Year: 1884

page_text: I HENRY EDWARD NEWTON of the Office for Patents 6 Bream's Buildings
Chancery Lane in the County of Middlesex, Civil Engineer seek leave to amend
the specification of Letters Patent, No. 12,752 of 1884, as shown in red ink in the
copy of the original specification hereunto annexed :-
My reasons for making this amendments are as follows:-
That in the specification filed, which is a translation of the description of the
invention as supplied to me, by my foreign-correspondent, and filed in accordance
with his express instructions, a claim is made for the various mechanical com-
binations described for ensuring the regular working of all the parts, which claim
is beyond the scope of the patent, as covering matter common to this class of
machines, and which it is not intended to describe.
It is therefore deemed undesirable to retain this claim and the references thereto
in the specification.
That the specification does not sufficiently explain the construction of certain
essential parts, and it is desired to insert, by way of explanation, further description
of such parts, and to make certain other verbal corrections which will render the
meaning clearer, and also to illustrate such additional description in the drawings
and to correct certain reference letters.
.
MA

page_text: In the matter of the application made by Henry Edward Newton for leave to
amend the Specification of Letters Patent No. 12,752 of 1884.
I hereby grant leave to the said Henry Edward Newton to amend the said
Specification in the manner proposed.

page_text: I HENRY EDWARD NEWTON of the Office for Patents 6 Breams Buildings
Chancery Lane in the County of Middlesex, Civil Engineer do hereby declare
the nature of my invention for IMPROVEMENTS IN APPARATUS FOR PRINTING FROM
ENGRAVED PLATES to be as follows:-
T
This invention relates to a novel construction of apparatus for printing from
engraved plates more particularly copper plates, and the invention consists
essentially.
1st In communicating to the movable platform or table on which the engraved
plate to be printed from is placed and which receives a rectilinear to and fro
motion, a simultaneous perpendicular movement during its passage under wipers or
cleaners.
2 In the use of a rough wiper placed between the ink distributing rollers and
the inking rollers.
3 In the employment of dry wipers and damping pads so that the wiping or
cleaning of the plate commenced by the rough wiper is completed by two or more
dry wipers and damping pads.
:
4. In the means for shifting the wiping material or blanket.
5. In the special combinations of parts which ensure regularity in the working
of the machine as well as perfection in the impression obtained.
The machine consists of a suitable frame which carries at one end an inking
apparatus arranged to distribute ink on a table.
This table as well as a platform or small tablo on which the engraved plate is
fixed is carried by a suitable frame or carrige to which a reciprocatory motion is
given in any convenient manner.
When this carriage commences a movement say to the right carrying with it the
table supplied with ink, and the engraved plate which has been previously inked,
the plate is passed first under a wiper which may be termed a rough wiper and
which serves to remove the greater portion of the ink, then under the two inking
rollers which are at this moment raised to avoid all contact with the plate.
The plate next passes under two or more dry wipers and finally under two wet
wipers by which the wiping operation is completed.
The plate is next passed to the impression roller which is provided with means
for drawing the sheet of paper onto the plate and the impression is obtained.
On the return stroke of the carriage after the attendant has removed the proof
just taken, the table passes under the finishing wipers which are raised to allow a
free passage, and then it comes in contact with the inking rollers on which it
deposits the ink taken up on starting.
During this retrograde movement the engraved plate is first withdrawn from
under the impression cylinder, and is passed under the wipers which are raised out
of contact; it is thus inked by contact with the rollers and is submitted to a first
wiping by the rough wiper.
After it has returned to the point of departure the carriage recommences its
forward motion and the same operations are effected in the same order.
The carriage carries on either side a flat bar or beam which is secured thereto by
the bolts on which the bars oscillate horizontally.
The said bars are united at their extremities by links so as to constitute a
parallelogram.
The bars are provided besides at their rear ends with rollers or bowles which
bear laterally against guides fixed to the side bars,

page_text: '
These guides are formed with undulations in their length so that during one part
of the longitudinal course of the carriage the parallelogram is caused to oscillato on
its centres an the platform or table receives a transverse to and fro movement
combined with a longitudinal motion.
•
The result of this double movement is to ensure the action of the wipers on
every part of the engraved plate in a manner similar to that of the workman when
wiping by hand.
The wipers are composed of elastic bands furnished with leathor and fixed cach
separately to the bottom of a frame formed of two pieces of cast iron bolted to อ
horizontal transverse piece or beam below which is fixed a pad.
}
1.
1 This beam is, secured, to a hollow cylinder through. which is passed a rod
surrounded by a coiled spring.
The four roda placed on one side of the machine and which correspond to the
four wipers are fixed to a bar supported by two rods connected at their lower ends
by a beam and capable of sliding vertically in guides secured to the main frame.
The beam carries a friction roller or bowle which rests on a lever pivotted at
one end to a fixed axis on the frame whilst the other end is bent to receive a small
bowle which rests on a cam.
I
E 4
"
די
This cam is fixed on a shaft which receives rotary motion in any convenient
manner so that at each turn of the shaft the cam acting on the bowle causes the
lever to rise and gives alternately at the desired moment an up and down motion
to the four frames and consequently to the wipers
The material or blanket applied on the wipers to effect the wiping of the
engraved plates, is renewed at each passage of the plate, for which purpose it is
rolled on two pairs of rollers which receive motion from a ratchet and pawl.
On the axis of the pawl is fixed a lever pivotted to a horizontal bar which is
supported by a rod fixed on the framo so that when the frame descends, the bar
remaining fixed, the small lever is caused to approach the horizontal and the pawl
is caused to turn the ratchet wheel. This rotates the roller and with it the endless
band.
At the moment of the passage of the engraved plate under the wipera the
platform or table which supports this plate receives its undulatory movement.
.
In order that the cleaning of the plate should be perfect it is necessary to
'maintain the two right hand wipers constantly humid. To attain this result
rollers clothed with some suitable material which will readily take up and hold
water are arranged in advance of the carriage.

page_text: I, HENRY EDWARD NEWTON of the Office, for Patents, 6 Breams Buildings
Chancery Lane in, the County of, Middlesex, Civil Engineer do hereby declare
the nature of the said invention for IMPROVEMENTS IN APPARATUS FOR PRINTING
FROM ENGRAVED PLATES and, in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to a novel construction of apparatus for printing from
engraved plates more particularly copper plates and the invention consists
essentially.
1. In communicating to the movable platform or table on which the engraved
plate is placed and which receives a rectilinear to and fro motion, a simultaneous
lateral movement during its passage under wipers or cleaners.
2. In the use of a rough wiper placed between the ink distributing rollers and
the inking rollers.
3 In the employment of dry wipers and damping pads wet wipers so that the
wiping or cleaning of the plate commenced by the rough wipers is completed by
two or more dry wipers and damping pads wet wipers.
4. In the means for shifting the wiping material or blanket.
5.-In-the-special combinations of parts which ensure regularity in the working
of the machine-as-well as perfection in the impression obtained.
In the accompanying drawing:-
Fig 1 is a longitudinal section of a machine constructed according to this
invention;
Figs 2 to 6 show in plan and section, and, also various details of, the table which
receives the engraved plate; and
Figs 7 to 10 show the details of the wipers and the mechanism for actuating
the same and the wiping material or blankets.
The machine consists of a suitable frame B which carries at one end an inking
apparatus E arranged to distribute ink on a table D.
This table as well as a platform or small table C on which the engraved plate is
fixed, is carried by a suitable frame or carriage A to which a reciprocatory motion
is given in any convenient manner.
When this carriage commences a movement, from the position of Fig. 1 say, to
the right, carrying with it the table D supplied with ink and the engraved plate
which has been previously inked and partially wiped by the wiper h, the plate is
passed first again under a the wiper h which may be termed a rough wiper and
which serves to remove the greater portion of the ink, then, under the two inking
rollers d'which are raised to avoid all contact with the plate.."
The plate next passes under two or more dry wipers h and finally under two
wet wipers by which the wiping operation is completed.
The plate is next passed to the impression cylinder K which is provided with
means for bringing the sheet of paper into contact with the plate and.. the
impression is obtained,
24. %

page_text: During this movement of the carringo A. the inking table D which is arranged at
a slightly lower level than the engraved plate has passed under the rough wiper
and the finishing wipers hand without touching either of these parts wipers.
On the return stroke of the carriage A (after, the attendant has removed the proof
just taken) the table D passes Gist under the finishing wipers which are raised to
allow of a free passage and then it comes in contact with the inking rollers d on
which it deposits the ink taken up on starting and continuing its movement passes
the rough wiper h without touching it.
During this retrograde movement the engraved plate is first withdrawn from
under the impression cylinder K and is passed under the wipers and which
are still in a raised out-of-contact, position; it is tlien inked by contact with the
rollers and is submitted to a first wiping by the rough wiper h.-
After it has returned to the point of departure, (position shown in Fig. 1) the
carriage A recommences its forward motion and the same operations are effected in
the same order.
'
It will be seen from Figs 2, 3 and 4 that the carriage A (which is there repre-
sented in two sections at right angles one to the other and in plan) is supported
on 8 rollers which run on the side bara b of the frame.
The carriage consists of a platform A provided with a rack A' and it carries
underneath through which it receives its traverse motion in any well known
munner. Fitted to this carriage and on either side is a flat bar or beam A
which is bars are secured thereto by the pivot bolts a' on which the bars oscillate
horizontally.
Fig. 3 shows that the said bars A* are united at their extremities by links
bars a² a³ so as to constitute a parallelogram.
At the middle of its length, the link bur a' carries a stud a³ which serves to support
the table C centrally, and it is upon this table that the engraved plute to be printed
is placed. To enable the table to resist the pressure of the impressing cylinder K,
it is supported on its under face by rollers interposed between it and the carriago A.
The bars A are provided at their rear ends with rollers or bowlos u which bear
laterally against lateral guides b¹ fixed to the side bars b.
These guides are formed with undulations in their length so that during one part
of the longitudinal course of the carriage that is, while the inked plate is passing
under the wipers, the parallelogram Aa³ a³ is caused to oscillate on its centres à¹
and the platform or table C receives a lateral as well as a longitudinal reciprocating
motion.
The result of this double movement on the engraved plate fixed on the platform
or table C is to ensure the action of the wipers on every part of the engraved plate
in a manner similar to that of the workinan when wiping by hand.
The wipers hhh aro composed of elastic bands-furnished pads covered with
leather and fixed each separately to the bottom of a frame represented in detail
Figs 7 and 8, 9 and 10.
Each of these frames is formed of two side pieces of cast iron F bolted at bottom
to a horizontal transverse piece or beam f below which is fixed a pad h h³ or h³ ns
the case may be.
This cross bean carries at each end a lug by which it is bolted to a hollow
cylinder F through which is passed a rod g surrounded by a coiled spring and.
furnished with a shoulder on which the spring rests.
The four or more rods g placed on each side of the machine and corresponding to
the wipers are fixed to a bar g which is supported by two rods g² connected
at their lower ends by a erose longitudinal bar g³ and capable of sliding vortically
in guides secured to the main frame.
The beam bar carries a friction roller or bowle which rests on a lever G. This
lever is pivotted at one end to the frame whilst the other end is bent upwards and
carries a small bowlog which rests on a cam j³.
.
I
This cam g is fixed on a shaft which receives rotary motion in any convenient,
manner so that at each turn of the shaft the cam acting on the bowle causes the

page_text: 5
lever to rise and gives at the desired moment an up, and down motion to the four
frames F and consequently to the wipers h¹ and h³
The interposition of the coiled springs contained in the cylindrical cases Fi
enables the wipers to act upon the plate with a yielding or elastic pressure, the
weight of the wiper frames being partially sustained by the coiled springs.
When the wipers are lowered the inking rollers d are raised to allow the inked
plate to pass freely under them, and inversely, when the wipers are raised, the
inking rollers d'are lowered to ensure their contact with the plate in its return
motion.
The material or blanket woven fabric applied on to the wipers. pads to effect the
wiping of the engraved plates is renewed at each passage complete traverse of '
the plate, for which purpose it is rolled on two pairs of rollers f¹ and f'.
Each pair of these rollers receives an endless band which is stretched by screws
(see Figs 7. 8 and 9) or in any convenient manner. One end of the blanket fabric
is sewn to the endless band at-a-convenient point is passed under the pad of the
wiper and is fixed by its other end to the endless band at another convenient
point of the rollers f' and wound up upon the band, leaving a sufficient length to
pass down under the pad and reach the band of the rollers f, to which it is secured
by sewing.
',
:
At each passage of the inked plate which corresponds to the lowering of the
four frames F the blanket fabric is caused to unrolls about 4 millimeters so as to
present a clean surface for the following passage of the plate
The successive unrolling of the blanket fabric is obtained by means of a ratchet
motion which as respects the wipers h' and h is composed of a ratchet wheel i
and a pawl. On the axle of the wheel is mounted a lever i' Fig 7 to which is
pivotted the pawl. This lever i is connneted to keyed on the axle of the lower
roller f' and actuated by a pawl pivotted to the lever i' which is mounted loosely
on the roller axle and bears upon a.horizontal bar I which is supported by a
column I-fixed on the main frame of the machine.
Thus when the raised frame F descends as the cam g passes the bowl of the
lever G, the bar I remaining fixed the small lever is caused to approach the
horizontal and the pawl is caused to turn the ratchet wheel i. This rotates
the roller f and with it the endless band. Motion is transmitted to the roller fl
of the second other endless band by the pinions 2 (Fig 8).
The arrangement described is the same for the four frames. of the wipers h¹
and h; the four pieces of blanket fabric are thus moved simultaneously when
all the frames are lowered.
As the rough wiper frame has no vertical motion, the arrangement just described
for shifting the fabric over the wiper pad is not applicable in this case. By
reference to Figures 9 and 10 it will be seen that the axles of the lower rollers f¹ f¹
are fitted with spur wheels is, which instead of geuring together are geared into
and driven by a pinion is fitted loosely on a stud axle carried by the frame F.
On the boss of the pinion is a ratchet wheel i into the teeth of which takes a pawl
carried by a lever i supported on the stud axle. The tail of this lever projects
into the plane traversed by a stud pin is projecting from the carriage A. When,
therefore, in the traverse of the carriage, the stud is strikes the tail of the lever i¹,
the ratchet wheel will be moved by the pawl and caused to transmit motion through
the pinion is to the fabric on the wiper.
It may be remarked that it is precisely at the moment of the passage of the
engraved plate under the wipers that the platform or table C which supports
this plate receives its lateral movement. This movement is repeated under each
wiper but with a different point of departure for each curve which gives as nearly
as possible a motion similar to the movement of the hand.
In order that the cleaning of the plate should be perfect it is necessary to
maintain the two right hand wipers constantly humid. To attain this result
rollers J (fig 1) clothed with some suitable material which will readily take up and
hold water are arranged in advance on the forward end of the carriage A

page_text: When these rollers J arrive just below the two last wipers they are raised to
damp the wipers.
1
This is effected by mounting the rollers, in bearings in T pieces j, which are
pivotted to the ends of armsj keyed to a rock shaft mounted in bearings du
the carriage A. An arm j keyed to the transverse shaft j carries a bowl which
bears upon a fixed cum j made fast to the side frume B.-As therefore the
carriage in its traverse, is about to present the damping rollers I to the wet
wipers, the bowl of the arm j³ will strike the fixed cam j, and the shaft j' will
thereby be rocked, causing its arms j' to lift the rollers and bring them into
contact with the wet wipers. As the bowl leaves the cam j, the rollers J will
drop to their normal position, and thus pass clear of the other wipers. These
rollers may, if desired, be damped automatically, but the attendant, by applying
thereto a wet sponge from time to time, will readily maintain them in their
required moist condition. By the above described arrangement of mechanism
The important operation of cleaning or wiping, is thus perfectly effected
hitherto the greatest difficulty in mechanically taking impressions from engraved
copper plates, is thus entirely overcome.
'
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
1st Communicating to the platform or table which receives the engravod plate
and during its forward motion under the wipers or cleaners a lateral reciprocating
motion substantially as and for the purpose described.
2 The employment of a rough wiper or pad, dry wipers and damping--pads
wet wipers substantially as and for the purpose described.
3rd The means for advancing the wiping material or blanket fabric substantially
as herein shown and described.
4 The various mechanical combinations-substantially-no-described for ensuring
the-regular-working of all the parts:

page_text: I HENRY EDWARD NEWTON of the Office for Patents 6 Breams Buildings
Chancery Lane in the County of Middlesex, Civil Engineer do hereby declare
the nature of my invention for IMPROVEMENTS IN APPARATUS FOR PRINTING FROM
ENGRAVED PLATES to be as follows:-
This invention relates to a novel construction of apparatus for printing from
engraved plates more particularly copper plates, and the invention consists
essentially-
1 In communicating to the movable platform or table on which the engraved
plate to be printed from is placed and which receives a rectilinear to and fro
motion, a simultaneous perpendicular movement during its passage under wipers or
cleaners.
2 In the use of a rough wiper placed between the ink distributing rollers and
the inking rollers.
3 In the employment of dry wipers and damping pads so that the wiping or
cleaning of the plate commenced by the rough wiper is completed by two or more
dry wipers and damping pads.
4. In the means for shifting the wiping material or blanket.
5. In the special combinations of parts which ensure regularity in the working
of the machine as well as perfection in the impression obtained.
The machine consists of a suitable frame which carries at one end an inking
apparatus arranged to distribute ink on a table..
This table as well as a platform or small table on which the engraved plate is
fixed is carried by a suitable frame or carrige to which a reciprocatory motion is
given in any convenient manner.
When this carriage commences a movement say to the right carrying with it the
table supplied with ink, and the engraved plate which has been previously inked,
the plate is passed first under a wiper which may be termed a rough wiper and
which serves to remove the greater portion of the ink, then under the two inking
rollers which are at this moment raised to avoid all contact with the plate.
The plate next passes under two or more dry wipers and finally under two wet
wipers by which the wiping operation is completed.
The plate is next passed to the impression roller which is provided with means
for drawing the sheet of paper onto the plate and the impression is obtained.
On the return stroke of the carriage after the attendant has removed the proof
just taken, the table passes under the finishing wipers which are raised to allow a
Price 6d1

page_text: •
free passage,.and then it comes in contact with the inking rollers on which it
deposits the ink taken up on starting.
During this retrograde movement the engraved plate is first withdrawn from
under the impression cylinder, and is passed under the wipers which are raised out
of contact; it is thus inked by contact with the rollers and is submitted to a first
wiping by the mugh wiper..
After it has returned to the point of departure the carriage recommences its
forward motion and the same operations are effected in the same order.
The carriage carries on either side a flat bar or beam which is secured thereto by
the bolts on which the bara oscillate horizontally.
The said bars are united at their extremities by links so as to constituto a
parallelogram.
The bars are provided besides at their rear ends with rollers or bowles which
bear laterally against guides fixed to the side bars.
Those guides are formed with undulations in their length so that during one part
of the longitudinal course of the carriage the parallelogram is caused to oscillate on
its contres on the platform or tablo receives a transverse to and fro movement
combined with a longitudinal motion.
The result of this double movement is to ensure the action of the wipers on
every part of the engraved plate in a manner similar to that of the workman when
wiping by hand:.
The wipers are composed of elastic bands furnished with leather and fixed each
separately to the bottom of a frame formed of two pieces of cast iron bolted to a
horizontal transverse piece or beam below which is fixed & pad:
This beam is secured to a hollow cylinder through which is passed a rod
surrounded by a coiled spring.
The four rods placed on one side of the machine and which correspond to the
four wipers are fixed to a bar supported by two rada connected at their lower ends
by a beam and capable of sliding vertically in guides secured to the main frame.
The beam carries a friction roller or bowle which rests on a lever pivotted at
one end to a fixed-axis on the frame whilst the other end is bent to receive a small
bowle which rests on a cain.
This cam is fixed on a shaft which receives rotary motion in any convenient
manner so that at each turn of the shaft the cam acting on the bowle causes the
lever to rise and gives alternately at the desired moment an up and down motion
to the four frames and consequently to tho wipers.
The material or blanket applied on the wipers to effect the wiping of the
engraved plates, is renewed at each passage of the plate, for which purpose it is
rolled on two pairs of rollers which receive motion from a ratchet and pawl..
On the axis of the pawl is fixed a lever pivotted to a horizontal bar which is
supported by a rod fixed on the frame so that when the frame descends, the bar
remaining fixed, the small lover is caused to approach the horizontal and the paw!
is caused to turn tho ratchet wheel. This rotates the roller and with it the endless
band.
At the moment of the passage of the engraved plate under the wipers the
platform or table which supports this plate receives its undulatory movement.
In order that the cleaning of the plato should be perfect it is necessary to
maintain the two right hand wipers constantly humid. To attain this result
rollers clothed with some suitable material which will readily take up and hold
water are arranged in advance of the carriago.
Doted this 24th down of Santambar 1001

page_text: I, HENRY EDWARD NEWTON of the Office for Patents, 6 Breams Buildings
Chancery Lane in the County of Middlesex, Civil Engineer do hereby declare
the nature of the said invention for IMPROVEMENTS IN APPARATUS FOR PRINTING
FROM ENGRAVED PLATES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:―
This invention relates to a novel construction of apparatus for printing from
engraved plates more particularly copper plates and the invention consists
essentially
1. In communicating to the movable platform or table on which the engraved
plate is placed and which receives a rectilinear to and fro motion, a simultaneous
lateral movement during its passage under wipers or cleaners.
2. In the use of a rough wiper placed between the ink distributing rollers and
the inking rollers.
3 In the employment of dry wipers and damping pads so that the wiping or
cleaning of the plate commenced by the rough wipers is completed by two or more
dry wipers and damping pads.
4. In the means for shifting the wiping material or blanket.
5. In the special combinations of parts which ensure regularity in the working
of the machine as well as perfection in the impression obtained.
In the accompanying drawing:-
Fig 1 is a longitudinal section of a machine constructed according to this
invention;
Figs 2 to 6 show in plan and section, and, also various details of, the table which
receives the engraved plate; and
Figs: 7 to 10 show the details of the wipers and the mechanism for actuating
the same and the wiping material or blankets.
The machine consists of a suitable frame B which carries at one end an inking
apparatus E arranged to distribute ink on a table D.
This table as well as a platform or small table C on which the engraved plate is
fixed, is carried by a suitable frame or carriage A to which a reciprocatory motion
is given in any convenient manner.
When this carriage commences a movement, say, to the right, carrying with it the
table D supplied with ink and the engraved plate which has been previously inked
the plate is passed first under a wiper h which may be termed a rough wiper and
which serves to remove the greater portion of the ink, then, under the two inking
rollers d which are raised to avoid all contact with the plate.
The plate next passes under two or more dry wipers h¹ and finally under two
wet wipers h by which the wiping operation is completed.
The plate is next passed to the impression cylinder K which is provided with
means for bringing the sheet of paper into contact with the plate and the
impression is obtained.
During this movement of the carriage A the inking table D which is arranged at
a slightly lower level than the engraved plate has passed under the rough wiper h
and the finishing wipers h¹ and h² without touching either of these parts.
On the return stroke of the carriage A after the attendant has removed the proof
just taken, the table D passes first under the finishing wipers which are raised to
allow a free passage and then it comes in contact with the inking rollers & on
which it deposits the ink taken up on starting and continuing its movement passes
the rough wiper h without touching it,

page_text: During this retrograde movement the engraved plate is first withdrawn from
under tho impression cylinder K and is passed under the wipers and which
are raised out of contact, it is then inked by contact with the rollers d and is
submitted to a first wiping by the rough wiper h
After it has returned to the point of departure, the carriage A recommences it's
forward motion and the same operations are effected in the saine order.
It will be seen from Figs 2, 3 and 4 that the carriage which is there represented
in two sections at right angles one to the other and in plan is supported on
S rollers which run on the side bars b of the frame.
The carriage consists of a platform A provided with a rack A' and it carries
underneath on either side a fat bar or beam A which is secured thereto by the
bolls a on which the bars oscillate horizontally.
Fig. 3 shows that the said bars A' are united at their extremities by links a' a³
so as to constitute a parallelogram.
The bars A are provided at their rear ends with rollers or bowles a' which bear
laterally against guides b' fixed to the side bara b.
These guides are formed with undulations in their length so that during one part
of the longitudinal course of the carriage the parallelogram A' a² a is caused to
oscillate on its centres a¹ and the platform or table O receives a lateral as well as a
longitudinal reciprocating motion.
The result of this double movement on the engraved plate fixed on the platform
or table C is to ensure the action of the wipers on every part of tho engraved plate
in a manner similar to that of the workman when wiping by hand.
The wipers are composed of elastic bands furnished with leather and fixed
ench separately to the bottom of a frame represented in detail Figs 7 and 8,
9 and 10.
Each of these frames is formed of two side pieces of cast iron F bolted at bottom
to a horizontal transverse piece or beam f below which is fixed a pad hh³ or h² as
the case may be..
This cross beam f carries at each end a lug by which it is bolted to a hollow
cylinder through which is passed a rod g surrounded by a coiled spring.
The four or more rods g placed on each side of the machino and corresponding to
the wipers are fixed to a bar g' which is supported by two rods g² connected
at their lower ends by a cross bar and capable of sliding vertically in guides
secured to the main frame.
The beam g carries a friction roller or bowle which rests on a lover G. This
lever is pivotted at one end to the fiame whilst the other end is bent upwards and
carries a small bowle g' which rests on n cam g³.
This cam g is fixed on a shaft r which receives rotary motion in any convenient
manner so that at each turn of the shaft the cam acting on the bowle causes the
lever to rise and gives at the desired moment an up and down motion to the four
frames and consequently to the wipers and h².
When the wipers are lowered the inking rollers & are raised and inversely.
The material or blanket applied on the wipers to effect the wiping of the
ongraved plates is renewed at ench passage of the plate, for which purposo it is
rolled on two pairs of rollers f¹ and ƒå.
Ench pair of these rollers receives an endless band which is stretched by scrows
(soc Figs 7. 8 and 9) or in any convenient manner. One end of the blanket is
sewn to the endless band at a convenient point is passed under the pad of the
wiper and is fixed by its other end to the endless band at another conveniont
point.
At each passage of the plate which corresponds to the lowering of the four
frames. the blanket unrolls about 4 millimeters so as to present a clean surface for
the following passage of the plate:
The successivo unrolling of the blanket is obtained by means of a ratchet motion
which is composed of a ratchet wheel i and a pawl. On the axle of the wheel i is
mounted a lever Fig 7 to which is pivotted the pawl.
This lever
is connected

page_text: to a horizontal bar I which is supported by a column I'fixed on the main frame of
the machine:
Thus when the frame F descends the bar I remaining, fixed the small lever i' is
eaused to approach the horizontal and the pawl is caused' to turn the ratchet
wheel. This rotates the roller and with it the ondless band. Motion is trans-
mitted to the roller of the second endless band by the pinions ³ (Fig 8)..
The arrangement described is the same for the four frames the four pieces of
blanket are thus moved simultaneously when all the frames are lowered.
It may be remarked that it is precisely at the moment of the passage of the
engraved plate under the wipers that the platform or table C which supports
this plate receives its lateral movement. This movement is repeated under each.
wiper but with a different point of departure for each curve which gives as nearly
as possible a motion similar to the movement of the hand.
In order that the cleaning of the plate should be perfect it is necessary to
maintain the two right hand wipers constantly humid. To attain this result
rollers J (fig 1) clothed with some suitable material which will readily take up and
hold water are arranged in advance of the carriage A.
When these rollers J arrive just below the two last wipers they are raised to.
damp the wipers..
The important operation of cleaning or wiping is thus perfectly effected.
The greatest difficulty in mechanically taking impressions from engraved copper
plates is thus entirely overcome.
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
1st Communicating to the platform or table which receives the engraved plate
and during its forward motion under the wipers or cleaners a lateral reciprocating
motion substantially as and for the purpose described.
2nd The employment of a rough wiper or pad, dry wipers and damping pads
substantially as and for the purpose described.
3rd The means for advancing the wiping material or blanket substantially as
herein shown and described..
4th The various mechanical combinations substantially as described for ensuring
the regular working of all the parts..
Dated this 22nd day of October 1884..
NEWTON & SON,
Agents for the Applicant..