gripping
dispensing operation.
engagement with the tape and for releasing the same there
2. In a machine for dispensing strip material in meas
from, said electrically controlled means including an elec—
ured lengths, intermittently acting tape dispensing means,
tric circuit including a resettable switch mounted in pre
electrical means including a resettable switch for starting 50 determined position upon the tape dispensing machine, a
and stopping the tape dispensing means, a tape contact
reciprocable control disk, a friction wheel for rotating
ing element movable by the advancing tape being fed, a
said control disk in one direction, means for rotating said
switch actuating element connected with said tape con
friction wheel whenever the feed rolls are actuated to feed
tacting element and settable in a condition to actuate said
tape, means for drawing the friction wheel into driving
switch to start the feed of tape when a piece of previously 55 engagement with the control disk whenever the feed rolls
fed tape is removed from contact with said tape contacting
are in gripping engagement with the tape, a contact mem~
element, means for actuating the switch to stop the tape
ber mounted on said control disk and movable into switch
feeding operation immediately on completion of the feed- . operating position upon forward movement of the control
ing of a measured length of tape, said last named means
disk, a stop bracket on the control disk, a backstop for
comprising a reciprocable control element having a switch 60 engagement with the stop bracket, means for returning
contact member, means ‘for advancing said control ele
the control disk on release of the friction wheel from
ment proportionately to the feed of tape, a backstop for
driving engagement therewith until said stop bracket en
said control element, means for returning said control
gages said backstop, an indexing disk rotatably mounted
element to said backstop on completion of the tape feed,
upon the machine, said backstop being mounted on said
and means for adjusting said backstop so as to limit the 65 indexing disk, and means for ?xing the indexing disk in
return movement of said control element, the length of
adjusted position on the frame of the machine so as to
tape fed being determined by the length of travel of the
control element from its position against the backstop to
?x the position of the backstop and the maximum length
the position of engagement of the switch contact member
on the control element with the switch.
3. In a tape dispensing machine, tape feeding rolls,
electric motor means for driving at least one of said rolls,
70
of travel of the control disk between a position in which
said stop bracket on the control disk is in engagement
with the backstop, and the position in which the contact
member on the control disk is in operative engagement
with said switch.
electrically controlled means for drawing said rolls into
6. In a tape dispensing machine, tape feed rolls, motor
gripping engagement with the tape and for releasing the
same therefrom, said last named electrically controlled 75 means for driving at least one of said rolls, electrically
7
3,097,776
controlled means for drawing said rolls into gripping
engagement with the tape and for releasing the same
therefrom, said electrically controlled means including
an electric circuit including a resettable switch mounted
in predetermined position upon the tape dispensing ma
chine, a reciprocable control disk, a friction wheel for
rotating said control disk in one direction, means for
rotating said friction wheel whenever the feed rolls are
actuated to feed tape, means for drawing the friction
wheel into driving engagement with the control disk
whenever the ‘feed rolls are in gripping engagement with
the tape, a contact member mounted on said control disk
and movable into switch operating position upon for
ward movement of the control disk, a stop bracket on the
8
of the control element and the tape feeding means simul
taneously, a backstop for said control element, means
for returning the control element against said backstop,
and ?nger actuatable means for setting the backstop
in adjusted position and for quickly changing said posi
'tion, the length of tape fed being determined by the dis
tance of travel of the control element forward from the
backstop, said means for setting the backstop in adjusted
position comprising a rotatable indexing disk upon which
the backstop is mounted, said ‘disk ‘having a ?nger actuat
able spring arm mounted thereon, a pin carried by said
arm, and a plate ?xed to a stationary part of the machine
having a series of holes therein, any one of which may
be engaged by said pin so ‘as to determine the position of
control disk, a backstop for engagement with the stop 15 adjustment of the backstop.
bracket, means for returning the ‘control disk on release
of the friction wheel from driving engagement therewith
until said step bracket engages said backstop, an indexing
disk rotatably mounted upon the machine, said backstop
being mounted on said indexing disk, means for ?xing
the indexing disk in adjusted position on the frame of the
machine so as to ?x the position of the backstop and the
maximum length of travel of the control disk between a
position in which said stop bracket on the control disk
is in engagement with the backstop, and the position in
which the contact member on the control disk is in
8. In a machine for dispensing strip material in meas
ured lengths, intermittently acting tape dispensing means,
electrical means including a resettable switch for starting
and stopping the tape dispensing means, means for sup
porting a piece of tape in the machine after it has been
fed, means for sensing the presence of said supported
fed piece of tape, said sensing means being actuatable
by withdrawal of said piece of tape from the machine, a
switch actuating element operatively connected with said
25 sensing means to be actuated thereby on withdrawal of
said piece of tape, said switch actuating element being
operative engagement with said switch, a tape contact
settable in a condition to actuate said switch to start the
element mounted adjacent to the point of tape delivery
feed of tape when a piece of previously vfed tape is re
and actu‘able by the advancing end of a piece of tape,
moved, and means for resetting the switch to stop the tape
and means for actuating said resettable switch operatively 30 feeding operation immediately on completion of the feed
connected with said tape contact element and set in a
ing of a measured length of tape and to simultaneously
condition to operate said resettable switch upon removal
place the machine in condition for another tape dispens
of a piece of tape from contact with said tape contacting
ing operation.
element.
References Cited in the ?le of this patent
7. In a machine for dispensing strip material in meas 35
ured lengths, intermittently acting tape dispensing means,
a reciprocable control element, means for advancing the
control element in proportion to the length of tape fed,
means located in ?xed position for stopping the advance
UNITED STATES PATENTS
2,405,790
2,757,730
Krueger _____________ __ Aug. 13, 1946
Hempel ______________ __ Aug. 7, 1956
2,776,833
Lakso ________________ __ Jan. 8, 1957
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