IMPROVEMENTS IN HINGES
Year: 1884

page_text: I ALBERT WALSTEAD CHESTERMAN Tool Maker N° 38 Queen St. Sparkbrook
in the County of Worcester do hereby declare the nature of my invention for
IMPROVEMENTS IN HINGES to be as follows :-
This invention consists in making hinges by a process of drawing reducing and
compressing a circular or other shaped tube into the required sectional form as
hereinunder further explained.
In carrying out my invention I take a metal tube preferably of a circular shape
and pass it through a die formed in the following manner.
The die is made of a circular or other concave shape at its back end corresponding
with the shape of the tube, the die is then tapered towards the front end
terminating in the desired sectional shape of hinge.
The tube when passed through the die will be compressed into the sectional
shape usually adopted in making hinges that is to say a flat portion is formed of
convenient width to fasten on to wood work or other substance where hinges are
employed one edge of the said flat portion being formed into the usual circular
shape to receive the pivot wire.
The metal tubes having been drawn and compressed into the desired sectional
shape are then cut into pieces from half an inch in length suitable for small boxes
to several feet in length suitable for Piano fronts.
The complete hinge is put together in the following manner.
Two pieces having been cut off the required length say three inches, the circular
portion of the first half is then partly cut away leaving two three or more
projecting knuckles the circular shaped portion of the second half is cut with
recesses to receive the projecting knucles on the first half, the knucles on the
second half fitting in a like manner into the spaces in the first half. The two
halves are then placed together interlocking each other; The pivot wire being then
passed through the whole of the knuckles forms the joint thus completing the
hinge.
Hinges made by this drawing process will be much stronger than hinges bent
into shape by press work; All the various kinds of pressed hinges are weak in
consequence of being formed by simply curling over the flat metal to form the
knuckles; in most cases an open joint being left to weaken the hinge where
strength is greatly needed namely at the root of the knuckle. Hinges made by
this drawing process will be seamles, the knuckles presenting a similar appearance
to the knuckles of solid cast hinges drilled.
Dated this 6th day of March 1984

page_text: I ALBERT WALSTEAD CHESTERMAN Tool Maker of 38 Queen Street Sparkbrook
in the County of Worcester do hereby declare the nature of my invention for
IMPROVEMENTS IN HINGES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention consists in making hinges by a process drawing reducing and
compressing a circular or other shaped tube into the required sectional form as
hereunder further explained.
I carrying out my invention I take a metal tube preferably of a circular shape
and pass it through a die formed in the following manner.
The die is made of a circular or other concave shape at its back end corre-
sponding with the shape of the tube, the die is then tapered towards the front end
terminating in the desired sectional shape of hinge.
The tubo when passed through the die will be compressed into the sectional
shape usually adopted in making hinges that is to say a flat portion is formed of
convenient width to faston on to wood work or other substance where hinges are
employed, one edge of the said flat portion being formed into the usual circular
shape to receive the pivot wire.
The metal tubes having been drawn and compressed into the desired sectional
shape are then cut into pieces from half an inch in length suitable for small boxes
to several feet in length suitable for piano fronts.
The complete hinge is put together in the following manner.
Two pieces having been cut off the required length, say three inches, the circular
portion of the first half is then partly cut away leaving two, three or more
projecting knuckles, the circular shaped portion of the second half is cut with
recesses to receive the projecting knuckles in the first half, the knuckles on the
second half fitting in a like manner into the spaces in the first half, the two halves
are then placed together interlocking each other the pivot wire being then passed
through the whole of the knuckles forms the joint, thus completing the hinge.
Hinges made by this drawing process will be much stronger than hinges bent
into shape by press work. All the various kinds of pressed hinges are weak in
consequence of being formed by simply curling over the flat metal to form the
knuckles, in most cases an open joint being left to weaken the hinge where
strength is greatly needed, namely at the root of the knuckle. Hinges made by
this drawing process will be seamless; the knuckles presenting a similar appearance
to the knuckles of solid cast hinges drilled.
I will now proceed to describe with reference to the accompanying drawings the
manner in which the binge is made.
Figure 1 is a section of an ordinary solid drawn tube.
Figure 2 is a longitudinal elevation shewing the tube compressed at end A into
a shape suitable for making hinges.
Figure 3 is an end view of figure 2 simply shewing the shape of extreme end A.
Figure 4 represents a complete hinge made out of the tube after it has been
drawn into the shape shewn at Figure 3.
Figure 5 represents an end view of figure 4.
In making my improved hinges I select a tube, which may be oval, rectangular,
exigonal octagonal or any other sectional shape, but I by preference select the
circular section represented at Figure 1.
I then provide dies made in the usual and ordinary manner, except that the
outlet side is formed into the sectional shape represented at Figure 3, with the
necessary amount of space left for the wedge used in such like cases.

page_text: The tube having then been passed through the dies, would be compressed in its
entire length to the form represented at Figure 3.
The compressed tube would then be cut into suitable lengths so that each piece
would form the half of a complete hinge as represented at Figure 4; The half of
complete hinge H would be cut away at the rounded portion so as to leave
projecting knuckles at B. C. D. the half of complete hinge J would be cut away at
the round portion so as to leave projecting knuckles at E F G, the knuckles of one
half having been passed into the spaces of the other half, the hinge would be
completed by introducing a pivot wire into the hole K Fig 5.
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
1st The drawing, reducing or compressing of a circular or other shaped tube into
the sectional form represented at Figure 3 out of which to make seamless hinges.
2nd The making of hinges out of tube drawn, reduced or compressed into the
shape represented at Figure 3.
3rd The drawing reducing or compressing of a circular or other shaped tube
into the sectional form represented at Figure 3 irrespective of whether the tube
be what is technically called solid drawn, so long as it is a completed perfect
tube before introducing into the dies to be formed into the shape represented at
Figure 3.
Dated this 5th day of December 1884