Improvements in Flanging Dies or Formers.
Year: 1899

page_text: Date of Application, 17th Mar., 1899
Complete Specification Left, 18th Dec., 1899-Accepted, 3rd Feb., 1900
Improvements in Flanging Dies or Formers.
We, FRANCIS LAWRENCE LANE, Engineer, and THE LEEDS FORGE COMPANY,
LIMITED, both of Leeds Forge, Leeds, in the County of York, do hereby declare
the nature of this invention to be as follows:
For use with machinery or apparatus to form flanges such (for example) as
those at the ends of steam boiler furnaces or flues, a die or former according to
this invention has a preliminary bending face combined with a rearward or
flange completing face or faces the construction and arrangement being such
that the preliminary bending face or portion of the die or former is more or
less inclined or angular in its relation to the rearward face or faces or completing
portion of the die or former the latter being shaped to suit the particular form
of flange required to be produced. Such a flanging die or former is caused by any
suitable means to approach its work so that first the preliminary or inclined
or angular portion or face will operate and bend the metal to a correspondingly
inclined or angular shape, and afterwards as the die or former travels further
the rearward face or faces or completing portion will come into operation and
gradually form and shape the flange required without unduly straining or
drawing the metal acted upon.
We, FRANCIS LAWRENCE LANE, Engineer, and THE LEEDS FORGE COMPANY,
LIMITED, both of Leeds Forge, Leeds, in the County of York, 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:-
For use with machinery or apparatus to form flanges such (for example) as
those at the ends of steam boiler furnaces or flues, a die or former according to
this invention has a preliminary bending face combined with a rearward or
flange completing face or faces the construction and arrangement being such
that the preliminary bending face or portion of the die or former is more or
less inclined or angular in its relation to the rearward face or faces or completing
Price 87

page_text: portion of the die or former the latter being shaped to suit the particular form
of flange required to be produced. Such a flanging die or former is caused by any
suitable means to approach its work so that first the preliminary or inclined
or angular portion or face will operate and bend the metal to a correspondingly
inclined or angular shape, and afterwards as the die or former travels further
the rearward face or faces or completing portion will come into operation and
gradually form and shape the flange required without unduly straining or
drawing the metal acted upon.
Fig. of the accompanying drawing shows a cross section of a flanging die or
former constructed according to this invention.
Fig. 2 shows parts of flanging apparatus with a portion of the end of a corru-
gated steam boiler furnace or flue in position to be operated upon, our die or
former being shown in its raised or inoperative attitude.
a, a is the die or former formed with a preliminary bending face b inclined
or angular in its relation to the rearward face or completing portion c.
Suitable means such for example as a hydraulic rami, cause the die or former
to approach its work (the flange d, in the present example) so that first the pre-
liminary portion of the die or former will operate and bend the metal and
afterwards as the die or former travels further the rearward face or completing
portion will come into operation and gradually form and shape the flange
required.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
For use with machinery or apparatus to form flanges such (for example) as those
at the ends of steam boiler furnaces or flues of a die or former having a preliminary
bending face combined with a completing face or faces, the preliminary bending
face being inclined or angular in its relation to the rearward face or faces or
completing portion, substantially as described for the purpose specified.
100
1000
Dated this 18th day of December 1999.
For the Applicants,
W. LLOYD WISE.
46, Lincoln's Inn Fields, London, W.C.,
Chartered Patent Agent.