Improvements in-and' relating to Rolling Mills.
Year: 1888

page_text: Date of Application, 12th Oct., 1888
Complete Specification Left, 11th July, 1889-Accepted, 24th Aug.,
1889
PROVISIONAL SPECIFICATION.
Improvements in-and' relating to Rolling Mills. .
I, JOHN JARDINE, of Windsor Terrace, Motherwell, Lanarkshire, Engineer, do
hereby declare the nature of my invention to be as follows:-
This Invention has reference to improved arrangements of gearing and mechanism
for actuating the screws in and over the housing frames of mills for the rolling
of metal cogs, blocks, plates, sheets, or bars, for regulating the height of the bushes
and upper rollers at their opposite ends individually, or both at the same time, and
which will be much more convenient than the mechanism heretofore employed for
that purpose.
The nature and novelty of these improvements consist in fitting near the upper
end of each screw, by a groove and feather, a wheel over a frame mounted on the
top of each housing, and with a strong bracket over it for steadying the wheel
and the upper end of the spindle passing through it. This screw wheel is employed
only for actuating or turning the vertical screw automatically by the new arrange-
ment of gearing within its usual screw nut in the housing to regulate the height
of the upper 'roller raised in its bearings in the usual manner by weighted levers
or otherwise. The frame carrying this screw wheel would have a bracket on one
side, preferably on the outer side of each housing carrying the end bearings of a
horizontal shaft with a worm on it, working into and turning the said screw wheel
mounted on the vertical spindle of the housing. On the outer or overhung end of
this screw wheel a toothed bevel or mitre wheel would be mounted, gearing into
two bevel wheels at right angles to it, mounted loose on a horizontal light driving
shaft carried in bearings in the same horizontal plane as the axes of the screwed
spindles and their actuating bevel wheels, on brackets over and in front of the
whole of the housings and rollers and parallel to their axes. This shaft might be
made in several lengths and coupled by screw flange or other couplings at intervals
between the housings, and be driven at one end constantly in one direction by a belt
and belt pulley, or by grooved band pulleys, or toothed gearing, from any adjacent
motive shaft. These double bevel reverse driving wheels, gearing into the centre
bevel wheel of each horizontal actuating screw of the wheel on the vertical screw
spindle of the mill, are mounted loose between collars on their line of shafting,
and have friction driving clutches on their inner faces or eyes fitted with split clutch
rings, and have wedges fitted and working within the angled splits of the rings
carried on a shifting grooved clutch box, mounted by a groove and feather on the
shaft between the wheels. Thus when this clutch is shifted to the one side or the
other, it drives the one bevel wheel or the other, to turn the horizontal screw in
either direction, and actuate the screw wheel on the vertical screw spindle in each
housing to raise or lower it within its screw bush over the end roller bearing as
required. Each clutch between the bevel wheels, would have a horizontal or other
double armed hand lever mounted on a fulcrum bracket projecting out from the frame
over the housing carrying the driving shaft, and with its forked arm working into the
groove of the clutch, leaving the other longer arm projecting out for the attendant
to move it and the clutch in either direction, to put the one bevel wheel or the
other into action as described, and so raise or lower each vertical screw of the housing
to any extent desired. When both vertical screws of the housings, where desired to
be raised or lowered simultaneously, the handles of both clutches could be drawn in
the same direction to put the bevel wheels on either side into gear with the clutch as
required to so raise or lower the screw spindles, and thus have the power of adjusting
the bearings at opposite ends of the rollers, to rise simultaneously and parallelly, or
individually and differentially as required. And a friction clutch and strap or friction

page_text: disc, with foot or hand lever action, might be fitted on the bevel wheel or spindle of
the horizontal screw to stop it simultaneously when throwing the clutch and loose
driving bevel wheel out of action.
The driving shaft common to the arrangements of gearing over each end housing and
mill, might be mounted over the whole row of mills in line; and each arrangement of
gearing may be covered to prevent scales and sparks getting at it.
Dated this 10th day of October 1888
W. R. M. THOMSON & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to Rolling Mills.
I, JOHN JARDINE, of Windsor Terrace, Motherwell, Lanarkshire, Engineer, do
hereby declare the nature of my invention, and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement in writing, reference being had to the accompanying 4 Sheets of Drawings,
and to the letters and figures marked thereon, that is to say :-
This Invention has reference to improved arrangements of gearing and motive
mechanism for actuating the vertical pressure screws up and down in and over the
housing frames and bushes of the top rollers of mills for the rolling of ingots or rough
slabs or billets of metal, generally called "cogs," blocks, plates, sheets, or bars, for
regulating the height of the bushes and upper rollers and distance between the upper
and lower rollers at their opposite ends individually, or both simultaneously at the
same time, and which will be much more convenient than the mechanism heretofore
employed for that purpose.
And in order that my said Invention and the manner of performing or carrying the
same into effect or practice may be properly understood I have hereunto appended
four explanatory Sheets of Drawings, in which the same reference letters are used to
indicate corresponding parts in all the figures where shown. Figure 1 on Sheet 1 is
an end elevation partly in section of an ordinary sheet metal rolling mill, and Figure 2
a corresponding plan, also partly in section both showing one mode and means or
arrangement and combination of my improved gearing and motive power mechanism
for actuating the main screws A in the upper part of their housing frames B, all in
accordance with the improvements of my said invention. And Figure 3 Sheet 1,
shows a section at right angles to Figure 1 of one of the screws A, and the screw
wheel and worm gearing mounted on top for actuating same, to show the details of
construction more clearly.
Referring to the Figures on Sheet 1 of these Drawings:-The nature and novelty
of these improvements consist in fitting on the upper end of each screw A, long
feathers A working in corresponding grooves or slotted seats in a screw or equivalent
motive wheel A², over a hollow frame B¹ mounted on the top of each housing frame B,
and with a strong bow bracket B2 over it both for steadying the wheel A² and the
upper end of each spindle A passing through it. The working bearing parts of the
frame and bracket B1, B2, are bored and bushed at 6 to fit and work on the eye of and
above and below the screw wheel A. Each screw wheel A2 is employed only for
actuating or turning its own vertical screw A up or down in the screw bush or top
part B of the housing B, screwed as usual to fit the screw A, automatically by the
new arrangement of gearing to regulate the height of the upper roller C, above the
lower roller C¹ either at one end individually or at both ends simultaneously and
which roller is raised by its bush.bearings C through the rods C in the usual
manner by weighted levers or hydraulic machines or otherwise, the lower end of each
Screw A working on the bush C, of the upper roller C to sustain the strain as usual.
Each hollow frame B₁ carrying the screw wheel A2 has a strong bracket D formed or
secured on one side, preferably on the outer side of each housing frame B carrying
'the end bearing blocks D' of a horizontal short shaft D? with a worm or screw on it

page_text: preferably having a right handed thread, and fitted with a hinge cover to prevent
dust getting into the oil and screw and screw wheel as seen particularly in Figure 3,
and fitted to work into and turn the said screw wheel A mounted on the vertical
spindle A of the housing B to the right or left and so screw each spindle A down or
up respectively according to the direction the screw spindle D2 is turned. On the
outer or overhung end of each screw spindle D² a toothed bevel or mitre wheel dis
mounted, gearing into two bevel wheels d', d, at right angles to it, mounted loose on
a horizontal light driving shaft D³ carried in bush bearing pillow blocks D" in the
same horizontal plane as the axes of the screwed spindles D2 and their actuating bevel
wheels d to don strong brackets D11 secured on standards to the frame B¹ over and
This
in front of each housing frame B, and rollers C, C, and parallel to their axes.
transmitting motion shaft D3 might be made in several lengths or parts and coupled
by screw flange or other couplings as shown at D at intervals preferably between tho
housings B, B, one of these couplings being so fitted by a groove and feather that a
slight longitudinal yielding may take place without straining the parts of the shafts in
their bearings, when the housings vibrate. This line of shafting D³, would preferably
be driven at one end constantly in one direction by spur wheel gearing EE", the
former E' preferably mounted on the horizontal crank shaft E in bush bearing blocks E¹
parallel to the shaft D³ on the same brackets and supports D₁ from the housings B, B',
the crank shaft E in this case being shown as actuated by a small vertical cylinder steam
engine secured to the outside of one of the housing frames Bat E2. Or the shafting D³
might when more convenient be driven by a driving belt and belt pulley, or by a rope
or band and grooved pulleys, from any adjacent motive shaft of the works. Each set
of double bevel reverse driving wheels d', d², gearing into the centre bevel wheel d of
each horizontal actuating screw D' of the wheel A2 on the vertical screw spindle A of
the mill, are mounted loose between collars on their line of shafting D³, and have a
friction driving clutch on their inner faces or eyes fitted with split clutch rings, and have
wedges fitted and working within the angled splits of the rings carried on a shifting
grooved clutch box d mounted and driven by a groove and feather on the shaft d
between the wheels. Thus when this clutch is shifted to the one side or the other,
it drives the one bevel wheel or the other 2, to turn the horizontal screw D³ in
either direction, and actuate the screw wheel A2, on the vertical screw spindle A in
each housing to lower or raise it or vice versa within its screw bush B₁ in the housing
frame B over the journal bearing C2 of the upper end roller C, as required. Each
clutch d, between the bevel wheels d' d' has a horizontal or other double armed hand
lever d mounted on a fulcrum bracket projecting out from the frame over and to the
one side of each housing carrying the driving shaft D³, and with its forked arms
working into the groove of the clutch d', or on to pins in a split ring leaving the other
longer arm projecting out for the attendant to move it and the clutch ³, in either
direction, to put the one hevel wheel d' or the other d² into action or both out of action
as required and as described, and so raise or lower each vertical screw A of each
housing to any extent desired. When both vertical screws A of the housings Bare
desired to be raised or lowered simultaneously, the handles of both clutches dª could
be drawn in the same direction to put the bevel wheels d', d¹, or d², d², on either side
into gear with the clutch d', as required to so raise or lower both screw spindles A
simultaneously and thus have the power of adjusting the bearings at opposite ends of
the rollers, to rise simultaneously and parallelly, or individually and differentially as
required to suit the thickness or angle or different thickness of the plate to be rolled at
the opposite sides. And a friction clutch and strap or friction disc, with foot or hand
lever action, might be fitted on the spindle D2 or on the shaft D³ of the bevel wheels d,
or d', d to stop the action of the screws individually or simultaneously when throwing
the clutch and loose driving bevel wheels out of action.
The driving shaft D³ common to the arrangements of gearing over each end
housing B and mill, might be mounted over the whole row of mills in line; and each
arrangement of gearing and clutches may be covered to prevent scales and sparks
getting at it. And an index engine divided wheel a is secured on the upper end of
each spindle A with a fixed index pointer a' attached to the frame beside the index

page_text: wheel to indicate to the attendant the exact height of the screw A and roller C from
the under roller C, to suit the thickness of plate or bar which would pass between them.
Referring to Sheet 2, Figure 4 on Sheet 2 is an end elevation, partly in section, and
Figure 5 a half plan of an ordinary roll mill for rolling plates or it might be bars, as
shown fitted with a modification of my improvements in which a bevel wheel A is
fitted or mounted by a deep eye or hollow spindle and feathers and grooves A¹ on the
upper end of each screw spindle A, in the upper frame B¹ and bracket B³ to turn the
spindle A, instead of the screw wheel A2, shown in the former modification Figures 1
to 3. This bevel wheel A³ is turned or actuated by a bevel pinion A on the spindle D³
of the reversing driving bevel wheel d, of the new clutch reversing mechanism d
to d', which is fitted the same in the other half of the mill and housing not shown in
Figure 5, and in this case the crank shaft E which through the wheels EE" drive the
transmitting motive shaft D³ is actuated by a horizontal cylinder steam engine E'
carried on a framing E³ secured to the upper frame B' and bracket D supporting
the new actuating screw shaft D³ and reversing gearing of the screws A A from the
housings B, B. In other respects this arrangement and the improvements are sub-
stantially the same as that shown and described in reference to Figures 1 to 3, and
lettered to correspond, so as to regulate the height of either end of the roller C by
turning either screw A, or both ends of the roller C simultaneously and parallelly by
turning both screws A, A, by their respective wheels d¹, d, or d³, d, and clutch
mechanism d³, d, in either direction as hereinbefore described.
Referring to Sheets 3 and 4. Figure 6 is an end -elevation, partly in section, and
Figure 7 a corresponding plan showing my improvements as applied to a cogging
mill, which requires to have its upper roller C raised and lowered at both ends
parallelly and simultaneously in both housing frames B, B, by turning the screws A, A
simultaneously in either direction by the pinion shafts D2 and shaft D³, through mitre
wheels d keyed on them, and having this shaft D³ turned in either direction by
a vertical shaft D carried in bush bearing brackets D, DI, at the upper and lower
part of one housing frame B, and geared together by mitre wheels keyed on
them, this vertical shaft D, being in this case made the reversing shaft to so raise and
lower the screws A, A, simultaneously according to the direction this shaft is turned
by its bevel wheel d keyed on its lower end, gearing into the reversing clutch bevel
wheels d d mounted loose on a long transverse reversing shaft F carried in pillow
bearing blocks F¹ under the floor level of the mill, and actuated by a horizontal steam
engine E, E, and spur gearing E' E from its crank shaft E in one direction. This
long transverse shaft F, has mounted at its extreme ends at F³, F³, a corresponding
arrangement of reversing loose clutch wheels d¹, d², gearing into a corresponding
wheel d, each on short spindles G having pinions at 9, 9, on their inner ends which
through the intermediate pinions g' actuate in either direction the spur wheels G¹
of the outer traversing rolls R of the whole series of rolls R to Re actuated
by their respective wheels G2, and intermediate wheels G", and which carry the
cog, plate, ingot or slab to and through the cogging rollers C, C, according as
the moving clutch is reciprocated to actuate the loose wheels d', d', or d², d², of
theso arrangements of the reversing clutch mechanism. In other respects this
arrangement is substantially similar to the former Figures on Sheets 1 and 2 and
lettered to correspond.
'
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 :-
First. The arrangements and combinations of reversing gearing and motive
mechanism for actuating the vertical pressure screws up and down in and over the
housing frames of mills, used for the rolling of metal "cogs," blocks, plates, sheets or
bars, for regulating the height of the bushes, and upper rollers, and distance between
the upper and lower rollers, at their opposite ends individually or both simultaneously
at the same time, substantially as herein described and distinguished in reference to
and shown in Sheets 1, 2, and 3, 4, respectively of the accompanying Drawings.

page_text: Second. In metal rolling mills, the fitting of reverse clutch gearing on the trans-
mitting motive shaft or shafts to put a screw or screws, wheel or wheels into or out of
action to raise or lower each vertical screw spindle of each housing to any extent
desired, or raise or lower both screw spindles simultaneously and parallelly, or
individually and differentially as required, substantially as and in the manner
herein described and distinguished in reference to and shown in the accompanying
Drawings.
1000
"COOT ra ra Cun
DOTT Cu no
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.