Improvements in Jointing or Packing Tubes for Surface Condensers, Evaporators, Distilling Apparatus, and the like.
Year: 1898

page_text: Date of Application, 11th Nov., 1898-Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Jointing or Packing Tubes for Surface Condensers,
Evaporators, Distilling Apparatus, and the like.
I, GEORGE COCKBURN, of Sussex Street, Kinning Park, in the County of Ren-
frew, North Britain, 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, that is to say:-
My said invention has for its object to provide an improved simple and effec-
tive method of jointing or packing the ends of tubes for surface condensers,
evaporators, distilling apparatus and the like.
And in order that my said invention and the manner of performing the same
may be properly understood, I hereunto append a sheet of explanatory drawings
to be hereinafter referred to in describing my improvements.
Figures, 1, and 3, of the drawings are vertical sections on an enlarged scale of
portions of tube plates, and tube ends showing two modifications of my improved.
jointing arrangement. Figure, 2, is a front elevation corresponding to Figure, 1.
Figures, 4, and 6, are views similar to Figures, 1, and 3, but drawn to a smaller
scale and Figure, 5, is a front elevation corresponding to Figure, 4, showing a
number of tubes arranged in a plate provided with my improved jointing
arrangement. In these drawings the same reference letters are used to mark
the same or like parts wherever they are repeated.
In carrying out my invention according to the modification shown in Figures 1,
2, 4, and 5, I form in the tube plate, A, round the hole in which the tube, B,
is to be fixed, an annular enlargement or box, C, of suitable depth, and having
formed at its inner end, a part, D, which is internally cylindrical, and externally
conical. The metal packing gland or jointing piece, E, is made in the form of
a ring, having a flange or collar, F, at its outer end. The external diameter
of the jointing ring, E, is made to fit the circular box, C, while the internal
diameter is made large enough to clear the tube, B, but gradually increases
towards the inner end so as to form a tapered part, G, to fit the conical piece, D.
The jointing ring, E, is driven into the circular box, C, by a wooden mallet
or other suitable instrument, and as it is pressed over the conical part, 1), a
wedging action is produced, which causes the conical part.to nip closely round
the tube, and thereby form a tight joint or fastening. Notches, H, J, are
formed in the flange or collar, F, for the insertion of a tool for withdrawing the
packing gland or jointing ring, E,
In the second modification of my improvements shown in Figures, 3, and 6,
the conical part, D, is dispensed with, and the box, C, is made with a part, K,
tapering towards its inner end. The jointing gland, E, is made to fit the tube, B,
and as it is driven into the box, C. its inner end, L, acts against the tapered
part, K, of the box, producing a wedging action, and thereby causing the joint-
ing ring to nip closely round the tube and form a tight joint. If preferred the
jointing rings, E, may be screwed instead of being driven into the box, C.

page_text: Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
1. Improved jointing arrangement for the ends of tubes for surface condensers,
evaporators, distilling apparatus, and the like, consisting of a circular box
formed in the tube plate with a conical part at its inner end and a jointing
gland formed with an internally tapered part to fit the conical part of the box,
so as when driven or screwed into the box to have a wedge-like tightening action
substantially as herein before described with reference to Figures, 1, 2, 4, and 5,
of the accompanying drawings.
2. Improved jointing arrangement for the ends of tubes, for surface condensers,
evaporators, distilling apparatus and the like, consisting of a circular box
formed in the tube plate with a part tapering towards its inner end, and a
jointing gland, which, when driven or screwed into the box, has a wedge-like
tightening action substantially as hereinbefore described with reference to
Figures, 3, and 6, of the accompanying drawings.
Dated this Tenth day of November 1898.
EDMUND HUNT,
Applicant's Agent.