Year: 1886

page_text: I, FRIEDRICH ROSENBAUM of 33 Bornstrasse, Dortmund, Prussia, in the Empire
of Germany, Engineer, do hereby declare the nature of my invention to be as
follows:-
:-
This invention relates to apparatus for automatically guiding or directing a wire,
rod or the like from one pair of rollers of a rolling mill to another pair.
In rolling mills, the rollers of which revolve at approximately equal velocities,
use has heretofore generally been made, for automatically guiding the rolled wire
rod or the like from the first pair of rollers to the second pair situated beside the
same and rotating in opposite directions, of rigid bent tubes which consist of one or
more parts either closed or partially opened, and are arranged in such a manner
that the loop produced can freely expand without being jumped. These devices
however are defective in that the pieces used for guiding the loop such as levers
or rolls, frequently refuse to act and require frequent repairs and constant
supervision.
By. the present invention these defects are obviated.
Behind the groove in the first pair of rollers is arranged a flexible wire guide.
This guide may consist of a number of conical tubes placed in the direction of the
travel of the wire, with the small end of one in the large end of the other; or of
one piece of elastic material.
The flexible guide terminates in a rigid tube, bent to the arc of a circle and
provided at one end with a wide opening, the other end being adjacent to the
grooves of a second pair of the rollers. The said two tubes accordingly form a
bend, the length and curvature of which depends on the distance apart of the
grooves of the two pairs of rollers to be operated in connection with each other.
Thus the wire leaving the first pair of rollers passes through the flexible guide and
the fixed tube to the second pair of rollers. But as the velocity of the two pairs of
rollers is equal and as the wire leaves the first pair of rollers at a greater velocity
than it is taken up by the second pair, a jumping or upsetting of the wire would
take place, if means were not provided for permitting the escape of the same.
this purpose, as soon as the wire is introduced between the second pair of rollers the
flexible wire guide is moved from its curved position into a vertical position. The
[PRI
For

page_text: wire is therefore free to form into a loop between the two pairs of rolls and is
conducted by means of the fixed tube to the second pair of rolls.
When the rear end of the wire has left the rollers the flexible guide is brought
back into the curved position and rolling can then be further continued.
The fixed tube can in some cases be made flexible or movable, and it is then,
while the wire is passing through the two pairs of rollers, in a similar manner to
the first mentioned flexible guide on the formation of the loop, brought into the
extended position, and after the wire leaves the second pair of rollers into the
original position.
If desired, the wire in its passage from one groove into another may be turned
through an angle of 90°.
The described device can be applied to any rolling mill with very little trouble,
and thus it is possible to greatly simplify the construction of the train of rollers, as
it is not possible to impart to the second pair of rollers a greater velocity than to
the first pairs in order to obviate the formation of the wire loop.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: Improvements relating to Mills for Rolling Wire and for similar
Purposes.
I, FRIEDRICH ROSENBAUM, of 33 Bornstrasse, Dortmund, in the Empire of
Germany, 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 apparatus for automatically guiding or directing a wire,
rod, or the like from one pair of rollers of a rolling mill to another pair.
In rolling mills, the rollers of which revolve at approximately equal velocities,
use has heretofore generally been made, for automatically guiding the rolled wire,
rod, or the like, from the first pair of rollers to the second pair situated beside the
same and rotating in opposite directions, of rigid bent.tubes, which consist of one
or more parts, either closed or partially opened and arranged in such a manner that
the loop produced between the pairs of rollers, owing to the wire or rod leaving one
pair faster than it is taken up by the other pair, can freely expand without being
jumped. These devices, however, are defective, in that the pieces used for guiding
the loop, such as levers or rolls, frequently refuse to act, and require frequent
repairs and therefore constant supervision.
By the present invention these defects are obviated, by means of the apparatus
hereinafter described.
In the accompanying drawing:-
Figure 1 is a view of two pairs of rolls with an automatic guide constructed in
accordance with this invention arranged between them.
Figure 2 is a view drawn to an enlarged scale illustrating a modification of the
said invention.
A and B indicate two pairs of drawing rollers, in connection with which is
arranged the tubular guide which consists of the flexible part C and the rigid
part D.
As shewn in Figure 1, this flexible part is composed of a number of conical tubes
placed in the direction of the travel of the wire, with the small end of one in the
large end of the other, and is arranged opposite the groove of the rollers A
The rigid tube is bent to the arc of a circle, and provided at one end with a wide
opening, the other end being adjacent to the rollers B.
;
The length of the tubes C and D) and the curvature of the latter depend upon
the distance apart of the grooves of the two pairs of rollers to be operated in
connection with each other. The wire leaves the first pair of rollers A, passes
through the flexible tube C and the fixed tube D to the second pair of rollers B.
As, however, the two pairs of rollers A, B have equal velocities, the wire leaves the
rollers A at a greater velocity than it is taken up by the rollers B. A jumping or
upsetting of the wire would thus take place, if means were not provided for
permitting the escape of the same. For this purpose I employ the guide hereinbefore
described. As soon as the wire after leaving the rolls A is introduced between the
rolls B, the flexible wire guide C, as the length of wire between the two pairs of

page_text: rolls increases, gradually moves from the position shown in full lines in Figure 1 to
that shewn in dotted lines at E. The wire is therefore free to form into a loop in
the space between the two pairs of rolls and is conducted by means of the fixed
tube D to the second pair of rolls B.
When the wire has left the rollers the flexible guide C can be brought back into
the curved position and rolling can then be continued.
In the modification represented in Figure 2 a fork K is arranged, between the
pair of rollers A and the flexible guide Č. This fork piece is suitably bushed with
a chilled cast-iron socket, and carries a clamp M which is adjustable by means of
two lateral handles. The clamp is fastened upon the roller table W by means of a
screw, and serves to hold the guide tube S which is situated directly behind the
rollers A and conducts the wire leaving the latter to the fork piece K to which the
flexible tubular guide C is joined.
On the tubes of the flexible guide C are formed lugs N, O to which correspond
the stops F, G. In the straight position of the flexible guide the lugs N bear
upon the stops F, whereas in the bent position the lugs O bear upon the stops G.
In this manner the several tubular sections of the flexible guide C are securely
held in one or the other position. On the free end of the flexible guide C, in
which end a chilled cast-iron bush is inserted, is arranged a projection P. This
projection engages with a slot Q in a plate R which carries the said flexible guide C
so that the latter must always turn in the same curve.
The rigid tube D has at its outer end a funnel-shaped mouth-piece H composed
of two parts, the front part being preferably made of chilled cast-iron. The
other end of the tube D is provided with a sleeve J having a chilled cast-
iron bush.
Between this sleeve J and the guide to the groove of the rollers B is inserted a
guide piece L, provided at either end with a chilled cast iron bush, and fixed upon
the roller table V.
The herein before described wire guide can be used not only for introducing a
square or round rod into an oval or flat groove, but also an oval or flat rod into a
square or round groove. In the latter case the rod must pass on edge into the
chilled cast-iron guide of the respective groove. The position of the flat or oval
rod causes it to be automatically guided, for, as soon as the said rod has left the
rollers A, it turns upon its edge in the bent parts of the tubes C and D as every
flat iron rod bent in a circular direction assumes the position which offers the least
resistance to the bending.
In order that the rod shall remain on edge in the straight part of the tube, the
latter, where the bent part joins the straight part, is contracted in such a manner
that the rod is compelled to remain on edge and to enter between the pair of
rollers B.
The fixed bent tube D can be made flexible or movable, if desired, and it then,
while the wire is passing through the two pairs of rollers and on the formation of
the loop, like the flexible guide C, assumes the extended position, and, after the
wire leaves the pair of rollers B, the original or circular position.
The described device can be applied to any rolling mill with very little trouble
and thus it is possible to greatly simplify the construction of the train of rollers,
as it is not possible to impart to the pair of rollers B, a greater velocity than to the
pair A in order to obviate the formation of the wire loop.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim ia
First. Apparatus for automatically guiding a wire, rod or the like, from one pair
of rollers of a rolling mill to another pair, the said apparatus being characterized
by the employment of a tubular guide formed in two parts, one of which is
composed of sections which are movable relatively to each other, so as to render it
flexible, while the other part is rigid or of which, both parts are flexible, so that

page_text: the wire or rod is permitted to pass out freely into the space between the different
pairs of rollers, substantially as described and illustrated in the accompanying
drawing.
Second. In the tubular guide C, D characterized in the preceding claiming
clause (a) the arrangement of the fork piece K having a clamp M and a guide
piece S; (b) the arrangement of the lugs N O and the stops F G on the tubular
sections of the part C; (c) the arrangement of the funnel-shaped mouth piece H
and the sleeve J on the part D, and of the guide piece L in proximity to the
rollers B, essentially as shewn and described.
Third. In tubular guides for guiding a wire or rod from one pair of rollers of a
rolling mill to another pair, which guides are partly curved and partly straight,
the contraction of the straight part for the purpose of maintaining on its edge an
oval or flat wire or rod, (which during its passage through the bent part of the
guide is of itself placed on edge) on leaving the curved part of the tubular guide.
and until its introduction into the groove of the rollers, essentially as represented
and described.