Improvements in and Connected with Machines or Mechanism for Rolling, Straightening, and Finishing Round Metal Bars and Tubes.
Year: 1888

page_text: Improvements in and Connected with Machines or Mechanism for
Rolling, Straightening, and Finishing Round Metal Bars and
Tubes.
1, JOHN FARMER, of 147. St. Andrews Road, Pollokshields, Renfrewshire, Engineer,
do hereby declare the nature of my invention to be as follows:-
My said Invention has reference to improvements in the construction of machines
or mechanism for rolling, straightening and finishing round metal bars or tubes, and
to that class of machines for which the bars or tubes are supplied hot in a more or less
approximately prepared round shape in other ordinary longitudinally rolling mills, for
being so treated, by rolling them through between a pair of edge running rolls.
circumferentially, while traversing them longitudinally by the reverse angular action.
of the rolls, and at a greater speed proportionate to the greater angle given to tho
rolls. And the invention comprises many important improvements in the construction
of the main housing frames carrying the said, working rolls, and the bearings of their
shafts, and those of all their driving shafts, gearing, screws, and spindles for angling,
setting, pressing, and retaining the rolls in their proper working positions, and in tho
arrangements and combinations of the various main and actuating parts of these
machines, all for the purpose of making the machines so constructed moro
efficient and durable for the work, and more convenient for being shifted and
manipulated by the workinen for the various sizes and kinds of work required, as also
for getting at all the working parts and bearings for oiling and tightening them up,
and for removing the parts and changing them or for making repairs, than has
heretofore been the case in machines for this kind of work.
The nature and novelty of the invention and its improvements consist all as
follows: According to one construction, or arrangement or combination of the parts,
in accordance with my invention and its improvements, the edge running and pressing
angling rolls are fitted and carried in short journal shafts in their swivelling bushed
trunnion housings and strong head-stocks in the ends of the transverse main headstock
bed frame, the shafts being preferably made solid with the rolls, all preferably of
:

page_text: .
chilled iron and slightly rounded at the edges of their rolling surface, to allow the bar
to be 'rolled and pressed between them and be traversed horizontally nearly or rather
lower than in the transverse line of their centres, and parallel to the axes of the rolls
in plan view. The bar while being rolled is guided horizontally and longitudinally as
stated in strong bed plates or rails in lengths secured to each other at some height
above the floor on each side of the strong main bed frame carrying the bearing
housings of the rolls and actuating gearing transversely in the centre of these rails,
and bolted down to a suitable strong foundation of mason or concrete work in a recess
in the floor at a sufficient depth to liave the centres of the housings and rolls as stated
slightly higher than the axial line of the bar being rolled by them, and so as to tend
to keep the bar down to its guide rails. These rails are fitted at their ends with
angled or inclined plane stools or brackets on their under surface, resting on corre-
spondingly planed bearing guide bed plates firmly bolted down to concrete or mason
work sunk in the floor, the extreme end blocks having screw spindles mounted in
bearings in them with turning wheels and holes in their periphery for turning these
scrow spindles, and screw slide nuts mounted on the spindles and in vertical slide
guides in the end stools of the rails, so that as the spindles were turned the rails would
be shifted on end on their inclined bed plates and so raise or lower them to suit the
diameter of bars being rolled for the time being. Strong brackets would be mounted
on the ends of the bed rails, adjacent to the rolling mill, to carry the ends of a strong
hollow water supply bed-plate with jet holes up through it between the rollers under
the bar being rolled, witli slotted holes at right angles to each other and screw bolts,
which would be loosened when these rails and bed plates had to be shifted and set to
suit different diameters of bars, to admit the rails to be shifted longitudinally, and the
hollow bed plate laterally, and have the bolts secrewed up again. Each skew or
angling roll is carried by its journals in strong-necked bush bearings close to the sides
of the roll, fitted in transverse webs in the inner end of a large hollow cylindrical
turned trunnion, open at this end for the easy removal of the roll by screwed end
covers on the bearings. Lateral gaps are cut out of this front cylindrical end on
opposite sides for the securing of a bevelled driving pinion on the one end of the
spindle of each roll, which is actuated by a large bevel wheel mounted loose on a
turned hollow boss on the outside of this inner cylindrical trunnion, these wheels
being on opposito ends of their spindles to give the motions to their rollers in opposito
directions.
A spur wheel is cast or formed in one with the bevel wheel, and its eye is formed
with deep turned flanges which retains this bevel and spur wheel by a collar bearing
ring screwed on the boss. One of these swivelling trunnion housings carrying its
roll, has its outer end turned with collars to swivel in long bush bearings fitted in one
of the end headstocks of the bed frame, and retain it. in a fixed transverse position,
also fitted with strong sunk screwed on removable covers for removal and case of
lifting out the swivelling trunnion with its roller. The inuer cylindrical ends of both
trunnions are turned and fitted within a bored supporting hollow transverse chamber
in the centre of the strong headstock bed frame strengthened by strong transverse and
vertical webs and feathers but having recesses formed in the centre for allowing
the bar to pass freely through; which gives great steadiness and stability to the
trunnions and to the rollers and gearing which they carry. This central hollow
supporting part of the frame is also fitted with a checked screwed on cover for
removal and freedom in lifting out the large hollow boss end of the trunnion and its
roller, and formed with a recess in the centre for seeing the action of the rolls and
letting in water in a jet over the hot bar, and these heavy covers would be formed
with screwed sockets for the insertion of lifting rings. The two strong outer vertical
headstocks carrying the outer ends of the hollow trunnions, beyond the gaps for the
spur and bevel wheels working in, are stayed high up at top on opposite sides by
strong transverse tie bolts and stay tubes, out beyond the cover of the central
cylindrical case, to allow this to be easily lifted off. The trunnion housing on the
opposite side has to move transversely in its inner circular hollow bored case, and
trunnion end bearing in the headstock and its cover, to press its roller to and from

page_text: the other roller to suit different sizes of bars, and give the pressure required. This is
effected by turning and fitting a strong screw bush within the outer hollow end of the
trunnion, and within the bearing in its vertical headstock, which has also fitted within
its outer end a vertical collar bush bearing within which the journal collar end of a
strong screw is fitted, with the screw on its inner end working through the screw
bush on the hollow trunnion, and having fitted on its outer end a large hand spoked
wheel for screwing in or out this housing and roller, to give the pressure desired on
any size of bar being rolled. The rim of this hand spoked wheel may also be toothed,
and have a screw working in it, fitted on the lower end of a spindle with hand wheel
above, the spindle being carried in an eccentric bush bearing bracket bolted on the
outer upper end of the headstock, a lever on the eccentric bush spindle throwing the
screw spindle out of gear with the hand wheel when quick motion is desired, the screw
spindle giving the greatest nicety of adjustment and pressure while retaining it in the
position set. These edge running skew rolls would be driven at a high speed in
opposite directions through their bevel wheels and by their spur wheels, actuated
through pinions gearing into them on a single transverse first motion shaft carried in
bush bearings preferably in the lower back part of the two headstocks of the main bed
frame, with side covers for ease of removal and getting at the gearing on the shaft,
the pinion gearing into the spur wheel on the moving housing being mado much
broader than the other stationary one, for this purpose. This first motion shaft would
have a flanged or other coupling at one end to be coupled to a shaft or line of shafting
in a covered channel below the surface of the floor to one side of the shop, to be
actuated by any stationary engine for the purpose, or from any other power
transmitting shafting of the works.
A sheet-iron segmental case would be fitted and secured at its ends over the top of
each side gap and spur wheel working in it on the neck boss of each trunnion or
swivelling housing of and carrying its skew or angling edge roll. A would be
gap
formed in the underside of the central bored case of the bed frame, in which the open-
cylindrical end of each trunnion housing works, and just under this for a strong steel
scrow to work up through, secured on the centro of a transverse horizontal spindle
carried on bearings on each side of gap and bed plate. Each screw would work up
into a parallel toothed segmental wheel formed on the under circumference of the
trunnion housing of each roll; and according as each screw spindle was turned to the
right or left it would swivel its roll to any desired angle to the bar being rolled; that
is, with the shaft or axis of either roll parallel to, or at any desired angle to the bar
being rolled by the two rolls. The two screws would have right and left hand threads,
so that when geared into parallel teeth, their spindles would have their outer ends
angled equally towards each other and be both geared together by pinions and an
intermediate spur wheel below, so that when either spindle was turned the screws
would angle the rolls in reverse directions to each other. Each screw spindle would
he actuated by bevel pinions keyed on their outer ends (beyond the spur wheels
gearing them together) gearing into corresponding wheels, mounted loose on the first-
motion side shaft, with friction clutches on their adjacent ends, actuated by a shifting
double-cone reversing clutch mounted on the shaft with driving feathers and slots,
and shifted by a central groove and double-armed or fork shifting lever on the central
spindle below carrying the intermediate spur wheel between the screw spindles. A
connecting rod on the outer end of the lower lever is led and connected at its other
end to the lower short arm of a vertical hand lever fulcrumed to the bed frame below
the floor but projecting above the frame at one side to be conveniently worked to
throw either clutch and its screw spindle into gear with the first-motion shaft, and so
angle the trunnion housings on their rolls more or less in opposite directions according
as either clutch is thrown into gear; the screw spindles thus also retaining the
housings and rolls securely from shifting in the position they had set them to. In
some cases a disc wheel with holes in it may be fitted on one of the screw spindles, for
using a lever in the holes to turn the screws instead of the reversing clutch. To give
great steadiness and prevent all vibration of the raising and lowering water bearing
bed block between the rolls under the bar being rolled, it is made of an angled shape

page_text: on the underside below the water box part deep in the centre and widest at the outer
end, with planed surface for a strong planed hollow wedge block to be fitted to slide
out and in under it on a planed bearing slide bed in the centre of the lower strong bed
frame, which would be fitted with a strong screw spindle working in a collar bearing
_in_front of the wedge block with screw working in a screw bush fitted in a vertical
slide groove in the front end of the wedge block. The screw would be turned by a
round head with holes through it for inserting a turning and fixing lever rod and
turning the screw to tighten up the wedge under the bearing block to the height it
was raised or set to, the rod passing into a retaining hole in a fixed flange or pro-
jection on the bed for the fixing of the screw when tightened up. Vertical guide bars
would be secured on the top of one side of the long guide rails supporting the bar
being rolled, with rounded faces at the entering end, and with moving bell crank or
angled levers mounted by joint pins and slots in the top of the guide bars, so that the
lower rounded end of the angled arm would project down in front of the bar to guide
and press the moving bar against it by the weight of a ball on the horizontal arm of
the guide lever, which would be tilted over on their guides as required, to steady the
bar in its rotating and longitudinal traversing motion.

page_text: COMPLETE SPECIFICATION.
Improvements in and Connected with Machines or Mechanism for
Rolling, Straightening, and Finishing Round Metal Bars and
Tubes.
I JOHN FARMER, of 147 St. Andrews Road, Pollokshields, Renfrewshire, 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 5 Sheets of Drawings,
and to the letters and figures marked thereon, that is to say:―
My said Invention has reference to improvements in the construction of machines
or mechanism for rolling, straightening, and finishing or planishing round metal bars
or tubes, and to that class of machines for which the bars or tubes are supplied hot in
a moro or less approximately prepared round shape in other ordinary longitudinally
rolling mills for being so treated by rolling them through between a pair of edge
running rolls circumferentially, while traversing them longitudinally by the reverse
angular action of the rolls, and at a greater traverse proportionate to the greater angle
given to the rolls. And the invention comprises many important improvements in the
construction of the main housing frames carrying the said working rolls, and the
bearings of their shafts, and those of all their driving shafts, gearing, screws and
spindles for angling, setting, pressing, and retaining them in their proper working
positions, and in the arrangement and combinations of the various main functional or
actuating parts of these machines, all for the purpose of making the machines so con-
structed more efficient and durable for the work, and more convenient for being shifted
and manipulated by the workmen for the various sizes and kinds of work required, as
also for getting at all the working parts and bearings for oiling and tightening them
up, and for removing the parts and changing them, or for making repairs, than has
heretofore been the case in machines for this kind of work.
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 Five 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 a central transverse sectional elevation, that is at right angles to the
traverse of the round bar or tube a to be rolled or treated, of one arrangement
of the shafts bearings, and headstock frames for carrying the rotating edge running
and pressing angling rolls A, A¹, all in accordance with my improvements.
Figuro 2 on Sheet 2 is a sectional plan corresponding to Figure 1. Figure 3 on
Sheet 3 is a half end section, and Figure 4 a longitudinal sectional elevation, both
corresponding to, and respectively taken on the lines 1-1 and 2-2 in Figure 1
the latter being in the parallel line of the traversing bar or tube being treated.
Figure 5 on Sheet 4 is a detailed sectional plan, showing the first motion driving
shaft G of the machine, carried in bearings G" under the ground level at the
back or delivery end of the machine, and the gearing for driving and angling the

page_text: edge running, pressing and traversing rolls A A' as will hereafter be described.
Figures 6 and 7 on Sheet 5 are a general plan and longitudinal elevation respec-
tively of the machine to a smaller scale than shown in Sheets 1 to 4 showing one
half or end of the carrying table frames E E, to the right, at the level of the
ground with a bar a as in the act of being straightened and delivered through the
machine, over said table frame E E¹, the table frame EE', on the left being shown as broken
away. Figures 8 and 9 are a corresponding plan and transverse section respectively and
Figure 10, a side elevation, all to a large scale showing a portion of the carrying
table frame E, E, and the arrangement for guiding the bar a longitudinally and
laterally over the table EE. While Figure 11 is a transverse or horizontal section
of one of the guide arms I, as taken on the line 3-3 in Figure 9.
Referring to these drawings, the nature and novelty of the invention and its improve-
ments consist all as follows:-According to one construction, or arrangement and
combination of the parts, in accordance with my invention and its improvements as
shown on these Drawings, the edge running and pressing angling rolls A A', which
roll and traverse the bar a between them, are each fitted and carried on short journal
shafts A in bushed bearings A2, B3, in their swivelling bushed trunnion housings B B¹.
The housings B and B are respectively carried by their trunnions B2, B3, in bearings
at Cin the vertical ends C¹, C', of the transverse main headstock housing bed
frame C2, C3, bolted down to a strong foundation Z at C. The shafts A" of the
rolls A, A, are preferably cast solid with their rolls A, A', all preferably of chilled iron
and slightly rounded at the edges of their rolling surface, to allow the bar a to be rolled
and pressed between them and be traversed horizontally on the upper surface of an
adjustable bed frame D mounted between the rolls A A¹, nearly or rather lower than
in the transverse horizontal line of their centres, and parallel to the axes of the rolls A, A¹,
in plan view, as shown particularly in Figures 1 and 2. The bar a while being rolled,
is guided, (while being fed in and delivered) horizontally and longitudinally as stated
on the strong narrow bed plates or rails E, E', (in lengths secured to each other at E")
preferably at, or a very little above, the floor level, at each end of the said strong
main bed frame C to C carrying the trunnion bearing housings B, B₁ of the rolls A, A¹
and actuating gearing transversły placed in the centre between these rails E, E, and
bolted down to a suitable strong foundation of mason or concrete work at Z, Z, in a
recess Z¹ in the floor, at a sufficient depth to have the centres of the rolls A, A', and
housings B, B as before stated slightly higher than the axial line of the bar a being
rolled by them on the said bearing supports E E' and D, and so as to tend to keep the
bar down to its guide rails D and E, E. These carrying rails E, E, of which only
one set are shown to the right in Figures 6 and 7, are fitted at their ends with angled
or inclined plane stools or brackets E, on their under surface, resting on correspond-
ingly planed inclined bearing guide bed plates E³ firmly bolted down to concrete or
mason work Z sunk in the floor, the extreme end blocks E3 having screw spindles e
mounted in end bearing brackets e¹ on them, with turning wheels and holes in their
periphery for turning the screw spindles e by a lever; and have screw slide nuts
mounted on the spindles e, and secured in vertical slotted or slide guides ate in the
end stools E2, of the rails E, E', so that as the spindles e are turned, the rails would be
shifted on end on their inclined bed plates E³, and so raise or lower them to suit the
diameter of bars a being rolled for the time being. Strong brackets F, are mounted
and screwed on the ends of the bed rails E', E, adjacent to the rolling mill A to C₁, to
carry the flanged ends D" of the strong hollow water supply bed plate D, with jet
holes in the centre at D', as seen particularly in Figures 1, 2, and 4 up through it
between the rollers A A', under and supporting the bar a being rolled. Slotted
holes Fare formed in the carrying brackets F, and in the flanges D", at right
angles to each other, for the securing screw bolts at F', which would be loosened when
these rails E E¹, and bed plate D had to be shifted and set to suit different diameters
of bars a to allow the rails E E', to be shifted longitudinally, and the hollow bed
plate D laterally, and have these bolts screwed up again. This hollow bed plate D
which supports the pressure of the bar a between its skew rolls A. A', is made hollow
below at D to contain water, supplied from a head or from a circulating pump, for

page_text: keeping it cool and supplying a small portion in jets up through the holes D¹ at the
bearing part between the rollers. To guide and steady the bar a laterally or trans-
versely, as it is being fed in or delivered over the rails E E', an angle iron guide
rail H, H¹, with rounded vertical edge at its entering end H", or other equivalent,
would be bolted by the horizontal flange H, to the one side of the rails E E', as seen
particularly in Figures 6 and 7, so that their vertical flange would guide the
bar a laterally and longitudinally as it was guided horizontally on the bed rails E E¹.
Each skew or angling roll A and A' is carried by its journals A" in the strong
necked bush bearings A³ close to the sides of the roll, fitted in transverse bearing
webs B, in the inner end of the large hollow cylindrical turned trunnion swivelling
housings B and B', open at the inner ends for the easy removal of the rolls A, A', by
screwed on end covers A on the bearings A², B". Lateral gaps at B are cut out
of this inner cylindrical end of the housings B, B' on opposite sides for the securing
of a bevelled driving pinion b on each diagonally opposito end of the spindle of each
roll A, A', as seen particularly in Figure 2, and which is actuated by a large bevel
wheel, gearing into said pinion b and mounted loose on the turned hollow boss 611
formed on the outside or neck of this hollow cylindrical trunnion housings B, B', theso
bevel pinions being thus mounted on the opposite diagonal ends of their spindles A¹¹
to give the motions to their rollers A, A', in opposite directions from the first motion
shaft, as will hereinafter be described.
A spar wheel b³ is cast or formed in one with the said bevel wheel 6' of the opposite
trunnion housings B, B, and its rotating oyo is formed with deep turned flanges b³
which retain these bevel and spur wheels 61, 63, on its rotating centre by the fixed
collar of one of the bearings C, C, or by a collar bearing ring 6 screwed on the
boss of the moving trunnion B1, B33 as shown on the left hand side of Figures 1
and 2. One of these swivelling trunnion housings B carrying its roll A, has its outer.
end trunnion B2 turned with collars to swivel in a long bush bearing C, C, fitted
in one of the vertical ends of the headstock bed frame C2, C3, and retain the
housing B and its roll A to rotate in a fixed transverse position to the bar a being.
rolled, and is also fitted with strong sunk screwed-on removable covers at c for removal
and
ease of lifting out the swivelling trunnion B, B2, with its roller A and
wheels b, b', 6. The inner cylindrical ends of both trunnion housings B, B', are
turned and fitted within a bored supporting hollow transverse chamber C3, C4, in the
centre of the strong beadstock bed frame C, C, C, strengthened by strong transverse
and vertical webs and feathers C, but having a recess a¹ formed in the contro
between them. for mounting the bed-plate D, and allowing the bar a to pass freely
through over it; all which gives great steadiness and stability to the trunnions B, BI,
and to the rollers A, A. and gearing which thoy carry. This central hollow supporting
part of the frame C³, C, is also fitted with the check screwed-on cover C', for
removal and freedom in lifting out the large hollow boss ends B, B1, of the trunnions
and their roller A, A', and formed with a recess at a² in the centre for observing the
action of the rolls A, A', and the work as it is being done, and for letting in water in
a jet over the hot bar a, and these heavy covers C, (, are formed with screwed
sockets C for the insertion of lubricators or lifting rings as indicated in dotted lines
in Figure 1. The two strong outer vertical headstocks C, C and C₁C", carrying
the outer ends B2, B3, of the hollow trunnion housings B, B₁, beyond the gaps
tho and bevel wheels working in, are stayed high up at top on opposite sides
by strong transverse tie bolts and stay tubes at c, c', out beyond the cover of the
central cylindrical case 03, 0, to allow this to be easily lifted off. The trunnion
housing B, B3, on the left side in tho Drawings, has to move transversely in its inner
circular hollow bored case (³, C'. and trunnion end bearing C, C, in the head-
stock C, and its cover C, to press its roller A' to and from the other roller A to
suit different sizes of bars a, and give the pressure required to roll these between them.
This is effected by turning and fitting a strong screw bush d within the outer hollow
end of the trunnion B3, to allow this to turn, but with a feather traversing in a
groove in the cover C, to prevent the bush from turning in its vertical headstock C₁
which latter has also fitted within its outer end a vertical collar bush bearing d³,
spur
for

page_text: in two parts, within which the journal collar end of a strong borizontal
centre screw ', is fitted to rotate, so that the screw on its inner end works
through the screw bush d in the hollow trunnion B³ to shift and retain this in any
desired position. For so turning the screw a large hand spoked worm wheel dis
secured on its outer end as shown in Figures 1 and 2, to screw this housing B
and roller A¹ to or from the roller A, to give the pressure desired onl
any size of bar a being rolled. The rim of this hand spoked wheel ³ may also be
toothed and have a screw working in it, fitted on the lower end of a spindle d
with hand wheel above, this spindle being carried in an eccentric bush bearing
bracket bolted on the outer upper end of the headstock C, a lever do, on the
eccentric bush throwing the screw spindle d and screw, which it carries, out of
gear with the teeth in the hand wheel d³ by reason of the eccentricity of the bush
when quick motions are desired, by the hand spoked wheel; the screw spindle d*,
when put into action giving the greatest nicety of adjustment and pressure of the
roller A', while retaining it in the position it is set to. These edge running skew
rolls A and A', are driven at a high speed, so that their acting surfaces roll in opposite
directions against the bar a, as indicated by the arrows, through their bevel wheels, b',
and spur wheels 2, 62, gearing into and actuated by the pinions G¹ and G2 respectively,
secured on a single transverse first-motion shaft G carried in bush bearings 6" in
the lower back part of the two headstocks C. C', of the main bed frame C2 preferably
with side covers G1, for ease of removal and getting at the gearing on this and the
other shafts A". The pinion G2 which gears into the spur wheel 2 on the end
moving trunnion housing B1, B3, is made much broader than that G' of the stationary
trunnion B and roll A to allow of the said motion. This first motion shaft G, would
have a flanged or other coupling at G³ at one end, to be coupled to a shaft or line of
shafting G fitted in bearing blocks in a covered channel below the surface of the
floor, led to one side of the shop, to be actuated by any stationary engine for the
purpose, or from any other power-transmitting shafting of the works. A segmental
shect-iron case or other equivalent would preferably be fitted, and secured at its ends
over the top stays c c so as to cover in the two gap 64, 64, and spur wheel b² 62 working
within these on the neck boss " of each trunnion or swivelling housing B and B of
and carrying its skew or angling edge rolls A and A'. Two gaps are formed in
the underside of the central bored case C³, of the bed frame C2, (in which the open
cylindrical ends B and B₁ of the trunnion housings B, B2, and 132, 133, work, and just
under it) for two strong steel screws e² to work up through, secured on the centres
of a transverse horizontal spindles carried on bearings on each side of gaps cl,
and bed plate (3. Each screw c² works up into a parallel toothed segmental wheel es
formed on the under circumference of the trunnion housing B and B of each
roll A and A'; and according as either screw spindle is turned to the right or
left, it will swivel its roll A or A¹ to any desired angle to the bar a being rolled;
that is, with the shaft or axis A" of either roll A or A¹ parallel to, or at any
desired angle to the bar a being rolled by the two rolls A, A', as seen particularly
in Figures 3 and 4. The two screws c² have right and left hand threads, so that
when geared into parallel teeth, their spindles have their outer ends angled equally
towards each other, so as to be both geared together by spur pinions f2f2, and an
intermediate spur wheel below, so that when either spindle was turned, the
scrows c², c², would angle the rolls A, A', in reverse directions to each other. Each
screw spindle is actuated by bevel pinions preferably cast in one with the spur
pinions and keyed on their outer ends (beyond the spur wheels 2, 11, gearing
them together) and geared into corresponding bevel wheels, mounted loose by long
eyes on the first-motion side shaft G, with friction clutches f, on their adjacent ends,
actuated by a shifting double-cone reversing clutch f mounted on the centre of the
shaft G with driving feathers and slots at fall as seen particularly, in sectional plan
Figure 5, and shifted by a central groove and double-armed or fork shifting lever g
on a horizontal spindle g¹ below, mounted in bearings at g¹¹ so as to carry the inter-
mediate spur wheel gearing into the pinions, 2, between the screw spindles, f
A horizontal connecting-rod g³, jointed to the outer end of the lower arm g² of the

page_text: levers g g is led and connected at its other end to the lower short arm g of a vertical
band lever ',, fulcrumed by a strong stud at g to the bed frame C3 below the
floor =;
but projecting at above the frame at one side to be conveniently worked to
throw the coupling into either conical clutch f, and set its screw spindle for f
into gear with the first-motion shaft, and so angle both trunnion housings B and B
and their rolls A and A¹ more or less in opposite directions according as either
clutch f is thrown into gear; the screws e² and spindles thus also retaining the
housings B and B and rolls A and A' securely from shifting in the position they had
set them to. In some cases a disc wheel with holes in it may be fitted on one of the
screw spindles for using a lever in the holes to turn the screws c3 by band instead
of by the reversing clutch fand gearing hereinbefore described. To give great
steadiness and prevent all vibration of the raising and lowering water bod bearing
block D, D2, between the rolls A and A¹ under the various sizes of bars a being
rolled, it is made of an angled or inclined shape on the under side below the water
box part D, deep in the centre, and widest at the outer end, with planed surface for a
strong planed hollow wedge block D³ to be fitted to slide out and in under it on a
planed bearing grooved slide bed at C, in the centre of the lower strong bed
frame C, which would be fitted with a strong screw spindle D working in a collar
bearing block D secured in front of the wedge block D³ with the screw D4, working
in a screw bush D¹ fitted in a vertical retaining groove in the front end of the
wedge block D³. The screw D is turned by a round boss or head De, secured on
its outer end, with holes through it for inserting a rod or lever for turning the
screw to tighten up the wedge D³ under the bearing block D D² to the height it
was raised or set to all as shown more particularly in Figure 4; and the lever or
rod for so turning the screw D', may be passed through the holes in the boss D° into
a retaining hole in a fixed flange or projection D' on the bed (2 or collar bearing D³,
for the fixing of the screw D when tightened up as seen particularly in Figure 2.
Instead of using the wedge D³, for supporting the bed frame D D³, at its various
heights to suit the diameter of the bars a being rolled, an equivalent screw to D
might be used mounted vertically to work in a nut fitted in the centre of the bed-
fraine (2, and be turned by its boss so as to have the upper end of this spindle
bearing in a recess in the underside of the bed D, and so steady it at various
heights, substantially as described in reference to the wedge support D³.
In the general arrangement of my new or improved, edge rolling mill herein
described, I do not include as essential to the combination, the mode and means of
raising the horizontal rails E, E', which I have shown and profer, for guiding the
bars and tubes a to and from the rolling machine proper, fitted within the recess Z, Z',
as these rails E, E, may be constructed and raised and lowered in various other
ways equally suitable. But an improvement for guiding the bars or tubes a over
and against the vertical web H', of the guide angled rail or frame H, H', bolted to
the said or other bed plates E, E¹, used, shown in Figures 6 to 11 on sheet 5, consists
in mounting a number of lovers I, (with shifting guide plates or blocks 1', I",
bolted to their lower ends) on spindles I carried in bearings over the vertical
flange H, of the guide rail H, H. Each of these spindles 12 has also a horizontal
weighted arm or lever 13, mounted on it, so that when the spindles I are turned
so as to allow their levers to assume the horizontal position over the bar a, as
indicated in the Drawings and especially in Figure 9, the guide plate I, I", with
its curved front edge I presses or retains the bar or tube a against the vertical
face H of the guide rail HH', and the curved edge of the guide plate I¹, I¹¹,
allows the bar or tube a to enter underneath each guide plate as it advances; and
the shifting of the guide plate 1, I, on its lever I admits of taking in any size
of bar or tube a, the lower end of the plate I, 1", resting on the bed plate E, when
the bar or tube a is not present.
When the bar or tube a has to be removed laterally off its bed plate E, E¹, the
weighted lever 13 is turned to the opposite side and by the spindle 13 raises the levers
and guide plates I, 1, and allows the bar or tube a to be rolled away. It will be
understood, however, that in some cases, one spindle 12, might be used for the whole
B

page_text: of the guide bars, as dotted-in at I in Figure 7, and only require one tilting
weighted lover 13 for putting the whole of the guide levers I, I, into or out of
action.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I doclare that what I
claim is :-
First. The general construction, or arrangement and combination of the parts of
a machine or mechanism, with angling or skow rolls, and their carrying swivelling
and stationary housings and driving and shifting gear, with or without the guide
beds, in line between the rolls, for rolling, straightening, and finishing round metal
bars and tubes, substantially as herein described in reference to, and shown in, the
accompanying Drawings.
Second. In machines or mechanism with angling or skew rolls for rolling,
straightening, and finishing round metal bars and tubes, the mounting of the
rolls A, A', in swivelling hollow trunnion housings B to B, in stationary housing
frames C to C, so as to be driven within and oscillated with or by said trunnion
housings B to B3, substantially as herein described in reference to, and shown in, the
accompanying Drawings.
Third. In machines or mechanism, with angling or skew rolls, for rolling,
straightening, and finishing round metal bars and tubes, the arrangement of bevel
and spur gear for driving or rotating the rolls A A' on and within the said trunnion
housings B to B and C to C, in reverse directions from one main shaft, substantially
as herein described, in reference to and shown in the accompanying Drawings.
Fourth. In machines or mechanism with angling or skew rolls, for rolling,
straightening, and finishing round metal bars and tubes, the arrangement of reversing
clutch mechanism, and bevel and spur gear and screw spindles, for oscillating or
angling the hollow trunnion housings with their contained rolls in reverse directions,
within their stationary housing frame, substantially as herein described, in reference
to and shown in the accompanying Drawings and particularly in Figure 5.
Fifth. In machines or mechanism with angling or skew rolls for rolling, straightening,
and finishing round metal bars and tubes, the arrangement of centre screw mechanism
for setting and sifting the one trunnion housing B1, B3, and roll A' carried by it,
towards the other stationary one A, in their fixed housing frame C to C5 substantially
as herein described, in reference to and shown in the accompanying Drawings.
.
Sixth. In machines or mechanism with angling or skew rolls, for rolling,
straightening, and finishing round metal bars and tubes, the arrangement of adjustablo
hollow liquid trough, fitted with an adjusting scrow steadying arrangement, either
with or without an inclined wedge block below it, substantially as and for the purposes
herein described, in reference to and shown at D to D7 in Figures 1, 2, and 4, of the
accompanying Drawings.
Seventh. In machines or mechanism with angling or skew rolls, for rolling,
straightening and finishing round metal bars and tubes, the arrangement of guido
angled bars, in combination with tilting weighted levers with curved guide plates,
mounted on the bed guide rails, for guiding the bar or tube to and from the rolls,
substantially as herein described in reference to and shown in Figures 6 to 11 of the
accompanying Drawings.