IMPROVEMENTS IN ROLLING HOOP IRON AND IN THE MACHINERY USED for THAT PURPOSE
Year: 1876

page_text: LETTERS PATENT to Henry Jones and Ellis Cook, both of the South Yorkshire
Hoop Iron Works, Rotherham, in the County of York, for the Invention of
"IMPROVEMENTS IN ROLLING HOOP IRON AND IN THE MACHINERY USED for
THAT PURPOSE."
Sealed the 27th February 1877, and dated the 11th September 1876.
PROVISIONAL SPECIFICATION left by the said Henry Jones and Ellis
Cook at the Office of the Cominissioners of Patents on the 11th September
1876.
HENRY JONES and ELLIS COOK, both of the South Yorkshire Hoop Iron Works,
Rotherham, in the County of York. "IMPROVEMENTS IN ROLLING HOOP IRON AND
IN THE MACHINERY USED FOR THAT PURPOSE."
The objects of this Invention are principally the production of a superior finish
and improved quality of hoop Iron, and also a saving of labour in the manufacture
of the saine
In carrying out this Invention in order to effect these objects we fix a pair of
rolls at the back of the ordinary set of "strand" or grooved rolls, and evolving in
the same direction as the middle and bottom strand rolls, with which they
correspond in height. A guide is fixed from the back of the first pair of rolls, and
passes between the middle and bottom strand rolls, curving round and upwards to
the front or entrance of the top and middle rolls The rolls of the first pair are
speeded to suit the draw of the iron in passing through the top and middle strand
rolls, so as to avoid forming a large loop of the ion between the two pairs of rolls.
The operation is performed in the following manner.-The iron on passing
through the first pair of rolls is forced along the guide through the groove under-
neath the middle strand roll, and following the shape or curve of the guide is
directed upwards to the proper groove between the top and middle strand rolls,
thus dispensing with the services of a "turnover," and finishing the iron in a much
hotter state than is possible by the present slower process.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Jones and Ellis Cook in the Great Seal Patent Office on the
9th March 1877.
HENRY JONES and ELLIS COOK, both of the South Yorkshire Hoop Iron Works,
Rotherham, in the County of York "IMPROVEMENTS IN ROLLING HOOP IRON AND
IN THE MACHINERY USED FOR THAT PURPOSE."
Our said Invention has for its object,―
First. The production of hoop iron of a superior finish both on the flat and edge,
this result being attained by the iron being rolled in much less time than by the
ordinary process, consequently the iron is in a hotter state while passing through
the rolls and not so liable to crack at the edges, the proportion of waste being
thereby moreover very considerably reduced.
Secondly. Reducing the cost of manufacture by dispensing with a laborer or
"turner over
"
Thirdly. Obtaining an increased production of hoop iron for a given amount of
fuel used in the heating furnaces.
In carrying out our Invention in order to effect these objects we fix at the back
of the ordinary set of "strand" or grooved rolls an extra pair of grooved rolls
driven by any suitable arrangement, and evolving in the same direction as the
middle and bottom strand rolls, with which they correspond or nearly so in height.
From the back of this supplementary pair of rolls there is fixed a guide of suitable
shape and dimensions, which passes between the middle and bottom rolls of the
strand rolls, curving round and upwards towards the front or entrance of the top
and middle rolls. The supplementary rolls are spoeded to suit the diaw of the iron
in passing through the top and middle strand rolls, so as to avoid forming a loop of
the iron between the two pairs of rolls, and to obviate the liability of stretching and
breaking the iron to which the operation would be subject if the various rolls were
driven at disproportionate speeds.
And in order that our said Invention may be fully understood we shall now
proceed more particularly to describe the same, and for that purpose' shall refer to
the several Figures on the annexed Sheet of Drawings, the saine letters of reference
indicating corresponding parts in all the Figures.
Figure 1 of our Drawings represents a side elevation of a rolling mill constructed
in accordance with our Invention; and Figure 2 is an elevation of the same at right
angles to Figure 1, the view being taken at the end at which the strand rolls are
situate and the guide shewn in section.
Figure 3 represents a perspective view of the guide complete, the said guido
being constructed in two parts, and Figures 4 and 5 represent respectively perspec-
tive views of the two parts of which the guide is composed.
a, a, a, are the strand rolls, which are mounted in bearings in housings or
standards 6 carried on a base plate c in any ordinary or well-known manner, and
are provided with all usual or suitable appliances for adjusting the position and
pressure of the rolls and for imparting motion thereto. At the roar of the rolls a.
a², a³, we fix the supplementary pair of grooved 1olls d, d, mounted in housings or
standards e, which may also be carried on the base plate c or otherwise, such
supplementary rolls being also provided with the usual facilities for receiving motion
and other ordinary appliances, and being driven in the same direction as the strand
rolls a³, a², and at the requisite relative speed
Between the rolls d, d, and the rolls a³, a², there is fixed the guide f (shewn in
detail in Figures 3, 4, and 5), which consists of two parts, videlicet, a body 1
(Figure 4) and a cover 2 (Figure 5) connected together so as to form a covered
channel fi, as shewn in Figure 3, by bolts 3, lugs 4 being provided for the purpose
of maintaining the cover in its place.
In Figure 1 the guide fis shewn in working position, it being supported at one
end on an attachment g of the frame e, whilst its opposite end at 5 is connected to

page_text: the frame b by a bolt and nut h, passing through bars 2, 2, having their ends secured
in slots k in the said frame b. The bottom strand roll a² is made of a reduced
diameter at 1, as shewn in Figure 2, so as to provide space for the insertion of the
guide f, the portion at m being however left of the full dimensions for operating
upon the iron between it and the corresponding portion m² of the roll a¹ after the
bar has been passed once through the mill.
•
The operations are carried out in the following manner.-The machine having
been started so as to cause the rolls to revolve in the direction indicated by the
arrows, a bar of iron of suitable dimensions is passed into the rolls d, d, which
reduce it in size and force it forwards along and through the channel f¹ of the guido
finto one of the grooves of the strand roll a². The guide is curved at n to suit the
shape and circumference of the roll a', and this curved portion of the guido serves
to retain the iron in the groove of the roll for a sufficient distance to enable it to
enter between the top roll a and the middle roll a³, the operation being performed
without the aid of manual labor
The band or strip of iron which is thus being operated upon simultaneously by
the rolls d, d, and the rolls a, a¹, passes from the rolls a, a¹, into an ordinary
receiving trough or slide, and as soon as the end of the band or strip emerges from
the rolls it is seized by the attendant and passed through the rolls a' and a between
the ungrooved portion m¹ of the former and the corresponding portion m of the
latter, after which the band or strip is finished by being subjected to the action of
the ordinary finishing rolls and a scraper, as is well understood.
It is obvious that although we have shewn and described the strand rolls as
consisting of three rolls superposed, two only may be used if preferred, the lower
roll a² being in that case dispensed with.
Having now described and particularly ascertained the nature of our said Inven-
tion, and the manner in which the same is or may be used or carried into effect, we
would observe, in conclusion, that what we consider to be novel and original, and
therefore claim as the Invention secured to us by the herein-before in part recited
Letters Patent 18,-
First. The employment in combination with the strand rolls of a supplementary
set of rolls, arranged and operating substantially in the manner and for the purpose
herein-before described
'
Secondly. The combination with the strand" rolls and the supplementary set of
rolls of a guide for the iron in its passage from such supplementary rolls to the
strand rolls, substantially as herein-before described
Thirdly. The system or mode of rolling hoop iron by causing a bar of iron to be
first operated upon by a supplementary set of rolls, and then to be fed forward by
the latter and conducted by a guide automatically beneath and partially round one
of the strand rolls, and thence between such roll and another superposed sti and roll
whilst the bar continues to be operated upon by the supplementary rolls, substan-
tially as herein-before described.
In witness whereof, I, the said Ellis Cook, on behalf of myself, and the said
Henry Jones, have to this our Specification set my hand and seal, this Fifth