AN IMPROVED. MODE OF CASTING HINGES
Year: 1878

page_text: LETTERS PATENT to John Tyler Barnsley Bennett, of Birmingham, in the.
County of Warwick, Manufacturer, for the Invention of "AN IMPROVED. MODE
OF CASTING HINGES.”
Sealed the 11th March 1879, and dated the 13th September 1878.
PROVISIONAL SPECIFICATION left by the said John Tyler Barnsley Bennett,
at the Office of the Commissioners of Patents on the 13th September 1878.
JOHN TYLER BARNSLEY BENNETT, of Birmingham, in the County of Warwick,
Manufacturer. AN IMPROVED MODE OF CASTING HINGES."
"
The object of this Invention is so to construct hinges that they shall be superior
in finish and of less cost than those now generally sold.
As at present manufactured cast hinges are cast in sand and so require a great
deal of filing and dressing on account of their surfaces being rough.
By my improved mode of manufacture I cast hinges in metal chills, and thus
obtain a much better surface and produce castings which require less dressing,
In the first place I construct a suitably shaped chill or mould for the single side
of a hinge, and having placed within this chill a piece of wire of suitable length
(which is to form the hinge wire or pivot on which the hinge is to work) the
single side is cast. This single side is placed within a second chill, which chill is
so constructed to receive the single side and to form a mould for the second or
double side. Metal is then run into this chill and the casting is completed.
It will be understood that my improved hinges may be constructed of iron or
brass, or partly of iron and partly of brass, and that the said chills may be con-
structed to contain one or more hinges or parts of hinges.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by.
the said John Tyler Barnsley Bennett in the Great Seal Patent Office on the
11th March 1879.
JOHN TYLER BARNSLEY BENNETT, of Birmingham, in the County of Warwick,
Manufacturer. AN IMPROVED MODE OF CASTING HINGES."
"
The object of this Invention is so to construct hinges that they shall be superior
in finish and of less cost than those now generally sold.

page_text: As at present manufactured cast hinges are cast in sand, and so require a great
deal of filing and dressing on account of their surfaces being rough.
By my improved mode of manufacture I cast hinges in metal chills, and thus
obtain a much better surface and produce castings which require less dressing.
In the first place I construct a suitably sbaped chill or mould for the single side
of a hinge, and having placed within this chill a piece of wire of suitable length
(which is to form the hinge wire or pivot on which the hinge is to work) the
single side is cast. This single side is placed within a second chill, which chill is so
constructed to receive the single side and to form a mould for the second or double
side; metal is then run into this chill and the casting is complete.
It will be understood that my improved hinges may be constructed of iron or
brass, or partly of iron and partly of brass, and that the said chills may be made
to contain one or more hinges or parts of hinges, and that such hinges or parts of
hinges may be cast in such manner that the outer or inner knuckles may be formed
first.
In carrying my Invention into effect for casting the first part of a hinge con-
structed according to my Invention, part of the knuckle or knuckles in the said
chill is attached to the top portion of the chill, and the other part to the bottom,
the said knuckle being cut through or divided at a suitable angle so that the joint
of the two pieces forming the said knuckle shall be above the front or face of the
hinge.
That my Invention may be fully understood I have annexed Drawings of the said
chills or moulds, which I now proceed to describe.
Figure 1 shews a plan of the two parts of a mould or chill for casting one of the
sides of a hinge constructed according to my Invention; Figure 2 is a section
through the said mould or chill on the line A, B; and Figure 3 is a plan of the
mould or chill for casting the second side, and thus completing a hinge according
to my Invention.
Similar letters of reference refer to the same parts in the Figures.
a is the top side of a chill or mould, and 6 is the lower side or bottom; c, c,
(Figure 2) is the split knuckle, which is so arranged that the two parts shall
meet at a point above the level of the front of the face of the hinge.
Having now described the nature of my Invention, and the manner in which the
same may be carried into effect, without limiting myself to the precise details
herein-before described and illustrated in the Drawings, as these may to some extent
be varied or modified without departing from the nature of my said Invention,
I claim as the Invention to be protected by the herein-before in part recited
Letters Patent,-
Firstly. The casting of hinges in two separate parts in moulds or chills, sub-
stantially as herein-before described.
Secondly. The construction of the knuckle in two parts in the mould or chill,
having its joint above the front of the face of the hinge, substantially as herein-
before described and as illustrated in the accompanying Drawings.
In witness whereof, I, the said John Tyler Barnsley Bennett, have hereunto
set my hand and seal, this Tenth day of March, One thousand eight hundred
and seventy-nine.