Improved Apparatus for Traversing and Turning Ingots and Blooms upon the Feed Rollers of Rolling Mills.
Year: 1888

page_text: Date of Application, 12th Dec., 1888
Complete Specification Left, 12th Sept., 1889-Accepted, 19th Oct., 1889
PROVISIONAL SPECIFICATION.
Improved Apparatus for Traversing and Turning Ingots and Blooms
upon the Feed Rollers 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:-
My Invention relates to improved apparatus for traversing and turning ingots and
blooms upon the feed rollers of rolling mills so as to bring them into suitable position
for passing through the different grooves of the rolls.
The apparatus consists of a set of Y shaped cradles projecting up between or in
front and rear of the feed rollers so as to act on the ingot or bloom at two or. more
points in its length, the said cradles being pivoted upon traversing slides so as to be
capable of oscillation for the purpose of turning the ingot or bloom and of a traversing
motion across the set of feed rollers for moving the ingot or bloom laterally
thereon.
The present invention consists in constructing each Y cradle of two separate
members or levers pivoted on a common fulcrum and acting together as one for the
purpose of turning or traversing the ingot or bloom but capable of being oscillated in
opposite directions for the purpose of lowering their upper arms below the level of
the feed rollers so that they may be moved in either direction beneath the ingot or
bloom as it lays on the feed rollers for the purpose of acting on the ingot or bloom to
traverse or turn it in either direction, or to turn it partly round two or more times in
the same direction.
In
The traversing and turning motions are obtained by separate hydraulic or steam
cylinders suitably arranged in relation to the feed rollers, the traversing motion of
the fulcrum being obtained by one cylinder and the oscillating motion of the two
members in the same or opposite directions as required, being obtained either by
separate cylinders or by one cylinder acting on the members in opposite directions
through the medium of a locking beam or lever coupled to the two members.
the former case, the cylinders which produce the oscillating motion also assist in, or
accompany, the traversing motion of the cradles but in the latter case the traversing
motion is independent of the cylinder which produces the oscillating motion of the
members. For this purpose, the rocking beam, above mentioned, is actuated through
the medium of gear operated by, but movable along, a shaft which is parallel with the
direction of traverse of the cradles, the traversing motion of the gear along this shaft
being produced either by a special cylinder or by the cylinder giving the traversing
motion to the cradles. This gear may consist of bevel segments, one of which is
fitted to slide along, but to be turned by, the shaft and the other is mounted in a frame
also fitted to slide along the shaft, the latter segment being fast on the axis of the
rocking lever.
La 1000

page_text: Improved. Apparatus. for Traversing and Turning Ingots and Blooms
upon the Feed Rollers 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 and in what manner the same
is to be performed, to be particularly described and ascertained in and by the following
statement:
My Invention relates to improved apparatus for traversing and turning ingots and
blooms upon the feed rollers of rolling mills so as to bring them into suitable position
for passing through the different grooves of the rolls.
The apparatus consists of a set of Y-shaped cradles projecting up between, or in
front and rear of, the feed rollers so as to act on the ingot or bloom at two or more
points in its length, the said cradles being pivoted upon traversing slides so as to be
capable of an oscillating motion for the purpose of turning the ingot or bloom and of
a traversing motion across the set of feed rollers for moving the ingot or bloom
laterally thereon.
The present invention consists in constructing each Y-cradle of two separate
members or levers which act together as one for the purposes of turning and traversing
the ingot or bloom, but are capable of being oscillated in opposite directions for the
purpose of lowering their upper arms below the level of the feed rollers so that they
may be moved in either direction beneath the ingot. or bloom without disturbing it as
it lays on the feed rollers, the object of so moving the cradles being to bring them into
position for acting on the ingot or bloom according as it is required to traverse or turn
it in the one or other direction or to turn it partly round two or more times in the
same direction.
Reference is to be had to the accompanying drawings forming part of this specifica-
tion, wherein figure 1 is a sectional elevation shewing the Y cradles in position for
passing beneath the bloom, whilst figures 2 and 3 shew the cradles and bloom in two
other positions. Figure 4 is a similar view to figure 1, of a modified arrangement;
figure 5 being a sectional plan thereof. The same letters of reference indicate similar
parts in all the figures.
A are the feed rollers of a rolling mill, the levers B B₁ with their tail pieces b b¹
constituting the Y-shaped cradle of which there would be two or more fixed upon a
suitable frame work or crosshead (as in my Patent No. 9515 of 1886 which shews the
cross head carrying the levers) and arranged to work between the said feed rollers,
the upper arms B B' projecting above the level of the feed rollers for acting on the
ingot or bloom in the manner described in the specification of former Letters Patent
granted to no and dated the 25th day of July 1888 No. 10,779. The two members
or levers B B are pivoted together on a fulcrum c carried by a slide C fitted to work
along guides arranged below the level of the feed. rollers parallel with the axes thereof
The two or more Y-cradles (of which one only is shewn) constituting the set move
together, the corresponding members of each being coupled to, and operated by, the
same rams or pistons.
The traversing motion is obtained by a hydraulic steam cylinder D suitably
arranged in relation to the feed rollers the piston or ram of the said cylinder being
connected with the slide C carrying the fulcrum c of the levers B B¹. The combined
or independent oscillating motions of the two members B B¹ may be obtained; as
represented in figures 1, 2, and 3, by separate cylinders E E' whose pistons are con-
nected to the lower ends b'b' of the two members B B¹ respectively so that by adjusting
the two pistons in relation to each other the lower ends 66' may be brought together,
as shewn in figure 2, and then by moving the pistons together the requisite turning
action will be given to the ingot. Or one cylinder F (see figure 5) may serve to
oscillate the members B B' in opposite directions so as to bring them to the bifurcated
form, through the agency of a rocking beam or lever G whose opposite ends g g¹ are

page_text: respectively coupled to the two members bb' the middle of the lever being coupled to
the piston or ram of a cylinder E2 by which the traversing and turning motion is
given to the gear next described.
The gear through which the rocking beam receives its oscillating motion is operated
by, but is movable along, a rock shaft H (see figure 5) which is parallel with the
direction of traverse of the cradles and is operated by the cylinder F. This gear may
consist of bevel segments I, K, one of which is fitted to slide along, but to be turned
by, the shaft H and the other is mounted in a frame also fitted to slide along the
shaft H,. the latter segment being fast on the axis k of the rocking lever G.
By means of the above described apparatus the ingot or bloom may be readily
turned a quarter round one two or more times in succession as may be required, the
arms of the Y-cradles being lowered below the level of the feed rollers, as seen in
figures 1 and 4, after each time they have so acted then traversed beneath the bloom
and caused to reassume the Y-form for again turning the bloom a quarter round,
and so on.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is ;
1. The herein described improved apparatus for traversing and turning ingots and
blooms, consisting of Y-shaped cradles each constructed of two pivoted members
adapted to be traversed and oscillated together as one, as described, the said members
being positively connected at their lower ends either to separate actuating pistons or
rams or to the same piston or ram through the medium of mechanism whereby motion
in opposite directions may be given to the two members, as specified.
2. In the herein described apparatus for traversing and turning ingots and blooms,
the combination with Y-shaped cradles constructed of pivoted members adapted to be
traversed, as described, of the rock lever and gear arranged and operating in conjunc-
tion with the traversing motion, substantially as described and illustrated with reference
to figures 4 and 5, for imparting oscillating motion in opposite directions to the two
members, as specified.
Dated this 12th day of Santember 1889