Improvements in Rolls for Rolling Mills.
Year: 1894

page_text: Date of Application, 28th June, 1894-Accepted, 4th Aug., 1894
COMPLETE SPECIFICATION.
Improvements in Rolls for Rolling Mills.
.
I, OTTO KLATTE, Manager of the Firm of Walzwerk Germania, Neuwied on
the Rhine, Germany, 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 above invention has reference to such rolls for rolling mills as consist of
a centre piece revolving on an axis which is enclosed by two outer discs or wheels,
and connected with these by means of screw bolts going through them. Among
these rolls, there are some the centre piece of which consists of a central disc
with a sort of tyre ring attached to it and two side discs. These last named rolls
are the kind on which my invention is based.
The object of this invention is to avoid the renewal of the whole of the tyre ring
when the latter is injured in one or more portions of its operative surface.
I attain this object by separating the tyre ring into a number of equal or unequal
sized pieces and fastening these pieces on the circumference of the central disc in
such a manner as to be interchangeable.
The drawings annexed will enable my invention to be distinctly understood.
Figure 1 is a side view of a roll constructed in accordance with this invention.
Figure 2 is a perpendicular section through this roll.
Figure 3 is a view on a larger scale of a part of the circumference of the roll
partly in section through line 1-1 of Figure 4.
Figure 4 shows also on a larger scale a side view of one portion of the roll partly
in section.
Figure 5 is a transverse section in the direction of line 2-2 of Figure 4.
1 is the central disc fitted on the axis of the roll. This central disc is formed
with a deep groove around its circumference, or the groove may be formed by two
plates being connected to the central disc 1 as shown by dotted lines 4. 5. In this
cylindrical groove of the central disc there is a dove tail groove & Figures 2 and 5.
a, a, are the pieces into which the tyre ring is divided. These pieces a have at
their foot the dove tail shaped fillets corresponding to the groove b by which they
are fastened into the groove and held firm on the central disc 1. In order to be
able to bring the pieces a into the central disc 1, I cut away a portion of the
wall 3 of the grooves, and provide a locking piece c which can be fitted into the
recess in the grooves and held in position by pins or wedges d. Upon removing
this piece c, the segments of the tyre are passed sideways through the opening thus
made in one edge of the central piece, and then slid along the grooves to their
respective places, the dovetail portion of the segment engaging the dovetail portion
of the groove to hold it firmly in place. After the last piece is passed in the
grooves, the locking piece..c is put in place, and then the pins or wedges d,
Figures 4 and 5 are driven in, whereby on the one hand the locking piece is firmly
secured, and on the other hand the pieces a are insured against displacement on
the centre piece.
The central discs with the segmental tyre and locking plate are held in place by
side plates and screw bolts, as shown in Figure 2.
The drawings illustrate a roll as used for the manufacture of chains from one
piece of metal but my invention can be applied to rolls for other purposes.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Providing the centre niece of a roll for rolling mill with
a
Anmaskin

page_text: rim made of a number of pieces or segments, and firmly fixing same on the roll
in a radial direction, and at the same time preventing displacement on its
circumference, substantially by the means and in the manner described, and as
illustrated by the annexed drawings.
DL ]
T... lan:
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Otto Klatte.