Improvements in Inking Apparatus of Cylinder Printing Machines.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Inking Apparatus of 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 to be as
follows:
This invention relates to improvements in the inking apparatus of cylinder
printing machines, and has for its object the provision of easier access to the
distributing cylinder or drums and rollers, as well as the "inkers.
"
In nearly all the machines which are supplied with continuous inking, the
cylinders are placed in pyramidal form, and these have their axes in the frames
or stands which are cast in one piece.
In my present invention I construct the frames or stands in two or more parts,
so that the hinder part may be moved away from the foremost, or that nearest
the printing cylinder. The frames may be divided so as to carry one lower drum
and the upper one with its complement of distributing rollers and 2 inkers,
in the foremost portion; and one drum with 2 inkers, distributors and the ink
duct with vibrator in the hinder portion; or the upper drum and the necessary
distributors, may be included in this hinder portion, also
I find it desirable to divide the two lower drums and the 4 inkers. The hinder
portion is carried to & fro by means of suitable gearing, such as racks & pinions,
screw gear, or chains & pulleys. And when put into position for working, the
parts are firmly bolted together by screw-clamps or other suitable means.
The advantages of this plan over all others, is, that the drums and rollers are
easier got at for cleaning or adjusting; and much time is saved thereby.
Dated this 9th day of February 1897.
DANIEL T. POWELL.
Improvements in Inking Apparatus of 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
[Price 8d.]

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:―
This invention which consists in improvements in the Inking apparatus of
cylinder printing machines has its objects fairly set out in my Provisional Specifi-
cation but in order that my invention may be better understood I have appended
hereto 3 sheets of drawings. In each of these drawings like parts are indicated
by the same reference letters.
Sheet No. 1. Fig. 1 shows the pyramid form of inking as generally constructed.
P is the printing cylinder S the standards carrying cylinder bearings and Inking
apparatus. I may at once say it is immaterial whether these cylinder and inking
standards are cast together or separately. I find casting together preferable.
A¹ A3 A3 are three distributing drums in pyramidal form B is a distributing barrel
CC is the ink ductor D is a "vibrator" E E are composition rollers connecting
the drums together F1 F2 F3 F4 are "inkers" F1 F3 being in contact with Drum. A¹
F3 F4 being in contact with Drum A² G is a rack attached to the slide frame of the
machine and H is a wheel gearing into the rack I is a pinion to which is attached
a handle or Key. The line M' indicates where these standards may be divided.
In Fig. 2 the Standards are shown divided at M¹ the hinder portion K with the
ductor C, C¹, vibrator D. Barrel B drums A¹ A³ roller E' and inkers F1 & Fa
having been drawn away by the rack G Wheel H and pinion I, from the foremost
portion L in which is one drum A³ the roller F & the "inkers" F3 F4. The
dotted lines in these figures indicate another position in which the standards may
be divided, the top drum A³ being then left in the foremost part L instead of in
the hindermost K.
Sheet 2. Fig. 3 shows all the same parts again but the line Mª indicating the
point of division is differently drawn.
Fig. 4 shows this different method of dividing the standards and separating
the drums and rollers. In this method the drum A3 and both the distributors E¹ E³
as well as the barrel B and the ink ductor C, C¹, are drawn from above the
drums A1 A2 by winding back, with the rack wheel & pinion or other suitable
means, the standards N. This method has an advantage over that shown in
Figs. 1 & 2 in that it permits the drums A¹ A to be easily lifted from the
standards when necessary without taking any of the machine apart.
Sheet 3. Fig. 5 shows the same parts once more M³ showing the dividing line
and Fig. 6 still another method of dividing the standards and separating the
drums rollers &c.
In this method the part of the standards Q containing the vibrator D the
barrell B the drum A³ and the two distributors E' E are hinged, as it were, or
have an axis on the ink duct cylinder C¹ the whole being lifted up out of the way
as shown in Fig. 6, the rack wheel & pinion or other separating appliance being
dispensed with. In this method free access is obtained to the drums & rollers
and A A² may also be removed from the standards as referred to in Fig. 4. This
method is more easily applied to the smaller sizes of printing machines, as the
weight in large machines necessitates the application of mechanical contrivances
to lift the divided standards drums & rollers.
In all cases the standards are the same on both sides of the printing machine.
It is obvious that in each case the object of the invention, easier access to the
drums and rollers for cleaning or adjusting, has been attained.
When the drums and rollers have been cleaned or adjusted the standards are
brought together as shown in Figs. 1, 3, 5 and the divided parts are locked
together by means of pins clamps bolts, or other suitable contrivance.
Having now particularly described and ascertained the nature of my in-
vention and in what manner the same is to be performed I declare that what I
claim is:
In a printing machine constructed with cylindrical or pyramid inking apparatus,

page_text: the division of the standards or frames, carrying the drums rollers &c into parts,
substantially as and for the purposes as described with reference to the accom-
panying drawings.
1
d of November 1897
DANIEL T. POWELL.