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Патент USA US3084589

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‘April 9, 1963
'
3,084,579
W. J. MELVILLE
CONTROL MEANS FOR REGISTRATION CONTROL DEVICE
Filed April 29, 1959
2 Sheets-Sheet 1
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INVEN TOR.
W/LBUR J. MELVILLE
April 9, 1963
w. J. MELVlLLE
3,084,579
CONTROL MEANS FOR REGISTRATION CONTROL DEVICE
Filed April 29, 1959
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INVENTOR.
Z:
BY
W/LBUR J. MELV/L-LE
United States Patent O?ice
3,084,579
Patented Apr. 9, 1963
2
1
Thus, the principal object of the present invention is
3,084,579
CONTROL MEANS FOR REGISTRATION
CONTROL DEVICE
Wilbur J. Melville, Memphis, Tenn.
(612 Bloomfield Ave., Clifton, NJ.)
Filed Apr. 29, 1959, Ser. No. 809,693
6 Claims. (Cl. 83-74)
to improve upon registration control equipment of the
above-described type to provide registration correction ‘in
both advance and retard directions.
A further object is to provide an attachment device
which is adapted to be used in conjunction with existing
registration control equipment and to provide for regis
tration control in both advance and retard directions.
A further object is to provide such a device which
This invention relates to a registration control device
to be used in conjunction with known equipment to pro 10 functions to produce instant correction for out-of-register
conditions so that the accuracy of the machine may be
duce complete registration control over repeat cycle op
continuously maintained.
eration on machines and/or equipment which requires
Although the invention has been described as being em
both advance and retard corrections.
In particular, the registration control device of the
ployed with a corrugator machine, it will be understood
present invention is an improvement over the type of 15 that the invention may be used with other machines of
registration control equipment which type, in general, in
repeat cycle operations without departing from the spirit
cludes a photoelectric-re?ection scanner, a control unit
and scope of the present invention.
having a control relay, and some type of electro-mechani
The means by which the foregoing and other objects
cal correction mechanism built into the drive to the ma
of the present invention are accomplished and the man
ner of their accomplishment will be readily understood
chine.
from the following speci?cation upon reference to the ac
Registration control is designed for repeat cycle op
companying drawings, in which:
erations involving the precise measurement of material
FIG. 1 is -a schematic view of the present invention
length or indexing of machine operation. In the above
illustrated in conjunction with a corrugator.
mentioned type of control, this is accomplished by measur
FIG. 2 is a prospective view of the timing device of
ing the interval between the operation of a synchronized 25
the present invention With'the cover thereof being broken
control circuit and the disturbance of a beam of light.
Thus, to identify length in a manner that can be utilized
by the registration control, the measured material must
away for purposes of illustration.
FIG. 3 is a schematic view of a portion of the appa
ratus of FIG. 1, showing three examples of the position
be marked at intervals corresponding to the desired
length, and the marks should produce an effective light 30 of the material relative to the machine.
Referring now to the drawings in which the various
beam disturbance in passing the scanner.
parts are indicated by reference characters, the corrugator
The synchronized occurrence of machine operation and
11, with which the present invention is herein disclosed
as being used, is described, in general, as follows: One
tration control devices of the above-mentioned type, the
usual operation incorporates the use of a cam operated 35 sheet of paper called the medium A is fed from roll
13 and corrugated between two ?uted surface hot steel
synchronizing switch which is in open position for a
roll-s 15, 17. Corrugated medium A is then glued to a
short interval during each ‘cycle of the machine. If the
flat paper sheet called ?rst liner B which is fed from
mark on the material to be measured passes the scanner
during the open interval of the switch, the marked po 40 roll 20. This gluing process is performed under extreme
heat and high pressure between a smooth surfaced steel
sition and the machine operation are synchronized and
roll 19 and ?uted roll 17. Previous to the heating of
no control action results. If synchronization is not within
?rst liner B and medium A, .an adhesive is applied to
desired limits, the marks will pass the scanner during the
light beam disturbance is the desired condition. In regis
closed period of the synchronizing switch.
The light
the tips of the ?utes of the medium A by glue applicator
disturbance due to the mark causes the registration relay 45 roll 21. The combined sheets A and B leaving the pres
sure roll 19 and ?uted roll 17 are known as ‘a sheet of
to be energized. Corrective action is then applied through
“single face,” and designated in the drawings as at AB.
externally associated devices.
'
The next step is the addition of a second liner C, which
In the above-mentioned type of registration control
is fed from a roll 22. Adhesive is applied by roll 23 to
equipment using the above-mentioned principle of op
eration, correction could only be applied in one direc 50 the exposed tips of the ?utes of single face AB imme
diately preceding the combining of second liner C with the tion. In certain machines, as for example, a corrugator
‘single face.
i
with which the present invention is hereinafter described
The next and ?nal step in the making of the corru
as being employed, and which is used to combine sev
gated board is the application of pressure heat to ‘the com
eral sheets of paper to form corrugated paper board,
bined sheets. This is accomplished by a plurality of
errors in cut lengths of ?nished board occur in either di
steel rolls 25, applying the pressure while the combined
rection (i.e., long or short). The reason for this is that
sheets,‘ now known as “board” and designated as at D,
there is no positive drive to the cut-0E knives, nor is
are drawn over hot steel plates 27. The duration of
there a positive feed to the board entering the knives.
this pressure and heat application varies with different
Even with the exercise of extreme caution in operation,
thicknesses of paper used in the board and is regulated
slippage can and does occur in either direction almost
by the speed of board movement across the plates 27.
continuously, ‘and as the errors which do occur are of
All traction or driving force applied to board D dur
various degrees and erratic as to direction (long or short),
it is readily seen that it is impossible to acquire precision
length cut~off by correcting for error in one direction
ing this ‘?nal operation is ‘derived from the friction or
traction effect of the board being held between two
only.
heavy cotton belts 29 and '31, one above and one below
aosasvs
4
the board. These belts are driven mechanically and in
The rotor 85 of timer 71 is ?xedly mounted on a shaft
perfect unison by drums or pulleys 33, 35, respectively,
87 extending axially thereof, which shaft 87 is rotatably
which belts, in addition, are respectively led over idler
mounted in two bearing stands, i.e., a forward stand ‘89
pulleys 37, 39‘.
and a rearward stand 911, ?xedly supported from the base
91 of timer 711. Rotor 85 comprises a cylindrical in
'
Leaving this ?nal combining, baking and conditioning
section of corrugator 11, the board D is now hard, rigid,
sulating body '93 carrying two parallel arcuate segments,
and ready to be cut to desired sizes. Suitable cutting
means is provided, as rotary knives 41, 43. Rotary knife
41 includes the" usual steel shaft or knife bar 45 and
i.e., a ?rst segment 95 and a second segment 97, formed
of any suitable low resistant electrical conductor mate
rial, as for example, bronze or silver. For smooth and
knife blade 47 attached thereto and projecting therefrom.
Likewise, rotary knife 43 includes knife bar 49 and knife
blade 51. Rotary knives 41 and 43 are disposed one
above the other and are coupled together for synchro
nized movement with the adjacent surfaces moving in
e?icient operation, segments 95, 97 are embedded in in
sulating body ~93 and held rigid and flush with the sur
face of same. The leading edges 99, 101 (as related to
the direction of rotation) of segments 95, 97 respectively
are disposed in lateral alignment. The length of ?rst
the direction of travel of board D so that the knife blades 15 segment 95 is equal to approximately 180 degrees of the
47, 51 produce a shearing action on the board D as it
circumference of rotor 35 while second segment 97 is
passes between bars 45, 49.
equal to approximately 60 degrees of the circumference
The desired cut-length of board Dis produced by ad
of the rotor. The relationship of segments 95, 97 and
justing the speed of rotation of rotary knives 41, 43, rela
the pairs of brushes 73, 75, and 77 is such that segment
tive to the speed of travel of board D. Rotary knives
35 intermittently contacts the pair of brushes 7-3 as rotor
‘41, 43 are primarily driven by the same force which
85 is rotated and such that segment 97 intermittently
drives ‘traction belts 29, 31, so that there will be main
contacts the pairs of brushes 75, 77, respectively, as the
tained an approximate synchronization between travel
rotor is rotated. Thus, a ?rst switch, including the’ pair
of‘board D and the cutting action. Between the primary
of brushes 73 and segment 95, is established which is
driving force, which is illustrated as motor 53, and
closed when the segment 95 contacts the brushes 73 and
rotary knives 41, 43 is a variable speed transmission 55
which is open when the brushes 73 are uncontacted; a
of the split sheave type. Variable speed transmission 55
second switch, including the pair of brushes 75 and seg
is of usual construction and includes a driving sheave 57
ment 97, is established which is closed when the segment
mounted on a shaft 59 and a driven sheave 61 mounted
97 contacts the brushes 75 and which is open when the
on a shaft 63. Sheaves 57, 61 are coupled together by 30 brushes 75 are uncontacted; and a third switch, including
a belt 65. This variable speed transmission 55, which is
the pair of brushes 77 and segment 97, is established
familiar to those skilled in the art and need not be de
which is closed when the segment 97 contacts the brushes
scribed in further detail, is the means through which
77 and which is open when the brushes 77 are'un
the rotary knives 41, 43 are timed to produce the desired
contacted.
cut lengths of board D. Suitable coupling means is 35
The forward end of shaft 87 terminates at the forward
provided between motor 53 and pulleys 33, 35 which cou~
end of bearing stand 89, while the rearward end of shaft
pling means is indicated diagrammatically as by line 67
87 passes through the rearward bearing stand 90 and
and likewise suitable coupling means is provided for cou
terminates in a suitable coupling 103 which is utilized
pling motor 53 and shaft 59, which latter coupling means
to keep the motor 85 in absolute synchronizationxwith the
40 machine operation. The entire operating mechanism of
is indicated diagrammatically as at line 69.
From the foregoing description, it should be readily
timer 71, with the exception of coupling ‘103 and ad
{understood Why slippage can and does continuously
justing knobs 105, ‘and 1107, is enclosed in a protective
occur in'both the board feed to the rotary knives 41, 43
housing 109, supported from base 91. Adjusting knobs
and in the rotation of the knives, which slippage will pro—
1&5, 107 which are respectively attached to brackets 81,
duce errors causing both long and short cut-lengths of 145 33 are adapted to be turned for the arc-wise adjustment
board. Precise, two direction registration control as con
of the brackets and therefore the adjustment of brushes
templated in the present invention can eliminate these
73, 75, and '77. Through coupling 163, shaft 87 is cou~
errors and produce board cut-lengths to exact predeter
pled to the end of the upper rotary knife 41, which is
mined size. This accuratecutting of the board will elimi
indicated diagrammatically in FIG. 1, and, as hereto
nate all trim scrap at the next operation and permit the
fore explained, rotary knives 41, 43 are in synchroniza
use of preprinted ?rst liners in the manufacture of the
tion. Thus, exact synchronization, is maintained between
board.
the action of knives 41, 43 and timer 71.
Having described one type of machine with which the
Referring now to the electrical connections of the
present invention is adapted to be used, a detailed de
present invention with the electrical system of corrugator
scription of the present invention in conjunction there 55 11, a suitable scanner $111 of well-known construction is
with follows.
disposed adjacent board D, along the line of travel of the
The timing means of the present invention hereinafter
board between cotton belts 29, 31 and rotary knives 41,
designated timer 71 includes three pairs of normally open
43. Scanner 111 is connected ‘as by leads 112'to a suit
contacts under control of a rotor, which is synchronized
able control unit 113, best shown in the dashed line square
with the machine operation that must be kept under posi
in FIG. 3, and which includes the usual ampli?er 115‘,
tive registration control. Although various types of nor
‘and a relay 1-17 ‘fed ‘by the ampli?er as through leads ‘118-.
mally open, momentary contact, single pole switch de
A power source, not shown, which is preferably 115 volts‘
vices may be used other than that shown in the draw
60 cycles is brought in by feeders 1-19, 1121 and fed into
ings, the principle of operation of the present invention
control unit 113 by ‘a lead 123 and a lead 125, which lead
remains the same. In the present drawings, said nor 65 125 has interposed therein a pair of. push~button switches
mally open contacts are illustrated in the form of three
127, 129 and a main switch 131. The foregoing descrip~
pairs of spring loaded, carbon graphite brushes, i.e., a
tion of control unit 113 and the connections thereof is of
?rst pair of brushes 73, a second pair of brushes 75 and
conventional construction and it will be understood by
a third vpair of brushes 77. The pairs of brushes 73, 75,’
. those skilled in the art that the usual marks, as marks E,
and 77 are respectively carried in insulated brush holders 70 that are printed on board D at spaced intervals, will cause
79, which holders are, in turn, supported by adjustable
(arc-wise) brackets ‘81, 83, so that the pairs of brushes
73, 75 are carried by bracket 31 in lateral alignment and
the pair of brushes 77 are carried by bracket 83 at ap
proximately 90 degrees relative to the pair of brushes 75.
a light disturbance or signal as the marks pass scanner 111
which signal will be ampli?ed by the ampli?er 115‘ vand,
in turn, will cause energization of relay 117.
The timer 71 of the present invention is connected into
the above circuit as follows: A lead 133 connects‘one
3,084,579
5
of the ?rst pair of brushes 73 to a lead 135, that is con
nected to one of the second pair of brushes 75, and also
is connected to contact 137 of the relay switch 139'. The
other of the ?rst pair of ‘brushes 73 is connected by a lead
141 to a battery 143 or other source of electrical power
6
to'the control unit 113.
In a similar manner, to advance
knives 41, 43, switch 129 is pushed downwardly to com
plete the circuit to solenoid 153‘ direct from feeders 119,
121, and at the same time cut out the circuit to the con
trol unit 113.
To further describe the operation of the device of the
which, in turn, is connected to the coil of the relay 117,
the other side of the coil being connected to the arm of
present invention, when the marks E pass scanner 111,
and rotary knives 41, 43 are in synchronization therewith,
switch 139 by suitable leads which switch is also con
no corrective action is necessary and correction motor 159
nected to lead 125 on the ampli?er side of switch 131.
The other contact 145 of switch 139 is connected by a 10 will not run_ This condition of synchronization is illus
trated at Example vNo. l in FIG. 3. The relative posi
lead 147 to one of the third pair of brushes 77. The
tion of rotor 85 and rotary knives 41, 43 is shown by the
other of the third pair of brushes 77 is connected to a
two somewhat diagrammatic cross-sectional illustrations
solenoid 149 of a magnetic controller 151 by a ‘lead 152
of the rotary knives in this example (the cross section
which is also connected to switch 127. Magnetic con
troller 151 is of conventional construction and includes 15 to the left being taken as through segment 97 and the one
to the right as through segment 95, at the same instant).
another solenoid 153, which is connected to the other
Thus, it will be seen that when the feed of board D and
of the second pair of brushes 75 by a lead 155, which is
the knives 41, 43 are in synchronization, segment 97 is
also connected to switch 129. The other sides of the
clear of the second pair of brushes 75 and the third pair
coils 153, 149 are respectively connected to main lead
119 by a lead 157. Magnetic controller 151 is connected 20 of brushes 77. Also, it will be seen that the ?rst pair of
brushes 73 are in contact with ?rst segment 95, which
to a reversible correction motor 159‘ by the three leads,
closes a holding circuit to relay 117, to hold the switch
indicated as at 161. Controller 151 operates in the usual
139 against contact 137 until the ?rst pair of brushes 73
manner to connect a three-phase power source not shown,
leave the ?rst segment 95. It should be explained at this
which is led in by the three leads indicated as at 163,
respectively to the two groups of switches 165 and 167, 25 point that switch 139 was initially shifted to contact 137
from a normal position of engagement with contact 145
which are respectively operably connected to solenoids
153, 149 and arranged so that when solenoid 153 is en
ergized, and with solenoid 149 being de-energized,
switches 165 will be closed to run the motor 159 in one
direction (an advance direction, as will 'be more apparent
in the description to follow) and when the solenoid 149'
is energized with solenoid 153 being de-energized, the
switches 167 are closed to run the motor 159 in the op
by the disturbance of light on scanner 111 when the mark
E passed the scanner. This action took place since the
scanner is attached to ampli?er 115, which, in turn, ener
gizes the coil of relay 117 to draw the switch 139 to con
tact 137. When the ?rst pair of brushes 73 leave ?rst
segment 95, then the switch 139 will return to its posi
tion of engagement with contact 145, as shown in the
drawing. It will be understood that the aforementioned
Motor 159 is coupled by suitable coupling means, in 35 holding circuit will be completed when switch 139 ?rst
posits direction (a retard direction).
dicated diagrammatically by the line 168, to a worm 1619
of a differential transmission 170. Differential transmis
sion 170 is of conventional construction and the out-put
shaft 63 of variable speed transmission 55, which is con
nected to the in-put shaft 171 of the differential trans
mission by suitable connection means indicated diagram
contacts the contact 137 as above described, since the
circuit is completed through lead 135, lead 133, the ?rst
pair of brushes 73, lead 141, battery 143, the coil of relay ’
117 and back to switch 139.
‘Example No. 2 of vFIG. 3 illustrates the condition which
exists when the rotary knives 41, 43 are retarded rela
matically as at 173, causes rotation of cage 175 which,
in turn, causes cage gear 177 to drive an out-put shaft
tive to the marks B when the marks pass scanner 111.
will be understood that the gear 183 of differential trans
1, except a different position is shown. It will be seen
in Example No. 2 that second segment 97 is still in con
tact with the second pair of brushes 75. This closes an
advance circuit to solenoid 153, since switch 139 is in
engagement with contact 137 due to the fact that the
In this example, the complete system is not shown but
only scanner 111, board D, rotary knives 41, ‘43 and the
179 of transmission 171) through gear 181. Out-put shaft
179 is connected to rotary knives 41, 43 by suitable cou-i 45 two diagrammatic illustrations of the rotor 85, which
diagrammatic views are similar to those of Example No.
pling means indicated diagrammatically as at 182. It
mission 169, which gear 183 is keyed to a shaft 185, is
normally held stationary with a wormwheel1187 engaging
worm 169.
In other words, when no correction is re
quired, motor 159 is not running and, therefore, worm
169 is stationary which holds Worm Wheel 187, shaft 185,
scanner has received the signal from mark‘ E.
For
clari?cation, said advance circuit is traced as follows:
and gear 183 stationary.
Feeder 119; lead 157; solenoid 153; lead 155; the second
From the foregoing, it will be understood that motor
53 drives rotary knives 41, 43- through variable transmis 55 pair of brushes 75; segment 97; lead 135; contact 137;
switch 139; lead 125; switches 131, 129 and 12.7; lead
sion 55 and differential transmission 17 t). It will further
125; and feeder 121. The above described energization of
be understood that drive of motor 159‘ in one direction
will cause a shift in one direction of the position of
solenoid 153 causes the correction motor 159 to run in a
direction to shift or advance rotary knives 41, 43 rela
of motor 159 in the other direction will cause an opposite 60 tive to the movement of board D. This advance is due
to the action of the differential transmission 176', since
shift of the knives relative to the pulleys.
rotary knives 41, 43 relative to pulleys 33, 35, and drive
In the operation of the device of the present invention,
it will be understood that main switch 131 must be closed
in order to make the scanner 111 and the registration con
worm 169 causes shift of gear 183 in a direction to cause
gear 177 and gear 181 to shift the rotary knives in an
advance direction. This advance will continue as long as
trol device operative, and if for any reason it is desired 65 segment 97 remains in contact with the second pair of
brushes 75. Also, segment 95 keeps the holding circuit
to run the machine without any correction by the registra
closed as heretofore explained, which, in turn, keeps
tion control device, as for example, during the warm-up
switch 139 in engagement with contact 137 and away
period, the switch 131 is kept open. Also, from the cir~
from contact 145 whereby the retarding circuit (herein
cuit shown in FIG. 3, it will be understood that switches
127, 129 are useful to manually control the advance or 70 after more fully explained) is open, All during this time,
the late position or timing of the rotary knives 41, 43
retard of knives 41, 43 relative to ‘board D, as for ex
is corrected.
ample, to set up the machine in preparation for a run.
In Example No. 3 illustrated in FIG. 3, the feed of
Thus, to retard knives 41, 43, switch 127 is pushed down
board D to the rotary knives 41, 43 is late and scanner
wardly to complete the circuit to solenoid 149‘ direct from
feeders 119, 121 and at the same time out out the circuit 75 111 receives no signal (light disturbance) when it is due.
3,084,579
.
8
registered position with said indicia and an indicium'is
With rotary knives 41, 43 in an advanced position relative
to the board, second segment 97 comes in contact with
the third pair or" brushes 77, and as relay 117 has not yet
acted, the retarding circuit to solenoid 149 is closed and
positioned under said photoelectric scanning means said
second segment is positioned intermediate said second
and third pairs of brushes; a relay including a single pole
the correction motor 159 moves rotary knives d1, 46 in a
double throw switch having a movable arm and a ?rst
retarding direction relative to board D. ‘For clari?cation,
said retarding circuit is traced as follows: Feeder 119;
lead 157; solenoid M9; lead 152; the third pair of brushes
contact normally engaged by said arm and having asec
"77; segment 97; lead 147; contact 145; switch 13%; lead
125; switches 131, 129, and 127; lead 125; and feeder 121.
This above described retarding of the rotary knives 41,
ond contact normally disengaged from said arnnsaid
relay being electrically coupled to said scanning means
and operable in response thereto upon operation of said
10 scanning means ‘by said indicia to cause said relay arm
to disengage from said ?rst contact and engage said
43 continues until the scanner 111 receives a signal and
second contact, a holding circuit means including a source
board D is again in proper timing with the knife action.
When scanner 111 receives a signal, the control relay 117
will open the said retarding circuit and will keep that cir
cuit open until segment @5 leaves the ?rst pair of brushes
73 and allows the relay switch 139 to go back to its
of electrical power and said ?rst switch, said ?rst switch
being arranged so that said ?rst switch is closed during
a portion of the cycle of said cutting means when said
cutting means is adjacent one of said indicia, said hold
ing circuit means being operably connected to said relay
original position.
to hold said arm in engagement with said second contact
it is to be understood that it is not to be so limited since
and said second switch, said second switch being ar
ranged so that when said cutting means is in a retarded
for a portion of the cycle of said cutting means, an ad
Although the invention has been described and illus
trated with respect to a preferred embodiment thereof, 20 vance circuit means‘ including a source of electrical power
changes and modi?cations may be made therein which
disposition relative to said indicia said second switch is
closed, said advance circuit being connected to said sec
ond contact and to said controller, and said advance
circuit means being arranged so that engagement of said
second contact by said arm and closure of said second
switch is effective to complete said advance circuit means
are within the full intended scope of this invention as
hereinafter claimed.
I claim:
1. In a repeat cycle machine of the type including ro
tatable cutting means, feed rolls positioned to feed said
cutting means a continuous piece of material marked by
and impart a current to said controller to turn said motor
spaced indicia, drive means for driving said feed rolls,
motion transmission means for transmitting motion from 30 means in an advanacing direction and through said mo
tion transmission means to move directly said cutting
said drive means to said cutting means so that said cut
means before cutting said material to a position of sub
ting means is adapted to cut said material into prede
stantially exact register with said indicia, a retarding cir
termined lengths, photoelectric scanning means located
cuit means including a source of electrical power and
ahead of said cutting means and being responsive to the
said third switch, said third switch being arranged so
indicia on said piece of material before cut, and control
that when said cutting means is in an advanced position
means including a controller and a reversible motor means
relative
to said indicia said third switch is closed, said
controlled thereby and connected to said motion trans
retarding circuit means being connected to said ?rst con
mission means for moving the position of said cutting
tact and to said controller, said retarding circuit means
means relative to said feed rolls and said indicia; the
improvement for maintaining said cutting means in reg 40 being arranged so that engagement of said ?rst contact‘
by said arm and closure of said third switch is effective
ister with said indicia; said improvement comprising a
to complete said third circuit means and impart a cur
timer including a shaft, means coupling said shaft to
rent to said controller to turn said motor means in a re
said cutting means, a cylindrical insulator mounted on
tarding direction and through said motor transmission
said shaft for rotation therewith, a ?rst electrical con
ductor segment mounted on said insulator circumferen
means to move directly said cutting means before cutting
said material to a position of substantially exact register
tially thereof and extending substantially 180‘ degrees
with said indicia, and said second and third switches being
arranged so that the switches are open when said cutting
around the circumference of said insulator, said ?rst seg
ment including a leading edge, a second electrical con
ductor segment mounted on said insulator circumferen
means is in register with said indicia and an indicium is ,
positioned under said photoelectric scanning means where
tially thereof in parallel spaced relationship to said ?rst
segment and extending substantially 60‘ degrees around
by no correction is made.
tatable cutting means, feed rolls positioned to teed said
including a leading edge disposed in substantial align
cutting means a continuous piece of material marked
ment with said leading edge of said ?rst segment, a ?rst
pair of brushes disposed in the path of said ?rst segment
whereby to establish a ?rst switch which is closed ‘when
said ?rst pair of brushes are contacted by said ?rst seg
ment and open when the ?rst pair of brushes are uncon
tacted, a second pair of brushes in alignment with said
?rst pair of brushes disposed in the path of said second
segment whereby to establish a second switch which is
closed when said second pair of brushes are contacted
by said second segment and open when the second pair
of brushes are uncontacted, a third pair of brushes dis
7
2. In a repeat cycle machine of the type including ro
the circumference of said insulator, said second segment
55
by spaced indicia, drive means for driving said teed rolls,
motion transmission means for transmitting motion from
said drive means to said cutting means so that said
cutting means is adapted to cut said material into pre
determined lengths, photoelectric scanning means located
ahead of said cutting means and being responsive to the
indicia on said piece of material before cut, and control
means including a controller and a reversible motor
means controlled thereby and connected to said motor
transmission means for moving the position of said cut
posed in the path of said second segment whereby to
65 ting means relative to said ‘feed rolls and said indicia;
establish a third switch which is closed when said third
pair of brushes are contacted by said second segment and
open when the third pair of brushes are uncontacted,
register with said indicia, said improvement comprising
the improvement for maintaining said cutting means in
a relay including a single pole double throw switch hav
ing a movable arm and a ?rst contact normally engaged
from said second pair of brushes an angular distance 70 by said arm and having a second contact normally dis
engaged from said arm, said relay being electrically cou- _
slightly greater than 60‘ degrees whereby said second seg
pled to said scanning means and operable in response
ment is adapted to be positioned intermediate said sec
said third pair of brushes being spaced circumferentially
ond and third pairs of brushes in spaced relation thereto,
the relationship of said cutting means and said second
segment being such that when said cutting means is in a
thereto upon operation of said scanning means by said
indicia to cause said relay arm to disengage from said
first contact and engage said second contact, a holding
3,084,579
10
circuit means including a source of electrical power and
a normally open ?rst switch, said ?rst switch being op
erably connected to said cutting means and arranged so
that said ?rst switch is closed during a portion of the
cycle of said cutting means when said cutting means is
adjacent one of said indicia, said holding circuit means
being operably connected to said relay to hold said arm
in engagement with said second contact for a portion of
the cycle of said cutting means, an advance circuit means
tacted, a second pair of brushes in alignment with said
?rst pair of brushes disposed in the path of said second
segment whereby to establish a second switch which is
closed when said second pair of brushes are contacted
by said second segment and open when the second pair
of brushes are uncontacted, and a third pair of brushes
disposed in the path of said second segment whereby to
establish a third switch ‘which is closed when said third
including a source of electrical power and a normally
pair of brushes are contacted by said second segment and
open when the third pair of brushes are uncontacted, said
open second switch, said second switch being operably
third pair of brushes being spaced circumferentially from
connected to said cutting means and arranged so that
when said cutting means is in a retarded disposition rela
said second pair of brushes an angular distance slightly
greater than 60 degrees whereby said second segment is
tive to said indicia said second switch is closed, said ad
adapted to be positioned intermediate said second and
vance circuit being connected to said second contact and 15 third pairs of brushes in spaced relation thereto, the re
to said controller, and said advance circuit means being
arranged so that engagement of said second contact by
said arm and closure of said second switch is effective
to complete said advance circuit means and impart a
current to said controller to turn said motor means in
an advancing direction and through said motion trans
mission means to move directly said cutting means be
fore cutting said material to a position of substantially
lationship of said cutting means and said second seg
ment being such that when said cutting means is in a
registered position with said indicia and an indicium
is positioned under said photoelectric scanning means said
second segment is positioned intermediate said second
and third pairs of brushes; a normally open ?rst circuit
means responsive to said photoelectric scanning means
for the closing thereof upon passage of an indicium by
exact register with said indicia, a retarding circuit means
the scanning means, said ?rst switch being interposed in
including a source of electrical power and a normally 25 said ?rst circuit means, a normally open second circuit
open third switch, said third switch being operably con
nected to said cutting means and arranged so that when
said cutting means is in an advanced position relative
to said indicia said third switch is closed, said retarding
circuit means being connected to- said ?rst contact and
to said controller, said retarding circuit means being
arranged so that engagement of said ?rst contact by said
arm and closure of said third switch is effective to com
plete said third circuit means and impart a current to
said controller to turn said motor means in a retarding
means operably coupled to said ?rst circuit means and
said control means, said second switch being interposed
in said second circuit means, said second circuit means
being arranged so that closure of said second switch when
said ?rst circuit means is closed is effective to close said
second circuit means, closure of said second circuit means
being eifective through said control means and said mo
tion transmitting means to advance directly said cutting
means relative to said material before the cutting thereof
by substantially the exact amount to correct for a lagging
direction and through said motion transmission means
condition of said cutting means, a normally open third
to move directly said cutting means before cutting said
circuit means operably coupled to said ?rst circuit means
material to a position of substantially exact register with
and said control means, said third switch being inter
said indicia, and said second and third switches being
posed in said third circuit means, said third circuit means
arranged so that the switches are open when said cutting 40 being arranged so that closure of said third switch when
means is in register with said indicia and an indicium is
said ?rst circuit means is open is effective to close said
positioned under said photoelectric [scanning means
third circuit means, closure of said third circuit means
whereby no correction is made.
being etfective through said control means and said mo
tion transmitting means to retard directly said cutting
3. In a repeat cycle machine of the type including cut
means relative to said material before the cutting thereof
ting means, feed rolls positioned to feed said cutting
by substantially the exact amount to correct for an ad
means a continuous piece of material marked by spaced
vanced condition of said cutting means.
indicia, drive means for driving said feed rolls, motion
transmission means for transmitting motion from said
4. In a repeat cycle machine of the type including cut
drive means to said cutting means so that said cutting
ting means, feed rolls positioned to feed said cutting means
means is adapted to out said material into predetermined 50 a continuous piece of material marked by spaced indicia,
lengths, photoelectric scanning means located ahead of
drive means for driving said feed rolls, motion transmis
said cutting means and being responsive to the indicia on
sion means for transmitting motion from said drive means
said piece of material before cut, and control means con
torsaid cutting means so that said cutting means is adapted
nected to said motion transmitting means for moving the
to out said material into predetermined lengths, photoelec
position of said cutting means relative to said feed rolls 55 tric scanning means located ahead of said cutting means
and said indicia; the improvement for maintaining regis
and being responsive to the indicia on said piece of ma
ter of said cutting means with said indicia, said improve
terial before cut, and control means connected to said mo
ment comprising a timer including a shaft, means coupling
tion transmitting means for moving the position of said
said shaft to said cutting means for the conjoint rotation
cutting means relative to said feed rolls and said indicia;
of said shaft with said cutting means, a cylindrical insu 60 the improvement ‘for maintaining register of said cutting
lator mounted on said shaft for rotation therewith, a ?rst
means with said indicia, said improvement comprising a
electrical conductor segment mounted on said insulator
?rst switch operably coupled to said cutting means and
circumferentially thereof and extending substantially 180
arranged so that said ?rst switch is closed during a por
degrees around the circumference of said insulator, said
tion of the cycle of said cutting means when said cutting
?rst segment including a leading edge, a second electrical
means is adjacent one of said indicia, a second switch
operably coupled to said cutting means and arranged so
conductor segment mounted on said insulator circumfer
entially thereof in parallel spaced relationship to said ?rst
that said second switch is closed during the ?rst part of
segment and extending substantially 60‘ degrees around
the circumference of said insulator, said second segment
said portion of the cycle when said ?rst switch is closed,
a third switch operably coupled to said cutting means and
including a leading edge disposed in substantial align 70 arranged so that said third switch is closed during the last
ment with said leading edge of said ?rst segment, a ?rst
part of said portion of the cycle when said ?rst switch is
pair of brushes disposed in the path of said ?rst segment
closed, a normally open ?rst circuit means responsive to
said photoelectric scanning means for the closing thereof
whereby to establish a ?rst switch which is closed when
said ?rst pair of brushes are contacted by said ?rst seg
upon passage of an indicium by the scanning means, said
'ment and open when the ?rst pair of brushes are uncon 75 ?rst switch being interposed in said ?rst circuit means, a
3,084,579
1I
12
normally open second circuit means operably coupled to
by said indicia to cause said relay arm to disengage from
said ?rst circuit means and said control means, said sec—
said ?rst contact and engage said second contact, a hold
ing circuit means including a source of electrical power
ond switch being interposed in said second circuit means,
said second circuit means being arranged so that closure
of said second switch when said ?rst circuit means is
closed is effective to close said second circuit means, clo
sure of said second circuit means being effective through
said control means and said motion transmitting means
to advance directly said cutting means relative to said
and said ?rst switch, said ?rst switch being arranged so
that said ?rst switch is adapted to be closed during a por~
tion of the cycle of said ?rst object when said ?rst object
is near synchronization with one of said indicia, said hold
ing circuit means being operably connected to said relay
to hold said arm in engagement with said second contact
material before the cutting thereof by substantially the 10 for a portion of the cycle of said ?rst object, an advance
circuit means including a source of electrical power and
exact amount to correct for a lagging condition of said
cutting means, a normally open third circuit means oper
ably coupled to said ?rst circuit means and said control
said second switch, said second switch being arranged
means, said third switch being interposed in said third
circuit means, said third circuit means being arranged
so that closure of said third switch when said ?rst circuit
closed, said advance circuit being connected to said sec
ond contact and to said cont-roller, said advance circuit
means is open is effective to close said third circuit means,
closure of said third circuit means being effective through
so that when said ?rst object is in a retarded disposition
relative to said indicia said second switch is adapted to be
means being arranged so that engagement of said second
contact by said arm and closure of said second switch is
effective to complete said advance circuit means and im
said control means and said motion transmitting means
to retard directly said cutting means relative to said ma
part a current to said controller to turn said motor means
terial before the cutting thereof by substantially the exact
in an advancing direction and through said motion trans
mission means is adapted to move directly and substan
amount to correct for an advanced condition of said cut
ting means.
5. A control system for synchronizing the rotation of
a ?rst object, driven by drive means through a motion
transmission means, with the indicia on a moving second
object; said control system comprising photoelectric
scanning means adapted to be responsive to said indicia,
means including a controller and a reversible motor means
tially immediately said ?rst object to a position of regis
ter with said indicia, a retarding circuit means including
a source of electrical power and said third switch, said
third switch being arranged so that when said ?rst object
is in an advance position relative to said indicia said
third switch is adapted to be closed, said retarding circuit
means being connected to said ?rst contact and to said
controlled thereby and adapted to be connected'to said 30 controller, said retarding circuit means being arranged so
that engagement of said ?rst contact by said arm and clo
motion transmission means for moving the position of
sure of said third switch is effective to complete said
said ?rst object relative to said indicia, a timer including
third circuit means and impart a current to said controller
a shaft, means for coupling said shaft to said ?rst object
to turn said motor means in a retarding direction and
‘for rotation therewith, a cylindrical insulator mounted
on said shaft for rotation therewith, a ?rst electrical con—
ductor segment mounted on said insulator circumferen
tially thereof and extending substantially 180‘ degrees
through said motor transmission means is adapted to
move directly and substantially immediately said ?rst
object to a position of register with said indicia, and said
second and third switches being arranged so that the
switches are adapted to be open when said ?rst object is
4-0 in register with said indicia and an indicium is positioned
under said photoelectric scanning means whereby no cor
tially thereof in parallel spaced relationship to said ?rst
rection is made.
segment and extending substantially 60‘ degrees around
‘6. A control system for synchronizing the movement
the circumference of said insulator, said second segment
of a ?rst object, driven by drive means through a motion
including a leading edge disposed in substantial alignment
transmission means, with the indicia on a second object;
with said leading edge of said ?rst segment, a ?rst pair of
around the circumference of said insulator, said ?rst
segment including a leading edge, a second electrical con
ductor segment mounted on said insulator circumferen
brushes disposed in the path of said ?rst segment whereby
said control system comprising photoelectric scanning
to establish a ?rst switch which is closed when said ?rst
means adapted to be responsive to said indicia, means
adapted to be connected to said motion transmission
pair of brushes are contacted by said ?rst segment and
opened when said ?rst pair of brushes are unoontacted, a
second pair of brushes in alignment with said ?rst pair of
brushes disposed in the path of said second segment
whereby to establish a second switch which is closed when
said second pair of brushes are contacted by said second
segment and opened when said second pair of brushes
I are unoontacted, a third pair of brushes ‘disposed in the
means for moving the position of said ?rst object rela
tive to said indicia, a ?rst switch adapted to be operably
coupled to said ?rst object and arranged so that said ?rst
switch is closed during a portion of the time of the move
ment of said ?rst object, a second switch adapted to be
operably coupled to said ?rst object and arranged so that
said second switch is closed during the ?rst part of said
portion of the time when said ?rst switch is closed, a
third switch adapted to be operably coupled to said ?rst
object and arranged so that said third switch is closed dur
ing the last part of said portion of the time when said ?rst
path of said second segment whereby to establish a third
switch which is closed when said third pair of brushes
are contacted by said second segment and opened when
said third pair of brushes are unoontacted, said third pair
of brushes being spaced circumferentially from said sec 60 switch is closed, a normally open ?rst circuit means re
sponsive to said photoelectric scanning means for the
ond pair of brushes an angular distance slightly greater
closing thereof upon passage of an indicium by the scan
than 60 degrees whereby said second segment is adapted
ning means, said ?rst switch being interposed in said ?rst
to be positioned intermediate said second and third pairs
circuit means, a normally open second circuit means oper
of brushes in spaced relation thereto, the relationship of
ably coupled to said ?rst circuit means and said control
said ?rst object and said second segment being adapted
means, said second switch being interposed in said second
to be such that when said ?rst object is in a registered
circuit means, said second circuit means being arranged so
position with said indicia and an indicium is positioned
that closure of said second switch when said ?rst circuit
under said photoelectric scanning means said second
means is closed is etfective to close said second circuit
segment is positioned intermediate said second and third
means, closure of said second circuit means being adapted
pairs of brushes; a relay including a single pole double
normally engaged by said arm, and having a second con
to be effective through said control means and said mo
tion transmission means to advance directly and substan
tact normal-1y disengaged ‘from said arm, said relay being
electrically coupled to said scanning means and operable
in response thereto upon operation of said scanning means
by substantially the exact amount to correct for a lagging
condition of said ?rst object, a normally open third cir
throw switch having a movable arm and a ?rst contact
tially immediately said first object relative to said indicia
3,084,579
13
14
cuit means operab-ly coupled to ‘said ?rst circuit means
References Cited in the ?le of this patent
and said control means, said third switch being interposed
in said third circuit means, said third circuit means being
arranged so that closure of said third switch when said
?rst circuit means is open is re?ective to close said third 5
circuit means, closure of said third circuit means being
UNITED STATES PATENTS
1,913,153
1,961,538
2,002,374
2,050,316
2,105,185
2,429,500
substantially immediately said ?rst object relative to said
second object by substantially the exact amount to cor- 10 2,529,161
2,543,077
rect for an advance condition of said ?rst object.
2,655,994
2,966,086
adapted to be effective through said control means and
said motion transmission means ‘to retard directly and
1933
1934
King _______________ __ May 21, 1935
Salardi ______________ __ June 6,
Weber _______________ __ June 5,
Gulli'ksen ____________ __ Aug. 11,
Degnan _____________ __ Ian. 11,
Wolfner _______ __ ____ __ Oct. 21,
Kelling _____________ __ Nov. 7,
Treseder _____________ __ Feb. 27,
Vandenberg _________ __ Oct. 20,
Sjostrom _____________ __ Dec. 27.
1936
1938
1947
1950
1951
1953
1960‘
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