IM- PROVEMENTS IN THE MEANS AND APPARATUS FOR FORMING FLANCHES ON CYLINDERS, TUBES, OR HOLLOW CYLINDRICAL BODIES
Year: 1877

page_text: LETTERS PATENT to Gathorne Kellett, Foreman Boiler Maker, Thomas
Holdsworth, and John Levick, of the Firm of Holdsworth & Sons, Croft Street
Boiler Works, Bradford, in the County of York, for the Invention of "IM-
PROVEMENTS IN THE MEANS AND APPARATUS FOR FORMING FLANCHES ON
CYLINDERS, TUBES, OR HOLLOW CYLINDRICAL BODIES."
Sealed the 11th January 1878, and dated the 8th October 1877.
PROVISIONAL SPECIFICATION left by the said Gathorne Kellett, Thomas
Holdsworth, and John Levick at the Office of the Commissioners of Patents
on the 8th October 1877.
GATHORNE KELLETT, Foreman Boiler Maker, THOMAS HOLDSWORTH, and JOHN
LEVICK, of the Firm of Holdsworth & Sons, Croft, Street Boiler Works, Bradford,
in the County of York. "IMPROVEMENTS IN THE MEANS AND APPARATUS FOR
FORMING FLANCHES ON CYLINDERS, TUBES, OR HOLLOW CYLINDRICAL BODIES."
Our Invention relates to forging or forming under a steam hammer or other
suitable hammer, hydraulic, or other suitable means, the flanches of wrought-iron
or steel cylinders or tubes, more particularly employed in the construction of steam
boilers. For this purpose we fit in the hammer head of a steam hammer (by
preference) a block, the face of which is made to suit the curvature of the bend of
Blanche to be formed; different kinds of face blocks are employed for the different
kinds of shaped flanges required to be formed. On the front of the steam hammer
is fitted a strong iron framing, and on the end of this frame near the hammer is
fitted a strong mandril made curved to suit the cylindrical cylinders or tubes; the
sides of the frame or of the mandril are formed with bosses; or brackets having
bosses may be fitted to the sides, and near the front of the framing are fitted or
formed bosses; through these bosses work shafts, on which are fitted rollers made
to revolve. On the frame of the steam hammer, or on the back of the frame of the
apparatus, is fitted a bracket, on which are fitted blocks made to move up and
[Prins 621

page_text: down in heads provided for the purpose; in the blocks are fitted loose rollers, which
work in the inside of the cylinder or tubes operated on, the rollers are set to suit
the different thicknesses of plates; these rollers work over the bottom rollers; on
the ends of the bottom roller shafts are fitted ratchet wheels, which are actuated by
pawls fitted on rods fixed to the hammer head.
We may employ instead of the ratchet wheels and inside rollers a ratchet circle,
made to open and shut, to fit over the cylinder or tubes to be flanged; the ratchet
circle is kept firmly fixed on the cylinder or tube by means of a cottar, and the
circle is actuated by a pawl fitted on a top shaft worked by the hammer head,
which gives the necessary turning to the cylinder or tube as the hammer is forming
the flanche.
When the bottom of the cylinder or tube to be flanged is heated to the necessary
heat, the cylinder or tube is passed over the bottom rollers and on the mandril; the
part to form the required size of the flanche is placed over the mandril; the inside
rollers are then lowered and fixed in position and the steam hammer started; the
blows of the hammer forge out the flanche, giving the required curve to the bend ;
the cylinder or tube is kept working round by means of the bottom and inside
rollers, and the hammer is kept giving a succession of blows to the revolving
cylinder or tube until the flange is formed; by these means we form inside and
outside flanches, producing better work with a great saving of labour.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gathorne Kellett, Thomas Holdsworth, and John Levick in the Great
Seal Patent Office on the 6th April 1878.
GATHORNE KELLETT, Foreman Boiler Maker, THOMAS HOLDSWORTH, and JOHN
LEVICK, of the Firm of Holdsworth & Sons, Croft Street Boiler Works, Bradford,
in the County of York. "IMPROVEMENTS IN THE MEANS AND APPARATUS FOR
FORMING FLANCHES ON CYLINDERS, TUBES, OR HOLLOW CYLINDRICAL BODIES."
The said Invention relates to forging or forming under a steam haminer, or any
other kind of hammer, hydraulic, or other suitable means, the flanches of wrought
iron or steel cylinders or tubes, more particularly employed in the construction of
steam boilers. For this purpose we fit in the hammer head of a steam hammer
(by preference) a block, the face of which is made to suit the curvature of the bend
of the flanche to be formed; different kind of face blocks are employed for the
different kind of shaped flanges required to be formed. On the front of the steam
hammer is fitted a strong cast-iron frame made with slides, on which works a
strong frame made curved to suit the cylindrical cylinders or tubes; the frame is
made to slide in and out by means of a screw, which is actuated by a hand wheel;
the screw regulates the position of the frame and of the front rollers, according to
the length of the cylinder or tube to be operated on. On the back end of the
foundation frame is fitted a frame, somewhat similar in shape to the front part of
the sliding frame; these frames are made with openings, through which work
sockets and in which rotate shafts fitted on each side of the foundation frame; on

page_text: these shafts are fixed four fluted rollers; these rollers can be moved in and out to
suit the different diameters of the cylinders or tubes; the shafts and rollers are
actuated by a ratchet wheel fixed on one of the shafts; this ratchet wheel is worked
by a pawl fitted on a lever, and the lever is actuated by rod fitted to the hammer
head; on the ends of the shafts are fitted chain wheels over which works an endless
chain, this chain actuates the other shaft and rollers.
The sliding frame is made with brackets, in which is fitted a lever working on
a stud; the end of the lever is fitted with a loose roller which works in the inside
of the cylinder or tube, and the roller is kept in position on the plates of the
cylinder or tube by a moveable strap lever, in which is fitted a screw to set the
roller to the different thickness of plates.
When the bottom end of the cylinder or tube to be flanged is heated to the
necessary heat, the cylinder or tube is passed over the four fluted rollers and on
the mandril, which is made to suit the curve to be given to the flanche; the part
to form the required size of the flanche is placed over the mandril; the inside
rollers, which are the roller fitted to the sliding frame and the two inside rollers
fitted on moveable levers which are fixed on a shaft; the rollers are actuated by a
handle and kept pressed on the inner side of the cylinder or tube, the inside rollers
are fixed in position and the steam hammer started; the blows of the hammer
forge out the flanche, giving the required curve to the bend; the cylinder or tube
is kept working round by means of the fluted rollers and inside rollers, and the
hammer is kept giving a succession of blows to the revolving cylinder or tube until
the flanche is formed; by these means we form inside and outside flanches, pro-
ducing better work with a great saving of labour.
But in order to enable our improvements to be better understood, we will proceed
to more particularly describe the same by reference to the accompanying Drawing,
in which,--
-
Figure 1 represents a side elevation of a steam hammer and flanches forging
apparatus; Figure 2, front view; and Figure 3, plan of the same.
Figure 4 represents on a larger scale a mandril and block for forging flanches,
forming water spaces of upright boilers.
Similar letters of reference are used to represent similar parts.
A, steam hammer, to which is fitted a strong iron frame B, having slides C, on
which works a sliding frame D; this frame is actuated by a screw E, fitted in an
opening F, formed in the top plate of the frame B, the screw is turned right or left
by the wheel G, bringing the frame D forward or backward to suit the different
lengths of cylinders or tubes to be flanched; on the back end of the frame B is
fitted a frame H, this frame and the sliding frame D are made curved at I to suit
the cylindrical cylinders or tubes; the ends of the frames are made with openings J,
in which are fitted sockets K, which are secured in position by nuts L; in the sockets
work shafts M and M¹, on which are fitted fluted rollers N and N'; the rollers
fitted to the sliding frame are fitted with keys, which work in slot holes cut in the
shafts to allow the rollers to be moved forward or backward with the sliding
frame D to suit the different lengths of the cylinders or tubes to be operated on.
The front shaft is actuated by a ratchet wheel O, which is worked by a pawl fitted
to a lever P, and is actuated by a rod Q fixed to the hammer head R as the
hammer is kept giving a succession of blows; the rod Q is worked up and down,
actuating the lever and pawl, turning the ratchet wheel, shaft M, and fluted
rollers N; on the shaft M is fitted a chain wheel S, which works an endless
chain T, and which actuates a chain wheel U, fitted on the shaft M², turning the
shaft and fluted rollers N1; the fluted rollers N and N¹ keep the cylinder or tube
working round until the flanche is formed, this flanche is formed by the face
block V, fitted in the hammer head R; different kinds of face blocks are employed
which are fitted in the hammer head; the face is made to suit the curvature of the
bend of the flanche to be formed, and also different kinds of mandrils W are fitted
to the frame B to suit the face blocks.
Figure 4 represents a face block X, to forge out the water spaces for upright

page_text: boilers. Rollers Y and Z working inside the cylinder or tube are employed, the
roller Y is fitted on a lever A¹, this lever works on a stud B¹, fitted in brackets C¹,
cast on the sliding frame D; the lever and roller can be lowered in the frame when
placing or removing a cylinder or tube, and the roller is kept in position in the
inside of the cylinder or tube by a belt lever D¹ which works on a stud fitted in
the brackets Ci; on the top of the belt is formed a boss E¹, in which works a
screw F; this screw when the roller is in position is screwed on the lever A¹,
preventing it moving out of position. The back rollers Z are fitted on levers G¹,
fitted on a small shaft H¹, and are connected to links I which are fitted on a
shaft J, the shaft links and rollers are actuated by a handle K', which brings the
rollers Z in position in the inside of the cylinder or tube, and lifts up the same
when the flanche is formed.
When the end to be flanched is heated to the necessary heat the cylinder or tube
is placed on the mandril W and on the curved plates H, the fluted rollers having
first been fixed to the required position, the inside rollers Y and Z are then fixed
in position and the steam hammer started, and kept giving a succession of blows to
the revolving cylinder or tube until the flanche is formed; by these means we form
inside and outside flanches, producing better work with a great saving of labour.
Having thus described our improvements, and the best means we are acquainted
with for carrying the same into effect, we would have it understood that we do not
confine ourselves to the precise details shewn and described, as they may be varied
without departing from the peculiar character of the Invention; but what we do
claim is, the general arrangement, construction, and employment of apparatus for
forging or forming under a steam hammer, or any other kind of hammer, hydraulic,
or other suitable means, the flanches of wrought iron or steel cylinders or tubes,
more particularly employed in the construction of steam boilers, substantially as
herein before described and represented by the Drawing annexed.
In witness whereof, we, the said Gathorne Kellett, Thomas Holdsworth, and
John Levick, have hereunto set our hands and seals, this Fifth day of April,
in the year of our Lord One thousand eight hundred and seventy-eight.
[L.S.)
THOMAS HOLDSWORTH.
(L.S.)
(L.S.)
Witness,
WALTER JAMES TURNER, C.E.,
Patent Agent,.
Bradford.
JOHN LEVICK.