Improvements in the Manufacture of Tin and Terne Plates and in the Apparatus therefor.
Year: 1889

page_text: Date of Application, 6th Dec., 1889
Complete Specification Left, 8th Sept., 1890-Accepted, 25th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Tin and Terne Plates and in
the Apparatus therefor.
I, THOMAS HENRY JOHNS, of 164 Millfields Road, Clapton, Middlesex, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of tin and terne plates,
and in the apparatus therefor, the object being to lessen and to expedite the operation,
and to obtain better finished plates.
For the purpose of my invention, I employ an angular, say, a V, or other shaped
vessel, within which, at one, or at both ends, I arrange levers in connection with
pivotted frames for receiving the plates to be coated, said plates being fed thereto by a
funnel, or hopper shaped trough containing grease to the fluid metal (tin or terne).
As each plate leaves the hopper, it falls into the frame and this, by its lever, is
moved to the centre of the bath, and by a lift action of the frame, the plate is raised
high enough to be nipped by rollers, which continue the lifting for removing the
superfluous metal and for finishing the plate, and as each plate is being drawn from
its frame, the jaw, or leaves forming part of the frame, close upon the plate and scrape
the superfluous metal from it, previous to entering between the rollers.
The rollers are in a bath of grease, and the bottom edges of this grease bath dip
into the fluid metal to prevent the grease flowing over the whole top of the metal
bath.
Any system of heating can be adopted.
H. GARDNER,
166, Fleet Street, London, Agent for the said Thomas Henry Johns.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Tin and Terne Plates and in
the Apparatus therefor.
I, THOMAS HENRY JOHNS, of 164 Millfields Road, Clapton, Middlesex, Engineer,
do hereby declare the nature of my said invention and the manner in which the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
This invention relates to improvements in the manufacture of tin and terne plates
and in the apparatus therefor, the object being to lessen and to expedite the opera-
tion, and to obtain finished plates, direct, without the usual after treatment for
finishing.
For the purpose of my invention, I employ an angular, say a ✓ or other shaped
vessel, within which at one or at both ends I arrange levers in connection with pivotted
frames for receiving the plates to be coated, said plates being fed thereto from a funnel
or hopper shaped trough containing a flux, to the fluid metal, (tin or terne).
As each plate leaves the hopper it falls into the frame, and this by its lever is moved
to the centre of the bath, and by a lift action of the frame the plate is raised high
enough to be nipped by rollers, which continue the lifting, and as each plate is being
drawn from its frame, the jaw or leaves forming part of the frame close upon the plate
and scrape the superfluous metal from, and finishes it.
The rollers are in a bath of grease and the bottom edges of this grease bath dip
into the fluid metal to prevent the grease flowing over the whole top of the metal
hath.

page_text: Any system of heating can be adopted.
My invention will be understood by the annexed drawings.
Figure 1 is a sectional elevation of a vessel shewing two sets of appliances in or by
which plates can be coated with tin, termed tin plates, or with lead or an alloy, termed
terne plates and finished, the two apparatus being shewn in the two positions they
occupy for the purpose.
Figures 2 and 3 are similar views of a vessel in which only one set of apparatus is
contained, but shewing the apparatus in the two positions it can occupy, one for
receiving the plate to be coated, and the other delivering the coated and finished
plate.
.
A is the V, or it may be another shape of vessel, for containing the tin or other coating
agent, the centre part being surmounted by a hopper B containing two sets of rolls CC
and the finishing grease.
D is a hopper containing coating grease or a flux, down and through which the
plate to be coated is first passed. This plate falls into a kind of cradle formed of twɔ
frames E E, hinged at the lower part, and provided with scraping blades at the upper
inner part. This hinged frame is jointed to and supported by a short lever F forming
part of a long hand lever G, which is pivotted to a lug H in the vessel A.
The frame E E and the lever G are also connected by a link I for giving the
necessary motion when the lever G is thrown over to carry the frame E E under the
grease bath B for lifting the plate within the frame to the rollers (C the lower set of
which nip the now coated plate and carry it upwards from the frame E E, the scraping
blades acting (by pressure against the stop L) to remove the superfluous metal from.
the plate as it ascends.
When the frame is being moved over to fetch a plate; the two leaves of the
frame E, E separate themselves ready for the descending plate to drop in between them,
said leaves closing upon the plate to effect the scraping, while moving to a position
under the rolls C. C.
The vessel A is set in a stove J and heated, preferably, by direct fire in the
furnace K.
Having now particularly described and ascertained the nature of said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. The apparatus shewn on the annexed drawings, for single or double action, in
which the essential features are the jointed frame E. E. provided at the upper part
with scrapers and so connected to the lever G and link I as to receive a plate to be
coated from a hopper containing flux to under rolls in a grease bath, between which
rolls the plate is lifted by a thrust action on the lever G, as described.
2. The frame E. E. composed of two leaves and provided with scrapers for removing
the superfluous metal from the coated plate and finishing it while the rollers C, U,
drag the plate therefrom, as set forth.
D
11. n
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said T. H. Johns.