Improvements in Ingot and like Manipulating Apparatus for Rolling Mills.
Year: 1899

page_text: Date of Application, 21st Aug., 1899
Complete Specification Left, 18th May, 1900-Accepted, 18th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in Ingot and like Manipulating Apparatus for Rolling
Mills.
I, HUGO SACK, Mechanical Engineer, of Rath, near Düsseldorf, Rhenish
Prussia, do hereby declare the nature of this invention to be as follows:-
The present invention relates to appliances for turning over and shifting
ingots of metal before and after their passage through the consecutive grooves
of the rollers of a blooming mill, which operation is usually performed by
tools mounted on a horizontal platform, which is pushed forward and backward
underneath the live rollers of the rolling mill.
In the apparatus hitherto known the turning tools generally extend upward
in the interstices or spaces between the live rollers, and the ingot or piece
of metal emerging from the rolling mill is grasped at one corner by the
turning tool and tilted, while the turning tools perform a vertical motion.
The shifting of the ingot to the next groove is effected by the subsequent
horizontal motion of the apparatus. The lifting of the turning tools may
be effected by lifting the rails on which the apparatus is running, in which
case the said rails are united on a platform having under its centre a hydraulic
ram, or the turning tools may be extended or stretched upward from the hori-
zontal platform which runs on stationary rails.
The last problem, however, involves complications which reduce the relia-
bility of action.
As sparks or red hot scales which separate from the hot metal are con-
stantly dropping between the live rollers, and also lumps, which sometimes
detach themselves from the ends of the ingots, these appliances are frequently
getting out of order, moreover the underground arrangement prevents the easy
cleaning of the pit under the rollers from red hot scales, and it renders repairs
of the apparatus itself very troublesome. It must therefore be considered an
important improvement in the present apparatus, that the pit between the
live rollers remains perfectly free.
The turning appliance chiefly consists of a set of strong levers moveable in
vertical planes between the consecutive pairs of rollers, each lever being situated
between two pairs of rollers and adapted to move up and down by turning on a
fulcrum secured to a common cross beam placed at right angles to the axis of
the rollers. The said cross beam is situated on one side of the rolling mill,
that is to say, near one end of the roller axes, while the free ends of the turn-
ing levers are situated on the opposite side of the rolling mill, that is near the
opposite ends of the roller axes."
The said cross beam, together with the turning levers pivoted to the same,
is moveable parellel to the axes of the rollers, between a pair guides; its
motion is produced by a hydraulic ram connected with the cross beam, and
serves to transport the ingots or pieces of metal between the consecutive grooves
of the cogging rolls, while for turning the ingots or pieces of work, the said

page_text: turning levers are lifted at their free ends by means of a vertically moveable
hydraulic ram which carries a cross bar guided vertically by a pair of guides.
The free end of each turning lever is supported and guided by a shoe or roller
mounted on the cross bar and is adapted to slide on the same.
Each turning lever has in its straight upper face two approximately rectan-
gular recesses or gaps adapted to receive the ingots, and its straight upper face
is armed with a plate adapted to serve as a platform or guard between live
rollers, which prevents fragments of the ingot from falling into the pit. Such
fragments or particles of the ingot moulds which frequently detach themselves
during the process of rolling, may then be removed by a pair of tongs, before
they drop down.
Before the ingot emerges from the mill, the lifting ram, together with the
cross bar supported by the same is caused to assume its lowest position, in
which position the said guard plate prevents fragments of the ingot from
'falling down, as mentioned above.
.
If the attendant expects, for instance, the ingot from the first and widest
groove, he places the horizontal ram and consequently the turning levers in
such a position, that the front edge of the largest of the two gaps will be situated
near the front edge of the first groove of the roller, after which the levers are
lifted by means of the vertical ram. The ingot is thereby turned 90°, and drops
into the first gap of the lever, where it is prevented from tilting a second time.
Subsequently the hydraulic transporting mechanism is set in motion in the
opposite direction, so as to deliver the ingot in front of the following groove, and
finally the vertical hydraulic ram is lowered.
During the time that the ingot is being displaced from one groove or caliber
to another, it need not, therefore, be pushed forward along the live rollers,
an operation which should be avoided, as it tends to loosen the foundation of
the framework.
For working with the smaller grooves or caliber, a second gap or cranked
portion has been formed in the turning levers as mentioned above. In case
a lever breaks or is strongly bent out of shape, it can be quickly replaced by a
spare part, because it can be laid in from above, being arranged above the
frame of the live rollers, and above the driving shaft.
This, together with the easy accessibility of the hydraulic cylinders, and
accessibility of any parts situated underneath the rollers, is the principal advan-
tage of the present arrangement.
Dated this 21st day of
1000
COMPLETE SPECIFICATION.
Improvements in ingot and like Manipulating Apparatus for Rolling
Mills.
I, HUGO SACK, Mechanical Engineer, of Rath, near Düsseldorf, Rhenish
Prussia, 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:-
The present invention relates to appliances for turning over and shifting
ingots of metal before and after their passage through the consecutive grooves
of the rollers of a blooming mill, which operation is usually performed by

page_text: tools mounted on a horizontal platform, which is pushed forward and backward
underneath the "live" rollers of the mill.
In the apparatus hitherto known the turning tools generally extend upward
in the interstices or spaces between the live rollers, and the ingot or piece
of metal emerging from the rolling mill is grasped at one corner by the
turning tool and tilted, while the turning tools perform a vertical motion.
The shifting of the ingot to the next groove is effected by the subsequent
horizontal motion of the apparatus. The lifting of the turning tools may
be effected by lifting the rails on which the apparatus is running, in which
case the said rails are united on a platform having under its centre a hydraulic
ram, or the turning tools may be extended or stretched upward from the hori-
zontal platform which runs on stationary rails.
The last problem however involves complications which reduce the relia-
bility of action.
As sparks or red hot scales which separate from the hot metal are con-
stantly dropping off between the live rollers, and also lumps, which sometimes
detach themselves from the ends of the ingots, these appliances are frequently
getting out of order, moreover the underground arrangement prevents the easy
cleaning of the pit under the rollers from red hot scales, and it renders repairs
of the apparatus itself very troublesome. It must therefore be considered an
important improvement in the present apparatus, that the pit between the
live rollers remains perfectly free.
In the accompanying drawings, Fig. 1 is a longitudinal section, and Fig. 2
a plan of an apparatus embodying my invention. Fig. 3 is a detail view.
The turning appliance chiefly consists of a set of strong levers d
moveable in vertical planes between the consecutive pairs of rollers, each lever
being situated between two pairs of rollers and adapted to move up and down
by turning on a fulcrum secured to a common cross beam a placed at right
angles to the axis of the rollers. The said cross beam is situated on one
side of the rolling mill, that is to say near one end of the roller axes, while the
free ends of the turning levers are situated on the opposite side of the rolling
mill, that is near the opposite ends of the roller axes.
The said cross beam a, together with the turning levers d, is moveable parallel
to the axes of the rollers, between a pair of guides n, its motion is produced by
a hydraulic ram or piston engine b, c connected with the cross beam a and
serves to transport the ingots or pieces of metal between the consecutive grooves
of the cogging rolls, while for turning the ingots or pieces of work, the said
turning levers are lifted at their free ends by means of a vertically moveable
hydraulic ram f which carries a cross bar g guided vertically by a pair of
guides e. The free end of each turning lever is supported and guided by a shoe
or roller mounted on the cross bar and is adapted to slide on the said shoe.
Each turning lever has in its straight upper face two approximately rectan-
gular recesses or gaps , d2 adapted to receive the ingots, and its straight
upper face is armed with a plate i, Fig. 3, adapted to serve as a platform or
guard between live rollers, which prevents fragments of ingots from falling into
the pit. Such fragments or particles of the ingot moulds which frequently
detach themselves during the process of rolling, may then be removed by a
pair of tongs, before they drop down.
Before the ingot emerges from the mill, the lifting ram f together with the
cross bar is caused to assume its lowest position, in which position the said
guard plate i prevents fragments of the ingot from falling down, as mentioned
above.
If the attendant, expects for instance, the ingot from the first and widest
groove, he places the horizontal ram and consequently the turning levers in
such a position, that the front edge of the gaps will be situated near the
front edge of the first groove of the roller, after which the levers
are lifted by means of the vertical ram f. The ingot is thereby

page_text: turned 90°, and drops into the first gap of the lever, where it is prevented from
tilting a second time. Subsequently the hydraulic mechanism is set in motion
in the opposite direction, so as to deliver the ingot in front of the following
groove, and finally the hydraulic ram f is lowered.
During the time that the ingot is being displaced from one groove or calibre
to another, it need not, therefore, he pushed along the live rollers, an operation
which should be avoided, as it tends to loosen the foundation of the framework.
For working with the smaller grooves or caliber, a second gap or cranked
portion has been formed in the turning levers, as mentioned above. In case
a lever breaks or is strongly bent out of shape, it can be quickly replaced by
a spare part, because it can be laid in from above, being arranged above the
frame of the live rollers, and above the driving shaft.
This, together with the easy accessibility of the hydraulic cylinders, and ac-
cessibility of any parts situated underneath the rollers, are the principal advan-
tages of the present arrangement.
In the drawings ", " represents the main frame, and w indicates the driving
shaft for the live rollers, connected with the axles of the same by bevel wheels
as indicated in Fig. 2. It will be noticed, that the levers d are situated above
the frame and shaft w.
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. Ingot-manipulating apparatus for rolling mills, having the distinctive
features firstly that levers d are pivoted to a horizontally moveable cross bar a
situated on one side of the live rollers and are adapted to slide or roll on
a vertically moveable cross-bar situated on the opposite side of the live rollers;
secondly, that levers are arranged above the frame and the driving shaft w
of the live rollers: and thirdly, that levers d may be armed with plates 7 adapted
to serve as a guard between the rollers of the rolling mill at those places where
the straight upper face of the lever d is not interrupted by crank like recesses.
2. Ingot-manipulating apparatus for rolling mills constructed and adapted to
operate, substantially as described and shown by the drawings.
Dated this 16th day of May 1900.
FAIRFAX & WETTER,
Agents, 37 and 39, Essex Street, Strand, London.