IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN FITTINGS FOR GAS, STEAM, AND WATER TUBES
Year: 1866

page_text: LETTERS PATENT to George Henri Marc Muntz, of Birmingham, in the
County of Warwick, Manufacturer, for the Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF CERTAIN FITTINGS FOR GAS, STEAM, AND WATER
TUBES."
Sealed the 7th December 1866, and dated the 16th June 1866.
PROVISIONAL SPECIFICATION left by the said George Henri Marc Muntz.
at the Office of the Commissioners of Patents, with his Petition, on the
16th June 1866.
I, GEORGE HENRI MARC MUNTZ, of Birmingham, in the County of
Warwick, Manufacturer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN FITTINGS FOR GAS, STEAM,
AND WATER TUBES," to be as follows, that is to say :-
My said Invention consists of certain improvements in the manufacture of
the joints or connections for wrought-iron tubes for the conveyance of gas,
steam, and water, such as, for instance, tees, crosses, or joints having any
number of ways; and in carrying out my Invention I take a plate of wrought
iron and punch a hole through the centre; I then take a bar rolled to a
proper section and bevilled on one edge, and form this into a short socket and

page_text: scarf weld it in the usual way; this socket is inserted into the plate and
almost through the centre hole, the bevilled edge of the socket being by
preference on the inside; I then place both plate and socket in a suitably
formed concave bottom die, and I employ a top die convex in form and
provided with a tapered plug, by which the bevilled edges of the socket are
bont down and welded, whilst the plate is at the same time bevilled on its
meeting edges and dished or turned up into a form of section which will, when
the edges are subsequently brought together and welded, form a complete
circle with the edges scarfed and lap welded; this constitutes a three-way or
tee joint. In making a four-way or cross joint I proceed in precisely the
same way as that last described, but my plate will be shorter to form one half
the barrel of the tee joint only, and putting two of these parts together and
welding them forms the cross or four-way joint; or by another mode I punch
two holes in a longer plate and insert two sockets in them, then bending the
plate round in the direction of its length and welding the meeting edges forms
the four-way joint. In making joints with more than four ways I proceed
in similar manner, but employing longer plates to receive a greater number
of sockets, so that when the plate is bent round each socket forms a radiating
arm from the common centre formed by the plate. I can also form this description
of joint by using more than one plate if preferred, as it may be convenient to
use two or more, each containing its required number of sockets to form when
combined the description of joint required. I also propose to form these joints
by raising the sockets out of the solid plate of metal by means of dies and
punches under force or pressure, and so to avoid welding the sockets into
the plates.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Henri Marc Muntz in the Great Seal Patent Office
on the 15th December 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HENRI MARC MUNTZ, of Birmingham, in the County of Warwick, Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said George Henri Marc Muntz, Her special license that I, the said

page_text: George Henri Marc Muntz, my executors, administrators, and assigns, or such
others as I, the said George Henri Marc Muntz, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN FITTINGS FOR GAS, STEAM,
AND WATER TUBES," upon the condition (amongst others) that I, the said
George Henri Marc Muntz, by an instrument in writing under my hand and
seal, should particularly describe and ascertain the nature of the said In-
vention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said George Henri Marc Muntz, do hereby
declare the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement (that is to say):-
--
My said Invention consists of certain improvements in the manufacture of
the joints or connections for wrought-iron tubes for the conveyance of gas,
steam, and water, such as, for instance, tees, crosses, or joints having any
number of ways; and in carrying out my Invention I take a plate of wrought
iron and punch a hole through the centre; I then take a bar rolled to a
proper section and bevilled on one edge, and form this into a short socket and
scarf weld in the usual way; this socket is inserted into the plate and
almost through the centre hole, the bevilled edge of the socket being by
preference on the inside; I then place both plate and socket in a suitably
formed concave bottom die, and I employ a top die convex in form and
provided with a tapered plug, by which the bevilled edges of the socket are
bent down and welded, whilst the plate is at the same time bevilled on its
meeting edges and dished or turned up into a form of section which will, when
the edges are subsequently brought together and welded, form a complete
circle with the edges scarfed and lap-welded; this constitutes a three-way or
tee joint. In making a four-way or cross joint I proceed in precisely the
same way as that last described, but my plate will be shorter to form one half
the barrel of the tee joint only, and putting two of these parts together and
welding them forms the cross or four-way joint; or by another mode I punch
two holes in a longer plate and insert two sockets in them, then bending the
plate round in the direction of its length and welding the meeting edges forins
the four-way joint. In making joints with more than four ways I proceed in

page_text: similar manner, but employing longer plates to receive a greater number of
sockets, so that when the plate is bent round each socket forms a radiating
arm from the common centre formed by the plate. I can also form this
description of joint by using more than one plate if preferred, as it may be
convenient to use two or more, each containing its required number of sockets
to form when combined the description of joint required. I also propose to
form these joints by raising the sockets out of the solid plate of metal by
means of dies and punches under force or pressure, and so to avoid welding
the sockets into the plates.
I claim the improvements in the manufacture of fittings for gas, steam, and
water tubes, in manner berein more fully set forth and specified.
In witness whereof, I, the said George Henri Marc Muntz, have hereunto
set my hand and seal, this Thirteenth day of December, in the year
of our Lord One thousand eight hundred and sixty-six.
GEORGE HENRI MARC MUNIZ (L.S.)