Improvements in Coating Metal Plates or Sheets with Tin and other Metals, and Apparatus therefor.
Year: 1889

page_text: Date of Application, 7th Mar., 1889
Complete Specification Left, 4th Dec., 1889-Accepted, 18th Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in Coating Metal Plates or Sheets with Tin and other
Metals, and Apparatus therefor.
We EDWARD LONES Works Manager of Althorpe House Lydney in the County of
Gloucester ROBERT DAVIES Tin-House Foreman of Sunnybank Lydbrook in
Gloucester aforesaid JOHN DAVIES Tin-House Foreman of Bath House Lydney
aforesaid and BENJAMIN ASTON WEBB Engineer of Station Row Lydney aforesaid
do hereby declare the nature of this invention to be as follows:-
The object of this our invention is to reduce to a minimum the manual labour
at the present time required for coating metal plates or sheets with tin and other
metals and so to perform this operation and with such appliances and apparatus that
the desired coating shall be effected with speed and regularity and in a very efficient
manner.
To carry out this object we take the plate as it comes from the water bosh and pass
it between one or more pairs of rollers covered with india rubber or other suitable
material to remove any excess of water therefrom whence the plate passes into a
grease rack or into a trough wherein are a series of rollers revolving in grease by
which the plate is taken through this trough. According to another method the
plate after leaving the water bosh is immersed in a flux box and the india rubber or
other rollers may if desired be dispensed with. The plate so treated according to one
of the aforesaid methods next passes into the coating pot wherein it is caught and
held on and by arms or catches or other appliances made therefor and mounted on a
revolving wheel or rotary carrier and thus is taken through this coating pot. The
plate next passes into the dipping pot wherein are a series of rollers revolving in
metal by which it is caught and thus taken through this dipping pot. The plate
next passes between one or more pairs of brushes which either may be rotated
preferably in the direction in which the plate is moving but at an increased speed
or may be stationary and so formed and fitted as to be capable when desired of
presenting different surfaces to the plate and the requisite oil is supplied to these
brushes either from a vessel overhead or through the hollow and perforated axles or
shafts thereof. The plate next passes into the cradle of a double grease pot wherein
it is passed through the usual series of rollers of which one an upper one is preferably
divided into two halves separately mounted and the plate is then finished off in the
usual manner.
All these aforesaid several apparatus may be constructed and formed in any usual or
convenient manner and the plate may be taken from the one stage to the next stage
of the treatment by hand or by any suitable appliance or contrivance but preferably
the water bosh and the grease rack or the grease trough or the flux box and the
coating pot and the dipping pot and the grease pot are so placed in respect of each
other and such rollers and guides and other appliances are mounted and fitted and
arranged in and between the same that the plate is taken from the one stage to
the next stage of the treatment without any manual or other labour being caught
and guided and led by these rollers and guides and other appliances as it issues from
the one apparatus and delivered thereby into the next apparatus.
A QUA

page_text: COMPLETE SPECIFICATION.
Improvements in Coating Metal Plates or Sheets with Tin and other
Metals, and Apparatus therefor.
We EDWARD LONES Works Manager of Althorpe House Lydney in the county
of Gloucester ROBERT DAVIES Tin-House Foreman of Sunnybrook Lydbrook in
Gloucester aforesaid JOHN DAVIES Tin-House Foreman of Bath House Lydney
aforesaid and BENJAMIN ASTON WEBB Engineer of Station Row Lydney aforesaid
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 object of this our invention is to reduce to a minimum the manual labour
that is at the present time required in and for the process of coating metal plates or
sheets with tin and other metals and at the same time so to perform this operation and
with such appliances and apparatus that the desired coating shall be performed and
effected with speed and regularity and in a very efficient manner.
In order the more clearly to explain this our invention and in what manner the
same is to be performed we refer to the accompanying drawing wherein we have
shewn a very convenient and efficient and therefore suitable form and arrangement
of our complete apparatus for performing and effecting with a minimum of manual
labour the various processes or stages of treatment necessary and usual for coating
metal plates or sheets with tin and other metals.
Figure 1 is a longitudinal vertical section of this complete apparatus and Figure 2
is a plan of the same.
We take the plate or sheet that is to be coated as it comes from the water bosh A
and according to the arrangement shewn in the drawing this plate then passes between
one or more pairs of rollers B made of or covered with india rubber or other similar
and suitable material to remove any excess of water therefrom which excess if any can
pass back into the water bosh A through the trough B'.
The plate then according to this arrangement passes into a grease trough C wherein
are a series of pairs of rollers D revolving in grease which rollers may be made of
wood or metal or other suitable material and may if and when desired be covered with
any suitable substance and by these pairs of rollers D the plate is caught and taken
through the grease in this trough C.
According to another arrangement which may be employed if and when it may be
deemed expedient or desirable so to do although we prefer the arrangement herein-
before described and shewn in the drawing we may dispense with the rollers B and
the trough C with the rollers D aforesaid and instead thereof we may immerse the
plate after it has left the water bosh in any usual and convenient flux box in the
ordinary manner.
The plate so treated according to one of the aforesaid methods and arrangements
then passes into or is placed in a coating pot E where it is held in and between
suitable guides F preferably of a corrugated form as shewn in Figure 1 and in this
coating pot E is properly mounted a revolving wheel or rotary carrier G on the
periphery or on the arms whereof are formed a series of suitable catches or notches H
and as this carrier G revolves one of these notches H catches the plate that is
between the guides F as aforesaid and carries and takes the same through the metal
in this pot E. These notches H are preferably so arranged and formed on the
rotary carrier G that each plate when so caught therein as aforesaid overlaps the next
plate in front as shewn in Figure 1.
The plate is then delivered off and from the rotary carrier G aforesaid to and
between a series of rollers K preferably made of metal which take the same out of this
pot E and pass it over into a dipping pot L wherein are a series of pairs of rollers M
revolving in metal which rollers also are preferably made of metal and by these pairs
of rollers M the plate is caught and taken through the metal in this pot L.
The plate is then delivered from and by the last pair of rollers M aforesaid to and

page_text: between one or more pairs of brushes N which brushes either may be rotated
preferably in the direction in which the plate is moving but at an increased and
greater speed or may be stationary in which case they would preferably be so formed
and fitted and arranged in any usual and convenient manner as to be capable if and
when desired of presenting different surfaces to the plate. The requisite oil is
supplied to these brushes N either from a vessel overhead or above the same or as is
perhaps preferable and as is shewn in the drawing through the hollow axles or
shafts n thereof which are perforated to allow the exit of the oil therefrom.
The plate is then drawn out from between these brushes N aforesaid by one or
more pairs of rollers P which are preferably made of metal and the plate then passes
into or is placed in the cradle Q of an ordinary double grease pot R wherein it is
passed through the usual series of rollers S on its way thercout but instead of these
rollers being all of the same length as is usual one roller T of the upper pair of rollers
is divided at or about the middle of its length into two preferably equal parts which
can be mounted in separate bearings and thus be rendered more rigid than is
ordinarily the case.
The plate is then finished off in the ordinary and usual manner.
It is sufficiently obvious therefore that when our whole apparatus is made and
formed and arranged as herein before described and as shewn in the drawing the
manual labour required in and for causing the plates to pass through the aforesaid
processes or stages of treatment has been very greatly reduced if not reduced to a
minimum while it is also obvious that these processes or stages of treatment will
be so passed through by the plates speedily regularly and efficiently as is desired.
The several parts of this apparatus and the appliances therein are preferably so
placed in respect of each other that the plates are in little or no danger of being or
getting or falling out of their proper positions or courses and to still further ensure
that the plates will and must always pass along properly and safely in their desired
courses as is shewn in the drawing it is very convenient to fit suitable guides V for
is shewn in
this purpose where necessary or expedient so to do it may be as
Figure 1 above and below the plates between the rollers B and D in the trough C
also below the rotary carrier G in the pot E also above and below the plates between
the rollers K and between the rollers K and M in tho pot L and between the
rollers M and the brushes N and the rollers P and also from the rollers P to guide
and steady the plates as they pass into or are placed in the cradle Q all which
guides V may be formed and fitted and arranged in any convenient and desirable
manner.
All the rollers and the rotary carrier and the brushes if rotary can very conveniently
be and preferably are geared together in any proper and usual manner to cause
them all to revolve in the right directions and at their several desired speeds and when
as is hereinbefore described and as is shewn in the drawing the notches H in the
rotary carrier G are so arranged that the plates while on this carrier G overlap each
other the rollers K and therefore all the following rollers are caused to revolve at
such a speed that these plates no longer overlap each other while passing between
these rollers or that is to say when the apparatus is constructed in this manner
the plates pass more slowly through the pot E than they pass through the succeeding
processes or stages of treatment and this is desirable and the rollers and the brushes
are preferably so mounted as to be adjustable in respect of each other whereby the
desired pressure can be exerted and put on the plates as they pass between each and
every pair of brushes and rollers.
When a flux box is to be used as hereinbefore described it can very conveniently
be formed by a transverse partition in the coating pot E and the trough C being
removed the water bosh A would be brought up close to this pot E so that the
plates on leaving this water bosh A would enter the flux box formed by this partition
thence passing through the coating pot E in manner as herein before described.
We have thus described and we have shewn in the accompanying drawing as is
hereinbefore stated a very convenient and efficient form and arrangement of our
apparatus for coating metal plates or sheets with tin and other metals but we would

page_text: have it clearly understood that we do in no wise limit ourselves to the exact forms of
our apparatus or of the several parts thereof as so described and shewn or to the
exact arrangement of the same also as so described and shewn for it is obvious that
each and every part of the apparatus may be so formed. aud made and may be so
placed and arranged in respect of the other parts of the apparatus as may be necessary
or expedient or desirable in each particular case.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
The method of and apparatus for coating metal plates or sheets with tin and
other metals substantially as hereinbefore described and shewn in the accompanying
drawing.