Improvements in the Connections or Joinings of Cold Lined Lead or Composite Pipes.
Year: 1898

page_text: Date of Application, 27th July, 1333-Accepted, 1st Oct., 1898
COMPLETE SPECIFICATION.
Improvements in the Connections or Joinings of Cold Lined Lead or
Composite Pipes.
I, EDWIN WALKER, of High Street, Heckmondwike, in the County of York,
Plumber, lo 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:-
The object of my invention is to so arrange and make the connecting joints of
lead and composite pipes lined with tin or other material by what is known as the
cold process, in such a manner that, the water or other fluid passing through the
tin or other internal pipe, is prevented coming in contact with the lead or composite
pipe, or with the nonconducting material placed between the tin or other lining
tube and the lead or composite pipe.
In describing my invention in detail. reference is made to the accompanying
sheet of drawings, in which Fig. 1 represents a longitudinal sectional view show-
ing my system of construction of joint applied to a branch pipe
Fig. 2 represents a similar section showing the coupling applied to a straight
length of pipes.
Fig. 3 is a similar view showing a modified connection.
and
Fig. 4 a section showing the coupling of lead or composite pipes to an elbow,
Fig. 5 a section showing a modified arrangement of making a joint between
one pipe and another. Corresponding parts are indicated by similar letters where
they appear.
The lead or composite pipe A, is constructed with an internal lining tube B, of
block tin or other material, and around the internal lining tube B, is wrapped a
covering of non-conducting material C, previous to the insertion of the internal
tube within the lead or composite pipe A; the internal lining tube B. with cover-
ing C, after insertion, are secured within the lead or composite pipe A. in the
manner as hitherto.
As is well known, the introduction of a tinned or other internal lining tube
within a lead or composite pipe, is to prevent the water or other fluid coming in
contact with the lead or composite pipe A, or with the covering of non-conducting
material around the internal tube B, the latter of which amongst other things is
for reducing the liability of the water or other liquid within the pipe freezing.
In order to effectually retain the water or other liquid within the inner tube B,
and prevent it coming in contact with the non-conducting material C, and with
pipe A, I accomplish the joining between one length of pipe A, and another in
the following manner.
The internal lining tube B, covered with non-conducting material C, extends
some distance beyond the end of the lead or composite pipe A, and over the non-
conducting material C, is placed a ferrule D, of brass or the like, with a flange E,
at the outer end, over which the internal tube B, is bent back or flanged at F,
around the circumference of which, the flange may if preferred, be soldered to the
face of the flange E, of ferrule I). In either case a threaded nut G, is placed upon
the ferrule.

page_text: "
In the case of joining a branch pipe to a supply pipe, each end of the lead or
composite pipe A, is provided with a ferrule 1), of brass or the like, which may be
secured to the lead or composite pipe A, by what is known as a wiped joint W,
or in any other convenient manner, the junction piece T, shown by Fig. I may ba
of brass or the like, and is threaded at each projection or branch, the ends of
which at H, are faced to a true surface.
On bringing the flanged portion F, of the internal lining tube B, formed in the
manner as described against the faced end H of the junction piece T, and screw-
ing the nut G, on the threaded projection or branch of junction piece T, the
flange F, of the internal lining. tube B, is compressed tight between the flange
portion E, of the ferrule 1), and the faced end H, of junction piece T, thereby
making a hermetically sealed joint, by which the liquid is prevented percolating.
from the internal lining tube, B, to the covering C, damping same and thus destroy
ing the purpose for which it is inserted; and also from coming into contact with
the lead or composite pipe A,
Instead of forming the ferrules 1), at the ends of the pipes as shown and described,
I can accomplish my object by forming them as shown at J, Fig. 3, in which case
the lead or composite pipe A, is inserted within the collar J, of the ferrule and
secured thereto such as by soldering around the end at K. The internal lining
tube. B; extends through the screwed portion of the ferrule, and is flanged back
at.F. as before described, the jointing of the two portions of the pipe being accom-
plished by the nut N, which in this case is threaded with a right and left hand
thread, so that on screwing the same up, the flanged ends F, of the two internal
lining tubes B, are brought together and a fluid tight joint made; or if desired,
two lengths of pipe may be coupled together by securing ferrules to each pipe as
shown by Fig. 2, one of which is provided with a nut G, similar to those shown and
described in connection with Fig. 1.
The jointing between one pipe and another may be accomplished by forming
que end of the hole through the ferrule 1), with a conical enlargement, and cut-
Ting the internal lining tube B, and covering C, straight with the end of the said
ferrule D, and to the end of the junction piece T, forming a conical but project-
ing termination P, sec Fig. 5, the end of the conical projection P, being of such
diameter so as to enter the hole of the internal lining tube B, so that when placed
together and screwed up by the nut G, the internal lining pipe B. and non-con-
ducting material are expanded as shown and a tight joint formed between the
interior of tube B, and non-conducting material.
Having now particularly described and ascertained the nature of my
invention, and in what manner. the same is to be performed, 1 declare that what
I claim is:-
1. The method of constructing joints between two internally lined lead or com-
posite pipes A, by securing brass or like ferrules D, to the said pipes, turning
back or otherwise forming with the internal tube B. a flange F, at the ferrule end
of the said tube and compressing the said flanging together or against. a junction
piece or ferrule, all arranged substantially in the manner as hereinbefore described
and. shown.
2. The method of constructing joints between two internally lined lead or com-
posite pipes A, by securing brass or like ferrules D, to the said pipes and expand-
ing the said lining tube and non-conducting material, substantially in the manner
as shown and described in connection with Fig. 5.
1000
JOHN WAUGH,
Agent,, Sunbridge Chambers, Bradford.