Improvements in Apparatus or Machinery for Coating Metal Sheets with Metals or Alloys.
Year: 1890

page_text: Date of Application, 31st Jan., 1890-Accepted, 1st Mar., 1889
Improvements in Apparatus or Machinery for Coating Metal Sheets
with Metals or Alloys.
I, RICHARD HEATHFIELD of Darlaston in the County of Stafford, Manufacturer
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:
My invention has for its object improvements in apparatus or machinery for coating
metal sheets with metals or alloys by which means I am enabled to reduce the
wear and tear upon the rolls and at the same time facilitate the coating of the
metal sheets.
In order that my invention may be clearly understood and more easily carried into
practice I have appended hereunto two double sized sheets of drawings upon which I
have illustrated my various improvements so that they may be adapted to the various
conditions met with in practice.
Upon Sheet 1
Figure 1 is a plan of the galvanizing pot A for galvanizing sheets of metal which
are passed through the rolls B lengthways which are boxed in by the boxing K as
will be hereafter described.
Figure 2 is a section through Fig. 1 on line 1. 2.
Figure 3 is also a section through Figure 1 but shewing the rolls B at an
inclination or in a diagonal position instead of horizontally as seen in the previous
figure.
Figure 4 is a section through the pot A in which the submerged feed rolls E
are used the exit rolls F being boxed in as will be here after described.
Figure 5 is a plan of Figure 4.
Figure 5 is a diagram elevation of the driving end of the rolls F and E shewing.
the mode of attaching the end boxing N so as to escape contact with the driving
whee! & yet allow the top n' of the division N to stand above the line of
metal n³.
Upon Sheet 2
Figure 6 is a section through the pot A' in which the diagonal feed rolls H and
diagonal exit rolls are used.
Figure 7 is a plan of Fig. 6 with a piece broken out of the centre.
Figure 8 is a similar section to Fig. 6 shewing the feed rolls H in an altered
position but in this case only a small portion is shown sufficient to illustrate
the part.
Figure 9 is a similar section to Figure 6 at the other end for shewing the mode of
operating and removing the exit rolls H.
Referring again to Figures 1 & 2 sheet 1 of the drawings which illustrate a
galvanizing pot A having the rolls B mounted in the supports b¹ the pot A & rolls B
being of sufficient length to take the sheets of metal L lengthwise that is with its
longer sides parallel or nearly parallel to the rolls B in which case the sheet L is
immersed in the coating metal Z and fed into the rolls from the bottom. To protect,
the rolls B from the action of the superfluous flux or scum upon the pot 1 box them
in on each side by means of the divisions K which are firmly bolted to the sides of
the lower part 6 of the supports b'. The gearing a³ of the rolls at each end are also
boxed in by means of the divisions K' which are also firmly bolted to the lower
portion of the supports b'. In order to prevent the superfluous flux by any means
gaining access to the rolls B the rolls are lowered in from the top by means of the
slot or groove b³ provided and they may be kept in their proper relative position by,
any suitable arrangement.
:

page_text: In order to facilitate the insertion of the sheets in the rolls B after they have been
immersed I sometimes place the rolls B in a more or less inclined position as shown
at Figure 3 in which case they would be boxed in by the divisions K and K' in the
same manner as shewn in the case of Figures 1 and 2.
:
Referring to Figures 4 & 5 which illustrate the pot A¹ having the submerged or
partially submerged feed rolls E and horizontal exit rolls F through which the metal
sheets L' pass I box the latter in from the superfluous flux by the side divisions M
and end divisions N to the gearing a all of which are firmly bolted to the lower part
of the roll supports E' in a similar manner to that described in the case of the previous
figures. The boxing divisions in each case can be made to form part of the frames
instead of being bolted thereto as described.
The rolls F may be mounted in the inner removable frames P & P¹ which are
bolted to the supports E' by the bolts e² & e³ thereby allowing the exit rolls F to be
more readily removed from the pot. It is an advantage to make the removable
frames P & P¹ to pivot on the bolts e² so that the one end e³ can be turned up until
the rolls F are out of the metal as hereafter described with regard to Figures 6. 7 and 9
in which case the frames would be rounded to miss the boxing as they are being
raised. This inner removable frame may be used with or without the boxing M
and N but I prefer them in conjunction with the boxing as shown by Figures 4 & 5.
The rolls Fin Figure 4 may be mounted to take a more or less diagonal position
as shewn by dotted lines F and they may be used in such positions whether mounted
in the supports E or in the inner removable frames P & P and may be either
boxed in as shewn or not as the case may be. Such inclination of the rolls prevents
the sheet L from being bent to such an extent as hitherfore when passing through
the rolls & causes it when emerging to take the direction more or less shewn by
dotted lines I which position is much more convenient for its removal. The boxed
in exit rolls when working horizontally may be used in conjunction with the submerged'
feed rolls E as shown & described with regard to Figure 4 or they may be used in
combination with the feed rolls E when the said feed rolls are placed vertically
outside the metal at the inlet edge of the pot or the rolls E may be altogether.
removed and the sheet fed through suitable guides such as shown at Fig. 6 by hand
to the exit rolls F whether diagonal or horizontal.
Referring to sheet 2 which illustrates the pot A2 having the inclined or diagonal
rolls H on the inlet edge as of the pot & the diagonal partly immersed rolls J on
the exit side a of the pot the metal sheet L³ passing through the metal Z from the
rolls H to the rolls J by means of the guides Rone portion of my improvement
consists of mounting the rolls H in the separate frame S and S¹ which are pivotted
or hinged at S & S³ to the supports, and are connected together by the tie
rods S & S thus allowing the inclination of the said feed rolls H to be altered to
almost any inclination desired in which position they are secured by a bolt which
fits into the eye S' on the frame S as also a series of corresponding holes t¹ in the
quadrant T which forms part of or is fixed to the support T the frames S & S¹ being
thus firmly retained in the position required. This arrangement of inclining the rolls
may be applied to all kinds of pots in which rolls are used and may be used in
conjunction with exit rolls or not as may be desired.
The exit rolls J are mounted in the separate frames V and V₁ which are connected
together by the tie rods v2, v3 & vt and the other portion of my improvement consists
in pivoting or hinging the said separate frames V & V' to the main supports T by
the bolts & the tie rod v² being extended at 7 and 8 so as to find a bearing on
the supports T and is provided with the eye v to which the chain W is attached by
which means the rolls J may be readily raised & suspended out of the metal as
shewn at Figure 9 without interfering with the guides R or any other part and in
case of the rolls requiring to be stopped or repaired the frame may be turned clean
over on its pivot until the rolls drop out on the outside of the pot.
invention
I do not confine myself to the exact mode of turning up & elevating-the rolls as herein
described as I may vary the same considerably without departing from
and such arrangement substantially as described may be used in the case of rolls.
my

page_text: whether diagonal or horizontal and when worked by themselves or in conjunction
with the feed rolls H or any other external feed rolls or ordinary submerged
feed rolls E and indeed is generally appliable for this and all similar purposes.
The exit rolls in any of these cases may be partially or wholly immersed in the
coating metal as may be required.
Having now particularly described & ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1st. In apparatus for coating metal the boxing in of the exit rolls substantially as
& for the purpose herein set forth & shewn upon the drawings.
2nd. In apparatus for coating metal the rolls B in a diagonal position substantially
as & for the purpose herein set forth & shewn upon the drawings by
Figure 3.
3rd. In apparatus for coating metal the removable frame P & P substantially
as & for the purpose herein set forth & shewn upon the drawings by Figures 4 & 5.
4th. In apparatus for coating metal the diagonal exit rolls F in combination with
the submerged feed rolls E substantially as & for the purpose herein set forth & shewn
upon the drawings by Figure 4.
5th. In apparatus for coating metal the pivoting of the feed rolls H whether in
combination with the rolls J or not and substantially as herein set forth & shewn upon
the drawings by Figs. 6, 7 & 8.
6th. In apparatus for coating metal elevating & removing exit rolls substantially as
herein set forth & shewn upon the drawings.
7th. The improvements in apparatus or machinery for coating metal sheets with
metals or alloys substantially as herein set forth & shewn upon the annexed
drawings.
Dated this 30th day of Jana V
1000
LONA
LODAS
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.