Improvements in or relating to Saturators for Ammonium Sulphate, Dye Vats, Tanks, Baths, and similar Receptacles for Acids.
Year: 1899

page_text: Date of Application, 15th Mar., 1899-Accepted, 6th May, 1899
Improvements in or relating to Saturators for Ammonium Sulphate,
Dye Vats, Tanks, Baths, and similar Receptacles for Acids.
I, FRANK HIGGINSON ROWLETT, of 79, Wellington Street, Leicester, Builder of
Saturators and Lead Burner, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to saturators such as are used in the manufacture of
sulphate of ammonia, dye vats, tanks, baths and similar receptacles for containing
acids.
The invention comprises an improvement in the construction thereof, which
admits of the said receptacles being enlarged or repaired with facility while it
obviates many of the disadvantages incidental to those of ordinary construction.
My invention will be understood from the following further description in
reference to the accompanying drawing in which,
Figure 1 is a horizontal section, and,
Figure 2 a partial elevation of a structure constructed in accordance with this
invention.
Figures 3 and 4 are details on a larger scale than the other figures.
In the building of structures of the type mentioned and for the purposes named
I employ metal (preferably iron) plates A to form the exterior thereof and plates
of Irad B which form the interior or lining thereof.
Each of these plates (iron and lead) has its marginal edge all round (i.e. on each
of its sides) turned up at a right angle and holes bored through the turned up edge
at intervals apart.
The metal and lead plates are then placed parallel to and one against the other
(the lead over the iron) and for building a structure such as hereinbefore referred
to the turned up edge of one pair of plates is placed against the turned up edge of
another pair of plates so that the holes therein are coincident and the edges of
the lead facing plates are in contact.
Screw bolts are then passed through the holes and nuts tightened thereon
against the external metal plates A thereby forcing the two lead facing plates in
close contact and connecting them together to form a liquid tight joint.
The space or interstice which is formed at the meeting of the edges of each
pair of plates is by preference filled with lead which is burnt therein to form a
complete joint and also a continuous smooth surface or lining to the interior of
the structure.
The angle of that side of the plates which meets at and forms the angle of the
structure is different from that of other sides of the plates as will be observed and
readily understood, upon reference to Figs. 1 and 4.
Referring to the drawings A represents the iron plates which form the exterior
of the structure and B the lead plates forming the interior or lining thereof.
A and B are the turned up marginal edges of the iron and lead plates respec-
tively which to form a structure are placed together (the lead in contact) and

page_text: tightened against one another by bolts C passing through holes therein and having
nuts on one or each end.
D is the lead which fills the interstice between each pair of plates and is burnt
in, as will be well understood.
The plates are turned up at right angles (Fig. 3) except where they meet to form
the angle of the structure when the preferred angle is as shown at Fig. 4.
A structure built of plates having their marginal edges turned outwardly and
bolted together in the manner described admits of any individual plate being
removed for repairing and the said structure may also be enlarged by the addition
of other plates or reduced by the removal of plates which is an important
advantage.
E represents the usual strengthening webs of a metal plate.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. In the construction of saturators, dye vats, tanks, baths, and analogous
receptacles the use or employment of metal and lead plates combined together
and having their marginal edges turned up at an angle on each of their sides
substantially as described.
2. A structure or receptacle consisting of a series of pairs of iron and lead plates
having their marginal edges turned up all round and connected together by screw
bolts passing through the said marginal edges of each adjacent two pairs of such
plates and the interstices between each pair of plates filled with lead substantially
as described.
3. A structure or receptacle constructed in sections each section comprising an
iron plate forming part of the exterior of the structure or receptacle and a lead
plate forming a part of the interior or lining thereof, each plate having its marginal
edge turned up at an angle and placed one over the other and connected together
substantially in the manner and for the purpose described.
4. The improvement in the construction of structures or receptacles substantially
as herein before described and illustrated in the accompanying drawing.
Dated this 13th day of March 19000
Witness:-
E. N. LEWIS,
FRANK HIGGINSON ROWLETT,
Berridge Street Chambers, Leicester.
Boult & Wade,
Agents for the Applicant.