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Патент USA US2130600

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Sept. 20, 1938.
'
‘
w. RITZERFELD
‘ -
2,130,600
DUPLICATING APPARAgEUs
Original Filed Oct. '8, 1935
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2 Sheets-Sheet l
.
INYENTOQ
87
QQM
A TTOR/VEY
Sept. 20, 1938.‘
v
'
_w. RITZERFELD v
DUIV’LICATING APPARATUS
Original Filed Oct. 8’, ‘1935
_
I,
2,130,690
"
2 Sheets-Sheet 2
I”
BY
Wm
krmkwsy
Patented Sept. 20, 1938
2,130,600 * .
UNITED STATES PATENT orrice
7
2,130,600
‘DUPLICATING APPARATUS
Wilhelm Ritzerfeld, Berlin, eel-many
Application October a, 1935, Serial No. ‘44,076.
Renewed September 4, 1937. In Germany 00tober 8, 1934
9 Claims. (Cl. 101—132)
This sliding member ‘6 carries a rotatable and
The present invention relates to duplicatingv
apparatus, and -more particularly. to a new pivotahle counterpressure roller 2 of single line
width, furthermore a moistening device, consist
method of working and a special form of em
ing of the reservoir Ill, the moistener 9 with the
b'odiment of] a machine for re-printing book
5 keeping entries or the like, comprising one or
'
more lines to be copied from an original sheet or
protruding felt II and a feeding table 8 for feed- 5
ing. the sheets or cards to be printed upon to- .
printing plate furnished with reverse characters, ,wards the bight of the drum I and the counter
‘ signs on to sheets, cards etc., which have pre
viously been covered ‘with a very thin ?lm of a
10 volatile solvent, as spirit or the like.
‘ In the hitherto known manifolding machines
for line by line or sectional re-printing only a
copying step-by-step of the single lines from an
original, which was attached to a printing drum
15 with the lines of matter arranged vertically to
the drum axis, was performed in such a way, that
after the re-p‘rinting of one line of the original
pressure roller 2. The feeding table 8 is" at
tached to the sliding member 6 by a holding.
member‘t" the length of which is adjustable in 10
such a manner that sheets of any desired size
may be fed to the apparatus. At the lower part
of the sliding member 6 a rack is rigidly attached
parallel to the aforesaid axis 6'.
To the left said member 6 is slidable by a ten- 15 '
sion means, which is coiled up in an anticlockwise
direction by a spring provided in the box 5!. To
sheet had taken place the next line had to be ' the right said member 6 is movable by working
copied.
.
20
The most important feature of the present in
'
vention is the method of re-printing single lines
a crank 53 turning the axis 52, which acts upon
the ratchet wheel 54, preferably secured inv a box. 20
At one sidewall I5, on brackets, not shown in ‘
step by step or in any desired succession. This the drawings, two bell crank levers 51 and 58
is necessary for printing material lists, salary bags ' are hor’zontally pivoting around 55 and 56. Two
or the like. A ‘further object of the invention is connecting rods- 59 and 60 directed to the left
25 the device permitting to re-print any desired line in they embodiment of the invention as shown in .25
at will of an originalor printing plate attached the drawings, are attached to those arms of the
‘to the’ printing drum with the lines of matter bell crank levers 51 and 58 which are parallel
or nearly parallel to the sidewall I5. vIn ti, piv
arranged vertically to the drum axis.
otable around 63, the pawl 62 is provided. One
This device vconsists of an arrangement of an
,arm
of this pawl 62 is elongated and carries, 80
30 tomatically or manually driven elements for lat
eral displacement of a special member, carrying
a counterpressure roller, 9. moistening device,
both of line width and a feeding. table. This
member is moved sideways‘ on an axis parallel to
35 the axis of the printing drum step by step or at
will in any desired succession of. lines. ‘\
Further features of the invention may be seen
from the drawings which show. diagrammatically
. one embodiment of the invention and in which
40 the same‘ reference characters have been used in
all the views toindicate corresponding parts.
‘ Fig. 1 is a side view
-.
Fig. 2 is a front elevation
Fig. 3 is a detail of the device according to the
45 invention.
_
Between the sidewalls I5 the printing drum I
pivoting in 64, the second pawl 65, to which in 66
the connecting rod 80 is attached, the other end
of said connecting‘rod 60 being joined to lever
58. The position of the two ‘pawls 62 and 65 is
provided in such a manner, that they are capable 35
of engaging the teeth of rack 50. The way of
these pawls 62 and 65 is determined and limited
by springs 16 and 11. The free arms of the bell
crank levers 51 and 58 are in touch with they
arms of the key-levers 61 and 68 pivoting around 40
the axis 69.
For automatic‘lateral displacement of the slid
ing member 6 a cam 10 attached at the front side
of the printing drum‘ I strikes against one arm '
of a bell crank lever 1| pivoting around 12,,to 45
which a'connecting rod 13 is joined, the other end _
is provided. Tosaid drum I an original sheet . of which is connected to lever 51. A lever 15
or printing plate is attached. The sheet to be . pivoting around '14 enables the setting out of
printed upon-the .gcopy sheet-is to be fed be
50 tween said drum ['5 and a counterpressure roller
2, which is pressed in any desired manner against
said drum l and which thus eifectuates the copy
ing from the original sheet. On the axis 6' par-.
allel to the axis of the printing drum I a mem
55 her 6 is slidable inboth directions.
work of the aforesaid device.
The way of operation of the contrivance is 50
the following: If the key lever 68 is pulled down
wards the bell crank lever 51 is- pivoted in an
anticlockwise direction and pushes the connect
ing rod ‘59 to the right thus engaging pawl 62
with rack 50. In the meantime the pawl 65 is 55
' 2
2, 1 80,600
disengagedv by this movement from rack 50 and - ing roller, a moistening means, a counterpressure
the sliding member 8, attached to said rack, and roller and a feeding table‘ associated with said
all the parts attached to it, as counterpressure sliding member and adapted to co-operate with
roller, reservoir for the solvent, the moistener .said printing roller to selectively copy a portion
with the protruding felt,‘ and the feeding ‘table of said original onto a copy sheet in accordance
travel one step of the width of a line to the
left by means of the coil spring in the box 5!.
If several lines are to be left out the key lever
with the position of said sliding member, a
spring-powered rack connected to said sliding
member and extending in the direction of move
61 is pulled downwards. By its action the bell ment thereof, a pair of pawls adapted to be actu
10 crank lever“ 58 is pivoted in an anticlockwise, ated to alternately engage and disengage a tooth
direction, the connecting rod is “pushed to the of said rack, means for alternately actuating said
left and the pawl 65 is disengaged from rack 50 pawls to cause step by step displacement of said
whilst pawl 62 remains out of contact with said sliding member, and means for simultaneously
rack 50. Now the sliding member 6 travels by disengaging both of said pawls to cause contin
16 tension of the coil spring in box 5| to .theleft uous displacement of said sliding member.
15
until key lever 61 is. given free,‘ whereupon the
4. In a duplicating machine printing onto clear
pawl 85 engages again with rack 50.
~
sheets previously moistened with a readily vola
The device can be actuated manually, elec
tilizing solvent, the combination comprising a ro
trically or pneumatically. The position of the tatable printing roller bearing a copyable mirror
20 single elements of said device may be adapted script original constituted of a plurality of lines
to any desired requirements.
arranged in the direction of rotation of said roller,
' What I claim as new and desire to secure by a sliding member adapted to be displaced in a
Letters Patent is:
direction parallel to the axis of said printing
1. In a duplicating machine printing onto clear roller, a moistening means and. a counterpressure
sheets previously moistened with a readily vola
roller of single line width and a feeding table ad
tilizing solvent, the combination comprising a justably mounted on said sliding member and 25
rotatable printing roller bearing a copyable mir
adapted to co-operate with said printing roller to
ror-script original constituted of a plurality of selectively copy one line of said original onto a
lines arranged in the direction of rotation of said copy sheet in accordance with the position of
roller, a sliding member adapted to be displaced said sliding member, a powered rack connected to 30
in a direction parallel to the axis of said printing said sliding member and extending in the direc
roller, a moistening means, a counterpressure tion of movement thereof, a pivoted pawl engag
roller and a feeding table associated with said ing a tooth of said rack, a second pawl pivotally
sliding member and‘ adapted to co-operate with mounted on said ?rst pawl and adapted to en
» said printing roller to selectively copy a portion
gageanother vtooth of said rack, and means for 35
of said original onto a copy sheet in accordance selectively disengaging said pawls to cause step
with the position of said sliding member, a pow
by step and continuous displacement 01' said slid
ered. rack connected to said sliding member, ing member.
_
means for engaging said rack to prevent dis
5. In a duplicating machine having a printing
v. placements thereof, and means for moving said roller bearing a copyable mirror-script original,
engaging means into an inoperative position to the improvement comprising a displaceable mem
disengage said rack and to permit said sliding ber adapted tobe moved in-a direction parallel
member to be displaced into a position corre
to the axis of said printing roller, feeding, coun
sponding to the length of time during which said terpressure and moistening means associated with
rack is disengaged.
said member and adapted to co-operate with said
2. In a duplicating machine printing onto clear roller to print a portion of said original onto a
sheets previously moistened with a readily vola
copy sheet according to the position of said dis
tilizing solvent, the combination comprising a placeable member, means for moving said dis
rotatable printing roller bearing a copyable mir
placeable member, means for locking said dis
v,ror-script original constituted of a plurality of placeable member against the effect of said mov
lines- arranged in the direction of rotation of ing means, and means for making said locking 50
said roller, a slidingmember adapted to be dis
means inoperative for a limited time to cause dis
placed in a direction parallel to the axis of said placement of said member by said moving means.
printing roller, a moistening means, a counter
6. In a duplicating machine printing onto clear
65 ,Ipressure roller and a feeding table associated with sheets previously moistened with a readily vola
said sliding member and adapted to co-operate tilizing solvent, the combination comprising a ro
with said printing roller to selectively copy a tatable printing roller adapted to hold a master '
portion of said original onto a_copy sheet in sheet bearing lines in copyable mirror-script ar
accordance with the position of said sliding mem
ranged in the direction of rotation ofsaid roller,
60 ber, a spring-powered rack connected to said pressure means for pressing a portion of a‘clear
sliding member and extending in the direction sheet against said master sheet, means for mois
of movement thereof, a pair of pawls adapted tening said clear sheets, said pressure and mois
to alternately engage the teeth of said rack to tening means being adapted to be displaced in a
retain said sliding member, and means for selec
direction parallel to the axis of said printing roll
65
tively disengaging said pawls for causing dis
er, means for displacing said pressure and mois
_ placements of said sliding member by any desired tening means, means for‘locking said pressure 65
amount.
and moistening means against the effect of said
3. In a duplicating machine printing onto clear displacing means, automatic releasing means in
sheets previously moistened with a readily vola
cluding a cam on said printing roller and a lever
70 tilizing' solvent, the combination comprising a system for making said locking means inoperative
rotatable printing roller bearing a copyable mir
for a_ limited time during each rotation of said
ror-script original constituted of a plurality of printing roller, means for displacing said pres
lines arranged in the direction of rotation of said .sure and moistening means, means for locking
roller, a sliding member adapted to be displaced said pressure and moistening means against the
75 , in a direction parallel to the axis of said. print effect of said displacing means, automatic releas- 75
3
2,180,600
I ing means including a cam on said printing roller
and a lever system for making said locking means
inoperative for a limited time during each rota
tion of said printing roller, manually operable
releasing means including a lever system for
making said locking means inoperative, and
means for selectively actuating said' automatic
and said manually operable releasing means for
causing displacement of said pressure and mois_—
10
tening means.
"
'
7. In a duplicating machine printing onto clear
sheet, means for moistening said clear sheet, said
pressure and said moistening means being adapt
ed to be displaced in a direction parallel to the
axis of said printing roller, means for displacing
said pressure and moistening means, means ‘for
locking said pressure and moistening means
against the effect of said displacing means, auto
matic releasing means for making said locking
means inoperative for a limited time during‘each
rotation of said printing roller, manually oper 1O
able releasing means for making said locking
sheets previously moistened with a readily vola- > means inoperative, and means for selectively ac
tuating said automatic and said manually oper
' tilizing solvent, the combination comprising a ro
tatable printing roller adapted to hold a master
16 sheet bearing lines in copyable mirror-script ar
able releasing means for causing line by line and
step by stepdisplacement of said pressure means
a feeding table for feeding clear sheets to said
printing roller, pressure means for pressing a
portion 01.’ a clear sheet'against said master sheet,
20 means for moistening said clear sheets, said pres
sure and said moistening means being adapted to
be displaced in a direction parallel to the axis
of said printing roller, means for displacing said
9. In a duplicating machine printing onto
clear sheets previously moistened with a readily
ranged in the direction of rotation of said roller, ' and of said moistening means.
pressure and moistening means, means for lock
25 ing said pressure and moistening means against
the effect of said displacing means, automatic re
a leasing means for making said locking means in
operative for a limited time during each rota
tion of said printing roller, manually operable
30 releasing means for making said locking means
inoperative, and means for selectively actuating
said automatic and said manually operable re
i
‘
volatilizing solvent, the combination comprising
a rotatable printing roller adapted to hold a mas
ter sheet bearing lines in copyable mirror-script
arranged in the direction of rotation of said roller,
a sliding member adapted to be displaced in a
direction parallel to the axis of said printing
roller, moistening means and counterpressure
means associated with said sliding member for
‘moistening a portion of a clear sheet and to press
said portion against the printing roller, a feed
ing table for introducing clear sheets between
said printing roller and said counterpressure 30
means, means for displacing said sliding member,
means for locking said sliding member against
leasing means for causing displacement of said __the e?ect of said displacing means, automatic
releasing means operated by said printing roller
pressure and moistening means.
8. In a duplicating machine printing onto clear for making said locking means inoperative for 35
a limited time during each rotation of saidkprint
sheets previously moistened with a readily vola
ing roller, manually operable releasing means for
tilizing solvent, the combination comprising a ro
tatable printing roller adapted to hold a master making said locking means inoperative, and
means for selectively actuating said automatic
sheet bearing lines in copyable mirror-script ar
ranged in the direction of rotation of said roller, and said manually operable releasing means for 40
40 a feeding table for feeding clear sheets to said causing line by line and step by step displace
printing roller, pressure means for pressing a ' ment of said sliding member.
RI'I‘ZERFELD.
portion or said clear sheet against said master
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