IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE OF CORRUGATED TUBES AND PLATES
Year: 1882

page_text: LETTERS PATENT to Samson Fox, of the Leeds Forge, New Wortley, Leeds,
"
in the County of York, Engineer and Ironmaster, for an Invention of
IMPROVEMENTS IN MACHINERY OR APPARATUS FOR THE MANUFACTURE OF
CORRUGATED TUBES AND PLATES."
'
PROVISIONAL SPECIFICATION left by the said Samson Fox at the Office
of the Commissioners of Patents on the 16th January 1882.
SAMSON Fox, of the Leeds Forge, New Wortley, Leeds, in the County of York,
Engineer and Ironmaster. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
THE MANUFACTURE OF CORRUGATED TUBES AND PLATES."
In the Specification of former Letters Patent granted to me, and dated the
30th day of June 1877 and numbered 2530, are fully described certain improve-
ments in and machinery or apparatus for the manufacture of corrugated tubes
and plates, to be used for the internal fire boxes, flues and shells of steam
boilers.
Now my present Invention has reference to further improvements in machinery
or apparatus for the manufacture of such beforementioned articles, and I may here
remark that I use similar rolls having corrugating annular grooves and projections
as those described in the former Specification above referred to, and both of which
are suitably driven.
My first improvement consists in the mode of mounting the upper roll. I still
mount or carry this roll as regards the number of bearings described in my former
Specification, namely, three, but in my present improved arrangement dispense
with the opening bearing for the journal at the end of said top roll, and which
journal I now carry in one of a pair of specially arranged housings, the middle
and the other end journals I carry in a sliding carriage or headstock, capable of
being moved endwise in either direction upon a fixed foundation plate or bed
suitably prepared for that purpose, the said endwise movement being effected by
hydraulic or other motor.
When the roll is in its working position that end of the aforesaid carriage

page_text: together with the middle bearing is embraced by one of the aforesaid housings
and which forms an additional support for the said middle bearings in all
directions.
Beyond the end journal first referred to, is a projecting part by which the upper
roll is driven by a suitable arrangement of coupling box or connection with the
motive power.
The bottom roll is carried in moveable bearings in the beforenamed housings,
in a similar manner to that described in my former Specification before referred to,
and,-
My second improvement consists in the combination of hydraulic and compound
toggle mechanism by which I cause the bottom roll to approach the first named
roll during the operation of corrugating a tube and to recede therefrom (after such
corrugating has been completed) such a distance as to permit that part of the tube
in contact with the periphery of the top roll to leave the same such a distance as
to allow of the free withdrawal of the said top roll endwise as above described,
when the corrugated tube may either be lifted or rolled away from between the
two housings.
My third improvement consists in the method of mounting a guide roll on each
side of the said main rolls, these guide rolls may be either plain or have corru-
gations corresponding with the main rolls. I prefer the latter form,-I cause the
said guide rolls to move up and down vertically (or they may deviate from the
vertical if desired) on suitable guides provided for the purpose, and by an arrange-
ment of hydraulic motor, or motors, and suitably arranged gearing eccentrics and
links, or by other suitable and equivalent means.
When it is required to place a plain tube in the machine for the purpose of
being corrugated, the carriage or headstock before mentioned together with the top
roll which it carries, is, by the mechanism above described moved endwise and out
of the end bearing in the first named housing and also out of the driving coupling
box, such a distance as to leave the space between the two housings perfectly clear
for the admission of a tube, which is placed between the said housings with its
axis in the same direction as that of the rolls, and rests upon the bottom main roll
which is in its lowest position, the two aforesaid guide rolls are now moved upward
so far as to steady the tube in its position. The top roll is next moved into the
tube, its end journal into the bearing into the first named housing and its driving
end into the coupling box beforementioned.
The machine being now set in motion and the process of corrugating commenced
by the bottom roll being caused to gradually approach the top and corresponding
main roll, in the meantime the two guide rolls are moved upward so as to bear
against and support the tube whilst under the corrugating operation and to cause
it to assume a comparatively true circular form.
As in the machinery described in my former Specification, plates may be
corrugated in this machine and further, by the aid of one or both of the said
guide rolls, they may be made to assume a curvilinear form in the direction of the
corrugations.
'

page_text: SPECIFICATION in pursuance of the conditions of the Letters. Patent filed by
the said Samson Fox in the Great Seal Patent Office c on the 14th July
1882.
SAMSON Fox, of the Leeds Forge, New Wortley, Leeds, in the County of York,
Engineer and Ironmaster. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
THE MANUFACTURE OF CORRUGATED TUBES AND PLATES."
In the Specification of former Letters Patent granted. to me the 30th day of
June 1877, No. 2530, is described a machine or apparatus for the manufacture of
corrugated tubes and plates (to be used for the internal fire boxes, flues and shells
of steam boilers) wherein corrugating is effected by the use in combination of two
corrugating rolls and two guide rolls, and my present improvements have reference
to this kind of machine, the rolls employed in my improved machine having
corrugated annular grooves and projections such as those described in the former
Specification above referred to, and both corrugating rolls being suitably driven.
One improvement has reference to the mode of mounting the upper roll,-I still
mount or carry this roll in the same number of bearings as described in my former
Specification, namely, three, but in my present improved arrangement I dispense
with the opening bearing for the journal at the end of the said top roll, and in lieu
thereof employ to carry or support the said journal one of a pair of specially
arranged housings, and the middle and the other end journals of the roll are
according to my present Invention carried in a sliding carriage or beadstock,
capable of being moved endwise in either direction upon a fixed foundation plate.
or bed suitably prepared for that purpose, the said endwise movement being effected
by hydraulic, or other motor.-When the roll is in its working position, that end
of the aforesaid carriage which contains and supports the middle journal bearing is
with the middle bearing itself embraced by one of the aforesaid housings which
thus forms an additional support for the said middle bearing in all directions.--
Beyond the end journal first referred to, is a projecting part by which the upper
roll is driven by a suitable arrangement of coupling box or connection with the
motive power, this driving of the upper roll takes place at the contrary end to that
described and shewn in my former Specification. The bottom roll is carried in
movable bearings in the beforenamed housings in a similar manner to that described
in my former Specification before referred to. Another part of my present
Invention relates to the use in combination of hydraulic and compound toggle
mechanism by, which I cause the bottom roll to approach the first named or upper
roll during the operation of corrugating a tube, and to recede therefrom (after such
corrugating has been completed), such a distance as to permit that part of the tube
in contact with the periphery of the top roll to leave the same such a distance as
to allow of the free withdrawal of the said top roll endwise as above described,
when the corrugated tube may either be lifted or rolled away from between the
two housings. Furthermore my Invention relates to the method of mounting on
each side of the said main rolls, a guide roll, which may be either plain or have
corrugations corresponding with those of the main rolls, I.cause the said guide rolls
to move up and down vertically (or they may deviate from the vertical if desired)
on suitable guides provided for the purpose, and by an arrangement of hydraulic
motor or motors, and suitably arranged gearing, eccentrics, and links, or by other
suitable and equivalent means. When it is required to place a plain tube in the
machine for the purpose of being corrugated, the carriage or headstock before-
mentioned, together with the top roll which it carries, is, by the mechanism above
described, moved endwise and out of the end bearing in the first named housing,
and also out of the driving coupling box, such a distance. as to leave the space
between the two housings perfectly clear for the admission of a tube, which is
placed between the said housings with its axis in the same direction as that of the
rolls, and rests upon the bottom main roll, which is in its lowest position, the two

page_text: aforesaid guide rolls are now moved upward so far as to steady the tube in its
position. The top roll is next moved into the tube, its end journal into the bearing
in the first named housing and its driving end into the coupling box before
mentioned. The machine being now set in motion and the process of corrugating
commenced by the bottom roll being caused to gradually approach the top and
corresponding main roll, in the mean-time the two guide rolls are moved upwards
so as to bear against and support the tube whilst under the corrugating operation
and to cause it to assume a comparatively true circular form.
As in the machinery described in my former Specification, plates may be
corrugated in this machine, and further, by the aid of one or both of the said guide
rolls, they may be made to assume a curvilinear form in the direction of the
corrugations.
In the accompanying three Sheets of Drawings the same letters refer to the
same or like parts wherever they occur. Fig. 1, Sheet 1, is a front elevation of an
improved corrugating mill according to my Invention. Fig. 2, Sheet 2, is a plan.
Fig. 3. is an enlarged sectional plan of a part of Fig. 2.-Fig. 4, Sheet 3, is an elevation
at the driving end, and Fig. 5, is a sectional elevation on the line 1. 1. of Figs. 1,
and 2.-A, is the bed of the machine, B, and C, are the housings mounted thereon;
D, is the top corrugated or grooved roll, E, the bottom corrugated or grooved roll,
the projections and grooves of the two rolls are so relatively arranged that they
mesh with each other.-The end journal D 1, of the top roll D, takes its bearing
at D 2, in the housing B.-On the outside of this journal is the pojecting end D 3.
by which it is driven and which takes into a driving coupling box provided for the
purpose. The middle journal D 4, and the other end journal D 5, take respectively
into the bearings F, and G, in the carriage or headstock H, which is mounted on
the bed I, in such wise that it is capable of sliding endwise thereon (carrying the
said top roll D, therewith) backward and forward by hydraulic power, J, being the
hydraulic cylinder attached to the underside of said headstock H, and shewn to an
enlarged scale in Fig. 3, Sheet 2.-K, is the piston or ram within the said cylinder
and fixed in position by the hollow piston rods or pipes L, and M, attached to the
crossbead N, at the end of the bed I, the rod or pipe L, supplies water under
pressure to one end of the cylinder J, and the rod or pipe M, to the contrary end
thereof, such supply of water being regulated as required by distribution valves
provided for the purpose.
The rolls D, and E, are, except as to distance apart, shewn in their working
position, and with that end of the carriage or headstock H, in which is the middle
bearing F, of the top roll D, within and firmly embraced and supported in all
directions by the housing C,-The bottom roll E, is carried by the vertically move-
able bearings O, and P, in the housings B, and C, which bearings are moved
upwards and cause the said roll E, to approach the top roll D, during the process
of corrugating a tube, said bearings being actuated by a compound toggle arrange-
ment consisting of the toggles Q, Q', and R, R', (two to each of the said bearings)
and the horizontal toggle bar S, this bar S, (whilst corrugating) is moved forward by
means of the hydraulic ram T, within the cylinder U, and after the corrugating of a
tube has been completed, the said bar S, is moved backward by a similar but smaller
ram V, in the cylinder W, placed at the contrary end of the bar S, water or other
fluid under pressure being supplied to the said cylinders as required. The lower
toggles Q, and R, are carried in bearings X, and Y, respectively, in the lower part
of the aforesaid housings B, and C.-Z, Z, are guide rolls, one on each side of the
main rolls D, and E, these guide rolls I prefer to form either wholly or partially
with corrugations around their peripheries corresponding with those of the main
rolls, so as to bear against the corrugated projections which are being formed on
the tube under operation, and in such a manner as not to injure or distort such
corrugations. These guide rolls each of which is mounted in bearings in a kind of
headstock A 1. and BI. and is capable of being moved up and down in the guides
C1, C1, and C2, C2, are for the purpose of steadying a tube and for ensuring its
taking a comparatively true circular form whilst under operation, these guide rolls

page_text: are actuated by hydraulic motors E 2, Figs 1, and 5, the train of gearing F 1, G 1,
H1, and I 1. eccentrics J 1. and links K 1. connected to the aforesaid headstocks
A 1. and B1. two to each headstock. The motors, gearing, eccentrics and links
just described are, as will be seen, carried by the framework L 1. attached to the
lower parts of the housings B, and C.
Having 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 corrugating machine of the kind above referred to, providing for endwise
movement of one corrugating roll to admit of placing a tube in the machine and
removing it therefrom by the use in conjunction with a fixed or stationary bearing
such as D 2, wherein one journal of that roll is supported when in working position,
of two other bearings such as F, and G, wherein the other journals of the roll are
mounted and which are carried on a sliding carriage or headstock such as H,
substantially as described.
2. In a corrugating machine of the kind above referred to, the use in com-
bination of a sliding carriage or headstock whereon two journals of one corrugating
roll are mounted, and hydraulic apparatus for operating such carriage or headstock
in such a manner as to withdraw the said roll from a fixed or stationary end
bearing and afterwards return it thereto substantially as and for the purposes above
set forth.
3. In a corrugating machine of the kind above referred to, the method of adjusting
the bottom corrugating roll E, in relation to the upper roll D, by the use in com-
bination of moveable bearings O, and P, compound or double toggle mechanism, a
horizontal toggle bar S, between the said double toggles for simultaneously moving
the bearings, and means for moving the said bar S, in a forward direction (whilst
corrugating a tube) and in a backward direction for the recession of the bottom
roll E, from the top roll D, substantially as and for the purposes described and set.
forth.
4. In a corrugating machine of the kind above referred to, the method of
actuating the carriages or headstocks A 1. and B 1. in which the guide rolls Z, Z,
are mounted (one on each side of the main or corrugating rolls) by the use in com-
bination therewith of hydraulic motors E 2; gearing F 1, G1, H1, and I1,
eccentrics J1, and links K 1. substantially as and for the purposes hereinbefore
described.
5. The combination of parts constituting the improved corrugating machine,
constructed, arranged and operating as shewn in and described with reference to
Figs. 1, 2, 3, 4 and 5, inclusive of the accompanying Drawings.
In witness whereof, I, the said Samson Fox, have hereunto set my hand
and seal this Tenth day of July, in the year of our Lord One thousand
eight hundred and eighty two.
Witness to the signature of the
said Samson Fox,
THO. E. CRAVEN, C.E.
Patent Agent
24 Victoria Chambers.
1
South Parade
Leeds.
SAMSON FOX. (L.S.)