An Improved Method of Inking Lithographic Stones, Zinc Plates,. Aluminium, and other similar suitable Printing Surfaces in Lithographic Printing Machines.
Year: 1895

page_text: Date of Application, 25th Mar., 1895
Complete Specification Left, 16th Dec., 1895-Accepted, 29th Feb., 1896
PROVISIONAL SPECIFICATION.
An Improved Method of Inking Lithographic Stones, Zinc Plates,.
Aluminium, and other similar suitable Printing Surfaces in
Lithographic Printing Machines.
I, SAMUEL BERNARD 107 Greville Road Southville Bristol Lithographic
Printer do hereby declare the nature of this invention to be as follows:-
A plate of iron, marble, or similar suitable material, is fixed to the carriage of
he lithographic machine, in the space between the bed or receptable for the stone,
zinc plate, aluminium or similar suitable printing surfaces, and the "damping
board," by means of screws, or bolts, in such a manner as to allow all or some of
be inking rollers to roll over, & in contact with the said plate, in the forward and
backward motion of the carriage and so refresh the surface of the rollers, enabling
he front portion or edge of the printing surface to be more efficiently inked.
The damping rollers being automatically lifted over the said plate in the
orward, and backward, motion of the carriage by means of levers.
Dated this 23rd day of March 1895
COMPLETE SPECIFICATION.
An Improved Method of Inking Lithographic Stones, Zinc Plates,.
Aluminium, and other similar suitable Printing Surfaces in
Lithographic Printing Machines.
SAMUEL BERNARD 107, Greville Road Southville Bristol Lithographic Printer
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:-
A plate of iron, steel, marble or any other suitable material is fixed to the-
carriage of the lithographic machine in the space D between the bed or receptacle
for carrying the printing surfaces A such as stone zinc plate, aluminium,-and
the damping board C by means of screws or bolts, in such a manner as to allow all
or some of the inking rollers to roll over and in contact with the said plate after
passing over the printing surface and before repassing over it and so refresh and
redistribute the ink on the inking rollers after contact with the damp printing
surface. The damping rollers being automatically lifted over the said plate as the
particular pattern of machine shall determine by means of runners on inclines.
tecnically called "risers or by levers or the like the plate as a refresher and
distributor being the subject matter of the invention.
"
Having now particularly described and ascertained the nature of my said inven--
tion, and in what manner the same is to be performed, I declare that what I
claim is
1st. That in passing over the plate the ink is refreshed and redistributed and its

page_text: printing powers, which is materially reduced by coming in contact with the damp
printing surface, is very materially increased.
2nd. That in fine printing the machine is capable of producing a larger number
of impressions at an increased speed.
3rd. That in heavy work as in posters and flat tints in chromo work "double
rolling" is rendered unnessessary.
4th. That the front portion of the printing surface is as efficiently inked as the
back portion a result which has not hitherto be attained.
Dated this 14th day of December 1895.
SAMUEL BERNARD.