AN IMPROVED CONSTRUCTION OF VESSELS LINED WITH LEAD OR OTHER METAL OR ALLOY
Year: 1884

page_text: We, CHARLES JOHN GALLOWAY and JOHN HENRY BECKWITH both of Knott
Mill Iron Works, Manchester in the county of Lancaster Engineers, do hereby
declare the nature of our invention for "AN IMPROVED CONSTRUCTION OF VESSELS
LINED WITH LEAD OR OTHER METAL OR ALLOY "
to be as follows:-
Our invention relates to means of providing iron or steel vessels with a lining of
lead or other metal or alloy so attached to the shell as to resist the deteriorating
effects of unequal expansion and contraction of the different metals. For this
purpose, we provide the shell with studs or strips projecting inwards, these being
preferably of dovetail section and being screwed or rivetted to the shell; or we
drill through the shell holes, preferably countersunk. on the outside. We cast the
lining metal on the shell thus prepared on which it is held securely by the studs or
strips projecting into the body of the lining netal, or by the portions of the lining
metal projecting into the holes of the shell, these portions being, if desired, more
securely held by rivetting or burring them over outside the shell. The shell may
be made entire and lined throughout as above described, or it may be made in
sections, each lined separately. In the latter case, the lining is preferably extended
over the flanges of the sections, so that when they are bolted together, there is no
part of the shell left exposed to the action of substances contained in the vessel.
Dated this 9th dow of New 1001
ABEL & IMRAY,
Agents for the Applicants,
28, Southampton Buildings,
London, W.C

page_text: We, CHARLES JOHN GALLOWAY, and JOHN HENRY BECKWITH, both of Knott
Mill Iron Works, Manchester in the County of Lancaster, Engineers, do hereby
declare the nature of our invention for "AN IMPROVED CONSTRUCTION OF VESSELS
LINED WITH LEAD OR OTHER METAL OR ALLOY" and in what manner the same is
to be performed to be particularly described and ascertained in and by the following
statement:-
Our invention relates to means of providing iron or steel vessels with a lining of
lead or other metal or alloy so attached to the shell as to resist the deteriorating
effects of unequal expansion and contraction of the different metals. For this
purpose, we provide the shell with studs or strips projecting inwards, these being
preferably of dovetail section and being screwed or rivetted to the shell; or we
drill through the shell, holes, preferably countersunk on the outside. We cast the
lining metal on the shell thus prepared on which it is held securely by the studs or
strips projecting into the body of the lining metal, or by the portions of the lining
metal projecting into the holes of the shell, these portions being, if desired, more
securely held by rivetting or burning them over outside the shell. The shell may
be made entire and lined throughout as above described, or it may be made in
sections, each lined separately. In the latter case, the lining is preferably extended
over the flanges of the sections, so that when they are bolted together, there is no
part of the shell left exposed to the action of substances contained in the vessel.
Fig. 1 of the accompanying drawing shews a longitudinal section and Fig. 2
a cross section of a lead lined pulp boiler the lining of which is attached to the
shell by casting according to our before described invention, the mode of attach-
ment indicated at the parts A being shewn in the enlarged section and plan at
Figs. 3 and 4, while that indicated at B is shown in the enlarged section and plan
at Figs. 5 and 6, and that indicated at C is shewn in the enlarged section and plan
at Figs. 7 and 8.
"
In the arrangement shewn at A undercut or dovetail studs a are rivetted at
certain distances apart to the shell b so that on casting on the lining c of lead or
other metal or alloy, this will be securely held against the shell by the studs
imbedded therein. In the arrangement at B the rivets a serve to secure to the
shell 6 undercut or dovetail strips a³, on to which the lining c is cast, at C the
shell b is forined with holes into which the lead runs when the lining c is cast on,
the metal projecting through the holes being rivetted over as shown at c'. For
facilitating the casting on of the lining, the boiler shell is made with the
hemispherical ends secured to the cylindrical part by flanges and bolts, and the
cylindrical part is also divided longitudinally into two parts, secured together by
flanges and bolts, the joints being covered by the lead lining.
At D the lining is secured to the metal of the trunnions by forming undercut or
dovetail recesses in the latter into which the metal of the lining is run.

page_text: 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
Securing a lining of lead or other metal or alloy to iron or steel vessels by
providing the shell of the vessel with internal projections, recesses or holes and
casting the metal forming the lining on to the shell so prepared, so that the lining
is held on by the said projections being imbedded therein or by the metal of the
lining being made to enter the said recesses or holes, substantially as herein
described.