Year: 1886

page_text: Date of Application, 20th Apr., 1886.
Complete Left, 19th Jan., 1887.
Complete Accepted, 22nd Feb., 1887.
We JOHN HENRY BUXTON, Newspaper Proprietor, DaVIES BRAITHWAITE and MARK
SMITH, Printers Engineers, all of the Guardian Printing Works, Manchester, in the
County of Lancaster do hereby declare the nature of the said invention to be as
follows:-
Our invention relates to improvements upon the Perfecting Letter Press printing
machinery for which Letters Patent were granted to us Numbered 16,201 dated the
10th day of December 1884-and the whole or part of our improvements are also
applicable to other Letter Press printing machines.
In our Perfecting Letter press printing machine the inking rollers could not with
the ordinary arrangement be always driven by the type table and to make the rack or
type table long enough to drive them by surface contact would be to increase the
length of the machine, and cause it to occupy more space and therefore in our perfect-
ing machine it is necessary for working the Inking rollers satisfactorily to gear them
up to move with the table and so that their surfaces when they come upon the inking
table will roll or rotate at the same surface speed as the latter.
Our invention consists in combining gearing with a rack under the Inking and type
table so that motion will be transmitted to a wheel which is oscillated as the table
reciprocates to and fro, which wheel drives the "riding" rollers which drive the inking
rollers by contact therewith.
::
There is a cam slot or screw slot on or attached to the wheel driving the riding
rollers which acts upon a bowl on a stud in a part connected with the "riding rollers
and gives them end movement to distribute the ink. Or screws or worms are secured
on the riding rollers which rotate in half screw nuts formed in or on brackets secured
to the framing.

page_text: The above described combination of gearing and arrangements is also applicable,
combined with other printing machines having a reciprocating inking table for
actuating the inking rollers.
Another improvement in our perfecting printing machine relates to the first gripping
cylinder for taking off the sheet when printed on one side and delivering it to the
board and mechanism for feeding the sheets to the impression cylinder reversed.
This first taking off cylinder is by preference made of iron and with grooves for
endless tapes which also pass round a roller having its bearings on the framing.
Combined with the tapes on the said first taking off cylinder there are other fapes on
two rollers having bearings in the framing and the sheet taken by the grippers of the
taking off cylinder is delivered and carried between the two sets of tapes to the re-
feeding board and its mechanism.
Between the first taking off cylinder and the roller for the tapes working upon it
there is another roller in bearings on the framing which is arranged
so that grooves in
it will come below and be clear of the tapes from the taking off cylinder while the
lower side of the upper set of tapes will pass over and press upon the upper surface of
this roller and by this arrangement the operating surface of tapes have more grip
upon the sheets to deliver them to the two sets of tapes carried on the refeeding board
the edge of the sheet being delivered directly between the rollers while the thin plate
described in our said specification on the end of the refeeding board is dispensed with.
One of the upper rollers for the upper set of tapes working in connection with the
first taking off cylinder is driven by a belt from a pulley on the end of a shaft forming
the centre or axis upon which the refeeding table oscillates and this last named shaft.
is driven by a belt from the first motion or other convenient constantly rotating shaft.
The taking off cylinders are rotated to make four revolutions to one of the impression
cylinder and the grippers are operated to take and deliver the sheet once for each
revolution of the impression cylinder.
Working loose on the shaft of the taking off cylinder there is a wheel which is
driven by a wheel on the axis of the impression cylinder to make three revolutions to
one of the latter.
The wheel loose on the shaft of the taking off cylinder is secured to a boss so as to
be adjustable thereon, and this boss also forms the bearing of the taking off cylinder
shaft and rotates in a bearing on the framing.
The inner end of the boss has two cam projections upon it against which the bowl on
the crank of the gripper shaft comes and passes over as the bowl overtakes in rotating
these projections once for each revolution of the impression cylinder, these cam surfaces
being set to cause the grippers of the taking off cylinder to open and close at the
proper times to receive and take hold of the sheet from the grippers of the impression
cylinder and release and deliver it to the tapes which carry it to the tapes of the re-
feeding board.
A similar arrangement is used for actuating the grippers of the second taking off
cylinder. This arrangement for actuating the grippers of taking off cylinders making
more revolutions than the impression cylinder (for instance where the taking off
cylinder makes two or three revolutions for one of the impression cylinder) is or may
be applied to and combined with two color and other printing machines.
Another improvement applicable to our perfecting and other Letter press printing
machines refers to arrangements for bringing the sheet on the oscillating refeeding or
automatic feeding board against an adjustable guage on one side of the table and
consists in arranging a bar to pass across the feeding board and which bar is carried
on the side framing of the machine.
On this bar there is an adjustable slide or carrier which has a pin or stud forming
the fulcrum of a lever or arm, the free end of which on its under side is faced with
india rubber and can come against the surface of the sheet on the feeding board.
The guage for the side of the sheet is adjustable on the feeding board and a pro-
jection from this guage comes against the under side of the arm and causes it to lift
with the board, while the board is rising and when the board descends the arm

page_text: descends until its rubber faced end rests upon the sheet, the continued descent of the
board causing the arm to come upon and draw the sheet and bring its edge against the
guage (should it be away therefrom) but the further descent of the board leaves a tail
from the fulcrum part of the arm against a stop which arrests further descent and the
arm is then held clear of the sheet.
Our invention further consists in the combination of the improvements hereinbefore
described with the mechanism described in the specification of our aforesaid Patent to
form a complete machine except where our present improvements are substituted for
parts of those described in the specification of our aforesaid Patent and also to combine
in the same complete machine as above described the improvements described in a
Provisional Specification of an application for Letters Patent made by us and
Numbered 13,055 and dated the 30th October 1885.
PETER J. LIVSEY,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or Applicable to Perfecting and other Letter
Press Printing Machines.
We JOHN HENRY BUXTON, Newspaper Proprietor, DAVIES BRAITHWAITE and
MARK SMITH Printers Engineers, all of the Guardian Printing Works, Manchester,
in the County of Lancaster, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
Our invention relates to improvements upon the Perfecting Letter Press printing
Machinery for which Letters Patent were granted to us Numbered 16,201 dated the
10th day of December 1884, and the whole or part of our improvements are also
applicable to other Letter press printing machines.
In our perfecting Letterpress printing machine the inking rollers could not with
the ordinary arrangement be always driven by the type table and to make the rack
or type table long enough to drive them by surface contact would be to increase the
length of the Machine, and cause it to occupy more space and therefore in our
perfecting machine it is necessary for working the Inking rollers satisfactorily to
gear them up to move with the table and so that their surfaces when they come
upon the inking table will roll or rotate at the same surface speed as the latter.
Our invention consists in combining, gearing with a rack under the Inking and
type table so that motion will be transmitted to a wheel which is oscillated as the
table reciprocates to and fro, which wheel drives the "riding" rollers which drive the
inking rollers by contact therewith.
There is a cam slot or screw slot on or attached to the wheel driving the riding
rollers which acts upon a bowl on a stud in a part connected with the riding
rollers and gives them end movement to distribute the ink. Or screws or worms are
secured on the riding rollers which rotate in screw nuts hall screw nuts formed in or
on brackets or hearings secured to the framing.
The above described combinations of gearing and arrangements is also applicable,
combined with other printing machines having a reciprocating inking table for
actuating the inking rollers.
Another improvement in our perfecting printing machine relates to the first
gripping cylinder for taking off the sheet when printed on one side and delivering it
to the board and mechanism for feeding the sheets to the impression cylinder
reversed.
This first taking off cylinder is by preference made of iron and with grooves for
endless tapes which also pass round a roller having its bearings on the framing.
Combined with the tapes on the said first taking off cylinder there are other tapes
on two rollers having bearings in the framing and the sheet taken by the grippers of
the taking off cylinder is delivered and carried between the two sets of tapes to the
refeeding board and its mechanism.

page_text: Between the first taking off cylinder and the roller for the tapes working upon it
there is another roller in hearings on the framing which is arranged so that grooves
in it will come below and be clear of the tapes from the taking off cylinder while the
lower side of the upper set of tapes will pass over and press upon the upper surface of
this roller, and by this arrangement the operating surface of the tapes have more grip
upon the sheets to deliver them to the two sets of tapes carried on the refeeding board
the edge of the sheet being delivered directly between the rollers while the thin plate
described in our said Specification on the end of the refeeding board is dispensed
with.
One of the upper rollers for the upper set of tapes working in connection with the
first taking off cylinder is driven by a helt from a pulley on the end of a shaft forming
the centre or axis upon which the refeeding table oscillates and this last muned shaft
is driven by a belt from the first motion or other convenient. constantly rotating
shaft.
The taking off cylinders are rotated to make four revolutions to one of the
impression cylinder and the grippers are operated to take and deliver the sheet once
for each revolution of the impression cylinder.
Working loose on the shaft of the faking off cylinder there is a wheel which is
driven by wheel on the axis of the impression cylinder to make three revolutions to
one of the latter.
The wheel loose on the shaft of the taking off cylinder is secured to a hoss so as to
be adjustable thereon, and this boss also forms the hearing of the taking off cylinder
shaft and rotates in a bearing on the framing.
The inner end of the boss has two cam projections upon it or they are on a part
adjustable on the boss against which the bowl on the crank of the gripper shaft comes
and passes over as the bowl carried round by the cylinder overtakes these projections
once for each revolution of the impression cylinder, these cam surfaces being set or
adjusted to cause the grippers of the taking off cylinder to open and close at the
proper times to receive and take hold of the sheet from the grippers of the impression
cylinder, and release and deliver it to the tapes which carry it to the tapes of the
refeeding board.
A similar arrangement is used for actuating the grippers of the second taking off
cylinder.
This arrangement for actuating the grippers of taking off cylinders making more
revolutions than the impression cylinder (for instance where the taking off cylinder
makes two or three revolutions for one of the impression cylinder) is or may be
applied to and combined with two color and other printing machines.
Another improvement applicable to our perfecting and other Letter press printing
machines refers to arrangements for bringing the sheet on the oscillating refeeding or
automatic feeding board against an adjustable guage on one side of the table and
consists in arranging a bar to pass across the feeding board and which bar is carried
on the side framing of the machine.
On this bar there is an adjustable slide or carrier which has a pin or stud forming
the fulcrum of a lever or arin, the free end of which on its under side is faced with
india rubber and can come against the surface of the sheet on the feeding board.
The guage for the side of the sheet is adjustable on the feeding board and a
projection from this guage comes against the under side of the arm and causes it to
lift with the board, while the board is rising and when the board descends the arm
descends until its rubber faced end rests upon the sheet the continued descent of the
board causing the arm to come upon and draw the sheet and bring its edge against
the guage (should it be away therefrom) but the further descent of the board leaves a
tail from the fulcrum part of the arm against a stop which arrests further descent and
the arm is then held clear of the sheet.
Our invention further consists in the combination of the improvements herein before
described with the mechanism described in the specification of our aforesaid Patent
to form a complete machine except where our present improvements are substituted
for parts of those described in the specification of our aforesaid Patent.

page_text: Fig. 1 a side elevation of our
mproved perfecting letter press printing machme
on the driving side with the driving pulleys and belt guide and other parts omitted.
Fig. 2 is an elevation thereof at the driving end with the second taking off cylinder
and the fly," Ink supplying and other parts omitted.
::
Fig. 3 is a longitudinal section, and elevation taken in about a line A A fig. 4.
Fig. 4 is a plan section taken below a line B, B, fig. 1.
Fig. 5 is an enlarged longitudinal section in elevation of the impression, and taking
off cylinders, refeeding board and connected parts.
Fig. 6 is a detached view of the parts shown in fig. 5 but at a right angle thereto for
drawing the edge of the sheet against a guage on the refeeding board.
Fig. 7 is an enlarged plan view of the refeeding board and of some of the
mechanism connected therewith, and also showing a plan view of the mechanism
illustrated by fig. 6.
Fig. 8 is a detached enlarged elevation of the mechanism for driving the taking off
cylinders from the impression cylinder shaft and also showing parts connected with
the refeeding board..
Fig. 9 is a view of the parts shown by fig. 8 at a right angle thereto, also showing
parts of the impression and one of the taking off cylinders and part of the mechanism
of the refeeding board.
Fig. 10 is a detached enlarged side elevation showing the mechanism for stopping
the impression cylinder and the refeeding board and fig. 11 is a view of some of the
parts shown by fig. 10 but at a right angle thereto.
Fig. 12 is a detached enlarged view of part of the inking rollers and connected
parts for actuating them.
Fig. 13 is a view looking upon the side of one end of the impression cylinder to
show mode of applying the spring to the gripper shafts.
Fig. 14 is an enlarged elevation of parts for arresting the motion and momentum of
the impression cylinder.
Fig. 15 is an end elevation to illustrate the mode of operating the grippers of the
impression cylinder.
The mechanism working the table to and fro and of giving motion to the im-
pression cylinder is similar to that used in the well known Wharfdale printing
machine.
a is the first motion shaft, the fast and loose driving pulleys a not shown in fig. I
but shown in fig. 2-The first motion shaft a is in suitable bearings on the framing
and has a fly wheel a and a³ at each end to give momentum and for convenience of
turning the shaft by hand when required.
The shaft a has two spur pinions at upon it each of which gears with a corres-
ponding spur wheel cone wheel on the end of a shaft c¹ the other on the end of a
shaft which shafts are in suitable bearings as best shown in fig. 4.
The two spur wheels e are connected by a crank pin e³ to which one end of a con-
necting rod is attached, the other end of which forms the bearing for a shaft c
which can rotate freely therein.
On each end of the shaft two spur wheels and c' are secured, and the smaller of
these wheels e (each having a flange on its edge) at their lower sides rest and run
upon and gear
with two toothed racks e secured upon and in the lengthway of the
framing as shown in fig. 4.
The upper sides of the two large spur wheels c' each gear with a rack d¹ formed
upon or secured to the under side of the reciprocating table d.
By the use of two pairs of two wheels and c' the motion is multiplied, but in
some cases only one pair of wheels c is used the upper sides of the wheels c in such
case gearing with the racks on the under side of the table.
The upper side of the table d carries the type or form from which the impression
is taken, and the inking beds or surfaces d².
In the lengthway of the table d there are two or more rails or beams carried by
the framing four rails being shown in fig. 2.
The upper edges of these rails are planed straight and have each a flange or rib on

page_text: each edge and in the channel thus formed on the upper face of the rails &ª a series of
rollers d³ work to and fro and are guided by the said flanges.
Each of these rollers (shown in figs. 2 and 3) has a pivot at each end which has a
bearing in a bar on each side of the rollers, which connecting bars d keep the
rollers at the proper distance apart and cause them to move simultaneously to and fro.
The table rests and rolls upon these sets of rollers (3) and the table d is kept
laterally in position by the edges of the side frames fitting close to the edges of the
table as shown in fig. 2.
There is a toothed rack d upon the upper side of the table d on each side of it each
of which racks gears with a spur wheel on the axis of the impression cylinder e at each
end thereof.
One wheel is fast on the axis e* and the other is loose and free to rotate upon
the axis of the impression cylinder e.
The teeth of the fast wheel e which would come opposite to and gear with the
rack for it on that side of the table when the impression cylinder e has stopped
are removed or cut away (see fig. 15) so that the rack on that side can make its back
stroke when the wheel e and impression cylinder e are stationary consequently this
fast wheel e only assists to drive the impression cylinder when it is to be rotated.
The wheel loose on the shaft of the impression cylinder e is always in gear with
the rack driving it, and thus this wheel is constantly oscillated on the shaft by the
to and fro motion of the table making a back oscillation when the impression cylinder is
stationary and driving it round and moving with it in the forward or printing
oscillation.
The outside end view of the loose wheel is shown in fig. 10.
There is a stud in its inner face opposite that end of the impression cylinder that
forms the fulerum for a two armed lever one arm acting as a pawl.
The other or short arm is acted upon by the one end of an helical spring
having its abutment on a box or projection" on the inner face of the wheel e² which
spring when at liberty forces the short arm against a stop, as shown in fig. 10
also formed or fixed in the inner face of the disc of the wheel e².
When in the position shown it is against a stop or projection upon the end of
the impression cylinder e, and consequently when the wheel e² oscillates in the
direction shown by the arrow on fig. 10 the impression cylinder e is carried round
with it and when the wheel begins its reverse oscillation, the impression cylinder e
is left standing (being held as hereinafter explained) as the end of the arm or pawl
withdraws from the stop and when it has made a complete revolution backwards
the pawl in passing the stop lifts over it, the spring giving way, and then
forces the arm down again in front of the stop ready to rotate it again when
making the forward or printing oscillation.
All the parts to inclusive are shown in dotted line in fig. 10 being behind the
dise part of the wheel and between it and the end of the impression cylinder.
It will be understood that the table makes a stroke in each direction long enough
to give the wheel one complete revolution.
In the end of the arm or pawl there is a stud that comes through a slot ƒ” in the
dise part of the wheel e and on this stud a bowl is placed, which bowl will come
opposite a segment upon the upper end of a rod sliding vertically in guides upon
the framing.
The lower end of this rod is jointed to an arın fx secured on a short shaft f
which has its bearings in the side frame and upon the outer end of this short shaft a
lever handle is secured for oscillating the short shaft.
There is also a disc 13 (shown in dotted line) secured on the short shaft with
curved notches in its edge, into which notches the rounded end of a pawl can enter
which pawl is jointed upon a stud secured in the side framing and this pawl is pressed
towards the edge of the disc by a springs arranged in any convenient manner so
that the end of the pawl enters one notch or the other and holds the disc in
such positions, so that the short shaft" cannot move until some sufficient force is
applied to the lever handle to overcome the pressure of the spring".

page_text: It is by this lever handle that the rotation of the impression cylinder e is stopped
after it has completed its revolution, or in other words, when the impression cylinder
is stationary it can be prevented from starting again when the lever handle is in
one position, and it is allowed to be continually rotated and stopped by each double
reciprocation of the table d, when the handle 12 is in the other position.
But when the impression cylinder e is stopped by this handle the table may
continue its reciprocations.
The impression cylinder e is stopped by depressing the handle end of the lever 1
and bringing the segmental part of the rod high enough to be in the way of the
bowl on the arm which is thus lifted against the action of the spring and the
end of the arm or pawl is thereby prevented from coming against the projection /*
on the impression cylinder and taking it round.
The momentum of the impression cylinder e is absorbed and it is stopped by the
arrangements to be next described, which are shown on fig. 1 and by an enlarged
detached view fig. 14.
On the end of the shaft which makes one revolution for each reciprocation of the
table d, a cam is fixed to act upon a bowl on a stud in the end of a beam lever g
having its fulcrum on a stud in the framing at g (best seen in fig. 4).
The middle and fulerum part of this lever g is shown in fig. 1, the ends of the lever
being supposed broken away so as to show other parts more clearly, but a part of the
extreme end of the beam lever is shown in fig. I where it is connected with the
lower end of a vertical rod g³ which passes freely through a hole in its end (see fig. 4).
The upper end of this rod is connected with a segmental party which forms a brake
surface to act upon the edge of a brake wheel g fast on the shaft e* of the impres-
sion cylinder e
This brake segment is also jointed with one end of an arm g" which has its
Tulerum upon a stud secured in the framing, and thus guides the movements of the
upper end of the rod g³ and brake segment g
On the vertical rod there is a helical spring or springs at the upper end the
spring abuts against an adjustable collar on the rod g³, and at the lower end
the spring abuts against the upper side of the end of the lever g'.
There are screw nuts upon the lower end of the rod g³ to resist and adjust the
tension of the spring or springs. It will now be seen that the cam g causes the lever gl
to lift, the rod g³ and force the brake surface g against the rim of the wheel g² and
the spring gives way when the brake segment is against the rim of the wheel, the
lower end of the rod g³ then sliding through the hole in the end of the beam lever g'.
This brake absorbs the greater part of the rotary momentum of the cylinder and
connected parts, when it is stopped after each revolution.
There is a projection g³ upon the inner side of the rim of the brake wheel gagainst
which the end of a pawl h comes when the cylinder e has completed its revolution to
prevent rebound.
This pawl is jointed on a stud on the framing and has an arm which is
jointed to one end of a rod 3 the other end of which slides through a hole in a stud hª
secured in the framing and upon the rod ³ there is an helical spring abutting at
one end against the guiding stud ht for the rod ³ and at the other end against a collar
on the rod h³.
The projection go on the brake wheel depresses the pawl against the action of
the spring the pawl allowing the projection to pass in one direction but prevents
return motion or rebound, as the spring then brings the end of the pawl h against
one side of the projection g³.
There is a stud in the side frame which acts as a stop to prevent the spring /
from pushing the arm h² too far, and thus lifting the end of the pawl two high.
The shock caused by suddenly arresting the rotation of the impression cylinder is
taken by a buffer rod i one end of which slides through a hole in a stud oscillating
in hearings on the framing the other end of which rod has a slot in the lengthway of
the rod which is connected with the brake segment y so that it can slide endways to
some extent.

page_text: On the rod a spring or springs is or are placed one end abutting against the
swivel stud through which the rod slides and the other end of the spring abuts
against a collar on the rod i.
There are screw nuts on the end of the rod near the swivel stud, to adjust and resist
the tension of the springs.
That end of the rod connected with the brake segment grises and falls with it
and when the latter is lifted that end of the rod i comes in the way of the projection g³
on the brake wheel, and arrests its motion thus forming an elastic stop which is
removed when the segment brake is lowered from the brake wheel which is done by
the action of the cam y just before the next forward rotation of the cylinder e begins.
The mechanism for supplying ink to the ink beds d² on the reciprocating table dis
similar to that of ordinary arrangements and they are the same for each end of the
machine consisting of a roller in suitable bearings on the side frames having a
ratchet wheel secured upon one end of the shaft and a lever oscillating upon the shaft
of the roller having a ratchet pawl jointed to it working upon the ratchet, which can
be turned over so as not to take hold of the teeth when the roller is not to he
rotated.
The lever carrying the pawl is jointed with one end of a rod the other end of which
is jointed with a crank pin on the back of the disc of a cam on a cross shaft
which is in suitable bearings upon the framing (see fig. 4 and fig: 3).
Across the framing and secured thereto there is an angle bar which supports
another angle bar which can be adjusted to and from the roller by set screws *.
The ink is placed in the space formed between this angle bar and the roller j.
There is another roller under the roller and parallel thereto which has its end
pivots in bearings formed in the ends of arms secured on a cross shaft in suitable
bearings on the side framing.
This shaft has an arm
the joint pin for one end of a rod
beam lever having its fulerun on a
from it which is slotted for an adjustable stud that forms
the other end of which is jointed to one end of a
stud at j* on the framing, the other end of the
lever has a stud for a bowl which is actuated by the cam 10 on the shaft A.
This arrangement brings the roller against the roller j, when the inking bed is
away and then moves it to come upon and against the surface of the inking bed d²
when it comes under the roller.
7 are distributing rollers having bearings on the side framing arranged to roll upon
the inking bed in the ordinary manner.
Pare rollers which take the ink from the inking bed d², and supply it to the face of
the type on the table.
Above the inking rollers are two or more riding rollers which rest, or ride upon,
and rotate in contact with the inking rollers, one riding roller coming between two
inking rollers.
Two of the riding rollers are geared up with the table d by a spur wheel on a
short shaft in suitable bearings on the side frame (see fig. 12 and also fig. 1) which
spur wheeel gears with a toothed rack secured on the under side of the table near its
edge.
On the short shaft and outside the framing there is another spur wheel which
gears with a train of carrier wheels and drives a wheel on a stud 18 secured in the
framing which latter wheel gears with long pinions one of which is fast on the shaft
of two of the riding rollers.
The long toothed pinion permits the riding rollers to move endways and still keep
in gear with the driving wheel 1.
On the side of the spur wheel driving the riding rollers there is a cam * secured
which has a cam groove that acis upon a bowl on a stud on the underside of a lever [10
having its fulcrum on a bracket. secured to the framing
On the upper side of this lever 110 there are studs each for a bowl, each of which
bowls works between flanges on pulleys 12 fast on the ends of the riding rollers (2
and thus as the lever oscillates it slides the riding rollers endways to and fro.
Instead of spur gearing as shown in fig. 12 a shaft and bevel wheels is or may be
B

page_text: used, and the spur wheel driving the riding rollers may make several revolutions each
way, and in place of the cam 1x there is or may be a pulley with a deep screw
V groove or thread, formed in its periphery and in place of the pulley 1 there are
pulleys with V projections to fit the V screw threads formed on the pulley by which
arrangement the riding rollers are moved to and fro end ways.
The journal part of the riding rollers at one end having the pinions ( upon them
are or may be screw threaded, and to fit screw threads in their bearings at that end,
(see dotted lines representing screw threads on fig. 12) so that as the rollers rotate
they will move endways.
The screw threads on one roller are or may also be reversed to those of the other,
so that one roller will be moving endways in one direction while the other is moving
in the opposite direction.
There is a shaft on one side of the machine in suitable bearings, which is driven
by bevel wheels from the crank pin wheel shaft c² and this shaft drives by bevel wheels
the cross shaft hereinbefore referred to.
These shafts and are shown most clearly in fig. 4 and in fig. 1 and are for cams
hereinafter referred to.
7 is a board for holding paper to be printed hinged to the bracket at one end and
resting when down as shown on the upper ends of the parts forming the slots, guides,
or bearings for the riding and inking rollers.
is the feeding board secured at one side on a shafi. ³having bearings on the side
framing.
The free end of the feeding board can rise and fall and when it descends to its lowest
position the points of adjusting screws (one on each side) passing through projections
from its sides, rest upon the side framing.
The feeding board is lifted by vertical rods on each side of the machine which
rods at their upper ends slide through guides in brackets on the framing.
The lower ends of the two vertical rods (one on each side) are each jointed to an
arm secured on a cross shaft in suitable bearings, across the framing, and this
shaft is oscillated to lift and lower the feeding board by a cam secured on the
shaft which acts upon a bowl on a stud in the end of an arm secured upon the
cross shaft to.
The board for receiving the printed sheets is hinged and is supported in like
manner to the board t.
Upon the board the printed sheets are piled by the oscillating fly which is of an
ordinary kind formed by a shaft across the machine and in suitable bearings on the
side frames.
This shaft m has thin blades attached to it, and oscillates so as to bring the blades
into a position to receive the printed sheet from the inpes working upon the taking
off cylinder and a roller a (the thin blades coming against the shaft of the latter)
and then turns each sheet over and thus piles the sheets on the receiving board .
There is a pinion on the end of the fly-shaft which gears with a toothed
segment m³ on the end of a beam lever m having its fulcrum on a stud secured in
the framing the lower arm of the lever m having a stud in it for a bowl coming
against the face of the cam m secured on the shaft k. The cam moves the fly one
way to the position to receive the sheet, and a weight on an arm from the lever m²
or a spring moves it the other way.
The shaft of the impression cylinder e is in steps or brasses that are fitted to slide
vertically in an opening or slot in each stand secured to the side frames, and the
steps or brasses are adjusted and held down by a set screw one on each side, the
lower brass or bearing on each side being held up by a powerful spring of resting upon
the bottom of the slot in the stand.
The impression cylindrr e is shown in cross section by fig. 3, but more clearly in
fig. 5.
It has two shafts parallel to its axis in bearings at each end of the cylinder, which
shafts have grippers e secured to them by set screws as shown, and the points of these
grippers press upon the edge of the recesses in the cylinder, as shown, the shafts

page_text: being acted upon by helical springs one end of the spring or springs being attached to
the end of the cylinder e the spring being coiled round the shaft and the other end
is secured to a collar e fast on the gripper shaft to keep the grippers closed when not
otherwise acted upon (see fig. 13)-But any other arrangements of springs may
be used for the purpose.
The impression surface of the cylinder is covered with ordinary priniers blanket one
end of which is stitched on a wire which is hooked under pins shown in fig. 5, it
is then taken partly round the cylinder and its other end is secured by a wire in a
groove in and to a shaft ein suitable bearings on the ends of the cylinder by which
shaft the slack is wound up and the blanket is drawn fight.
There is a ratchet wheel on the end of the shaft e" and a pawl jointed on the
cylinder end to prevent the shaft from rotating backwards and the blanket unwinding.
There is a blanket and shaft e" for each of the two impression surfaces of the cylinder
which rotates in the direction pointed by the arrow on fig. 5.
The gripper shafts have each an arm on the outside end of the wheel e¹ shown
best in figs. 8 and 9 also in fig. 15 and the arm for one shaft has a stud for a bowl e
and the arm for the other shaft has a bowl and both these bowls are acted upon io
open the grippers by parts and P secured on a rod P³ arranged in guides to slide
vertically.
The lower end of the rod is jointed to one arm of a bell crank lever P having its
fulerum P on the framing the other arm of the lever carrying a stud for a bowl acted
upon by a cam Pº on the shaft k. This cam P is shaped to act in a line with the shaft.k
to lift to hold open the grippers on the cylinder e to allow the edges of the sheets to be
fed to them and then lowered to allow the grippers to close by the action of the springs
on the shaft e³ before referred to and thus grip the edges of the sheets.
One taking off cylinder n for taking the perfected sheet from the cylinder e, has been
referred to. Its shaft is mounted in bearings on brackets or stands secured on the
side frames.
The shaft of the cylinder 7 which takes the sheet from the cylinder e first printed
on one side is also in bearings on the side framing,
Each taking off gripper cylinder and has a gripper shaft n³ and q¹ and
grippers and 72 respectively arranged same as those on the cylinder e and the
gripper shafts have each arms on their ends carrying each a stud for a bowl n° and q
respectively.
"
The taking off cylinders and 7 are one fourth the diameter of the impression
cylinder e and they are geared up therewith by a spur wheel keyed fast on the shaft ex
of the impression cylinder which spur wheel gears, with a spur wheel and fast
upon the shaft of each taking off cylinder and y to make four turns to each revolution
of the impression cylinder e.
R
The taking off cylinders are adjusted in gear with the impression cylinder so that the
printed sheet shall be transferred from one set of grippers to the other, when the points
of the grippers on the cylinder e, and those on the taking off cylinders and
are in
a line drawn from their respective axes to the axis of the impression cylinders in other
words, when the grippers come opposite each other and this only occurs at each fourth
revolution of the taking off gylinders.
The grippers of both taking off cylinders are actuated in like manner and the
description of one will serve for both.
There is a spur wheel loose on the shaft
sheet printed on one side is attached to a boss
of the cylinder say for taking off the
that works in a bearing on the framing
and this boss passes through the side frame and forms a bearing for that end of the
taking off cylinder shaft.
This spur wheel is in gear with a spur wheel
shaft or on the side of the spur wheel r.
fast on the impression cylinder
The wheel is one third the diameter of the wheel and consequently makes three
revolutions for one of the cylinder e, and one point of the wheel will coincide with
a point on the wheel driving the taking off cylinder 7 once in every revolution of
the cylinder e

page_text: '
There is a cam on the boss of the wheel and this cam acts upon the bowl 7³ on
the arm upon the end of the gripper shaft to open and close the grippers.
It will be seen that if the cam were fixed and non-rotating the bowl upon the
arm of the gripper shaft would be acted upon at each revolution of the taking off
cylinder but it is only required to be acted upon at every fourth revolution of the
taking off cylinder and as the cam rotates with the taking off cylinder but slower, the
bowl of the gripper shaft of the taking off cylinder only overtakes the cam at
each fourth revolution of the taking off cylinder, then it operates as if relatively
stationary to the bowl acted upon though the cam moves with it in the saine direction
but slower.
The time when this cam is to act upon the bow! is adjusted by moving the boss
in the wheel, and then securing it thereto.
There are two projections on the cam one acts to open the grippers of the taking
off cylinder 7 to receive the sheet from the grippers of the impression cylinder e and
then close, and the other projection acts to open the grippers to release the sheet when
taken by the tapes 7 and 7 and then close.
When the grippers of the taking off cylinders are closing upon the edges of the
sheets the grippers upon the cylinder e are opening and releasing their hold.
This is effected in respect of the grippers on the cylinder e by stationary cams
secured adjustably upon the inside of the stands 12 and this is best illustrated by
fig. 15.
One cam pieces acts upon the bowl on the arm of one gripper shaft which grips
the sheet printed
on one side, the other cam piece s' acts upon the bowl e on the
arm of the other gripper shaft which grips the unprinted sheet fed from the
board 2.
It will be seen that one bowl is moved in a direction from the axis of the cylinder e
to open the grippers, and that the other bowl is moved in a direction towards the axis
of the cylinder e to open the grippers and thus each fixed cams and only acts upon
the gripper intended to be operated by it, and does not come in the way or act upon the
bowl for the other gripper, as the impression cylinder rotates.
Upon the taking off cylinder y there are a series of endless tapes
may work in slight grooves formed in the surface of the cylinder y.
These tapes pass over a roller in bearings on the side frames
rotated by the driving friction of the tapes.
which work or
which roller is
The tapes also pass over a roller in bearings on the side frames, which roller has
grooves in it for the tapes to pass, the periphery of the roller being slightly above
the upper surface of the upper side of the tapes passing to the roller
Above the taking off cylinder there are other endless tapes 7 working at one end
on flanged pulleys on a shaft 7 (see also fig. 7) and on a roller both rollers being in
suitable bearings on the side framing.
The rollers and are geared together by spur wheels 7 at one end (see fig. 7)
and the roller has a pulley 7" upon its end for a crossed belt 7" which receives
rotary motion from a pulley on a shaft upon which the refeeding board, oscillates as
hereinafter described.
·
Each sheet gripped by the taking off cylinder is released when its edge conies
between the tapes 7 upon it, and the lower side of the tapes above it, these tapes
propelling the sheet forward after it is released to the tapes of the refeeding board.
The roller helps to propel the sheets forward.
The refeeding board is formed by two arms one on each side to which arms the
board is secured, these two arms have bosses with holes in them and pass upon the
shaft in suitable bearings in the framing, and the board thus oscillates on this
shaft as an axis..
There is a shaft in suitable bearings on the side framing, which has two
arms upon it one on each side of the board, which arms have each a stud for
a bowl and each bowl acis against a plate for it secured on the underside of the
board
.
On one end of the shaft outside the side framing there is an arm secured (seć

page_text: figs. and 8) to which the upper end of a rod u is jointed the lower end of the rod
being jointed to one arm of a bell crank lever having its fulcrum upon a stud u* on
the framing, the other arm of the lever has a long stud in it for a bowl which can
be slided to and fro on the stud. The bowl e¹ is acted upon by a came on the shaft k
and in the line thereof, and this gives motion to oscillate the refeeding board up and
down so that it can be brought into the position shown in fig. 5 and fig. 8 in which the
rollers and carried on the board are shown in the position to receive the sheet
printed on one side, and then lowered to a position shown in fig. 3 to feed the sheet
to the grippers on the impression cylinder e.
The shaft upon which the refeeding board oscillates is a roller or has pulleys
upon it for endless tapes w, which at the other end of the board work upon a roller w
in bearings upon the side frames or arms of the board which have also at each end
bearings for two upper rollers and having endless tapes or strings working
upon them.
The rollers and at the free end of the board are geared together at one end by
spur wheels
The shaft has a pulley on one end, which is driven by a crossed belt (see
fig. 1) from a pulley on the first motion shaft a.
The sides of the tapes w and we on the board which come and move together above
the board, carry the sheet from.the rollers and q until the forward edge of the sheet
comes against an adjustable stop that passes across the board u and is secured by a
set screw and nut on each side to a slotted plate 3 secured on each side of the
board, the screw on each side passing through the slot in the plate and into the
screw nut in a recess or slot under the plate.
This adjustable guage has gaps or slots in its under edge for those sides of the
tapes and to pass through which come together.
The stop arrests the sheet at the required point to allow the tail of the sheet to
project to the required extent from the board to be fed to the grippers on the
impression cylinder e, when the board is lowered for that purpose.
Upon the side frames two brackets are secured to carry the ends of a cross bar .el
upon which a slide a can be adjusted and secured by a screw This slide has a
stud in one side which forms the fulcrum for a lever . which leyer has an arme
that when the lever has fallen to the required extent comes against a stop pin
-side of the slide a².
in the
and the
The lever has a piece which can be adjusted and secured by a screw
under side of this piece is shod with india rubber cemented or otherwise secured to it.
This lever works between forks in a bracket * adjustable and secured to the
hoard which acts as a guage against which the edge of the sheet is drawn.
This bracket or guage has an upward projection which comes under the
lever so that when the refeeding board lifts, the lever is lifted and its end is thus
raised clear of the surface of the board u and this allows the sheet to pass on to the
board without obstruction, but when the board lowers after the sheet has arrived
against the stop, the end of the lever comes upon the paper upon the board w
and as it continues to descend the are in which the end of the lever moves, causes
it to draw the paper against the guage or bracket, and just before the refeeding
board arrives at its lowest position, the arm from the lever comes against the
pinz so that the end of the lever is also clear of the sheet when it is passing from
the board..
When the impression cylinder e is stopped the same handle 12 that stops it, puts in
operation mechanism to stop the up and down oscillation of the refeeding board u when
in its lowest position.
This mechanism is shown in fig. 1 and on an enlarged scale by figs. 10 and 11.
The lise secured on the axis of the hand lever hereinbefore referred to, has a
stud in it to which one end of a rod y is jointed the other end of which is jointed with
an army fast on a shaft y passing across the machine having bearings in brackets
on the framing, on this shaft y there is another army which acts upon a groove (see
fig. 10) in a bowl y' which can both rotate and slide.endways on a study secured in

page_text: the arm of a lever y" having its futerum on a stud y' in a bracket secured to the side
framing.
This lever 7 has a projection 78 curved to a radius from the centre of the hell
.crank lever and this curved projection y engages with a groove in a bowl
rotating and sliding to and fro on a stud ² secured in the arm of the bell crank
lever so that when the lever y' is oscillated the bowl will be slided to and fro on
the stud 2.
The cam surface acting upon the bowl of the lever moves it to and fro in the
direction of the lengthway of the shaft &, but upon the back of the disc for this came
there is a cam surface ex formed that will act upon the bowl y carried on the stud in
the lever and move the latter from the shaft k.
The bowl is drawn towards the came by a spring secured to the lever y at
one end and at the other end to a hook or other fastening on any convenient part
of the framing.
But in place of this spring there may be an helical spring upon the stud u¹
acting to push the howl towards the cam r.
When the parts are in the position in which they are shown, the came is oscillating
the refeeding board up and down but when the handle is depressed to stop the
impression cylinder e the bowl is slided upon its pin to come in the way of the
cam and this pushes the lever y back and withdraws the bowl e' from the action of
the came and thus stops the oscillation of the refeeding board .
The form of type on the table d nearest the driving end of the machine is inked ai
that end of the machine and prints the first side of the sheet fed to the machine the
other form of type nearest the other end of the machine is inked at that end and prints
the second or perfecting impression. .
and
The sheet first fed is printed on one side and is taken off by the cylinder
delivered and received on to the refeeding board u at the first rotation of the impression
cylinder e and during the time the table d is making its back stroke while the
impression cylinder e is stationary, the refeeding board is moved from its highest
position to its lowest position where it presents the ends of the sheet projecting over
its edge to the grippers on the impression cylinder e so that at its next rotation this
sheet is drawn from the refeeding hoard and printed and delivered to the taking off
cylinder which delivers, and by means of the tapes a pushes it on to the blades of
the fly which then oscillates during the back reciprocation of the table d while the
impression cylinder is stationary and lays the sheet on the receiving board tº the
second printed side downwards.
In every succeeding rotation of the impression cylinder after the first sheet fed, a
sheet is printed on both sides at each rotation of the impression cylinder.
In applying the gearing and arrangements hereinbefore described for actuating the
grippers of the taking off cylinders to actuate the taking off cylinder of two color
printing machines, it is only necessary to arrange and gear the wheel driving the cam
for actuating the grippers of the taking off cylinder of the two color machines as
hereinbefore described, and to make say one revolution less than one complete cycle
of revolutions of the taking off cylinder, so that if the taking off cylinder of a two
color printing machine makes four revolutions to two of the impression cylinder for
each cycle or complete reciprocation to and fro of the type bed, then the cam is geared
to make three revolutions in the same time and is arranged accordingly..
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare that what we claim is.
1. The combination of a toothed rack, under the reciprocating table for the type
and inking Bed-or beds of letter press printing machines with gearing for rotating
the riding rollers, and thereby the type inking rollers together with either of the
arrangements hereinbefore described for giving end motion to the riding rollers (*)
substantially as herein before described and illustrated by the drawings.
2. The combination and arrangement of the first taking off cylinder (7) with tapes
.and rollers combined therewith for delivering, the sheet printed on one side to the

page_text: mechanism of the refeeding board, substantially as hereinbefore described and
illustrated by the drawings.
3. The arrangement and combination with cylinders having grippers for taking
sheets from the grippers of an impression cylinder, of a cam rotating concentrically
with the taking off cylinder for actuating the grippers thereof, such cam being rotatel
in the same direction as the taking off cylinder but at a different speed substantially
as hereinbefore described and illustrated by the drawings.
4. The combination with the refeeding board of mechanism for bringing the edge
of the sheet on the refeeding board against an adjustable side guage or stop thereon,
substantially as hereinbefore described and illustrated by the drawings.
5. The combination and arrangement of mechanism forming our perfecting letter
press printing machine substantially as hereinbefore described and illustrated by the
drawings, such combination claimed under this head including any one of the
alternative arrangements or combinations of mechanism hereinbefore described where
more than one combination or arrangement for the purpose is described.
PETER J. LIVSEY,
Agent.