Improvements in the Manufacture of Corrugated Metal Sheets, and in Means to be Employed in connection therewith.
Year: 1894

page_text: Date of Application, 20th June, 1891
Complete Specification Left, 20th Mar., 1895-Accepted, 13th Apr., 1895
Improvements in the Manufacture of Corrugated Metal Sheets, and
in Means to be Employed in connection therewith.
I, WILLIAM GEORGE CAUSER, of Booth Street, Handsworth, near the City
of Birmingham, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved method of producing corrugated metal
sheets or plates and to the apparatus or means to be employed in connection with
the said production.
Corrugated sheets or plates manufactured according to my invention may be of
various configurations in cross section.
To produce corrugated sheets or plates according to my invention I pass them
between rollers or revolving dies, whose peripheries are shaped to suit the
particular form of corrugation desired. The dies may be arranged to give the
complete form of an individual corrugation at one impression, or by a series,
according to the character of the corrugation required or nature of the material
to be operated upon.
The novelty of the invention consists primarily in the employment of rollers or
revolving dies, for continuously shaping the corrugations, and so arranged that the
metal required to form each corrugation is free to conform to the direction required
when passing between the dies for the purpose of corrugation. Thus undue friction
between the material and dies is avoided and consequent tendency to rupture the
sheet reduced to a minimum.
The sheet of metal to be corrugated having been put in at the feeding end of the
machine, the process of corrugation is continuous until the sheet is delivered
complete and finished at the other or delivery end of the machine, thus effecting a
great saving in time and labour as compared with the present system of
manufacturing this class of material.
I
In constructing a corrugating machine according to one form of my invention
may proceed as follows. Within suitable frame work provided with bearings
and necessary adjuncts, a series of pairs of rolls, having corrugated surfaces, are
arranged with their axes horizontal and parallel to each other. The axes of the
lower tier of rolls are in one plane whilst those of the upper tier are in a plane
parallel to it but at a suitable distance apart. These rolls are connected by
suitable gearing and revolve in unison so that their resultant line of force is in one
direction. Attached to the frame work at each end, or otherwise conveniently
fixed, are tables for the reception and delivery of the work to and from the
machine. The plain plate to be corrugated, having been deposited upon the
receiving table of the machine, is conveniently adjusted and urged forward
(mechanically or otherwise) until it engages with the first pair of corrugating rolls.
These I prefer shall impress only one corrugation say down the middle of the
sheet (this will probably be found most convenient generally, although it is not
material to the effective working of the machine or dies whether the first corru-
gation be put in the middle or nearer the edge of the sheet). The next piir,
which are set back horizontally from the said preceding rolls, will impress
corrugations adjacent to the first one and on either side of it, whilst the third pair
of rolls, which are also set back horizontally, will impress corrugations adjacent to
those formed by the preceding pair, and so on, until the requisite number of

page_text: corrugations have been made in the sheet when it is delivered complete and
finished from the machine. It will be observed that all through the process, the
portion of the sheet to be operated upon by the corrugating rollers is free to move
in the direction of the corrugation and readily adjusts itself to the configuration of
the surfaces of the rolls with which it is brought into contact, and as the number
of corrugations increase pou each pair of rolls from the first pair onwards, the
plate has only to pass between a sufficient umber of pairs of rolls to corrugate its
entire width whatever that may be, whilst the length may be anything that can be
reasonably dealt with, not being in any way restricted by the machine. When
finishing the corrugation of a plate I prefer to pass it between one or more pairs
of rolls whose circumferential velocity is greater than that of the preceding ines
for the purpose of stretching and so straightening the plate longitudinally. Also,
when it is desirable to give the plate a curvilinear form in the longitudinal
direction of the corrugations, I do so by adjustable rollers provided for the purpose
nt the delivery end of the machine, thus I produce corrugated plates, straight or
circular as may be desired, at one operation. In constructing rolling dies for
corrugating according to my invention, the die and axle may be in one piece, or
the portion forming the dies may be in one or more pieces threaded on to the axle
and suitably secured thereto.
I wish it to be understood that I do not limit myself to the exact form of
machine hereindescribed, as the rollers or revolving dies may be mounted differently,
according to the character of the work to be performed, without departing from the
nature of my invention.
Dated this 19th day of June 1894.
WILLIAM GEORGE CAUSER,
By Henry Skerrett,
Agent for Applicant.
Improvements in the Manufacture of Corrugated Metal Sheets, and
in Means to be Employed in connection therewith.
I, WILLIAM GEORGE CAUSER of Booth Street, Handsworth, near the City of
Birmingham, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to an improved method of producing corrugated metal
sheets or plates and to the apparatus or means to be employed in connection with
the said production.
"
Corrugated sheets or plates manufactured according to my invention may be of
various configurations in cross section.
To produce corrugated sheets or plates recording to my invention I pass them
between rollers or revolving dies, whose peripheries are shaped to suit the particular
form of corrugation desired. The dies may be arranged to give the complete
form of an individual corrugation at one impression or by a series, according to
the character of the corrugation required or nature of the material to be
operated upon.
The novelty of the invention consists primarily in the employment of rollers or
revolving dies, for continuously shaping the corrugations and so arranged that the
metal required to form each corrugation is free to conform to the direction
required when passing between the dies for the purpose of corrugation. Thus
undue friction between the material and dies is avoided and consequent tendency to
rupture the sheets reduced to a minimum.
The sheet of metal to be corrugated having been put in at the feeding end of
the machine, the process of corrugation is continuous until the sheet is delivered

page_text: complete and finished at the other or delivery end of the machine thus effecting a
great saving in time and labour as compared with the present system of manu-
facturing this class of material.
In constructing a corrugating machine according to one form of my invention
I may proceed as follows. Within suitable frame work provided with bearings
and necessary adjuncts a series of pairs of rolls, having corrugated surfaces, are
arranged with their axes horizontal and parallel to each other. The axes of the
lower tier of rolls are in one plane whilst those of the upper tier are in a plane
parallel to it but at a suitable distance apart. These rolls are connected by
suitable gearing and revolve in unison so that their resultant line of force is in one
direction. Attached to the frame work at each end, or otherwise couveniently
fixed, are tables for the reception and delivery of the work to and from the
machine. The plain plate to be corrugated, having been deposited upon the
receiving table of the machine is conveniently adjusted and urged forward
(mechanically or otherwise) until it engages with the first pair of corrugating rolls.
These I prefer shall impress only one corrugation say down the middle of the sheet
(this will probably be found most convenient generally, although it is not material
to the effective working of the machine or dies whether the first corrugation be
put in the middle or nearer the edge of the sheet). The next pair, which are set
back horizontally from the said preceding rolls, will impress corrugations adjacent
to the first one and on either side of it, whilst the third pair of rolls, which are
also set back horizontally, will impress corrugations adjacent to those formed by
the preceding pair, and so on, until the requisite number of corrugations have been
made in the sheet, when it is delivered complete and finished from the machine.
It will be observed that all through the process, the portion of the sheet to be
operated upon by the corrugating rollers is free to move in the direction
of the corrugation and readily adjusts itself to the configuration of the
surfaces of the rolls with which it is brought into contact, and as the number of
corrugations increase upon each pair of rolls from the first pair onwards, the
plate has only to pass between a suflicient number of pairs of rolls to corrugate its
entire width, whatever that may be, whilst the length may be anything that can
be reasonably dealt with, not being in any way restricted by the machine. When
finishing the corrugation of a plate I prefer to pass it between one or more pairs
of rolls whose circumferential velocity is greater than that of the preceding ones
for the purpose of stretching and so straightening the plate longitudinally. Also
when it is desirable to give the plate a curvilinear form in the longitudinal direction
of the corrugations I do so by adjustable roller or rollers provided for the purpose
at the delivery end of the machine. Thus produce corrugated plates straight or
curvilinear, as may be desired at one operation.
In constructing rolling dies for corrugating according to my invention the die
and axle may be in one piece or the portion forming the dies may be in one or more
pieces threaded on to the axle and suitably secured thereto.
I wish it to be understood that I do not limit myself to the exact form of
machine herein described, as the rollors or revolving dies may be mounted
differently, according to the character of the work to be performed, without
departing from the nature of my invention.
Figures 1 and 2 of the accompanying drawings represent respectively a side
elevation and plan of a machine for corrugating metal sheets in accordance with
my invention.
Figure 3 is a side elevation of a roller or revolving die designed to make the
same corrugation as those shown in Figure 2 but differently constructed in respect
to that portion which produces and regulates the corrugation upon the surface of
the sheet in its passage between them.
Figure 4 is a side elevation (partly in longitudinal section) of a revolving die of
similar external configuration to that shown in Figure 3 but differing therefrom
in construction. It consists of a central shaft upon which separate metal rings
of suitable shape for producing the required corrugation are threaded and secured
by a screwed collar or its equivalent.

page_text: Figure 5 is a side elevation of an arrangement of detached worm and wheel
gearing for driving the corrugating rolls or revolving dies.
Figure 6 is a plan showing one method of connecting a set of revolving dies or
corrugating rollers with the said gear for the purpose of driving same.
'²
:
The same letters of reference indicate corresponding parts in Figures 1 to 5.
Referring to Figures 1 and 2 a, a, are the side frames or housings braced and
stayed at suitable intervals by the distance pieces b, b. c', c, e c', are the upper
rollers or revolving dies and d, 2, 3, 4, are the lower ones. e is the curving roll
the use and application of which will be hereinafter described. ",
are
pinions, attached to the top rollers d',
are pinions attached
to the lower rollers and gearing into the pinions are horizontal
shafts carried in suitable bearings in the side frames and having gear wheels i, i,
jj, attached thereto. The wheels, take into pinions g' and ', and g³ and g*,
respectively whilst the wheels, take into and receive motion from the wheels k
on the driving shaft 7. m, mare screws for the adjustment of the rolls.
o and
pare respectively tables for the reception and delivery the sheets operated upon.
are guides for adjusting the sheet prior to its entry between the rolling dies e.
The spindle r is constructed so as to be conveniently revolved by means of a
handle or an equivalent device and is provided with worms at r, s, which take into
the worm wheels (,, and by revolving round the screws an cause them and the
axle boxes e into which they are connected to rise or fall and so adjust the height
of the curving roller e
A similar arrangement of roller neting in the opposite direction to e may be
provided if desired, although this is not shown in the drawing.
Figure 3 represents a form of roller die in which the outside portions or outer
peripheries e, only are curved, to correspond to the corrugations the intermediate
sunk portions c, being plain grooves having flat instead of curved bottoms.
Figure 4 is a roller die whose external configuration corresponds to that of
Figure 3 but composed of a series of rings c", c, threaded on and suitably secured
to a central shaft as clearly indicated in the drawing.
Referring to Figure 5 ie is a standard or standards, having conveniently
arranged bearings for carrying the pinions (1º, and¨g', g², g², 9', 9³
which are actuated by the continuous screw shaft driven by the pulley y. The
projecting arbors of these pinions are formed of square or other sections for
convenient connection by aid of the coupling, with the roller dies c and d.
C
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. Machinery for corrugating sheet metal, consisting of a series of pairs of
shaping rolling dies or corrugating rollers, acting in unison and in regular pro-
gressive succession upon the sheet undor operation, both laterally and longitudinally,
substantially as and for the purpose as described and set forth.
Secondly. In roller corrugating machinery employing at the delivery end
thereof, a rising and falling "curving" roller or rollers whereby either straight or
curvilinear corrugated sheets may be delivered from the one machine, substantially
as described and set forth.
Thirdly. The improvements in the machinery for, and in the method of,
corrugating sheet metal, substantially as described and set forth.
Dated this 19th day of March 1895.
WILLIAM GEORGE CAUSER,
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.