IMPROVED MEANS FOR JOINING LEAD PIPES
Year: 1885

page_text: I CHRISTOPHER SHIELDS of 20 Chatsworth Street Chorlton-upon-Medlock
Manchester in the County of Lancaster Mechanic do hereby declare the nature
of my invention for "IMPROVED MEANS FOR JOINING LEAD PIPES
to be as
follows:-
33
The object of this invention is to afford facility for making joints in lead pipes
without any necessity for the use of solder.
I provide two metal rings, one flanged and one screwed somewhat like an
ordinary union joint but flared out to a conical shape inside and of such a size as
to pass over the ends of the two pieces of lead pipe to be joined which are to be
cut square off at the ends.
The flanged ring is provided with a screw cap which fits over the screwed portion
of the other ring.
The cap and flanged ring being passed over the end of one pipe, and the screwed
ring over the other, the respective ends of the lead pipe are flared out to fit the
conical interior of the two rings by means of an ordinary turn peg as used by
plumbers.
I then bring the two ends of the pipes together introducing between the two
flared mouths thereof a double conical metal ferrule provided with a central flange.
As the cap is screwed on, the flared ends of the lead pipes become firmly held
between the inner conical ferrule and the conical interiors of the flanged ring and
screwed ring and on the cap being tightened by a spanner the joint is made
perfectly tight.
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester.

page_text: I CHRISTOPHER SHIELDS of 20 Chatsworth Street Chorlton-upon-Medlock
Manchester in the County of Lancaster Mechanic do hereby declare the nature
of my invention for "IMPROVED MEANS FOR JOINING LEAD PIPES" 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 this invention is to afford facility for making joints in lead pipes
without any necessity for the use of solder.
The nature of my said invention will be readily understood on reference to the
sheet of drawings hereto annexed and the following explanation thereof.
Fig. 1. on the drawings is a section showing the ends of two lead pipes prepared
for joining with the appliances detached.
Fig. 2 shows a face view and side elevation of the double coned flanged ferrule
hereinafter referred to.
Fig. 3 is a section showing the joint completed and Fig. 4 is an external view of
the same.
a, a and a¹, a' are the two pieces of lead pipe to be joined.
I provide two metal rings b, b and c, e the former screwed externally and the
latter made with a shallow flange or shoulder at d, d somewhat like an ordinary
union joint but flared out to a conical shape inside and of such a size as to pass
over the ends of the two pieces of lead pipe a, a and a¹ a¹ to be joined which are
to be cut square off at the ends. The ring c, c is also provided with a screw
cap e, e which fits over the screwed portion of the other ring b, b.
The screw cap e, e and flanged ring c, c being passed over the end of one
pipe a¹, a and the screwed ring b, b being passed over the other pipe a, a as
shown at Fig. 1. the respective ends of the two lead pipes are flared out to
correspond with the conical interior of the two rings b, b and c, c by means of an
ordinary turn pin or peg as used by plumbers.
I then bring the two ends of the pipes a, a and a¹, a¹ towards each other
introducing between the two fared mouths thereof a double conical flanged metal
ferrule so that the two mouths of the pipes close over the conical surface of the
ferrule and the flange f¹ comes between their two ends. The rings b, b and c, c
are then brought over the respective flared ends of the two pipes and the screw
cap e, e is screwed onto the screwed part of the ring b, b and as the cap e, e is
screwed on the flared ends of the lead pipes become firmly held between the
flange f of the double conical ferrule and the conical interiors of the rings b, b
and c, c and on the cap e, e being tightened by a spanner the lead is compressed
and the joint is made perfectly tight as shown at Figs. 3 and 4.
To prevent the lead from expanding too much in an outward direction and to
make the joint more perfect I turn circular notches or grooves *, * in the sides of
the flange fand in the surface of the double conical ferrule, and also in the inner
ends of the rings b, b and c, c as clearly shown on the drawings.

page_text: 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
The combination with the ordinary union joint, of a double conical flanged
ferrule substantially in the manner and for the purposes hereinbefore set forth
and
Secondly. I claim turning or forming circular grooves in the faces of the flange,
and in the inner ends of the rings for the purpose of perfecting the joint, and
preventing the lateral expansion of the lead.
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester.