Improvements relating to the Manufacture of Tin and Terne Plates and to Apparatus therefor.
Year: 1888

page_text: Date of Application, 11th Aug., 1888
Complete Specification Left, 29th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
PROVISIONAL SPECIFICATION.
Improvements relating to the Manufacture of Tin and Terne Plates
and to Apparatus therefor.
1. MAX FREDERICK HENRY LANTZ of 23 Boulevard de Strasbourg, Paris,
France, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
--
This invention relates to the manufacture of tin and terne plates and to apparatus
therefor.
The iron plates must have been scoured before they are tinned by means of the said
apparatus. A single passage of the iron plates through this apparatus is sufficient to
cover them with a uniform and regular layer of tin. The plates to be tinned are
caused to pass through a basin or vessel containing a suitable flux or a greasy sub-
stance, then between curved guides through a bath of molten tin, and next between
two rollers which turn in grease, such as tallow, or in palm-oil or the like, and which
are designed to remove the excess of tin adhering to the plates.
The apparatus constructed according to this invention comprises a trough or vessel
made of iron or other suitable material.
Upon the sides of this vessel are fixed cross pieces to which the rear ends of upper
and lower guide bars are secured. The upper guide bars are connected or integral
with a cross bar supported by the lateral walls of the said trough or vessel whilst the
others are connected or integral with a cross bar secured to a flange on the front part
of the trough or vessel.
In the space left between the extremities of the upper and lower guide bars in front
is placed a basin or hopper which is open at the top and bottom and contains a flux or
suitable composition through which the plates are caused to pass before they enter the
bath of molten tin. This hopper can for example contain a composition formed of
4 parts of hydrochloric or muriatic acid

page_text: The plates introduced into the hopper are conducted between the aforesaid guide
bars through the bath of tin as far as the above mentioned cross-pieces which extend
nearly to the rollers which rotate in grease, tallow, palm-oil, resin or the like. The
bearings of these rollers are held in place by cap pieces fixed by bolts so that they
cannot be lifted vertically and therefore cannot produce furrows or grooves upon the
metal plates, under treatment.
Against each of the bearings of one of the rollers bears a spring secured to the
extremity of a bolt which can be displaced so as to compress the said spring more or
less and thus vary the pressure with which the rollers are forced against each other.
When an iron plate which is conducted between the guide bars passes between the
rollers the latter cause it to move through the grease or resin which surrounds them,
and they remove the excess of tin which adheres to the plate. In order that this
passage of the metal plate between the two rollers can take place, it is necessary that
one of these rollers shall be able to yield in the horizontal direction a distance equal to
the thickness of the plate and press upon the latter, which result is obtained by means
of the aforesaid springs which bear against the brackets of one of the rollers.
For the introduction of metal plates between the rollers, use is made of pivoted
arms which are arranged to be displaced between the above mentioned guide bars and
to press against the rear end of the metal plates. These arms are mounted upon a
common axis which can be caused to oscillate through the medium of a handle or
the like.
A partition is provided for separating the greasy substance or resin surrounding the
rollers from the front part of the trough or vessel.
When bright tin plates are made by means of the improved apparatus the bath of
molten metal in the said trough or vessel is formed of pure tin, and the rollers are
caused to rotate in grease, palin-oil or tallow, but if this apparatus is used for the
manufacture of terne plate, the rollers rotate in resin and the metal bath contained in
the trough or vessel consists of an alloy of lead and tin.
Dated this 11th day of August 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: I, MAX FREDERICK HENRY LINTZ, of 40, Rue de Malte, Paris, France,
Manufacturer, 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:-
The plates to be coated in this apparatus are first pickled and scoured and then
passed through a vessel or hopper containing a suitable flux, then along or between
curved guides through molten tin or alloy contained in the coating trough or pot, and
next between two rolls which rotate in grease, such as tallow, or in palm oil or the
like, the rolls removing the excess of coating metal. I shall now describe the
invention with reference to the accompanying drawings.
"
Fig. 1 is a vertical longitudinal section through the apparatus, and fig. 2 a plan.
Upon the sides of the pot A, are fixed cross-pieces a, a, to which are secured the rear
ends of the upper guide bars B, B, and lower guide bars B1, B₁. The upper guide
bars B, are connected to or in one with a cross-bar C, which is supported on the side
walls of the pot, while the guides B', are fixed to, connected to, or in one with a
cross-bar D, which is secured to a flange c, on the front of the pot. The upper guide-
bars B, may be omitted when coating with tin. In the space left between the fore-
most ends of the guides B, B, B1, B₁, is placed the entrance flux box or hopper E,
which is open at the top and bottom and contains a suitable flux or composition for
the pickled and rinsed plates to pass through before passing into the bath of molten
tin or alloy. The composition may be composed of 4 parts of muriatic acid, 1 part of
zinc, 1/10 part of quicklime, and 1/10 part of charcoal dust. Or, under other circum-
stances, when the plates have been treated specially after the pickling and swilling, I
may use palm oil, grease, tallow, or other well known substance for the purpose, as
will be well understood by a practical manufacturer. The plates introduced into the
flux bopper E, are conduced between the aforesaid guide-bars B, B, B', B¹, through
the bath of molten metal or alloy until reaching the cross-pieces a, a, which reach
nearly up to the rolls F, F. These latter revolve in grease, palm oil, tallow, rosin, or
other suitable well known substance used for the purpose. The bearings for these
rolls are provided with caps G, fixed by bolts so that the rolls cannot rise vertically
and thus producing grooves or furrows on the plates under treatment. I, I, are arched
springs which bear each against a bearing of one of the rolls F, and are fitted at the
end of a screw bolt K, which can be adjusted so as to compress the said springs and
thus vary the pressure with which the rolls are forced against each other to squeeze off
the superfluous coating metal or alloy and to even the layer of coating, the grease
assisting this action. For the introduction of the plates into the nip of the rolls F,
the pivotted arms or levers M, are provided between the guides B, B, B¹, B', and
push against the rear end or edge of the plate. These arms M, are mounted upon a

page_text: common axis which can be oscillated through the medium of a handle L, or the like.
O is a partition for keeping the greasy substance or resin, in which the rolls F, rotate,
from the front part of the trough.
When coating with terne the rolls F, work in rosin.
Sometimes I employ another upper couple of finishing rolls.
By the arrangement shewn and described I employ only one pot of small dimensions
and containing a minimum quantity of coating metal or of alloy and of grease or rosin.
Sheets of 14 inches by 10 inches up to sheets of 3 or 4 feet in width and of any
length may be coated without altering the guides or otherwise changing the mechanism
according to the size of plate.
Having now particularly described and ascertained the nature of this Inven-
tion and in what manner the same is to be performed I declare that what I
claim is ;-
1. The combination of the pot A, the entrance flux hopper E, the guides B', B',
with or without the guides B, B, the rolls F, with elastic adjustment and the
partition O, substantially as set forth.
2. The levers M, L, for pushing the plates into the nip of the rolls.
3. The manufacture of tin and terne plates as and by apparatus constructed as
set forth
Dated this 29th day of October 1888.
MAX FREDERICK HENRY LINTZ.
By Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.