Improvements in Rolling-mill Machinery.
Year: 1890

page_text: Date of Application, 8th Mar., 1890
Complete Specification Left, 6th Dec., 1890-Accepted, 10th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Rolling-mill Machinery.
I, GEORGE TOSH, of Millrig Place, Motherwell, in the County of Lanark, North
Britain, Engineer, do hereby declare the nature of this invention to be as follows,.
that is to say -
My said invention has for its object to provide rolling mills for operating on
steel or iron ingots, slabs, blooms, or bars, with improved, simple, and convenient
machinery for moving the metal masses or pieces transversely and for turning thom in
connection with feed rollers on which they are moved to and from the rolls.
In carrying out my invention I arrange traversers or laterally moving frames
sliding on guides or fitted with wheels to run on rails, each traverser being between
two adjacent feed rollers. There may be two or more traversers on each side of the
rolling mill two being sufficient for cogging or roughing mills, whilst more are
required for mills in which the metal is rolled into bars. Each traverser has mounted
on it in journals a combined pusher and tilter, hereinafter termed a rocker, which is
made with arms extending from its axis at right angles to each other, the parts of the
arms near the axis being in some cases recessed to accomodate some sections of bars.
Each rocker is also made with a segmental grooved pulley rim to which the ends of
a wire rope or chain are fixed. Or two short chains or ropes fixed to the pulley rim
may be attached to a continuous chain or rope passing under the rocker. At one
side the rope passes to the upper side of a barrel on a horizontal shaft at right angles
to the feed rollers; and at the other side the rope passes round a guide pulley and
returns across to the lower side of the same barrel. Each traverser has similarly
fixed to it the ends of a chain or wire rope which at one end proceeds to the upper
side of a barrel on a second horizontal shaft parallel to the first, the rope proceeding
at the other side to a guide pulley and returning thence to the under side of the
barrel. The two shafts have barrels for the several traversers and rockers, and gearing
is provided for driving them from a steam engine or other motor, together with
clutches for engaging and disengaging the shafts as required. The clutch for
controlling the tilting movement is by preference constructed with a stop limiting the
extent of such movement to a quarter of a turn of the rockers. When a mass, or
piece, or bar of metal is to be tilted or turned over the traversers are brought under
it with one arm of each rocker horizontal and under it; the rockers are then turned
by means of their several ropes and they tilt the mass, piece, or bar as required, the
ropes moving the traversers-being then held fast. When a mass, or piece, or bar of
metal is to be moved across from one part, or groove of the rolls to another, the
ropes of both the traversers and their rockers are moved together, with one arin of
each rocker pushing against the side of the mass, piece, or bar.
With the simple arrangements described the various movements can be effected
conveniently and expeditiously.
Did tha
1 Mauch 1900
EDMUND HUNT,
Anglicant's A mont
COMPLETE SPECIFICATION.
Improvements in Rolling-mill Machinery.
I, GEORGE TOSH, of Millrig Place, Motherwell, in the County of Lanark, North
Britain, Engineer, 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, that is to say :-
My said invention has for its object to provide rolling mills for operating on steel

page_text: or iron ingots, slabs, blooms, or bars with improved, simple, and convenient machinery
for moving the metal masses or pieces transversely, and for turning them in connection
with feed rollers on which they are moved, to and from the rolls.
In carrying out my invention I arrange traversers or laterally moving frames on
guides, or fitted with wheels to run on rails, each traverser being between two adjacent
feed rollers. There may be two or more traversers on each side of the rolling mill,
two being sufficient for cogging or roughing mills, whilst more are required for mills
in which the metal is rolled into bars. Each traverser has mounted on it, on
journals a combined pusher and tilter, bereinafter termed a rocker, which is made
with arms extending from its axis at right angles or nearly so to each other.. The
traversers and rockers are moved by means of wire ropes or chains, from gearing
provided with suitable reversing and other parts and worked by means of a steam
engine or other suitable motor.
And in order that my said invention and the manner of performing the same may
be properly understood, I hereunto append two sheets of explanatory drawings to be
horeinafter referred to and showing examples of my improved apparatus.
Figure, 1, on Sheet, 1, of the drawings is a plan showing one traverser with parts
connected with it; and Figure, 2, is-a-sectional elevation corresponding to Figure, 1.
Figure, 3, shows the traverser in transverse vertical section, together with end
elevations of feed rollers which are shown in plan in Figure, 1. Figure, 4, on
Sheet, 2, is a vertical section of a rocker with part of a traverser. Figures, 5, and 6,
are a plan and a face view of a clutch block; and Figures, 7, and 8 are a side
elevation, one half in vertical section, and a face elevation of a spurwheel and clutch
details forming part of the gearing. The figures, on Sheet, 2, are drawn to an
enlarged scale. In these drawings the same reference numerals are used to mark the
same or like parts wherever they are repeated.
The traverser, 11, is a narrow horizontal frame, consisting of side cheeks fixed
together with blocks between them at the ends the sides or cheeks being made with.
ribs to rest and slide on-horizontal: guide rails, 12, which are fixed so as to guide the
traverser, 11, between two adjacent feed rollers, 13. Within the traverser there is
mounted on journals a rocker, 14, formed with two arms, 15, nearly at right angles
to each other. The rocker arms, 15, may be made with straight surfaces extending
from their outer ends.completely to the centre as shown in Figure, 2; or cavities may
be formed in them near the centre, as shown in Figure, 4, to suit some sections of
bars. The rocker, 14, is made with a two-grooved segmental polley rim, 16, and
the ends of a wire rope, 17, are fixed to the rocker so as to lie more or less in the
pulley grooves according to the position of the rocker. At one side the wire rope, 17,
passes to the upper side of a barrel or pulley, 18, on a horizontal shaft, 19, at right
angles to the feed rollers, 13; and at the other side the rope, 17, passes round a guide
pulley, 20, and returns across to the lower side of the same barrel or pulley, 18.
Each traverser, 11, has similarly fixed to it the ends of a chain or wire rope, 21, which, at
one side, proceeds to the upper side of a barrel or pulley, 22, on a second horizontal
shaft, 23, parallel to the first, 19, the rope, 21, proceeding at the other side to a guide
pulley, 24, and returning thence to the under side of the barrel or pulley, 22. The
two shafts, 19, 23, have barrels or pulleys, besides those, 18, 22, for other traversers
and rockers besides those shown; and the shafts are geared together by means of
spurwheels, 25, 26, which are arranged to burn in the same direction by the inter-
position of a pinion, 27, with which both are in gear. The shaft, 19, is the first-
motion shaft, and the other shaft, 20, is put into gear with its spurwheel, 26, by one
or other of two clutches, 28, 29, which are fitted with grooves and feathers to the
shaft, and are movable along it by hand levers, 37, centred upon a bracket, 30. The
shaft, 23, has also fast on it a brake pulley, 31, to which a friction strap (not shown)
is applied for controlling the movements. The motion of the shaft, 19, is reversed
at the driving engine or motor, or by means of any suitable intermediate reversing
gearing.
The movable clutch, 28, shown in Figures, 5, and 6, is the one shown at the
right-hand side of Figure, 7; and Figure, 8, represents the right-hand face of the

page_text: spurwheel, 26, as it is shown in Figure, 7. In Figure, 6, the clutch, 28, is delineated
as turned over from right to left, from its proper position relatively to the spur-
wheel, 26, as shown in Figure, 8. Parts with which the clutches, 28, 29, engage are
formed in a centre piece, 32, made in halves bolted together and having the spur-
wheel, 26, keyed upon it, but being itself loose on the shaft, 23. The clutch, 28, is
made with four ordinary teeth, 33, which when the clutch is closest to the wheel, 26,
engage with counterpart teeth, 34, in the centre piece, 32; and when the clutch is
moved away from the spurwheel sufficiently for those teeth, 33, 31, to clear each
other, a pair of outer teeth, 35, on the clutch, 28, remain still in position to engage
with a pair of outer teeth, 36, on the centre piece, 32. These outer teeth, 35, 36, are
shaped and arranged to allow of a certain limited relative movement between the
spurwheel, 26, and the clutch, 28, and shaft, 23, such limited movement corresponding,
allowance being made for the intervening parts, to about a quarter of a turn of the
rocker, 14. The clutch, 29, at the other side of the spurwheel, 26, and the other sido
of the centre piece, 32, are made like the clutch, 28, and parts with which it engages,
but disposed in a manuer to suit the motion of the spurwheel, 26, when reversed, and
so that when one clutch, 28, is not in position to engage closely with the centre
piece, 32, the other one, 29, can do so, and vice versa.
In working with the apparatus, if a mass of metal has to be turned a quarter over
and then moved transversely to another part of the rolls, the spurwheels, 25, 26, are
set in motion in the appropriate direction, without at first shifting the clutch, 28,
or 29, close in to the spurwheel, 26, and the shaft, 23, is prevented from turning by
applying friction to the brake pulley, 31. The result will be the pulling of the
rocker-turning rope, 17, whilst the traverser, 11, is held stationary, and the
rocker, 14, will be turned a quarter round. On this being accomplished the clutch 28,
or 29, will be moved close in to the spurwheel, 26, and then the shafts, 19, and 23,
will turn together and both ropes, 17, and 21, will act in concert to move the
traverser, 11, with its rocker, 14, transversely. In some casos the rocker, 14, may
have to be turned a quarter without tilting the metal mass, but merely in order to
put one of its arms in the right position for pushing the metal mass in the desired
direction.
With the simple arrangements hereinbefore described the various movements
required can be effected conveniently and expeditiously.
Having now particularly described and ascertained the nature of my
said inven-
tion and in what manner the same is to be perforined, I declare that what 1
claim is :-
1-The combination of parts forming as a whole my improved machinery for
moving and turning metal masses or pieces in connection with rolling mills sub-
stantially as herein before described.
2-In connection with rolling mills, the employment of traversers moved by means
of chains or ropes and appropriate gearing substantially as and for the purposes
herein before described.
3-In connection with rolling mills, the employment of rockers upon traversers,
such rockers being moved by means of chains or ropes and appropriate gearing sub-
stantially as and for the purposes hereinbefore described.
Dated this Fifth day of December 1890.
EDMUND HUNT,
Applicant's Agent.