Improvements in Machines for Bevelling and Bending Angle-iron and other Metallic Bars.
Year: 1897

page_text: PROVIDIUNAL DIVIFICATION.
Improvements in Machines for Bevelling and Bending Angle-iron
and other Metallic Bars.
I, MONTAGUE HERBERT CHURCHILL SHANN, of Shoreham, in the County of Sussex,
Engineer, do hereby declare the nature of this invention to be as follows:
1
This invention relates to machines for bevelling or altering the angles of metal
bars of various sections, the chief object that I have in view being to produce
means by which upon the same bar and at the same passage through the machine I
can form either an open or shut bevel.
The apparatus comprises two bevelled wheels for the inside of the angle of the
bar say for example an ordinary angle bar, one of these rollers being substantially
bowl shaped or hollow on one side and the other of smaller diameter, so that when
making a "shut" angle the smaller roller may enter to a more or less extent inside
the bowl roller. The outsides of the angle are supported, the web by a plain
cylindrical roller bearing up against it and serving as an abutment against which
the other rollers operate, and the flange having allotted thereto a roller of
appropriate proportions adapted to be moved for bevelling purposes, together with
the previously mentioned bowl, so that between them they will carry the flange
inwards or outwards so as to make an acute or obtuse angle as may be required."
All the rolls are positively driven as I find that by this means I can produce the
best results.
I may use such portions of the apparatus described in the Specifications of Shann
& Shann No. 12256/96 and No. 19623/96, as may be convenient, especially if it
be desired to use the machine for bending as well as bevelling.
Dated this 7th day of December 1897.
BOULT & WADE,
Agents for the Applicant.
Improvements in Machines for Bevelling and Bending Angle-iron
and other Metallic Bars,
I, MONTAGUE HERBERT CHURCHILL SHANN, of Shoreham, in the County of Sussex,
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 machines for bevelling or altering the angles of metal

page_text: bars of various sections, the chief object that I have in view being to produce means
by which I can form either an open or shut bevel, and vary the angle of the bevel
in different portions of the length of a bar, during one passage of the bar through
the machine.
"
The apparatus comprises two bevelled wheels for the inside of the angle of the
bar say for example an ordinary angle-bar, one of these rolls being substantially
bowl shaped or hollow on one side and the other of smaller diameter, so that when
making a shut" angle the smaller roll may enter to a more or less extent inside
the bowl roll. The outsides of the angle are supported, the web by a plain
cylindrical roll bearing up against it and serving as an abutment against which the
other rolls operate, and the flange having allotted thereto a roll of appropriate
proportions adapted to be moved for bevelling purposes, together with the pre-
viously mentioned roll, so that between them they will carry the flange inwards
or outwards so as to make an acute or obtuse angle as may be required.
All the rolls are positively driven as I find that by this means can produce
the best results.
The accompanying drawings show, diagrammatically, an arrangement of rolls
according to this invention, in two operative positions.
shut'
The inside of the angle of an ordinary angle-bar A, is provided with two rolls,
one, a preferably bevelled wheel B, formed with a bowl-shaped concavity B', on its
free side, the other roll C, being likewise bevelled, but of usual solid construction,
and of smaller diameter than the roll B, so that for the purpose of making a
angle the roll C can swing more or less within the hollowed portion B' of the roll B,
according to the degree of bevel to be formed. In Fig. 1 the rolls are shown in
the position they occupy when operating on a bar, of which the web and flange are
at right angles to each other; in Fig. 2 is shown the relative position of the rolls
when operating a bar of which the web and flange are at an angle of approxi-
mately 60°, the upper portion of the roll C being within the concavity B¹.
The outside surfaces of the angle-bar are supported and operated upon by
rollers D and E.
The rollers may be carried on any convenient support which will permit of the
necessary adjustment of the rolls C and E relative to the rolls B and D) but as this
forms no portion of my invention it need not be here particularly described.
It is evident that by varying simultaneously the adjustment of the rolls (' and E,
relative to the rolls B and D), during the passage of a bar through the machine,
the angle of the bevel may be varied in different portions of the length of the bar,
by one operation.
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 is-
1. In a machine for rolling metals a wheel having one side bowl-shaped or con-
cave substantially as and for the purpose described.
2. In a machine for rolling metals the combination with a wheel having a con-
cave side of a second wheel capable of swinging into the concavity substantially
as and for the purpose described.
3. In a machine for rolling metals the combination and arrangement of rolls
substantially as described or illustrated in the accompanying drawings.
Dated this 5th day of September 1898.
BOULT & WADE,
Agents for the Applicant.