Improvements in and relating to Joint Pieces for Steam and other Pipes, Taps, and Vessels.
Year: 1895

page_text: Date of Application, 25th Sept., 1895
Complete Specification Left, 25th June, 1896-Accepted, 25th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Joint Pieces for Steam and other
Pipes, Taps, and Vessels.
I, ALEXANDER LIDDELL of No. 151 Rottenrow Glasgow County of Lanark
North Britain Brass Finisher do hereby declare the nature of this invention to be
as follows:-
:-
'
It relates to union joints or coupling pieces chiefly for steam and other pipes and
has for certain of its objects to produce a steam gas or fluidtight joint piece for
pipes of the kind named with or without the aid of solder putty soft or plastic
material: capable of rapid application for temporary or permanent service, of
easy removal and replacement, also adapted for re-use time after time without
deterioration.
A single ended joint piece according to this invention is made of hard or
composite metal for combination with a vossel pipe or pipes of soft or other metal :
it has a body and tail piece adapted for screwing or soldering to a pipe tank or
vessel and has an encircling collar screw threaded; squared faces for manipulation
with a key or spanner and a cone shaped open end. A cap or thimble pierced
with a hole through its crown is fitted over the cone shaped end and being screw
threaded inside and squared outwardly is united to the aforesaid screwed collar.
When the cap is detached from the body the pipe for combination therewith is
put through the hole therein and the end of the pipe "lipped" or tafted into a
trumpet mouth form is fitted upon the cone end of the body: the cap is then
screwed upon the body pressing the trumpet mouthed and cone ends together,
making an air and fluid tight joint: the bore hole in the cap pressing externally
upon the trumpet mouthed end of the pipe forms therewith a similarly impervious
joint.
The soldering above mentioned is for the purpose of uniting the tail piece to the
tank vessel or pipe and is not for combination with this improved joint.
:
A double ended joint piece, according to this invention is made of hard or
composite metal for combination with soft hard or composite metal pipes it has
a stock or body part with central bore, cone shaped ends and screw threaded
collars a screw threaded cap or thimble with a hole in its crown encloses each
cone shaped end and these caps are fitted upon the screw threaded collars. The
stock or body part and loose caps have squared faces for manipulation with a key
or spanner.
"
This joint piece is applied as a union for two pipes in the following manner;
each cap is removed from the body part and threaded on to a pipe: the end of
each pipe is then ")
"lipped or tafted into a trumpet mouthed form and the caps
are screwed on to the stock pressing the trumpet ends of the pipes upon the cone
ends of the stock until each joint is air and fluid tight..
F
A loose packing ring of metal or other substance being inserted within the cap
and pressed between it and the pipe has the effect of preventing the cap from
cutting into a soft pipe.
.Single double or multiple ended joint pieces are made in accordance with this
invention.
This screw threaded collar and cone shaped end enclosed within a screwing-on
cap or thimble piece having a hole in its crown is combined with a tap or cock for

page_text: gas steam or fluids and constitutes a joint piece for use conjointly with a trumpet
mouthed pipe as before described.
The hole in the thimble crown is sometimes made V shaped on the inside
adapting it to fit the trumpet shaped end of the pipe and render a washer
unnecessary.
Dated this 24th day of September 1895.
JOSEPH
LOCKWOOD,
263 Argyle Street, Glasgow, Agent for the Applicant.
Improvements in and relating to Joint Pieces for Steam and other
Pipes, Taps, and Vessels.
I, ALEXANDER LIDDELL of 18 Waddell Street, late of 151 Rottenrow,
Glasgow, County of Lanark North Britain Brass Finisher, 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:-
It relates to union joints or coupling pieces chiefly for steam and other pipes and
has for certain of its objects to produce a steam, gas or fluid-tight joint piece for
pipes of the kind named with or without the aid of solder, putty, soft or plastic
material, capable of rapid application for temporary or permanent service, of
easy removal and replacement, also adapted for re-use time after time without
deterioration.
The invention will be better understood if reference is made to the accompanying
drawings in which :-
Figure 1 is a view in perspective shewing a double ended joint-piece made in
accordance with this invention and pipes for association therewith.
Figure 2 is a view in section shewing a double ended joint piece made in
accordance with this invention and with pipes for its application.
Figure 3 is a view partly in section shewing the application of this invention
to a tap.
Figure 4 is a view in section of a single ended joint piece made in accordance
with this invention.
Figures 5 and 6 represent this improved joint piece with three and four ends.
Similar letters of reference and numerals indicate corresponding parts throughout
the drawings.
:
A single ended joint piece Figs. 3 and 4 according to this invention is made of
hard or composite metal, such as steel or brass for combination as hereafter
described and drawn with a vessel A pipe B or pipes, of soft or other metal: it
has a body part C and tail piece D adapted for screwing or soldering to a pipe B
tank A or vessel and has an encircling collar E screw threaded squared faces F
for manipulation with a key or spanner, and a cone shaped open end G. It is
sometimes made with a closed part d' Fig. 4 as a stop end or open part d'Fig. 3
for connection with a vessel or pipe. The cone G is made either upon the tail D
or tap portion K Fig. 3. A cap or thimble H, pierced with a hole h' through
its crown is fitted over the cone shaped end G and being screw threaded inside
and squared outwardly at F is united to the aforesaid screwed collar E. When
the cap His detached from the body C, the pipe B, for combination therewith, is
put through the hole h¹, therein, and the end 6' of the pipe B, lipped or tafted
into a trumpet-mouth form, is fitted upon the cone shaped end G of the body
part C; the cap H is then screwed upon the body pressing the trumpet mouthed
and cone shaped ends and G together, making an air and fluid tight joint: the
bore hole in the cap H pressing externally upon the trumpet mouthed end 6¹ of

page_text: the pipe B forms therewith a similarly impervious joint. The hole ¹ in the
thimble crown his sometimes made V shaped on the inside see Fig. 4, adapting it to
fit the outside of the trumpet shaped end 6' of the pipe B and render a washer J
unnecessary.
A loose packing ring or washer J, made of metal or other substance is inserted
within the cap H before the end of the pipe B is "
lipped" or "tafted" into the
trumpet-mouthed form and is pressed between the cap H and the pipe at 61.
and has the effect of preventing the cap H from cutting into or twisting a soft
pipe B.
This ring or washer J is made of, a round or rounded section, as shewn in the
drawings, for pressing the trumpet mouthed end 6' of the soft or composite pipe B
upon the cone shaped end G of the body piece. When this cap H containing this ring J
is fitted upon a pipe B, and these are combined with the body piece C and screwed
together the ring does not rotate with the cap H as the latter tightens up the
joint neither does the rotation of the cap H twist the pipe B. The cap H slips
upon and against the ring J which it presses upon the cone shaped end G and
forms a thoroughly fluid, gas or steam tight joint.
A double ended joint piece Figs. 1 and 2 according to the invention herein described
and drawn, is made of hard or composite metal for combination with soft hard or
composite metal pipes B: it has a stock or body part C with central bore c¹ cone
shaped ends G and screw-threaded collars E: a screw threaded cap or thimble H
with a hole in its crown * encloses each cone shaped end G as herein described
and drawn and these caps H are fitted upon the screw-threaded collars E. The
stock or body part C and loose caps H have squared faces F for manipulation with
a key or spanner.
"
This joint piece C, H, H, Figs. 1 and 2 is applied as a union for two pipes B, B,
in the following manner: each cap H, enclosing a ring J is removed from the
body part C and threaded on to a pipe B: the end of each pipe is then "lipped
or "tafted" into a trumpet mouthed form b' and the caps H are screwed on to the
stock C pressing the trumpet ends 6 of the pipes B upon the cone shaped ends G
of the stock C until each joint is air and fluid tight as before described.
This screw-threaded collar E and cone shaped end G enclosed as above described
within a screwing-on cap or thimble piece H, having a hole h¹ in its crown h² is
combined with a tap K Fig. 3 or cock for gas steam or fluids and constitutes a
joint piece for use conjointly with a trumpet mouthed pipe B, b' as hereinbefore
described and drawn.
Single, double or multiple ended joint pieces are made in accordance with this
invention see Figs. 1 to 6 of the drawings.
The soldering hereinbefore mentioned is for the purpose of uniting the tail
piece D Fig. 3 to the tank or vessel A or to a pipe and is not for combination with
this improved joint.
Putty or other soft or plastic material may be inserted between the faces of the
cone G and bell mouth 61 but such aids are not required for effecting a thoroughly
tight joint, impervious to gas steam or fluid under pressure. The ring or washer J
when forced upon the outside of b¹ by screwing the cap H upon the threaded
collar E of the stock C effects an absolutely impervious joint without aid from
putty or other material.
I am aware that, previous to my invention conical shaped joint pieces for
combination with trumpet shaped or bell mouthed ends of pipes and screwed
unions with squared facets have been in use for water and other pipe joints: it
will therefore be understood that I do not claim such devices broadly as my
invention.
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 :-
First. In a metal joint piece for gas or steam pipes the combination therewith

page_text: of the stock C, cone G, cap H and metal ring J all substantially as herein
described with reference to the drawings, or any mere modification thereof for the
purposes specified.
Second. In a metal joint piece for water or fluid pipes the combination therewith
of the stock C, cone G, cap H and metal ring J all substantially as herein described
with reference to the drawings or any mere modification thereof for the purposes.
specified.
Third. In a metal joint or joint piece for a water or fluid tap the combination
therewith of the screw threaded collar E, cone G, cap Haud metal ring J all
substantially as herein described, with reference to the drawings or any of them or
any mere modification thereof for the purposes specified.
Fourth. In a metal joint or joint piece for a gas or steam cock the combination
therewith of the screw threaded collar E, cone G, cap H and metal ring J all
substantially as herein described, with reference to any or all of the drawings or
any mere modification thereof for the purposes specified.
Fifth. In a metal joint or joint piece for a water or fluid tap the combination
therewith of the screw threaded collar E, cone G, and cap H all substantially as
herein described with reference to the drawings or any mere modification thereof
for the purposes specified.
Sixth. In a metal joint or joint piece for a gas or steam cock the combination
therewith of the screw threaded collar E, cone G, and cap H all substantially as
herein described with reference to the drawings or any mere modification thereof
for the purposes specified.
Seventh. In a metal joint or joint piece for gas or steam pipes the combination
with the screwed cap H and bell mouth b¹ of the metal ring J all substantially as
herein described with reference to the drawings or any mere modification thereof
for the purposes specified.
Eighth. In a metal joint or joint piece for water or fluid pipes the combination
with the screwed cap H and bell mouth 61 of the metal ring J all substantially
as herein described and drawn or any mere modification thereof for the purposes
.specified.
Dated this Twenty-fourth day of June 1896.
JOSEPH LOCKWOOD,
263 Argyle Street, Glasgow, Agent for the Applicant.