A New or Improved Tube Stopper for Boiler and such like Tubes.
Year: 1894

page_text: Date of Application, 4th Dec., 1894
Complete Specification Left. 13th Mar., 1895-Accepted. 13th Apr., 1895
PROVISIONAL SPECIFICATION.
A New or Improved Tube Stopper for Boiler and such like Tubes.
JAMES ROBERT REEDMAN and JOSEPH SCOTT, both of Bradley Street
Beckton Road, Canning Town E. Engineers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a tube stopper for closing or stopping the tubes of
boilers and such like & the same is carried out as follows:-
These
I provide two hollow conical caps of suitable metal having apertures.
caps are placed upon a rod having screw threaded ends with their smaller ends
towards the centre of same, said smaller ends bearing upon an enlarged portion of
the rod or upon the ends of a tube encircling said rod. In the larger end of each
cap aforesaid, a conical plug having an aperture through which the screw threaded
ends of the rod aforesaid pass, is inserted and the conical plugs are forced into the
hollow caps by means of nuts screwing upon the screw threaded ends of the rod,
thus expanding the hollow caps. It will be seen that by passing the device into a
boiler tube which can be done from either end of said tube and then screwing up
the nuts that the hollow caps will be expanded against the inside or ends of said
tube and thus make a tight joint and so stop the leakage caused by the bursting or
breaking of a tube. The length of the rod and relative positions of the parts
thereon being varied as required. In a modified arrangement I dispense with the
hollow caps and employ two conical plugs one at each end of the tube to be
stopped and having a rod with screwed ends passing through same, the plugs
being tightened against the ends of the tube by nuts screwing upon the ends of
said rod.
Dated this 3rd day of December 1894.
E. EATON,
Agent for Applicants.
A New or Improved Tube Stopper for Boiler and such like Tubes.
We, JAMES ROBERT REEDMAN and JOSEPH SCOTT both of Bradley Street
Beckton Road Canning Town London E. Engineers, 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 a tube stopper for closing or stopping the tubes of
boilers and such like and the same is carried out as follows. I provide two hollow
conical caps of suitable metal having apertures. These caps are placed upon a
rod having screw threaded ends, with their smaller ends towards the centre of
same said smaller ends bearing upon an enlarged portion of the rod or upon the
ends of a tube encircling said rod. In the larger end of each cap aforesaid, a
conical plug-having an aperture through which the screw threaded ends of the
rod aforesaid, pass-is inserted, and the conical plugs are forced into the hollow
caps by means of nuts screwing upon the screw threaded ends of the rods, thus
expanding the hollow caps. It will be seen that by passing the device into a

page_text: boiler tube, which can be done from either end of said tube, and then screwing up
the nuts that the hollow caps will be expanded against the inside of said tube
and thus make a tight joint and so stop the leakage caused by the bursting or
breaking of a tube. The length of the rod and relative positions of the parts
thereon being varied as required. In a modified arrangement I dispense with the
hollow caps and employ two conical plugs one at each end of the tube to be stopped
and having a rod with screwed ends passing through same, the plugs being
tightened against the ends of the tube by nuts screwing upon the ends of same.
Referring to the annexed drawings
Figure 1. sectional side elevation of my invention.
Figure 2. sectional side elevation of a modified form of my invention.
a is the boiler tube. b, b, are two hollow conical caps which are made of a
suitable metal. In the ends of the caps b the conical plugs e engage. d is a rod
having the screwed ends e said rod passes through central apertures in the caps b &
plugs c. is a tube which encircles the rod d, and upon the ends of which the
hollow caps, b bear. It will be seen that by screwing up the nuts g the caps b, b,
are expanded and thus make a tight joint.
In Figure 2 the caps, b, are dispensed with and the plugs h, h, bear directly
upon the ends of the tube a. In this case the tube y'is also dispensed with, the
rod d and nuts g being employed as before.
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
1. In tube stoppers for tubes for boilers and the like, the combined construction
and arrangement of the various parts substantially as described and illustrated.
2. A tube stopper consisting of two hollow conical caps, two conical plugs
engaging in said conical caps; a rod having screwed euds and passing through
apertures in said caps and plugs, a tube encircling said rod and upon the ends of
which said caps bear, nuts engaging upon the screwed ends of said rod all in
combination and substantially as described.
3. A tube stopper consisting of two conical plugs, a rod having screwed ends
and passing through apertures in the plugs, nuts engaging on the screwed ends of
said rod all in combination and substantially as described.
Dated this 13th day of March 1895.
E. EATON,
Agent for Applicants.