Improvements in Relief Stamping and Printing Machines.
Year: 1899

page_text: Date of Application, 18th July, 1899
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PROVISIONAL SPECIFICATION.
Improvements in Relief Stamping and Printing Machines.
We, FRED WAITE, of The Lindens, Burras Lane, Otley, in the County of York,
Printer's Engineer, and WAITE & SAVILLE, LIMITED, of Falcon Works, Otley,
aforesaid, Printer's Engineers, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in relief stamping and printing
machines that is to say machines for printing in relief by means of an engraved
or similar die or plate.
To carry out our improvements we employ a reciprocating carriage fitted with
a die holder or carrier capable of being lifted on or in suitable guides to give the
impression and having springs or their equivalent to ensure its return. The
plate or die is fixed on said carrier and after being inked and wiped the carrier
is brought beneath an inverted bed or matrix and whilst in this position the
holder and plate are lifted to give the impression. To lift the carrier we employ
a vertical plunger or slide beneath lifted by two eccentrics or their equivalent
geared together one eccentric being mounted in bearings in the plunger or slide
and the other in the frame beneath. The lower eccentric is driven by a large
spur wheel.
To regulate the impression the inverted bed block is mounted in a vertical
guide and is adjusted by a wedge piece at the top and a screw mounted in the
guide and engages the wedge to facilitate adjusting and fixing it. The screw may
be provided with a locking device. A face plate is fixed in front of the guide
to secure the block in position.
The carriage is preferably reciprocated by a crank pin or eccentric stud on the
said spur wheel connected by a rod or rods to an arm or arms on a shaft behind
and imparts a rocking motion to it. This rocking shaft carries an arm or its
equivalent connected by a rod to an oscillating frame or its equivalent the top
of which is coupled to the carriage and a spring is introduced between the frame
and this rod so as to break the rigidity of the connection. The parts are so
arranged that when the carriage has reached its position beneath the bed the
arm of the rocking shaft is about to pass over the dead centre that is to say
the point where the motion of the carriage in relation to that of the arm is at
its minimum. The other crank is at the same time passing over its dead centre.
This causes a dwell at each end of the stroke of the carriage and at the printing
end this is augmented by the carriage being brought against a stop or stops and
the said spring is compressed by a slight further movement of the connecting rod.
To wipe the ink off the face of the plate it passes beneath a wiping pad under
which a web of paper is drawn by a pair of rollers one of which is actuated by a
pawl and ratchet or equivalent intermittent motion. The paper is supplied
from a roll carried in a frame pivoted on the driving roller shaft, and adjusted on
each side by screws in the main frame. The wiping pad is adjustably pivoted in
this frame and is covered with sheet rubber or an equivalent secured against ribs
at the back by clamping bars hinged to the back. The paper is supplied from a

page_text: roll and passes through a pair of tension rollers to the pad, on leaving which it
passes up to the uriving roller and is wound on to a roller above it frictionally
driven and mounted in arms pivoted to the frame.
The feed table is preferably removable and projects under the inverted bed and
is provided with a hole for the die to pass through. The table is mounted on
vertical slides lifted before each impression and afterwards lowered to allow the
sheet to be removed and another sheet to be fed.
To check the impression the part of the plunger actually engaging the plate
carrier fits telescopically into the plunger and rests upon a cross pin having
a flat side capable of being turned beneath the said part and lower it sufficiently
to prevent the impression being made.
Dated this 17th dow of Tu1 1900
COMPLETE SPECIFICATION.
Improvements in Relief Stamping and Printing Machines.
We, FRED WAITE, of The Lindens, Burras Lane, Otley, in the County of York,
Printer's Engineer, and WAITE & SAVILLE, LIMITED, of Falcon Works, Otley
aforesaid, Printer's Engineers, 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:-
This invention relates to improvements in relief stamping and printing
machines that is to say machines for printing in relief by means of an engraved
or similar die or plate.
To fully describe our invention, reference is made to the accompanying sheets
of drawings, forming a part of this specification, in which similar figures of
reference indicate corresponding parts in each of the views.
Figure 1, represents a front view of a stamping machine made in accordance
with our improvements.
Figure
other side.
is a view of one side of the machine and Figure 3, is a view of the
Figure 4, is a cross section of the machine showing certain of the parts.
The side frames 2 rigidly connected together are each made with a horizontal
guide 3 inside of which the reciprocating carriage 4 slides. The carriage 4
carries the die holder 5 in which the die 6 is fixed by the clamping screws 7.
Four studs 9 on the die holder project through the carriage and are fitted with
spiral springs 10 each of which tends to draw the holder 5 down on to its seat
upon the carriage. The holder 5 has a central projection 12 extending down
through an opening in the carriage towards the top 13 of the plunger frame 14
working in guide holes 15 in the top cross stay 16 and the bottom cross stay 17.
The frame 14 is raised to give the impression by the two eccentric rollers 8
and 18 geared together by their central teeth a. The upper roller 8 is mounted
in bearings 19 in the frame 14 and the lower roller is fixed on the main shaft 20
and slots 11 are made in the sides of the frame 14 for the shaft to pass through
into its bearings 21, in the side frames 2. Only one of the rollers 8 & 18 may be
eccentric. The shaft 20 is driven by its spur wheel 22 engaging the pinion 23
on the driving shaft 24 fitted with driving pulleys at one end and a fly wheel 27
at the other end. The end of the shaft carrying the driving pulleys is shown
broken away.
The impression plate 30 to which the "force” is fixed face downwards is formed

page_text: on or secured to the bottom of the vertical slide 31 tightly fitting in guides 32
in the cross piece 33 rigidly secured to the frames 2. The top of the slide 31
is inclined and bears against the wedge 34, the upper side of which rests against
the top 35 of the slot 36 formed in the cross piece 33. The screw 37 engaging
the wedge is confined longitudinally in a bearing in the cross piece 33 and is
provided with a hand wheel 38 by which it can be turned to move the wedge.
longitudinally to regulate the force of the impression.
A table bracket 40 is fixed on each side, one of which is intended to hold the
pile of paper to be printed, and the sheets can be placed on the other after
printing. The feed table 48 made of sheet metal is preferably removable and ·
is supported on each side upon arms 41 projecting from slide rods 56 sliding
at the top in eyes 57 and connected at the bottom to the ends of the levers 58.
projecting from the rocking shaft 59. The shaft 59 is rocked by its arm 60
engaging the cam 61 on the shaft 62 and the motion of the said shaft is so timed
and arranged that immediately before the die reaches the underside of the paper
to be printed the table is lifted so as to raise the paper against or almost against
the force before the die reaches it. A hole 49 Fig. 4 is made in the table large.
enough for the die to pass through. After the impression is made the table
is lowered sufficiently to leave ample room for a new sheet to be fed on to it
after the printed one has been removed. By letting the table remain up for
a slightly longer period than the die the table pulls the paper away from the..
die as the latter descends.
To reciprocate the carriage 4 the rocking shaft 63 is employed. This shaft
is rocked by its arm 64 connected by the rod 65 on the stud 66 in the face of
the wheel 22. The carriage is connected by the rod 67 to the arm 68 pivoted.
at 69 and the shaft 63 is connected to the arm 68 to vibrate it by the toggle
levers 70 and 71. The lever 70 is connected to the collar 29 on the lever 71 and
excepting for the pressure of the spring 28 against it this collar is free to slide
on the lever 71. The parts are so arranged that when the carriage reaches the
printing end of its stroke the toggle levers are about to pass the dead centre
that is to say approximately the position shown in the drawings and the stud 66
is also passing its dead centre. This causes a dwell at this end of the stroke of
the carriage and this dwell is prolonged by the carriage being brought against
a fixed stop 39 (Figure 4) and the further movement of the levers simply com-
presses the spring 28.
The frames 72 carrying the wipers 73 and the reel 74 of wiping paper 75
are pivoted upon the shaft 76 of the paper feeding roller 77 and are supported in
front by the two adjustable screws 78 fixed in the side frames. These screws are
provided to raise and lower the frame to regulate the position of the wiper
according to the thickness of the die. The wiper is pivoted in the frames by its
end pivots 79 and it is rigidly fixed on the frames in a horizontal position by the
set screws 80 on each side. The wiper is padded with any suitable material
which may be secured at the back by the clamping bars 81 and the paper 75
passes from the reel 74 down past the guide tension rods 82 and under the wiper,
then up between the feed roller 77 and the spring pressure rollers 83 and is
rewound on to the reel 84 carried in standards 85 secured to the side frames 2.
The reel 84 is frictionally driven in any convenient way so as to keep the paper
under a constant tension, and the feed roller shaft 76 is intermittently operated
by a suitably arranged pawl and ratchet.
To lift the frames 72 to raise the wiper and allow the carriage 4 to pass to
the inking device without the die touching the wiper we employ the fingers 86
upon the rocking shaft 88 to engage the anti-friction rollers 89 on the frame 72.
The rocking shaft 88 is actuated by its arm 90 connected by the rod 91 to the
arm 92 on the rocking shaft 93. Before the return stroke of the carriage the
wiper is lowered to wipe the die as it passes beneath.
The die is inked as it passes to and fro under the inking roller 94 on the
vibrating arms 95 on the rocking shaft 90. The inking roller is supplied with

page_text: ink in any convenient way, as for instance, it may be moved from the position
shown into contact with a ductor roller (revolving in an ink vessel) and back again
in the interval whilst the die carriage is not passing beneath it.
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. In a relief stamping and printing press, a die holder so arranged that it can
be lifted from beneath to lift the die to give the impression, in combination
with a rising and falling feed table having an opening large enough for the
die to pass through, substantially as herein shown and described and for the
purpose specified.
2. In a relief stamping and printing press, a die wiping device consisting of,
a wiper mounted in a frame pivoted concentrically with the shaft which drives
the roller feeding the wiping paper, and a paper supply reel mounted in bearings
in said frame, all arranged and operating substantially as herein shown and
described.
3. In a relief stamping and printing press, the combination with a liftable die
holder of means for lifting same consisting of two rolling faces geared to revolve
together one or both of which is eccentric, substantially as herein shown and
described and illustrated in the accompanying drawings.
4. In a relief stamping and printing press, the carriage reciprocating mechanism
consisting of the rocking shaft 63, the toggle levers 70 and 71, the spring 28,
and a stop to intercept the movement of the carriage, all arranged and operating
substantially as herein shown and described.
Dated this 16th day of May 1900.
DRACUP & NOWELL,
Patent Agents, Bradford.