An Improved Packing suitable for Flange and other Joints.
Year: 1891

page_text: Date of Application, 11th June, 1891
Complete Specification Left, 10th Mar., 1892-Accepted, 16th Apr., 1892
PROVISIONAL SPECIFICATION.
An Improved Packing suitable for Flange and other Joints.
We, SHOLTO DOUGLAS, of 23 Adelphi Place, Salford, in the County of
Lancaster, Engineer, and HARRY WELFITT NICHOLLS, of 1 Cooper Street,
Manchester, in the said County, Solicitor, do hereby declare the nature of this
invention to be as follows:-
Our invention relates to an improved packing for flange and other joints and in
carrying our invention into effect we turn or machine the adjoining faces of the
flanges to be united in any convenient manner and we take a double washer com-
posed say of two single washers of thin metal preferably brass or copper brazed or
otherwise secured together and to a ring of wire or other suitable distance piece.
When used for water pipes and the like the double washer is preferably of con-
siderably smaller diameter than that of the outside of the flanges but its inner
diameter should correspond or nearly so with that of the bore of the water pipe.
The space inside the double washer between the wire at its largest diameter and
the open edges at its smallest diameter we fill with strong blotting paper or it may
be other suitable absorbent material.
The double washer is placed between the two flanges to be united and the outer
space not covered by the washer is preferably filled with any suitable composition
to resist the action of water or steam as the case may be.
When the flanges are
brought together and bolted up the wire ring will be firmly bedded between the
flanges and will relieve the blotting paper or other filling of the chief pressure so
that a certain amount of fluid from the pipe will enter the space between the sides
of the double washer and force them apart into close contact with the flanges
thereby making a good and reliable joint.
Dand this 10th day of Luno 1801
H. B. BARLOW,
Agent for Applicants.
COMPLETE SPECIFICATION.
An Improved Packing suitable for Flange and other Joints.
We, SHOLTO DOUGLAS, of 23 Adelphi Place, Salford, in the County of
Lancaster, Engineer, and HARRY WELFITT NICHOLLS, of 1 Cooper Strect,
Manchester, in the said County, Solicitor, 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:-
Our invention relates to an improved packing for flange and other joints and in
carrying our invention into effect we turn or machine the adjoining faces of the
flange to be united in any convenient manner and we take a double washer com-
posed say of two single washers of thin metal preferably brass or copper brazed
or otherwise secured together and to a ring of wire or other suitable distance
piece. When used for water pipes and the like the double washer is preferably
of considerably smaller diameter than that of the outside of the flanges but its
inner diameter should correspond or nearly so with that of the bore of the water
pipe.
And in order that our invention may be fully understood and readily carried
into effect we will describe the accompanying sheet of drawings reference being had
to the figures and letters marked thereon.
Figure 1 is a sectional elevation of a flange joint with our improved packing.

page_text: Fig. 2 is a plan of the lower flange showing the improved packing in position
thereon and
Figs. 3 and 4 are views of the packing detached.
In the drawings, a is the upper and the lower flange, and c the bolts by which
said flanges are secured together.
The improved packing as shown consists of the two single thin brass or other
suitable metal washers d each brazed to a copper or other wire e.
The space inside the double washer d d between the wire e at its largest diameter
and the open edges at its smallest diameter we preferably fill with any suitable
packing material.
The double washer d d is placed between the two flanges ab to be united and
the outer space not covered by the washer is preferably filled with any suitable
composition or packing to resist the action of water or steam as the case may be.
When the flanges a b are brought together and bolted up by the bolts c the wire
ringe will be firmly bedded between the flanges and will relieve the packing material
of the chief pressure so that a certain amount of fluid from the pipe will enter the
space between the sides of the double washer d d and force them apart into close
contact with the flanges a b thereby making a good and reliable joint.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
The improved packing consisting of a double washer combined with a wire ring
or other suitable distance piece and arranged and operating substantially in the
manner and for the purposes herein set forth.
Dated this 9th day of March 1899
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicants.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicants.