Improvements in Pipe Joints.
Year: 1894

page_text: Date of Application, 18th July, 1894
Complete Specification Left, 16th Apr., 1895-Accepted, 24th May, 1895
PROVISIONAL I
Improvements in Pipe Joints.
I THOMAS ROBINSON 127 Ramsden Road, Wardle, Plumber in the County of
Lancaster do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to improved means for making a perfect air and liquid
tight joint between a metal pipe and the outlet pipe of an earthenware water closet
basin or trap. Applicable also for joining two metal pipes together and to enable
such joints to be readily opened and closed again when required for repairs or
otherwise.
The invention is an improvement upon the invention for which I made application
for Letters Patent (with a Provisional and Complete Specification) bearing date
June 3rd 1892 and numbered 10563. The objects of the present improvements
being in some cases to dispense with the necessity for cementing the inside conical
ring to the earthenware pipe also to dispense with the loose half rings.
For the purposes of my present improvements I form the inside conical ring
without the internal lip that abuts against the earthenware pipe, and I place a more
substantial india rubber ring than hitherto used between the inside conical ring
and the outside metal ring or pipe and by bolting them together it will be evident
that the inside ring will displace the india rubber ring so as to cause it to expand
against the outside metal ring and pipe and into the groove or socket formed on the
inside conical ring, and against the earthenware pipe, thus forming a substantial
air and liquid tight joint.
When it is required to connect two metal pipes together I extend the top portion
of the inside conical ring and 1 form a screwed thread therein, and I form the
outside metal ring as described at a. a. Fig. 3 on the Specification before referred
to and by placing the india rubber ring between the two metal rings and bolting
them together it will form a substantial, air and liquid tight joint.
Dated the Seventeenth day of July 1894.
THOMAS ROBINSON,
127, Ramsden Road, Wardle, in the County of Lancaster, Plumber.
impre
I THOMAS ROBINSON of 127 Ramsden Road Wardle in the County of Lancaster
Plumber 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 improved means for making a perfect air and liquid
tight joint between a metal pipe and the outlet pipe of an earthenware water closet
basin or trap, applicable also for joining two metal pipes together, and to enable
or otherwise.
such joints to be readily opened and closed again for repairs
The invention is an improvement upon the invention for which I made application
for Letters Patent (with a Provisional, and Complete, Specification) bearing date

page_text: June 3rd 1892, and numbered 10563. The objects of the present improvements,
being in some cases to dispense with the necessity for cementing the inside conical
ring to the earthenware pipe also to dispense with the loose half rings.
My invention will be readily understood on reference to the accompanying
sheet of drawings, on which
Fig. 1. is a sectional elevation, as applied to the connection of metal pipes, to
earthenware pipes, according to my invention.
Fig. 4. shews the the application of my invention to the connection of metal
pipes.
In the first place instead of forming the inside conical ring with an internal lip
to abut against the earthenware pipe, as described in the Specification before
referred to I form it as shown at c¹ Fig. 1. with lugs or ears and I place it over the
earthenware pipe a. and I place the outside conical ring c. and the metal pipe b.
(as fully described in the Specification before-referred to) also over the earthenware
pipe a. and I place a solid india rubber ring of a round or triangular section as
shown at Figs. 2 and 3, between the metal rings (c. and c¹ and pipe b.) and by
bolting them together the inside metal ring displaces the india rubber ring so as to
cause it to expand against the earthenware pipe a. and against the lead pipe b. and
into the groove of the inside metal ring e² (as shown at thus forming a perfect air
and liquid tight joint.
When it is required to connect two metal pipes together 63 Fig. 4. I extend the
top portion of the inside conical ring (Fig. 1.) and I form it as shown at d¹ Fig. 4
and with a screwed thread therein, and I form the outside metal ring as described
at a. a. Fig. 3. in the Specification before referred to and by placing the india
rubber ring, Fig. 5, between the two metal rings ( and a) and by bolting them
together the india rubber ring will be compressed all around the groove d. of the
inside metal ring d¹ and over the lip or rim of the outside metal ring thus
formning a substantial air and liquid tight joint.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1st. The improved means for connecting metal pipes to earthenware pipes,
substantially as hereinbefore described and illustrated by the annexed drawings.
2nd. The improved means for connecting metal pipes together, substantially as
herein before described and illustrated by the annexed drawings.
Dated this 13th day of April 1895
THOMAS ROBINSON,
127, Ramsden Road, Wardle, in the County of Lancaster, Plumber.