Improved Damping Table for Lithographic Printing Machines.
Year: 1897

page_text: Date of Application, 9th Dec., 1897
Contato Onnnifination Inft and luns 1900
Anconiad
23rd July 1900
Date of Application, 9th Dec., 1897
Complete Specification Loft, 2nd June, 1900 Accepted, 23rd July, 1809
PROVISIONAL SPECIFICATION.
Improved Damping Table for Lithographic Printing Machines.
ARTHUR BROWN, Printer, No. 6, Savell Street, Albion Road, Stoke Newington,
LOUIS HEALE, WILLIAM MILES KIDSTON, 24, Furnival Street, Holborn, Dealers
in Printers Materials, trading as Charles Stewart & Co., do hereby declare the
nature of this invention to be as follows:
-
The damping board of our invention is composed of a base of wood braced by
side and bottom bars or strainers and metal tics to produce rigidity in conjunction
with side strips of iron.
A sheet of aluminium forming a reservoir like table bolted down upon the wood
base serves to retain water on the aluminium as a kind of trough over which
moleskin as an absorbent of water is strained, said moleskin being held tightly
without liability to crease or tear by a rod and ratchet wheel into which a pawl
is allowed to drop to hold the moleskin at the proper tension.
The fore and aft ends of the wooden frame are inclined for the gentle rise and
fall of the damping rollers while entering upon and when leaving the table in their
reciprocating action.
We
Ve prefer to make some of the parts in brass to prevent corrosion, particularly
those parts which come into contact with the water.
D
11.
OLL 1
1007
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Arthur Brown, Louis Heale, and
William Miles Kidaton.
COMPLETE SPECIFICATION.
Improved Damping Table for Lithographic Printing Machines.
We, ARTHUR BROWN, Printer, 6, Savill Street, Albion Road, Stoke Newington,
LOUIS HEALE, WILLIAM MILES KIDSTON, 24, Furnival Street, Holborn, Dealers
in Printers' Material, trading as Chas. Stewart & Co., do hereby declare the nature
of this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement:-
This invention relates to an improved damping table for lithographic printing
machines.
Our invention will be more clearly understood by reference to the annexed
drawings

page_text: Figure 1 perspective elevation of the damping table with part of the moleskin
removed. Figure 2 section through the line ab thereof.
The reciprocating damping board of our invention and as shown is composed of
a base of wood A braced by bars B and bottom bars or strainers C and metal lies
to produce rigidity in conjunction with side strips of iron E.
A sheet of aluminium F forming a reservoir like surface and free from corrosion
is secured down upon the wood base A and serves, by the side strips E, the top
edges of which are slightly higher, to retain water on the aluminium, as a kind of
trough over which Hanuel layers covered by moleskin G as an absorbent of water
is strained, said moleskin being held tightly without liability to crease or tear by
1 split rod or two half round bars H and ratchet wheel I into which a pawl J is
allowed to drop to hold the moleskin at the proper tension, the straining of the
moleskin being offected by a key or spanner acting on the nut K.
The fore and aft ends I, L, of the wooden frame as affixable strips are inclined
for the gentle rise and fall of the damping rollers while entering upon and when
leaving the table in their reciprocating action.
While the board is travelling the rollers bear on the table and the moleskin is
pressed down upon the aluminium and most of the water squeezed out, which
however becomes re-absorbed by the moleskin after the table has passed.
We prefer to make some of the parts, such as the top edges of the side strips E, 1
of brass to prevent corrosion i.e. those parts which come into contact with the
water.
An easy way of securing the otherwise free end of the moleskin is to pass it
over, by slits, the projecting ends M, M. of the strainer bars C, C, then by
wrapping the moleskin half around the back strip L both the back strip and the
moleskin become fixed at that part of the table.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we
claim is:-
.
1. The particular construction of damping table for lithographic printing
machines as represented by the accompanying drawing.
2. Constructing damping tables for lithographic printing machines of a wooden
base, an aluminium top covered by moleskin strained over the surface in the
manner described and substantially as shown.
AT
1000
The 2nd day
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Arthur Brown, Louis Heale, and
William Miles Kidston.