Improvements in Printing Machines.
Year: 1887

page_text: Date of Application, 13th June, 1887
Complete Left, 9th Mar., 1888
Complete Accepted, 13th Apr., 1888
PROVISIONAL SPECIFICATION.
Improvements in Printing Machines.
We, AUGUSTE HIPPOLYTE MARINONI and JULES MICHAUD, both of 96 ruo 'Assas,
Paris, in the Republic of France, Engineers, do hereby declare the nature of this
invention to be as follows:-
Some of the improvements in printing machines for which we obtained a Patent
No. 11393 dated 24th September 1885 and which were more particularly applicable
to perfecting machines, had for their object to permit of the delivery of the sheets
printed either on one side only or on both sides. The present improvements also
relate to the printing of sheets either on one side only, or on both sides, and to their
delivery on the receiving table, if they are to be received by hand, or to mechanical
receivers if the sheets are to be received mechanically.
These improvements permit of the complete abolition of the tapes passing round
the printing cylinders in perfecting machines, which has not hitherto been possible.
The machine is arranged to print either on both sides, or on one side only with a
single feed, or on one side only with a double feed; the special arrangements for
printing in one or the other of these methods have been described in a previous
patent. Supposing the machine to be intended to print on one side only with a
double feed, the cam carrier has been modified, its two extremities carrying the cams
serving to act on the rollers of the grippers of the delivery cylinders. These
cylinders carry toothed wheels gearing with wheels mounted on the printing cylinders,
and are further of such a diameter that they make exactly a given number of revo-
lutions for every two revolutions of the printing cylinders, that is to say so that the
meeting of their grippers with those of the printing cylinders takes place every time
that the latter have a sheet to deliver to them.
The sheets taken by the grippers of the delivery cylinders are conveyed to the
delivery either by a set of tapes to be directed to the mechanical receiver or they
may be delivered by tapes, above the receiving table, to be placed on such table
by hand.
So as to enable the top of the type table to be more rapidly uncovered in order to
facilitate the preparation of the machine for press, we may fix the rollers round which
the tapes pass, to the feed table, so that in raising the latter the set of tapes will be
raised at the same time.
We may further replace the tapes which serve to hold the sheets when they have
been released by the grippers, by balls of india rubber, such balls bearing on the
cylinder and holding the sheets, whereby the tapes can be dispensed with.

page_text: When the cam carrier which has the reciprocating movement imparted to it as
usual in perfecting machines, is in its position near to the cylinders, the roller of one
of the delivery cylinders will come in contact with one of the cams, while the roller
of the other delivery cylinder will not come in contact with the other cam.
When on the contrary, the cam carrier has been moved away from the cylinders,
the last mentioned cam will come in contact with the corresponding roller, while the
first mentioned roller will not come in contact with its cam.
Thus, the other cams being arranged as indicated in our previous patent in the case
where the printing is on one side only and a double feed is employed, it follows that
the sheet fed to one printing cylinder and printed, will be seized by the grippers of
the corresponding, delivery cylinder and carried along by a set of tapes which will
conduct it to the flyer.
The grippers of this delivery cylinder will be opened to seize the printed sheet,
because at the moment of their passage the cam carrier being moved away from the
cylinders, the roller controlling these grippers will come in contact with the corro-
sponding cam the grippers of the other delivery cylinder which had no sheet to
seize will not be opened, by reason of such movement of the cam carrier.
On the second revolution of the cylinders, that is to say when the sheet fod from
the other feed table has been seized and printed by the other printing cylinder the
reverse action will take place, that is to say that the cam carrier being near the
cylinders, the grippers of the second delivery cylinder will seize the printed sheet, and
the grippers of the first delivery cylinder will remain inactive.
It is evident that the machine may be made either to receive the sheet by hand at
both ends, or with one or two mechanical receivers, and we further reserve to ourselves
the right to arrange these receivers either vertically, horizontally or in any other
suitable manner.
The horizontal form of receiver is more particularly applicable to exclusively
perfecting machines.
The operation as above described applies equally well to the case of a double feed
printing on one side only, a single feed, and to the case of "perfecting."
In the latter case however if the feed is effected from the table as there is only one
delivery to be utilized one cam must be dismounted or removed.
We have described the cams which actuate the rollers of the delivery cylinders as
being mounted on the cam carrier; this arrangement is only described as it is one of
the simplest, and is suitable for converting existing machines, but we may employ any
other mechanical means for actuating the grippers of the delivery cylinders at the
proper moment.
For example the cams, which acting on the rollers of the grippers
cause the latter to operate, may be mounted on the printing cylinders. The two cams
might be mounted on levers independent of each other which would move thom
towards and away from the delivery cylinders at the required moments. They might
also be mounted on a single lever which has an oscillating movement imparted to it
such that when one cam is in contact with the roller of the corresponding cylinder,
the other cam will be moved away from the other cylinder. The reciprocating or
oscillating movement can readily be obtained in perfecting machines as at presont
constructed.
For example, two axes carrying the cams to effect the seizing of the sheets and
actuate the cam carrier may be provided. All that is necessary is to mount on each
or either of these axes a grooved cam with which a roller on a lever engages in order
to impart the necessary movement, to such lever, once for each sheet printed, as the
wheel mounted on the axis itself makes one revolution per shoot.
We repeat that this arrangement, the same as that previously described, is only
given as an example, the means for actuating the grippers of the delivery cylinders
being capable of being varied indefinitely.
Dated this 13th day of June 1887
ALLISON BROS.,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Printing Machines.
We, AUGUSTE HIPPOLYTE MARINONI and JULES MICHAUD, both of 96 rue d'Assas,
Paris, in the Republic of France, 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:-
Some of the improvements in printing machines for which we obtained a Patent
No. 11393 dated 24th September 1885 and which were more particularly applicable
to perfecting machines, had for their object to permit of the delivery of the sheets
printed either on one side only or on both sides. The present improvements also
relate to the printing of sheets either on one side only, or on both sides, and to their
delivery on the receiving table, if they are to be received by hand, or to mechanical
receivers if the sheets are to be received mechanically.
These improvements permit of the complete abolition of the tapes passing round
the printing cylinders in perfecting machines, which has not hitherto been possible,
and are shown in the accompanying drawings, Fig. 1 being a front elevation of the
machine, and Fig. 2 a plan of the delivery cylinders and of the cam carrier.
The machine is arranged to print oither on both sides, on one side only with a
single feed, or on one side only with a double feed; the special arrangements for
printing in one or the other of these methods have been described in our previous
patent. Supposing the machine to be intended to print on one side only with a
double feed, the cam carrier W has been modifiod; at its two extremities it carrios
the cams A and A³ serving to act on the rollers of the grippers of the delivery
cylinders D', D. These cylinders D' and D' carry toothed wheels gearing with
wheels mounted on the impression cylinders B1 and B2; these cylinders D and D2
are further of such a diameter that they make exactly a given number of revolutions
for every two revolutions of the impression cylinders, that is to say, so that the
meeting of their grippers with those of the impression cylinders takes place every time
that the latter have a sheet to deliver to them.
The sheets taken by the grippers of the cylinders D are conveyed to the delivery
either by a set of tapes G' to be directed to the mechanical receiver, as indicated on
the left side of Fig. 1, or as indicated on the right side of this Fig. the sheet may
be delivered by the tapes m' above the receiving table H², to be placed on such table
by hand.
So as to enable the top of the type table to be more readily uncovered in order to
facilitate the preparation of the machine for press, we may arrange the tapes Gas
indicated on the left hand side of Fig. 3.
In this arrangement the rollers round which pass the tapes G¹ are fixed to the
board or table (, so that in raising the latter the set of tapes will be raised at the
same time.
We may further replace the tapes m' which serve to hold the sheets when they
have been released by the grippers, by balls of india rubber K (as shown on right

page_text: hand side of Fig. 3), such balls bearing on the cylinder and holding the sheets,
whereby the tapes m¹ can be dispensed with.
In Fig. 2 the cam carrier, which has the movement to and from the cylinders
imparted to it as usual in perfecting machines, is shown in its position near to the
cylinders, and it will be seen that in this position of the cam carrier, the roller X³ of
cylinder D will come in contact with cam A2, while roller X¹ of cylinder D' will not
come in contact with cam A¹.
When, on the contrary, the cam carrier has been moved away from the cylinders,
the cam A¹ will occupy the position shown in broken lines, and it will come in contact
with roller X, while roller X2 will not come in contact with cam A².
The parts being thus arranged, the other cams being arranged as described in our
previous patent in the case where the printing is on one side only and a double feed
is employed, it will be seen that the sheet fed to cylinder B', and printed, will be
seized by the grippers of cylinder D', and carried along by the set of tapes G³, which
will conduct it to the flyer.
The grippers of cylinder D' will be opened to seize the printed sheet, because at the
moment of their passage the cam carrier being moved away from the cylinders, the
roller X will come in contact with cam A'; the grippers of cylinder D³ which had
no sheet to seize will not be opened, by reason of such movement of the cam carrier.
On the second revolution of the cylinders, that is to say, when the sheet fed from
feed table has been seized and printed by cylinder B2, the reverse action takes
place, that is to say, that the cam carrier being near the cylinders, the grippers of
cylinder D will seize the printed sheet, and the grippers of cylinder Di will remain
inactive.
We have shown on the side of the cylinder B² a delivery for receiving the sheets
by hand.
It is evident that the machine may be made either to receive the sheets by
hand at both ends, or with one or two mechanical receivers, and we further reserve
to ourselves the right to arrange these receivers either vertically, horizontally, or in
any other suitable manner.
It has been seen that when "perfecting" (that is to say when the sheet fed to the
first impression cylinder is delivered from the machine printed on its two sides), after
the first revolution of the cylinder to which the sheet has been.fod, the grippers thereof
release it and the grippers of the second cylinder seize it.
So that during the passage of the sheet from one cylinder to the other there shall
be no slip on the first impression cylinder we arrange a bar U over such cylinder, a
number of arms R being mounted on such bar and carrying rollers S mounted to.turn
loosely on suitable axes. The arms R can oscillate freely on the bar U, so that the
rollers S rest on the paper by their weight and hold it on the cylinder while the
forward end of the sheet passes from this cylinder to the other, without any slip of
the paper occurring for the moment of time that it is abandoned by the grippers.
The arms R instead of oscillating freely might also be forced against the cylinder in
order to hold the sheets, the result being the same.
Fig. 4 shows a machine provided with a horizontal receiver. This form of receiver
is more particularly applicable to exclusively perfecting machines.
The operation as above described applies equally well to the case of a double feed
printing on one side only, a single feed and to the case of "perfecting."
In the latter case, however, if the feed is effected from feed table C (Fig. 1), as
there is only one delivery to be utilized the cam A' should be dismounted.
In Fig. 1 we have indicated the cams A1 and A2 which actuate the rollers of the
delivery cylinders, as being mounted on the cam carrier; we have shown this arrange-
mont only as one of the simplest and as suitable for converting existing machines,
but we may employ any other mechanical means for actuating the grippers of the
delivery cylinders at the proper moment. For example, the cams which acting on
the rollers of the grippers cause the latter to operate, may be mounted on the
impression cylinders. The two cams A¹ and A2 might be mounted on levers inde-
pendent of each other which would move them towards and away from the cylinders D'
and D at the required moments. They might also be mounted on a single lever, as

page_text: shown in Figs. 5 and 6, which lever has an oscillating movement imparted to it, such
that when one cam is in contact with the roller of the corresponding cylinder the other
cam will be moved away from the other cylinder. The reciprocating or oscillating
movement can readily be obtained in perfecting machines as at present constructed.
For example, the letters N, N', represent axes carrying cams to effect the seizing
of the sheets and actuate the cam carrier. All that is necessary is to mount on the
axis N, a grooved cam with which a roller O on lever M engages in order to impart
the necessary movement to such lever, once for each sheet printed, as the wheel
mounted on N itself makes one revolution per sheet.
We repeat that this arrangement, the same as that previously described, is only
given as an example, the means for actuating the grippers of cylinders D¹ and D'
being capable of being varied indefinitely.
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 :-
1st. The use in the machine described in our previous Patent No. 1139385 above
referred to, of delivery cylinders provided with fingers or grippers.
2nd. The construction herein described of a machine capable of printing either on
both sides of the paper, on one side only on each cylinder with a single feed, or on
one side only on each cylinder with a double feed, without the use of any tapes on the
impression cylinders, the receiving of the printed sheets being effected either by hand
or by means of mechanical receivers.
3rd. The employment of the rollers S to hold the sheets at the moment of their
passage from one cylinder to the other, substantially as specified.
Dated this 9th day of March 1888.
ALLISON BROS.,
Agents for the Applicants.