Improvements in Machinery or Apparatus for Straightening Angle Bars and Bars of other Sectional Form.
Year: 1888

page_text: Date of Application, 23rd Nov., 1888
Complete Specification Left, 22nd Aug., 1889-Accepted, 28th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for Straightening Angle
Bars and Bars of other Sectional Form.
I, LEWIS RICHARDS of 13 Charlotte Street, Dowlais, in the County of Glamorgan,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improved machinery or apparatus to be used in the
straightening of metal angle bars and bars of other sectional forms, other than
railway rails or bars.
The machinery consists of an adequately strong framing supporting the necessary
bearings and parts for the axes carrying the driving and other gearing and the
adjusting, pressing and guiding devices.
The metal bar to be straightened, say, for instance, a bar of angle section, is
passed between disc and roller surfaces.
The discs and rollers are adjustable so as to conform to the section of the bar,
and revolve simultaneously in the directions necessary to draw the bar through,
which in its passage or passages is straightened.
There are also adjustable rollers or blocks outside the discs and rollers already
mentioned which may be used to guide or deflect the bar when passing between
the discs and rollers.
The discs are adjustable to the work by being mounted so as to be driven by
shafts provided with screw adjustment, and the rollers which also act with these
discs to straighten the bars in like manner are mounted so as to be adjustable
as to their pressure. The rollers also which press on the edge and face of the
flanges also are made adjustable readily as required by means of sliding guide blocks
traversing in correspondingly formed keyways and having screw adjustments.
The accompanying drawing, shewn in two divisions for convenience of delineation,
(the two portions being divided on the line x-x), by-plan view shews one arrange-
ment of the apparatus adapted for carrying the invention into effect.
A is the metal bar to be straightened, here shewn of L section.
B B are the adjustable rollers or blocks for guiding or deflecting the bar A;
are adjustable by the handle wheels B¹.B'.
these
CCC are the adjustable discs, between which and the rollers D D, the bars to be
straightened are passed, these rollers D D are also adjustable, and the whole coöperable
upon the bar as it passes between them.
E, E, E, E, are the screws for adjusting the same.
F is a driving gear wheel, mounted on the axis F¹ borne by bearings on the main
framing and operating the disc C¹.
GG are gear wheels driven by gears mounted on cross axes H H.
I I are screw adjustments for moving the rollers D D endwise.
The discs Care similarly adjustable to or from their work.
The discs and rolls are capable of being driven in either direction at will.
The angle at which the discs and rollers relatively operate, and the angle of the
coöperating parts may be arranged to suit requirements of the work or form of bar
to be straightened although for plain triangular bars the discs to work horizontally
L

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus for Straightening Angle
Bars and Bars of other Sectional Form.
I, LEWIS RICHARDS of 13 Charlotte Street, Dowlais, in the County of Glamorgan,
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 improvements in machinery or apparatus for use in the
straightening of metal angle bars and bars of other sectional forms other than railway
rails or bars.
The machinery consists of an adequately strong framing supporting the necessary
bearings and parts for the axes carrying the driving and other gearing and the
adjusting, pressing and guiding devices.
The metal bar to be straightened, say, for instance, a bar of angle section, is passed
between the adjacent surfaces of discs and rollers.
The straightening is to be effected by passing the bars between adjustable
discs and discs and rollers combined arranged in such a manner that the opposite
faces of the bar are opposed or pressed between disc and roller surfaces as it
passes between the group or groups of discs and discs and rollers combined, the
direction of their motions being such as to draw the bar along between them.
The driving arrangement of the discs and discs and rollers combined may be
such that the direction of rotation can be reversed so as to cause the bar to be
straightened to travel either way as may be required. There are also adjustable
rollers, blocks, or chocks outside or between the group or groups of discs and
dises and rollers combined which can be moved so as to press against either face
of the bar so as to guide or deflect it as may be required.
The discs and rollers are adjustable so as to conform to the section of the bar,
and revolve simultaneously in the directions necessary to draw the bar through,
which in its passage or passages is straightened.
The discs and discs and rollers combined are adjustable to the work by being
mounted so as to be driven by shafts provided with screw adjustment, and the
rollers which also act with these discs to straighten the bars in like manner are
mounted so as to be adjustable as to their pressure. The rollers also which press
on the edge and face of the flanges also are made adjustable readily as required
by means of sliding guide blocks traversing in correspondingly formed keyways or
V shaped grooves and having screw adjustments.
The angle at which the discs and discs and rollers combined relatively operate,
and the angle of the coöperating parts may be arranged to suit requirements of
the work or form of bar to be straightened although for plain triangular bars the discs
and discs and rollers combined to work horizontally and vertically is convenient.
The relative numbers of the operating parts may be varied.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan view of an arrangement of adjustable discs and rollers combined
so as to be adapted for carrying out the invention.
Fig. 2 shews a view of the set of rollers and discs and rollers combined marked (1)
separately, taken at right angles to Fig. 1 on the line Z.
Fig. 3 shews a like view of the set of rollers and discs and rollers combined (2),
taken at right angles to Fig. 1 on the line Y.
Figs. 4 and 5 shew respectively an end elevation and a side elevation of a
modification in the arrangement of these rollers and discs and rollers combined.
c is a large disc, h h discs and rollers combined and are the rollers which by
their combined action serve to straighten the bars, acting in conjunction with the
guiding rollers to be described. i is the bar of metal here shewn as of angle section
in the course of being passed between the discs and rollers.

page_text: Fig. 6 shews a side elevation of machinery embodying such discs and discs and
rollers combined, as are indicated by Figs. 4-5.
Fig. 7 shews an end elevation of the same.
Fig. 8 shews a plan view thereof.
Referring to Fig. 1, supposing the bar of metal i, of angle section, to be in course
of straightening between the surfaces of the rollers, and discs and rollers combined h
and h, the bar travelling and the rollers and discs rotating in the direction indicated
by the arrows, that bar will first pass between a pair of guide rollers jj, and against
another guide roller ³, thence to between the first set of rollers and discs and rollers
combined, then to the second set, then against the guide roller ³, and then to between
the pair of guide rollers j* jo.
In the modification indicated by Figs. 4 and 5, the angle bar i, travelling in the
direction of the arrow, passes first between the guide rollers j, j, j then between the
first rollers and discs and rollers combined h h and the face of the disc c, then to
between the faces of the second set of rollers and dises and rollers combined h² h³ and
the face of the disc c, and then to between the guide rollers j³, j, j³. In this
arrangement a greater base for the angle bar is provided by the disc c.
Referring to Figs. 6, 7 and 8, each of these figures for convenience of arrangement
of the drawings is divided into two portions, Fig. 6 on the line x-x, Fig. 7 on
the line y-y and Fig. 8 on the line z-z.
In these figures 6, 7 and 8, a indicates the main framing. b is the set of
fast and loose driving pulleys mounted on an axis d, which by suitable gearing
drives the axis e, which again engages with suitable gears f, mounted on axes
not shewn revolving in bearings 9 which by other gearing drive the wheels k,
mounted on the axes k¹, which drive rollers as for acting on the bar i.
These rollers h¹ are adjustable by means of the screw adjustment ² relatively
to their work. The rollers h, h, are mounted on the axes 1, carried in
bearings,, which axes 1, 1, are driven by worm wheels 12, 12, mounted thereon,
being engaged by the worms mounted on the axes e, e, which receive their motion
from the axis d. On this axis d is also mounted a worm, which engages the worm
wheel mounted on the axis n¹, carried in bearings n², n², on which is mounted
the disc c. m, m are screw axes engaging corresponding screws in parts carried by
the frame a, and which serve to effect vertical adjustment of the axes k of the rollers ²,
relatively to the operating face of the combined dises and rollers h, whilst the
adjustment ² serves to regulate and adjust the distance apart relatively of the
roller and the disc c. is a handle for turning the stem 17, by which screw
adjustment vertically is effected of the guide roller i, relatively to the bar being
straightened. is a like handle operating the stem for effecting horizontal screw
adjustment of the roller relatively to the edge of the bar i under operation. Like
means of adjustment are provided for the other guide rollers.
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 apparatus for straightening angle bars, and bars of other sectional form,
other than railway rails or bars, the combination of rollers, and rollers and discs
adjustably mounted, so that the bars to be straightened may be passed between their
adjacent surfaces, in combination with adjustable rollers, blocks or equivalent devices,
adapted to deflect or guide the bars in proper direction, substantially as herein set
forth.
2. The herein described machinery or apparatus for straightening angle bars, and
bars of other sectional form, wherein the bars are straightened by being passed between
rollers, and rollers and discs, arranged and co-operating with guiding parts,
substantially as set forth.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.