Improved Flange Joint or Coupling for Tubes or Pipes.
Year: 1889

page_text: Date of Application, 24th Aug., 1889
Complete Specification Left, 17th Nov., 1889-Accepted, 14th Dec., 1889
Complete specification Left, 17th NOV., 1009 Accepted, 14th Dec, 2009
PROVISIONAL SPECIFICATION.
Improved Flange Joint or Coupling for Tubes or Pipes.
WALTER JOHN FORD 73 Etta Street Deptford Kent Superintending Engineer do
hereby declare the nature of this invention to be as follows:-
The object of my Invention is to prevent leaks or escapes at joints or couplings of
tubes or pipes when the said pipes or tubes are subjected to high internal or
external pressure by preventing the jointing substance or material from being blown
out.
For this purpose 1 construct flanges or couplings externally of ordinary type with
a series of concentric projecting rings or corrugations upon the internal faces of the
flanges or couplings of the tubes or pipes.
The concentric projecting rings or corrugations may be of any suitable form or
shape or number and may extend entirely or partly across the faces of the flanges or
couplings. They may be arranged so that the concentric rings or corrugations upon
the internal face of one flange or coupling may lay between those upon the internal
face of its fellow flange or coupling when laying upon each other or bolted together
forming a joint or coupling of pipes or tubes.
The concentric rings or corrugations in a pair of flanges or couplings may be so
arranged or constructed that they touch each other when bolted together or they may
be kept slightly apart.
Dated this 23rd day of Angust. 1889
WALTER JOHN FORD,
Applicant
COMPLETE SPECIFICATION.
Improved Flange Joint or Coupling for Tubes or Pipes.
WALTER JOHN FORD 73 Etta Street Deptford S.E. Kent, Superintending 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-
The object of my Invention is to prevent leaks or escapes at joints or couplings of
tubes or pipes by preventing the jointing substance or material being blown out or in
when the said tubes or pipes are subjected to high internal or external pressure.
For this purpose I construct flanges or couplings externally of ordinary type with a
series of spiral or concentric or irregular grooves and projecting rings or corru-
gations upon the internal or applied faces of the flanges or couplings of the tubes or
pipes.
The said Flanges or Couplings may be either rivetted or brazed or screwed to the
pipes or tubes, or they may be fastened or secured to the pipes or tubes in any other
suitable manner.
The concentric or spiral or irregular grooves & projecting rings or corrugations
may be of any suitable form or shape. They may be angular or they may be curved,
or they may be angular & curved combined, and there may be any number, and be
made any suitable size, & extend entirely or partly across the faces of the flanges
or couplings.
The concentric or spiral or irregular grooves & projecting rings or corrugations
may be so arranged that those upon the internal or applied face of one flange or
coupling may lie between those upon the internal or applied face of its fellow flange
or coupling when lying upon each other as when bolted together forming a joint or
coupling of tubes or pipes.

page_text: The concentric or spiral or irregular grooves & projecting rings or corrugations
upon a pair of flanges or couplings may be so arranged & constructed that they touch
each other upon all parts of the corrugations when lying upon each other without
the jointing substance or material between, or they may touch only at various parts
as arranged, or they may be kept slightly apart throughout.
Referring to the annexed sheets of illustrated drawings
Figs. 1A 1B shows the full size half section of a pair of flanges or couplings
suitable for pipes or tubes of six or more inches in diameter. The concentric pro-
jecting rings and grooves or corrugations being of the curved type according to
my invention & extending partly across the internal or applied face of each
flange or coupling. C. D. showing the internal or applied face of each flange or
coupling.
Fig. 2. shows a segment of the flange or coupling Fig. 1B looking at the
internal or applied face & section of same through the line C. D. (The fellow flange
or coupling Fig 1 being removed.)
Fig. 3. shows the Figs. 1 & 1B placed together as when bolted up forming a
joint or coupling of two tubes or pipes, (but having no jointing substance or material
placed between them) & showing the corrugations kept slightly apart. This space
between the corrugations (marked E.) is provided for the reception of the jointing
substance or material, which, it will be seen would be effectually locked in or
prevented from blowing out when subjected to high internal or external pressure in
the direction of the arrows, by the internal or applied faces of the flanges or couplings
being in close contact. P. shows the half section of the pipes or tubes. H. shows a
bolt hole through the flanges or couplings.
Fig. 4. shows a full size half section of a pair of flanges or couplings, externally the same
(& placed together in the same relative position to each other) as Fig. 3. also having
projecting rings & grooves or corrugations of the curved type but extending entirely
across the internal or applied faces of the flanges or couplings & having no jointing
substance or material placed between them. It will be seen by the construction of
the grooves & projecting rings or corrugations, that those upon the internal or
applied face of the flange or coupling A. are in entire contact with those upon its
fellow flange or coupling B. & vice versa.
Fig. 5 shows the pair of flanges or couplings illustrated by Fig. 4. bolted together
with the jointing substance or material placed between them (as when in use) forming
a joint or coupling of two tubes or pipes. It will be seen that the jointing substance
or material indicated by the thick black lines is effectually locked in or prevented
from blowing out or in when the said tubes or pipes are subjected to high internal
or external pressure in the direction of the arrows, by the close contact of the con-
centric grooves & projecting rings or corrugations at various parts or places.
Fig. 6 shows the full size half section of a pair of flanges or couplings externally
the same as Fig. 5. but having corrugations of the angular type according to my
invention upon the internal or applied faces of the flanges or couplings. The flanges
or couplings being bolted together with the jointing substance between them (as when
in use) & indicated by the thick black lines marked F.
Fig. 7. shows the full size half section of a pair of flanges or couplings, externally
the same & placed together as Fig. 3 but having the concentric grooves & pro-
jecting rings or corrugations of the curved & angular types combined according
to my invention & extending entirely across the internal or applied faces of the
flanges or couplings & showing the corrugations kept slightly apart, the spaces
between them (marked E.) being provided for the reception of the jointing substance
or material, which, it may be seen would be effectually locked in or prevented from
blowing out by the internal or applied faces of the flanges or couplings being in close
contact with each other.
Fig. 8. shows the concentric grooves and projecting rings or corrugations to be of
the same form as Fig. 3. but extending entirely across the internal or applied faces of
the flanges or couplings.
Fig. 9. shows the concentric grooves & projecting rings or corrugations of the

page_text: same form & construction as Fig. 8. but having the space or spaces provided for the
jointing substance or material differently arranged, & marked E.
Figs. 10. 11 & 12. shows various forms of concentric grooves & projecting rings
or corrugations of the angular type according to my invention, which may be so con-
structed & arranged as to extend entirely or partly across the internal or applied
faces of the flanges or couplings.
Figs. 13. 14 & 1. shows various forms & arrangements of concentric grooves &
projecting rings or corrugations of the curved & angular types combined according to
my invention which may be so constructed & arranged as to extend entirely or
partly across the internal or applied faces of the flanges or couplings.
Fig. 16. shows the full size plan of a segment of a flange or coupling. The grooves
& projecting rings or corrugations being of the spiral form according to my inven-
tion, but showing in section the same as Fig. 1B through the line C. D.
Figs. 17 & 18. shows full size plans of segments of flanges or couplings. The
grooves & projections or corrugations being of the irregular form according to my inven-
tion & showing in section the same as Fig. 1 B. through the line C. D.
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. The application to the flanges or couplings used in jointing or connecting pipes or
tubes, of grooves & projections or corrugations on their internal or applied faces,
for the purpose of preventing the packing or jointing substance between them from
being blown out or in by internal or external pressure.
2. The Improved Flange joint or Coupling substantially as shown and described.
Dated this Ath day of November 1889
WALTER JOHN FORD.