Improvements in Means for Wiping or Removing Superfluous Ink from the Dies of Printing Presses.
Year: 1899

page_text: Date of Application, 20th July, 1899
Complete Specification Left, 19th May, 1900-Accepted, 20th July, 1900
PROVISIONAL SPECIFICATION.
Improvements in Means for Wiping or Removing Superfluous Ink
from the Dies of Printing Presses.
I, JOSEPII YARDLEY JOHNSTON, of 22, Bride Lane, in the City of London, Manu
facturer of Steel Die and Plate Presses, do hereby declare the nature of this inven
tion to be as follows:-
This invention has reference to improvements in means for wiping or removing
superfluous ink from the dies of printing presses whereby this operation may be
effected more efficiently than has heretofore been usual and my present improve-
ments may be employed in printing presses of various kinds. According thereto
the die is wiped by means of a strip of suitable paper stretched over a compara-
tively soft and elastic pad, carried on a table which is adapted to be raised at the
required time in such a manner as to press the paper into close contact with the
die and so force the ink or other substance thoroughly into the lines thereon, and
while the surfaces are thus pressed together, the die moves relatively to the paper
with a sweeping and twisting motion which removes all superfluous ink &c.
therefrom, leaving the said die in perfect condition for giving the impression.
The aforesaid table is supported on springs in such a manner that it automatically
adapts itself to any irregularity or want of parallelism in the form of the die.
After the die has been wiped, the table is lowered and the strip of paper auto-
matically moved a sufficient distance to expose a clean surface for the next wipe.
The wiping apparatus is contained in a suitably shaped and supported frame,
carried by a suitable part of the press, and capable of a small amount of vertical
motion, its weight being borne by springs, counter weights or other suitable
devices.
The table aforesaid consists of a platen having a central boss on its underside,
drilled and tapped to receive a screw stud. This stud is passed upwards through
a conical hole in a boss in the centre of the top of the frame, and has a head
abutting against the underside of the said hole. It forms the connection between
the said top and platen and affords a means of adjusting the distance between
them. It is supported and prevented from turning after adjustment, by a pin
passed through a slot in its head and the aforesaid central boss. Screwed into a
tapped boss in each corner of the top of the frame is a stud having a worm wheel
on its lower end.
Four horizontal spindles are journalled parallel with each other in the frame
and have worms on their inner ends engaging respectively with the said four
worm wheels. Seated in recesses in bosses on the underside of the platen are four
helical springs their ends bearing on loose discs resting on the upper ends of the
worm wheel studs.
The worm spindles are provided on their outer ends with milled heads and by
rotating the said spindles the compression of the springs on which the platen rests
can be varied as required to adjust the position of the platen to any irregularity
or want of truth in the die surface, or to concentrate the pressure of wiping at any
particular part of the die. The springs form an elastic support to the platen,

page_text: enabling it to move about the central screw stud as a centre and automaticall
adapt itself to the die face.
Journalled in lugs under the front edge of the platen is an eccentric roller
having the end of one of its pivots formed square for convenience in rotating i
with a key. Under the back edge of the platen a slotted roller is similarly jour
nalled. It is provided at one end with a knob furnished with tommyholes, o
with a hexagon head to take a spanner, and at the other end with a nut to lock it
The pad before mentioned is composed of pieces of felt and cardboard laid on the
platen and covered by a piece of felt, one end of which is gripped between th
eccentric roller and the underside of the platen, the other end being inserted in
the slot in the roller at the other edge of same; the said roller is rotated till the
felt is strained tight, and then locked by the nut aforesaid at its end.
A loose plug is inserted in a cavity under each of the screw studs, on which, the
platen supporting springs rest, to form a stop, and the extent of downward motion
of the said studs can be adjusted by inserting plugs of varying lengths.
The aforesaid worm spindles are preferably so arranged that they all rotate in
the same direction for raising the studs, and in the reverse direction for lowering
them.
The wiping paper consists of a long strip wound into a roll which is carried on
a spindle, journalled in forks in the ends of arms extending from the side plates
of the frame of the wiping apparatus. The said spindle carries movable discs
or flanges furnished with set screws, or other suitable devices to fix them on the
spindle to suit varying widths of paper. Spikes or pointed projections are pro-
vided on the inner sides of the discs which enter and grip conical wooden sleeves
surrounding the spindle and adapted to be forced into the ends of the paper roll,
so that the said spindle is held firmly in the roll.
It is retained in the forks on the ends of the arms by vertical bars swinging on
set screws so that by turning the said bars aside the spindle with the paper can
be instantly removed from or placed in its bearings. The said forks are pro-
vided with blocks which can be pressed by screws in the bars against the journals
of spindle so that any desired degree of friction can be put on the said spindle.
The paper passes upwards, over the pad on the platen, and then down to a
waste paper roller, on which it is wound up as used. This waste paper roller is
made in two approximately semi-cylindrical parts hinged to each other on one
side but with a gap left between the edges on the other side, which edges are con-
nected by one or two hinged pieces secured by screws, or other suitable devices,
so that they can be readily disconnected when required. The waste paper roller
has a spindle carried in bushes journalled in holes in the side plates of the frame.
The inner ends of these bushes have flanges, in recesses in which are seated frie-
tion washers of vulcanised fibre or other suitable material, bearing against the
hub ends of the roller.
The spindle has a head at one end, bearing against the outer end of the corre-
sponding bush, and the bushes, which slide on feathers on the said spindle, are
forced against the ends of the hub of the roller by a nut screwed on the other end
of the spindle.
Therefore when the said spindle is rotated, the roller also rotates by the fric-
tional contact of the washers.
Journalled in the upper part of the frame of the wiping apparatus above the
waste paper roller, is a spindle having a feed roller secured thereon against which
the paper coming from the clean roller is pressed by a friction roll having grooves
formed on its surface which converge towards the middle of the roll and in which
are embedded strips of felt or other suitable material, to give the necessary grip
on the paper. The spindle ends of this friction roll are carried in bearings sliding
longitudinally in arms extending from the side plates of the frame and these
bearings are forced up by screws to give the necessary pressure.
If now the feed roller and the waste paper roller be simultaneously partially
rotated, it is evident that the paper will be drawn off the supply roll by the former

page_text: and drawn down over the pad on the platen by the latter and wound thereon.
Such partial rotation is effected as follows:-
Rotating loosely on the spindle of the feed roller against which the friction
roller presses the paper, is an arm and on one of the bushes of the waste paper
roller is a similar arm. These arms respectively carry pawls, which are kept in
contact with ratchet teeth on the said spindle and bush respectively by springs,
and they have spur teeth cut on their rear portions, so that they form partial spur
pinions which gear with teeth on a rack bar sliding vertically on studs. When
the said rack bar is raised the pawls slip over the ratchet teeth, but when it is
depressed the pawls engage with the said teeth and simultaneously rotate the feed
roll and the waste paper roller thus feeding the wiping paper forward. The
amount of feed necessarily varies with the size of the die employed, as the larger
the die, the greater the surface of paper used each time for wiping. Pivoted around
the boss on the side plate of the wiper frame in which the feed roller spindle
rotates, is a quadrant having a guard plate covering part of the teeth of the
ratchet wheel fixed thereto.
It is provided with a curved slot through which a set screw extends so that the
guard can be fixed in any required position, and the feed of the paper regulated
according to the number of ratchet teeth which are exposed to the action of the
pawl. The movement given to the waste paper roller spindle does not vary, being
always equal to the largest amount of paper feed; for shorter feeds, or for
increase in diameter as the paper accumulates on the roller, the friction washers
aforesaid, allow the roller to slip on its spindle, the pressure being regulated by
the nut on the end of said spindle to just permit such slip and yet insure the
roller taking up the waste paper and holding it taut on the wiping pad. To pre-
vent backlash or rotation in the wrong direction, one edge of the waste paper
roller is cut with ratchet teeth and two spring pawls or latches are seated in the
frame of the wiper to engage with the said teeth.
When the waste paper roller is full, the nut on its spindle is removed and the
spindle drawn out, when the roller with the paper thereon can be taken out of
the frame. The hinged pieces of the roller being then unfastened and turned
inwards, the roller collapses and can be drawn freely out of the roll of paper,
thus avoiding the waste of time involved in unwinding or cutting the paper to
remove it, as was necessary with the form of roller previously employed.
The wiping apparatus is lifted to press the paper against the die by the follow-
ing arrangement.
A lever, pivoted at its outer end, is provided with a semi-circular cavity on
its upper side at or about the centre in which the circular curved end of the boss
on the underside of the top of the frame seats. At the inner end of the lever is
a downwardly projecting part carrying a roller which extends over the upper
surface of a disc fixed on the vertical shaft of the die arm and into the path of a
cam piece formed on said disc which as it travels round comes under the roller
and so lifts the wiper pressing the paper into close contact with the die.
The inner end of the lever is guided between vertical jaws carried by the frame
of the press and when it has been raised as above described, a hook carried by
the lever and actuated by a spring slips over a bar upon the frame and holds the
wiper in the raised position in contact with the die. A sleeve fixed on the vertical
die arm shaft is furnished with a roller which at the right time, coming in con-
tact with the top of the hook pushes it off the bar and allows the wiper to drop,
the cam having meanwhile passed clear away from under the roller; and the
springs or contrivances before mentioned act as buffers to check the fall of the
apparatus.
As it is necessary to be able to regulate with great delicacy and precision the
height to which the wiper shall rise, to suit variations in the thickness of dies,
or of the wiping pad or to vary the pressure against the die according to its size
or the amount or nature of the work thereon, the following adjusting arrange-
ment is employed. The outer end of the lever raising the wiper works between

page_text: -
a shaft which
two vertical jaws and a pin passing horizontally through these jaws and a ver-
tical slot in the lever prevents endways motion of the lever but allows it to rise
or fall a certain amount. The under surface of the said end is inclined and
rests upon a fulcrum piece adapted to slide between jaws and which is drilled
and tapped to receive a screw rotating in bearings without end motion. On the
outer end of the said screw is a worm wheel and
carries a Worm engaging with the said worm wheel, extends to a
convenient part of the apparatus where it is provided with a hand
wheel. By rotating this hand wheel, the fulcrum piece can be very finely adjusted
in a horizontal direction and, by its co-operation with the inclined surface afore-
said, the end of the lever, and in consequence the wiping apparatus is raised or
lowered as required, the operation practically consisting in a change in the posi-
tion of the fulcrum.
This adjustment can be effected without stopping the working of the press.
At the top of the rack bar which operates the feed roll and the waste paper
roller are two antifriction rollers, though a single roller may be employed if pre-
ferred, and the underside of the cam disc which operates the just described lever
is furnished with another path arranged to operate upon the said rollers. At
the proper time this cam pushes down the rack bar and so causes the wiping paper
to be fed forward as before described.
The return stroke of the rack bar is given by a spring, and the extent of its
upward travel can be regulated by lock nuts on a screw extending from its lower
end and passing through a lug on the frame.
As it is sometimes required to feed the paper forward by hand, the said rack
bar is provided with a handle for that purpose.
Two arms are fixed to the side plates of the wiper frame on which a couple of
carriages connected rigidly together are adapted to slide. They carry a roller
covered with rubber, plush or other suitable material, and a pivoted scraper-
plate, the upper edge of which is caused by means of springs or weights to bear
against the roller. The paper is pressed against the roller by the said upper edge
of the scraper-plate and is drawn down between them by the action of the waste
paper roller. The ink flows down the said plate and is received in a can or suit-
able receptacle which is emptied at intervals into the ink reservoir. Other
scraping arrangements may be employed for instance a fixed scraper plate and
a paper guiding roller may be employed.
Apparatus according to this invention is suitable for use in a printing press
of the type described in the Specifications of former Letters Patent granted to
me No. 16704 of 1893 and No. 14664 of 1894 and in the Specification of another
application for Letters Patent by me and bearing even date herewith is described
the nature of my present invention as embodied in an improved construction and
arrangement of press for printing or embossing by means of female or intaglio
surfaces.
Improvements in Means for Wiping or Removing Superfluous Ink
from the Dies of Printing Presses.
I, JOSEPHI YARDLEY JOHNSTON, of 22, Bride Lane, in the City of London, Manu-
facturer of Steel Die and Plate Presses, do hereby declare the nature of this inven-

page_text: tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
-
This invention has reference to improvements in means for wiping or removing
superfluous ink from the dies of printing presses whereby this operation may be
effected more efficiently than has heretofore been usual and my present improve-
ments may be employed in printing presses of various kinds.
The accompanying drawings, illustrate wiping apparatus embodying my im-
provements and designed for use in a press of the kind in which a die-carrying
arm revolving in a horizontal plane, first passes over an apparatus which inks
the die, then over the apparatus illustrated and is then brought to rest and locked
over a device adapted to resist the impression blow, which is then given by the
descent of a screw plunger on to the top of the die. Printing presses of this type
are described in the Specifications of former Letters Patent granted to me No. 1670
of 1893 and No. 14664 of 1894, and one arrangement of apparatus according to
this invention and suitable for use in such a press is described in the Specifica-
tion of another application for Letters Patent by me bearing even date herewith
and numbered 14994, in which specification is described the nature of my present
invention as embodied in an improved construction and arrangement of press for
printing or embossing by means of female or intaglio surfaces.
Figs. 1 and 2 of the accompanying drawings are respectively a front elevation
and side elevation of the apparatus for automatically wiping the die after the ink-
ing operation.
Fig. 3 is a sectional plan of a press comprising such wiping apparatus ;
Figs. 4, 5, 6, 7 and 8 are detail views to an enlarged scale of parts of the said
wiping apparatus.
Figs. 9 and 10 are respectively a front elevation and an end elevation of a col-
lapsible waste paper wheel forming part of said wiping apparatus, the wheel
being shown expanded.
Fig. 11 is a similar view to Fig. 10 showing the said wheel collapsed.
Fig. 12 is a sectional detail view of the said wheel spindle and its driving gear.
Fig. 13 is a detail view of a device for scraping the ink off the waste paper,
said device being a modified form of that shown in Figs. 1 and 2.
Figs. 14 to 17 are detail views.hereinafter referred to.
a is the die arm of the press, the frame of which is marked b; the die arm is
intermittently revolved so that it first passes over the inking apparatus of the
press and then brings the die cover, but not in contact with, a strip d of hard
smooth paper or other suitable wiping material (hereinafter called paper) stretched
over a. comparatively soft and elastic pad carried on a platen or table e (herein-
after called a table). The entire wiping apparatus is carried by à frame f
resting on a spring which may be secured to a part of the press frame, through
a hole in which a stud on the bottom of the frame f slides.
g
The table e has on its underside a central boss i, (see Figs. 6 and 7) into which
screws a stud that extends through a hole in the top of the frame f and has a
rounded head located within a tubular boss on the underside of the frame top;
the rounded head of the screw abuts against a correspondingly formed shoulder
within the boss k and the screw forms an adjustable connection between the frame
and the table. The screw is prevented from turning after adjustment by a
pin passed through a slot in its head and through the wall of the boss k. The
hole in the top of the frame f tapers or decreases in diameter towards the lower
part, as shown, so that the table can oscillate without being liable to jam.
Screwed through a tapped boss m near each corner of the frame top is a stud n
(Fig. 8) having a worm wheel o gearing with one of four parallel worm spindles p
with conveniently situated milled heads r. The spindles are preferably so
arranged that they all rotate in the same direction for raising the studs, and
in the reverse direction for lowering them. By rotating the spindles the com-
pression of springs g, which are contained in tubular bosses on the underside of
the table and bear upon loose discs * resting on the ends of the studs n, can be

page_text: varied as required to adjust the position of the table to any irregularity or want
of truth in the die surface, or to concentrate the pressure of wiping at any par-
ticular part of the die. A loose plugs is inserted in a cavity in the press frame
under each of the screw studs to limit the extent of downward motion of the
said studs; by inserting plugs of varying lengths the extent of movement can be
adjusted. The springs form an elastic support to the table, enabling it to oscil-
late about the central screw stud j as a centre and automatically adapt itself to
the die face in order to prevent the table being carried forward or tristed by
the action of the die as it passes across the wiping paper, oppositely arranged
lugs (see Figa. 4 and 5) formed on the table and the frame top engage with
each other so as to prevent forward movement and consequent jamming of and
variable friction between the parts of the table and the frame top which are in
contact, while allowing any part of the table to be forced down against the action
of the springs or to yield to the pressure of the die.
Journalled in lugs under the front edge of the table is an eccentric roller,
having the end of one of its pivots formed square for convenience in rotating it
with a key. Under the back edge of the table a slotted roller is similarly jour-
nalled. It is provided at one end with a knob furnished with tommyholes, or
with a hexagon head to take a spanner, and at the other end with a nut to lock
it. The pad before mentioned is composed of pieces of felt and carboard laid
on the table and covered by a piece of felt, one end of which is gripped between
the eccentric roller and the underside of the table, the other end being inserted
in the slot in the roller at the other end of same; the said roller is rotated till
the felt is strained tight, and then locked by the nut aforesaid at its end.
The wiping paper consists of a long strip d wound into a roll carried on a
spindler having movable discs or flanges w which can be fixed thereto by set
screws to suit varying widths of paper.
sleeves
Lateral spikes (see Figs. 1 and 15) on the inner sides of the flanges to enter
and grip oppositely arranged conical wooden
which slide upon the
spindle and are adapted to be forced into the ends of the paper roll, so that the
said spindle is held firmly therein. The spindle is journalled in the forked ends
Blocks 1 are provided which can be pressed by screws 2 with any
desired degree of friction against the journals of the spindle v, the said blocks
and screws being carried by swinging latches 13 (see Fig. 16), upon turning which
the spindle can be removed from or placed in its bearings.
of arms z.
The
The paper passes upwards, over the pad on the table e and then down to a waste
paper roller 3 on which it is wound up as used. This waste paper roller (see
Figs. 9, 10 and 11) is made in two approximately semi-cylindrical parts 4, 5
hinged together at 6 on one side but with a gap left between the edges on the
other side which gap is filled by hinged pieces 7, 7 held in place by springs 8 and
provided with thumb pieces 9 so as to be readily displaceable to allow the roller
to collapse; the hub of the roller is also formed with a gap as shown.
hinged pieces 7, 7 may be secured in place by screw or other suitable devices
instead of by springs, if desired. The waste paper roller has a spindle 10 (see
Fig. 12) fitted with bushes 13, 14 journalled in the side plates of the frame f
These bushes have recessed flanges 15, in which are seated friction washers 17 of
vulcanized fibre or other suitable material bearing against the hub ends of the
roller 3. The spindle 10 has a head 18 at one end bearing against the outer end
of the bush 14, and the bushes, which slide on feathers 19 on the spindle, are
forced against the ends of the hub of the roller 3 by a nut 20 screwed on to the
other end of the spindle; thus, when the spindle is rotated, the roller is rotated
by the frictional contact of the washers 17.
Journalled in the frame f above the waste paper roller 3 is a spindle 21 having
a feed roller 23 secured thereon against which the paper d is pressed by a fric-
tion roll 24 having grooves formed on the surface which converge towards the
middle of the roll, and in which are embedded strips 25 of felt or other suitable
material which will give the necessary grip on the paper. The spindle ends of

page_text: the roll 24 are carried in spring pressed bearings 26 movable longitudinally in
arms extending from the frame f, Screws 27 being provided to enable the com-
pression of the springs and the pressure of the friction roller to be adjusted.
The rollers 23 and 3 are simultaneously partially rotated so as to draw
the paper over the pad on the table e by means of a rack bar 28 sliding on studs 28
and operated in a downward direction by a cam 29 on the die arm shaft and
engaging with partial spur pinions 30 and 31 loosely mounted on the spindle 21
and the bush 13 respectively and provided with arms 32 carrying pawls 33 which
are kept in contact by springs 34 with ratchet wheels 35 fixed to the spindle 21
and the bush 13 respectively. The rack bar 28 is, after making its operative
stroke, moved in an upward direction by a spring 36; during this upward move-
ment the pawls 33 slip over the ratchet teeth, but, when said bar is depressed by
the cam 29 they engage with the wheels 35 and simultaneously rotate the
rollers 23 and 3 thus feeding the wiping paper d forward. The upward move-
ment of the rack bar is limited by nuts 36 upon a screw 37 extending from its
lower end and passing through a lug or eye 38 on the frame f. 39 is a slotted
quadrant pivoted on the boss of the frame f in which the spindle 21 rotates,. and
having a guard plate 40 partly covering the ratchet wheel 35 on said spindle.
The guard can be fixed in any required position by a clamping screw 41 screwed
through the curved slot 42 in the quadrant into the frame f; the feed of the
paper can thus be regulated according to the size of the die by exposing a greater
or lesser number of teeth to the action of the pawl. The movement given to
spindle of the waste paper roller always corresponds to the largest possible move-
ment of the paper feed roller 23 and the action of the roller 3 is such that it will
only take up the slack paper fed by the feed roller 23, the tension on the paper
caused by the spring pressed roller 24 compelling the roller 3 to slip on its spindle
when there is no slack to take up; the pressure of the washers 17 against the
roller hub can be so regulated by the uut 20 as to just permit the necessary slip
and yet insure the roller taking up the waste paper and holding it taut on the
wiping pad. To prevent backlash or rotation in the wrong direction, one edge of
the roller 3 is cut with ratchet teeth 43 and two spring pawls or catches 44 in the
frame f engage therewith.
When the roller 3 is full, the spindle 10 is withdrawn from the frame after
releasing the nut 20, and the parts 7; 7, having been pressed inwards, the roller
is collapsed, whereupon the roller 3 can be readily drawn out of the roll of paper,
thus avoiding the waste of time involved in unwinding or cutting the paper to
remove it as was necessary with the form of roller previously employed.
The entire wiping apparatus is lifted to press the paper against the die by
means of a lever 50 (see Fig. 17) pivoted at its outer end and having a semi-
circular cavity 51 on its upper side in which the boss k rests. The lever 50
extends practically without lateral play through recesses f* in opposite sides of
the frame f so that it is unnecessary to apply to the lower part of the frame
means for preventing it being twisted by the passage of the die and there is thus
nothing to prevent the frame descending with the lever after the wiping opera-
tion. The downwardly bent inner end of the lever carries a roller 52 and extends
over a disc 53 fixed on a vertical shaft which, in the example illustrated, is the
die-arm shaft; the disc is formed with a cam 54 which comes under the roller 52
and so lifts the entire wiper.
The inner end of the lever 50 is suitably guided between jaws 55 formed on the
press frame and, when raised, is held by a spring-pressed hook 56 (Fig. 1) which
is pivoted to it and slips over and engages with a bar 57 fixed upon the jaws 55.
An adjustable sleeve 58 is fixed by a set screw 59 in the required position on the
lie arm shaft and carries a roller 60 which, at the right time, pushes the hook 56
off the bar 57 and allows the wiping apparatus to drop, the cam 54 having mean-
chile cleared the roller 52; the springs y act as buffers to check the fall of the
viping apparatus.
As it is necessary to be able to regulate with great delicacy and precision the

page_text: height to which the wiper shall rise, so as to suit variations in the thickness of
dies, or of the wiping pad, or to vary the pressure against the die according to
its size, or the amount or nature of the work on it, the outer end of the lever 50
is formed with an incline 61 on its underside which rests upon a fulcrum piece 62
which can be slidden between jaws 63 projecting from the bed piece 64 by a
screw 65 provided with a worm wheel 66 engaged by a worm on a shaft 67 which
extends to a convenient part of the press where it is provided with a hand wheel 68.
By rotating this hand wheel, the fulcrum piece 62 can be very finely adjusted
along the incline 61 of the lever 50 the end of which is thus raised or lowered, and
the vertical position of the wiping apparatus is thus regulated as required. This
adjustment can be effected without stopping the working of the press. Lateral
and endwise movements of the lever 50 are prevented by the jaws 63 and by a
pin 69 passing through said jaws and a vertical slot in the lever end.
For the purpose of enabling the wiping paper to be fed forward over the table
by hand as may be required, a hand wheel 70 is secured to the spindle 10 and
another similar hand wheel (not shown) is secured to the spindle of the friction
roller 24. Upon the rack bar 28 is a handle 71 for the same purpose.
72 is a waste paper guide roller carried by arms 73 fixed to the frame f; it is
capable of adjustment upon the arms 73. 74 is a scraper plate fixed to a bar 75
pivoted in arms 76 and so fixed by means of pinching screws 77 that its upper
edge bears against the paper just below the roller 72 and scrapes the ink off the
paper as it is drawn down by the waste paper roller 3. The ink, which flows
down the plate, is received in a receptacle whence it is returned to the ink reser-
voir, a considerable waste of ink being thereby obviated. In the modification
shown in Fig. 13 the paper d is shown passing between the edge of the scraper
plate 74 and a weighted plate 78 faced with felt and suspended from the arms 73;
this arrangement is preferred, as with it, although the roller 3 may be drawing
in slack paper, the plate 78 ensures it being drawn across the edge of the plate 74
and the ink removed.
With the aid of wiping apparatus such as above described much finer work can
be produced than has so far as I know, heretofore been possible as the improve-
ments enable the wiper to be pressed against the printing surface with the exact
pressure required; one result of the described construction being that, when
desired, a much harder and smoother wiping paper can be used than has hereto-
fore been usual and yet a perfectly clean wipe of the face of the die obtained.
This is very important in practice, as a hard smooth paper does not, as do the
comparatively soft papers hitherto used for this purpose, enter the female parts
of the die, particularly those parts which are wide as well as deep and the very
fine, shallow shading or clouded lines, and wipe some or all of the ink out of such
parts, but leave them fully charged with ink so that, instead of the print being
defective it is an exact impression in relief of the intaglio surface of the die--in
other words, the thickness or depth of the ink forming each line of the print or
impression is the same as the depth of the corresponding engraved line in the die.
Moreover, from hard smooth paper a large proportion of the ink can be recovered
by means of a scraper in a condition in which it can be returned direct to the ink
reservoir and re-used, but this is impracticable with a soft paper.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is-
1. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping paper supply
roll, a collapsible waste wiping paper roll, means for feeding wiping paper from
one roll to the other across said pad and means for scraping from said paper ink
wiped from the die, substantially as described.
2. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping paper supply

page_text: roll, a waste wiping-paper roll, means for feeding wiping paper from one roll to
the other across said pad, means for scraping from said paper ink wiped from
the printing surface of the press and a movable frame adapted to support all said
previously mentioned parts, substantially as described.
3. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping paper supply
roll, a waste wiping-paper roll, means for feeding wiping paper from one roll to
the other across said pad, means for scraping from said paper ink wiped from
the printing surface of the press, a movable frame adapted to support all said
previously mentioned parts, and means whereby said frame and parts are raised
at the required times, substantially as described.
4. In the wiping apparatus of a printing press the herein before described im-
proved construction and arrangement of parts whereby the table is free to auto-
matically adapt itself to any irregularities or want of parallelism in the form of
the die.
5. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping paper supply roll,
a waste wiping paper roll, means for feeding wiping paper from one roll to the
other across said pad, means for scraping from said paper ink wiped from the die,
a movable frame adapted to support said previously mentioned parts, a lever on
which said frame rests and the fulcrum end of which is formed with an incline
on its underside, a movable fulcrum-piece on which said incline rests and means
for adjusting the position of said fulcrum-piece, substantially as described.
6. In the wiping apparatus of a printing press the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
a waste wiping paper roll, means for feeding wiping-paper from one roll to the
other across said pad, means for scraping from said paper ink wiped from the die,*
a movable frame adapted to support said previously mentioned parts, a lever on
which said frame rests and the fulcrum end of which is formed with an incline
on its underside, a movable fulcrum-piece on which said incline rests, a longi-
tudinally fixed screw through said fulcrum-piece and means for rotating said screw,
substantially as described.
7. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
a waste wiping-paper roll, means for feeding wiping-paper from one roll to the
other across said pad, means for scraping from said paper ink wiped from the die,
a movable frame adapted to support said previously mentioned parts, a lever on
which said frame rests and the fulcrum end of which is formed with an incline
on its underside, a movable fulcrum-piece on which said incline rests, a longi-
tudinally fixed screw passing through said fulcrum-piece, a worm-wheel fixed to
said screw, a rotatable spindle with accessible hand-wheel and a worm gearing
with said worm wheel, substantially as described.
8. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a central adjustable connec
tion between said table and support, screw studs extending upwardly through
said support, springs resting between said studs and table, worm wheels fixed to
said studs and worm spindles gearing therewith substantially as described.
9. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a central adjustable connec-
tion between said table and support, screw studs extending upwardly through
said support, springs resting between said studs and table, worm wheels fixed to
said studs, worm spindles gearing therewith and removable abutments carried by
the support and adapted to limit the movement of the screw studs, substantially
as described.
10. In the wiping apparatus of a printing press, the combination of a support,
springs carried by said support, a table resting on said springs, a central boss upon
the underside of said table, a tubular boss upon the underside of the support and
a screw stud having a rounded head and adapted to be screwed into the boss ou

page_text: the table through said tubular boss and a hole of decreasing diameter towards the
lower part which is formed through the support substantially as described.
11. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
a waste wiping-paper roll and means for feeding wiping paper from one roll to
the other across said pad, the spindle of the supply roll being provided with coni-
cal adjustable sleeves adapted to be forced into the ends of the roll of wiping
paper and with adjustable Hanges each having means for fixing it to the spindle
and lateral projections adapted to engage with the adjacent sleeve, substantially
as described.
12. In the wiping apparatus of printing or printing and embossing
presses, the combination of a support, a table mounted thereon, a
pad carried by said table, a wiping-paper supply roll, adjustable fric-.
tion blocks capable of being pressed against the journals of the spin-
dle of said roll by means of screws, a waste wiping-paper roll, means for
feeding wiping paper from one roll to the other across said pad, and latches carry-
ing said blocks and screws and capable of being readily displaced substantially as
described.
13. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pád carried by said table, a wiping-paper supply roll,
and means for feeding wiping paper from one roll to another across said pad, the
roller on which said waste wiping paper is wound comprising parts hinged together
and having a gap between their free edges when expanded, displaceable pieces
adapted to occupy said gap and yielding means for holding said pieces in posi-
tion, substantially as described.
14. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
and means for feeding wiping paper from one roll to another across said pad,
bushes capable of sliding on but keyed to the spindle of the waste paper roller
and extending through the frame of the apparatus, friction washers arranged
between said bushes and the respective ends of the roller hub and means for
drawing said bushes towards each other along said spindle, substantially as
described.
15. In apparatus for wiping the printing surface of a die, the combination with
a frame movable towards and from said printing surface of a wiping paper supply
roll, a feed roller, a friction roller pressed towards said feed roller so as to grip
paper passing between said feed and friction rollers, a yielding pad across which
the wiping paper is fed, a waste wiping paper roll, means for scraping ink from the
waste paper as it passes to the waste paper roller, means for causing the rotation
of said feed roller and waste paper roller so as to feed the wiping paper across said
pad and means for .imparting movement to the said frame, substantially as
described.
16. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
a waste wiping paper roll, means for feeding wiping-paper from one roll to the
other across said pad, a movable frame in which all said parts are mounted, rat-
chet teeth upon said waste paper roller and spring catches upon said frame which
are adapted to engage with said teeth, substantially as described.
17. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,
a waste wiping-paper roll, means for feeding wiping paper from one roll to the
other across said pad, a fixed scraper plate adapted to bear against the inked sur-
face of the wiping paper at an angle thereto, and a weighted plate so suspended
as to bear against the uninked surface of the paper so as to press the inked surface
against the edge of the scraper plate, substantially as described.
18. In the wiping apparatus of a printing press, the combination of a support,
a table mounted thereon, a pad carried by said table, a wiping-paper supply roll,

page_text: a waste wiping-paper roll, means for feeding wiping paper from one roll to the
other across said pad, a guide roller over which the wiping paper passes on its
way from the pad to the waste paper roller, a fixed scraper plate adapted to bear
against the inked surface of the wiping paper at an angle thereto, and a weighted
plate so suspended as to bear against the uninked surface of the paper so as to the
press the inked surface against the edge of the scraper plate, substantially as
described.
19. Wiping apparatus constructed, arranged and operating substantially as
described with reference to and shown in the accompanying drawings.
Dated this 10th day of May 10.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Chartered Patent Agent.