IMPROVEMENTS IN PLATE ROLLING MILLS
Year: 1884

page_text: I CHARLES BURROUGH of Darnall in the County of York, Furnaceman do
hereby declare the nature of the said invention for "IMPROVEMENTS IN PLATE
ROLLING MILLS" to be as follows:-
This Invention relates to improvements in the construction of mills or machines
for rolling metal plates; the objects being to avoid the frequent breaking of the
rolls, and to facilitate the process of rolling or reducing the thickness of the work
or plate, and also to facilitate the return of the plate into contact with the rolls.
To accomplish these objects I provide and construct the frame or housings of
the rolling mill or machine so as to receive four or more additional rolls above and
below those between which the work has to be passed or rolled in order that
support may be thereby provided for the whole length of the rolling or main rolls.
By this arrangement I can use rolls of smaller or lesser diameter, by means of
which the process of reducing the thickness of the work or plate is facilitated and
at the same time less power is required to drive or revolve the rolls.
I also improve the means of insuring the quick return of the work or plate into
contact with the main rolls by providing a carrying roller on each side of the
machine, these carrying rollers I support in the same manner as the main rolls by
additional rolling shafts or bearers; the said side carrying rollers are revolved or
driven by chain gearing from the ends of the main rolls.
I also provide for each of the said side carrying rollers, a clutch coupling or crab
connected thereto; this clutch coupling or crab which is to drive the carrying
roller is loose, and I provide another clutch either on a feather key or on a square
part, so as to slide or slip out of gear at the time, when by the weight or friction
caused by the plate resting upon the carrying roller and passing through or between
the main rolls, at which time the carrying roller is being revolved at a greater
speed, the clutch teeth or lugs being angular or wedge shaped at once separate
automatically. On the sliding clutch I form a groove in which I arrange a forked
lever to work for the purpose of putting the coupling into gear,

page_text: "
COMPLETE SPECIFICATION.
I CHARLES BURROUGH of Darnall in the County of York Furnaceman do
bereby declare the nature of my said invention for "IMPROVEMENTS IN PLATE
ROLLING MILLS," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement in writing and on
reference being had to the accompanying sheet of drawings, that is to say :—
This Invention relates to improvements in the construction of mills or machines
for rolling metal plates, the objects of the invention being to avoid the frequent
breaking of the rolls, and to facilitate the process of rolling or reducing the
thickness of the work or plate, and also to facilitate the return of the plate into
contact with the rolls.
To accomplish these objects I provide and construct the frame or housings of
the rolling mill or machine so as to be capable of receiving additional rolls above
and below those rolls between which the work or plate has to be passed or rolled
in order that support may be thereby provided for the whole length of the rolling
or main rolls. By this arrangement of the construction of the machine I can use
rolls of smaller or lesser diameter by means of which the process of reducing the
thickness of the work or plate is facilitated and at the same time less power is
required to drive or revolve the rolls. 1 also improve the means of ensuring the
quick return of the work or plate into contact with the main rolls by providing a
carrying roller on each side of the machine; these carrying rollers I support in
the same manner as the main rolls by additional rolling shafts or bearers; the said
side carrying rollers are revolved or driven by chain gearing from the ends of the
main rolls. I also provide for each of the said side carrying rollers a clutch
'coupling or crab connected thereto; this clutch coupling or crab which is to drive
the carrying roller is loose and I provide another clutch either on a feather key or
on a square part so as to slide or slip out of gear at the time when, by the weight
or friction caused by the plate resting upon the carrying roller and passing through
or between the main rolls at which time the carrying roller is being revolved at
a greater speed-the clutch teeth or lugs being angular or wedge shaped at once
separate automatically. On the sliding clutch I form a groove in which I arrange
a forked lever to work for the purpose of putting the coupling into gear.
In order that the carrying out of my said invention in practice. may be more
fully understood I have illustrated it on the accompanying sheet of explanatory
drawings in which Figure 1 represents a side elevation and Figure 2 comprises a
half end elevation and a half section (on the line 1-2 in Figure 1) of my improved
plate rolling mill or machine.
In both Figures the same letters of reference are used to denote the same or
corresponding parts of the rolling mill or machine.
I would here remark that although my invention includes the adapting of a
rolling mill or machine so as to receive when required four or more additional
rolls, for the sake of convenience, and clearness of illustration, only two additional
rolls are shown on the drawings. A is the bed plate of the rolling mill or machine.
B. B, are the housings or framework. O is the top roll and D is the bottom roll
between which rolls the plate or material to be rolled is placed and operated on, the
process of rolling being as in the usual manner Eis the additional roll which I
provide arrange and use for the purpose of supporting the top roll C. F is another
additional roll which I provide arrange and use for supporting the bottom roll D.
G is the bearing piece and H is the cap connected thereto by the rods J for
balancing or keeping the additional roll E in position. The rods J are similarly

page_text: arranged at both ends of the roll and they are connected and operated by levers or
other suitable means, for the purpose of keeping the roll lifted against the brasses
in the chocks J¹ so as to admit the plate or material to be rolled entering between
the rolls. K is the bearing or carriage which slides in the grooves of the housings,
which bearing or carriage is supported by the rods L these rods being also operated
by levers or otherwise as the rods J before mentioned. M is the carrying roller
and N, N are the additional rolling shafts or bearers for supporting the said
carrying roller M.
It will be obvious and should be understood that I provide arrange and have
carrying rollers and supporting shafts or bearers on both sides of the rolling mill
or machine alike.
O, is the shaft which is connected to the carrying roller M. P is the clutch
coupling which I fit loosely on the round part of the shaft O and it is driven or
revolved by the chain gearing V W. Qis the clutch coupling which I arrange to
work on a square part o of the shaft O in such a manner as to slide in or out of
gear with the clutch coupling P by means of the fork lever R which lever is carried
on a bracket S attached to the housing or framework.
It will be seen that after the plate or material to be rolled has been brought or
carried by these rollers (as just described) into contact with the main rolls C and D
the pressure upon them, caused by the plate or material entering and passing
through the said main rolls will cause the said carrying rollers to revolve at a
greater speed in consequence of which the clutch coupling which is on the square
part of the shaft O will outstrip the clutch coupling P and thereby separate
automatically, by reason of the angular form of the teeth or lugs.
T is the standard for supporting the middle part of the carrying rollers M. U is
the standard for supporting the end of the shaft O.-X is the cross bar for keeping
the housings or framework of the machine in proper position.
It should be observed that although not shown on the drawings I provide and
use the usual kind of couplings and appliances for driving my plate rolling mill or
machine and I also adopt the usual screw method or means for bringing down the
top rolls on to the work to be rolled.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I would here state
that I do not confine or limit myself to the precise details of the invention as
hereinbefore described and as illustrated on the accompanying sheet of drawings
because modifications or variations can be made therein without departing from
the principles or main features, of my invention and in conclusion I declare that
what I claim is
1. The general construction arrangement and combination of parts constituting
an improved mill or machine for rolling metal plates substantially as set forth.
2. In a plate rolling mill or machine the providing arranging and using one two
or more additional rolls for supporting each of the main rolls constructed sub-
stantially as described and as illustrated on the accompanying drawings.
3. In a plate rolling mill or machine the providing arranging and using carrying ·
rollers supported substantially as described and illustrated.
4. In a plate rolling mill or machine the construction arrangement and use of
clutch couplings or crabs for the purpose of disengaging the driving gear of the
carrying rollers substantially as described and illustrated.