Improvements in or relating to Fire Bars.
Year: 1889

page_text: Date of Application, 20th Sept., 1889
Complete Specification Left, 20th June, 1890-Accepted, 26th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Fire Bars.
I, EDGAR HERBERT HILL, of Standard Hill, Nottingham, in the County of
Nottingham, Lace Manufacturer, do hereby declare the nature of this invention to be
as follows:-
:-
This invention has for its object to construct fire bars of greater strength than
hitherto. In constructing a fire bar according to this invention a strip or bar of
wrought iron is laid longitudinally in the mould in which the fire bar is to be cast so
that when the molten metal is poured into the mould it will surround the said wrought
iron bar or strip. This wrought iron bar or strip is of any desired shape suited to
the section of the fire bar.
It will thus be seen that the strength of the fire bar is considerably increased and
even if the said bar when in use becomes cracked the wrought iron core will prevent
it from falling.
Dated this 20th day of September 1889.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Fire Bars.
1, EDGAR HERBERT HILL, of Standard Hill, Nottingham, in the County of
Nottingham, Lace Manufacturer, 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 has for its object to construct fire bars of greater strength than
hitherto. In constructing a fire bar according to this invention a strip or bar of
wrought iron is laid longitudinally in the mould in which the fire bar is to be cast so
that when the molten metal is poured into the mould it will surround the said wrought
iron bar or strip. This wrought iron bar or strip is of any desired shape suited to the
section of the fire bar.
It will thus be seen that the strength of the fire bar is considerably increased and
even if the said bar when in use becomes cracked the wrought iron core will prevent
it from falling.
In the accompanying drawings Fig. 1 is a side elevation of an inverted fire bar
standing on a plate which forms the bottom of the mould in which the bar is cast.
Fig. 2 is a plan and Fig. 3 is a section taken across the centre of Fig. 1.
The plate A is made of steel wrought or malleable iron or similar metal of a tougher
nature than ordinary cast iron and is cast in the bar being supported during the
process of casting by pins B which fit into corresponding holes in the plate A and
plate C, the latter forming the base of the mould.
In the process of moulding the moulding box is placed on the plate C, the pattern
is inverted and placed on the plate also accurate adjustment being secured by the
pins B.
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. In a fire bar the casting of a steel malleable iron or similar plate such as A in

page_text: the interior thereof substantially as and for the purpose described and illustrated in
the accompanying drawings.
2. A fire bar containing a steel malleable iron or similar strengthening plate such
as A substantially as described and illustrated in ile accompanying drawings.
Dated this 19th day of June 1890
EDGAR HERBERT HILL.
W. P. Thompson & Boult,
Agents for the Applicant.