Improvements in the Means of Connecting Pipes that may be employed for either High or Low Pressure.
Year: 1894

page_text: Date of Application, 20th Oct., 1894
Complete Specification Left, 18th July, 1895-Accepted, 24th Aug., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Means of Connecting Pipes that may be
employed for either High or Low Pressure.
I, RICHARD WIGAN, of 9 Maskell Street, Chorlton-on-Medlock, Manchester,
in the County of Lancaster, Bookkeeper, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a means for connecting pipes that may be used either
for high or low pressure.
The object of this invention is to obtain a perfectly watertight or steamtight
joint without requiring the employment of skilled labour to fit said pipes.
In this invention form a joint such as is represented in section by Fig. 1. in
the accompanying drawing, by means of a metallic socket as a which is formed
with an internal screw thread at or near each of the ends and c into which the
washers d are screwed; said washers are formed with holes e of the same diameter
as the pipes it is intended to unite and with an internal screw thread formed therein :
I construct the pipes with plain ends f¹ and with screwed portions f²: the
aforesaid plain ends are of a diameter that will pass easily through the holes e in
the washers d so as to permit the screwed portions of the pipes to be screwed
into the washers d; I place grooved packings 9 within the recess in the socket a
formed by the washers d, said packings being made of leather, india rubber, or
other pliable substance.
In order to construct a joint, the aforesaid packings g are placed within the case a,
and the washers d screwed into the ends of said case. The ends of the pipes fare
then inserted, and screwed into the washers d, when the inner sides of the packings g
will bear against the plain ends of said pipes and the connection is completed.
When the pipes are in use, the internal pressure forces the outer rims of the
packings g against the inner side of the socket a, and the inner rims of said
packings against the pipes, thereby effectually preventing any escape.
When the packings g are constructed of india rubber, or other like flexible
material that may be introduced through the holes intended for the insertion of the
ends of the pipes, the socket a and the washers d may be formed in one piece:
In order to permit expansion and contraction of the pipes f, the holes e may be
plain, and the screwed portions on the pipes dispensed with.
In a modification of my invention I form the socket a as represented in Fig. 2
with the washers d placed against the ends thereof and held together by means of
the bolts d'
Dated his 10th 1
1007
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
¡Agent for Applicant.

page_text: Improvements in the Means of Connecting Pipes that may be
employed for either High or Low Pressure.
I, RICHARD WIGAN, of 9 Maskell Street, Chorlton-on-Medlock, Manchester,
in the County of Lancaster, Bookkeeper, 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 couplings for pipes that may be used either for high or
low pressure, but particularly for pipes in which water or other fluid is held
or conveyed under great pressure, such as hydraulic pipes, steam pipes, and
the like.
The object of this invention is to obtain a perfectly watertight or steam tight
joint without requiring the employment of skilled labour to fit said pipes.
I attain this object by the means bereinafter described and as represented
on the accompanying sheet of drawings: In the several views shown therein
similar letters refer to similar parts. In this invention I construct a steam or
water tight joint by means of a coupling such as a shown in section in Fig. 1 on
the accompanying drawing, in which are contained U shaped packings g as
Figs. 5 and 6 formed of leather, india rubber, or other pliable substance that will
contract internally and expand externally when fluid pressure is introduced into
the groove g¹. I form an internal screw thread a' at or near the ends of the
aforesaid coupling a into which the washers b and c are screwed, each of said
washers being-formed externally with a corresponding screw thread, and also an
internal screw thread in the holes b and c into which the screwed portions f³ of
the pipes are screwed. The pipes fare formed with plain ends f¹ of a diameter
that will pass without resistance through the washers b and c.
1
In order to form a joint the aforesaid packings gare placed within the case a as
shown, with a space between their opposite edges, and the washers b and c screwed
into the ends of the said case: The ends of the pipes are then inserted and
screwed into the washers d and c with a space between the ends of said pipes
when the inner sides of the packings 9 will bear against the plain ends of the
pipes and the connection is completed. When the pipes are in use the fluid
enters the groove g' when the internal pressure forces the outer surface of the
packings against the inner surface of the socket a, and the inner surface of
said packings against the exterior portions f¹ of the pipes, thereby effectually
preventing any escape of water or other fluid from the joint: When the
packings g are constructed of india rubber or other like pliable substance that
may be introduced through the holes intended for the insertion of the ends of
the pipes, the socket a and the washers b and c may be formed in one piece
as shown in section in Fig. 2. In order to permit expansion and contraction
of the pipes f, the holes e may be plain and the screwed portions on the pipes
dispensed with, as represented in Fig. 3. In a modification of my invention I form
the socket a as represented in Fig. 4 with the washers b and c placed against the ends
thereof and held together by means of the bolts d and said washers may be either
screwed internally, or plain as shown on the drawing.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1st. In the construction of joints in pipes that may be used for either high or
low pressure, the combination of a coupling as a represented in Fig. 1 for forming
a connection but with a space between the ends of said pipes, Ushaped flexible

page_text: packings as g, and washers as b and c in the manner substantially as herein before
described.
2nd. In the construction of joints in pipes that may be used for either high or
low pressure, the combination of a coupling as a represented in either Figs. 2 or 3
for forming a connection but with a space between the ends of said pipes, and
U shaped flexible packings as g in the manner substantially as hereinbefore
described.
3rd. In the construction of joints in pipes that may be used for either high or
low pressure, the combination of a coupling as a represented in Fig. 4 for forming
a connection but with a space between the ends of said pipes, U shaped flexible
packings as g, and washers as c and b in the manner substantially as herein before
described.
4th. In the construction of joints in pipes in which steam, water or other fluid
is held or conveyed under great pressure, the combination of U shaped packings as g
and couplings for forming a connection but with a space between the ends of
the pipes, for the purpose and in the manner substantially as herein before
described.
Dated this 17th day of July 1895.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.