Year: 1883

page_text: Wo EDWIN JENKINS and ALEXANDER LAW, both of Melbourne, Founders, and
WILLIAM PRICE of Carlton, Ironworker, all in the Colony of Victoria, Australia,
seck leave to amend the Specification of Letters Patent N° 3038 of 1883, as shown
in red ink in the copy of the original Specification hereunto annexed as follows,
viz:-On page 2, line 19 wo insert after the word "castings" the words "having
a similar hard or brittle character, that is to say, a hardness which renders it
impracticable to operate upon them with the ordinary tools used in perforating
or in turning, shaping or otherwise cutting metals." In line 34 we insert after
the word "temperature" the words "(say to a cherry red)." And on page 3,
line 6 we insert after the word "other" the word "hard."
22
"
Our reasons for making this amendment aro as follow. We have been advised
that the said Specification is somewhat ambiguous with respect to certain parts
of the description of our improved process; and we wish to avoid the alleged
ambiguity by the addition of the above words. The Patent has been duly assigned
to us.

page_text: In the matter of the application made by Edwin Jenkins, Alexander Law and
William Price for leave to amend the Specification of Letters Patent No. 3038
of 1883.
I hereby grant leave to the said Edwin Jenkins, Alexander Law and William-
Prico (the assignees of the said Letters Patent) to amend the said Specification
in the manner proposed.
H. READER LACK,
Comptroller General.

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake,
and Co. Patent Agents, Southampton Buildings London, for an Invention
of "AN IMPROVED PROCESS OF ANNEALING CHILLED AND OTHER IRON
CASTINGS communicated to him from abroad by Edwin Jenkins and
Alexander Law both of Melbourne, Founders and William Prico of Carlton,
Ironworker, all in the Colony of Victoria Australia
"J
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 19th June 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co., Patent
Agents, Southampton Buildings, London "AN IMPROVED PROCESS OF ANNEALING
CHILLED AND OTHER IRON CASTINGS" [A communication to him from abroad by
Edwin Jenkins and Alexander Law both of Melbourne, Founders and William
Price of Carlton, Ironworker, all in the Colony of Victoria Australia]
This improved process of annealing chilled and other iron castings consists
essentially in suddenly immersing them, when at a given temperature, in a liquid;
and the object is to mako them, so that they can be punched, bored, tapped and
so on as readily as wrought metal. At present they are too brittlo for this kind of
treatment but by this improved process they are converted into such a condition
as to be readily manipulated in this way.
Tho particular point in the process is the temperaturo at which the metal is to
be dipped into the liquid, this point is just when it is reduced to a dull red heat,
when the redness is about to disappear.
The liquid in which it is immersed may be of any character not known to
be inimical to the character of iron, such as acids, and acid salts, but the best
results have been obtained from a solution of treacle and water at a specific gravity
of 1.005.
When the castings can be taken from the chill, or from the sand sufficiently
hot for the process I dip them directly into the liquid, but when they cannot
retain the proper heat for the act of dipping, I re-heat them in an oven or
chamber a little beyond the necessary temperature and then allow them to cool
to the point of dull redness as before described when I plunge them into a liquid as
before stated and allow them to cool when the process is completed.
The inventors of this process have tried various kinds of liquids in which to dip
the castings, and found them all to answer more or less well so long as acids
and acid salts were avoided, but they have found that the solution of treacle
and water at the gravity mentioned gives the best results. They do not
however confine themselves to any particular kind of liquid in which to dip
the castings.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Scal Patent Office on the
15th December 1883.
WILLIAM ROBERT LAKE of the firm of Haseltine, Lake, & Co. Patent Agents,.
Southampton Buildings, London
" AN IMPROVED PROCESS OF ANNEALING
CHILLED AND OTHER IRON CASTINGS"-A communication to me from abroad by
Edwin Jenkins and Alexander Law, both of Melbourne, Founders, and William
Price of Carlton, Ironworker, all in the Colony of Victoria, Australia
This invention relates to an improved process of annealing chilled and other
iron castings having a similar hard or brittle character, that is to say, a hardness
which renders it impracticable to operate upon them with the ordinary tools used
-in-perforating or in turning, shaping or otherwise cutting metals and consists
essentially in suddenly immersing them, "when at a given temperature, into a
liquid. The object of the said invention is to make the said articles so that they
can be punched, bored, tapped and so on as readily as wrought metal. At present
they are too brittle for this kind of treatment, but by this improved process
they are converted into such a condition as to be readily manipulated in this.
manner.
The metal must be dipped into the liquid just when the said metal is reduced to
a dull red heat, that is when the rodness is about to disappear.
The liquid in which the metal is immersed may be of any character not known
to be inimical to the character of iron, such as acids and acid salts, but the best
results have been obtained from a solution of treacle and water at a specific
gravity of 1-005.
When the castings can be taken from the chill, or from the sand sufficiently hot.
for the process, I dip them directly into the liquid, but when they cannot retain
the proper heat for the act of dipping, I re-heat them in an oven or chamber
a little beyond the necessary temperature (say to a cherry red) and then allow
them to cool to the point of dull redness as before described, when I plunge them
into a liquid as before stated, and allow them to cool, when the process is
completed.
Various kinds of liquids in which to dip the castings have been tried, and all
have been found to answer more or less well, so long as acids and acid salts were
avoided, but the solution of treacle and water at the gravity mentioned gives the
best results. I do not however confine myself to any particular kind of liquid in
which to dip the castings.
Having thus fully described the said invention as communicated to me by
my foreign Correspondents, and the manner of performing the same, I wish it
understood that I claim :-
The sudden immersion of chilled and other hard iron castings, when at a
dull red heat, into a liquid, and preferably into a liquid consisting of treacle

page_text: and water of a specific gravity of 1-005, substantially as, and for the purposes,
herein described.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this Fifteenth day of December in the year of Our Lord
One thousand eight hundred and eighty three.

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake,
and Co. Patent Agents, Southampton Buildings London, for an Invention
of "AN IMPROVED PROCESS OF ANNEALING CHILLED AND OTHER IRON
CASTINGS communicated to him from abroad by Edwin Jenkins and
Alexander Law both of Molbourne, Founders and William Price of Carlton,
Ironworker, all in the Colony of Victoria Australia
"
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 19th June 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co., Patent
Agents, Southampton Buildings, London "AN IMPROVED PROCESS OF ANNEALING
CHILLED AND OTHER IRON CASTINGS" [A communication to him from abroad by
Edwin Jenkins and Alexander Law both of Melbourne, Founders and William
Price of Carlton, Ironworker, all in the Colony of Victoria Australia]
This improved process of annealing chilled and other iron castings consists
essentially in suddenly immersing them, when at a given temperature, in a liquid;
and the object is to make them, so that they can be punched, bored, tapped and
so on as readily as wrought metal. At present they are too brittle for this kind of
treatment but by this improved process they are converted into such a condition
as to be readily manipulated in this way.
The particular point in the process is the temperature at which the metal is to
be dipped into the liquid, this point is just when it is reduced to a dull red heat,
when the redness is about to disappear.
The liquid in which it is immersed may be of any character not known to
be inimical to the character of iron, such as acids, and acid salts, but the best
results have been obtained from a solution of treacle and water at a specific gravity
of 1.005.
When the castings can be taken from the chill, or from the sand sufficiently
hot for the process I dip them directly into the liquid, but when they cannot
retain the proper heat for the act of dipping, I re-heat them in an oven or

page_text: chamber a little beyond the necessary temperature and then allow them to cool
to the point of dull redness as before described when I plunge them into a liquid as
before stated and allow them to cool when the process is completed.
The inventors of this process have tried various kinds of liquids in which to dip
the castings, and found them all to answer more or less well so long as acids
and acid salts were avoided, but they have found that the solution of treacle
and water at the gravity mentioned gives the best results. They do not
however confine themselves to any particular kind of liquid in which to dip
the castings.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the
15th December 1883.
ANNEALING
WILLIAM ROBERT LAKE of the firm of Haseltine, Lake, & Co. Patent Agents,
OF
"AN IMPROVED PROCESS
Southampton Buildings, London
CHILLED AND OTHER IRON CASTINGS "-A communication to me from abroad by
Edwin Jenkins and Alexander Law, both of Melbourne, Founders, and William
Price of Carlton, Ironworker, all in the Colony of Victoria, Australia
This invention relates to an improved process of annealing chilled and other
iron castings and consists essentially in suddenly immersing them, when at a
given temperature, into a liquid. The object of the said invention is to make
the said articles so that they can be punched, bored, tapped and so on as readily
as wrought inetal. At present they are too brittle for this kind of treatment, but
by this improved process they are converted into such a condition as to be readily
manipulated in this manner.
The metal must be dipped into the liquid just when the said metal is reduced to
a dull red heat, that is when the redness is about to disappear
The liquid in which the metal is immersed may be of any character not known
to be inimical to the character of iron, such as acids and acid salts, but the best
results have been obtained from a solution of treacle and water at a specific
gravity of 1.005.
When the castings can be taken from the chill, or from the sand sufficiently hot
for the process, I dip them directly into the liquid, but when they cannot retain
the proper heat for the act of dipping, I re-heat them in an oven or chamber
a little beyond the necessary temperature and then allow them to cool to the
point of dull redness as before described, when I plunge them into a liquid as
before stated, and allow them to cool, when the process is completed.
Various kinds of liquids in which to dip the castings have been tried, and all
have been found to answer more or less well, so long as acids and acid salts were
avoided, but the solution of treacle and water at. the gravity mentioned gives the

page_text: best results. I do not however confine myself to any particular kind of liquid in
which to dip the castings.
Having thus fully described the said invention as communicated to me by
my foreign Correspondents, and the manner of performing the same, I wish it
understood that I claim :-
The sudden immersion of chilled and other iron castings, when at a dull red
heat, into a liquid, and preferably into a liquid consisting of treacle and water
of a specific gravity of 1.005, substantially as, and for the purposes, herein
described.
In witness whereof I the said William Robert Lake have hereunto set my hand
and seal this Fifteenth day of December in the year of Our Lord One thousand
eight hundred and eighty three.
PART TI
ROBT LAKE