Improvements in the Tapering or Reducing of Tubes of Iron, Steel, or other Metals, and in the Ornamentation thereof.
Year: 1888

page_text: Date of Application, 15th Sept., 1888
Complete Specification Left, 15th June, 1889-Accepted, 3rd Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Tapering or Reducing of Tubes of Iron, Steel,
or other Metals, and in the Ornamentation thereof.
I WILLIAM PILKINGTON of 74 Green Lanes Small Heath, Steel tube drawer do
hereby declare the nature of my said invention to be as follows:-
My Invention has reference to the tapering or reducing of tubes or pipes of iron
Steel or other metals more particularly to that class known as Seamless but also
applicable to tubes or pipes made by other Processes and used for cycles, boilers, and
tapered tubes generally.
I will describe my Invention first as applied to my mode in making or tapering
tubes.
I construct one two or more dies or moulds having in each a tapered aperture
that is to say open at the top and bottom, if more than one die is used each is
locked or stayed to the other in a well known manner and thus form an uninterrupted
tapered passage the number of dies would vary according to the length of the
tapering of the tube so far I propose to set the said die or dies or moulds in a vertical
position but practice will determine this.
The mode I employ for reducing in principle is similar to the above described.
The apertures in the dies or moulds being cylindrical the upper edge of each
forming a Seat of a desired configuration each die or mould when locked or stayed
together although diminishing in size maintains a uniformity I thus produce an
ornamental effect.
.
The tubes I propose to taper or reduce by the above described process is effected
as follows.
I take a tube of a required length solid drawn, seamless or otherwise and place (if
more than one die or mould is employed) in or at the mouth of the aperture of the
uppermost die and by means of hydraulic or other pressure I force the one end of
the said tube down to the said die or dies, and by this means taper or reduce the said
tube according to the dies employed.
The dies or moulds are constructed to withstand the pressure they are subjected to.
Dated 14th September 1888.
THOS. KENDRICK,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Tapering or Reducing of Tubes of Iron, Steel,
or other Metals, and in the Ornamentation thereof.
I WILLIAM PILKINGTON of 74 Green Lanes Small Heath Steel Tube Drawer,
do hereby declare the nature of my said invention and in what manner the same is to
be performed; to be particularly described and ascertained in and by the following
statement:-
.
My Invention has reference to the tapering or reducing of tubes or pipes of iron
Steef or other metals, more particularly to that class known as seamless but also
applicable to tubes or pipes made by other processes and used for cycles, boilers, and
tapered tubes generally:
I will describe my Invention first to my mode in making or tapering tubes.
I construct one two or more dies or moulds having in each a tapered aperture that
is to say open at the top and bottom, if more than one die is used each is locked or
stayed to the other in a well known manner and thus form an uninterrupted tapered
passage the number of dies would vary according to the length of the tapering of
DQ77
-

page_text: the tube so far I propose to set the said die or dies or moulds in a vertical position
but practice will determine this.
The mode I employ for reducing in principle is similar to the above described.
The apertures in the dies or moulds being cylindrical the upper edge of each forming
a seat of a desired configuration, each die or mould when locked or stayed together
although diminishing in size maintains a uniformity I thus produce an ornamental
effect.
The above described process by which I propose to taper or reduce the tubes is
effected as follows.
I take a tube of a required length solid drawn, seamless or otherwise and place it
(if more than one die or mould is employed) in or at the mouth of the aperture of
the uppermost die and by means of hydraulic or other pressure I force the one end
of the said tube down the said die or dies, and by this means taper or reduce the said
tube according to the dies employed. The dies or moulds are constructed to with-
stand the pressure they are subjected to.
And in order that this my said Invention may be more clearly understood I will
now proceed to describe the same reference being made to the sheets of drawings, to
the various figures and letters marked thereon that is to say.
No. 1 sheet of drawings Fig. 1 is a view in elevation of three dies or moulds,
constructed according to my Invention, for making or tapering of tubes. Fig. 2, is
a view in elevation (sectional) of the said dies or moulds.
Fig. 3. is the tube as made or tapered after leaving the said dies or moulds.
No. 2 sheet of drawings
Fig. 4, is a view in elevation of three dies or moulds constructed according to my
Invention for making, reducing or ornamenting of tubes.
Fig. 5, is a view in elevation, (sectional) of the said dies or moulds.
Fig. 6, is the tube as made or reduced or ornamented after leaving the said dies or
moulds.
Fig. 7, is a view of the tube when reduced and the surface decorated after leaving
of the said dies or moulds.
The same letters of reference upon the several figures indicate like or corresponding
parts.
In Figures 1-2 a, a, a are the dies or moulds for tapering constructed with the
flanges b, b, which engage upon the seats c. c. and are thus stayed and locked together,
whether one or more dies or moulds are employed each one is open at the top d and
bottom e, and each one is tapered correspondingly, so that when two or more dies or
moulds are together there is an uninterrupted tapered passage from the top to the
bottom as shewn in Fig. 2, this view also illustrates the tube in the said dies or
moulds a, a, a, and is marked g, also in Fig. 1, and is shewn tapered by the employ-
ment of the said dies or moulds, and Fig. 3, shews the said tapered tube g removed
from the dies or moulds.
In Figures 4 and 5 a, a, a, are the dies or moulds for reducing constructed as above
described of Figures 1, and 2, with flanges bengaging upon the seats c, c, by which
means they are stayed or locked together, these are also open at the top d and bottom e,
but each aperture or opening is cylindrical but in each die or mould a, a, a, it
diminishes as shewn in Fig. 5, the corner of d, in each die or mould a being removed
or rounded to prevent cutting when the tube g, is being reduced or ornamented.
Fig. 6 shews the said reduced tube g removed from the dies or moulds.
In some cases 1 may construct the said dies or moulds a, a, a, with the apertures
(through which the tube g is forced) as above described of a hexagonal octagonal,
reeded or other designed surface which would run parallel with the said aperture, as
the tube would only leave the dies or moulds when so arranged. I thus produce an
effect in a simple manner which has only been obtained hitherto by an amount of
manual labour this mode is illustrated by Fig. 7.
The class of tubes I taper reduce or ornament, are those in commerce known as
solid drawn, seamless and such other tubes and for such purposes as tapered reduced
or ornamented tubes may be employed.

page_text: The said dies or moulds a, a, a, may be of any depth, and of any number required
for the purpose, but in any case one or more being used the one end of a cylindrical
tube is placed at the mouth of the uppermost and by hydraulic or other pressure the
said tube is forced down the said die or dies or moulds and the object of this Invention
is effected.
The exterior shape or configuration of these dies or moulds a may be round, square,
or other form and stayed or locked together in any manner sufficient to withstand
the pressure they are subjected to during the above operation.
The above being my Invention I wish to say that I do not limit myself to the
precise details or arrangement of parts as shewn on the accompanying sheets of
drawings, but that I hold myself at liberty to alter or modify the same without
departing essentially from my said Invention.
Having now particularly described and ascertained the nature of my said Inven
tion and in what manner the same is to be performed I declare that what I
claim is-
1st. The construction of a die or mould or of dies and moulds (to be used separate
or combined) having in each a tapered aperture for the tapering of tubes substantially
as herein before set forth and described.
2nd. The construction of a die or mould or of dies and moulds (to be used separate
or combined) having in each a cylindrical aperture, plain, or ornamental for the
reducing or ornamenting of tubes substantially as hereinbefore set forth and
described.
3rd. The general construction and application of the said die or mould or of dies
and moulds for the purpose substantially as herein before set forth in the foregoing
specification and shewn on the accompanying sheets of drawings the whole forming
"Improvements in the tapering or reducing of tubes of iron steel or other metals
and in the ornamentation thereof."
Dated 15th June 1880
THOMAS KENDRICK,
Agent.