Improvements in Printing Machines.
Year: 1899

page_text: Date of Application, 1st Nov., 1899
Complete Specification left 14th July 4000 Accented 27th Oct
1000
Improvements in Printing Machines.
We, JoN RIDD HAYMAN, Printer, and JOHN EDWARD SHAW, Printers
Machine Manager, both of 113 and 115, Farringdon Road, in the County of
London, do hereby declare the nature of this invention to be as follows:-
The invention has for its object improvements upon the ordinary letterpress
perfecting machine, by utilising in combination the rotary and Hat process of
printing for fine work in either black or colors as follows.
We employ an impression cylinder (provided with grippers to convey the
sheet to be printed) which, in making its first revolution, brings the sheet in
contact with printing plates on the periphery of one half of a type cylinder.
The first color being printed, the sheet is still retained by the grippers on the
impression cylinder and the latter, making a second revolution, is brought
again into contact with the plates on the second portion of the type cylinder,
when the sheet receives a second printing in a second color. It is then trans-
ferred by grippers to a second impression cylinder, which in its revolution prints
the sheet on the reverse side from a forme on the flat bed.
The curved plates are inked from separate ink ducts and sets of rollers, which
rollers are provided with lifts, half the width of the bearers upon which the
roller lifts travel, and the relative portions of the bearers being of different
heights cause the rollers to drop upon their respective sets of plates and ink
them, rising again to clear the other set. In the case of black or one color
work, by a re-adjustment of the bearers the single forme is rolled by the two
sets of inkers, thus securing perfect rolling; the sheet is then transferred to
the ordinary perfecting cylinder to print the second forme.
By means of our invention we obtain :-
Firstly. A great economy of space, the machine occupying not more than
three-fourths of the space usually taken up by either perfecting or rotary
machines at present used for producing the same sized sheet, although provision
is made for an additional printing in color.
Secondly. By the provision of a supplementary ink duct and rollers, a double
inking of the flat forme is provided for, and all the advantages of Wharfedale
work are secured for the outer forme at a greatly increased rate of speed.
Thirdly. By being able to use an endless web of set off paper, a very great
economy is effected, whilst high class work is obtained with an entire absence
of set off.
Fourthly. The machine may be driven at a much greater speed, restricted
only by the capacity of the feeder, and by reason of the flat type bed being
much lessened in weight, the friction is greatly reduced and the wear and tear
of the driving gear is correspondingly small.
Dated this 31st day of October 1899.
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.

page_text: We, JOHN RIDD HAYMAN, Printer, and JOHN EDWARD SHAW, Printer's
Machine Manager, both of 113 and 115, Farringdon Road, in the County of
London, 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 invention has for its object improvements upon the ordinary letterpress
perfecting machine by utilizing, in combination, the rotary and Hat process of
printing for fine work, in either black or colors, as follows:-
We employ an impression cylinder (provided with grippers to convey the
sheet to be printed) which brings the sheet in contact with printing plates on
the periphery of a type cylinder. It is then transferred to a second impression
cylinder which in its revolution, prints the sheet on the reverse side from a
forme on the flat bed.
By means of our invention we obtain :-
Firstly. A great economy of space, the machine occupying not more than
three-fourths of the space usually taken up by either perfecting or rotary
machines of the construction at present used for producing the same sized
sheet.
Secondly. By the provision of a supplementary ink duct and rollers, a double
inking of the Hat forme is provided for, and all the advantages of Wharfedale
work are secured for the outer forme at a greatly increased rate of speed.
Thirdly. By being able to use a reel or web of "set-off" paper, a very great
economy is effected, whilst high class work is obtained with an entire absence
of set-off.
Fourthly. By reason of the flat type bed being much lessened in weight, the
friction is greatly reduced, and the wear and tear of the driving gear is corre-
spondingly small; the machine can therefore be driven at a much greater speed,
restricted only by the capacity of the feeder.
Our invention is illustrated in the accompanying drawings, in which:-
Fig. 1 is a side view and Fig. 2 an end view of our improved machine, and
Fig. 3 is an underside view of the flat type bed provided with the known
mangle wheel gearing for giving reciprocating motion thereto.
Our improved press is a letterpress printing machine for the rapid production
of illustrated and other work.
a is the framing, is a cylinder for printing from curved plates, which are
inked by rollers ce supplied from the inking drum e', which has ink supplied
thereto and distributed thereon by the ink duct ², vibrator &, and distributing
rollers ct. d is the impression cylinder co-operating with the printing
cylinder b.
The sheet to be printed is fed from the board or table a¹ into grippers
carried by the impression cylinder and, after having been printed on one
side by the printing cylinder b, is carried by tapes e, or it might be by grippers,
as in an ordinary two cylinder printing machine, on to the impression cylinder f,
and the sheet is perfected on a flat bed either from type or plates, and is
delivered to the table h.
The printing cylinder bis moved a short distance, say an eighth of an inch,
out of contact with the impression cylinder dat every alternate revolution,
as will be hereinafter described.
During the two revolutions of the printing cylinder b, the plates thereon

page_text: receive a double inking from the rollers cc. Two sets of inking rollers i
are used with the type bed y; thus the flat forme is inked by eight rollers, half,
or other proportion, being inked by the rollers i, and the remainder by the
rollers . Each set of rollers i, i, after having inked one part of the forme,
is automatically raised by the usual lift on the roller tramway to clear the
portion already inked by the other set of rollers, when it again descends as that
portion of the forme is cleared. By this means the skidding of the inking
rollers i, on the forme, caused by the sudden turn of the rack, as in an
ordinary perfecting machine, is avoided and better work secured.
jjare ink ducts, *** are vibrators, and kk are waver rollers to supply
ink to the inking tables and distribute it thereon.
m is the main driving shaft, on which are mounted the fast and loose
pulleys. m, m2, toothed pinion m³, and bevelled wheel m*.
The toothed pinion m gives motion, by an intermediate wheel f*, to a toothed
wheel f¹ fixed on the shaft f of the impression cylinder f. The toothed wheel fl
gears with a toothed wheel 2 fixed on the shaft of the impression cylinder d,
and the toothed wheel gears with a toothed wheel b¹ fixed on the shaft b² of
the printing cylinder b. Thus motion is communicated from the driving shaft m
to the cylinders b, d and f.
The bevelled wheel m gears with a bevelled wheel a fixed on an upright
shaft n, and a toothed pinion ² on the upper end of such shaft gears with
the rack and thereby gives a reciprocating motion to the flat type bed y in
the manner well understood.
is a reel of "set-off" paper, which passes around the impression cylinder f,
and is then rewound on to the reel o, being guided in its passage to the
cylinder by the guide roller 02, and from the cylinder f to the reel o¹ by the
guidé rollers o³, 04, 05, 06.
b
The motion of the cylinder away from the cylinder d is conveniently obtained
by means of cams f³ on the shaft f2, which, by rods fitted with rollers 2¹
running in the cam grooves, give motion to arms or levers fixed to eccentrics 5*
surrounding the shaft of the cylinder 6 and working in the bearing blocks 65.
The roller of the ink duct is rotated by a gut or band passing round
a cone pulley on the axle of the roller 2, round guide rollers and round
a cone pulley fixed on the shaft f2.
The roller of the ink duct j is similarly operated.
Our improved printing machine will supply printers who do not require web
machines with a compromise between the ordinary rotary and ordinary per-
fecting machines at much less cost, which will enable them to turn out first
class illustrated work at a much greater rate of speed than is possible on an
ordinary perfecting machine or Wharfedale."
"
The weight of the flat type bed, consequent on only one impression cylinder
being used in connection therewith, is greatly reduced, and the inking rollers
being automatically raised on the turn of the rack, the friction of the machine
is reduced to a minimum, and the speed attainable is restricted only by the
capacity of the feeder.
By using ink of different colors in the ink ducts jj, the two halves or portions
of the outer or flat forme can be printed in different colors.
The machine can also, if desired, be used as a Wharfedale to print on only
one side of the sheet with equally good results.
Our improved machine will print a much larger sheet than can be printed
on other machines of the size.
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 printing machine, the combination of a printing cylinder having a
curved printing surface and a co-acting impression cylinder to print one side

page_text: of a sheet, with a travelling flat type bed and a co-acting impression cylinder
to print the second side of said sheet, substantially as herein set forth.
2. In a printing machine, the combination of a printing cylinder having a
curved printing surface, inking apparatus, and co-acting impression cylinder
to print one side of a sheet, a travelling flat type bed and a co-acting impression
cylinder acting therewith to print the second side of said sheet, an ink duct and
set of rollers to ink one part of the flat forme and a second ink duct and set of
rollers to ink the other part of said flat forme, substantially as herein set
forth.
3. In a printing machine, the combination of a printing cylinder having a
curved printing surface, inking apparatus, and co-acting impression cylinder to
print one side of a sheet, a travelling flat type bed and a co-acting impression
cylinder acting therewith to print the second side of said sheet, an ink duct
and set of rollers to ink one part of the flat forme, a second ink duct and set
of rollers to ink the other part of said flat forme, and a travelling set off"
passing around the impression cylinder of the flat forme, substantially as herein
set forth.
15
4. The improved printing machine constructed and operating, substantially
as herein shown and described.
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.