Improvements in the Construction of Joint Rings.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Construction of Joint Rings.
I, JAMES MILNE-COOPER, of 27, Kirkgate, Bradford, in the County of York,
Asbestos Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to joint rings suitable for the coupling together of pipes, lids
of vessels and the like working under pressure, and has for its object the construction
of the rings in such a manner that, the joint is more durable and not so readily
destroyed by heat or burst by pressure as is the case with joint rings made in the
manner as hitherto; also to so arrange the rings that they are more readily adjusted
to their proper position between the flanges or the like when making a joint.
In carrying out my invention I form a metallic ring of suitable ductile material
such as copper, formed with one or more corrugations on the upper and lower surfaces
of the ring, and also a corrugation or recess on the inner and outer circumference of
the ring.
Into these corrugations cords of asbestos, india rubber, graphite, or other suitable
flexible material may be inserted, or the ductile metallic ring may be coated or
covered by asbestos or the like, and to the circumference of the ring is attached an
arm of such length as to extend beyond the pipe or joint flange, by which the ring
is more under control and readily adjusted between the flanges or the like whon
making the joint.
By constructing a ductile metallic ring and combining there with asbestos or the
like in the manner described, when the joint is tightened up by the joint bolts, it is
readily compressed, the corrugations supporting the asbestos or the like inserted or
compressed into the corrugations, the latter preventing the pressure blowing the
asbestos or the like out of the joint and creating a leakage as readily as when the
joint is made of flexible material and not supported by a ductile metallío ring.
1000
I, JAMES MILNK-COOPER, of 27 Kirkgate, Bradford, in the County of York,
Asbestos Manufacturer, 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 joint rings suitable for coupling together pipes, lids of
vessels and the like working under pressure, and has for its object, the construction of
the rings in such a manner that, the joint is more durable and not so readily

page_text: destroyed by heat or burst by pressure as is the case with joint rings made in the
manner as hitherto ; also to so arrange the rings that, they may be more readily
adjustod in the position required between the flanges or the like when making a
joint.
In order that my invention may be readily understood, I will describe the same
in detail by making reference to the accompanying sheet of drawings, in which
Fig. 1 represents a plan of a metallic circular jointing ring made according to iny
invention but is shown without any covering or filling in of flexible material.
Fig. 2 is a plan of a compound joint ring covered with asbestos or like flexible
material, and suitable for oblong joint flanges.
Fig. 3 is a section through Fig. 2.
Fig. 4 is a section through a circular joint ring such as shown by Fig. 1 in which
the top and bottom corrugations are filled with asbestos or the like.
Fig. 5 is a section of a compound ring formed of two copper or other suitable
ductile metal rings, between which is placed a ring of flexible material such as india
rubbor, asbestos or other suitable material.
Fig. 6 is a section of another form of double or compound ring, and
Fig. 7 is a section of a ring having the corrugations filled in and also covered on
both sides with sheet asbestos or the like.
In all the figures similar parts are indicated by similar letters.
In carrying out my invention, I form one or more metallic rings A. of suitable
ductile material such as copper, and in each ring A. are formed corrugations or recesses
on the four sides.
Into the corrugations B. on the upper and lower surfaces of the ring or rings,
cords of asbestos, india rubber, graphite, or other suitable material 0. may be
inserted, or the ductile metallic ring may also be coated or covered with sheet
asbestos or the like C' as shown by Figs. 2. 3 and 7.
To the circumference of the metallic ring A. is attached an arm E. of light wire or
material of such length, as to extend beyond the outside of the pipe or joint flange,
by this means tho joint ring is more under control and readily adjusted between the
flanges or the like when making a joint.
The ductile metallic rings A. are prepared with corrugations F. on the inner and
outer circuuiforences, by which a light inetallic support is obtained for the asbestos or
other material O. inserted in, or covering the top and bottom corrugations B. or when
an asbestos or other suitable flexible ring is placed between the circumferential
corrugations of a compound ring as at G. shown by Fig. 5.
By constructing the ductile metallic rings and combining therewith asbestos or
the like by insertion within or between the corrugations, or by covering the
corrugated metallic rings A. with sheet asbestos C or other suitable material in the
manner as shown and described, when the ring is inserted between joint flanges and
tightened up by the joint bolts, it is readily compressed, the metallic ring assisting
the asbestos or the like to form the joint, and at the same time acting as a
support, prevents the internal pressure within the pipe or other vessel, blowing
the asbestos or like material out of the joint and creating a leakage, as readily as
when the joint is made of flexible material and not supported by one or more
ductile corrugated rings.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same is to be performed, I declare that what I
claim is,
1. A ductile metallic ring A. having one or more corrugations B. on the upper
and lower flat surfaces and corrugated or recessed on the inner and outer circum-
ferences in combination with asbestos or other suitable flexible material applied in
the manner and for the purpose as hereinbefore set forth.
2. A ductile metallic ring corrugated and filled in or coated with asbestos or
like material in the maunor substantially as described and shown and combined
with an arm E. as and for the purpose as hereinbefore set forth.

page_text: 3. Two or more corrugated rings A. filled in or coated with asbestos or the like
combined with a flexible ring supported by the circumferential corrugations F. all
arranged and constructed substantially in the manner as described and shown.
Dated this 4th day of February 1897.
JOHN WAUGH,
Agent.