Improvements in or relating to Rolling Mills.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Rolling Mills.
[Communicated from abroad by JAMES THOMAS HASTINGS, of 667, Thirty-seventh
Street, Chicago, Illinois, United States of America, Mechanic.]
1 HENRY HARRIS LAKE of the firm of Haseltine, Lake & Co. Patent Agents
Southampton Buildings in the county of Middlesex 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 :-
In forming metal between rolls, whether in continuous or short lengths, regular
or irregular forms, the tendency is for the surplus metal to press out into the spaces
between the contiguous faces of the rolls, and thus form lateral flanges or
which are greatly injurious to the product and require great labor and expense to
remove.
:
fins "
The object of my invention is to overcome these objections and so construct a roll
that the "fin "may be severed from the article rolled or shaped into whatsoever formi
the latter may be made, all of which is hereinafter more particularly described.
In the accompanying drawing.
Figure 1, is a front view of a machine showing rolls for rolling continuous lengths
and of varying forms in cross-section.
Figure, 2, is a side view in detail of a pair of said rolls, showing the action
thereof upon a bar of metal.
Figure, 3, is a front view of a portion of a machine showing a modified form of
rolls constructed for the rolling of balls from a continuous bar.
Figure, 4, is a side view of said rolls partly in section.
Figure 5, is a detail view of a pair of rolls, one of which is shown in section, for
rolling irregular forms; and
Figure, 6, is a detail side view of a pair of rolls partly in section for cutting bars
into short lengths.
Like letters of reference indicate like parts in the different figures of the
drawing.
Upon
a, represents the frame within which the roll shafts b, c, are mounted.
the shaft is rigidly secured rolls d, d², d², d³, and upon the shaft c are secured in
like manner rolls e e¹ e² and e³ corresponding respectively in position, and con-
formatory to the rolls d d d² and d³, as clearly shown in Figure, 1. The grooves
or depressions in the rolls may be of any desired shape according to the form desired
to be rolled.
In the rolls de¹ the grooves are semi-circular, in de rectangular, while the roll d³
is plain and its counterpart is provided with a semi-circular groove for the
purpose of rolling half round bars. Each of said rolls, it will be observed, is
intended for rolling bars of an indefinite length. In order to sever the fin from the
bar I provide cutting edges upon each side of the groove in one of each pair of
rolls, representing the grooves or cavity regular or irregular, and
the cutting
edges. As the bar is passed into the rolls, that portion of the metal which is caused
to spread laterally is sheared by means of the cutting edges g, as shown in Figure, 2,
in which represents the metal bar, and h¹, the severed fin as it is cut from the
bar, thereby leaving the contour of the bar perfect in cross section.
y
The cutting portions of the rolls may be integral with the body or cutting rings
may be formed and secured by means of bolts g¹ to said rolls, as shown in
Figure, 1.
In Figures 3 and 4, I have shown rolls adapted to form balls from a bar of metal.
In this constrcution the cutting edge, g, extends entirely around the cup, socket, or
depression, f, and is, by preference, formed upon both rolls, which it is obvious, may
also be done unan athan Caning of soil-

page_text: In Figure 5, I have shown a further modification for rolling irregular forms, for
For this
example, as horse nails, and simultaneously cutting the fins therefrom.
purpose, the cutting edges are, preferably, formed upon a die only.
Figure, 6, shows a still further modification, in which cutting spurs, g², are formed
upon the roll, d, opposite which are formed openings, g³, in the roll, e, which are
gradually enlarged and carried laterally to the side surface of the roll, as shown. This
construction not only enables the lateral fins to be cut from the bars when rolled. but
severs the bars into regular lengths, the portions cut therefrom being allowed to drop
through the openings 93, as fast as they are severed from the bar.
I do not limit myself to any form of groove, die or cavity in the roll, it being
obvious that the form is immaterial so long as the cutting edge is employed upon
one or both of the rolls to sever the lateral fin from the metal passing between the
rolls and thus leave a product without formal blemish.
In order to prevent injury to the cutting edges of the rolls resulting from careless
adjustment, I provide guard rolls, jj Figures 1 and 5, which are of the same
diameter as and made concentric with, the rolls themselves, and which may be made
integral with the roll, or may be attached thereto by means of bolts or otherwise, as
shown in Figure, 1, or secured to the shafts, bc, independently of the rolls, as shown
in Figure, 5. Adjusting screws, kk, enable said guard-rolls to be brought into
peripheral contact with each other with any degree of force desired, thereby accurately
adjusting the cutting edges upon the respective rolls with reference to each other. As
the cutting edges become dull and require grinding, the guard-rolls should be treated
in like manner and reduced accordingly.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, as communicated to mo
by my foreign correspondent I declare that what I claim is :-
1. The combination of a pair of metal rolls in which one of said rolls has a cutting
edge adjacent to the groove or cavity formed therein and concentric with the axis of
the roll, substantially as shown and described.
2. A metal roll having depressions f, and adjacent cutting edges g, the latter being
concentric with the axis of the roll, substantially as shown and described.
3. In a metal rolling machine, substantially as shown and described, a metal roll
having a continuous knife edge adjacent to the matrix and concentric with the axis of
the roll.
4. The combination with metal forming rolls, having cutting edges adjacent to their
matrices, of guard-rolls concentric therewith and fitted to be brought into peripheral
contact with each other, substantially as shown and described.
5. The combination with metal forming rolls in which a cutting edge is formed
adjacent to the die matrix, of guard-rolls concentric with said forming rolls respec-
tively and arranged to be brought into peripheral contact with each other, and
means for adjusting the relative positions of the roller shafts, substantially as shown
and described.
Dated this 27th day of August 1889
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.