Improvements in Tools or Apparatus for Flanging Plates.
Year: 1891

page_text: Date of Application, 11th July, 1891
Complete Specification Left, 6th Apr., 1892-Accepted, 18th June, 1882
PROVISIONAL SPECIFICATION.
Improvements in Tools or Apparatus for Flanging Plates.
I, SAMBON FOX of Leeds Forge, Leeds, in the County of York, Civil Engineer,
do hereby declare the nature of this inveution to be as follows:-
This invention relates to improvements in tools or apparatus for use in the
manufacture of flanged plates, where the flanges are required to approach each
other from opposite directions, as for instance in the case of water cooled rings, the
rims of pulleys &c. and other articles which need not necessarily be of circular
shape.
I will explain the nature of my invention by describing the manufacture of a
water cooled ring: A flat plate cut to a circular form, and having a circular hole
therethrough concentric with the outside edge, is placed upon a female die or
matrix so formed as to produce the shape of one of the flanges (say the upper
flange) and having within it movable pieces formed as segments of a circle; or the
whole die or matrix may be so formed. This die or matrix rests upon the lower
table of a hydraulic or other press, or other suitable machine.
Upon the upper table of the hydraulic press is fixed a male die corresponding in
shape to the die or matrix before mentioned and having fixed centrally thereto a
detachable punch.
The upper and lower tools being then caused to meet, the plate is pressed
between them and the top flange and part of the ring formed. The pressure is thon
removed the punch detached, and the lower die or matrix raised and supported
above the bottom table of the press by means of four subsidiary rams forming part
of the press. One or more tools or punches is or are then placed in position on the
lower table of the press, and pressure being again applied so as to cause the tools
to meet, the lower or return flange of the ring is produced at any angles required
with the upper flange, or it may be made nearly parallel thereto if desired.
The segmental die or matrix, or the loose parts thereof is or are then withdrawn
together with the flanged plate from which the segmental parts can then be easily
detached. Where moro than one too! is required, the upper one can be made in
segments so that it can be readily pushed away without loss of time when not
required for use, the whole of the above described operation being intended to be
done at one heat, though not necessarily so.
LUL
T. 1901
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inu Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Tools or Apparatus for Flanging Plates.
I, SAMSON Fox of Leeds Forge, Leeds, in the County of York, Civil 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 tools or apparatus for use in the
manufacture of flanged plates, where the flanges are required to approach each
other from opposite directions, as for instance in the case of water cooled rings, the
rims of pulleys, etc., and other articles which need not necessarily be of circular
chane

page_text: A female die or matrix that rests upon the lower table of some suitable pressing
machine such as a hydraulic or other press is so formed as to produce the shape of
one of the flanges (say the upper flange) of any desired article, and has within it
movable pieces formed as segments of a circle; or the whole die or matrix may be
BO formed.
Upon the upper table of the pressing machine is fixed a male die that corresponds
in shape to the die or matrix before mentioned and 'has fixed centrally thereto a
-detachable punch. The arrangement is such that for example a flat plate with a
hole therethrough having been placed on the female die if now the pressing machine
be put into operation so as to cause the upper and lower tools to nearly meet, the
plate will be pressed between the dies and the top flange and part of the desired
article (depending on the form of the dies) will be formed. The pressing machine
is constructed with four subsidiary rams, whereby after the just described operation
and after the pressure has been removed and the punch detached, the lower die or
matrix is raised and supported above the bottom table of the machine. One or
more tools or punches is or are then placed in position on the lower table of the
pressing machine, and pressure being again applied so as to cause the tools to nearly
meet, the lower or return flange of the desired article is produced at any angle
required with the upper flange, or it may be made nearly parallel thereto, if
desired.
The segmental die or matrix, or the loose parts thereof, is or are then withdrawn,
together with the flange plate, from which the segmental parts can then be easily
detached. Where more than one tool is required, the upper one can be made in
segments so that it can be readily pushed away without loss of time, when not
required for use, the whole of the above described operations being intended to be
done at one heat, though not necessarily so.
Apparatus such as above described is illustrated in the accompanying drawings
as adapted for the manufacture of water cooled rings according to my invention,
but obviously any other article with flanges more or less approaching each other
from opposite directions, may be manufactured by like means, the dies being made
to suit the design of the article to be produced.
Fig. 1.is a plan of the dies.
Fig. 2 is a section on the line A B Fig. 1 illustrating the relative positions of
iparts after the first operation.
Fig. 3 is a sectional elevation illustrating the relative positions of parts after the
-second operation, the punch e having been removed.
Fig. 4 is a sectional elevation illustrating the relative positions of parts after the
third and completing operation; the top ring h' of the compound punch h, having
been removed.
Fig. 5 is a plan of the compound punch. on 'the' bottom 'table of the pressing
machine.
A flat plate having been out to a circular form with a circular hole therethrough
concentric with the outside edge, is placed upon the female die or matrix b, which
rests upon the bottom table a of a hydraulic or other suitable press.
This female die or matrix 6 is formed so as to produce the shape of the upper
flange, and has within it movable pieces d, formed as segments of a cirole, to
facilitate the withdrawing of the plate after the completion of the operation.
Upon the upper table a of the press a male die c is fixed, having a detachable
punch diese secured to it in the centre by means of a bolt and cotter f
The upper and lower dies b and c, being made to nearly meet, the plate is
pressed between them into the shape, shewn at in Fig. 2. The pressure being
then released, the punch die e is detached and the lower tool or matrix 6 having
been raised by the four subsidiary rams g during the first operation, is in position
for the second operation.
The bottom table a¹ upon which has been placed a compound punch die composed
of two rings and A, is then made to approach the plate and dies band c, until
it assumes the position shown in Fig. 3.

page_text: The bottom table a' is then lowered together with the compound punch die A¹³
the top ring of which is slipped off. The table a' and part of the punch die
being then raised again complete the operation as shewn in Fig. 4.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
The hereinabove described apparatus adapted to produce from metal plates, by
pressure in the manner set forth, articles with flanges approaching each other from
opposite directions.
W. LLOYD WISE,
I
Per F.J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.