Improvements in Galvanising Apparatus.
Year: 1889

page_text: PROVISIONAL SPECIFICATION:
Improvements in Galvanising Apparatus.
I, JOHN LYSAGHT of St. Vincents Iron Works, Bristol, Iron Master, do hereby
declare the nature of this invention to be as follows:-
-
The object of this invention is first to facilitate the withdrawing of sheets or
plates of iron, steel, etc.. from the coating bath after they have been coated and
to dispense with hand labour and secondly to automatically cleanse the sheets or
plates from flux and other stains after they have been raised from the bath. To
raise the sheets or plates of metal from the coating bath I employ first a pair of
rolls working in the molten metal either below or on the surface. which rolls con-
vey the sheet upwards and bring it into contact with the circumference of discs
which are mounted on a horizontal shaft above and have sharp points projecting
from them--these deflect the sheets over other discs or a drum on another hori-
zontal axis and which have blunt or agate points projecting from their circum-
ference and the sheet is so caused to take a bearing on these.blunt points as it
is forced out of the mollen metal.
In order to automatically cleanse the sheets or plates from flux and other stains
I cause the sheets or plates to be passed onwards to a pair of grooved rolls which
force the sheets through a pair of cylindrical revolving or other brushes against
which jets of water are directed where they meet the plate. I then pass the
sheets through a pair of rubber rolls and finally through a heated chamber. by
which means they are perfectly dried. By means of gearing. pullies and belts
the whole has one constant and uniform motion.
Dated this 20th day of December 1889.
JOHN LYSAGHT.
COMPLETE SPECIFICATION.
Improvements in Galvanising Apparatus.
I, JOHN LYSAGHT of St. Vincents Iron Works, Bristol, Iron Master, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following state-
ment:-
The object of this invention is first to facilitate the withdrawing of sheets or
plates of iron, steel, etc., from the coating bath after they have been coated and
to dispense with hand labour and secondly to automatically cleanse the sheets or
plates from flux and other stains after they have been raised from the bath. To
raise the sheets or plates of metal from the coating bath 1 employ first a pair of
rolls working in the molten metal either below or on the surface, which rolls con-
vey the sheet upwards and bring it into contact with the circumference of discs
which are mounted on a horizontal shaft above and have sharp points projecting
from them-these deflect the sheets over other discs or a drum on another hori-
zontal axis and which have blunt or agate points projecting from their circum-
ference and the sheet is so caused to take a bearing on these blunt points as it
is forced out of the molten metal.
In order to automatically cleanse the sheets or plates from flux and other stains
I cause the sheets or plates to be passed onwards to a pair of grooved rolls which
force the sheets through a pair of cylindrical revolving or other brushes against
which jets of water are directed where they meet the plate. I then pass the
sheets through a pair of rubber rolls and finally through a heated chamber, by

page_text: which means they are perfectly dried. By means of gearing, pullies and belts
the whole has one constant and uniform motion.
In order that my said invention may be fully understood and readily carried into
effect I will proceed to describe the drawings hereunto annexed,
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front elevation of galvanizing apparatus constructed according to
my invention and shews the relative positions of the working parts.
Figure 2 is a plan of the said apparatus.
Figure 3 is a vertical section taken on the line O O, shewing the various parts
of the whole apparatus.
Figure 4 is a plan of the automatic cleansing apparatus arranged in accordance
with my invention.
Figure 5 is a vertical section or view taken on the line P. P.
In Figures 1, 2 and 3 AA is a pair of rollers fitted in hanging bearings and
jointed levers working in the molten metal. B B are discs with points fitted on
shafts running on friction bearings.
CC are discs or drums with agate points fitted on the surface also fitted to
shafts running on friction bearings: D D are other discs similar to B B. the
rollers A A are given motion by suitable gearing. The plate issuing from the
metal pot is shewn at E E it rises between the rollers A A passes beneath the
discs BB over the drums C C and the discs D as the drawing indicates. Tt.
will be seen that the points only come into contact with the hot plate and these
will not injure the surface.
From the discs D the plate is passed on to the cleansing apparatus shewn by
the Figures 4 and 5.
FF are grooved or ridged rolls for conveying the sheets forward and through
the revolving brushes G G and into the india rubber covered rolls H F. they are
similar to the india rubber covered rollers of a wringing machine. I I are per-
forated tubes arranged to supply iets of water on to the sheets for cleaning them.
By means of gearing, pullies and helts, the whole apparatus has one constant and
uniform motion. The rubber rolls remove the water from the surface of the
plate and afterwards it passes into a drying chamber.
By the novel combinations and arrangements of apparatus herein described for
automatically conveving and cleansing sheets after being conted in a metal bath,
a great saving in labour over methods now in use is effected.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. The withdrawing apparatus substantially as shewn in Figures 1, 2 and 3 in
which rollers A A near the surface of the melted metal raise the plate from the
metal pot and deliver it between or over discs or drums armed with points which
alone come into contact with the surface as herein set forth.
2. The cleansing apparatus substantially as shewn in Figures 4 and 5 in which
the plate is propelled by rollers F F between revolving brushes G G and has
water jets thrown upon it and is then passed between rubber rollers H H as
herein set forth.