Improvements in Machinery or Apparatus to be employed in Coating Metal Sheets or Plates with Tin or other Metal or Alloy.
Year: 1890

page_text: Date of Application, 19th Nov., 1890
Complete Specification Left. 19th Aug. 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus to be employed in
Coating Metal Sheets or Plates with Tin or other Metal or
Alloy.
I, DANIEL JENKINS of Morriston in the County of Glamorgan Engineer do
hereby declare the nature of this invention to be as follows:
My invention relates to improvements in machinery or apparatus to be
employed in coating metal sheets or plates with tin or other metal or alloy and the
object of my invention is to obtain a simple form of machine by the aid of which I
reduce the labour incident to the operation, and at the same time economise the
material employed therein.
For this purpose I separate the flux box from the tinning pot by means of a
partition and I pass the metal plate by hand down through the flux box under the
partition through the metal and up and over the wall of the tinning pot and at
the point where the metal plate leaves the tinning pot I pass it over another
division of the tinning pot forming a drainage pot, and in contact with the outer
wall thereof so that some of the superfluous tin will be removed and caught by
the drainage pot and I sometimes employ rollers brushes or doctors to act upon
both surfaces of the metal plate at this point with a similar object.
I conduct the metal plate from the tinning pot into the mouth of the dipping
pot by means of inclined ways which are continued into such mouth and down
which the metal plate slides by gravity, and I mount the lower continuations of
these inclined ways upon a shaft or axis of motion fitted with an external lever,
and 1 curve them at their lower ends so as to form fingers for the purpose herein-
after explained.
Within the dipping pot, and mounted upon axes of motion carried by a
vertically adjustable frame are several pairs of discs which receive the metal plates
from the inclined ways and these discs receive rotary motion by means of a rack
and pinion or an equivalent device such for example as an endless chain and chain
wheels operated by the attendant from above by means of a crank handle and
toothed or chain wheels first to carry the metal plate downward completely into
tlie dipping pot, and then by reversing the motion to carry the metal plate upward
into the grease pot which is located above and covers the dipping pot and is
provided with an opening formed with an extended flaring lip in its bottom through
which the metal plate passes and in order to bring the metal plate into alignment
with such opening the operative whilst still lifting the plate turns the lower
inclined ways or fingers upon their axis of motion thereby moving them.forward
and tilting the metal plate into a vertical position and the plate is thus tilted and
lifted into the grip of the first pair of finishing rolls at one operation
The rotary motion of the discs is discontinued when the metal plate comes within
the grip of the first pair of finishing rolls, and the plate is then carried through
the grease pot by successive pairs of rolls in the ordinary manner.
By the employment of discs fixed upon spindles of small diameter in lieu of
rolls for manipulating the plates, the metal will not be disturbed to the same
extent as heretofore and consequently less dross will be created and the metal will
therefore be kept purer.
In order to vertically adjust the disc frame and thus regulate the position of the
discs according to the size of the plates to be treated I employ a vertical screw
which works in a nut fixed to the frame and is capable of being rotated from
above by any suitable means.
By these means I so reduce the labour of passing a plate through the apparatus
that I am enabled to dispense with one operative and by reason of such a small

page_text: area of the surface of the metal being exposed to the atmosphere, I lessen the
usual evaporation and oxidation thereof.
Dated this 19th day of November 1890.
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.
COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus to be employed in
Coating Metal Sheets or Plates with Tin or other Metal or
Alloy.
1, DANIEL JENKINS of Morriston in the County of Glamorgan Engineer 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 relates to improvements in machinery or apparatus to be employed
in coating metal sheets or plates with tin or other metal or alloy and the object of
my invention is to obtain a simple form of machine by the aid of which I reduce
the labour incident to the operation and at the same time economise the material
employed therein.
For this purpose I separate the flux box from the tinning pot by means of a
partition, and I pass.the metal plate by hand down through the flux box under the
partition through the metal and up and over the wall of the tinning pot and at
the point where the metal plate leaves the tinning pot I pass it over another
division of the tinning pot forming a drainage pot, and in contact with the outer
wall thereof so that some of the superfluous tin will be removed and caught by
the drainage pot and I sometimes employ rollers brushes or doctors to act upon
both surfaces of the metal plate at this point with a similar object.
I conduct the metal plate from the tinning pot into the mouth of the dipping
pot by means of inclined ways which are continued into such mouth and down
which the metal plate slides by gravity, and I mount the lower continuations of
these inclined ways upon a shaft or axis of motion fitted with an external lever
aud I curve them at their lower ends so as to form fingers for the purpose herein-
after explained.
Within the dipping pot and mounted upon axes of motion carried by a vertically
adjustable frame are several pairs of discs which receive the metal plates from the
inclined ways and these discs receive rotary motion by means of a rack and
pinion or an equivalent device such for example as an endless chain and chain
wheels operated by the attendant from above by means of a crank handle and
toothed or chain wheels first to carry the metal plate downward completely into
the dipping pot and then by reversing the motion to carry the metal plate upward
into the grease pot which is located above and covers the dipping pot and is
provided with an opening formed with an extended flaring lip in its bottom through
which the metal plate passes, and in order to bring the metal plate into alignment
with such opening the operative whilst still lifting the plate turns the lower
inclined ways or fingers upon their axis of motion thereby moving them forward
and tilting the metal plate into a vertical position and the plate is thus tilted and
lifted into the grip of the first pair of finishing rolls at one operation.
The rotary motion of the discs is discontinued when the metal plate comes within
the grip of the first pair of finishing rolls, and the plate is then carried through
the grease pot by successive pairs of rolls in the ordinary manner.
By the employment of discs fixed upon spindles of small diameter in lieu of
rolls for manipulating the plates the metal will not be disturbed to the same
extent as heretofore and consequently less dross will be created and the metal will
therefore be kept purer.

page_text: Figure 1 is a longitudinal section of an apparatus constructed according to my
invention.
Figure 2 is a similar view of part of Figure 1 showing more particularly the
means for giving motion to the discs for manipulating the metal plates and
Figure 3 is a similar view to Figure 1 representing a slightly modified form
of apparatus.
In the several figures like parts are indicated by similar letters of reference.
Referring to Figures 1 and 2 a represents the flux box which is separated from
the tinning pot a¹ by a hanging partition a² and a³ represents guides or ways for the
metal plate.
The metal plate is passed by hand down through the flux box a under the
partition a through the inetal and up and over the wall of the tinning pot a¹ and at
the point where the metal plate leaves the tinning pot I pass it over another
division of the tinning pot forming a drainage pot a' and in contact with the outer
wall a* thereof so that some of the superfluous tin will be removed and caught by
the drainage pot a* and I sometimes employ rollers, brushes or doctors to act upon
both surfaces of the metal plate at this point with a similar object as will be readily
understood.
I conduct the metal plate from the tinning pot a' into the mouth c* of the
dipping pot c by means of inclined ways which are continued into such mouth and
down which the metal plate slides by gravity meeting on its way and being directed
by guides e* projecting from the frame e hereinafter more fully referred to and I
mount the lower continuations 6 of these inclined ways upon a shaft or axis of
motion 6 fitted with an external lever and I curve these lower continuations at
their lower ends 61* so as to form fingers for the purpose hereinafter explained.
Within the dipping pot c and fixed upon shafts or axes of motion d' d¹* carried
by a vertically adjustable frame e are several pairs of discs d d* which receive the
metal plates from the inclined ways b b' and these discs d d* receive rotary motion
by means of a pinion ** fixed upon the shaft d' with which engages the lower end
of a rack which is held up to its work by guide rollers * and at its upper end
engages a toothed wheel d³ fixed upon a shaft d* located in the grease pot and
passing through to the exterior thereof where it is provided with a crank handle d'
or in lieu of the rack №³ and toothed wheels I might employ an equivalent device
such for example as an endless chain and chain wheels operated by the attendant
from above.
By means of the crank handle d' the attendant is enabled to rotate the discs d d*
which are driven by frictional contact first to carry the metal plate downward com-
pletely into the dipping pot c and then by reversing the motion to carry the metal
plate upward into the grease pot f which is located above and covers the dipping
pot c and is provided with an opening formed with an extended flaring lip fi* in
its bottom through which the metal plate passes on its way to the finishing rolls
9.
In order to bring the metal plate into alignment with the opening the operative
whilst lifting or carrying upward the metal plate turns the lower inclined ways or

page_text: fingers upon their axis of motion, by means of the lever 63 thereby moving them
forward and tilting the metal plate into a vertical position against a guide f*
projecting from the grease pot and the plate is thus tilted and lifted into the grip
of the first pair of finishing rolls at one operation.
The rotary motion of the discs d d is discontinued when the metal plate
comes within the grip of the first pair of finishing rolls 9 and the plate is then
carried through the grease pot by successive pairs of rolls in the ordinary
manner.
By the employment of discs d d* fixed upon spindles di di* of small diameter in
lieu of rolls of the size of the discs for manipulating the plates the metal will not
be disturbed to the same extent as heretofore and consequently less dross will be
created and the metal will therefore be kept purer.
In order to vertically adjust the disc frame e and thus regulate the position of the
discs according to the size of the plate to be treated I employ a vertical
screw e which works in a nut e² formed in the frame e and at its lower end descends
to the bottom of the pot e whilst at its upper end it is formed with a square ¿¹* to
receive a key by means of which it may be rotated.
Beneath the several pots are arranged furnaces a* c*1 and 1 in order to keep
the contents thereof fluid as is well understood.
In the modification represented at Figure 3 the frame e discs & d* and connected
or coacting parts are dispensed with and in lieu thereof I employ a cradle d on to
which the plate is conducted by guides and in order to assist the plate in its
descent from the tinning pot a¹ on to the cradle d I employ fingers 6¹ formed with
forked ends * and connected by bars or rods 61** which normally are received and
held in open ended slots b* formed in the guides 6 and these fingers U¹ are at their
inner ends pin jointed to the upper ends of vertical arms 2 whose lower ends are
mounted upon centre's of motion 62*.
The vertical arms 6' are by links b³ connected with levers or offsets ¿** fröm a
shaft which traverses the width of the machine and at each end is mounted in
bearings ** and to the offsets * are also pin joiuted to the upper ends of rods d¹
the lower ends of which are pin jointed to the cradle d whilst upon the end of the
shaft is fixed a lever or offset *** which is by a link connected with a lever
or crank handle mounted upon an axis of motion d**.
By this arrangement of parts upon moving the lever d in one direction the
cradle d will be lowered into the required position to receive the plate and at the
same time the fingers 6' will be carried forward until by reason of the slots b*
the forked ends 61 will be carried forward and will engage the plate and push it
down on to the cradled whilst upon moving the lever in the other direction the
cradled will be raised until the plate is in the grip of the finishing rolls g and the
fingers will be retracted in readiness for the next operation.
By these means I so reduce the labour of passing a plate through the apparatus
that I am enabled to dispense with one operative and by reason of such a small
area of the surface of the metal being exposed to the atmosphere I lessen the usual
evaporation and oxidation thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :
1. In machinery for coating metal sheets or plates a tinning pot formed with
a downwardly projecting partition separating that portion of the tinning pot
constituting the flux box and a drainage pot at the point where the plate leaves the
tinning pot substantially as herein shown and described.
2. In machinery for coating metal plates the combination of a separate tinning
pot a separate dipping pot and inclined guides to conduct the sheets or plates by
gravity from the tinning pot to the dipping pot substantially as herein shown and
described.
3. In machinery for coating metal plates the combination of a separate tinning

page_text: pot a separate dipping pot inclined guides to conduct the plates by gravity from the
tinning pot to the dipping pot and fingers operated by a lever or crank handle for
manipulating the plates substantially as herein shown and described.
4. In machinery for coating metal plates the combination of a separate tinning
pot a separate dipping pot inclined guides to conduct the plates by gravity from
the tinning pot to the dipping pot fingers operated by a lever or crank handle for
manipulating the plates and means located within the dipping pot for receiving the
plates and raising them into a position to be gripped by the finishing rolls
substantially as herein shown and described.
In machinery for conting metal plates the combination of a separate tinning pot
a separate dipping pot inclined guides to conduct the plates by gravity from the
tinning pot to the dipping pot fingers operated by a lever or crauk handle for
manipulating the plates, a frame located within the dipping pot two parallel shafts
carried by such frame several discs fixed upon the shafts, means for rotating the
discs in order to lower and raise the plates and means for adjusting the position of
the frame substantially as herein shown and described.
Dated this 19th day of August 1891.
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.