IMPROVEMENTS IN STEAM HYDRAULIC AND OTHER JOINTS
Year: 1883

page_text: LETTERS PATENT to Edward Daniel Penning of Battersea Rise in the County
of Surrey for an Invention of "IMPROVEMENTS IN STEAM HYDRAULIC AND
OTHER JOINTS"
PROVISIONAL SPECIFICATION left by the said Edward Daniel Penning at
the Office of the Commissioners of Patents on the 20th February 1883.
EDWARD DANIEL PENNING of Battersea Rise in the County of Surrey
"IMPROVEMENTS IN STEAM HYDRAULIC AND OTHER JOINTS'
"
According to the present improvements I form the flanges of pipe and other
joints (to which my said improvements may be applied) in such a manner that
when such flanges are put together a triangular or somewhat similar shaped cavity
or recess is formed round the interior of the said joint the larger portion of such
cavity or recess being towards the interior of the circumference of the pipe or other
joint. To the said flanges is or are fitted one or more rings of india rubber or
other suitable material and of such form in section that when the flanges are
joined together the cavity or recess aforesaid shall be filled or nearly so and the
broad surface of such elastic filling shall be exposed to the interior pressure to
which the joint may be subjected the pressure thus having a tendency to wedge
the said ring or rings into the aforesaid cavity or recess on account of the form
thereof. By having joints made as above a middle length of pipe may easily be
attached or detached without disturbing the other lengths

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edward Daniel Penning in the Great Seal Patent Office on the
20th August 1883.
EDWARD DANIEL PENNING of Battersea Rise in the County of Surrey
"IMPROVEMENTS IN STEAM HYDRAULIC AND OTHER JOINTS.'
"
According to the present improvements I form the flanges of pipe and other
joints (to which my said improvements may be applied) in such a manner that
when such flanges are put together a triangular or somewhat similar shaped cavity
or recess is formed round the interior of the said joint the larger portion of such
cavity or recess being towards the interior of the circumference of the pipe or other
joint. To the said flanges is or are fitted one or more rings of india rubber or
other suitable material and of such form in section that when the flanges are joined
-together the cavity or recess aforesaid shall be filled or nearly so and the broad.
surface of such elastic filling shall be exposed to the interior pressure to which the
joint may be subjected the pressure thus having a tendency to wedge the said ring-
or rings into the aforesaid cavity or recess on account of the form thereof. By
having joints made as above a middle length of pipe may easily be attached or
detached without disturbing the other lengths
And in order to explain my said invention more fully I will now proceed to
describe the same with reference to the accompanying sheet of drawing
Fig 1 shews longitudinal section of joint applied to a pipe. In the cavity formed
by the flanges A are placed the rings B made of rubber soft metal or other suitable
material to form the packing of joint this is shewn in the drawing in two so that
a middle length of pipe may be attached or detached without disturbing the other
lengths but in some cases this might be made in one ring.
It will be seen that a small portion of the top of the rings at is taken off this
is done to allow of the rings being wedged tighter in the cavity by the pressure in
joint.
Having thus described my said Invention I wish it to be understood in conclusion
that what I claim is.
Firstly the packing composed of a ring or rings of a triangular wedge or
analogous shape in cross section combined with a similar shaped cavity in joint
formed by the flanges all substantially as and for the purposes set forth
Secondly-hydraulic steam and other joints constructed substantially as herein
*Bet forth.
In Witness whereof I the said Edward Daniel Penning have hereunto set my
hand and seal this eighteenth day of August in the year of our Lord one thousand
eight hundred and eighty three