Improvements in Colour Printing and in Apparatus to be employed therein.
Year: 1891

page_text: Date of Application, 17th Dec., 1891°
Complete Specification Left, 19th Sept., 1892-Accepted, 22nd Oct.. 1892
PROVISIONAL SPECIFICATION.
Improvements in Colour Printing and in Apparatus to be employed
therein.
I, JOHN LACEY DAVIES of 46 St. Mary Axe in the City of London Civil
Engineer do hereby declare the nature of this invention to be as follows:-
My invention is designed for the purpose of applying printing or other suitable
ink in a circular elliptical or other curvilinear direction to blocks or surfaces in
order to print therefrom (in contradistinction to applying ink to printing surfaces
laterally or in a direction parallel to the block or printing surface as hitherto)
with the view to producing rainbow or irridescent effects in a circular or
elliptical form.
The invention comprises the employment and use of a taper or conical roller or
rollers mounted and rotating horizontally in a suitable framework provided with a
pin or pivot which fits loosely in a socket in the centre of the block and around
which pin the roller or rollers travel and rotate.
In order to apply the ink to the conical roller for transference to the printing
block I use an inking slab having a socket in the centre to receive the said pin or
pivot around which the conical roller travels. The ink being supplied by hoppers,
rollers or ducts to this inking slab the roller is "inked-up" and it is then lifted
from the slab and used to convey the ink to the block or surface to be printed from,
which is effected in a circular or elliptical direction.
By certain dispositions arrangements and blendings of colors as supplied to the
inking slab and roller, a variety of effects may be produced and transferred to the
printing block and thence to the paper or other material in concentric circular
elliptical or other curvilinear form.
When the conical or tapper roller or rollers are desired to travel and ink the
printing block in an elliptical direction the pivot may be dispensed with and the
framework of the roller may be caused to travel in an elliptical groove, or a clip
in the framework may run upon a guide plate or rail to direct and control the
course of the roller or any well known apparatus or means may be employed to
direct the conical or taper roller in an elliptical course.
The invention may be usefully employed in connection with the production of
the so called rainbow effects on show cards and tablets.
Dated the 17th day of December 1891
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Colour Printing and in Apparatus to be employed
therein.
1, JOHN LACEY DAVIES of 46 St. Mary Axe in the City of London, Civil
Engineer, do hereby declare the nature of the 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 my invention is to apply printing or other suitable ink in a
circular, elliptical or other curvilinear direction to blocks or surfaces in order to
print therefrom (in contradistinction to applying ink to printing surfaces laterally
or in a direction parallel to a side of the block or printing surface as hitherto) with
the view to the production of designs with rainbow or iridescent effects or other
designs in a circular, elliptical or other curvilinear. form.
The invention comprises the application and use of a taper or conical roller or
..01

page_text: rollers mounted and rotating horizontally in a suitable framework provided with a
pin or pivot which fits loosely in a socket in the centre of the block and around
which pin the roller or rollers travel and rotate.
On the accompanying drawings is shewn in sectional side view such a conical
roller A having a taper according to an equilateral triangle. This roller is
mounted in the frame B so as to be free to rotate with its end gudgeons A¹ and A'
in the bearings B and B formed in the ends of the frame. B is an eye at the
centre end of the frame. This eye works on the central pivot C its lower end
being square and fitting in a square hole in the block D; or the pivot may be
attached to the block in any other suitable manner but so that the roller A, its
frame B and the pivot C can be removed bodily from the block. Or the pivot
may be a fixture (but so as not to protrude above the face of the block) and the
roller and frame removable therefrom. Or the pivot on the frame may enter
a socket fixed in the block and so that the pivot can readily be lifted out of
the socket.
In order to apply the ink to the conical roller A for transference to the printing
block I use an inking slab having a square hole or socket in the centre to receive
the pin or pivot C around which the conical roller is made to travel while holding
the frame B by the handle B. The ink being supplied by hoppers, rollers or
ducts to this inking slab, the roller A is "inked up" and is then lifted from the
slab and used to convey the ink to the block or surface D to be printed from
which action is effected by carrying the roller round thereon in the same manner
as described.
By certain dispositions, arrangements and blendings of colours as supplied to
the inking slab and thence to the roller A, a variety of effects may be produced on
the slab and transferred to the printing block 1) and thence to the paper or other
material in a concentric circular form.
When the conical roller A or rollers are desired to travel and ink the printing
block in an elliptical direction the pivot C is or may be dispensed with and the
framework B of the roller is caused to travel in an elliptical course the frame
being mounted on a slide with two guide pegs (one of them adjustable to suit
various forms of ellipse) which work in cross grooves in the centre of the block
in the manner of the ellipsograph or other known means may be employed to direct
the conical roller in an elliptical (or other curvilinear) course. The conicity of
the roller will have to be adapted to the particular elliptical (or other
curvilinear) course.
The invention may be usefully employed in connection with the production of the
so-called rainbow effects on show cards and tablets.
Having now particularly described and ascertained the nature of my said inven-
tion and the manner in which the same is to be performed 1 declare that what I
claim is -
First. The application and use of one or more conical rollers held in framing so
as to be free to rotate therein and to travel around a central pivot in a circular
direction (or otherwise in an elliptical or other curvilinear direction by means of
suitable guiding appliances) in such manner that the roller is applied to an inking
slab for being inked up while being revolved and rotated thereon in the manner
described and is then applied to a printing block for transferring the ink thereto
while being similarly revolved and rotated thereon substantially as set forth and for
the purpose of readily printing circular or other curvilinear designs.
Second. The construction of conical roller and appurtenances as described with
reference to the accompanying drawing.
Dated this 19th day of Sentember 1805
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.