Improvements in Fire-bars.
Year: 1890

page_text: Date of Application, 26th Aug., 1890
Complete Specification Left, 29th Dec., 1890-Accepted, 31st Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Fire-bars.
I, WILLIAM DALE 8 Grantham Road Sleaford Lincolnshire Engineer, do hereby
declare the nature of this invention to be as follows:--
Each fire bar is formed with a central web deeper at the centre than at the ends,
the web papers from the top to the bottom, the top of each bar projects on each
side forming square or oblong studs and spaces alternately. The studs on one side
of the bar being opposite the spaces on the other side.
The form of each stud at the side is V shaped about one third the depth of the
web of the bar. Long bars have one or more of the studs projecting from the top
to the bottom of the web on each side parallel to each other, and slightly wider
than the other studs, thus forming an air passage between the studs of
adjacent bars.
The right and left side bars have the studs on one side somewhat longer than the
studs on the opposite side, the longer studs are formed with steps on the underside
so that portions may be broken off to facilitate fitting the side bars to the sides of
the fire box of the furnace in which they are placed.
Each bar at the ends forms a slotted undercut stud, to facilitate fitting the ends
of the bar to the front and back of the fire box. Fire bars so formed are of less
weight and ensure perfect combustion of the fuel.
Dated this Twenty-fifth day of August 1890.
H. W. GOUGH, C.E.,
Agent.
COMPLETE SPECIFICATION.
Improvements in Fire-bars.
I, WILLIAM DALE, 8 Grantham Road, Sleaford, Lincolnshire, 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 :-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows in plan two of my improved fire bars A and B.
Figure 2 an outer side view of the bar A.
Figure 3 a side view of the bar B.
Figure 4 a sectional view of the two bars on the line a, a, Figure 1, and
Figure 5 an end view of the two bars.
Each fire bar is formed with a central web C deeper at the centre than at the
ends, and tapering from the top to the bottom, the top of each bar projects at
intervals on each side forming V shaped studs D.
Long bars have one or more studs E projecting from the top to the bottom of
the web on each side parallel or nearly so to each other, and slightly wider than
the other studs, thus forming an air passage between the studs of adjacent bars and
preventing the bars from warping when placed side by side.
The number of studs E on each side of the bar is governed by its length, a bar
two feet six inches long would have two such studs on each side, and a bar three
feet long, three on each side, and so on in proportion.
The right and left side bars have studs F on one side, somewhat longer than the
studs on the opposite side, the studs F are formed with undercut steps on the lower
Price 6d 1

page_text: side, so that portions may be broken off to facilitate fitting the side bars, to the
sides of the fire box of the furnace in which they may be placed.
Two side bars A are fitted to the sides of each fire box with as many intermediate
bars B placed between them as the width of the fire box will allow, the ends of the
whole of the bars form slotted undercut studs F' shown at Figures 1, 2, 3 and 5
portions of which may be broken off to facilitate fitting the ends of the bars to the
front and back of the fire box.
Fire bars so formed are of less weight than ordinary fire bars, and ensure perfect
combustion of the fuel.
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 I
claim is:
1. The improvements in fire bars, substantially as described and illustrated in the
drawings annexed.
Dated this Twenty seventh day of December
く
Witness,
H. W. GOUGH, C.E.,
Nottingham.
WILLIAM DALE.