Improvements in or relating to the Reciprocating Rollers and Riders for Distributing Ink on the Inkers, Distributers, and the like used in Cylinder, Letterpress, Lithographic, and other Printing Machines.
Year: 1897

page_text: Date of Application, 13th Aug., 1897
Complete Specification Left, 13th May, 1898-Accepted, 30th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Reciprocating Rollers and Riders
for Distributing Ink on the Inkers, Distributers, and the like
used in Cylinder, Letterpress, Lithographic, and other Printing
Machines.
We, ALBERT GORTON, of 10, Morecambe Street, Morecambe, in the County of
Lancaster, Architect and Surveyor, and EDWIN THOMAS GORTON, of Market Street,
Morecambe aforesaid, Printer, do hereby declare the nature of our said invention
to be as follows:-
The object of our invention is to effect improvements in appliances for distribut-
ing the ink upon the surfaces of inkers, distributers, and the like, in connection
with cylinder, letter press, lithographic, and other printing machines.
According to our invention, we fit right and left hand screws (as required) to
the shafts or spindles of the rollers, the ends of the screw bosses being bevelled.
Brackets are fitted to the frame of the machine in near proximity to the screws,
having bevelled surfaces (preferably of polished steel) at each end, with which
the bevels of the screw bosses come into contact. An adjustable plate is fitted to
the bracket, the upper end of the plate carrying a segmental portion of a screw
thread, meshing with the thread of the screw. The spindle of the roller works in
slotted bearings so as to be capable of vertical movement, and the spindle is held
down by the usual springs attached to the frame.
When the reciprocating, roller or rider is put on the machine the spindle,
revolves the screw causing it to travel in a line with its axis, until the bevelled
surfaces of the screw boss and bracket come into contact, gradually raising the
spindle and screw, until the latter runs out of gear with the fixed plate, and is
so held by the contact of the plate with the boss of the screw. On the reversal
of the motion the screw boss slides down to its normal position and travels in a
contrary direction.
By this arrangement it is impossible to put the roller on at the wrong time or
place, as its axial motion puts the screw out of gear, and again finds its correct
position when the machine returns, and keeps in its place until it is removed and
refixed.
The pitch and length of the screws vary according to the size of the machine and
the diameters of the rollers, and right or left hand screws are used, as required.
Although we have described the application of bevilled contact surfaces as a
means of raising and lowering the screws and spindles, we do not limit ourselves
thereto, as other equivalent mechanical devices may be applied for utilising the
longitudinal motions of the spindles for that purpose.
Dated 13th August 1897.
GEORGE DOWNING & SONS,
8, Quality Court, London, W.C., Agents.

page_text: Improvements in or relating to the Reciprocating Rollers and Riders
for Distributing Ink on the Inkers, Distributers, and the like
used in Cylinder, Letterpress, Lithographic, and other Printing
Machines.
We, ALBERT GORTON, of 10, Morecambe Street, Morecambe, in the County of
Lancaster, Architect and Surveyor, and EDWIN THOMAS GORTON, of Market Street,
Morecambe. aforesaid, Printer, do hereby declare the nature of our said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement: -
The object of our invention is to effect improvements in appliances for distribut-
ing the ink upon the surfaces of inkers, distributers and the like, in connection
with cylinder, letter press, lithographic, and other printing machines.
And in order that our said invention may be particularly described and ascer-
tained reference is hereby made to the accompanying drawings in which similar
letters of reference indicate corresponding parts.
Fig. 1, is a sectional view illustrating so much of a cylinder printing machine
frame as is necessary with our invention fitted thereto.
Fig. 2, is a side view of same.
Fig. 3, is a side view of a modification of the invention.
Fig. 4, is a plan view of same.
a represents the spindle of the roller b, carried in slotted bearings c formed in
the frame d. e is a screw threaded boss fixed on one or both end or ends of the
spindle, the edges of the screw bosses being bevelled at f as shown. g is an adjust-
able bracket carrying a plate h, also adjustable, the upper end of which plate is
formed as a segment of a screw thread, meshing with the thread on the boss e.
Each end of the bracket is formed with bevelled surfaces i (preferably of polished
steel) with which the bevelled edges f of the boss e comes in contact when at
either end of the thread whereby a lifting motion is imparted to the spindle a, the
latter being normally held down by the usual springs or by gravity.
When the roller or rider is put on the machine the spindle and screw boss
revolve causing the roller to travel in a line with its axis, as well as transversely
thereto, until the bevelled surfaces of the boss and bracket come into contact,
gradually raising the roller until it runs out of gear and is so held until the return
motion of the travelling bed or inkers commences.
In the modification shown in Figs. 3 and 4 the bracket is made to yield instead
of the roller being lifted. In this case the brackets 9 are formed with an arm gl
pivoted at to the frame, the spindles a of the rollers being mounted in fixed
bearings. Under the brackets compression springs are fitted which hold the
brackets in their normal raised position. These springs are adjustable as shown.
The action of this arrangement is similar to that previously described, except
that the roller is not lifted but is allowed to remain in contact with the inkers or
distributers and to revolve therewith, the bracket yielding to the downward pressure
caused by the contact of the bevelled surfaces.
In both arrangements the roller is compelled to find its correct position however
the roller may have been put on, the pitch, length and direction of the screw threads
being as found best suited to the particular machine to which our invention is to
be applied.
Although we have described the application of bevelled surfaces as a means of
raising and lowering the screws or throwing the screws out of gear with the seg-
mental thread, we do not limit ourselves thereto, as other equivalent mechanical

page_text: devices may be employed, the essential feature of our invention being the utilisa-
tion of the axial or longitudinal motions of the rollers for governing or correct-
ing the position of the rollers and riders in order to secure a superior distribution
of the ink.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
1. The improved method of and means for operating the reciprocating rollers
and riders for distributing the ink on the inkers, distributers, and the like, used in
cylinder, letter press, lithographic and other printing machines substantially as
specified.
2. In printing machines as aforesaid, the application and use of the screw boss e
fixed on the spindle of the roller or rider adapted to mesh with a segmental thread
adjustably fixed to an adjustable bracket, a pair of bevelled surfaces on such boss
and corresponding bevelled surfaces on such bracket, arranged and operating in
the manner substantially as hereinbefore described and shown by Figs. 1 and 2
of the drawings.
3. In printing machines as aforesaid the application and use of a screw boss e
fixed on the spindle of the roller or rider, bevelled surfaces or edges on such boss,
segmental thread plate adjustably fixed to a yielding bracket, arranged and operat-
ing in the manner, substantially as hereinbefore described and illustrated by
Figs. 3 and 4 of the drawings.
1011
1000