IMPROVE- MENTS IN CAST METAL OR OTHER PIPES OR TUBES FOR CONVEYING GASES, FLUIDS, OR VAPOURS, AND IN THE MODE OF CONNECTING SUCH PIPES OR TUBES
Year: 1862

page_text: LETTERS PATENT to Joseph Hadley Riddell, of 155, Cheapside, in the
City of London, Hot Water Engineer, for the Invention of "IMPROVE-
MENTS IN CAST METAL OR OTHER PIPES OR TUBES FOR CONVEYING GASES,
FLUIDS, OR VAPOURS, AND IN THE MODE OF CONNECTING SUCH PIPES OR
TUBES."
Sealed the 12th June 1863, and dated the 29th December 1862.
PROVISIONAL SPECIFICATION left by the said Joseph Hadley Riddell
at the Office of the Commissioners of Patents, with his Petition, on
the 29th December 1862.
I, JOSEPH HADLEY RIDDELL, of 155, Cheapside, in the City of London,
Hot Water Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN CAST METAL OR OTHER PIPES OR TUBES FOR CONVEYING
GASES, FLUIDS, OR VAPOURS, AND IN THE MODE OF CONNECTING SUCH PIPES OR
TUBES," to be as follows, that is to say:-
My Invention consists in forming a flange with a circular groove or recess in its
face, the sectional form of which groove or recess may be either the segment of a
circle or any other convenient shape, and, by preference, I form this groove or
recess on the face of the flange in the space between the internal orifice or bore
of the pipe or tube and the holes cast or made in the flange through which
the bolts or screws pass which are used in connecting the different lengths of
pipe together. These grooves or recesses being formed upon the face of each

page_text: I
flange must be arranged to meet or correspond exactly with each other when
brought together, forming a grooved or recessed channel round the face of each
pair of flanges, and in connecting these improved pipes together I place a ring
of india-rubber, gaskit, or other elastic or compressible material in this groove
and draw the flanges together by bolts or screws, thereby compressing the
elastic ring or packing, and forming a joint impervious to gas, water, or steam,
may remark that india-rubber prepared or "vulcanized" has already been
commonly used for making joints of flange pipes, but it has been formed of flat
rings of the material pressed between the flat faces of the flanges, whereas my
improvement consists in forming cylindrical or other rings of the packing
material which fit and are compressed into a groove or recess formed in the
face of each flange, thereby removing the objection which has frequently been
raised to this mode of making joints that the india-rubber is gradually forced
out between the plain flanges of the pipes by the internal pressure of the
steam or water in the pipes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Hadley Riddell in the Great Seal Patent Office on
the 29th June 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, J, JOSEPH
HADLEY RIDDELL, of 155, Cheapside, in the City of London, Hot Water
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of December, in the year of our
Lord One thousand eight hundred and sixty-two, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Joseph Hadley Riddell, Her special licence that I, the said Joseph
Hadley Riddell, my executors, administrators, and assigns, or such others as I,
the said Joseph Hadley Riddell, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN CAST METAL OR OTHER PIPES OR TUBES FOR
CONVEYING GASSES, FLUIDS, OR VAPOURS, AND IN THE MODE OF CONNECTING SUCH
PIPES OR TUBES," upon the condition (amongst others) that I, the said
Joseph Hadley Riddell, my executors or administrators, by an instrument in

page_text: writing under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
.
NOW KNOW YE, that I, the said Joseph Hadley Riddell, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the fol-
lowing statement :-.
My Invention is for improvements in what are commonly called flange pipes,
and consists in forming a groove or recess in the face of the flange, the
sectional form of which groove may be either the segment of a circle, or any
other convenient shape, and, by preference, I form this groove or recess in the
face of the flange in the space between the internal orifice or bore of the pipe
and the holes cast or made in the flange through which the bolts or screws,
pass which are used in connecting the different lengths or pieces of pipe
together. These grooves or recesses being formed upon the face of each
flango must be arranged to meet or correspond with each other when brought
together forming a grooved channel round the face of each flange, and in con-
necting these improved pipes together I place a ring of india-rubber, hemp,
or other suitable and elastic material in this groove, and draw the flanges
together by bolts and nuts, or screws, thereby compressing the elastic ring or
packing and forming a joint impervious to gas, water, or steam, I may mention
that india-rubber prepared or vulcanized has already been commonly used for
making joints of flange pipes, but it has been formed of flat rings of the
material pressed between the flat faces of the flanges, whereas my improve-
ment consists in forming cylindrical or other rings of the packing material
which fit and are compressed into grooves or recesses formed in the face of
each flange, thereby removing the objection which has frequently been raised to
this mode of making joints that the india-rubber is gradually forced out between
the plain flanges of the pipes by the pressure of the steam or water in the
pipes.
In the accompanying Drawings I have shewn how my said improvements
are applied.
Figure 1 is a section of my improved joint; Figure 2 a view of the face of
one of the improved flanges with the groove on its face, and Figure 3 a view
of one of the packing rings composed of india-rubber, prepared or otherwise,
hemp, or any other suitable material.
A is the flange; B, B, the bolts for screwing the flanges together and com-

page_text: pressing the packing material; C, the packing ring; and D, the groove or recess
on the face of the flange.
Having described the nature of my Invention, and the manner of performing
the same, I declare that what I claim as my Invention to be protected by the
herein-before in part recited Letters Patent is, the forming and arrangement
of parts herein-before described in combination with pipes for conveying gasses,
fluids, or vapors.
In witness whereof, I, the said Joseph Hadley Riddell, have hereunto
set my hand and seal, this Twenty-ninth day of June, in the year
of our Lord One thousand eight hundred and sixty-three.
JOSEPH HADLEY RIDDELL. (L.S.)