An Improvement in Ink Distributing Apparatus for Printing Machines.
Year: 1897

page_text: Date of Application, 19th June, 1897-Accepted, 31st July, 1897
CUMTEIL
DILUITICAIN.
An Improvement in Ink Distributing Apparatus for
Printing Machines.
1, WILLIAM BURTON YATES, of Bow Lane Ironworks, Preston, in the County of
Lancashire, 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 ink distributing rollers which are usually set at an angle to the line of travel
of the forine table so that they may have a longitudinal motion as well as rotation
when they are caused to revolve by frictional contact with the ink table are rapidly
worn. In some cases these rollers are caused to rotate independently.
My invention relates to an arrangement of the bearings of these rollers so that,
while they are independently driven in accordance with the travel of the ink table
their obliquity can be varied within certain limits, as I shall describe referring to the
accompanying drawings.
Fig. 1 is a side view, Fig. 2 is an end view of part of a printing machine and two
sets of ink distributing rollers as shewn in plan in Fig. 3.
On the side frame of the machine I mount two pulleys G. which is in a middle
position under the distributing rollers, and M at a distance somewhat greater than
the extent of travel of the table, to which I fix as at h a belt H which passes round
the pulleys.
On the shaft of G is a toothed wheel F which gears with intermediate pinions E,
these gearing with pinions D on the axes of rollers A each of which lies between two
distributing rollers K bearing on the ink table but does not itself bear on the
ink table.
The axis at one end of each of the rollers A is journalled in a bearing B which can turn
on a vertical axis b carried in a bracket C, this vertical axis being in a plane passing
through the middle of the width of the pinion D, so that the teeth of this pinion
and of the intermediate pinion E with which it gears being made to taper a little
from the middle to a somewhat less thickness at each side, the pinion D can be turned
a little either way on the vertical axis b, thus varying the obliquity of the roller A
and of the rollers K on each side of it. As the ink table moves to and fro
with the belt H causing the pulley G and the wheel F to turn backwards and forwards,
the rollers A are thus caused to turn backwards and forwards driving by frictional
contact the rollers K which bear upon the ink table, and are thus made to revolve in
accordance with the travel of the forme, without being subject to the wear which
they undergo when they are driven by frictional contact with the ink table.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I
claim is:
In a printing machine, the combination of a pair of parallel ink distributing rollers
with an intermediate roller which does not bear upon the ink table, but which is

page_text: driven by suitable gear from a belt attached to the reciprocating table of the machine
and has its one end journalled in a bearing capable of turning on a vertical axis
situated in the middle plane of the pinion on the roller, substantially as and for the
purpose set forth.
ABEL & IMRAY,
Agents for the Applicant.