Improvements in Cylinder Printing Machines.
Year: 1893

page_text: Date of Application, 26th Jan., 1893
Complete Specification Left, 25th Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Cylinder Printing Machines.
I, DANIEL THOMAS POWELL of 33 Ludgate Hill in the City of London
Printers' Engineer do hereby declare the nature of this invention to be as
follows:-
This invention consists in improvements in cylinder printing machines and has
for its object a better means of inking the forme combined with simplicity and
solidity.
I build my machine on a base plate having planed rails on it and dispense with
the stretchers and bowl rails and bowls as in use generally. There is no ink table
and in place of this I substitute what may be called a pyramid of rollers and
distributors which are all connected or in contact with each other and the ink duct
and are thus continually supplied with ink so that in inking the forme a fresh
supply of ink is provided and passed distributed to the inkers as fast as it is
deposited on the type or blocks, by this means double rolling is unnecessary and a
greater speed and more perfect inking attained. My machine is what is known as
an "underfeed" machine and has provision for stopping the cylinder, feed board
and gripper action at will, but it may be an "overfeed" machine if desired. In
the flyer apparatus I dispense with the ordinary wooden cylinder or drum and use
in its place a series of wheels flat and grooved some of which are fitted with grippers
for taking the sheets from the printing cylinder. By this means I avoid the
smearing or "set off" when heavily inked sheets are being taken off.
Dated this 26th of January 1893.
DANIEL T. POWELL.
COMPLETE SPECIFICATION.
Improvements in Cylinder Printing Machines.
I DANIEL THOMAS POWELL of 33ª Ludgate Hill in the City of London,
Printers' 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 :-
This invention consists in improvements in cylinder printing machines and has
for its object a better means of inking the forme combined with simplicity and
solidity.
I build my machine on a base plate having planed rails on it and dispense with
the stretchers and bowl rails and bowls as in use generally. There is no ink table
and in place of this I substitute what may be called a pyramid of rollers and
distributors which are all connected with each other and the ink duct and are thus
continually supplied with ink so that in inking the forme a fresh supply of ink is
provided, distributed and passed to the inkers as fast as it is deposited on the type
or blocks. By this means double rolling is unnecessary and a greater speed and
more perfect inking attained.
My machine is what is known as an "underfeed" machine and has the ordinary
provision for stopping the cylinder, feed board and gripper action at will, but it
may be an "overfeed" machine if desired.
In the flyer apparatus I dispense with the ordinary wooden cylinder or drum and
use in its place a series of wheels flat and grooved, some of which are fitted with
grippers for taking the sheets from the printing cylinder.

page_text: By this means I avoid the smearing or "set off" when heavily inked sheets are
being taken off.
In order that my invention may be better understood and that it may be clearly
known wherein my claim to novelty exists, I have prepared a sheet of drawings.
Fig. 1. is an elevation of the machine.
Fig. 2. is a diagram of the flyer.
A. is the base plate.
B. are planed rails and are in proportion to the size of the machine, there may be
two or more of these rails with their attendant wheels as shown.
C. is the type bed.
D. is the cylinder.
E. is the pyramid of rollers for inking.
F. is the flyer.
G. is the feed board.
From this drawing it will be seen that the machine generally works in the
ordinary well known method.
My invention having to do chiefly with the inking and flying appliances I will
now more particularly describe them.
In the inking arrangement the pyramid of rollers takes the place of the ink table
wavers and distributors usually found on English machines. H. represents the ink
duct 1'11' are three distributing drums provided with a suitable lateral movement
and J J are composition distributors. K' K' are metal distributors. L. is the
vibrator taking supply of ink from duct and transferring same to distributors.
M' MM M' are inkers.
The whole are driven by gearing in connection with the table and frictional
contact with the composition rollers as indicated.
Fig. 2. The flyer F. instead of being a wooden drum with tapes to carry the
sheet is made up of a series of narrow metal wheels grooved to carry a thin cord,
some of these wheels are provided with a projecting lip and each wheel having a lip
has also a gripper for taking the printed sheet from the cylinder D.
The method of operating the flyer and grippers is the ordinary well known one.
What I claim as my invention 'is ;
A cylinder printing machine constructed without an ink table and having a
pyramid of inking rollers; in combination with an "underfeed" laying on board
substantially as described.
A flyer constructed of narrow wheels carrying cords and grippers; in com-
bination with an $6 underfeed" "laying on board and a pyramid of rollers substantially
as described.
Dated this 24th day of October 1893.