Improvements in and relating to Draw Plates used in Drawing Metals.
Year: 1895

page_text: Date of Application, 9th Jan., 1895
Complete Specification Left, 9th Oct., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Draw Plates used in Drawing
Metals.
I, ARTHUR WILLIAM BAKER of Orford View, Winwick Road, Warrington in
the County of Lancaster, Wire Drawer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the draw plates used in drawing metals and its object
is to enable the holes to be pricked with greater facility without weakening the
plates or impairing their quality or durability.
According to my improvements, I cast the holes in the plates approximately
about half way through and with such a swell around them as is formed when the
holes are produced in the usual manner by the steam hammer or otherwise. The
holes are finished in the usual way.
By this means the holes will be accurately set out, and will be the same in all
plates from the same mould. They will also have exactly the same substance and
strength to resist battering in use, as have the plates pricked in the customary
method. Moreover, the work being practically half done in the mould, the labour
of pricking will be correspondingly reduced.
Dated this 2nd day of January A.D. 1895.
WILLIAM E. HEYS,
Agent for the Applicant.
Improvements in and relating to Draw Plates used in Drawing
Metals.
I, ARTHUR WILLIAM BAKER of Orford View, Winwick Road, Warrington, in
the County of Lancaster, Wire Drawer, 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 the draw plates used in drawing metals, and its object
is to enable the holes to be pricked with greater facility without weakening the
plates or impairing their quality or durability.
According to my improvements, I cast the plates, and, in the process of moulding
and casting them I produce holes or depressions extending about half way through
the plates, and with such a swell or ridge around them as is produced in malleable
plates when the holes or depressions are formed in them in the usual manner by the
steam hammer or otherwise. Thus, I may take a plate of the ordinary construction
in which the holes or depressions have been formed according to the existing
methods, and I may use this as a pattern, or preferably, make a pattern with
similar depressions annular ridges bulges or swells, and use this pattern in moulding
my plates.
By this means the holes will be accurately set out, and will be the same in all
plates cast from the same pattern.

page_text: The castings are preferably made in steel, and the holes are finished or pricked
in them, through the bottoms of the cast depressions in the usual way.
Draw plates made as hereinbefore described will have the same substance and
strength to resist battering in use as have the plates pricked in the customary
manner. Moreover, the work being practically half done in the casting; the cost
of pricking will be correspondingly reduced.
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 :-
-
The hereinbefore described method of manufacture of draw plates which
consists in casting the plates with holes or depressions and ridges swells or bulges,
and finally pricking the holes through the bottoms of the depressions in the usual
manner, substantially as set forth.
Din oth day of Antahan & D 1905
W. E. HEYS & SON,
Agents for the Applicant.