Improvements in Coating Iron, Steel, or other Metallic Plates with Tin, Terne, and other Mixtures.
Year: 1893

page_text: Date of Application, 1st Dec., 1893
Complete Specification Left, 1st Sept., 1894-Accepted, 6th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Coating Iron, Steel, or other Metallic Plates with
Tin, Terne, and other Mixtures.
I, FREDERICK WATKINS 14 Vaughan Street Llanelly Carmarthenshire Cashier
Tinplate Works do hereby declare the nature of this invention to be as follows:-
My invention has reference to the coating of iron, steel or other metallic plates
with tin, terne and other mixtures and it consists in the employment in the coating
process as hereinafter described of hard paraffin or paraffin wax or ozokerit or
earth wax or a combination of either of these substances or a combination of one
or more of them with palm oil or palm oil mixtures whereby I obtain a more
perfect coating of the plate and effect a saving in the cost of production.
66
The hard paraffin or paraffin wax, ozokerit or earth wax or a combination as
above described may be used in lieu of the usual flux in the ordinary "tin pot" or
in lieu of the palm oil, tallow, or other material commonly used in the ordinary
grease pot" or in lieu both of the usual flux in the "tin pot" and of the palm
oil or material in the "grease pot," I preferably use it in one pot. which like some
"tin pots" has a vertical partition partly dividing the pot into two compartments
an opening or communication being left between the two compartments under the
partition. This pot is supplied with tin, terne or other metal which has been.
refined the metal being free to flow freely at hottom to both sides of the partition
and its surface or level being above the opening between the two compartments.
The hard paraffin or wax or combination as aforesaid is caused to float on the
molten metal on one or both sides of the partition and if on only one side
then palm oil or palm oil mixture or other suitable greasy material is caused to
float on the other side. The plates to be coated having been "pickled
passed down through the wax in the one compartment into the molten metal, then
through the opening above described into the other compartment and lifted
through the wax or palm oil or other material in the other compartment; they
are then passed through the roll-machine, working in this wax or palm oil or other
material.
Dated this 1st do of Darshan 1802
are
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Chartered Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Coating Iron, Steel, or other Metallic Plates with
Tin, Terne, and other Mixtures.
I, FREDERICK WATKINS of 14 Vaughan Street, Llanelly, Carmarthenshire,
Cashier Tin Plate Works, 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:-
My invention has reference to the coating of iron, steel or other metallic plates
with tin, terne and other mixtures, and it consists in the employment in the coating
process as hereinafter described of hard paraffin or paraffin wax or of ozokerit or
earth wax or of a combination of these substances, or the use of one or both of
them in combination with or in conjunction with palm oil or palm oil mixture or
other suitable greasy material whereby I obtain a more. perfect coating of the
LD

page_text: plate, effect a saving in the cost of production and avoid the use in the coating
process of substances of any poisonous, deleterious or objectionable nature, such
for example as spirits of salts and hydrochloric acid which are generally employed
in the fluxes used in tinning. I also by my invention minimize the chances of
oxidation, as the metal when my process is followed is entirely covered by the wax,
or a combination of substances as aforesaid.
k
"
The hard paraffin or paraffin wax, ozokerit or earth wax or a combination as
above described may be used in lieu of the usual flux in the ordinary "tin pot or
in lieu of the palm oil, tallow or other material commonly used in the ordinary
'grease pot," or in lieu both of the usual flux in the "tin pot" and of the palm oil
or material in the "grease pot"; 1 preferably use it in one pot which like some
"tin pots" has a vertical partition partly dividing the pot into two compartments,
an opening or communication being left between the two compartments under the
partition. This pot is supplied with tin, terne or other metal which has been
refined, the metal being free to flow freely at bottom to both sides of the partition,
and its surface or level being above the opening between the two compartments.
The hard paraffin or wax or combination as aforesaid is caused to float on the
molten metal on one or both sides of the partition and if on only one side then the
combination of wax with palm oil &c. as aforesaid or palm oil or palm oil mixture
or other suitable greasy material is caused to float on the other side. The plates
to be coated having been "pickled " are passed down through the wax in the one
compartment into the molten metal, then through the opening above described into
the other compartment and lifted out of the molten metal through the wax or
combinations as aforesaid or palm oil or other material in the other compartment;
they are then passed through the roll-machine, working in this wax or palm oil or
other material.
Figure 1 of the accompanying drawings represents in vertical section a pot
suitable for use in carrying out my invention, the said pot having a vertical
partition as herein before described. a is the pot and the vertical partition
dividing the upper part of the pot into two compartments which communicate
freely with each other below the partition. c represents the molten tin, terne or
other metal which has been refined, the surface or level of same being above the
bottom of the partition b. d represents the wax in the first compartment and e the
palm oil or mixtures in the other compartment. f is a guide down which the plate
to be coated is passed through the wax d and metal c to the forked lifter y, the
plate during this movement being caused by the guide to pass under the partition b.
The plate is then drawn up by means of the lifter g through the metal and palm
oil or mixtures e into the roll machine being guided in its upward movement by
the guides i kl. The roll machine is of ordinary construction. Any usual gearing
may be employed for raising and lowering the lifter J.
Figure 2 is a vertical section of another pot also suitable for use in carrying out
my invention. This pot has no partition. a is the pot, c the tin or other metal,
d the wax, a forked holder, h the roll machine and kl guides to this machine.
The plate to be coated is placed in the holder f when this is drawn up to the top
of the pot; the holder with the plate is then moved down through the wax d into
the metal c until the top edge of the plate is below the surface of the metal; then
the holder with the plate is moved up out of the metal and through the wax
and the plate passes between the guides k l into the roll machine h.
The two pots shown in the figures are only intended as illustrations of convenient
means of carrying out my invention which is not limited to the use of pots of the
forms shown.
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 :-
1. In the coating of metallic plates with tin, terne or other mixtures, passing
the plates through hard paraffin or paraffin wax or ozokerit or earth wax or a

page_text: combination of these substances into the tin, terne or other mixture and then out
of this mixture through a combination of wax with palm oil &c. as aforesaid or
through palm oil or palm oil mixture or other suitable greasy material, substantially
as and for the purpose herein before described.
2. In the coating of metallic plates with tin, terne or other mixtures, passing
the plates through hard paraffin or paraffin wax or ozokerit or earth wax or a
combination of these substances into the tin, terne or other mixture and then out
of this mixture through hard paraffin, paraffin wax, ozokerit or earth wax or
a combination of these substances, substantially as and for the purpose hereinbefore
described.
Dated this 30th day of August 1894.
J. C. MEWBURN & ELLIS
55 and 56, Chancery Lane, London, Patent Agents.