Improvements in connection with the Inking Apparatus of Printing Machinery.
Year: 1894

page_text: 1
Date of Application, 8th Oct.,, 1894
Complete Specification Left, 6th July, 1895-Accepted, 10th Aug., 1895
PROVISIONAL
SPECIFICATION.
Improvements in connection with the Inking Apparatus of Printing
Machinery.
We ARTHUR WATKINSON and FREDERICK WILLIAM MUSGRAVE both of
The Bremner Machine Company Ltd., Otley in the County of York Printers
Engineers, do hereby declare the nature of this invention to be as follows:-
Our invention refers more particularly to that class of inking apparatus in which
the ink is transferred from the inking cylinder to a distributing drum, and from
the latter by means of a carrying roller to the sets of inking rollers which
transfer the ink to the printing forms; but the invention is also applicable to
any other form or arrangement of inking apparatus in which superposed sets of
inking rollers are provided, the lower set transferring the ink to the printing
forms, whilst the upper sets serve to render the distribution of the ink over the
Burfaces of the bottom rollers more uniform.
Now the object of our invention is to enable the lowest set of rollers, i.e. those
which directly come in contact with the printing forms, to be taken out or got at
for cleaning or other purposes without dismounting the superposed sets; whilst
each set of rollers can be raised out of contact with those on which they rest, and
the bottom set clear off the printing form or, slab, whenever the machine is brought
to rest.
To render our description clearer we shall describe our invention with reference
to an inking apparatus comprising a top set, an intermediate set, and a bottom
(or "form") set of rollers. The object of our invention we effect by first, raising
the top set clear off the intermediate set and then raise both sets together to such
a height that they are clear off, the lower or form set of rollers, which can now be
readily got at for removal, cleaning or other purposes. Immediately the inter-
nediate set is raised clear off the bottom (or "form") set, the latter is also arranged
to rise clear off the printing form.
T
Our invention may be carried' out in the following manner. We provide on
each side of the machine a long vertical sliding bar, having a rack formed at
its lower end. These bars can be raised by rotating a shaft having a pair of
pinions gearing with the before mentioned racks.
This shaft can be rotated direct by hand lever, with intermediate gearing if
desirable to obtain sufficient power; and the weight of the sliding bars and rollers
may also if desired be balanced by a balance weight suspended from a pulley on
the pinion shaft. The upper end of these vertical shafts carry the bearings for the
top set of rollers, and by means of a pin and slot hole arrangement, the inter-
mediate set of rollers, carried from a cross bar, cau be caused to rise with the said
vertical bars after the latter have moved so far as just to reise the top set clear off
the intermediate set of rollers.
1
The motion of the rack mechanism may be then continued until both the top
and intermediate sets of rollers, have been raised so far from the bottom (or formn)
set of rollers, that the latter can be got at without inconvenience:
The sides of the vertical sliding bars may have au incline formed in a suitable
position, which is arranged to come in contact with a pin on a longitudinal bar
(at each side of the machine) said longitudinal bar being carried by hinged levers
at the ends.
N

page_text: These levers by means of the inclined portion of the vertical bars pushing
against a pin in each of the longitudinal bars, cause the hinged levers to move from
an inclined to a vertical position, thereby raising the longitudinal bars, which
coming close beneath the axles of the bottom set of rollers raise these also. It
will be understood that the raising of the bottom set of rollers from the printing.
form or slab takes place immediately after the intermediate, set of rollers has been
raised clear off them, so that it is not necessary to raise the top and intermediate
sets of rollers to the full extent, except at such times as it is, desirable to do so.
Dated this 6th day of October 1894.
J. CLARK JEFFERSON,
2 East Parade, Leeds, Agent for Applicants.
Improvements: in connection with the Inking Apparatus of Printing
Machinery.
We ARTHUR: WATKINSON and FREDERICK WILLIAM MUSGRAVE both of
The Bremner Machine Company Ltd. Otley in the County of York Printers
Engineers 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:-
Our invention refers more particularly to that class of inking apparatus, in
which the ink is transferred from the inking cylinder to a distributing drum and
from the latter by means of a carrying roller to the sets of inking rollers which
transfer the ink to the printing forms; but the invention is also applicable to any
other form or arrangement of inking apparatus, in which sets of superposed inking
rollers are provided, the lower set' transferring the ink to the printing forms,
whilst the upper sets serve to render the distribution of the ink over the surfaces
of the bottom rollers more uniform, for example in slab inking machines.
Now the object of our invention is to enable the lowest set of rollers, i.e. those
which directly come in contact with the printing forms, to be taken out or got at
for cleaning or other purposes without dismounting the superposed sets, whilst
each set of rollers can be raised out of contact with those on which they 'rest, and
the bottom set clear off the printing form or slab, whenever the machine is brought
to rest.
1
To render our description clearer we shall describe our invention with reference
to an inking apparatus, comprising a top set, an intermediate set, and a bottom
(or form) set of rollers. The object of our invention we effect, by first raising the
top set clear off the intermediate set, and then raise both sets together to such a
height that they aro clear off the lower or "form" set of rollers, which can now
be readily got at for removal, cleaning, or other purposes. Immediately the
intermediate set is raised clear off the bottom or forin set, the latter is also
arranged to rise clear of the printing form.
Our invention may be carried out in the following' manner. We provide on
each side of the machine a long vertical sliding bar, having a rack formed at its
lower end. These bars can be raised by rotating a shaft having a pair of
pinions gearing with the before mentioned racks. This shaft can be rotated direct
by a hand lever with intermediate-gearing if desirable, to obtain sufficient power,
and the weight of the sliding bars and rollers may also if desired be balanced by
a balance weight suspended from a pulley on the pinion shaft. The upper ends of
these vertical sliding bars carry the bearings for the top set of rollers, and by
'means of a pin and slot hole arrangement, the intermediate set of rollers carried
from a cross bar, can be caused to rise with the said vertical bars after-the

page_text: latter have moved so far as just to raise the top set. clear off the intermediate set;
of rollers.
The motion of the rack mechanism may be then continued until both the top and
intermediate sets of rollers have been raised so far from the bottom (or form) set
of rollers, that the latter can be got at without inconvenience.
The sides of the vertical sliding bars may have an incline formed in.a. suitable
position, which is arranged to come in contact with a pin on a longitudinal, bar at
each side of the machine; said longitudinal bar being carried by hinged levers from
the ends. These levers by means of the inclined portion of the vertical bars
pressing against the pin in each of the longitudinal bars, causes the hinged levers
to move from an inclined to a vertical position, thereby raising the longitudinal
bars, which coming close beneath the axles of the bottom set of rollers, raise these
also. It will be understood. that the raising of the bottom set of rollers from the
printing form or slab takes place immediately after the intermediate set of rollers
has been raised clear off them, so that it is not necessary to raise the top and'
intermediate sets of rollers to the full extent, except at such, times as it is desirable
to do so..
We wish it to be understood that the above,, which is illustrated in the accom-.
panying drawing, is not the only manner in which our invention may be carried out.
For example the bearings for the top and intermediate rollers may be formed on or
attached to cross bars, (or on the levers to be herein immediately after mentioned);
the cross bars being fitted loose on the previously mentioned. vertical rods, that is
capable of a slight vertical movement on and relatively to the rod. Levers are
hinged to the outer ends of the cross bars and pass beneath the axles of the rollers
close to the bearings, or carry the said bearings. The inner ends of, these levors
extend towards the vertical rods, and when the latter rise, pins. or projections on;
the same catch against the ends of these levers, thereby lifting the axles and rollers.
directly, or the bearings; so that, the rollers are slightly lifted with the first part.
of the upward movement of the vertical rods, without lifting the cross bars. By
means of pins or lugs on the top and intermediate cross bars, (which pins or, ,lugs
are caught by the said levers immediately after the above slight lift of the rollers),
the further rise of the vertical rods also carries the top and intermediate cross bars.
The bearings for the bottom rollers are carried on the horizontal arms of bell'
crank levers, the vertical arms of the levers being connected by horizontal slide
rods, the inuer ends of which rest against the sides of the vertical rods. The
vertical rods are thickened for a considerable length commencing immediately
below the horizontal slide rods just mentioned, so that immediately the top and
intermediate rollers have been raised,-
-so that the former are out of contact with
the latter, and the latter out of contact with the bottom rollers, the swell or
thickening of the vertical side rods pushes out the horizontal bars, lifting the
bottom rollers out of contact with the form, and holds them thus slightly raised,
during the further ascent of the vertical rods and the top and intermediate rollers.
The slight lift of the top rollers prior to the lifting of the intermediate rollers, as
will be evident, depends only on suitably adjusting the position of the before
mentioned pins or lugs on the vertical rods.
The accompanying drawing illustrates the first described method of carrying
out our invention, and is a side elevation of part of a printing machine to which
our invention is applied. aa¹ are the top rollers. bb are the intermediate rollers,
and cc are the bottom or from rollers. d is one of the vertical sliding bars
provided with a rack into which gears the pinion e on the cross shaft g.
A large
toothed wheelf on the same shaft gears with the pinion on the shaft i, the latter
being rotated by means of the hand lever j. The vertical bar d can be retained in
its vertical position by dropping the catch into a notch on the boss of the lever j
or the pinion h.
The cross bark attached to the upper end of the vertical bar d carries the
bearings mm² for the top rollers.a a'. The bracket plate n, which fits loosely over
the sliding rod d, carries the bearings oo' for the intermediate rollers bb¹. By

page_text: means of pins p, attached to the vertical sliding rod d, passing through slot holes
in the bracket plate n, the vertical rod d can be raised lifting the top rollers a a
slightly above the intermediate rollers 66 before commenoing to lift the bracket
plate n. ris a longitudinal bar, carried at the ends by means of the short hinged
levers s, and situated close to the bearings of the bottom rollers. is a pin or
antifriction roller attached to the bar r, and which on the rise of the vertical rod d
is pushed back by the swell u on the latter; whereby the bar r, is pushed back
and at the same time slightly raised, and catching beneath the axles of the
bottom rollers cc also raises these. A recess in the sliding rod 'd, allows the
rollers c¹ to be lowered on to the form; whilst the top and intermediate rollers
are kept raised at some height.
Having n now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed' we declare that what we'
claim is :-
1. In printing machines the use of sets of superposed inking rollers characterized
by an arrangement whereby, commencing from the top, the rollers are raised
successively clear off those immediately beneath and the bottom rollers clear off
the printing form or slab, and afterwards the top and intermediate rollers are raised
together to any desired height whilst the bottom rollers remain stationary in the
raised position for the purpose specified:
1
2. The modification of Claim 1 'whereby the bottom rollers can be lower on to
the printing form or slab whilst the top and intermediate rollers are retained in
their raised position.
.
3. In printing machines having sets of 'superposed inking rollers, the combination
comprising vertical sliding rods such as d, operated by toothed or other gearing,
and carrying at their upper ends fixed and loose cross pieces or brackets, such as k
and', these latter carrying respectively the bearings for the top and intermediate
rollers, the bracket & being provided with slot holes 9, in which fit pins:p attached
to the vertical rods d, hinged bars r, actuated by swells on the rods d and pins or.
runner studs ton said bars r, so as to raise the axles or bearings of the bottom
rollers, all substantially as herein set forth and illustrated.
4. In combination with Claim: 3 the means for lowering the bottoin rollers on to
the printing form or slab, whilst the top 'and intermediate rollers are in a raised
position.
5. In printing machines having sets of superposed inking rollers, the means
substantially as herein set forth whereby the rollers are successively raised clear of
those immediately beneath and the bottom rollers clear of the printing form or
slab and afterwards the top and intermediate rollers raised together to any desired
height whilst the bottom rollers remain stationary in the raised position, substan-
tially as an for the purpose or purposes specified..
Dated this 5th day of July 1895.¨`
J. CLARK JEFFERSON,
2 East Parade, Leeds, Agent for Applicants..