Improvements in Rolls for Rolling Taper Bars and Taper Metallic Tubes.
Year: 1898

page_text: Date of Application, 16th Feb., 1898
Complete Specification Left, 28th Oct., 1898-Accepted, 23rd Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Rolls for Rolling Taper Bars and Taper Metallic
Tubes.
We, JABEZ LONES, and EDWARD HOLDEN, trading as Lones, Vernon and
Holden, of Sandwell Iron and Axle Works, Smethwick, in the County of Stafford,
Manufacturers, do hereby declare the nature of this invention to be as follows:-
Our invention consists of rolls constructed, and arranged and worked in the
manner hereinafter described by the use of which rolls the production of long
taper bars for the manufacture of the brake levers of railway wagons and trucks
and long taper bars for various purposes is facilitated.
The improved rolls are applicable to the rolling of taper bars both on their
faces and edges or on their faces only or on their edges only, and the said
rolls are also applicable to the rolling of taper tubes either circular, square or of
other figure in cross section and of iron or steel or other metal or alloy.
The rolls which we employ are gapped rolls that is, rolls having cut away
parts in their peripheries so that the end of the bar or tube to be tapered can
be introduced between the said gaps when the rolls in their rotation have brought
the said gaps opposite each other.
The bar or tube is fed to the rolls from the front, the rolls rotating in a direc-
tion proper to carry the bar or tube between the rolls to the back thereof. The
rolls have a stop in front to determine the distance to which the bar or tube is
to be introduced between the gaps in the rolls and the said rolls are also provided
at front with a table or plate for supporting the bar or tube during the rolling
operation. The improved rolls have a series of grooves of progressively diminish-
ing size the said grooves having a configuration proper to give the desired longi-
tudinal taper to the bar or tube and also a cross sectional figure corresponding
with the cross sectional figure of the bar or tube to be rolled. To ensure the
acting parts of one roll coming opposite corresponding acting parts of the other
roll we gear and lock the two rolls together by means of gearing wheels at one
or at both ends of the barrels of the rolls or at the middle of the barrels of the
rolls the said gearing or locking wheels being cast solid with the barrels or made
separately and keyed thereto. By this means the accurate rolling of the bar or
tube is obtained.
In using the rolls, the workman, standing in front of the rolls introduces the
end of the heated bar or tube between the coincident gaps in the pair of rolls
and passes the said bar or tube to the stop in front of the rolls. The rolls in
their rotation seize the bar or tube taper it and carry it between the rolls and
deliver it at the back of the rolls.
In rolling taper tubes the hollow billet is supported upon a mandril.

page_text: Improvements in Rolls for Rolling Taper Bars and Taper Metallic
Tubes.
We, JABEZ LONES and EDWARD HOLDEN, trading as Lones, Vernon and
Holden, of Sandwell Iron and Axle Works, Smethwick, in the County of Stafford,
Manufacturers, do hereby declare the nature of our invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
Our invention consists of rolls constructed and arranged and worked in the
manner hereinafter described by the use of which rolls the production of long
taper bars for the manufacture of the brake levers of railway wagons and trucks
and long taper bars for various purposes is facilitated.
The improved rolls are applicable to the rolling of taper bars both on their
faces and edges, or on their faces only, or on their edges only and the said
rolls are also applicable to the rolling of taper tubes, either circular, square or of
other figure in cross section and of iron or steel or other metal or alloy.
The rolls which we employ are gapped rolls that is, rolls having cut away
parts in their peripheries so that the end of the bar or tube to be tapered can
be introduced between the said gaps when the rolls in their rotation have brought
the said gaps opposite each other.
The bar or tube is fed to the rolls from the front, the rolls rotating in a direc-
tion proper to carry the bar or tube between the rolls to the back thereof. The
rolls have a stop in front to determine the distance to which the bar or tube is
to be introduced between the gaps in the rolls and the said rolls are also provided
at front with a table or plate for supporting the bar or tube during the rolling
operation. The improved rolls have a series of grooves of progressively diminish-
ing size the said grooves having a configuration proper to give the desired longi-
tudinal taper to the bar or tube and also a cross sectional figure corresponding
with the cross sectional figure of the bar or tube to be rolled. To ensure the
acting parts of one roll coming opposite corresponding acting parts of the other
roll, we gear and lock the two rolls together by means of gearing wheels at one
or at both ends of the barrels of the rolls or at the middle of the barrels of the
rolls, the said gearing or locking wheels being cast solid with the barrels or made
separately and keyed thereto. By this means the accurate rolling of the bar or
tube is obtained.
In using the rolls, the workman, standing in front of the rolls, introduces the
end of the heated bar or tube between the coincident gaps in the pair of rolls
and passes the said bar or tube to the stop in front of the rolls. The rolls in
their rotation seize the bar or tube, taper it and carry it between the rolls and
deliver it at the back of the rolls.
In rolling taper tubes, the hollow billet is supported upon a mandril.
Figure 1 of the accompanying drawings represents in side elevation and
Figure 2 in cross section, through the first grooves of the rolls, a pair of gapped
rolls constructed according to our invention for rolling long taper bars from
which the brake levers of railway wagons and trucks are made, the bar for the
purpose described being rolled taper both on its faces and on its edges.
Figure 3 represents the billet of iron or steel from which the long taper brake
lever bar is to be rolled and Figures 4, 5, 6 and 7 represent the several rolling
stages of the bar as hereinafter described.
The rolls Figures 1 and 2 are gapped rolls and are rotated in a direction proper to
carry the bar between the rolls to the back thereof as indicated by the arrows in

page_text: Figure 2. In front of the rolls is a stop a (see Figure 2) for determining the distance
to which the bar is to be introduced between the gaps in the rolls the tongs by which
the workman introduces the bar coming against the said stop. The said stop a also
constitutes a table for supporting the bar as it is introduced between the rolls.
The cut away parts or gaps in the rolls are marked b, b, b and the grooves or
spaces formed between the rolls are marked c, d, e, f, g. The manner in which
the several grooves between the two rolls are formed will be best understood by
an examination of Figure 1 where it will be seen that the lower roll constitutes à
series of collars between which and the grooves proper in the upper roll, the bar
is rolled. The series of grooves in the rolls are of a progressively diminishing
size and have a configuration proper to give the desired longitudinal taper (see
the section of the upper roll) to the bar and also a cross sectional figure corre-
sponding with the cross sectional figure of the bar to be rolled. The two rolls
are geared and locked together by the toothed wheels i, i; i, i on the ends of
the barrels of the rolls and within the housings of the rolls for the purpose of
ensuring the accurate rolling of the bar as hereinbefore explained. Or the rolls
may be geared together by toothed wheels at one end only of the barrels of the
rolls or at the middle of the barrels of the rolls.
In rolling the taper brake lever bar by the use of the rolls described we
proceed as follows:-The workman at the front of the rolls first introduces the
end of the heated billet Figure 3 into the first groove e of the rolls by the action
of which rolls it is carried between them to the back thereof and the bar rolled
taper on its opposite faces and elongated and the head which is to be formed
on the bar commenced, the bar having the form given to it represented in
Figure 4. The bar Figure 4 is next passed by the workman at the front of the
rolls edgewise to the gap b at the second groove d and to the stop a. The rolls
in their rotation seize the bar carry it through the groove d and taper it on one
face and elongate the bar, further fashioning the head or enlargement at one
end and giving the bar the form represented at Figure 5. The bar Figure 5
is next passed in succession between the inclined grooves e, f of the rolls
whereby its opposite edges are in succession further tapered and also one of its
faces further tapered, the bar now assuming the form represented in Figure 6.
The bar Figure 6 is finally passed in succession through the grooves g, h of the
rolls so as to further taper the bar on one of its faces and in succession on its
opposite edges, the bar now assuming the form represented in Figure 7. During
the rolling operations Figures 5, 6 and 7 the head end of the bar is unoperated
upon by the rolls the said head being received in the gaps 6 of the rolls. From
the rolled long taper bar Figure 7 the brake lever is made in the ordinary way.
The rolls with slight modifications may be used for rolling taper bars for
various purposes whether the said bars are taper on both their faces and edges
or on their faces only or on their edges only and for rolling brake lever hars
having a parallel or flat part at the middle or other part of the bar, the bar
tapering from either side the flat or parallel part on its faces and edges or on its
edges only.
Figure 8 represents in side elevation and Figure 9 in cross section a pair of gapped
rolls constructed according to our invention for rolling taper tubes, and Figure 10
represents a taper tube rolled by the use of the said rolls. The gaps in the rolls
are marked k, k and the tapering grooves are marked 1, 1. The said grooves
progressively diminish in size and have a configuration proper to give the desired
taper to the tube and also a cross sectional figure of the tube to be rolled. The
hollow billet and the tube made therefrom is supported upon a taner mandril
during the rolling operation. In Figure 9 the taper mandril with the heated
hollow billet upon it is represented introduced between the coincident gaps of the
rolls for the first rolling operation through the largest groove of the rolls. The
workman at the front A of the rolls introduces the billet between the rolls in
the position represented by means of the mandril m. As the rolls rotate in the

page_text: direction of the arrows Figure 9 they seize the billet and carry it with the
mandril between the rolls to the back thereof and thereby elongate the said
billet. The mandril and partly made taper tube upon it having been returned
from the back of the rolls to the workman at the front of the rolls the said tube
is passed in succession in the same manner through the other grooves of the
rolls and the taper tube Figure 10 thereby formed.
The rolls are geared together by toothed gearing i, i as represented in Figure 8
for the purpose herein before described with respect to the rolls Figures 1 and 2.
In order to avoid the loss of time and labour attending the passing of the
partly made tube from the back to the front of the rolls as last described, back
action gapped rolls may be employed, that is, rolls in which the billet or the
partly made tube is returned by the action of the rolls to the workman at the
front of the rolls. Gapped rolls of this kind are represented in side elevation
in Figure 11, and cross section in Figure 12 the said section being taken on
the dotted line 1, 1 Figure 11; Figure 13 represents the taper tube rolled by the
use of the rolls Figures 11 and 12.
These rolls rotate in the direction of the arrows and carry the partly made tube
back to the workman in front A of the rolls. In the said Figures 11 and 12,
m, m are the gaps or cut away parts of the rolls and n, n are the grooves of the
said rolls; is the taper mandril on which the tube is supported (see Figure 12).
In using these back action rolls the hollow billet (indicated in dotted lines in
Figure 12), or the partly made tube, on the taper mandril p, is passed by the
workman at the front A of the rolls into the gaps m, m when the said gaps
are brought opposite one another, the mandril passing through the eve of the
rolls as represented in Figure 12. The rolls in their rotation seize the billet or
partly made tube and return it to the workman at the front of the rolls the
action of the grooves of the rolls elongating the billet or partly made tube upon
the taper mandril.
For the purpose of centring the billet or partly made tube when it is passed
into the coincident gaps of the rolls and before the tube is seized by the rolls,
we expand or bell-mouth the grooves of the rolls where they join the gaps or
cut away parts of the grooves n of the rolls. The expanded or bell mouth parts
of the grooves n, n are marked n³.
Where the larger end of the taper tube requires a boss, collar or flange rolled
upon it, as indicated in dotted lines in Figure 13 the partly made tube is fed
to a recess in the rolls and the larger end of the tube is so shaped as to leave
a roughly formed boss, collar or flange on the finished tube which boss or collar.
may be perfected in any convenient way.
The back action rolls are geared together by toothed wheels i, i on the ends
of the barrels of the rolls as described with respect to the several pairs of rolls
herein before described and illustrated.
Tubes of any desired degree of taper may be rolled by the use of rolls con-
structed according to our invention the mandril and the tapering grooves of
the rolls being modified accordingly.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that we
claim as our invention:-
First; The improvements in rolls herein before described and illustrated in
Figures and 2 of the accompanying drawings for rolling taper bars of iron
or steel the said improvements consisting essentially in combining with the
gaps b, of the rolls, the grooves or spaces c, d, e, f, g, h constructed and
acting substantially as described and illustrated, whether the said rolls are used
for rolling the bars taper on both their faces and edges or on their faces only
or on their edges only.
Secondly; The improvements in rolls hereinbefore described and illustrated
in Figures 8, 9, 11 and 12 of the accompanying drawings for rolling taper

page_text: metallic tubes the said improvements consisting essentially in the combination
of the gaps or cut away parts k, kor m, m of the rolls for introducing the end
of the hollow billet or partly made tube into the rolls, with the tapering grooves l, l
or n, n for operating on the hollow billet or partly made tube supported upon
a mandril substantially as described and illustrated, whether the said gapped
and grooved rolls in their rotation seize the billet or partly made tube and carry
it between the rolls from the front to the back thereof or return the billet or
partly made tube back to the workman at the front of the rolls.
Thirdly; The combination with rolls of the kinds claimed in Claims 1 and 2
of gearing wheels on the barrels of the rolls and within the housings of the
rolls for ensuring the accurate rolling of the bar or tube as herein before described
and illustrated in Figures 1, 8 and 11 of the accompanying drawings.
Dated the Twenty-sixth day of October 1898.
JABEZ LONES.
EDWARD HOLDEN.