close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3031962

код для вставки
May 1, 1962
H. A. w. BACKHIOFF ET AL
3,031,952 -
APPARATUS FOR FEEDING CONTINUOUS WEBS OF STATIONERY
Filed June 6, 195a
5 Sheets-‘Sheet 1
'
52
25
FIG. 3_
INVENTORS
HAROLD ANJBACKHOFF
B‘ R EcnNALD BEECH
ATTORNEYS
May 1, 1962,
'
H. A. w. BACKHOFF ET AL
3,031,952
APPARATUS FOR FEEDING CONTINUOUS WEBS OF STATIONERY
Filed June 6. 1958
5 Sheets-Sheet 2
F164.
BY
lnvsu'roes
HAROLD A.W. BACKHOF'F
REmNALb BEECH
Malawi“, WHLJALU» Emkm
ATTORNEYS '
May 1, 1962
H. A. w. BACKHOFF ET AL
3,031,952
APPARATUS FOR FEEDING CONTINUOUS WEBS OF STATIONERY
Filed June 6, 1958
5 Sheets-Sheet 3
|NVENTOR$
HAROLD A-wfBAukl-loFF
5T4 RECHN ALD 1555c“
MWA?wAAW-mmm
Arman“;
May 1, 1962
H. A. w. BACKHOFF ET AL
3,031,952
APPARATUS FOR FEEDING CONTINUOUS WEBS OF STATIONERY
Filed June 6, 1958
5 Sheets-Sheet 4
4a
/0
2/ Ma I, 2/
20
8
-
>
'
-
/9
O
9
©
—/9
(“A
l3
/5
©
/6
u
/4
Q
:I
r
\
I
@ /M
%\ 0
FIG. 6.
iNvEN'roRs
HAROLD AMI. BACKHOFF
B‘ RECHNMD 'BEEU-k
ATTORNEYS
May 1, 1962
H. A. w. BACKHOFF ET AL
3,031,952
APPARATUS FOR FEEDING CONTINUOUS WEBS OF STATIONERY
Filed June 6, 1958
5 Sheets-Sheet 5
WvEN'roQs
“wow A-W-BACKHOFF'
EVPE-‘CHNALD BEECH
uacmxmwmnhmgn-s
ATToszNaYs
3,031,952
we
United States Patent
1C6 ,
Patented May 1, 1962
2
1 .
the feed of the web, the position of the aperture being
,
such‘ that when an area to be imprinted is at imprinting
3,031,952
position, the aperture will be aligned with contacts to
permit their engagement to close the electrical circuit.
APPARATUS FOR FEEDING CONTINUOUS WEBS
OF STATIONERY
Harold Albert William Backho?r‘, Richmond, and Reginald
Beech, Chiswick, London, England, assignors to Egry
Limited, London, England
.
Filed June 6, 1958, Ser. No. 740,227
Claims priority, application Great Britain June 12, 1957
5 Claims. (Cl. 101—57)
If two or more imprinting operations are to be effected,
when the web is arrested to position the last area to receive
an imprint at the imprinting position, the line of perfora
This invention relates to apparatus for feeding contin
uous webs of stationery in addressing 01' like machines,
the webs being of the kind which are divided by longi
tions at the leading end of the form length will be cor
rectly positioned with respect to the web severing mech
anism.
The contacts may include a metal sensing brush adapted
to make wiping contact over the web and a metal contact
located on the feed plate over which the web is fed so
that when the aperture is aligned with the brush the
tions into a series of connected form lengths, the lines 15 latter will engage the said contact. 7
The means for controlling the operation of the web
of perforations providing means by which a form length
severing mechanism may include a manually adjustable
can be readily severed from the remainder of the web
switch adapted to be preset to close an electrical circuit
after it has been fed past an imprinting position in the
to
energise the solenoid to operate the said mechanism
addressing or like machine.
after
a predetermined number of imprinting operations
_As the web is fed through the addressing or like ma 20
have been completed. ,The switch may include a' rotor
chine an imprint, for example particulars of a name and
arm rotatable over a series of spaced contacts, the arm
address may be required to be imprinted at one or more
being
adapted to be given a rotary step like movement
longitudinally spaced areas on each form length, the im
tudinally spaced transversely extending lines of perfora
from one contact to the next each time an imprinting >
printed form length being adapted to be severed from
the remainder of the web after the imprinting operation 25 operation is completed. The switch is adjustable to make
has been completed. The web is severed by bursting or
tearing along one of the transverse lines of perforations '
selected contacts operable to complete or prepare a cir
cuit to the solenoid for actuating the severing mech
by a web severing device and it is accordingly important
that the transverse lines of perforations should be accu
anism; for‘ example, the switch can be adjusted so that
engagement of the rotor on every alternate, or every third,
It is an object of the present invention to provide means
for controlling the feeding of the continuous web to
with a selected contact prepares the circuit, but the cir
or other number of the contacts will complete the
rately positioned relative to the severing device when the 30 fourth
said
circuit.
Preferably the engagement of the rotor
latter‘ is to be actuated.
cuit is not ?nally completed until the last imprinting op
eration has been effected.
ensure that the areas to receive an imprint will be cor
rectly positioned at the printing position and that the 35 To enable the invention to be fully understood it will
now be described with reference to the accompanying
transverse perforated line along which the web is to be
drawings in which:
torn will be accurately positioned with respect to the
FIG. 1 is an end view of apparatus according to one
web severing device and further to provide control means
embodiment of the invention in the form of a unit adapted
for automatically operating the severing device after a
)selected number of imprinting operations have been 40 to be positioned adjacent to an addressing machine for
receiving continuous stationery fed through the machine,
effected.
FIG. 2 is a plan view of the unit in assembled relation
According to the present invention apparatus for op
with an addressing machine,
erating on a continuous stationery web divided by longi
FIG. 3 is a‘ fragmentary side view partly in section,
tudinally spaced transverse lines of perforations into a
of
the printing head and associated parts of the addressing
45
series of connected form lengths, includes electrically
machine,
actuated means for feeding the web to an imprinting po
FIG. 4 is a plan view of the unit on an enlarged scale,
sition, electrically actuated control means for arresting
part
of the top plate being broken away,_
the web at said position, means for arresting the web
FIG. 5 is an end view of an enlarged scale, of part of
when the transverse lines of perforations at the leading
end of the form length is correctly positioned with respect
to the web severing mechanism, and manually adjustable
means for controlling the operation of said mechanism
to effect a severing operation when a selectednumber
of imprinting operations have been carried out on the
the unit illustrating the web severing mechanism,
FIG. 6 is a sectional side view on line 6—6 of FIG.
5 showing the web feeding and severing mechanism, and,
FIG. 7 is a circuit diagram of the electrical control
means.
As shown in the accompanying drawings the apparatus
form length. If two or more imprinting operations are 55
comprises a unit A adapted to be used with an addressing
to be effected on each form length, the control means
will be such that the web severing mechanism will be
automatically actuated when the last imprinting opera
tion has been completed at‘which time the transverse
line of perforations at the leading end of the web will be 60
accurately positioned with respect to the web severing
mechanism.
_
r
The areas in each form length which are to be im
machine indicated by B, the unit being positioned in juxta
posed relation to the machine-B at the out feed side there
vof'so that a continuous web of stationery imprinted in the
addressingmachine will be fed to the unit.
The Unit A comprises a casing 1 having a horizontally
disposed feed table 2 extending in the same plane as the
bed plate '3 of the addressing machine. For feeding the
stationery web a feed roller 4 is provided mounted on a
printed may be equi-spaced or disposed at irregular in
tervals and the invention has the important advantage that 65 shaft 5 and extending transversely of the bed plate 3. The
roller 4 is adapted to be rotated by an electric motor M
the control means can be arranged to arrest the web in
through a train of gears, the shafts of two of which are
correct position to suit the particular location of the vari
indicated by 6 and 7.
ous areas.
_
The motor M is adapted to be running continuously
The means for arresting the web may be controlled
'by the web, for example the latter may be formed with an 70 vwhen the unit A is being used and is connectable with the
?rst gear of the gear train by an electrically operated
aperture in each form length to permit the engagement
of electrical contacts to close an electrical circuit to stop ' '‘
clutch which is energised into engaged position to couple
3,031,952
3,
.
the feed roller to the motor when the stationery is to be
fed and is de-energised into disengaged position when the
desired feed movement of the stationery has been com—
pleted. An electrically operated brake is also provided
which is adapted to be energised to impart a braking action
on the drive for the web feeding means when the clutch
is disengaged.
A
The arrangement is such that when the head 26 is in
its lowermost position in effecting an imprint on the web
of stationery, the left hand edge of the extension 29
will engage the plunger 30 and the switch S1 so as to
force it inwardly. As the head starts to rise the edge
of the extension will be pivoted away' from the plunger
and allow it to be moved outwardly by its spring 31
A pair of transversely spaced feed rollers 4a is provided,
during which movement the actuating arm of the switch
the rollers being disposed in parallel superposed relation
S1 will be actuated to close the switch. Accordingly
to the feed roller 4. Each roller 45 is carrier on an arm 10 the switch S1 is closed during the ?rst part of the upward
8 pivoted at 9. Each arm is urged downwardly by a
movement of the head 26. When the head is in its
spring 10 to press the respective rollers 4a into resilient
uppermost position the right hand edge of the extension
engagement with the driving roller 4, so as to co-operate
29 will engage the plunger 30 of the switch S2 and force
therewith to feed the web.
it inwardly but without operating the switch. When
Forwardly of the feeding rollers, web severing means 15 however the head starts to descend the said edge will
is provided including a blade 11 having a lower cutting
pivot away from the plunger to permit the latter to be
edge 12 of inverted V-shape the inclined edge portions 13
moved outwardly by its springs 31 so that the switch
being adapted when the blade is moved downwardly, to
‘ engage opposite side edges of the stationery web to initiate
S2 will be closed during the ?rst part of the downward
movement of the head 26.
a cutting operation inwardly of the side edges of the web 20 The operation of the stationery feeding and severing
along a transverse line of perforations formed in the web.
mechanism is controlled by electrically actuated means
The blade 11 is supported on a blade holder 14 having
as will be fully understood by reference to the circuit
upwardly extending portions 14a connected to the op
diagram illustrated in FIG. 7.
posite ends of the blade. The holder 14 is guided for
As shown S represents a switch provided with a series
reciprocating movement through a transverse gap 15 25 of 48 equi-spaced contacts and S3 a rotor which is adapted
through ?xed clamping plates 16. The holder is sup
to be given a rotational stepping movement from one
ported on a pair of posts 17 mounted for vertical recipro
contact to the next on the energisation of a solenoid each
cating movement, the posts being urged upwardly by
time an imprinting operation is e?ected by the printing
springs 18 to position the blade 11 in upwardly spaced
head 26 of the addressing machine. SW is a preselector
relation to the ?xed clamping plates 16 in alignment with 30 switch consisting of four arcuate segments SWa, SW1’,
the gap 15.
' .
g
The holder 14 is adapted to be drawn downwardly
SW°, SW9, each having three contacts SW1, SW2, SW3.
A four arm contact lever SWR is provided and adapted
to effect a web severing operation by a solenoid, the
to be rotated manually to position its arms in engage
armature of which is connected with a link 18a secured
ment with either of the contacts SW1, SW2 or SW3.
centrally to the holder 14.
_
BS represents a solenoid which when energised applies
35
A pair of movable clamping plates 19 is provided,
the brake previously referred to and BR is a relay for
guided for vertical reciprocating movement; the movable
controlling the circuit to BS. CS is a solenoid which
clamping plates are normally urged into the position in
when energised actuates a clutch to couple the motor M
dicated in the drawing by springs and are adapted to
to the gearing to effect the rotation of the feed roller
be depressed by the rotation of bell crank levers 20 piv 40 5 and CR is a relay for controlling the circuit of the
oted at 203' to a ?xed part of the frame of the unit.
solenoid CS.
The free end of one arm of each bell crank has an ad
The rotor S3 of switch S is electrically connected to each
justable stud 21 for engaging the upper face of the re
of the contacts SW1 of the preselector switch SW and
spective plate 19. The other arm is connected by pin
the ?xed contacts of the switch S are connected to the
and slot means with a link 22 pivoted at 23 and provided
selector switch as follows. The contact members 2, 4,
with a roller 24. The latter is disposed in the path of
8 and 10 and the multiples thereof with the exception
a member carried by, and reciprocating with, the blade
of contacts 6 and 12 and their multiples are connected
holder 14 such that when the holder is moved downward
to the contacts SW2 of the contacts SWa and SWd,
ly roller 24 will be forced outwardly to pivot the link
contacts 3, 9, 15, 21, 27, 33, 39 and 45 are connected
22 outwardly about its pivot and thereby etfect rota
to the contacts SW3 of the segments SW9‘ and SW‘1 and
tion of the bell crank lever 20 to move the clamping v50 the contacts 6, 18, 30 and 42 are connected to contacts
plates 19 downwardly towards the ?xed clamping plates
SW2 and SW3 of the segments SW”, SW“. The contacts
16 so as to clamp a web of stationery positioned on
the latter.
I
The operation of the means for feeding the continuous
stationery over the feed table 2 and the operation of the
blade and clamping means is electrically controlled by
the transmission of electrical impulses from means in
the addressing machine.
12, 24, 36 and 48 are connected to one arm of the
rotor SWR, the oppositely disposed arm being connected
with a relay GRZ, which is preset electrically by the
‘relay GR‘, and energised by an impulse from switch
S2 after the rotor S3 of switch S has been moved to
make electrical contact with the pro-selected contacts
of rotary switch S, and is then latched by the pre-setting
The addressing machine includes a frame 25 supporting
effected by relay 6R1.
the bed plate 3. A printing head 26 is pivoted at 27 60 The selector switch is used to control the operation of
for reciprocating movement towards and away from a
mechanism for severing a form length from the continu
platen 28 so as to co-operate in known manner with
ous stationery being fed and by adjusting the position
printing plates fed into position on the platen.
of the rotor SWR the said mechanism may be actuated
An extension member 29 is formed integral with head
each time a printing operation is e?ected on the web
26 and projects downwardly below the bed plate 3 be 65 by the printing head 26, after every second, every third
tween two switches S1, S2. The switches are of the type
or any other selected number of imprinting operations.
wherein when the plunger 30 is moved inwardly it rides
The preselector switch illustrated in FIG. 7 is designed
over a switch actuating arm but does not operate it to
for preselecting the severing operations after each, every
close the switch, but when the‘plunger 30 is returned 70 second or every third imprinting operation and as shown
by the spring 31 to its outward position as indicated in
the rotor is in position for e?iecting a severing operation
FIG. 3, the plunger operates the switch actuating arm
after each imprinting operation.
and the switch is momentarily closed to transmit an
The operation of the apparatus with particular refer
electrical impulse to a connected circuit as will be de
scribed hereinafter.
ence to the electrical circuit diagram will now be de
scribed.
3,031,952
in!
0
6
relay 6R2 which makes the latching contacts k-and the.
heavy duty contacts '1 and completes a circuit through
.When the apparatus is being used the main switch MS
is closed to close the supply circuit to the motor M
switch it to the solendoid 6R3. This solenoid is con
nected with the link 18a and on being energised it draws
the blade holder 14 downwardly to e?ect a severing 'op
which then runs continuously.
Assuming that the printing head 26 has just completed
an imprinting operation on a selected area of a continu
eration to cut oil the leading form length. As the blade
ous web of stationery, as the head rises it operates the
11 moves downwardly and before it engages the web, a
switch S1 which transmits an electrical impulse to ener
member mounted on the side edges of the holder 14 en
gise the relay OR which separates contacts A and makes
gage the rollers 24 to e?ect the downward movement of
contacts B, C, D. The separation of contacts A opens
the circuit of the brake relay BR and the solenoid BS 10 the clamping plates 19 towards the ?xed clamping plates
16 so that the web will be e?ectively clamped while it is
is de-energised to release the brake and the change over
being severed.
contacts a are disengaged from contact b and engaged
When the web is severed, means on the link 18”- or a
with contact c, i.e. they assume the position shown in
part movable‘ downwardly therewith operates a switch
the portion of the circuit diagram at the top of FIG. 7.
6R4 to open the circuit to relays GR1 and GR2 thereby
releasing the latching contacts k and the contacts b to
break the circuit to the solenoid GM3. The switch S2 is
As the contacts B are closed a circuit is made to the ‘
clutch relay CR which e?ects the engagement of latching
contacts a’, e the latter contacts being closed a short
only momentarily closed by the printing head so the cir
time after contacts d.
The contacts B are only made momentarily but a cir
cuit to relay CR is now provided through the latching
contacts d, e and the relay CR energises the solenoid
to engage the clutch.
cuit to the solenoid GR3 will now be opened and re
mains so until the switch S2 is closed on the next down
ward movement of the printing head.
If it is desired to effect three printing operations on
the web before a severing operation, for example to effect
The motor is now able to drive
the feed roller 4 to feed the continuous stationary over
an imprint on each of three form lengths and then sever
the bed plate 3 and the feed table 2. The purpose of
providing a short delay before the latching contacts e 25 these from the web, the rotor SWR of the selector switch
SW will be rotated to position its respective arms on con
are made is to allow time for the head 26 to be lifted
tacts SW3 of the four segments.
clear of the web before the clutch is engaged and the
Assuming rotor arm S3 has one arm on contact 48
web starts to move.
As shown in FIG. 2 a series of metal brushes 28 are
of switch S and that the printing head has just completed
a metal plate 2‘1 underlying the stationery and'which
contact with the plate ‘2d through the hole in‘ the web
adjustably mounted on a metal bar 2'’ extending longi 30 an imprint on the ?rst of the three form lengths of the
web to receive an imprint, as the head rises it will close
tudinally over the feed table 3. When the stationery
switch S1 and the sequence of operations will be carried
has been fed a distance to position the next area in printing
out as previously described, the brake being released by
position beneath the head 26 a hole 28 which is provided
opening contacts A, the clutch engaged by closing con
in each form length of the web w is aligned with the
?rst brush and the latter is able to make contact with 35 tacts B and the web fed until the ?rst brush 2*‘ makes
when the web has been fed to position the next form
is connected to the relay BR so that when the brush
length in imprinting position, the clutch then being dis
engaged and the brake applied. Also the solenoid USW
makes contact with the plate, the relay BR is operated
and the change overv contacts a moved from contact c
to contact I) to open the clutch relay circuit. Relay BR 40 will have been energised to move rotor S3 from contact
also elfects the engagement of latching contacts 1‘ and
energises the solenoid BS to apply the brake immediately
after the clutch is disengaged. The speed of feed of
the stationery web is such that the hole 2° is moved
48 to contact number 1.
'
‘ As the head 26'starts to move downwardly to e?fect
, a second imprint on the web it closes switch S2. As
however contact number 1 is not electrically connected
beyond the brush 2*‘ before the feed is halted so that 45 to any of the contacts SW3 there is no circuit to GR2
and the solenoid GR3 will not be energised and no sever
contact between the brush and plate 2a is broken. The
ing operation will be e?ected.
circuit to relay BR is however held closed by the latch
As the head moves upwardly again the switch S1 is
ing contacts f.
again operated and the cycle of operation is repeated, the
The closing of the contacts C transmits an impulse
to the relay U/S which makes the latching contacts g 50 web being fed ‘to present the‘third form length beneath
the head 26 and the rotor S3 being moved on to the con
and the heavy duty contacts h and a circuit is com
tact number 2 of switch S. As the head descends to
pleted to the solenoid USW which is energised to eifect
a step like rotation of the rotor arm S3 of switch S by
means of a pawl and ratchet or other suitable device so
that the rotor arm moves from one of the ?xed contacts 55
of the switch S‘ to the next.
As the solenoid USW is
eifect the third imprint the switch S2 is closed but as the
contact number 2 has no electrical connection with any
of the contacts SW3 the solenoid GR3 is still not oper
ated.
'
When however the head next closes the switch S1 the
actuated it opens the switch U/S1 thereby opening the
rotor S3 will be moved to engage contact number 3 and
circuit to relay U/S and releasing the contacts h which
accordingly as the head descends and closes switch S2, a
actuate the solenoid USW thereby opening the circuit
to the solenoid USW and relay U/S and releasing the 60 circuit will be completed through the rotor arm S3 con
tact number 3 to the segments SW3 and thence through
latching contacts g, h.
The closing of contacts D completes a circuit to relay
GR1 which closes the latching contacts 1' and applies a
potential to the lower. side (as viewed in FIG. 7) of the
switch S2. This prepares a circuit for effecting the sever
ing of a form length, along a transverse line which will
have been correctly aligned with the blade 11 when the
feed is halted.
,
As the printing head 26 starts to descend to carry out
the rotor SWR to the relay 6R2 so that the solenoid GR3
will be energised to operate down the blade 11 to sever
the web along a transverse line which will now be cor
rectly aligned therewith. The web will be clamped, as
previously described, during the severing operation.
The cycle of operation is continued and the web severed
after every third imprinting operation. It will be noted
that an electrical connection is provided to the contacts
SW3 of segments SWb and SWc when the rotor S3 is on
the next imprinting operation it closes the switch 5“.
70 the contact number 6 and multiples‘ of six, excepting
As shown the rotor SWR of the selector switch SW
where the number is also a multiple of twelve. ‘In the
is positioned for effecting a severing operation after each
latter case the circuit is completed directly through the
printing operation and accordingly when switch, S2 is
rotor SWR independently of the switch S.
closed an impulse is transmitted to contacts SW1 of seg
If it is desired to sever the web after completing every
ments SWa to SW0 and through the rotor arm SWR to 75
7
3,031,952
second imprinting operation the rotor SWR is moved to
8
the machine according to the length of the form lengths
constituting the continuous stationery, so that the lines
position its respective arms on contacts SW2 of the seg
ments and it will be noted that one of the arms engages
of transverse perforations can be correctly aligned with
contact SW2 of segment SWc which is connected with
the web severing mechanism.
contact number six of switch S and multiplies of that
We claim:
.
number except where it is also a multiple of twelve.
1. Apparatus for feeding a web of continuous stationery
The cycle of operation will be as already described
consisting of a series of connected form lengths to a print
except that the circuit to the solenoid GR3 to operate the
ing machine having a printing head, each form length
cutter will be completed after every second downward
having an aperture, said apparatus including a bed plate,
movement of the printing head.
10 electrically actuated means for-feeding said web over said
It will be understood that by varying the number and
bed plate, electrically actuated means for arresting the
arrangement of the contacts of the switch S and the
feed movement, adjustable means for controlling the
arrangement of the connections to the segment of the
actuation of said arresting means, said adjustable means
selector switch SW and by arranging to step forward
comprising ?xed electrical contact means on said bed
switch S, when the required number of imprints is not 15 plate and co-operating contact means supported above
digitally divisible into 48, representing the number of con
tacts on switch S, the cutter could be made to operate
after 4, 5, 7 or any other desired number of imprinting
operations.
‘Once the preselector switch is positioned according to
the desired number of imprinting operations to be effected ..
before the cutter is operated the apparatus can be con
said bed plate for adjustment longitudinally thereof so
as to engage said ?xed contact through said aperture in
the form length to effect the energization of said arrest
ing means, electrically actuated web severing means
20 mounted at the end of said bed plate, an electrically actu
ated device for operating said web severing means, means
for producing an electrical impulse for transmission to
tinously operated and the cutter will be automatically
said device on the completion of each feeding and im
operated to cut the web each time the selected number
printing of a form length, a selector switch for control
of imprinting operations have been made.
25 ling the transmission of said impulses to said device, said
The clutch and brake may comprise a clutch plate
selector switch being manually adjustable to selected po
mounted on the drive shaft of the motor M so as to be
rotatable therewith but slidable axially thereof by inter
engaging splines the clutch plate carrying a piece. A
' sitions such that an impulse is transmitted to said device
after a selected number of feeding and imprinting op
erations, and electrically actuated means operable on the
co-operating clutch plate is mounted on a shaft co-axial 30 operation of the web severing means to initiate the actu
with the motor drive shaft carrying the ?rst of the gears
ation of the web feeding means to start another cycle of
of the gear train. The latter clutch plate carries a pole
operations.
piece connected in circuit with the solenoid CS and when
2. Apparatus for feeding a continuous web of sta
the latter is energised the last mentioned pole piece will
tionery consisting of a series of connected form lengths
attract the ?rst mentioned one and the clutch plate on the 35 to a printing machine having a reciprocably mounted
motor shaft will be moved axially of the shaft into cou
printing head operable to print on said form lengths,
pling engagement with the co-operating clutch plate to
drive the latter and the feed roller 4%.
The brake may comprise a ?xed brake disc carrying
a pole piece and located in co-axial relation to the said
co-axial shaft and having a bore in which the shaft freely
rotates. A co-operating brake disc carrying an arma
ture is mounted on the co-axial shaft so as to be rotated
said apparatus comprising electrically actuated means for
feeding the web, electrically actuated means for arresting
the feed movement, adjustable means for controlling the
actuation of said arresting means when a pre-determined
feed movement has been imparted to the web to position
a pre-selected area of a form length in position under
the printing head of said machine, electrically actuated
therewith but also capable of axial sliding movement
means for severing said web, manually adjustable pre
along the shaft. The pole piece on the ?xed brake disc 45 setting means for controlling the operation of the said
is associated with the solenoid BS such that when this is
web severing means to cut off the imprinted portion of
energised the armature on the rotatable brake disc will
the web each time a pre-determined number of web feed
be attracted and the slidable brake disc drawn into on
ing and imprinting operations have been carried out on
gagement with the fixed disc and the frictional engage
the web, and electrically actuated means operable on the
ment between them will apply a braking action to the 50 operation of the web severing means to initiate the actu
said co-axial shaft and so stop the drive to the feed
ation of the web feeding means to start another cycle of
roller 48.
operations.
When the continuous web is ?rst fed into the unit by
3. Apparatus for feeding a continuous web of sta
hand before the apparatus is started up it will be neces
tionery consisting of a series of connected form lengths
sary to correctly align the form lengths and to facilitate 55 to a printing machine having a reciprocably mounted
this the severing mechanism is disconnected and an indi
printing head operable to print on said form lengths,
cator lamp substituted. This is effected by moving the
said apparatus comprising electrically actuated means for
switch arm n from contact 111 to contact 112 so that each
feeding the web, electrically actuated means for arresting
time a severing operation would have been initiated the
the feed movement, adjustable means for controlling the
indicator lamp p will light up.
60 actuation of said arresting means when a pre-determined
As described with reference to the accompanying draw
feed movement has been imparted to the web to posi
ings, three sensing brushes 2a are provided, and the hole
tion a pro-selected area of a form length in position under
2° which is provided in each form length will be aligned
the printing head of said machine, electrically actuated
with each brush in turn to arrest the feeding of the web
means for severing said web, an electrically actuated de—
when each of the three areas to receive an imprint is in 65 vice for operating said web severing means, means for
position beneath the printing head. The longitudinal
producing an electrical impulse for transmission to said
spacing of the sensing brushes may be varied according
device on the completion of each feeding and printing
to the location of the areas to be imprinted by sliding
of a form length, a selector switch for controlling the
the brushes along the bar 2').
transmission of said impulses to said device, said selector
It will be understood that the number of sensing 70 switch being manually adjustableto selected positions
brushes provided will correspond to the number of im
such that an impulse is transmitted to said device after a
prints to be made on each form length.
selected number of feeding and printing operations, and
The unit may be adapted to be detachably connected
electrically actuated means operable on the operation of
to the side of the addressing machine by adjustable means
the web severing means to initiate the actuation of the
to enable the unit to be moved towards or away from 75 web feeding means to start another cycle of operations.
3,031,952
4. Apparatus for feeding a continuous web of sta
tionery consisting of a series of connected form lengths
to a printing machine having a reciprocably mounted
printing head operable to print on said form lengths, said
apparatus comprising electrically actuated means for
feeding the web, electrically actuated means for arrest
ing the feed movement, adjustable means for control
1O
ing action to said web feed means, an imprinting device,
means for operating said device to effect an imprint on
the web and means for severing a portion of the web
after it has been imprinted, an electrically actuated clutch
for coupling said motor to said feed means for feed
ing the web, means operable by the imprinting means
when an imprint has been effected to energize said clutch
to couple the said motor to said web means, electrically
ling the actuation of said arresting means when a pre
actuated control means for deenergizing said clutch and
determined feed movement has been imparted to the
web to position a pre-selected area of a form length in 10 energizing said brake means, adjustable means for ef
fecting the energization of ‘said control means when a
position under the printing head of said machine, elec
feed movement of pre-selected length has been effected
trically actuated means for severing said web, an elec
to position a selected area of a form length in imprinting
trically actuated device connected with said web sever
position, means for operating said imprinting device to
ing means, a selector switch connected in circuit with
said device, means for producing an electrical impulse 15 print on said selected area of the web, manually adjust
able means for controlling the operation of the said
for transmission to said selector switch on the operation
of said printing head, a selector arm for said selector , Web severing means to effect a severing operation when
a pre-determined number of imprinting operations has
switch movable to selected positions to control the trans
been
carried out on the web, and electrically actuated
mission of said impulses through said selector switch
to energize said device, such that an impulse is trans 20 means operable on the operation of the web severing
means to initiate the actuation of the web feeding means
mitted to energize said device after the completion of a
to start another cycle of operations.
predetermined number of feeding and printing opera
tions, and electrically actuated means operable on the
References Cited in the ?le of this patent
operation of the web severing means to initiate the
25
actuation of the web feeding means to start another
UNITED STATES PATENTS
cycle of operations.
5. Apparatus for operating on a web of continuous
stationery consisting of a series of connected form lengths
automatically to carry out a series of operational cycles
in each of which the web is fed, imprinted and the im 30
printed portion severed from the remainder of the web
said apparatus comprising web feeding means, a continu
ously running electric motor for driving said web feed
means, electrically controlled means for applying a brak
1,976,775
2,239,060
Frederick ____________ __ Oct. 16, 1934
Sloan ______________ __ Apr. 22, 1941
2,283,804
2,290,871
2,570,306
2,708,873
Grant et a1 ___________ __ May 19,
Freedman __________ .._ July 28,
Battersby _____________ __ Oct. 9,
Braun _____________ __ May 24,
Kuhl ________________ __ June 5,
Marsh et a1. _________ _._ July 17,
2,748,865
2,754,751
1942
1942
1951
1955
1956
1956
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 024 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа