Year: 1888

page_text: Date of Application, 24th Jan., 1888
Complete Left, 26th May, 1888
Complete Accepted, 29th June, 1888
I, SALVATORE ORLANDO, of Livorno, in the Kingdom of Italy, Engineer, do
hereby declare the nature of this invention to be as follows:-
My invention relates to steam boilers and generators.
In boilers of the locomotive type or in cylindrical boilers in which the tubes are in
continuation of the furnaces, as is often the case in boilers for war and merchant
ships and for fixed engines, it frequently happens that owing to the expansion and
contraction of the tubes, the latter slip in the tube-plates thereby occasioning
leakage.
The object of my invention is to obviate this inconvenience and to this end I
employ what I term an elastic joint, as hereinafter described.
The elastic joint is composed of a metal belt of U or semicircular shape in
transverse section and which is applied to the external tube-plate and connects it
with the extremity of the boiler.
Owing to the shape of the joint the tube-plate follows the expansions and con-
tractions of the tubes without any damage to the rivetting, and the extremities of
the tubes remain firmly fixed in the tube-plates.
By the use of this invention the tubes may be screwed into the tube-plates, or
they may be fixed by any other system and they may constitute stay tubes. This
however is not absolutely necessary for the good working of the elastic joint. In
case however the tubes should be secured according to one of the known systems,
the stay tubes at the part where they are not screwed should have a thickness about
equal to that of the common tubes in order that the displacement of the plate may be
uniform at all points.
The elastic joint can be either copper, steel, iron or any other suitable metal.
The upper part of the joint may be provided with an enlargement in order to allow
the escape of any steam which might accumulate at the upper part of the joint. This
effect can however be obtained by putting the steam-dome of the boiler in communi-
cation with the upper extremity of the elastic joint.
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: I SALVATORE ORLANDO, of Livorno, in the Kingdom of Italy, Engineer, 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:-
My invention relates to steam boilers or generators.
In boilers of the locomotive type, or in cylindrical boilers in which the tubes are
in continuation of the furnaces, as is often the case in boilers for war and merchant
ships and for fixed engines, it frequently happens that, owing to the expansion and
contraction of the tubes, the latter slip in the tube-plates, thereby occasioning
leakage.
The object of my invention is to obviate this inconvenience, and to this end I
employ what I term an elastic joint, as hereinafter described.
In order to enable the invention to be fully understood I will describe how
it can be carried into practice by reference to the accompanying drawing, in
which:-
Figure 1 is a longitudinal section of a steam boiler or generator provided with
an elastic joint, according to my invention, for allowing of the expansion and con-
traction of the tubes.
Fig. 2 is an end elevation of Fig. 1; and,
Fig. 3 shews the right hand portion of figure 1 drawn to an enlarged scale.
Similar letters in all the figures indicate similar parts.
The elastic joint a is composed of a metal belt of U or semicircular shape in
transverse section, which is applied to the external tube-plate b and connects it with
the extremity of the boiler.
Owing to the shape of the joint a the tube-plate 6 follows the expansions and
contractions of the tubes c, c without any damage to the rivetting, and the extremities
of the tubes remain firmly fixed in the tube-plates.
By the use of this invention the tubes c may be screwed into the tube-plates b, or
they may be fixed by any other system, and they may constitute stay tubes. This,
however, is not absolutely necessary for the good working of the elastic joint a. In
case, however, the tubes should be secured according to one of the known systems,
the stay tubes, at the part where they are not screwed, should have a thickness about
equal to that of the common tubes, in order that the displacement of the plate may be
uniform at all points.
The elastic joint can be either copper, steel, iron or any other suitable metal.
The upper part of the joint a may be provided with an enlargement d, in order to

page_text: allow the escape of any steam which might accumulate at the upper part of the joint.
This effect can, however, be obtained by putting the steam-dome of the boiler in
communication with the upper extremity of the elastic joint.
said
Having now particularly described and ascertained the nature of my
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. A steam boiler or generator, the tube plate of which is flexibly connected
therewith, for the purpose specified.
2. In a steam boiler or generator the improved elastic or flexible joint, constructed
substantially as hereinbefore described and illustrated in the accompanying drawing,
for the purpose specified.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.