Improvements in Single Cylinder Printing Machines.
Year: 1888

page_text: Date of Application, 15th Nov., 1888
Complete Specification Left, 15th Aug., 1889-Accepted, 28th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Single Cylinder Printing Machines.
I, GEORGE NEWSUM, of 5, Fairfax Street, Beeston Hill, Leeds, in the County of
York, Printer's Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to construct single cylinder printing machines in
such a manner that, by a novel combination of parts, each sheet of paper, as it is fed
to the impression cylinder, receives an impression on one side; then to automatically
reverse the sheet, so that on the return of the table. an impression may be given to
the other side; and to ensure a more perfect register.
I accomplish my object by mounting near to the impression cylinder, two additional
cylinders of smaller diameter, each cylinder being fitted with grippers, and the two
additional cylinders geared together by spur wheels, secured on the respective
shafts.
In addition to the last named wheels, a wheel is placed free on the shaft at one
end of each additional cylinder, the said wheels gearing with the impression cylinder
wheels, and so arranged that by means of spring catches or pawls, they can only
operate the additional cylinders when rotating in one direction, that is, one of the
wheels on one cylinder shaft operates the cylinders when the table is moving in one
direction, and the other wheel when moving in the other direction, so that, by the
wheels being placed on different shafts, and the catches or pawls only acting when
rotating in one direction, the additional cylinders always revolve in the same
direction.
The sheets may be fed to the impression cylinder in the ordinary manner, and
when the front edge of a sheet receiving an impression on one side arrives at a certain
position, the grippers on one of the additional cylinders remove the sheet from the
impression cylinder; thereby diverting its course, and delivering it to the grippers
on the second additional cylinder; which in turn deliver it to a second series of
grippers on the impression cylinder with the printed side next the cylinder; the other
side of the sheet receiving an impression during the return stroke of the table.
By the grippers taking hold of the sheets at the same end as that fed to the
machine, the same register or distance from the impression to the edge of the sheet
is ensured in all.
Dated this 14th day of November 1888.
JOHN WAUGH,
Agent.
COMPLETE SPECIFICATION.
Improvements in Single Cylinder Printing Machines.
I GEORGE NEWSUM, of 5 Fairfax Street, Beeston Hill, Leeds, in the County of
York, Printer's Engineer do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
The object of this invention is to construct single cylinder printing machines in
such a manner that, by a novel combination of parts, each sheet of paper fed to the
impression cylinder receives an impression on one side; then to so divert the course
of the sheet by an automatic arrangement, that the opposite or unprinted side of the
paper is presented for receiving an impression from the type on the return of the
table; also to so reverse the sheets that a perfect register is obtained and consists in

page_text: mounting near the impression cylinder, two additional cylinders of smaller diameter,
each fitted with grippers and geared together by spur wheels combined with pawls and
spring catches in such a manner that they always rotate in the same direction.
In the accompanying drawings Fig. 1 represents a plan of the impression
cylinder of a printing machine and the two additional cylinders in their relative
positions.
Fig. 2. is a view of the cylinders and gearing when looking from the end of the
machine.
Fig. 3. an end view of the gearing at one end of the cylinders, and
Fig. 4. a view of the gearing at the opposite end.
The impression cylinder A is mounted in the usual manner and, the two additional
cylinders B and C may be supported by similar brackets all the cylinders being
fitted with grippers of the ordinary construction operated by any of the usual and
well known means.
On the shaft of the impression cylinder A are secured the spur wheels D and D'
gearing with racks secured to the traversing table of the machine, and on the
shaft S of the small cylinder B are two wheels E and E¹ of the same size; the
wheel E being keyed on the cylinder shaft S whilst the other E¹ is free thercon fitted
with a pawl and spring catch arrangement and in gear with wheel D on the shaft of
impression cylinder A.
Gearing with wheel E secured on the cylinder shaft S is a wheel F keyed on the
shaft S' of additional cylinder C and on the opposite end of said shaft is another
wheel F¹ of the same diameter gearing with wheel D¹ secured on the shaft of impression
cylinder A and in order that the cylinders B. and C. may run in one direction only,
the cylinders B. and C. and adjacent wheels E and F gearing with the wheels D.
and Dare each provided with a pawl and spring catch arrangement fully described
in my specification No. 8721. A.D. 1886.
When the machine is in motion the paper is fed from board G. to the grippers H.
which carry it in the direction of arrow I. the paper receiving an impression on
one side thereof on coming in contact with the type on the traversing table, and when
the grippers B. arrive at the point represented by line J. the said grippers are released
by any of the ordinary means now in common use thereby releasing the paper, the
grippers K. on small cylinder B always rotating in the direction shown by arrow 2.
at the same time receive the sheet and carry it until the grippers K. arrive at line J¹
when the grippers L. of the additional cylinder C. will be in the position to take
hold of the said sheet at the same end and carry it forward in the direction of arrow 3.
and by the time the grippers L. arrive at the position shown by Figs. 3. and 4. the
impression cylinder A. will have completed one revolution, and on the return of the
table begin to revolve in the opposite direction shown by arrow 4. On the cylinder A.
beginning to rotate in the opposite direction as shown by arrow 4. the additional
cylinders B. and C. will then be driven by the wheel F1 which is free on the cylinder
shaft and gears with wheel D' the rotation of the cylinders being the same as shown
by arrows 2 and 3 as when driven by wheel E' and which is accomplished by the
pawl P. on wheel F' engaging with the curved stop R. on end of impression cylinder
a similar arrangement being fitted to wheel E and end of cylinder B; the spring T.
allowing the catch or pawl P. to yield on coming in contact with the pointed end of
curved stop R. thereby allowing the cylinder B. to revolve in a contrary direction to
wheel E'.
As before mentioned on the return of the table after an impression has been made
on one side of the paper the cylinder A. revolves in the direction of arrow 4 and by
the time the grippers L. arrive at line J' they will be opened and allow the second
series of grippers H¹ on impression cylinder A. to carry the sheet in the direction of
arrow 4 the last named grippers taking hold of the paper at the same end; the
printed side of the sheet being now next the circumference of the cylinder A. so that
on the sheet coming in contact with the type, an impression is made on the opposite
side of the sheet which is removed from the cylinder A. by any well known dis-
tributing apparatus.

page_text: By the several sets of grippers taking hold of the sheets at the same end as they
are fed to the machine, the same register or distance from the impression to the edge
of the sheet is ensured on all the sheets.
Having now particularly described and ascertained the nature of this my
invention and in what manner the same is to be performed, I declare that what
I claim is
A printing machine in which are combined three cylinders each having grippers or
equivalents for holding the paper and driven by gearing all being arranged substan-
tially in the manner as shown and hereinbefore set forth.
JOHN WAUGH,
Agent.