Year: 1899

page_text: Date of Application, 28th Dec., 1899
Complete Specification Left, 16th Jan., 1900-Accepted, 24th Feb., 1900'
I, JOSEF GIESHOIDT, Mechanical Engineer, of 67, Kreuzstrasse, Düsseldorf,
Germany, do hereby declare the nature of this invention to be as follows:-
This invention relates to improved means for rolling solid or hollow bars or other
objects and will be described with the aid of the accompanying drawings of
which Fig. 1 is a side elevation, Fig. 2 a sectional front elevation, and Fig. 3 a
sectional plan of a rolling mill embodying my invention.
The rollers w are arranged in a direction at right angles to the longitudinal
blank," is secured between
axis of the article being rolled. This article, or
two adjustable spindles a and b, one of which, where it is proposed to roll hollow
bodies, acts as a mandrel or core piece. Either or both of the spindles a and b
may be driven in any suitable manner.
In the construction here shown by way of example, one only of the spindles,
namely the spindle a provided with a longitudinal groove n, is driven from a
pulley m, fitted with a wedge or key k and so arranged as to admit of a sliding
displacement of the said spindle. The spindle a is further provided with a square
sleeve at, into which the blank" whereon a suitable projection is formed for
the purpose, is inserted; though it may be secured in position on the spindle by
any agency other than that of such sleeve and projection. The rolling mill shown
by the drawings comprises four rollers w (though more or less than four may
be employed if preferred), and they may be arranged in different planes according
to requirements. Also, the rollers may, by suitable mechanism, be moved farther
apart or closer together, and their relative position to each other may be varied
as required. The roller carriers t, in the arrangement here exemplified, are
provided with screw-spindles t' fitting into screw-nuts u. They also carry tooth
wheels z, all of which engage with the wheel r, which receives rotary motion from
the pinion c, whose shaft is fitted with a starwheel or crank handle. When
this shaft is turned to the right or to the left, the rollers are thereby brought
nearer to or farther away from each other and from the piece of work.
The operation is as follows:
To begin with, the rollers are moved apart, and the "blank" is fitted in
or on the spindle a. The latter is then set in rotary motion by means of a driving
blank." After
belt or the like, and the rollers are moved into contact with the
this the "blank" is wholly or partly slid in between the rollers, through an
adequate movement being imparted to the spindle or to the spindle a itself,
whichever meets the case; and this adjustment of the parts is repeated, whilst the
rollers are being moved closer together or further apart, as many times as may be
necessary to impart to the
the shape or configuration to which it is
desired to roll it out.
*
blank
"
Where it is intended to turn out hollow objects, the "blank" is passed through
between the transversely set rollers until the material of which it consists comes
to pass over or surround the spindle which is to serve as a core piece,--such
"blank" being at intervals moved backwards and forwards, while the rollers
are brought close together.
Owing to the improved arrangement of this rolling mill, the hollow space or

page_text: bore traversing the object being rolled may receive any desired shape or outline,
which in all cases will be identical with that of the core piece or mandrel, viz.,
either cylindrical as shown, or triangular, square, polygonal, helical &c. .Indeed
it may be conical if desired, or provided with an offset, so that one portion of
the bore may become wider than the rest.
The novel arrangement also permits articles of a conical external outline, or
bodies having enlargements, beads, grooves &c. around their outer surface, to be
rolled; it being only necessary for these purposes, correspondingly to adjust the
relative position of the rollers.
If preferred, the roller-supporting frame may be, adjusted during the rolling
operation, instead of the "blank,' as will be readily understood.
"
سماحة.
Dated this 28th day of December 1899:“
Improvements in Kolling Mills.
I, JOSEF GIESHOIDT, Mechanical Engineer, of 67, Kreuzstrasse, Düsseldorf,
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:―
This invention relates to improved means for rolling solid or hollow bars or
other objects and will be described with the aid of the drawings filed with the,
Provisional Specification, of which Fig. 1. is a side elevation; Fig. 2 a sectional
front elevation and Fig. 3 a sectional plan of a rolling mill embodying my
invention.
.
The rollers w are arranged in a direction at right angles to the longitudinal
axis of the article being rolled, the axis of each roller being situated in a plane
with the same, and forming approximately right angles with it. This article
or "blank," is secured between two adjustable spindles a and b, one of which,
where it is proposed to roll hollow bodies, acts as a mandrel or core piece. Either
or both of the spindles a and b, may be driven in any suitable manner.
"
22
In the construction here shown by way of example, one only of the spindles,
_ namely the spindle provided with a longitudinal groove n, is driven from a
pulley m, mounted on the spindle by means of a feather or keyk so as to admit
of a sliding displacement of the said spindle within the pulley. The spindle a is
further provided with a square sleeve a¹, into which the blank whereon a
suitable projection is formed for the purpose, is inserted; though it may be
secured in position on the spindle by any agency other than that of such sleeve
and projection. The rolling mill shown by the drawings comprises four rollers w
(though more or less than four may be employed if preferred), and they may
be arranged in different planes, according to requirements. Also, the rollers may,
by suitable mechanism, be moved further apart or closer together and they may
be mounted in such a manner, that their relative position to each other can be
varied as required. In the machine shown by way of example the axle of each
roller is held in a carrier guided radially in a sleeve and provided with a screw
spindle fitting into screw nut . The spindles also carry tooth wheels, all
of which engage with the toothed rim of a wheel r, which receives rotary motion
from a pinion c, whose shaft c¹ is fitted with a starwheel or crank handle. When
this shaft is turned to the right or to the left, the rollers we are simultaneously and
uniformly brought nearer to or farther away from each other and from the piece
of work.

page_text: The operation is as follows:
"
..
"
<
To begin with, the rollers w are caused to move apart, and the blank" is
fitted in or on the spindle a. The latter is then set in rotary motion by means of
a driving belt or the uke, and the rollers are caused to approach the axis of the
wheel or rollers carrying frame r, and of the spindles a and b, until they touch
the blank." After this the blank is wholly or partly slid in between the
rollers through an adequate movement being imparted to the spindle bor to the
spindle a itself whichever meets the case; and this adjustment of the parts is
repeated, whilst the rollers are caused to move closer together or further apart,
as many times as may be necessary to give the "blank the shape or configura-
tion to which it is desired to roll it out.
Where it is intended to turn out hollow objects, the "blank" is passed through
between the transversely set rollers until the material of which it consists comes
to pass over or surround the spindle which is to serve as a core-piece, such
"blank" being at intervals shifted backwards and forwards, while the rollers
are brought close together.
Owing to the improved arrangement of this rolling mill, the hollow space
or bore of the bar or other object being rolled may receive any desired shape or
outline, which in all cases will be identical with that of the core piece or
mandrel, riz, either cylindrical, as shown, or triangular, square, polygonal,
helical &c. Indeed, it may be conical if desired, or provided with an offset, so
that one portion of the bore may become wider than the rest.
The novel arrangement also permits articles of a conical external outline, or
bodies having enlargements, beads, grooves &c. around their outer surface, to
be rolled; it being only necessary for these purposes correspondingly to adjust
the relative position of the rollers.
If preferred, the roller supporting frame may be adjusted during the rolling
operation, instead of the "blank," as will be readily understood.
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. A rolling mill comprising in its construction a group of adjustable rollers
distributed around the longitudinal axis of the "blank" or object to be rolled
and placed approximately at right angles to the same; means for supporting the
axles of the said rollers and for varying their distance from the longitudinal
axis of the "blank," and means for holding and guiding the "blank" at the ends,
and for imparting motion to the same, substantially as described and for the
purpose specified.
:
2. A rolling mill for hollow bars comprising in its construction a longitudinally
moveable spindle adapted to hold and guide one end of the "blank," a core in line
with the said spindle and corresponding in shape and size to the bore of the bar,
a group of adjustable rollers arranged around the axis of the said blank at right
angles to the same, a roller carrying frame adapted to support and guide the axles
of the said rollers, mechanism for simultaneously and uniformly varying the
distance of the said roller axes from the axis of the blank, and means for
imparting motion to the spindle holding the blank and to the core.
3. A rolling mill constructed and adapted to operate substantially as described
and shown by the drawings.
Dated this 15th dox of Tonuo 1000
FAIRFAX & WETTER,
37 and 39, Essex Street, Strand, London.
Agents for the Applicant.