Improvements in Tube Stoppers.
Year: 1891

page_text: Date of Application, 16th Sept., 189!
Complete Specification Left, 16th June, 1892-Accepted, 16th July, 1812
PROVISIONAL SPECIFICATION.
Improvements in Tube Stoppers.
I WILLIAM SWINBURN GALES of 56 High Street Poplar in the County of
London Engineer do hereby declare the nature of this invention to be as follows:-
This invention relates to certain improvements in stoppers for stopping tubes of
marine or other boilers the object being to provide means whereby a defective tube-
can be expeditiously and effectively stopped or sealed.
In carrying out my invention I employ a tube on each end of which I place a
flange, through the centre of this tube I pass a rod on each end of which 1 place-
similar flanges to those on the tube. On one end of the rod is a nut or stop whilst
the other or outer end is formed square with a screw thread upon it. Onto this
screwed end of the rod I place a cap of a larger diameter than the diameter of the
tube to be stopped and a nut is then screwed onto the rod.
The main feature of my invention consists in placing between the two pair of
flanges washers of special construction which when compressed will expand within.
the tube to prevent any leakage.
The body of these washers are to be made of india rubber or the like and are
moulded or made in the form of a sheave with a groove or channel cut in its outer
periphery, and a hole in the middle for insertion of the central rod. Into this.
groove or channel I place a ring of asbestos tape, Tuck's packing or other material
capable of withstanding heat and pressure and on each side of said washers I place
a flat disc of asbestos which is held in position by a covering of gauze wire. It.
will be seen that according to this arrangement the main body of the washer is
protected on all sides from the heat, it having been found in practice that india-
rubber becomes wasted by the heat and does not make a reliable joint.
The body of the washers I propose to make in one piece or I may make them of
two flat washers with a boss on each over which is fitted the ring of asbestos tape,.
Tuck's packing, or the like.
Dated this 16th day of September 1891
W. S. GALES,
56, High Street, Poplar, E..
COMPLETE SPECIFICATION.
Improvements in Tube Stoppers.
I WILLIAM SWINBURN GALES of 5 Wingfield Road Leytonstone Road
London, E. 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 :-
This invention relates to certain improvements in stoppers for stopping tubes of
marine or other boilers the object being to provide means whereby a defective tube
can be expeditiously and effectively stopped or sealed.
In the following description reference will be made to the accompanying sheet of
drawings and to the figures and letters marked thereon.
Fig. 1 shows a side view of a stopper constructed according to this invention..
a is a tube on each end of which I place a flange b, through the centre of this tube
I pass a rod c on each end of which I place loosely fitting flanges & similar to those
on the tube a. On one end of rod c is a nut or stop d whilst the other or outer end
is formed square with a screw thread upon it. Onto this screwed end I place a
cape of a larger diameter than the diameter of the tube to be stopped, and a nut g.
is then screwed onto the rod.

page_text: The main feature of my invention consists in placing between the two pair of
flanges 6 washers of special construction which when compressed will expand within
and seal each end of the tube-to prevent any leakage. These washers are shown
in Figs. 2, 3, 4 and 5 of the drawings.
The body of the washer is.to.be made of india rubber or the like, and moulded
or made in the form of a sheave with a groove or channel cut in its outer periphery
into which I place a ring of asbestos tape, Tuck's packing or other material
capable of withstanding heat and pressure, and on. each side or outer face of said
washers h I place a flat disc of asbestos held in position by a covering of gauze
wire. It will be seen that by this arrangement the main body of the washer is
protected on all sides from the heat, it having been found in practice that india
rubber becomes wasted by the heat and does not make a reliable joint unless
protected in the manner herein described.
The body h of the washers I propose to make either in one piece as shown in
Fig. 5 or I may make them of two discs h with a boss h¹ over which is fitted the
ring of asbestos tape Tuck's packing or the like as shown in Figs. 2, 3, and 4.
In Fig. 6 is shown a modification in which the india rubber portion or body of
the washer is formed of one disc with a boss h¹ over which is passed the ring of
asbestos tape h, the flange in this case where it comes against the washer being
formed with a slight tapering boss so that when the washer is being compressed it
will assist in expanding the ring of asbestos within the tube.
It will be understood that to compress the washers it is only necessary to screw
up the nut 9 upon the rod e which is prevented from turning by being held on its
squared end by a spanner or other convenient means.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Firstly. In a tube stopper the washer
as described and shown.
.
has and for the purpose substantially
Secondly. The combination of the various parts forming my improved tube
stopper substantially as herein described and shown in the drawings.
Dated this 16th day of June 1809
W. S. GALES,
5, Wingfield Road, Leytonstone Road, London, E.
W. S. GALES,
5, Wingfield Road, Leytonstone Road, London, E.