An Improved Fluid Tight Joint.
Year: 1891

page_text: Date of Application, 13th June, 1891
Complete Specification Left, 12th Mar., 1892-Accepted, 14th May, 1892
PROVISIONAL DEMUIFICATION.
An Improved Fluid Tight Joint.
We, ALBERT GAY, of Kensington Central Electric Lighting Station, Richmond
Road, S.W. in the County of London, Electrical Engineer and ROBERT
HAMMOND, of 117 Bishopsgate Street Within, in the County of London, Electrical
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to an improved fluid tight joint suitable for pipes,
cylinders, and in other cases where it is required to make joints in suchwise as to
prevent escape of steam or other fluid.
For this purpose the surfaces of the parts intended to be juxtaposed, whether
they be two flanges, or a flange and a cover, or other analogous parts, are so formed
that when they are placed together there shall be between their juxtaposed surfaces
at the inner portions thereof, that is, the part next the interior of the pipe or
cylinder or vessel in which the joint is formed, a space or recess resembling a com-
paratively deep narrow groove of a form gradually tapering or decreasing in width
from its innermost or widest part (next the interior of the pipe or other vessel)
towards its outer part or bed, which is the point at which the surfaces of the flanges
or other parts actually meet.
Within this peculiarly formed deep-groove-like space or recess there is introduced
any suitable packing in such a manner than any fluid under pressure within the
pipe or vessel and tending to escape at the joint formed as described will act to
force the packing further and further into the above described peculiarly formed
space or recess and towards its narrowest part or bed, thereby compressing the
packing between the inclined walls of the said space and producing and maintaining
a practically tight joint in a simple automatic and inexpensive manner.
Dated this 12th dor of June 1801
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants
COMPLETE SPECIFICATION.
An Improved Fluid Tight Joint.
We, ALBERT GAY, of Kensington Central Electric Lighting Station, Richmond
Road, S. W. in the County of London, Electrical Engineer and ROBERT HAMMOND
of 117 Bishopsgate Street Within, in the County of London, Electrical 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 has reference to an improved fluid tight joint suitable for pipes,
cylinders, and in other cases where it is required to make joints in suchwise as to
prevent escape of steam or other fluid.
For this purpose the surfaces of the parts intended to be juxtaposed, whether
they be two flanges, or a flange and a cover, or other analogous parts, are so formed
that when they are placed together there shall be between their juxtaposed surfaces
at the inner portions thereof, that is, the part next the interior of the pipe or
CD

page_text: cylinder or vessel in which the joint is formed, a space or recess resembling a com-
paratively deep narrow groove of a form gradually tapering or decreasing in width
from its innermost or widest part (next the interior of the pipe or other vessel)
towards its outer part or bed, which is the point at which the surfaces of the flanges
or other parts actually meet.
Within this peculiarly formed deep-groove-like space or recess there is introduced
any suitable packing in such a manner that any fluid under pressure within the
pipe or vessel and tending to escape at the joint formed as described will act to
force the packing further and further into the above described peculiarly formed
space or recess and towards its narrowest part or bed, thereby compressing the
packing between the inclined walls of the said space and producing and maintaining
a practically tight joint in a simple automatic and inexpensive manner.
In the accompanying drawings,
Fig. 1 is a longitudinal section of a steam pipe joint according to this invention.
The ends of the lengths of pipe 1, 1° to be connected, are provided with flanges 2, 2ª
secured to the pipes as usual; that surface of each flange that is next the end of
its length of pipe is made of an inclined form at 3 the shape of the flange in cross
section being such that, when two lengths of pipe are placed end to end, the
juxtaposed flanges form a space or recess resembling a comparatively deep narrow
groove of a form gradually tapering or decreasing in width from its innermost part
towards its outer part or bed. Within this space is introduced a ring 4 of packing
material of any suitable kind, such as asbestos, (woven or otherwise), soft metal etc.,
which is prevented from collapsing and falling into the interior of the pipe by
means of "spigots" or extensions formed by the pipe ends 1b. The lengths of
pipe are drawn together by means of bolts and nuts 6 as usual.
Steam tending to escape at the joint will act to force the packing ring 4 towards
the narrowest portion or bed of the deep-groove-like space thereby compressing
the packing between the inclined walls of the space and producing and maintaining
a tight joint.
Fig. 2 shews in section part of a cylinder with cover, forming with packing a
joint similar to that shewn in Fig. 1.
The flanged end of the cylinder is in this case grooved in suchwise as to provide
not only an inclined surface constituting one side of the packing space but also a
metal rim or spigot between the inclined portion and the bore of the cylinder. The
inner face of the cover 2 is similarly grooved so that when the cover is in position
on the cylinder end there is formed a deep groove-like space for the reception of
the packing material as in the case of the pipe joint.
Fig. 3 shows in longitudinal section a pipe joint adapted for use when the main
lengths of steam pipe are fixed or cannot be conveniently moved apart sufficiently
to allow of the introduction of the packing material. In such cases, a short inter-
mediate length of pipe with a flange or ring 7 bevelled on both sides at the inner
portion thereof is arranged between the flanges 2 and 2ª of two lengths of pipe 1
and 1*, so as to form two deep-groove-like spaces; in each of these spaces a packing
ring 4 is placed, thus forming a double joint. Bolts 6, passing through the flanges 2, 2
and through the movable flange or ring 7, retain the latter and its short length of
pipe in place. In other respects the construction shewn in Fig. 3 is substantially
the same as that shown in Fig. 1.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The herein described improved fluid tight joint wherein the surfaces to be juxta-
posed, such as the pipe ends or flanges or the cylinder end or flange and cover, are
so formed that when they are juxtaposed there is formed between them a space or
recess resembling a comparatively deep narrow groove of a form gradually tapering
or decreasing in width from its innermost or widest part towards its outer part or

page_text: bed, in which suitable packing material is placed substantially as described with
reference to the examples illustrated for the purpose specified.
Dated this 14th day of March 1892.
ALDERI
W. Lloyd Wise,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.