Improved Construction or Arrangement of Apparatus for Coating Hoop-iron with Tin or Terne Metal.
Year: 1890

page_text: Date of Application, 28th Jan., 1.90
Complete Specification Left, 28th Oct., 1890-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
Improved Construction or Arrangement of Apparatus for Coating
Hoop-iron with Tin or Terne Metal.
I, THOMAS HENRY JOHNS, of 164, Millfields Road, Clapton, Middlesex, Engineer,
do hereby declare the nature of my said invention to be as follows:-
:-
This invention relates to improved construction or arrangement of apparatus for
coating hoop iron with tin or terne metal.
According to my invention I arrange a flat perforated tube in a long trough,
through which the hoop iron is passed, the tin or terne metal being kept in a molten
state in the trough.
The mouth of the flat tube is slightly funnel shaped for the easy entrance of the
hoop iron from the feed rolls and the outlet of the tube is just below the level of the
molten metal the grease being above.
Just outside the delivery end of the trough another tube with a slot in it is
arranged as a scraper to act upon and scrape both sides of the hoop iron as it emerges
from the trough and previous to it passing through between rolls in housings in which
they can be adjusted by set screws.
Dated this 28th day of January 1890.
H. GARDNER,
166, Fleet Street, London, Agent for the said T. H. Johns.
COMPLETE SPECIFICATION.
Improved Construction or Arrangement of Apparatus for Coating
Hoop-iron with Tin or Terne Metal.
1, THOMAS HENRY JOHNS, of 164 Millfields Road, Clapton, Middlesex, Engineer,
do hereby declare the nature of my said invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to improved construction or arrangement of apparatus for
coating hoop or band iron with tin or terne metal.
According to my invention I arrange a flat perforated tube or a guide in a long
trough, through which the hoop iron is passed, the tin or terne metal being kept in a
molten state in the trough.
The mouth of the flat tube is slightly funnel shaped for the easy entrance of the
hoop iron from the feed rolls and the outlet of the tube is just below the level of the
molten metal.
Just outside the delivery end of the trough, another tube with a slot in it is
arranged as a scraper to act upon and scrape both sides of the hoop iron as it emerges
from the trough and previous to it passing through between rolls in housings in which
they can be adjusted by set screws or weighted levers.
The invention will be clearly understood by the annexed drawings.
Figure 1 is a part sectional elevation of a tinning bath for hoop, band and like iron
in lengths.
Figure 2 is an end view.
Figure 3 shows a double pair of scrapers operated by a single lever.
A is the bath surmounting a furnace B by which the bath can be heated. Cis
a flat perforated tube or guide partially submerged in the bath. D is a tube with
scraper edges for scraping surplus metal from the flat surfaces of the hooping or
band. E, E, are rolls set vertically and provided with ✓ grooves into which the
Di

page_text: hooping engages and by the rotation of which the hooping is drawn from the
bath A. F, F, are V shaped guides for receiving the hooping from the rolls E, E.
G, G, is another pair of vertically set V grooved rolls for drawing the hooping
from the rolls E, E, and through the V guides F, F.
The V guides are adjustable as to distance apart by screws H to suit the width of
the hooping which travels along flatwise horizontally and after leaving the first pair of
rolls E, E, it is subject to a current of cold air blown by a blower through the
trunk I said air impinging against the under side of the hooping from the channel J,
a similar operation being effected for a further cooling of the hooping by air from the
channel K.
The rolls E and G are balanced by the weighted lever L, L, to nip against the edges
of the hooping, the flat surface or surfaces of the hooping not being touched by rolls
as by the ordinary system.
The scraping edges may be from any kind of material and heat can be applied to
them so that the scini fluid or unset metal as a coating on the hooping is not chilled.
The scraping of hooping at the coating operation, and a somewhat rapid cooling are
essential features in my invention, because the brilliancy of the coating metal is not
deadened as by the usual flat surface rolling process.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is
1. The apparatus shown on the annexed drawings Figures 1 and 2, for enabling
iron hooping, bands, and other widths in length to be coated, scraped, and be drawn
from the scrapers without the flat surface or surfaces being touched after leaving the
scrapers, as herein before described.
2. The system of coating hoop and like iron in lengths, consisting of passing it
through a tube or guide in a bath of molien metal, then between scrapers, and finally
between rolls which do not touch the flat surface or flat surfaces during the drawing
forward and cooling processes, substantially by the apparatus shown on the drawings.
Dated the 28th October 1890
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said T. H. Johns.