Improved Apparatus for Moving Ingots or Blooms into Position for Passing through the Rolls of Rolling Mills.
Year: 1886

page_text: Improved Apparatus for Moving Ingots or Blooms into Position for
Passing through the Rolls of Rolling Mills.
I DAVID DAVY of Park Iron Works Sheffield in the County of York Engineer,
do hereby declare the nature of this invention to be as follows :-
This Invention relates to machinery for transferring large ingots or blooms from
one set to another of the grooves of rolling mill rolls and for turning the ingot or
bloom from the flat to an edge-wise position and vice versa. The machinery consists
of a set of lever arms projecting up between or in front and rear of the feed rollers so
as to act on the ingot in a transverse direction, the said lever arnis being operated
by hydraulic or steam cylinders arranged one above the other at one side of the set
of feeding rollers of the mill. The piston rod of the lower cylinder is connected
through a horizontal sliding cross-head and rods to the extreme lower centres of the
lever arms which are jointed to slides working along guides parallel to the axes of
the feed rollers. The piston rod of the upper cylinder is similarly connected to the
lever arms at a suitable distance from the lower centre. The cylinders are provided
with valves under the control of an attendant whereby the pistons may be caused to
move in the same or opposite directions either simultaneously or independently
according as the lever arms are to be moved bodily across the set of feed rollers in
either direction without being inclined from the vertical, or to be caused to assume an
angular position. The angular motion of the levers is limited by stops. By this
arrangement, an ingot or bloom may be moved bodily upon the rolls transversely to
its length in either direction, and by the action of inclining the levers may be turned
up on edge. The bloom, having been so turned up on edge it is passed through the

page_text: rolls, and the levers meanwhile, advanced to such a position that when the bloom is
returned through the rolls the levers will be on the opposite side of it, and so be able
to perform the same operation on the ingot or bloom but in the contrary direction.
The turning up of the ingot on edge is effected when it is resting on the smaller
diameter of the feed rollers near their ends, and with the aid of a fence fixed above
the ends of the rollers, said fence having gaps in it to allow the lever arms to pass
beyond it.
DAVID DAVY.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.
COMPLETE SPECIFICATION.
Improved Apparatus for Moving Ingots or Blooms into Position for
Passing through the Rolls of Rolling Mills.
1 DAVID DAVY of Park Iron Works Sheffield in the County of York 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:
This Invention relates to machinery applied in connection with the feed rollers of
a rolling mill for traversing a large ingot or bloom laterally upon the feed rollers,
and for turning it from the flat to an edge-wise position and vice versa in and for the
purpose of transferring it from one set to another of the grooves of the rolling mill
rolls. The machinery consists of a set of lever arms projecting up between or in
front and rear of the feed rollers of the rolling mill so as to act on the ingot in a
transverse direction the said lever arms being operated by hydraulic or steam
cylinders whose piston rods are connected to the levers through sliding cross-heads
and connecting rods, the points of connection being respectively at the lower ends of
the lever arms and at intermediate points in the length of the levers. The pistons
may be caused to move simultaneously or independently in the same or in opposite
directions, according as the lever arms are to be moved bodily across the set of feed
rollers without being inclined from the vertical or are to be caused to assume an

page_text: angular position. As the free ends only of the arms, project above the level of the
feed rollers, and their operating gear is wholly below, an ingot or bloom may be
moved laterally in either direction upon the feed rollers (that is to say bodily in a
direction transverse to its length) and may be turned up on edge or laid down flat, as
may be required, by the same pair of arms.
Reference is to be had to the accompanying drawings forming part of this
Specification; wherein figures 1, 2, and 3, are elevations, and figure 4 a plan, of the
apparatus of my Invention applied to the feed rollers of a rolling mill. Figures 5, 6,
7, and 8, illustrate the operations of traversing and turning an ingot or bloom. The
same letters of reference indicate the same parts in all the figures.
A are the ordinary feed rollers upon which the ingot or bloom is received,
preparatory to being passed or repassed between the rolling mill rolls B. All these
rollers are of the usual form, and are mounted and operated in the usual way.
CC are a pair of lever arms, working across between the feed rollers. They are
jointed at their lower ends c to slides d working along guide rails e beneath and
parallel to the axes of the feed rollers and extending to a sufficient distance beyond
their standards to permit of the necessary traversing motion of the levers. To the
lower end of each lever, preferably to the lower centre c, is jointed a connecting rod f
the two rods being jointed at their other ends to a cross-head F provided with shoes
which slide along the same guide rails e, and to the centre of this cross head is
connected the piston rod of a steam or hydraulic cylinder F¹. To a point in the
length of each lever arm C, at a suitable distance from its lower centre, is jointed a
connecting rod 9, these two rods being jointed at their other ends to a second cross-
head G sliding over the first, the independent motion of the upper cross-head, and
consequently the angular motion of the levers C, being limited by the one cross-head
abutting against the other. To the middle of this cross head is fixed the piston rod of
another steam or hydraulic cylinder G¹.
The cylinders and cross heads are arranged at one side of the set of feed rollers A
and the former are provided with valve gears under the control of handing levers,
whereby the pistons of the two cylinders may be made to move in the desired
direction. At each side of the set of feed rollers, a fence 1 is provided for a purpose
hereafter described, these fences being near the ends of the rollers A and having
gaps in them to permit the passage of the lever arms C across and beyond them.
The ingot may be placed on the feed rollers, either on edge or flat, previous to
taking its first pass through the rolls, and be turned from an edge to a flat position
and from a flat to an edgewise position, in the manner following ;-Assuming the
bloom to be run on edge on to the small part of the feed rollers at the one end, as shewn
in figure 2, the lever arms C being in an upright position alongside of it, by moving
the upper cross-head G forwards and the lower one F backwards, the levers will be
thrown into an inclined position, as in Figure 5, and the lower edge of the ingot
coming at same time against the adjacent shoulder of the feed rollers, it will be tilted
over flat upon the feed rollers. Or, the levers may be made to assume an angular
position, the reverse of that described, in which case the bloom will be gently lowered
from an edge to a flat position, as shown in figure 3. By suitably moving the cross-
heads, the levers may then be brought upright and moved across in that position, so
as to carry the bloom laterally upon the feed rollers until it is in the proper position
for being rolled on the flat. After this is done, and the bloom is received back again
upon the food rollers it may be turned up on its other edge by first inclining the
levers, as shewn in figure 6, by causing the lower cross-head to move in advance of
the upper one and then moving the cross-heads forward together, until the lower
edge of the bloom rests upon the smaller part of the feed rollers near their other ends,
and is forced against the adjacent fence I. By then bringing the levers upright, by
moving the cross-heads in opposite directions, the bloom will be reared on edge, as in
figure 7. The bloom is then passed again through the rolls B, and before it is
returned on to the feed rollers A, the levers are advanced still further and pass
through the gaps in the fence, so that when the bloom is returned, the levers will be

page_text: at the opposite side of it, as in figure 8, and so be able to perform the same operations
of shifting and turning the ingot or bloom, but in the contrary direction to that above
described.
I have described the use of two levers C, acting on the ingot or bloom at suitable
points in its length, but more than two may be used, if required, according to the
length and weight of the ingot.
Having now particularly described and ascertained the nature of the said Invention
and in what manner the same is to be performed, I declare that what I claim is ;-
1. The employment, in connection with the feel rollers of a rolling mill, of a single
set of lever arms and of independent power operated sliding cross heads connected to
the lever arms at points below the upper level of the feed rollers, the free ends of the
lever arms projecting up and moving between the feed rollers, so as to be adapted to
act on the ingot or bloom at either side thereof, substantially in the inanner and for
the purpose herein specified.
2. The combination of lever arms, sliding cross heads, guides, cylinders, and fences,
arranged and applied to work in connection with the feed rollers of a rolling mill,
substantially as shewn and described, for the purpose specified.
Dated this 22nd day of April 1887:
D. DAVY.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.