Improvements in Pedal Printing. Machines.
Year: 1896

page_text: PROVISIONAL SEMUFFICATION.
Improvements in Pedal Printing. Machines.
I, JULES MICHAUD, of 96 Rue d'A'ssas, Paris, France, Engineer, do hereby
declare the nature of this invention' to be as follows:-
The present invention relates to the application of new means for enabling.
what are called photo-typic impressions to be produced on typographic pedal
machines.
The mechanisms by means of which I carry these improvements into effect
are illustrated in the accompanying sheets of drawings and are hereinafter
described.
This invention may be applied with the modifications which the mode of
construction may necessitate, to platen pedal machines of the different-constructions
in use.
In the machine represented in Figure 1 of the drawings the plate 1, is mounted
on a block 2 on which it is clamped as in flat photo-typic machines. The
block 2 carries trunnions which are received in the forked.supports.3. fixed to the
bed 4.
The block placed in its supports which the bolts 5 prevent it leaving, is held
at the lower part by a catch 6.
When it is necessary to damp the plate, it is only requisite to bear on the catch 6,
to raise the block, by causing it to turn round its trunnions, and to bring it to the
position 2 where it is rendered immovable by means of a part 7, articulated at 8,
which is brought to the position 7¹.
The plate in the position 1' is perfectly horizontal which permits of the damping
and also the inking by hand to be effected with the greatest facility.
For the damping and for the inking by hand I have adopted this arrangement
which as it carries the plate completely outside the frame of the machine permits
me to effect this without any inconvenience.
The bed 4 is fixed to a part 9 articulated at 10 and which receives a to and fro
movement from a connecting rod 11 which is attached at 12 to a crank-piu fixed
to the wheel 13.
The other extremity of the connecting rod 11 is attached to the. lever 33
mounted on the shaft 14 and made solid with two levers 15 serving to actuate the
inking rollers 16. All these parts are those of a press serving for typographic
impressions. The wheel 13 is driven by the pinion 17 which is keyed on the driving
shaft of the machine.
For each revolution of the wheel 13 the beam 9 which carries the bed has
therefore a to and fro movement during which the rollers 16 ink the plate.
A
The wheel 13 carries a cam 18 acting on a lever 19 mounted on the shaft 21.
The roller 22 of the lever 19 is engaged between the cheeks of the cam 18.
double lever 20 forming one with the shaft 21 acts on the platen 23 and brings its
plain surface to 23' at the moment when the printing part of the plate 1 partici-
pating in the movement of the beam 9 is brought to this same position 23¹. This
occurs at each revolution of the wheel 13.
For photo-typic impressions it is advisable to produce several inkings of the
plate before the printing of a sheet. This result is easily obtained on the machine

page_text: shown in the drawings; it possesses a lever by means of which the pressure may
be prevented from being exerted as many times as is desired, but in acting ou
this lever the movement of the platen is not prevented from being effected.
On the other hand it is necessary to act on the hand lever in one direction for
preventing the pressure, then in the other direction so that this may take place.
As for photo-typic impressions generally two complete inkings for one impres
sion will suffice, I have thought of suppressing the movements necessary for the
feeding so as to prevent the pressure by means of the ordinary lever. At the same
time succeed in obtaining for the feeding of the sheet double the time which
would be obtained in making use only of the interrupting pressure lever, for
producing the double contact desired; for this purpose the lever 19 has another
arm 24 to which is attached a connecting rod 25; the other end of the con-
necting rod 25 is attached to a two armed lever 26; the second arm of the
lever 26, which turns on the centre 28, carries a roller 27 on which acts a
cam 29.
The cam 29 is mounted on a wheel 30.
On the shaft of the wheel 13 is keyed a wheel 31 the diameter of which is half
that of the wheel 30.
The wheel 31 actuates the wheel 30 by means of the intermediate wheel 32.
If now the roller 22 on which acts the cam 18 is removed it will be seen that
the beam 9 will still have its to and fro movement imparted thereto at each
revolution of the wheel 13 and that for each of these movements the rollers will
ink the plate.
The platen 23 will no longer be actuated by the cam 18 but by the cam 29
through the intermediary of the lever 26 and of the connecting rod 25, but the
wheel 30 making only one revolution for every two revolutions of the wheel 13 it
will be seen that the platen will only be brought to the position 23', the position
in which the impression is produced, on each two movements of the beam 9 to
which two complete inkings of the plate will correspond.
It will also be seen that the platen 23 having remained stationary during one
of the two movements of the beam 9, the time during which this movement was
effected will have been given to the feeder for placing or withdrawing his sheet
of paper. I have shown in dotted lines on the Sheet 1, Fig. 1 the new parts
which I add to the machine for obtaining this result.
If instead of a double inking, a triple, quadruple etc. inking is desired it will
only be necessary to make the wheels 31 and 30 in the proportion of 1 to 3 or
1 to 4 instead of 1 to 2.
In Figs. 2 and 3 (Fig. 2 being an end view and Fig. 3 a front view partly in
section), I have shown another arrangement for obtaining the same result. On
the driving shaft carrying the pinion 17 which actuates the wheel 13 there is a
second pinion 171 gearing with a wheel 40 the shaft 41 of which carries a second
wheel 42. The wheel 42 gears with a wheel 43 mounted on the same shaft 44 as
the wheel 13 but turning loosely on this shaft. The part 20 which actuates the
platen carries two levers, one 19 the other 19¹.
The roller 22 of the lever 19 being removed, that 22 of the lever 19 being in
position, the platen 23 will be actuated by the cam 181 which is solid with the
wheel 43, whilst the bed will still be driven by the connecting rod 11 attached to
the wheel 13.
It will be seen that by modifying the proportions of the gears 13, 17, 171, 42,
40, 43, I shall as in the preceding arrangement obtain a movement of the platen
for the number of movements of the bed which I may have chosen.
In certain machines the bed remains stationary, and the platen under the action,
of an actuating connecting rod is brought to meet it, and in its movement produces
the inking. I may apply the means which I have described to this class of
machine by separating the driving of the inking from that of the platen, so as
only to produce the movement of the latter by the means which I have indicated
for a given number of inkings.

page_text: I have stated that these improvements apply to platen pedal machines, but it is
very evident that they are applicable to machines known under the name of pedal
presses whether they are actuated by the foot or by motors.
In Figs. 4 and 5 Sheet 2 of the drawings I have shown another mode for
enabling the employment of pedal machines for photo-typic printing.
These machines generally possess two blades 50 which are brought against the
sheet of paper when once it is fed on the platen and serve to hold it during the time
of the impression.
When the impression is effected, these blades detach the sheet from the cliche
or printing surface and still holding it applied to the platen, then rise to enable
the removal of the sheet and the feeding of another.
Grooves made in the bar 51 on which the blades 50 are mounted permit the
displacement of the latter to make them always correspond to the margins of the
sheet to be printed.
For certain photo-typic impressions the sheets remain applied to the cliche I; the
blades 50 detaching the sheets suddenly, it follows that on account of this adherence-
to the cliche the sheet escapes from under the blades and remains fixed to this
cliche or again that the margins are crumpled or torn.
To overcome this disadvantage I have devised an arrangement which permits of
the detaching of the sheet from the cliche not suddenly but by beginning at one
edge to arrive at the other.
For this purpose I have a third blade 52 connecting the two blades 50 and
which is brought to bear on the upper margin of the sheet; it is provided with
two grooves which permit of the two blades 50 being arranged no longer so that
they come on the two margins of the edges but a little outside the sheet; it is
therefore the blade 52 which holds the latter during the impression. When the
platen and the bed separate one from the other it will be seen that the sheet 53
will be detached as indicated in Fig. 4, commencing from the top and proceeding
gradually down to the bottom; the blade 52 may be placed at different heights on
the blades 50 according to the size of the sheets.
Dated this 21st day of January 1896.
ALLISON BROS.,
Agents for the Applicant.
vements
MACHINES.
I, JULES MICHAUD, of 96 Rue d'Assas, Paris, France, Engineer, 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:
The present invention relates to the application of new means for enabling
what are called photo-typic impressions to be produced on typographic pedal
machines.
The mechanisms by means of which I carry these improvements into effect are
illustrated in the sheets of drawings accompanying the Provisional Specification,
and also in the additional sheet of drawings accompanying the present Complete
Specification, and are hereinafter described.
This invention may be applied with the modifications which the mode of
construction may necessitate, to platen pedal machines of the different constructions
in use.
In the machine represented in Figure:1 of the drawings the plate 1 is mounted
on a block 2 on which it is clamped. as in. flat photo-typic machines. The

page_text: block 2 carries trunnions which are received in the forked supports 3 fixed to the
bed 4.
The block placed in its supports which the bolts 5 prevent it leaving, is held.
at the lower part by a catch 6.
When it is necessary to damp the plate, it is only requisite to bear on the
catch 6, to raise the block, by causing it to turn round its trunnions, and to bring
it to the position 21 where it is rendered immovable by means of a part 7, articulated
at 8, which is brought to the position 71.
The plate in the position 1'is perfectly horizontal which permits of the damping
and also the inking by hand to be effected with the greatest facility.
For the damping and for the inking by hand I have adopted this arrangement
which as it carries the plate completely outside the frame of the machine permita
me to effect this without any inconvenience.
The bed 4 is fixed to a part 9 articulated at 10 and which receives a to and fro
movement from a connecting rod 11 which is attached at 12 to-a crank-pin fixed to
the wheel 13..
The other extremity of the connecting rod 11 is attached to the lever 331
mounted on the shaft 14 and made solid with two levers 15 serving to actuate the
inking rollers 16. All these parts are those of a press serving for typographic
impressions. The wheel 13 is driven by the pinion 17 which is keyed on the
driving shaft of the machine.
For each revolution of..the wheel 13. the beam 9 which carries the bed has
therefore a to and fro movement during which.the rollers 16 ink the plate.
The wheel 13 carries a cam: 18 acting on a lever 19 mounted on the shaft 21.
The roller 22 of the lever 19 is engaged between the cheeks of the cam 18.
A double lever 20 forming one with the shaft 21 acts.on the platen 23 and brings
its plain surface. to 23. at the moment when the printing part of the plate I
participating in the movement of the beam 9 is. brought to this same position 23¹.
This occurs at each revolution of the wheel 13..
For photo-typic impressions it.is advisable to produce several. inkings of the
plate before the printing of a sheet. This result is easily obtained on the machine
shown in the drawings; it possesses a lever by means of which the pressure may
be prevented from being exerted as many times as is desired, but in acting on
this lever the movement of the platen is not prevented from being effected.
On the other hand it is necessary to act on the hand lever in one direction
for preventing the pressure, then in the other direction so that this may take
place.
As for photo-typie impressions generally two complete inkings for one impression
will suffice, I have thought of suppressing the movements necessary for the feeding
so as to prevent.the pressure by means of the ordinary lever. At the same time
I succeed in obtaining for the feeding of the sheet double the time which would
bé obtained in making use only of the interrupting. pressure lever, for producing
the double contact desired; for this purpose the lever 19 has another arm 24 to
which is attached a connecting rod 25; the other end of the connecting rod 25 is
attached to a two armed lever 26; the second arm of the lever 26, which turns on
the centre 28, carries a roller: 27. on which acts a cam.29.1.
. The cam 29 is mounted on.a.wheel 30..
On the shaft of the wheel 13 is keyed a wheel 31 the diameter of which is half
that of the wheel 30...
The wheel 31 actuates the wheel 30 by means of the intermediate wheel 32.
If now the roller 22 on which acts. the cam 18 is removed it will be seen that
the beam 9 will still have its to and fro movement imparted thereto at each
revolution of the wheel. 13 and that for each of these movements the rollers will
ink.the plate..
The platen 23 will no longer be actuated by the cam 18 but by the cam 29
through the intermediary of the lever 26 and of the connecting rod 25, but the
wheel 30. making only one revolution for every two revolutions of the wheel 13 it

page_text: will be seen that the platen will only be brought to the position 231, the position
in which the impression is produced, on each two movements of the beam 9 to
which two complete inkings of the plate will correspond.
It will also be seen that the platen 23 having remained stationary during one of
the two movements of the beam 9, the time during which this movement was
effected will have been given to the feeder for placing or withdrawing his sheet of
paper. I have shown in dotted lines on the Sheet 1, Fig. 1 the new parts which
I add to the machine for obtaining this result.
If instead of a double inking, a triple, quadruple etc. inking is desired it will
only be necessary to make the wheels 31 and 30 in the proportion of 1 to 3 or
1 to 4 instead of 1 to 2.
On
In Figs. 2 and 3 (Fig. 2 being an end view and Fig. 3 a front view partly in
section), I have shown another arrangement for obtaining the same result.
the driving shaft carrying the pinion 17 which actuates the wheel 13 there is a.
second pinion 171 gearing with a wheel 40 the shaft 41 of which carries a second
wheel 42. The wheel 42 gears with a wheel 43 mounted on the same shaft 44 as
the wheel 13 but turning loosely on this shaft. The part 20 which actuates the
platen carries two levers, one 19 the other 19¹.
The roller 22 of the lever 19 being removed, that 22' of the lever 19' being in
position, the platen 23 will be actuated by the cam 18' which is solid with the
wheel 43, whilst the bed will still be driven by the connecting rod 11 attached to
the wheel 13.1
It will be seen that by modifying the proportious of the gears 13, 17, 171, 42,
40, 43, I shall as in the preceding arrangement obtain a movement of the platen
for the number of movements of the bed which I may have chosen.
In certain machines the bed remains stationary, and the platen under the action
of an actuating connecting rod is brought to meet it, and in its movement produces
the inking. I may apply the means which I have described to this class of
machine by separating the driving of the inking from that of the platen, so as only
to produce the movement of the latter by the means which I have indicated for a
given number of inkings.
I have stated that these improvements apply to platen pedal machines, but it is
very evident that they are applicable to machines known under the name of pedal
presses whether they are actuated by the foot or by motors.
In Figs. 4 and 5 Sheet 2 of the drawings I have shown another mode for
enabling the employment of pedal machines for photo-typic printing.
These machines generally possess two blades 50 which are brought against the
sheet of paper when once it is fed on the platen and serve to hold it during the
time of the impression.
When the impression is effected, these blades detach the sheet from the cliche
or printing surface and still holding it applied to the platen, then rise to enable
the removal of the sheet and the feeding of another.
Grooves made in the bar 51 on which the blades 50 are mounted permit the
displacement of the latter to make them always correspond to the margins of the
sheet to be printed.
For certain photo-typic impressions the sheets remain applied to the cliche 1;
the blades 50 detaching the sheets suddenly, it follows that on account of this
adherence to the cliche the sheet escapes from under the blades and remains fixed*
to this cliche or.again that the margins are crumpled or torn.
To overcome this disadvantage I have devised an arrangement which permits of
the detaching of the sheet from the cliche not suddenly but by beginning at one
edge to arrive at the other.
For this purpose I have a third blade 52 connecting the two blades 50 and
which is brought to bear on the upper margin of the sheet; it is provided with
two grooves which permit of the two blades 50. being arranged no longer so that
they come on the two margins of the edges but a little outside the sheet; it is
therefore the blade 52 which holds the latter during the impression. When the

page_text: platen and the bed separate one from the other it will be seen that the sheet 53
will be detached as indicated in Fig. 4, commencing from the top and proceeding.
gradually down to the bottom; the blade 52 may be placed at different heights on
the blades 50 according to the size of the sheets.
I have also made an improvement in the inking mechanism of these machines.
The inking rollers of pedal machines generally carry two wheels fixed to the
spindle itself of the roller and which bear on ways arranged on each side of the
bed. These wheels have for their principal object to prevent the rollers bearing
too hardly upon the surface to be inked and of penetrating into the spaces.
Fig. 6 is an end view, and
Fig. 7 a front view of the bed and of the inking apparatus.
When a roller leaves the inking bed 60 its wheels come against the ways 61 on
which they bear during the time of the impression, and even after the impression
on the part 61' of these ways; the result of this is that the roller as soon as it
leaves the inking table always turns being carried along by the wheels which are
fixed to it. It is the same with the delivery roller 62 as for the other rollers 63,
64, 65, but further when this roller has to come in contact with the inker its wheels
are brought to bear upon two cams 66.
The consequence of this arrangement is that it is always the same parts of the
rollers which on travel of the inking mechanism are brought to bear on the same
parts of the inking table and of the plate or forme 67 to be inked.
For the delivery roller 62 it is always the same part of this roller which touches
the inker 68 and which carries at each turn the same line of ink on to the inking
table 60 and on the forme or plate 67 to be inked.
This arrangement has the great disadvantage of not ensuring a good distribution
of the ink at the same time that if a roller has a fault, this fault will be found to
show on the inked surface 67, seeing that it always comes in correspondence at the
same point of this surface.
To obviate this defect I have thought of mounting on the rollers 62, 63, 64, 65,
Fig. 7, wheels 69 which turn freely on the spindles of these rollers; the supports 70
no longer bear against the spindle of the rollers, but in grooves made in the wheels,
so that the latter cannot become displaced sideways.
It will be seen that by this arrangement the rollers turn independently of the
wheels, with the result that when the rollers leave the inking table before coming
in contact with the forme or plate 67, they have their wheels well supported on
the ways, but they take no part in the movement of the rollers and that, if they
turn, it is only by reason of the speed they have acquired; the same thing occurs
when the wheels are on the parts 611 of the ways; the rollers having left the
plate or forme are free and become displaced more or less, so that on each of
their travels they no longer present the same parts opposite to the forme and to
the table.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
In platen pedal machines
1. The combination with the bed of a plate or cliche bearing block, articulated
at the upper part of the latter so as to enable the plate or the metallic support of
the cliche mounted on the block to be brought into a horizontal position outside
the frame for effecting the damping or the inking.
2. The combination of cams and of parts suitable to impart movement thereto
and such that these cams acting on the platen produce a displacement of the latter
for a given number of inkings of the plate, and also in combination with the
lever serving to prevent the pressure and which is already attached to these
machines..
:
3. The combination with the blades employed for holding the sheet of a part

page_text: permitting of the gradual detachment of this sheet from the plate or cliche after
printing.
4. The combination of the inking rollers with the wheels turning freely on their
spindles so that the rotation of the wheels and that of the rollers may be independent.
of each other.
Dated this 20th dox of Sentember 1896
ALLISON BROS.,
Agents for the Applicant.