In- PROVEMENTS IN THE MANUFACTURE OF TAPER TUBES AND RODS, AND IN APPARATUS EMPLOYED THEREIN.
Year: 1870

page_text: "
LETTERS PATENT to Henry Kesterton, of No. 9, Stratford Road,
Birmingham, in the County of Warwick, for the Invention of "In-
PROVEMENTS IN THE MANUFACTURE OF TAPER TUBES AND RODS, AND IN
APPARATUS EMPLOYED THEREIN.
"
Sealed the 9th May 1871, and dated the 1st December 1870.
PROVISIONAL SPECIFICATION left by the said Henry Kesterton at the
Office of the Commissioners of Patents, with his Petition, on the
1st December 1870.
I, HENRY KESTERTON, of No. 9, Stratford Road, Birmingham, in the
County of Warwick, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF TAPER TUBES AND RODS, AND IN
APPARATUS EMPLOYED THEREIN,” to be as follows:—
This Invention has for its object improvements in the manufacture of
taper tubes and rods, and in apparatus employed therein. I employ
for this purpose a pair of rollers, and each roller has a groove formed
spirally around it, making several convolutions to obtain the requisite
length. The groove varies in depth and width in accordance with the
taper of the tube it is desired to produce, being of the smaller diameter

page_text: at one end and of the larger diameter at the other end. The two rollers
are so geared together that the grooves meet to form an eye, which eyc
as the rollers revolve varies continually in size. A taper strip of iron
having been cut and bent approximately to the proper form is heated to
a welding heat and is passed between these rollers. The pressure welds &
the edges of the strip together, and a taper tube is thus obtained. The
metal may be supported by means of a taper mandril. Taper rods may
be rolled in a similar manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Kesterton in the Great Seal Patent Office 1
on the 1st June 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
KESTERTON, of No. 9, Stratford Road, Birmingham, in the County of
Warwick, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 1
Letters Patent, bearing date the First day of December, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Henry Kesterton, Her special license
that I, the said Henry Kesterton, my executors, administrators, and
assigns, or such others as I, the said Henry Kesterton, 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 TAPER TUBES AND RODS, AND IN APPARATUS EMPLOYED
THEREIN," upon the condition (amongst others) that I, the said Henry
Kesterton, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly:
describe and ascertain the nature of the said Invention, 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.

page_text: NOW KNOW YE, that I, the said Henry Kesterton, 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:-
This Invention has for its object "improvements in the manufacture
of taper tubes and rods, and in apparatus employed therein. I employ
for this purpose a pair of rollers, and each roller has a groove formed
spirally around it, making several convolutions to obtain the requisite
length. The groove varies in depth and width in accordance with the
taper of the tube it is desired to produce, being of the smaller diameter
at one end and of the larger diameter at the other end. The two rollers
are so geared together that the grooves meet to form an eye, which eye
as the rollers revolve varies continually in size. A taper strip of iron-
having been cut and bent approximately to the proper form is heated to
a welding heat, and is passed between these rollers. The pressure welds
the edges of the strip together and a taper tube is thus obtained. The
metal may be supported by means of a taper mandril. Taper rods
be rolled in a similar manner.
may
In order that my said Invention may be most fully understood and
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of a pair of rolls adapted to roll taper
tubes or rods; Figure 2 is a plan, Figure 3 a vertical section, and Figure 4
an end elevation of the same.
a, a, are standards in which the rolls b, b, are carried in bearings
which can be set towards each other so as to keep the rollers in contact
by screws c, c. The rollers are geared together by spur wheels d, d, and
they have spiral grooves on their peripheries which meet to form circular
eyes. To produce a taper welded tube the metal is prepared for these
rolls in the manner usual in making welded iron pipes of uniform section,
and having been brought to a welding heat is entered between the rolls
when the rolls are in a position to take it and expose it to a sufficient
nip. The metal is passed several times between the rolls, and each time
it is entered in such a way as to reduce its diameter somewhat at each
successive roll. Mandrils may or may not be employed, as when rolling
tubes of uniform section.

page_text: The same apparatus may be used for rolling taper rods from rods of
uniform section. The metal suitably heated is passed several times
through the rolls, so as gradually to draw it down at one end.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that I claim
the improvements in the manufacture of taper tubes and rods, and in
apparatus employed therein, substantially as described.
In witness whereof, I, the said Henry Kesterton, have hereunto
set my hand and seal, this Thirtieth day of May, in the year of
our Lord One thousand eight hundred and seventy-one.
H. KESTERTON. (L.S.)