IMPROVEMENTS IN THE COATING AND FINISHING OF TIN PLATES AND IN THE APPLIANCES USED THEREFOR " as follows
Year: 1884

page_text: We THOMAS HENRY JOHNS and WILLIAM ALBERT JOILNS, both of 22 Rushmore
Road, Clapton, London, in the County of Middlesex, Tin Plate Manufacturers, do
hereby declare the nature of our invention for "IMPROVEMENTS IN THE COATING
AND FINISHING OF TIN PLATES AND IN THE APPLIANCES USED THEREFOR "
as follows:-
to be
Our Invention relates to certain improvements in apparatus used in tinning
iron and steel plates or sheets.
We propose to make an S shaped tinning bath with a series of guides extending
from end to end of the same and made so that the sheets fed into the tinning bath
cannot overlap each other in these guides, in which they are placed edge to edge,
and are thus fed through the tiuning bath, each succeeding plate feeding the other
until they are thus automatically delivered into a grease pot which we combine
with the tinning bath.
We also propose to place metallic or other brushes between the level of the metal
in the bath and the grease pot, to remove scruff from the plates, and we also
propose to use rollers suitably placed to receive the plate as it leaves the tinning
bath and deliver it to a guide lodging it in the cradle by which it is picked up and
lifted into finishing rolls beneath the upper pair of which we propose to place
planishers.
We propose also to adapt to the S shaped tinning bath when desired a series of
grooves so arranged that the second will be wider than the first and the third
wider than the second and so on continuously to suit any width of plate without
removing the guide.
We also propose in some cases to arrange on the frame carrying the guides a
circular bar grooved on its outer face, in which groove we place a fine wire rope
revolving loose and having studs projecting upwards.
These studs will be so arranged that one will be longer than the other to suit
the respective guides, and the plate will be placed against the studs and pushed
forward into the guides and through the bath in which it will be well prepared
before entering the finishing rollers.
It will be understood that we may use all the above described arrangements in
combination, or separately, or only such of them as may be required for the
particular class of plate being treated.

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We THOMAS HENRY JOHNS and WILLIAM ALBERT JOHNS, both of 22 Rushmore
Road, Clapton London in the County of Middlesex, Tin Plate Manufacturers do
hereby declare the nature of our invention for IMPROVEMENTS IN THE COATING
AND FINISHING OF TIN PLATES AND IN THE APPLIANCES USED THEREFOR and in
what manner the same is to be performed, to be particularly described and 5
ascertained in and by the following statement:-
Our Invention relates to certain improvements in apparatus used in tinning iron.
and steel plates or sheets.
On the accompanying Sheet of Drawing
Figure 1. Is a longitudinal section through the curved chamber and the grease 1
pot of a tinning apparatus embodying our improvements.
Figure 2. A plan of the same as seen from above, and
Figure 3. A transverse section through the same.
Figure 4 Shews in detail the arrangement of the planishers.
Figure 5. Illustrates a mode of propelling or feeding the plates forward by a 1
wire rope with studs attached thereon, and
Figure 6 An arrangement of grooves to receive plates of various widths.
A Grease Pot.
B Finishing Rolls.
C Planishors.
D Curved chamber or bath.
E Guides for Plates.
F Grooves in samo.
G Cradle.
H Plates.
K Lever for operating Cradle.
L Counterweight.
M Metallic Brush.
N Support for guide picce E.
O Circular Bar or Tube.
P Groove in same.
Q Wire Rope.
R Projecting studs.
3
It will be seen that we make an S shaped tinning bath D, with a series of
guides E extending from end to end of the same and 'made so that the sheets H 34
fed into the tinning bath D cannot overlap cach other in these guides E (see Fig: 7
of the drawing), in which they are placed edge to edge and are thus fed through
the tinning bath, each succeeding plate feeding the other forward until they are
thus automatically delivered into the grease pot A, which we combine with the
tinning bath.
We place metallic or other brushes M between the level of the metal in the
bath D and the grease pot A, to remove scruff from the plates H, and we also uso
40

page_text: rollers suitably placed to receive the plate H as it leaves the tinning bath D and
deliver it to a guide lodging it in the cradle G, by which it is picked up and
lifted into the finishing rolls B, beneath the upper pair of which we place the
planishers C.
We may in some cases arrange on the frame carrying the guides, a circular bar O,
grooved on its outer face, and in this groove P we place a fine wire rope Q
revolving loose and having studs R projecting upward, as shown in Fig 5.
The arrangement of these studs R is such that one will be longer than the other
to suit the respective guides, and the plate will be placed against the studs and
pushed forward into the guides and through the bath, in which it will be well
prepared before entering the finishing rollers.
We also adapt to the 8 shaped tinning bath when desired, a series of
grooves FFF, so arranged that the second will be wider than the first and
the third wider than the second, and so on continuously to suit any width of plate
without removing the guide (sec Fig 6).
In operating with our improved apparatus, the sheets of iron H are fed into the
mouth of the guide E, whenco passing through the groove F they are caused to
travel through the metallic brushes M and rollers B into the grease pot A. From
the construction of the guides E it will be seen that each plate as it is fed into the
groove F is caused to travel by the action of the one following immediately behind
it. From this grease pot A. the cradle G picks up and feeds the plates into the
finishing rollers B and planishers C when required.
It will be understood that we may use all the above described arrangements in
combination, or separately, or only such of them as may be required for the
particular class of plate being treated.
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
1° In a bath for tinning or coating with metal iron and steel plates and sheets,
ho use of guides extending from end to end of the said bath so as to deliver the
lates direct into the grease pot in a continuous manner, substantially as above
escribed.
2° The construction of the said guides so that the plates fed through them
annot overlap, substantially as described.
3º The use of a metallic or other brush or brushes placed between the metal
ath and the grease pot, substantially as and for the purpose specified.
4° The use of planishers under the upper pair of finishing rolls, substantially as
escribed.
5° The use of the circular bar and wire rope with studs arranged on the frame
rrying the guides, substantially us hereinbefore described and shown Figure 5 of
e drawing.
6 The use in a bath for tinning or coating plates with metal, of a series of
ooves to suit any width of plate, substantially as hereinbefore described and
own Fig 6 of the drawing.
7 The general construction and combination of apparatus herein before described
d shown Figures 1, 2 and 3 of the drawings.
Dated this Tenth d...