Iμ- PROVEMENTS IN TOOLS OR APParatus for EXPANDING TUBES
Year: 1875

page_text: LETTERS PATENT to Philip Carlyon, of Denmark Hill, in the County
of Surrey, Gentleman, and Francis Titterton, of Cloudesley Street,
in the County of Middlesex, Gentleman, for the Invention of “Iμ-
PROVEMENTS IN TOOLS OR APParatus for EXPANDING TUBES.”
PROVISIONAL SPECIFICATION left by the said Philip Carlyon and
Francis Titterton at the Office of the Commissioners of Patents,
with their Petition, on the 8th July 1875.
We, PHILIP CARLYON, of Denmark Hill, in the County of Surrey,
Gentleman, and FRANCIS TITTERTON, of Cloudesley Street, in the
County of Middlesex, Gentleman, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN TOOLS OR APPARATUS FOR EXPANDING
TUBES," to be as follows:-
Our Invention has for its object to expand the ends of boiler tubes
without the use of a hammer, sledge, or mallet for driving forward the
conical expanding tube, as has heretofore been usually the case.

page_text: In our improved tool, two, three, or more rollers (by preference three)
are placed or mounted in sockets in the head of a suitable stock, and a
conical expanding instrument is arranged centrally in the tool behind
the rollers. The shank of this conical expanding instrument passes
through a hollow screw, and is terminated at its end with a square nut
or head, whereby it may be turned by means of a spanner, ratchet,
brace, or other suitable instrument. The hollow screw is also terminated
by a square head which forms a prolongation of the square head of the
shank of the conical expanding instrument. The hollow screw which
carries the expanding instrument works in a female screw made inside
the stock, so that by turning the male screw in one direction the
expanding instrument is propelled forward so as to force out the rollers
laterally, and by turning it in the opposite direction it will be with.
drawn, and the rollers will thereby be allowed to retreat towards each
other.
In using our improved expanding tool the conical expander is drawn
back sufficiently to admit of the rollers at the end of the tool being
introduced into the end of the boiler tube, the conical expander is then
moved forward by turning the male screw until the rollers bear hard
against the tube; the tool is then turned round by means of the brace,
and the tube thereby expanded until the rollers work loose, when the
conical expander must be moved forward again by turning the male
screw. These operations must be repeated until the tube has been
expanded to the required extent, when the tool can be withdrawn from
the tube by first releasing the rollers from their grip by drawing back
the conical expander by turning the male screw in the opposite
direction.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Philip Carlyon and Francis Titterton in the
Great Seal Patent Office on the 8th January 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, PHILIP
CARLYON, of Denmark Hill, in the County of Surrey, Gentleman, and
FRANCIS TITTERTON, of Cloudesley Street, in the County of Middlesex,
Gentleman, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of July, in the year of
our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Philip Carlyon and Francis Titterton,
Her special licence that we, the said Philip Carlyon and Francis
Titterton, our executors, administrators, and assigns, or such others, as
we, the said Philip Carlyon and Francis Titterton, our executors, ad-
ministrators, 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 TOOLS OR
APPARATUS FOR EXPANDING TUBES," upon the condition (amongst others)
that we, the said Philip Carlyon and Francis Titterton, our executors
or administrators, by an instrument in writing under our, 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.
NOW KNOW YE, that I, the said Philip Carlyon, on behalf of myself
and of the said Francis Titterton, do hereby declare the nature of our
said Invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following state-
ment, reference being had to the Drawing hereunto annexed and to the
letters and figures marked thereon (that is to say) :-
Our Invention bas for its object to expand the ends of boiler tubes
without the use of a hammer, sledge, or mallet, for driving forward the
conical expanding tool, as has heretofore been usually the case.
In the accompanying Drawing Fig. 1 is an external elevation of our
improved expanding tool complete, the ratchet brace whereby it is
worked being shown partly in section; Fig. 2 is a longitudinal section
of the same without the ratchet brace; Fig. 3 is an end view of the
tool showing the ratchet brace in place on the square head of the
expanding instrument; Fig. 1 is a transverse section of the tool
taken in the lino 1, 2, of Figures 1 and 2.

page_text: In our improved expanding tool, two, three, or more rollers a, a, a,
(by preference three) are placed or mounted in sockets in the head b' of
a suitable stock b, and a conical expanding instrument c is arranged
centrally in the tool behind the rollers a, a. The shank of this conical
expanding instrument c passes through a hollow screw d, and is
terminated at its end with a square nut or head c¹, whereby it may be
turned by means of a spanner, ratchet brace, or other suitable instru-
ment e.
The hollow screw d is also terminated by a square head a
which forms a prolongation of a square head c¹ of the shank of the
conical expanding instrument c. The hollow screw d which carries the
expanding instrument c works in a female screw made inside the
stock b, so that by turning the male screw d in one direction the
expanding instrument c will be propelled forward so as to force out the
rollers a, a, laterally, and by turning the scrow d in the opposite
direction the conical tube e will bo withdrawn, and the rollers a, a, will
thereby be allowed to retreat towards each other.
In using our improved expanding tool the conical expander c is drawn
back sufficiently to admit of the rollers a, a, at the end of the tool being
introduced into the end of the boiler tube, the conical expander c is
then moved forward by turning the male screw d until the rollers bear
against the tube; the conical tool c is then turned round by means of
the brace, and the tube thereby expanded until the rollers a, a, work
loose, when the conical expander c must be moved forward again by
turning the male screw d. These operations must be repeated until the
tube has been expanded to the required extent, when the tool can be
withdrawn from the tube by first releasing the rollers a, a, from their
grip by drawing back the conical expander c, and by turning the male
screw d in the opposite direction. As the square heads c¹ and d¹ of the
conical expanding tool c and the male scrow d are in a line with each
other, the same spanner or ratchet brace e may be used to actuate both
parts, and when it is only required to actuate or rotate the conical tool c
without driving it forward, this may be done by placing the brace on
the tool in the position shown in Fig. 1; but when it is desired to move
forward the conical tool, this is done by lowering the brace on to the
square head d¹ of the screw d, as indicated by dots in Fig. 1.
Having now described our Invention of " Improvements in Tools or
Apparatus for Expanding Tubes," and having explained the manner of
carrying the same into effect, we claim as the Invention secured to us

page_text: by Letters Patent as aforesaid, the combination with the rollers a, a, a,
and the conical tool c, of the screw & working in a female screw or nut
n the stock b, so that by turning the said screw 6 the conical expanding
tool may be carried forwards and made to force the rollers a, a, outwards,
is herein set forth, and the use of a hammer or maul for forcing forward
the expanding tool, as heretofore, may be dispensed with.
In witness whereof, I, the said Philip Carlyon, have hereunto
set my hand and seal, the Eighth day of 'January, in the year
of our Lord One thousand eight hundred and seventy-six.