AN IMPROVED PROCESS FOR SEPARATING OR REMOVING THE TIN FROM SCRAPS OR CUTTINGS OF TINned or Terne PlATES
Year: 1873

page_text: LETTERS PATENT to Henry William Hauberg, of 5, Southampton
Buildings, in the County of Middlesex, for the Invention of "AN
IMPROVED PROCESS FOR SEPARATING OR REMOVING THE TIN FROM SCRAPS OR
CUTTINGS OF TINned or Terne PlATES.”
.
PROVISIONAL SPECIFICATION left by the said Henry William Hauberg
at the Office of the Commissioners of Patents, with his Petition,
on the 21st August 1873.
I, HENRY WILLIAM HAUBERG, of 5, Southampton Buildings, in the
County of Middlesex, do hereby declare the nature of the said Invention
for "AN IMPROVED PROCESS FOR SEPARATING OR REMOVING THE TIN FROM Scraps
OR CUTTINGS OF TINNED OR TERNE PLATES," to be as follows :-
This Invention relates to certain improvements on a former Invention
for which Letters Patent were applied for on the 10th day of May 1873,

page_text: Numbered 1708, by William Robinson, for "An Improved Process for
Separating or Removing the Tin from Scraps or Cuttings of Tinned or
Terne Plates, and in Apparatus for that Purpose." And the features of
novelty which constitute this present Invention consist,―
Firstly. In dispensing with portions of the apparatus described in the
Specification of the aforesaid former Invention.
And, Secondly. In operating direct upon the tinned scraps with the
fumes or vapour of heated quicksilver, thus effecting at one operation or
process the separation of the tin from the iron, instead of subjecting the
tinned scraps to several separate operations or processes as described in
the Specification of the aforesaid former Invention.
The following is an example of the manner of operating according to
this present Invention :-The tinned scraps are simply placed in a closed
vessel with a small quantity of quicksilver, and heat applied thereto
until vapour is given off from the quicksilver, this vapour coming into
contact with the tin effects the separation thereof from the iron most
perfectly.
If desirable the vapour of quicksilver may be generated in a separate
vessel and be introduced into another vessel containing the tinned scraps
that are to be operated upon. By these means the process is very much
simplified and expedited, and also rendered much less costly from the
fact of its not being necessary to cover the tinned scraps with the
quicksilver as by the former Invention, thereby reducing the quantity of
quicksilver employed to about one-thirtieth.
After the separation of the tin has been effected and the iron scraps
removed the mercury is allowed to pass into and distil in the condenser
described in the former Specification, and the tin alone remains in the
closed vessel, from which it may be removed and cast into ingots
ready for the market, and the mercury remains intact for succeeding
onerations.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Henry William Hauberg in the Great Seal Patent
Office on the 21st February 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
WILLIAM HAUBERG, of 5, Southampton Buildings, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent beating date the Twenty-first day of August, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs, and
successors, give and grant unto me, the said Henry William Hauberg,
Her special licence that I, the said Henry William Hauberg, my
exccutors, administrators, and assigns, or such others as I, the said
Henry William Hauberg, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "AN IMPROVED PROCESS FOR SEPARATING OR
REMOVING THE TIN FROM SCRAPS OR CUTTINGS OF TINNED OR TERNE PLATES,”
upon the condition (amongst others) that I, the said Henry William
Hauberg, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry William Hauberg, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, that is to say :—
This Invention relates to certain improvements on a former Invention
for which Letters Patent were applied for on the 10th day of May 1873,
Numbered 1708, by William Robinson, for "An Improved Process for
Separating or Removing the Tin from Scraps or Cuttings of Tinned or
Terne Plates, and in Apparatns for that Purpose." And the features of
novelty which constitute this present Invention consist,―

page_text: Firstly. In dispensing with portions of the apparatus described in the
Specification of the aforesaid former Invention.
And, Secondly. In operating direct upon the tinned scraps with the
fumes or vapour of heated quicksilver, thus effecting at one operation or
process the separation of the tin from the iron instead of subjecting the 5
tinned scraps to several separate operations or processes, as described in
the Specification of the aforesaid former Invention.
The following is an example of the manner of operating according to
this present Invention :-The tinned scraps are simply placed in a closed
vessel with a small quantity of quicksilver and heat applied thereto until 1
vapour is given off from the quicksilver; this vapour coming into
contact with the tin effects the separation thereof from the iron most.
perfectly.
If desirable the vapour of quicksilver may be generated in a separate
vessel, and be introduced into another vessel containing the tinned scraps 1
that are to be operated upon. By these means the process is very much
simplified and expedited, and also rendered much less costly from the
fact of its not being necessary to cover the tinned scraps with the quick-
silver as by the former Invention, thereby reducing the quantity of
quicksilver employed to about one-thirtieth.
2
After the separation of the tin has been effected and the iron scraps
removed the mercury is allowed to pass into and distil in the condenser
described in the former Specification, and the tin alone remains in the
closed vessel, from which it may be removed and cast into ingots ready
for the market, and the mercury remains intact for succeeding opera- 2
tions.
And in order to explain this Invention more fully I will now proceed
to describe the best means by which it may be carried into practical
effect, reference being had to the illustrative Sheet of Drawing accom-
panying these Presents and to the figure and letters of reference marked 3
thereon, as follows:-

page_text: The following is the method of operating with the above described
apparatus:-The vessel A is filled with tin scraps after having put about
10 pounds of mercury in the bottom thereof. This vessel is then closed
by means of the cover B, which is luted to prevent the escape of vapour.
The vessel A. is then placed in the furnace G by means of a crane or
otherwise. The heat of the furnace is then raised sufficiently to evaporate
the mercury contained in the vessel, the vapour operating as the
separating agent. The vapour is then conducted into the condenser of
any description, the simplest however being to lead the vapour into a
small vessel-containing water, as shown at C, where it instantly con-
denses, and the mercury falls to the bottom without loss ready to be
drawn off for future operations.
When the vapour has passed over the process is completed, and the
vessel can be lifted out of the furnace and put aside to cool before the
vessel is removed from the furnace. The pipe D should be closed by
means of a plug E to prevent the influx of cold air, which might cause
a too sudden cooling and even crack the said vessel, and also might spoil
the tin.
When the vessel has sufficiently cooled the lid B is removed, and the
scrap iron and tin (which will be found to be perfectly separated) taken
out, the tin being found at the bottom of the vessel.
In order to prevent the tin from sticking to the iron during cooling a
false bottom F is provided for the tin to run through.
A second vessel as above described may be provided ready charged to
put in the furnace whilst the other is cooling, thereby saving time and
fuel. Instead of generating the mercurial vapour in the same vessel it
may be generated in a separate one and injected into the vessel con-
taining the scraps to be operated upon.
I do not intend to limit or confine myself to the precise form of
apparatus above described, as the same may be varied.
Having now described and set forth my said Invention for "An
Improved Process for Separating or Removing the Tin from Scraps or
Cuttings of Tinned or Terne Plates," and the manner in which it may
be carried into practical effect, I would remark in conclusion that what
I claim as my Invention and desire to secure by Letters Patent, is
separating the tin from scraps or cuttings of tinned or terne plates by

page_text: means of the vapour of mercury, substantially as described and repre-
sented.
In witness whereof, I, the said Henry William Hauberg, have here-
unto set my hand and seal, this Twentieth day of February, in
the year of our Lord One thousand eight hundred and seventy- 5
four.