Improvements in Apparatus for Turning-over Ingots or Slabs on Feed Rollers, Traversing and Guiding them in Cogging or Rolling Mills.
Year: 1887

page_text: Date of Application, 23rd May, 1887
Complete Left, 23rd Feb., 1888
Complete Accepted, 6th Apr., 1888
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Turning-over Ingots or Slabs on
Feed Rollers, Traversing and Guiding them in Cogging or
Rolling Mills.
I THOMAS WILLIAMSON Engineer 113 Kenmure Street Pollokshields in the County
of Renfrew, N.B. WALTER NEILSON and HUGH NEILSON Ironmasters Bothwell, in
the County of Lanark N.B. do hereby declare the nature of this invention to be as
follows
Improvements in apparatus for manipulating heavy masses of highly heated Steel
Ingots or Slabs before passing them through the rolls of a Cogging or Rolling Mill.
The Ingots are carried or driven to the mill rolls, on a set of live rollers placed on
either side of the Rolling Mill.
The Invention and apparatus referred to works along and between and under the
said live rollers in front of the mill, and are made in two double sets, one pair being
pushed along and between the live rollers from one side to the other.
And the other pair is pushed across from the opposite side, both sets travels nearly
the whole distance between the live roller frames, so that an Ingot or Slab, can be
turned over in either direction, and can be adjusted and held up on edge in any
position, and guide the Slab through any of the grooves in the rolls of the Rolling
Mill.
The turning over apparatus consists of two sets of carriages connected together and
worked in pairs.
Upon each carriages is mounted an hydraulic oscillating cylinder and Ram, the
cylinder works in trunnion bearings which form part of the carriage frame.
The water power or pressure is conveyed through a hole cast in the trunnion of
the hydraulic cylinder, which pressure forces the ram up through the required length
of stroke, while the ram acts as a connecting rod, and is jointed at the top end to a
lever-arm, by a knuckle joint. The lever-arm is one of the third order, the fulcrum
of which forins an axis around which the lever-arm is turned by the force of the ram
acting at the joint nearest the fulcrum-the fulcrum remaining stationary in relation
to the ram & cylinder on the carriage.
The lever-arm is in a horizontal position, when the ram is at the bottom end of its
stroke and it is free to pass clear underneath the Slab or Ingot while running on the
live rollers.
When the water pressure is applied, the rains push up the lever-arms, which turn
round on their axis, the outer onds of the lever-arms bear against the under side of
the Slab, and pushes or turns the Slab over on its edge or side as the case may be.

page_text: The lever-arms turning through an angle of ninety degrees (90°) are now in a
vertical position. The Slab can also be lowered or turned down from the vertical to
the horizontal position, or from on edge to the flat.
The lever-arins when in the vertical position, can be used to push the Slabs from
one end of the live rollers to the other.
And when the lever-arms are perpendicular, each pair can be set in any position
and any distance apart, to suit the thickness of the Slab which can be held on edge
from falling over, and at same time act as a guide to enter the end of the slab into
any of the grooves in the rolls of the Cogging or Rolling Mill as required.
There are two small rollers in each of the lever-arins which revolve at right angles
to the movement of the lever-arms.
These allow the Slabs to run freely accross the face of the lever-arms, without these
the lever-arms would get twisted and dragged out of their position through the friction
or rubbing of the rough hot Slabs against them.
The carriages are mounted on wheels or rollers and are supported, and roll on the
bottom flange of H-Beams provided for them. The rollers of the said carriage, work
in between the top and bottom flanges of the H-Beams and prevents the carriage from
getting tilted over by the rollers coming in contact with the top flange. Each pair of
the carriages with their oscillating cylinders and rams, Lever-arms &c. are connected
together by two water tube rods, one to each carriage, and firmly secured thereto.
The opposite ends are secured to a strong crosshead.
These tubes which are extended through the crosshead for a sufficient length, each
of them forms a telescopic pipe, for conveying the water pressure to the oscillating
hydraulic Cylinder and Ram, while they act as a guide in keeping the carriages and
crosshead in position, and from twisting.
The Telescopic pipes work in cylinders, having packing glands and are fixed to the
same foundation plate as the pushing Cylinder and Piston which is placed in the
middle, between them, and fixed to the foundation plates.
This is a water pressure cylinder having a piston which works in it, and a piston
rod which passes out through one end, which are provided with packing glands.
The opposite end of the Piston Rod is fixed securely to the middle of the crosshead
which connects the two carriages together.
This Cylinder gives the cross Traversing Motion to the carriages, which have the
tilting Cylinders Rams Levers &c. attached to them.
There is one pushing Hydraulic Cylinder to each pair of carriages with their tilting
Rams &c. one on each side of the live rollers which work in opposite directions.
Each pair of the tilting oscillating cylinders, have one hydraulic Slide valve with
hand Levers and sector plates-and each of the pushing cylinders are provided with
water valves and hand levers &c. by which they are handed and are under the control
of one operator.
The novelty claimed consists in the special arrangements of the mechanism for
tilting or turning over apparatus viz.; The lever-arms with their rollers the oscillating
Cylinder & Ram-connecting to the Lever Arms, and the manner in which they turn
upon a fixed axis, which are all mounted upon a moveable carriage.
The method of connecting the hydraulic cylinders, on the carriages by duplex tubes
acting as pusher rods, as well as Telescopic hydraulic water pipes.
The method of working a duplex set of Tilting Gear in opposite directions moving
from either side and turning over either way, holding up Slabs on edge in any
position and acting as guides to enter the Slabs on edge or flat, into any of the grooves
in the Rolls of the rolling Mill.
DL: 171 1
35
1000
THOMAS WILLIAMSON.
WALTER NEILSON.
HUGH NEILSON.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Turning Over Ingots or Slabs on
Feed Rollers, Traversing and Guiding them in Cogging or
Rolling Mills.
We THOMAS WILLIAMSON of Albany Drive, Rutherglen, in the County of Lanark
Engineer, WALTER NEILSON and HUGH NEILSON of Bothwell in the County of
Lanark, Iron Masters, 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 :-
Our invention relates to improvements in apparatus for tilting or turning over and
otherwise manipulating heated ingots or slabs prior to passing them through the rolls
of cogging or rolling mills and whilst they are being carried into the mill rolls on the
live rollers usually placed at either side of rolling mills.
As represented in elevation at figure 1 and in plan at figure 2 of the accompanying
drawings the improved slab tilting or turning over apparatus comprises two pairs of
carriages A A and B B' carried on wheels which run on rails so placed on the floor
immediately under the live rollers R that the carriages pass up between the live
rollers, the carriages A A', which lie between the first and third pair of live rollers
being connected and worked simultaneously from one end of the said rollers and the
carriages B B¹ which lie between the second and fourth pair of live rollers being
connected together and worked from the other end of the said rollers-On each
carriage is mounted an oscillating cylinder C provided with a ram D operated by
hydraulic pressure the cylinder being carried on trunnion bearings forming part of
the carriage frame and through which the water for operating the ram is admitted
from branch pipes d connected to a service pipe d¹. The ram D is jointed at its
upper end to a lever arm E connected to the carriage by a pin F which forms the
axis on which the said arm E is turned by the movement of the ram-The lever:
arm E lies horizontally when the ram is at the lower end of its stroke and in that
position it is free to pass clear under the slab or ingot carried on the live rollers-
When the water pressure is applied the rams D of either pair of cylinders are forced
up and turn the lever arms E on their axes to or nearly to the vertical position,
thereby raising and tilting or turning over on its edge or side the slab S under which
the lever arms E are brought by suitable movement of the carriages,A A¹ or B B¹.
The lever arms may also be raised to the vertical position whilst clear of the slab and
then used to push the slab from one end of the live rolls to the other by traversing
the carriages A A¹ or B P¹, and when the several lever arms are raised the
carriages A A, B B₁ may be brought into suitable positions to hold the slab on edge
between the pairs of lever arms E to prevent it falling or guide it to enter any of
the grooves in the rolls of the cogging or rolling mill, the lower roll T, of which is
indicated by dotted lines in figure 1.

page_text: In recesses formed in each of the lever arms E two or other number of small
rollers e are fitted to rotate at right angles to the movement of the lever arms, and
these rollers allow the slab to run freely across the face of the lever arms and prevent
them being dragged out of their position or twisted by the friction of the hot and
rough slabs rubbing against them in their movement over the live rollers.
The wheels of the carriages A A¹ B B¹ roll between the flanges of H beams G
which are used to prevent the carriages from being tilted, and the carriages are
traversed upon said beams as on rails by hydraulic gear consisting of two piston rods
or tubes H one for each pair of carriages secured at one end to a cross head I con-
necting the pair of carriages and at the other end having a piston or plunger fitted in
a hydraulic cylinder, which is operated to traverse the carriage A A¹ or B B' upon
the carrying rails or beams G as required. The hydraulic cylinder used to traverse
the one pair of carriages is fitted at one end of the live rollers and a separate cylinder
for working the other pair of carriages is fitted at the opposite end.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The arrangement and combination of parts constituting the improved apparatus
hereinbefore described for tilting or turning over and otherwise manipulating slabs
and ingots.
2. The combination of the carriages A A' B B¹ connected together and arranged
to operate in pairs from opposite ends of live rollers on slabs or ingots carried thereby
substantially as herein before described.
3. In apparatus for tilting or turning over or otherwise manipulating slabs and
ingots a travelling carriage carrying an oscillating cylinder arranged to operate a
lever arm acting on the slab or ingot substantially as hereinbefore described.
4. The combination with the travelling carriage (A) of the oscillating cylinder C
ram D and tilting lever arm E substantially as described.
5. In apparatus for tilting or turning over or otherwise manipulating slabs and
ingots a tilting lever arm (E) provided with rollers (e) as and for the purpose
set forth.
Dated this Twenty second day of February 1888.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.