Improvements in the Manufacture of Flanged Tubes.
Year: 1898

page_text: Improvements in the Manufacture of Flanged Tubes.
-
I, ALBERT EDWARD HILLS, of Plume Street, Aston, in the County of Warwick,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of tubes which re-
quire to have flanges upon their ends for the purpose of enabling secure joints to
be made between different lengths of tubing or sections for making a long-line
of piping for any ordinary purpose. My invention also enables me to produce a
tube capable of being readily joined without the necessity of having independent
flanges or collars employed in connection with the tube.
"In carrying my invention into effect I bend over or form into a flange in any
ordinary manner the end portion of the tube, the flange being formed-preferably
of the same thickness of metal as the tube: To enable the joint to be made be-
tween the meeting of the flanges of different tubes which are to be joined to-
gether' I-form a bed or ring within each flange and in the ring or bed I insert a
rubber or other suitable material jointing ring so that when the bolts or other
tightening devices are tightened the two flanges are drawn together and the
jointing material compressed to form a true air or pressure tight joint.
"I sometimes make the flanges which are to engage with each other with a pro-
jection on one flange and a recess in the other so that a rubber or other suitable
material ring may be placed in the recess while the projecting rib like ring on
the opposite flange may enter into the recess to compress the jointing material
ring. Around the ends of the tube and behind the flanges which are spun or
pressed over I place clip or other segmental flange blocks through which the bolts
pass for tightening the two parts together, and I sometimes form my tightening
flange blocks with recesses or grooves to suit the recesses or ribs formed upon or
in the flanges of the tube so as to give greater support to the tube flange at its
jointing area:
1
I may employ two or more rib like rings or recesses upon the flanges of my
tubes when such are required for any particular purpose.
I do not limit the application of my invention to any special method of form-
ing the flanges upon the tubes as such may be produced by ordinary punches and
dies or ordinary spinning or bending tools; or processes or machines at present in
use for like purposes.
st

page_text: Improvements in the Manufacture of Flanged Tubes.
I, ALBERT EDWARD HILLS, of Plume Street, Aston, in the County of Warwick,
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 improvements in the manufacture of tubes which re-
quire to have flanges upon their ends for the purpose of enabling secure joints to
be made between different lengths of tubing or sections for making a long, line
of piping for any ordinary purpose. My invention enables me to produce a tube
capable of being readily joined without the necessity of having independent
flanges or collars welded, rivetted, brazed, or otherwise united with the tube.
In carrying my invention into effect I bend over or form into a flange in any
ordinary manner the end portion of the tube, the flange being formed preferably
of the same thickness of metal as the tube. To enable the joint to be made be-
tween the meeting or adjacent surfaces of the flanges of different tubes which are
to be connected together I form a bed or groove within each flange and in such
groove I insert a rubber or other suitable material jointing ring so that when the
bolt or other fastening devices are tightened the two flanges are drawn together
and the jointing material compressed to form a true air or pressure tight joint.
.I sometime make the flanges which are to engage with each other with a pro-
jection on one flange and a recess in the other so that a rubber or other suitable
material ring may be placed in the recess whilst the projecting rib-like ring on
the opposite flange may enter into the recess to compress the jointing material
ring.
Around the ends of the tube and behind the flanges which are spun or
pressed over I place clip or other segmental flange blocks through which the bolts
pass for tightening the two parts together, and I sometimes form my strengthening
blocks with recesses or grooves to suit the ribs formed upon or in the flanges of
the tube, in order to give greater support to the tube flange at its jointing area.
I may employ two or more rib-like rings or recesses upon the flanges of my
tubes when such are required for any particular purpose.
I do not limit the application of my invention to any special method of forming
the flanges upon the tubes as such may be produced by ordinary punches and dies
or ordinary spinning or bending tools, or processes or machines at present in use
for like purposes.
Referring to the accompanying sheet of explanatory drawings:-
Figure 1 is an end elevation and Figure 2 a sectional plan on the line ab
Figure 1, representing the adjacent ends of a pair of thin steel pipes connected
together in one convenient manner in accordance with my invention.
Figure 3 is a sectional plan showing a modification in the form of the flanges.
The same reference letters in the different views indicate the similar parts.
In each of the flanges A and B which are made by the bending over of the
ends of the tubes A and B respectively, I form a semi-circular bed or groove for
the reception of the packing or jointing ring C. The two part blocks D and E
of cast steel or other material for strengthening the flanges are jointed together
as illustrated; the bolts F and G serve for the tightening together of the flanges
and also as the connecting or joint pins of the parts of each of the said segmental
blocks.
In the modification illustrated at Figure 3 the projection from the
⚫one flange
is made to fit into the groove in the adjacent flange, and with such an arrange-

page_text: ment the use of rubber or other packing material may be dispensed with if neces-
sary, and a joint formed by the metallic surfaces in close contact.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
1. The combination with a tube flanged by the bending over of its ends, of seg-
mental strengthening blocks, substantially as described.
2. The improved flange joints for steel and other tubes comprised by the
arrangement and combination of parts substantially as described & as illustrated.
Tth th
af 1800
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester.
Agents for Applicant.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and
25, Cross Street, Manchester.
Agents for Applicant.