Improvements in the Manufacture of Metal Plates and other Articles usually Formed by Rolling.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Metal Plates and other Articles
usually Formed by Rolling.
I, JOHN FRENCH GOLDING, of 39, Upper Thames Street, in the County of
London, Engineer, do hereby declare the nature of this invention to be as
follows:
This invention relates more particularly to the manufacture of metal plates
direct from molten metal. Heretofore it has been usual to allow the molten
metal to flow between large rollers which act to roll the metal into a thin sheet.
Difficulty is experienced in such methods by reason of the inability to keep the
atmosphere from contact with the metal while it is at a high temperature, with
the result that the surfaces of the metal plates become oxidized and much loss
results by the scaling of the plates. One of the chief objects of my invention
is to avoid such difficulty by treating the molten metal between flat or approxi-
mately flat surfaces instead of rollers and by keeping the metal between the said
surfaces out of actual contact with the atmosphere for a sufficient time to allow
the metal plates under formation to sufficiently cool or become annealed before
they are withdrawn, so that they will then not be liable owing to their reduced
temperature to be detrimentally affected by contact with the atmosphere.
For the purpose of my invention I may employ a series of hydraulic or other
powerful presses adapted to revolve around a central pillar so as to be succes-
sively charged with the molten metal, such presses being either arranged verti-
cally or horizontally, but preferably horizontally or at a slight inclination, so
that when the molten metal is poured into the press it will tend to flow towards
one end thereof. The upper or movable part of each press is adapted
the
an inclination SO
to meet the other part of
their meeting surfaces come together in a gradual manner and cause the
molten metal to be evenly distributed between said meeting surfaces, and the
air to be effectually expelled.
press
at
that
Each press as it comes into position to receive the molten metal is heated to
a suitable temperature to avoid chilling of the metal as it is poured in, and
the pressure exerted upon the metal in the press is continued until the metal
has solidified and gradually cooled to a temperature equivalent to about a cherry
red heat. The press is then opened and the annealed plate removed, at which
time it will be in a condition to effectually resist any detrimental oxidizing
effect of the atmosphere.
The plates obtained as above stated may then be rolled to reduce their thick-
ness in the well known manner.
If desired the meeting surfaces of the press may be embossed or be otherwise
This will be particularly
formed to produce plates with figured surfaces.
desirable when metal plates are to be manufactured for subsequent use in making

page_text: expanded metal in a machine of the kind set forth in the specification of my
Patent No. 3692 of 1896.
I do not confine my invention to the manufacture of plates as it may be
employed in the manufacture of a variety of other articles that are usually
made by rolling.
Dal 01
1 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in the Manufacture of Metal Plates and other Articles
usually Formed by Rolling.
I, JOHN FRENCH GOLDING, of 39, Upper. Thames Street, in the County of
London, Engineer, do hereby declare the nature of this 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 more particularly to the manufacture of plates direct
from molten metal. Heretofore it has been usual in such manufacture to allow
the molten metal to flow between large rollers which act to roll the metal into
a thin plate, but owing to the great difficulty that is experienced in keeping the
atmosphere from contact with the metal while it is at a high temperature, the
surfaces of the metal plates become oxidized and much loss results by the scaling
of the plates.
One of the chief objects of my invention is to avoid the above difficulty by
treating the molten metal between flat or approximately flat surfaces, instead of
rollers, and by keeping the metal between the said surfaces out of actual contact
with the atmosphere for a sufficient time to allow the metal plates under forma-
tion to become cool or annealed before they are withdrawn, so that they will
then not be liable, owing to their reduced temperature, to be detrimentally
affected by contact with the atmosphere.
For the purpose of my invention may employ one or more presses arranged
either vertically, or at a slight inclination to the horizontal, so that when the
molten metal enters the press it will flow toward one end thereof. The movable
part of the press meets the other part at an inclination so that as the meeting
surfaces come together the molten metal is caused to be evenly distributed
between said surfaces and the air effectually expelled.
The press is heated to a suitable temperature to avoid chilling of the metal as
it enters; and the pressure exerted upon the metal in the press, is maintained
until the metal has solidified and become annealed by gradually cooling to a
temperature equivalent to about a cherry red heat. The press is then opened
and the annealed plate removed, at which time it will be in a condition to effec-
tually resist any detrimental oxidising effect of the atmosphere. The plates so
obtained may then be rolled to reduce them to the required thickness in the
well known manner.
If desired the meeting surfaces of the press may be embossed or may be other-
wise formed to produce plates with figured surfaces. This will be particularly
desirable when metal plates are to be manufactured for subsequent use in
making expanded metal in a machine of the kind set forth in the Specification
of my Patent No. 3692 of 1896.

page_text: do not confine my invention to the manufacture
loyed in the manufacture of a variety of other articles."
a order that my said invention may be clearly understood and readily carried
effect I will proceed to describe the same more fully with reference to the
ompanying drawings, in which:-
Figure is a side elevation and
Figure 2 a plan of a press constructed for use in manufacturing metal plates
accordance with my invention.
A is the movable part of the press and B the fixed part which is arranged
The movable part A is connected with the
rtically on a suitable base C.
rt B by a resilient steel plate D bolted or otherwise affixed to the lower ends
the said parts A and B. This steel plate by reason of its resiliency acts as a
nge and at the same time also serves to prevent the molten metal as it enters
e press, from escaping through the space a existing between the two parts A
ad B. The aforesaid space a is necessary in order to allow sufficient distance to
e left between the parts A and B when they come together to provide for the
nickness of the plate that is in process of manufacture. If desired the said
esilient steel plate may be formed with elongated openings for the bolts secur-
ng it to the press, to pass through, so that the said plate can be adjusted to
ary the distance between the parts A and B of the press and therefore enable
lates of different thicknesses to be made in the same press. Any other appro-
priate form of hinge may however be employed in place of the resilient steel
plate.
The movable part A of the press has at each side thereof wing-pieces a*a*³
which prevent the molten metal from escaping laterally. Each of the parts A
and B is formed with passages or channels a¹ and 61 respectively, for facilitating
the heating of the press by gas-jets E or other heating contrivances at the lower
ends thereof.
FF are pairs of arms pivotally connected at a and b to the said parts A.
and B of the press, the outer ends of such arms being connected together by
a cross-bar f. The position of the pivots a2 and 62 is such that when the outer
ends of the arms are depressed, the movable part A of the press is forced towards
the fixed part B and so causes the molten metal in the press to be distributed
over the meeting surfaces thereof, the air being at the same time expelled.
The metal is retained between the parts A and B of the press until it has had
time to solidify and become annealed, when the parts A B are again separated
and the finished plate removed. It will then be in a condition to be unaffected
detrimentally by contact with the atmosphere.
The said arms FF1 may be actuated manually or by means of any suitable
motive power. Or if desired the said outer ends of the arms can be weighted
and be normally supported in the raised position represented in Figure 1 by a
hinged strut so that when said strut is released the weighted ends will fall by
the action of gravity.
G is a pot containing the molten metal of which the plates are to be made,
5 the said pot being supported by a ring g having lugs g¹ that rest on overhead
joists g². The lower end of the pot has a movable plug g³ which can be raised
at the required times, to allow the molten metal to flow into the press, by, actuat
ing the lever g*.
If desired a series of the said presses may be arranged on a suitable turn
50 table which would be actuated by hydraulic or other appropriate machinery fo
bringing each press in succession under the pot G and in such case the oute
ends of the arms F F might be arranged to travel on a cam surface so that th
opening and closing of the press would take place mechanically as the turn
table revolved.
55
I wish it to be understood that I do not intend to cover by my invention th
manufacture of plates between continuously rotating surfaces, my inventio
having reference only to the formation of the plates or other articles betwee

page_text: reciprocating surfaces, i.c. surfaces that are capable of approaching toward and
receding from each other as hereinbefore explained.
my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The manufacture of a metal plate or other article by admitting, molten metal
between surfaces arranged at an inclination to each other and then causing said
surfaces to press and distribute the molten metal between them and retain it out
of contact with the atmosphere until it becomes solidified and annealed, sub-
stantially as and for the purpose specified.
2. An apparatus comprising a press or presses the active surfaces of which are
so arranged that molten metal poured between them will flow toward one end
thereof, and will, when the said surfaces come together, be distributed between
them and the air be expelled substantially as described and for the purpose
specified.
3. Apparatus constructed arranged and operating substantially as described
with reference to the accompanying drawings and for the purpose specified.
0412 Janamba 1808
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.