AN IMPROVED TUBE STOPPER FOR MARINE AND OTHER BOILERS
Year: 1884

page_text: I SAMUEL ALBERT JOHNSON of 24 Glengall Road in the parish of Poplar and
County of Middlesex, Marine Engineer do hereby declare the nature of my
Invention for "AN IMPROVED TUBE STOPPER FOR MARINE AND OTHER BOILERS,"
to be as follows:-
By this Invention as in common with all other attempts and proposals to
properly secure and stop leaky Tubes in Marine and other Boilers, I propose to do
so in a more simple, rapid and effective manner, as follows:-
I take or provide in the first instance a rod. or bar of iron having a T head
formed thereon and suitably bevilled and shaped at one end to meet and work into
a wedge shaped ring of metal also suitably formed and tapered and part of a bevilled
circular washer or disc of Metal so arranged as to be permitted to traverse longi-
tudinally on the rod or bar, behind which I provide a ring or rings of India Rubber
or other suitable elastic yielding medium or inaterial of suitable proportions,
behind which I propose to place a similar circular bevilled washer or disc of inetal,
being likewise loose or free to traverse on the rod or bar, having a nut or washer
firmly fixed on the aforesaid horizontal rod or bar for it to work against and for
the purpose as hereinafter described.
At a suitable distance on the said horizontal rod or bar I provide a further nut
or washer likewise firmly secured on the aforesaid horizontal rod or bar having a
similar bevilled circular washer or disc of metal as that described to traverse
longitudinally on the rod-or bar, behind which I likewise place a ring or washer of
India Rubber or other suitable medium and a further circular disc or washer of
metal to act against the same having a wedge shaped ring of metal suitably formed
and tapered and fixed thereto to meet in a similar manner as at the other end
a cross or T head into which it works, as at both ends, in the following manner,
viz:-
☑
At the front of the rod or bar which I propose to form with a square head
having a suitable thread formed thereon, into which a nut is provided and works,
so that when the rod or bar referred to having the square or T head contained
thereon with their circular bevilled washers or discs and the intermediate ring or
rings of India Rubber or other material between each as described together with
the nuts are led or forced into the tube requiring to be stopped, that the same is
instantly effected by means of two separate spanners actuated or employed in

page_text: opposite directions, one upon the square formed head of the rod, bar or spindle
having a stop nut thereon and the other in the contrary direction upon the cross
head or. T nut working and traversing upon the rod; so that with an approach to
a quarter turn or nearly so and at one combined action, that in the case of the
fixed T head at the one end and the loose T head at the other end of the rod or
bar, being actuated in one direction and in the latter case it becomes firmly jammed
and secured for the purpose intended by the stop nut and that of the wedge
shaped ring of metal suitably formed and tapered with and part of each of the two
bevilled circular washers as described, being actuated in the opposite direction
and into which they take or slide working simultaneously and thus causing an
immediate expansion of the elastic mediums interposed between each bevilled
circular disc or metallic washer as before described, which is done almost instan-
taneously and secured effectually, added to which the combined pressure of steam
and water which would be contained between the metallic bevilled discs would
further tend to keep them in a longitudinal direction tight and apart and further
assist and secure the method of mechanically stopping leaky Tubes as herein
referred to and described, thus creating and securing a combined self acting Tube
Stopper for Marine and other Boilers.

page_text: COMPLETE, SPECIFICATION.
SAMUEL ALBERT JOHNSON of 24 Glengall Road, Poplar, Middlesex, Marine
Engineer, do hereby declare the nature of my invention for AN IMPROVED TUBE
STOPPER FOR MARINE AND OTHER BOILERS" and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
By this Invention as in common with all other attempts and proposals to
properly secure and stop leaky Tubes in Marine and other Boilers, I propose to do
so in a more simple, rapid and effective manner as follows:-
I take or provide in the first instance a rod or bar of iron or other metal having
a T head formed thereon and suitably bevilled and shaped at one end to meet and
work into a wedge shaped ring of metal also suitably formed and tapered, and part
of a bevilled circular washer or disc of Metal so arranged as to be permitted to
traverse longitudinally on the rod or bar, behind which I provide a ring or rings
of India Rubber or other suitable elastic, yielding medium or material of suitable
proportions, behind which I propose to place a similar circular bevilled washer or disc
of metal, being likewise loose or free to traverse on the rod or bar, having a nut or.
washer firmly fixed on the aforesaid horizontal rod or bar for it to work against
and for the purpose as hereinafter described.
At a suitable distance on the said horizontal rod or bar I provide a further nut
or washer likewise firmly secured on the aforesaid horizontal rod or bar having a
similar bevilled circular washer or disc of metal as that described to traverse
longitudinally on the rod or bar, behind which I likewise place a ring or washer of
India Rubber or other suitable medium and a further circular disc or washer of
metal to act against the same having a wedge shaped ring of metal suitably
tapered and formed and fixed or attached thereto to meet in a similar manner as
at the other end a cross or T head into which it works, as at both ends, in the
following manner viz:—
At the front of the rod or bar which I propose to form with a square head
having a suitable thread formed thereon, into which a nut is provided and works,
so that when the rod or bar referred to having the square or T head contained
thereon with the circular bevilled washers or discs and the intermediate ring or
rings of India Rubber or other material between each, as described, together with
the nuts are led or forced into the tube requiring to be stopped, that the same is
instantly effected by means of either two seperate spanners actuated or employed
in opposite directions, one upon the square formed head of the rod, bar or spindle
having a stop nut thereon and the other in the contrary direction upon the cross
head or T nut, or else substituting a short lever or tail to the aforesaid T nut
which would dispense with one of the spanners referred to; so that with an
approach to say a quarter turn or nearly so and at one combined action, that in the
case of the fixed T head at the one end and the loose T head or short lever at the
other end of the rod or bar, being actuated in one direction and in the latter case
completing the operation intended, by the stop nut and that of the ring of metal
suitably formed and tapered with and part of each of the two bevilled circular
washers as described, being actuated in the opposite direction and into which they

page_text: take or slide working simultaneously and thus causing an immediate expansion of
the elastic mediums interposed between each bevilled circular disc or metallic
washer as before described, which is done almost instantaneously and secured
effectually; added to, which the combined pressure of steam and water which
would be contained between the intermediate ring or rings of India Rubber or
other elastic médium that may be employed and the metallic bevilled discs would
further tend to keep them in a longitudinal direction tight and apart, and further
assist and secure the method I propose for mechanically stopping leaky Tubes as
herein before referred to and described, thus creating and securing a combined self
acting Tube Stopper for Marine and other Boilers.
In the accompanying Drawing, Figure 1, exhibits in elevation my Improved
Tube Stopper as applied within a Boiler Tube shewn in section, wherein A is the
T head or bolt formed upon one end of the horizontal rod or bar B, arranged at
one end to meet and work into the wedge shaped ring or disc C; behind which
there is provided the elastic ring of India Rubber or other suitable elastic
medium D, followed in a similar manner by the circular bevilled washer or disc E,
which is in common with the wedge shaped ring or disc C permitted to traverse
longitudinally on the rod or bar B. I provide a fixed nut F, fixed or secured onto
the horizontal rod or bar B, for the ring or disc E, to work against.
Figure 2, is a sectional view shewing the horizontal rod or bar B referred to
which is lengthened in practise to a suitable extent, upon which I provide a similar
bevilled circular washer or disc E¹ (as E in Figure 1) having a fixed nut F¹ behind
the circular washer or disc E¹, I place a ring or washer of India Rubber or other
elastic medium D¹ having à circular disc or washer of suitable metal C₁ to act
against the same, having a wedge shaped ring or nut A¹ of metal suitably tapered
to work on to the circular disc C³, and having fixed thereto a short lever G, being
kept in position by a fixed nut H.
So that upon the short lever G (as at Figure 2) being actuated in one direction
and a spanner employed in the opposite direction, which I may prefer in practice
to adopt, instead of two spanners previously described, and to so far avoid and
check the stopper being forced too far through the tube.
Having now particularly described the nature of my said Invention, and in
the manner the same is to be performed I declare that what I claim is
The novel method or means for mechanically stopping leaky Tubes in Boilers
and to further act in addition thereto as a self acting medium for the object
desired as herein set forth.
+.
L
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