An Improved Coupling Box for Rolling Mills.
Year: 1889

page_text: Date of Application, 29th Mar., 1889
Complete Specification Left. 28th Dec., 1889-Accepted, 1st Feb., 1890
PROVISIONAL SPECIFICATION.
An Improved Coupling Box for Rolling Mills.
1. VALENTINE SHERVEY of 10 Greyhound Terrace, Sebastopol, near Newport in the
county of Monmouth, roll turner, do hereby declare the nature of this invention to
be as follows:-
The improved coupling box for rolling mills in which this invention consists is
employed for coupling the rolls in a train or row of mills, as is well understood. As
heretofore made, such coupling boxes are cast with a smooth bearing from end to end
for reception of the "wobble" of the roll and the coupling spindle. In course of time
the end of the wobble cuts into the coupling box, especially when the mills are out of
line and forms an inclined bed therein. The effect of this is that the wobble exerts a
strain longitudinally tending to thrust itself out of the coupling box. This strain is
transmitted throughout the roll and the end of the body of the roll is driven hard
against the brass in the standard. Moreover, the wobble is sometimes twisted or
broken off by the torsional strain. Similarly, the coupling spindle acts upon the
coupling box at the other end thereof.
Now this invention consists in providing in the coupling box an annular recess or
groove which extends around the interior thereof. The end of the wobble and of
the spindle project. beyond the edges of the groove where, not resting on the coupling
box, they do not cut into the same. Consequently, the inclined bearing aforesaid
is not formed and the longitudinal thrust is not set up. Coupling boxes provided, in
accordance with this invention, with an internal groove are much more durable than
those hitherto in use.
301
Ր
1000
NICHOLAS WATTS,
Applicant's Agent.
COMPLETE SPECIFICATION.
An Improved Coupling Box for Rolling Mills.
I, VALENTINE SHERVEY, of 10 Greyhound Terrace, Sebastopol, near Newport, in
the county of Monmouth, roll turner, 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 coupling boxes employed in rolling mills for rolling metals
and other materials. Such coupling boxes are used for connecting the rolls with
the driving power and with each other in a train or row of rolling mills.
This invention consists in providing an annular groove or recess in the interior of
coupling boxes where the connecting spindle and the wobbler of the roll approach
each other. The groove or recess may vary in shape or depth according to the section
of coupling box and other circumstances. As hitherto made, without such grooves,
the ends of the wobblers of the rolls or of the driving shaft or the ends of the con-
necting spindles connecting one train of rolls with another cut into the interior of the
coupling boxes.
Especially is this the case when the trains of mills are out of truth, that is to say,
do not coincide axially. The effect of the abrading action is to produce an inclined
bed for the wobblers and spindle ends, and wrenching and torsional strains ensue
resulting in undue end thrust exerted on the standards of the rolling mills, and
in fracture of the boxes, wobblers and spindles.
Now, under this invention, the extreme ends of the wobblers and the extreme ends
of the coupling spindles and driving shaft lie in the grooves provided, as aforesaid, in

page_text: the coupling boxes, and do not bear against and abrade the internal surface of the
coupling boxes.
"
Referring to the accompanying drawings, Fig. 1 thereon represents a longitudinal
section of a coupling box a, provided, in accordance with this invention, with an
annular groove b, applied to the "wobbler c of a roll d and a coupling spindle e.
Fig. 2 is a transverse section midway in the coupling box. Fig. 3 further illustrates
the application of the coupling boxes to trains of rolls and to the driving shaft.
The groove in each coupling box is formed at or about midway between the ends
thereof and into it are extended the end of the wobbler c and the coupling spindle e
the extreme ends of which are thus kept from contact with the internal surface of the
wobbler and are consequently prevented from abrading the same, and forming an
inclined bed for themselves.
By thus keeping the wobblers and spindle ends in the original and even bearing the
creation of undue twisting and torsional strains is avoided throughout the mills and
the liability to burst the boxes and twist or wrench off the wobblers and spindle end
is reduced. A saving of metal is effected inasmuch as the coupling boxes are mado
less massive.
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
The provision in a coupling box, for connecting the "wobblers" and spindles in
metal rolling mills, of an annular groove or recess between the edges or sides of
which the extreme ends of the wobblers and spindles lie without coming into contact
with the interior of the box, or the bottom of the groove, substantially as and for the
purposes hereinbefore described with reference to the accompanying sheet of illustra-
tive drawings.
D: 07th Jave of Danawhan 1000
NICHOLAS WATTS,
Bristol Bank Buildings, Bristol, Agent.