IMPROVEMENTS IN PRINTING MACHINES
Year: 1874

page_text: LETTERS PATENT to Robert Wilson, of 38, Warwick Street, Deptford,
in the County of Kent, for the Invention of "IMPROVEMENTS IN
PRINTING MACHINES."
Sealed the 5th December 1874, and dated the 13th July 1874.
PROVISIONAL SPECIFICATION left by the said Robert Wilson at the
Office of the Commissioners of Patents, with his Petition, on the
13th July 1874.
I, ROBERT WILSON, of 38, Warwick Street, Deptford, in the County
of Kent, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN PRINTING MACHINES," to be as follows:-
:―
My said Invention relates to novel arrangement and combination of
parts, whereby construction of the machine is simplified, and certain
kinds of printing may be executed with greater speed and exactitude,
and by a method involving a smaller amount of manual labour or
attendance upon the machine than heretofore. The platen is worked
from either side of the machine by an eccentric motion, and the im-

page_text: pression is adjusted by screws attached to the lever that is worked by the
eccentric on either side, so that impressions may be taken or thrown off
at and from any of the four corners at will.
The type in my said Invention is fixed to the platen by grooves at
each side, the chase being made to fit the grooves. The platen is made a
to remain stationary until the inking rollers have passed over the forms
of type.
The bed of the machine is fixed to the main framing at each side by
bolts and screws. On this bed the paper is laid to wait the fall of
platen charged with the forme of type that is to produce the impression.
As soon as the impression has been produced the printed sheets are
carried on the feed board, to which guides are fixed to two revolving
rollers, between which the printed sheets are drawn, and from them are
dropped into a box at the end of the machine.
The feed board is made in parts of various dimensions to suit the
different sizes of paper to be printed, and the delivery rollers are adjusted
to revolve by an endless band running from the moving shafts on which
the eccentrics before mentioned are fixed. By grooves cut in the framing
of the machine the delivery rollers may be moved backwards or forwards
according to the requirements of the various kinds of paper operated
upon. To keep the band tight by which the rollers revolve a groove is
cut in the framing by which the pulleys on which the band runs can be
adjusted and kept tight when the delivery rollers are shifted either way.
The method by which a supply of ink is provided for the forme of
type between successive impressions are as follows: -The inking rollers
are caused to remain stationary while the platen is giving an impression.
They receive their supply of ink from a revolving roller, that rises and
falls so as to allow a free passage to the inking rollers, which may be
three or four in number, in their passage over the forme. After inking
the forme the rollers return for a fresh supply of ink, and are caused to
remain stationery until the revolving roller rises to meet them. The
rising and falling of the roller is effected by the use of a cam or cams
that are attached to the main shaft upon either side, and that work two
arms that are attached to the distributing roller. The inking roller is.
supplied by another roller that works against the ink duct, and is
attached to the arm used for raising and lowering the inking roller in

page_text: such manner that in the movement of the arm the roller is made to
work against the ink duct and against the distributing roller alternately.
The ink duct, which is of the description now well known, is made to
revolve by a band from the shaft.
The novelties and advantages claimed by the said Invention are,-
The method of delivering the printed sheets from the machine.
The vertical action of the platen and type upon the work produced.
The arrangements for supply and application of ink to the forme.
And generally for novel combinations and arrangements of the machine
for feed and delivery by adjustable boards and working rollers, and for.
the rising and falling actions in distributing the ink and taking the
impressions.
The moving power may be applied manually by hand, by a foot treadle,
or by a strap or band connected with a steam engine.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Wilson in the Great Seal Patent. Office
on the 8th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
WILSON, of 38, Warwick Street, Deptford, in the County of Kent,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of July, in the year of our Lord
One thousand eight hundred and seventy-four, in the thirty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Robert Wilson, Her special licence that I, the
said Robert Wilson, my executors, administrators, and assigns, or such
others as I, the said Robert Wilson, my executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,

page_text: The feed board is made in parts of various dimensions in order to
render it adjustable to suit the different sizes of paper to be printed,
and the delivery rollers are made to revolve by means of an endless band
running from the main shaft, on which the cams before mentioned arc
fixed. By slots and grooves being cut in the framing of the machine
the delivery rollers may be moved to or further from the delivery
table according to the various sizes of paper operated upon. To
keep the band tight by which the rollers are driven a slot or groove is
cut in the framing, by which an intermediate pulley on which the band
runs can be adjusted and the band kept tight when the delivery rollers
are shifted either way.
The method by which a supply of ink is provided for the form of type
between successive impressions is as follows:-The inking rollers (which
may be three or four in number) are allowed to remain stationary while
the platen is giving an impression, and receive their supply of ink from
a revolving roller, that is caused to rise to them and is afterwards allowed
to fall, so as to admit of their free passage over the form. After inking
the form the rollers are caused to return for a fresh supply of ink. The
rising and falling of the above-mentioned supply and distributing rollers
is effected by means of a cam or cams connected to the main shaft, and
that work two arms which carry the distributing rollers. The distributing
roller is supplied with ink by another roller that works against the ink
duct, and is carried by a pair of arms, which are connected to and moved
by other arms, which carry and move the distributing roller in such a
manner that whilst the distributing roller is giving a supply to the
inking rollers the other roller is taking ink from the ink duct; when
not doing so these two rollers are in contact. The ink duct (which is of
the description now well known) as well as the distributing roller are
made to revolve by a band from the main shaft.
Having thus stated the nature of the said Invention, I will proceed to.
describe more particularly in what manner the same is to be performed.
by the aid of the accompanying Drawings, which represent a printing
machine constructed in the manner herein-before referred to.

page_text: these several Figures the same letters of reference indicate corresponding
parts.
A is the main shaft carrying a bevil wheel B, which is geared with the
bevil wheel C on the driving shaft D, which is provided with loose and
tight riggers E. On each end of the main shaft A are fixed the two
cams F, which through the side rods H and I impart motion to the
frame G, which carries the platen and type. The various cams K, L, M,
respectively impart the different motions to the type, inking rollers k³,
the supply and distributing rollers and 1, and the feed board m³. The
cam K gives its motion through the agency of the crank lever k¹, the
connecting rods and *, and the lever k³; the cam L (enlarged in
Fig. 5) through the frame and rollers l', crank levers 12, and rods 13;
and
the cam M (enlarged in Fig. 6) through the frame and rollers m' and
lever m³. N is an ink duct of the ordinary kind, and O and P represent
the delivery rollers for the printed sheets. On the extremity of the main
shaft A the ink duct roller shaft n, the distributing roller shaft, and
delivery roller shaft p, is fixed a V pulley, of suitable diameter for the
speed required to carry an endless band, and in any convenient position
is arranged the V pulley Q, which is adjustable in order that it may be
rendered capable of taking up the slack when required.
Now it will readily be seen that when a revolving motion is imparted
to the driving pulley E, the frame G with the platen and type will be
raised to allow a piece of paper off the board R to be introduced ready
for being printed upon, the distributing roller l' will then descend and
come in contact with the roller for a supply of ink, allowing the
inking rollers k³ to come under the type and ink it, when so soon as they
are clear the frame G and type will be brought down upon the paper
and produce an impression; then as soon as the printed paper is relieved
the. feed board m³ will carry it to and introduce the edge of the sheet
between the delivery rollers O and P, which in their turn will deliver it
into any receptacle that may be placed to receive it.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, I hereby declare that what I claim
as of my Invention is,-.
First. The general arrangement and construction of the machine, as
herein-before described.

page_text: Secondly. The arrangement of the cam and lever motion for the
supply and application of ink to the form of type, as herein-before
described.
Thirdly. The delivery of the printed sheets by means of an adjustable
board and revolving delivery rollers, as herein-before described.
And, Lastly. The cam motion for producing the vertical action of the
platen and type, as herein-before described.
In witness whereof, I, the said Robert Wilson, have hereunto set
hand and seal, the Sixth day of January, in the year of our
Lord One thousand eight hundred and seventy-five.
Witness,
WILLIAM SPENCE,
8, Quality Court,
Chancery Lane.
ROB³. WILSON. (L.S.)