AN IMPROVEMENT OR IMPROVE- MENTS IN THE MANUFACTURE OF CERTAIN KINDS OF TUBES, AND IN NUTS FOR AND HEADS OF SCREWS
Year: 1854

page_text: LETTERS PATENT to Joseph Madeley, of Walsall, in the County of
Stafford, Machinist, for the Invention of "AN IMPROVEMENT OR IMPROVE-
MENTS IN THE MANUFACTURE OF CERTAIN KINDS OF TUBES, AND IN NUTS FOR
AND HEADS OF SCREWS."
Sealed the 26th May 1854, and dated the 3rd January 1854.
PROVISIONAL SPECIFICATION left by the said Joseph Madeley at the
Office of the Commissioners of Patents, with his Petition, on the 3rd
January 1854.
I, JOSEPII MADELEY, of Walsall, in the County of Stafford, Machinist, do
hereby declare the nature of the said Invention for "AN IMPROVEMENT OR
IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN KINDS OF TUBES, AND IN NUTS FOR
AND HEADS OF SCREWS," to be as follows:-
My said Invention consists, firstly, in a method of making iron tubing having
a cylindrical form internally, and being hexagonal (or of other prismatic.
figure) externally.
And, secondly, of converting the said tubing into nuts and heads for screws,:
gas fittings, and other purposes. In carrying my Invention into effect, I take
two strips or bars of iron having the figure shewn in section in Figure 1, that
is to say, the figure of one-half the tube to be made, and I place the two con-
cave faces together and raise them to a welding heat. I then pass the same,
between rolls or draw them through a draw plate, whereby they become welded

page_text: together, and form a tube of the form shown in section in Figure 2, and in side
view in Figure 3. By then cutting the said tube transversely, it may be divided
into hexagonal nuts or heads of screws.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Madeley in the Great Seal Patent Office on the
1st July 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
MADELEY, of Walsall, in the County of Stafford, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent bearing date the Third day of January, in the year of our Lord One
thousand eight hundred and fifty-four, in the seventeenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Joseph Madeley, Her special licence that I, the said Joseph Madeley, my
executors, administrators, and assigns, or such others as I, the said Joseph
Madeley, 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 "AN IMPROVEMENT OR
IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN KINDS OF TUBES, AND IN NUTS FOR
AND HEADS OF SCREWS," upon the condition (amongst others) that I, the said
Joseph Madeley, by an instrument in writing under my hand and seal, should
particularly describe and ascertain the nature of the said Invention, and in

page_text: 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Joseph Madeley, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
thereof (that is to say):-
My Invention consists, firstly, in a method of making such kinds of iron
tubing as have a cylindrical figure internally, and are hexagonal or of other
prismatic figure externally, which said method is also applicable to the manu-
facture of tubes, the external figure of which is fluted or figured in various
ways, as well as of tubes, the external figure of which is cylindrical.
Secondly, in cutting hexagonal or tubes of other prismatic figure in the
manner herein-after explained, so as to form therefrom nuts for and heads of
screws.
In carrying the first part of my Invention in effect I proceed as follows:-
I roll bars or rods of iron of the form shewn in section in Figure 1, that is to
say, having the figure of one half of the tube to be made. I take two such
bars, Figure 1, and place their concave sides together, as illustrated in the
section, Figure 2; I raise the same to a welding heat, and pass them between
rolls or draw them through a draw plate or otherwise press them, whereby
they become welded together into a tube of the form represented in section,
Figure 2.
Instead of rolling the half tubes of the form shewn in Figure 1, I some-
times roll them of the form represented in section in Figure 3, that is to say,
I make the edges of one half a overlap the edges of the other half b; by this
modification of my Invention a more perfect joint is secured.
Figure 4 represents in section and side view a tube having a cylindrical
figure both internally and externally made according to my Invention, that is
to say, made of the hollow semi cylinders c, d, joined together at the points e, f.
The edges of the parts c, d, which are presented to each other and welded
together, may either be of the kind represented in Figures 1 and 2, or of the
kind represented in Figure 3 as well as in Figure 4. I sometimes also modify
my Invention in the manner illustrated in Figure 5, which said modification is
especially adapted for gas fittings, that is to say, I form on one or both of the
said half cylinders projections g at convenient intervals, so that when the tube
is cut into short pieces the projections 9 may serve to form attachments for
branch pipes, or instead of forming projections g at intervals, I sometimes form
a continuous block h, Figure 6, on one or both of the said half tubes, which

page_text: said block or blocks, when the tubes are cut into short pieces, may be formed
into the necessary connections for branch pipes, or may be used for such other
purposes as they are or may be applicable to.
I carry the second part of my Invention into effect as follows:-I take a
tube of the kind herein described with reference to Figures 2 and 3, and by
cutting the same into short pieces in planes perpendicular to the axis of the
tube, as indicated by the dotted lines in Figure 2, I form therefrom a series of
hexagonal nuts, which said nuts may be attached to the heads of pins or
screws by welding or otherwise. The said nuts, by having a concave thread
made in their interior, may also be used for nuts to engage on the ends of
screws.
Having now described the nature of my said Invention, and the manner of
carrying the same into effect, I wish it to be understood that I do not limit
myself to the precise methods herein described, and illustrated in the accom-
panying Drawing, as the same may be varied without departing from the
nature of my said Invention; but I claim as my Invention,―
Firstly, the methods herein described, and illustrated by the accompanying
Drawing, of forming iron tubes to be used for making nuts for and heads of
screws for gas fittings and for such other purposes as the same are or may be
applicable to, that is to say, by first forming two half tubes of the forms
described, and joining the same by welding.
Secondly, making nuts for and heads of screws by cutting into short pieces
a tube having a hexagonal or other prismatic figure, as herein described.
In witness whereof, I, the said Joseph Madeley, have hereunto set my
hand and seal, this Thirtieth day of June, in the year of our Lord One
thousand eight hundred and fifty-four.
Witness,
GEORGE SHAW.
JOSEPH MADELEY. (L.S.)