Improvements in Means or Apparatus Employed in the Manufacture of Tubes, Wire, Rods, or Bars from various Copper Alloys and other Metals.
Year: 1897

page_text: Date of Application, 30th July, 1897
Complete Specification Left, 20th Jan., 1898-Accepted, 19th Feb., 1898
Improvements in Means or Apparatus Employed in the Manufacture
of Tubes, Wire, Rods, or Bars from various Copper Alloys and
other Metals.
I, GEORGE ALEXANDER DICK, of No. 110, Cannon Street, in the City of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to that class of apparatus in respect of which Letters
Patent were granted to me dated 18th January 1894, No. 1090, and which apparatus
consisted in part of a pressure chamber or container from which the heated metal
was expressed through a die.
The heated metal was introduced into the pressure chamber or container and a
check disc of dished, corrugated or like expansible form was introduced into the
pressure chamber between the hydraulic plunger and the heated metal and next to
the latter, the check disc serving to prevent the heated metal squeezing backward
past the plunger.
In carrying the present invention into effect, instead of forming the check disc
of dished, corrugated or equivalent shape it is formed with a plain surface and of
the same diameter as the bore of the pressure chamber or container or approxi-
mately so whilst the mouth of the pressure chamber or container is, beyond that
part which is occupied by the heated metal, internally formed with a gradual
Hare or bevel.
By this arrangement of parts, the check disc may be readily introduced into the
flared mouth of the pressure chamber which will act to centralize it without the
necessity for any delicate manipulation.
The check disc will, on the advance of the plunger, be forced into the bore of
the pressure chamber and effectually prevent the back passage of the heated metal
between the plunger and the walls of the pressure chamber.
Dated this 30th day of July 1897.
VAUGHAN & SON,
Agents for the Applicants.
Improvements in Means or Apparatus Employed in the Manufacture
of Tubes, Wire, Rods, or Bars from various Copper Alloys and
other Metals.
I, GEORGE ALEXANDER DICK, of No. 110, Cannon Street, in the City of London,
Engineer, do hereby declare the nature of this invention and in what manner the

page_text: "'
same is to be performed to be particularly described and ascertained in and by the
following statement:-
My said invention relates to that class of apparatus in respect of which Letters
Patent were granted to me dated 18th January 1894, No. 1090, and which
apparatus consisted in part of a pressure chamber or container from which the
heated metal was expressed through a die.
The heated metal was introduced into the pressure chamber or container and a
check disc of dished, corrugated or like expansible form was placed in the pressure
chamber between the hydraulic plunger and the heated metal and next to the
latter, the check disc serving to prevent the heated, metal squeezing backward past
the plunger.
In carrying the present invention into effect, instead of forming the check disc
of dished, corrugated or equivalent shape it is formed with a plain surface and of
the same diameter as the bore of the pressure chamber or container, or approxi-
mately so, whilst the mouth of the pressure chamber or container is,' beyond that
part which is occupied by the heated metal, internally formed with a gradual flare
or bevel.
-
By this arrangement of parts, the check disc' may be readily introduced into''the
flared mouth of the pressure chamber, which will act to centralise. it without "the
necessity for any delicate manipulation.
The check disc will, on the advance of the plunger, be forced into the bore of
the pressure chamber and effectually prevent the back passage of the heated metal
between the plunger and the walls of the pressure chamber.
And, in order that the said invention may be more clearly understood and
readily carried into effect, I will proceed, aided by the accompanying drawings,
more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a horizontal section of an apparatus for the manufacture of wire,
rods or bars having the present invention applied thereto and showing the position
of the parts immediately after the insertion of the check disc.
Figure 2 is a similar view of part thereof.
Figure 3 is a similar view but showing the plunger advanced a short distance
and the check disc carried into the cylindrical bore of the container.
Figure 4 is a face view of the check disc separately, and,
Figure 5 is an edge view thereof.
In the several figures, in which like parts are indicated by similar letters of
reference, Figures to 5 are drawn to an increased scale with respect to Figure 1.
a represents the pressure chamber or container, within the bore a' of which is
placed the heated metal a to be operated upon and this metal is acted upon by a
hydraulic or other ram or plunger b the end of which is bevelled to engage a
correspondingly recessed heated block of metal b' in advance of which is a check
disc cand the heated metal is forced through the die d which is carried by the
die holder and the metal issues from the die d as a wire, rod or bar ¹ of the
required form.
"
Thus far the parts are similar to those which are at present known and in use.
According to the present invention, however, instead of forming the check disc c
of corrugated or other shape'in transverse section, it is formed with a plain surface
as shown more particularly at Figures 4 and 5 and of the same diameter, or
approximately so, as the cylindrical parts of the bore a¹ of the pressure chamber
or container u, whilst the mouth of the bore a' of the pressure chamber or con-
tainer a is, beyond the cylindrical part, which is occupied by the heated metal x,
internally formed with a gradual flare or bevel a¹*.
By this arrangement of parts, the check disc may be readily placed in the flared
part a of the mouth of the bore a¹ of the pressure chamber or container a and
Buch flared mouth will act to centralise the check disc c without the necessity
for any delicate manipulation.

page_text: The check disc c will, on the advance of the plunger b, be forced into the
cylindrical bore a¹ of the pressure chamber or container a and prevent the back
passage of the heated metal between the block of the plunger b and the walls
of the pressure chamber a.
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 means or apparatus for the manufacture of tubes, wire, rods or bars from
various copper alloys and other metals, a pressure chamber or container formed with
a bore generally of cylindrical shape but flared or bevelled at one end thereof, sub-
stantially as herein shown and desribed and for the purpose stated.
2. In means or apparatus for the manufacture of tubes, wire, rods or bars from
various copper alloys and other metals, the combination of a pressure chamber or
container formed with a bore generally of cylindrical shape but flared or bevelled
at one end thereof, and a check disc of approximately the same diameter as said
cylindrical bore, substantially as herein shown and described and for the purpose
stated.
3. In means or apparatus for the manufacture of tubes, wire, rods or bars from
various copper alloys and other metals, the combination of a pressure chamber or
container formed with a bore generally of cylindrical shape but flared or bevelled
at one end thereof and a flat or plain check disc approximately of the same
diameter as said cylindrical bore, substantially as herein shown and described and
for the purpose stated.
Dated this 20th day of Januar 1900
VAUGHAN & SON,
Agents for the Applicant.