IMPROVEMENTS IN MACHINERY FOR ROLLING IRON OR OTHER METAL
Year: 1873

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, Doctor of Laws, for the,
Invention of "IMPROVEMENTS IN MACHINERY FOR ROLLING IRON OR OTHER
METAL." A communication from abroad by Charles Henry Perkins,
of Providence, Rhode Island, United States of America.
Sealed the 7th March 1873, and dated the 11th January 1873.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and Decla-
ration, on the 11th January 1873, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton Build-
ings, London, Doctor of Laws, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
MACHINERY FOR ROLLING IRON OR OTHER METAL," and have petitioned Her
Majesty to grant unto me, my executors, administrators, and assigns,

page_text: Her Royal Letters Patent for the same, and have made solemn
Declaration that it has been communicated to me from abroad by
Charles Henry Perkins, of Providence, Rhode Island, United States of
America.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of the said Invention, and in what
manner the same is to be performed in and by the following statement,
reference being had to the accompanying Drawing forming a part of
this Specification.
The first division of this Invention relates to means for reversing or
turning the bar the bottom side up, while passing from one pair of rolls
to the next pair, so that what was first the upper or fin side of the bar
in passing between the first pair may become the lower side of it in
passing between the next pair, whereby, the fins are by the rolling
operation removed.
This part of the said Invention is illustrated in the first six Figures
of the Drawing in which Figure 1 is a front elevation; Figure 2 an
end view; and Figure 3 a vertical and transverse section of three pairs
of reducing rolls with their supports and operative mechanism.
The said Invention is shown as applied to rolls of the kind used for
rolling iron into flat bars either square or rectangular in transverse
section, the upper roll of each pair being extended within its fellow roll
in the manner shown.
It is well understood that in rolling a bar by rolls of the kind herein
described and shewn, there will be what are termed fins raised on its
upper surface at its opposite edges, such fins being due to the pressure
on the metal between the continuous vertical edges of the reducing
parts of the rolls.
In carrying this part of the said Invention into practice there is com-
bined with each pair of the reducing rolls and the next succeeding pair
a guide passage or tube in the form of a semicircular arc or nearly so.
The said passage or tube may be termed the "reversing guide," the
same being herein-after more particularly explained.
A denotes the frame for supporting the several pairs B, B', C, C¹,
D, D', of rolls which are arranged relatively to one another and

page_text: "
The
provided with suitable operative mechanism all as represented.
reversing guides are exhibited at E, E¹, one being extended from the
bite of the lowermost pair of rolls B, B', to that of the next rolls C, Ci;
The other reversing guide E¹, arranged on the opposite side of the
machine extends from the bite of the rolls C, C₁, to that of the
rolls D, D', all being as represented.
Figures 4 and 5 are views of the two sections or parts of each of the
inside reversing guides. Figure 6 is a transverse section of such two
parts taken through their supports. One of the parts is fastened directly
to the frame, and the other is secured to the fellow part by keys k,
passing through studs 1, projected from the supporting ears m of the
stationary part, and also through those n of the movable part, all being
as shown in the Drawing.
"
When two reversing guides are arranged with three pairs of rolls in
the manner shown they form a serpentine passage leading from the first
to the second pair and from the latter to the third pair, whereby a bar
of iron will be guided from the first pair to the second, and turned over
in the meantime, and next will be guided from the second pair of
rolls to the third pair, and be turned over while passing from the said
second to the said third pair. The arrangement of the three pairs of
rolls, and the two reversing guides saves the employment of a fourth
pair of rolls, which would or might otherwise be necessary, provided
the two guides were disposed in separate frames with a pair of rolls to
each.
The second part of the said Invention is shewn in Figures 7 to 14 of
the Drawing, in which Figure 7 is a top view, Figure 8 is a side eleva-
tion, Figure 9 a rear end view, and Figure 10 a longitudinal section,
through the rolls of a rolling mill or machine provided with this
Invention.
In constructing the rotary mill shown in these Figures there is
combined with each pair of rolls and that next succeeding it what is
termed a twisting guide, it consists mainly of a helical channel, or a tube
having a helical bore, by which the bar of iron while passing from one
pair of rolls to the next succeeding pair will not only be guided thereto,
but twisted one quarter of a circle, more or less, as occasion may require,
the same causing the iron to be rolled to better advantage than would
be the case were it run from one pair of rolls to the next without having
any such twist.

page_text: These Figures of the Drawing exhibit a rolling machine provided with
three pairs of horizontal reducing rolls A, A', B, B¹, and C, C¹, arranged
as shewn and having their shafts a, 'a¹, b, b, c, c', supported in suitable
boxes or bearings sustained by a series of standards D, erected on a bed
plate E. The shaft of each roll is coupled with another shaft which
is geared to its fellow, each lower shaft being provided with a driving.
wheel as shewn at E, F, and G. The mechanism of each pair of rolls
in advance of the first pair is to be so constructed as when in operation.
to impart to the said rolls a velocity greater than that of the next pre-
ceding pair, in order that the extension lengthwise of the bar by the
latter pair may take place without hindrance. The twisting guides are
shewn at H one being made precisely like the other, and each being
extended between the "bits" of two next adjacent pairs of rolls.
Figures 11 and 12 are opposite end views of the twisting guide H,
Figure 13 being a horizontal longitudinal section, and Figure 14 a top
view of the same. Its cap or upper half is to be constructed in three
or any other suitable number of sections d, e, f. The middle part e is
furnished with ears 9 and h projecting from it as shown, those marked h
being extended over and upon the portions d, f, and provided with
tenons i, i, to enter mortises k, made in the said parts d, f. The lower
half of the twisting guide is supported by a standard K, from which
projections extend up through ears 9 and receive keys m, the same
serving to secure the cap down upon the lower half of the guide. So
constructing and supporting the cap allows it to be readily applied to the
two pairs of rolls and its fellow half, or removed therefrom as circum-
stances may require, it saves all necessity of moving the housings, and
upper
rolls in order to get the cap off its fellow half of the guide, all of
which would be necessary were the cap in a single piece, because owing
to the rolls projecting over it at its ends it could not be either removed
from or applied to its fellow portion without first removing the rolls
and their housings. The longitudinal passage through the guide is
represented as having what is called a quarter twist, that is to say,
it turns from end to end ninety degrees of a circle, maintaining through-
out the same area of transverse section.

page_text: First. The combination and arrangement of the two reversing
guide E, E', with the three pairs of rolls B, B¹, C, C', and D, D',
operating substantially in the manner described.
all
Second. In a rolling mill provided with two or more pairs of rolls,
and one or more twisting guides arranged therewith as shown and
described, making the cap of each of said guides in sections, and disposed
with reference to the upper rolls as specified.
In witness whereof, I, the said George Haseltine, have hereunto
set my hand and seal, this Eleventh day of January, in the
year of our Lord One thousand eight hundred and seventy-three.
Witness,
W. J. LowE.
GEORGE HASELTINE. (L.S.)