IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE OF CERTAIN PARTS STEAM BOILERS AND OF OTHER SIMILAR STRUCTURES
Year: 1883

page_text: LETTERS PATENT to Samson Fox of the Leeds Forge Company, Leeds, in
the County of York, Ironmaster for an Invention of IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR THE MANUFACTURE OF CERTAIN PARTS OF
PROVISIONAL SPECIFICATION left by the said Samson Fox at the Office of
the Commissioners of Patents on the 3rd September 1883.
SAMSON Fox, of the Leeds Forge Company, Leeds, in the County of York,
Ironmaster "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE
OF CERTAIN PARTS OF STEAM BOILERS AND OF OTHER SIMILAR STRUCTURES."
"
My improvements in machinery or apparatus for the manufacture of certain
parts of steam boilers and of other similar structures relates to means for flanging
the end plates of steam boilers whether such ends are in one piece or in sections, and
also bottoms or covers of pans or cisterns and other like articles. For this purpose I
provide a pair of suitably shaped rolls mounted in housings resembling those of an
ordinary rolling mill but in such wise that the rolls occupy an overhanging position
in relation to one of the housings. The peripheries of the rolls are so formed that
one shall work within a groove in the other, the space between them as seen in a
central cross-sectional view of the two rolls, being of V form or approximately so.
These rolls are suitably driven in either direction as may be required, one being
in a fixed position and the other provided with means for causing it to approach
and recede from the other during the operation of flanging a plate.
In order that a plate when heated all around its edge may be properly placed
in position for being operated upon by the above described rulls I provide in front
of them a suitable bed having a movable slide thereon. This slide is furnished
with a projecting pin or its equivalent to serve as an axis or centre of motion for
the plate to be operated upon, which for this purpose is perforated with a central
hole for the passage of the pin, or a special plate may be provided capable of
turning about a suitable axis or centre, and on to which the plate to be flanged

page_text: can be secured. When the plate to be operated upon is in position, its under
surface coincides with and rests upon one of the bevilled sides of the angular
periphery of the male V, roll which determines the form of the internal angle of
the plate when flanged. Means are provided for adjusting the position of the
plate radially and in relation to the rolls so as to give the required finished
diameter to the plate when flanged.
The movable or female V roll is caused to press upon the plate and to turn that
part which is to form the flange and which projects beyond the periphery of the
male V roll, over the edge thereof, so that as the two rolls rotate with the plate
between them it is caused to rotate about its own axis on the movable slide on
which it is mounted, and thus is by the rolls turned over or flanged all round at
one operation. Plates of other than circular or segmental form may be flanged by
my improved machinery or apparatus, by regulating the movement of said
movable slide (upon which such plate for the time being is mounted) either by
hand or by the action of a suitable "form" or cam" corresponding with the
configuration of the plate under treatment.
In addition to turning over the flange as above referred to, I sometimes form the
male V roll so as to act on and straighten or finish the edge of the newly turned
over flange ready for use.
In some cases I provide also a second pair of rolls for straightening or finishing
the edge of the flange. These additional rolls are arranged as close as practicable to
the beforementioned V rolls and are mounted upon a slide in such wise that a plate
in rotating shall pass between the additional rolls which are made adjustable on
their slide, so that while one of them acts on and straightens or finishes the edge
of the newly formed flange, the other shall act on the plain side of and support or
back up the plate against the straightening or finishing roll.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samson Fox in the Patent Office on the 25th February 1884.
SAMSON Fox, of the Leeds Forge Company, Leeds, in the County of York
Ironmaster, IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE
OF CERTAIN PARTS OF STEAM BOILERS AND OF OTHER SIMILAR STRUCTURES.
My improvements in machinery or apparatus for the manufacture of certain
parts of steam boilers and of other similar structures relate to means for flanging
the end plates of steam boilers whether such end plates are in one piece or in
sections, and also bottoms or covers of pans or cisterns and other like articles.
For this purpose I provide a pair of suitably shaped rolls mounted in housings
resembling those of an ordinary rolling mill, but in such wise that the rolls occupy
an overhanging position in relation to one of the housings. The peripheries of
the rolls are so formed that one shall work within a groove in the other, the space
between them as seen in a central cross-sectional view of the two rolls being
of V, form or approximately so. These rolls are suitably driven in either direction
as may be required, one being in a fixed or constant position, and the other
provided with means whereby it can be caused to approach or recede from the
other. In order that a plate when heated all around its edge may be properly
placed in position for being operated upon by the above described rolls, I provide
in front of them a suitable bed having a movable slide thereon. This slide is
furnished with a projecting pin or its equivalent to serve as an axis or centre of
motion for the plate to be operated upon, which for this purpose is perforated with
a central hole for the passage of the pin, or a special plate may be provided capable
of turning about a suitable axis or centre, and on which the plate to be flanged
shall be secured. When the plate to be operated upon is in position, its under
surface coincides with and rests upon one of the bevilled sides of the angular
periphery of the male V, roll, which determines the form of the internal angle of
the plate when flanged.
<
"
Means are provided for adjusting the position of the plate radially and in relation
to the rolls so as to give the required finished diameter to the plate when flanged.
The movable or female V, roll is caused to press upon the plate and to turn over
that part which is to form the flange and which projects beyond the periphery of
the male V, roll over the edge thereof, so that as the two rolls rotate with the plate
between them it is caused to rotate about its own axis on the movable slide on
which it is mounted, and is thus by the rolls turned over or flanged all round at
one operation. Plates of other than circular or segmental form may be flanged
by my improved machinery or apparatus by regulating the movement of said
movable slide (upon which such plate for the time being is mounted) either by
hand or by the action of a suitable "form" or cam corresponding with the
configuration of the plate under treatment. In addition to turning over the flange
as above referred to, I sometimes form the male V, roll so as to act on and
straighten or finish the edge of the newly turned over flange ready for use. In
some cases I provide additional rolls for straightening or finishing the edge of the
flange. These additional rolls are arranged as close as practicable to the before-
mentioned V, rolls, and are mounted in slides upon standards in suchwise that a
plate on rotating shall pass between them. These rolls are made adjustable on
their respective slides or standards so that one of a pair shall act on and straighten
or finish the edge of the newly formed flange, while the other acts on the plain
side and supports or backs up the plate.
Referring to the accompanying drawings wherein the same reference letters are
used to denote like parts wherever they occur. Fig. 1. is a general elevation, and

page_text: Fig. 2, is a general plan of a flanging machine or apparatus according to my
invention, Fig. 3. is a partial plan represented at an angle of forty five degrees
with the axes of the main or flanging rolls, and also shews the additional rolls for
straightening or finishing the edge of the newly turned over flange. Fig. 4. is an
elevation shewing a modification of main rolls, a, is the bed carrying the housings b,
and c.-and d, and e,- the housings b, and c, are for the connecting pinions f, and g,
that impart motion to the male and female V, or flanging rolls j, and k,-whilst d,
and e, are for carrying the axes h, and i, of these V, or flanging rolls j-k. The
lower or male V, roll occupies a constant position with its bevilled side or edge j³,
coinciding with the underside of the plate a¹, when placed in position for being
operated upon, the upper or female roll being raised for admitting said plate in
position between said rolls. The said upper roll is next lowered and presses that
part of the plate which overhangs the periphery of the male V, roll j, thus turning
over such part and commencing the flanging operation, after which the rolls, which
are fitted with a reversing movement are caused to revolve and by their action to
rotate the plate about its centre of motion (hereinafter referred to) during which
the turning over or flanging process is continued. l, and m, are the additional
rolls previously mentioned, placed in close proximity to the flanging rolls j,—k,
and between which the newly flanged plate passes, the roll or rolls, pressing on
and smoothing or finishing the edge of the flange, the roll or rolls m, in the
meantime presses on the plain side of the plate and counteracts (or backs up the
plate against) the pressure of the roll or rolls 1,-n, is a bed placed in front of the
Hanging rolls, the face of which is at an angle of forty five degrees with the axes
of the flanging rolls j-k. On this bed is mounted a movable slide o, actuated by
winch handles p, p, or otherwise, the worm.q, worm wheel r, shaft 8, and rack
pinion t, taking into a rack u, attached to the slide o. Other equivalent
mechanisin may be used for this movement. The slide o carries a revolving table v
having its centre of motion on the pin w, which projects on the upper surface of
said table and on which (being previously pierced at its centre) the plate under
treatment is mounted. The plate is also pierced in other places for admitting pins
or bolts such as x, x, which are provided with cotters or other convenient devices
for quickly securing said plate to the table v, previous to commencing the flanging
process. Fig. 4. shews in elevation, flanging rolls 11, and k¹, the roll 11, being
formed with a projection 111, by which the edge of the flange is finished at the
time of its formation, in which case the additional rolls l, m, above referred to may
be dispensed with. As previously referred to, other forms than circular may be
flanged by the above described apparatus, by subjecting the movement of the slide o,
to the government of a suitable "form ог 'cam," this however is not shewn in
the drawings.
"
1
Having now described the nature of the said invention and the manner of
carrying the same into practical effect, I would have it understood that what I
consider to be novel and original and therefore claim as secured to me by the
Letters Patent herein before first in part recited is
1, In a machine for flanging end plates of steam boilers and similar articles, a pair
of rolls, whereof one has in its periphery a V, groove, and the other is made
with a double bevil so that its periphery may run in the groove of the other
roll and that by the joint action of the two rolls a plate carried by an
adjustable support at an angle of forty five degrees to the axes of the said rolls,
may be flanged, substantially as hereinabove described and illustrated.
2, In a machine for flanging end plates of steam boilers and similar articles, a pair
of rolls whereof one has in its periphery a V, groove, and the other is made
with a double bevil and a projection, so that its periphery may run in the
groove of the other roll, and that by the joint action of the two rolls a plate
carried by an adjustable support at an angle of forty five degrees to the axes
of the said rolls may be flanged and the edge of the flange be finished at one
operation substantially as described and illustrated

page_text: In a machine for flanging end plates of steam boilers and similar articles the
combination of flanging rolls j, k, and finishing rolls l, m, for finishing the
edge of the newly formed flange, substantially as described and illustrated.
The improved machine for flanging end plates of steam boilers and similar
articles comprising flanging rolls j, k, means for driving the same, finishing
rolls l, m, a slide bed n, with slide o, means for adjusting the same, and a
table v, to receive and support a plate to be flanged, the whole constructed,
arranged and operating as hereinabove described and illustrated.
In Witness whereof, I, the said Samson Fox have bereunto set my hand and
al this twenty first day of February in the year of our Lord One thousand
ght hundred and eighty four.
itness to the signature of the said Samson Fox,
THO E. CRAVEN. C.E. Fellow Inst. Patent Agents
24 Victoria Chambers, Leeds.
SAMSON FOX (L.S.)