Improvements in Apparatus for Removing Molten Slag or Scoria from Furnaces.
Year: 1889

page_text: Date of Application, 12th Feb., 1889
Complete Specification Left, 11th Nuv., 1889-Accepted, 14th Dec., 1889
Improvements in Apparatus for Removing Molten Slag or Scoria
from Furnaces.
I, WILLIAM HAWDON, of Middlesbrough-on-Tees, in the County of York, Engineer,
do hereby declare the nature of this invention to be as follows :-
This invention relates to improvements upon an invention for which Letters Patent
were granted to me dated the thirty first day of October 1887, No. 14803, and consists
in certain features of novelty in the construction of the moulds for receiving the
nolien slag or scoria from the furnace whereby the molten slag or scoria may be cast
into any desired form and delivered with greater facility.
And in order that the said invention may be clearly understood and readily carried
into effect, I will proceed aided by the accompanying drawings fully to describe the
Salme.
DESCRIPTION OF THE DRAWINGS.
Figure 1. is a plan representing two moulds or sogments of an endless chain of
moulds constructed according to my invention.
Figure 2. is a transverse section taken on the line A. B. of Figure 1. and Figure 3. is
a longitudinal section taken on the line C. D. of Figure 1.
I represents the mould which is formed in sections to allow of expansion and con-
traction as described in the specification of the said former patent and the lines of
division are now marked i.
Each mould or segment I. of the endless chain is formed with suitable side walls
and the area of such mould I. is divided by a number of longitudinal and transverse
partitions or walls of less height than the side walls into a number of pockets or
recesses the dimensions of which will vary according to the purpose to which the
cast blocks are intended to be applied.
In the drawings I have represented each of the two moulds or segments I. as cou-
structed with pockets or recesses of different dimensions and they may be so
employed, but it will be understood that the entire endless chain of moulds or
segments L. may be constructed with pockets or recesses of one uniform size.
In the example shown the transverse walls or divisions *** of one of the moulds
nre forined shorter than the longitudinal walls or divisions thereof and by these
means I form the slabs with shallow transverse grooves in the surface thereof.
Although I have shown the division walls arranged so as to form rectangular
blocks or surfaces I would have it understood that I may arrange them diagonally
or otherwise so as to produce blocks or surfaces of other shape as desired.
In order to facilitate the delivery of the cast blocks, I form one or more of the
division walls with an inclined face as represented at Figure 3.
It is desirable that the faces of all the division walls should be slightly inclined
but I especially so make that face which becomes the under wall in delivering
the blocks to the receptacle in the manner described in ny said former speci-
fication.
The travel of the endless chain is so timed that the slag will run into the moulds
or segments I. until the pockets or recesses are filled and until the material rises
above the division walls thus forming to the blocks a foundation or backing of a
given thickness and with an unbroken surface. Or, by supplying the molten material
to the moulds through a number of spouts or through one broad spout I may merely
fill or only partially fill the pockets or recesses and thus form separate blocks
without connecting backing or foundation.

page_text: As the blocks are delivered to the receptacle this hacking by the curvature of the
endless chain of moulds or segments becomes severed at the line of junction of such
moulds.
VAUGHAN & SON.
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Removing Molten Slag or Scoria
from Furnaces.
I, WILLIAM HAWDON, of Middlesbrough-on-Tees, in the County of York. 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 :-
My said invention relate to improvements upon an invention for which Letters
Patent were granted to me dated the thirty first day of October 1887, No. 14803.
and consists in certain leatures of novelty in the construction of the moulds for
receiving the molten slag or scorin from the furnace, whereby the molten slag or
scorin may be cast into any desired form and delivered with greater facility.
And in order that the sald invention may be more clearly understood and reulily
carried into effect, I will proceed, aided by references to the drawings accompanying
my provisional specification, fully to describe the same,
Figure 1. is a plan representing two moulds or segments of an endless chain of
moulds, constructed according to my invention.
Figure 2. is a transverse section taken on the line A. B. of Figure 1. and Figure 3.
is a longitudinal section taken on the line ('. D. of Figure 1.
1. represents the mould which is formed in sections to allow of expansion and
contraction as described in the specification of the said former patent and the lines
of division are now marked i.
Each mould or segment 1. of the endless chain is formed with suitable side
walls and the area of such mould 1. is divided by a number of longitudinal and
transverse partitions or walls of less height than the side walls ♬ into a number
of pockets or recesses the dimensions of which will vary according to the purpose
to which the cast blocks are intended to be applied.
In the drawings, I have represented each of the two moulds or segments 1. as
constructed with pockets or recesses of different dimensions and they may be so
employed, but it will be understood that the entire enilless chain of moulds or
segments 1. may be constructed with pockets or recesses of one uniform size.
In the example shown, the transverse walls or divisions of one of the moulds
are formed shorter than the longitudinal walls or divisions thereof, and by these
means, I form the slabs with shallow transverse grooves in the surface thereof.
Although I have shown the division walls arranged so as to form rectangular
blocks or surfaces, I would have it understood that may arrange then diagonally
or otherwise so as to produce blocks or surfaces of other shape as desired.
In order to facilitate the delivery of the cast blocks, I form one or more of the
division walls with an inclined face as represented at Figure 3.
It is desirable that the faces of all
but especially so make that face
the division walls should be slightly inclined
which becomes the under wall in delivering
the blocks to the receptacle in the manner described in my said former speci-
fication.
The travel of the endless chain is so timed that tho slag will run into the moulds
or segments I. until the pockets or recesses are filled and until the material rises
above the division walls thus forming to the blocks a foundation or backing of
a given thickness and with an unbroken surface. Or, by supplying the molten
material to the moulds through a number of spouts or through one broud spout,

page_text: may merely fill or only partially fill the pockets or recesses ³ and thus form
separate blocks without connecting backing or foundation.
As the blocks are delivered to the receptacle this backing by the curvature of the
endless chain of moulds or segments becomes severed at the line of junction of such
moulds.
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. In apparatus of the character described in my said former specification, con-
structing the moulds or segments I. with a number of division walls traversing the
surface thereof in any desired direction, in manner substantially as herein shown and
described and for the purpose stated.
2. In an apparatus of the character described in my said former specification, con-
structing the moulds or segments I. with raised side walls and a number of shorter
transverse and longitudinal division walls formed with an inclined fuco or
faces, in manner substantially as herein shown and described and for the purpose
stated.
Dated this 11th day of November 1889
VAUGHAN & SON,
Agents for the Applicant.