Improvements in Furnace Bars.
Year: 1886

page_text: Date of Application, 1st May, 1886.
Complete Left, 31st Jan., 1887.
Complete Accepted, 29th Apr., 1887.
PROVISIONAL SPECIFICATION.
Improvements in Furnace Bars.
RICHARD ARTHUR WILSON Pendleton Iron Works Manchester Engineer, I do hereby
declare the nature of my invention for IMPROVEMENTS IN FURNACE BARS to be as
follows:-
This Invention relates to Improvements in construction and working my Moveable
Furnace Bars for which Letters Patent were granted me June 12th A.D. 1884
No. 8872. Also a new Bar made up of three Longitudinal Ribs the center one Deep
the sides shallow these are coupled together with a suitable number of Short Ribs to
form air spaces these Ribs are bevelled in a line with the Draught. The Improve-
ments are making the Bars or Frames in Pairs a pair for each side of the Furnace
each pair to be made seperatly to move a quarter revolution so that the clinker and
waste can be cleared into the ash place. To do so the Top surfaces being perpendicular
and face to face and a wide longitudinal opening is made for this purpose. So soon
as the fire is kindled on this pair when reversed the same can be done with the pair
on the opposite side of the furnace this being done without opening door admission of
cold air and their is no loss of steam or waste of fuel.
Dated this 30th day of Anril 1886

page_text: RICHARD ARTHUR WILSON Pendleton Iron Works Manchester Engineer I 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 invention consists in improvements of Furnace Bars Patented April 19th 1878
No. 1516 and June 12th 1884 No. 8872 also an improved Furnace Bar composed of
three Longitudinal Ribs the center one deep the sides shallow these coupled together
with a suitable number of short ribs and bearing ends. These ribs are placed in a
bevelled position at a suitable angle to the line of draught. The front of each rib is
perpendicular for three quarters of an inch and from this to the bottom edge bevelled
in a line with the Draught. The bearing ends may be the usual ones as in case of
the frames fitted with moveable Grids also those with revolving discs described in my
former Patents No. 1516, 1878 and No. 8872 No. 1884. Or they may be also the
Frames with moveable Grids and revolving Dises made with rounded journals or
bearing ends. These to be fitted to suitable bearings and Dead Plate. The front end
on the Dead Plate having beside bearing end a pinion cast or fitted this pinion to be
geared into a segment wheel to each frame. The Shaft carrying segment wheel to
have suitable bearings cast on the under side of the Dead Plate so that the end of
segment wheel shafts can be carried under the front of door frame and fitted with lever
or levers suitable for tilting the frame or frames so as to break up the fuel or when
furnace requires cleaning turn the frame over for clearing the waste into the Ash Box.
One or more of the frames can be tilted together or turned over by gearing the segment
wheels together. I prefer to gear a pair forming one side of the furnace and turning
them face to face in doing this I get a long wide longitudinal opening from front to
back of the furnace for clearance of the waste.
The improvements and description of frames fitted with moveable Grids and
revolving Dises are as follows
The Frames are a series resting on ordinary bearings or rounded Journals as
described The frames and ribs carrying fingers or otherwise are either lengthways
or across the furnace and form one side of the air space openings The other side
being formed by loose moveable Grids supported in improved plan by short pins cast
on the sides of moveable Grid and resting in Journals cast in the corners in the inside
of the frames formerly on loo-e pins through holes in the head of the Grid and sides of
frames On each Gril is cast an arm or lever in which a pin is cast the pin having an
hole bored through the end These pins are for putting on the bar or coupling rod
running the length of the frame for raising the loose Grids and in doing this breaking
up the fire and closing the air spaces. The hole in pin is for Split Cotter pins to
keep the coupling rod in position.
These rods may be coupled to all the Grids in the frame or to every alternate Grid
a rod being coupled to the others on the opposite side of the arm or lever.

page_text: A second rod or lever is coupled to each and to the bell cranked levers on the
rocking Shaft, in front of the Door frame the insertion of loose lever in Boxes of
Bell cranked levers completes the connection for working the moveable Grids by which
the fuel is broken up the gases relieved and the fine waste caused to fall away to the
Ash Place.
The frames with revolving Discs are made up of five longitudinal ribs the center
one chambered to receive Chain Wheels and endless Chain for working the revolving
Discs the 2nd and 4th Rib is deep and holes cast in to form journals for square shafts
carrying Revolving Discs and Chain Pulley carrying endless Chain the side ribs shallow
these longitudinal ribs are connected together by cross section ribs and bearing ends
these cross section ribs divide and form openings in which each section of revolving
Discs work, the holes in Dises being & Chain Wheel being square and the shafts
& these are the same length as width of the frame and are square form a key for
means of revolving the Discs imperceptibly by endless chain passing over chain pulley
on revolving shaft in front of door frame this revolution of the Discs keeps the fuel
loose and open and carries away the accumulations of fine waste also carries the waste
fuel forward to the Pocket at the back or to the front as a forward or backward action
is given to the Chain Wheels.
In order that my improvements may be understood and readily carried out I refer
to the accompanying Drawings Sheet No. 1 represents the frames filled with move-
able Grids on ordinary bearings Sheet 2 represents Frames filled with revolving
Discs on ordinary bearings Sheet 3 represents Furnace Bars with bevelled air
spaces in line with the draught these may have ordinary bearings or rounded
Journal bearings and tilting and upsetting action for cleaning as described on this
sheet this also applies to the Frames fitted with moveable Grids and Frames fitted
with revolving Dises and all longitudinal Block frames a Fig. 1 represents frames
fitted with moveable Grids Fig. 1 & 2 is the dead plate e Fig. 1. 2. 3. 4. 5 & 6
shows the frames d in the Figs. 1. 2 shows cross ribs and fingers cast on them
e Figure 5 Grids in a raised position Dead Plate c Figure 1. 2. 3. 4. 5 & 6 the
frames Figure 1. 2 shows cross ribs and fingers cast on them e Figure Grids
in a raised position Figure 3 Grids in a stationary position figure 3. lever arm
5
cast on moveable Grids Figure 3 short pins improved plan cast on sides of move-
able Grids Figure 3 journals cast in sides of frames in which moveable Grid works
g Figure 6 is short pins cast on sides of moveable Grid in position in the journal
cast on sides of frames e Figure 2 shews connecting rods coupling moveable Grids
to arm of Bell Crank Lever Jk Figure 1 & 2 shaft in front of door frame on which
Bell cranked levers work and in which Levers with Boxes are cast to insert loose
Lever for working Grids Figure 2 Bracket cast on under side of Bridge Plate for
carrying Back bearing the Bridge Plate has openings near the front edge O. Figure 2
for air to pass to Hollow in Bridge Block M. Figure 2 from this Hollow heated
air passes by exit P to perforated Plate at the back of the Bridge Figure is bottom
Bridge on which the Bridge plate rests and on this Plate the Hollow Bridge Block is
built This secures heated air to meet any unconsumed carbon and cause it to burst
into flame and so prevent smoke.
e
Sheet No. 2 Frames fitted with revolving Dises a. Figure 7 is the side Bars to
make out width of furnace is the Dead Plate e the frames in which the revolving
Discs work d Figure 7. 8. 9 & 10 the revolving Dises e Figure 9 enlarged face
view of revolving Discs Figure 10 edge view of Discs Figure 7. 8 & 10 the
chain wheels . Figure 8 the endless chain over chain pulley on the short shafts and
on chain pulley on Shaft Figure 7 & 8 in front of door frame for driving the
Revolving Discs J Figure 7 the large pulley driven from the motive power Figure 8
Bridge forming back of Pocket to which waste is carried Figure the loose door and
rod to close door opening to pocket and when removed to allow the waste to be cleared
from Pocket Sheet 3 the new furnace Bar with tilting and cleaning action the same
is adapted to frames with moveable Grids also frames with revolving Discs also the
new Furnace Bar and all longitudinal Block Bars. a Figure 11 side Bars to make
out width of Furnace Figures 11 & 12 Dead Plate Figure 4. 12. 13 & 14

page_text: Frames Figure 12 the bevelled ribs connecting longitudinal ribs d Figure 12 & 15
rounded Journals in which Bars work e Figures 12 & 15 bearing journal on which
bars rest also journal on which the shafts carrying the segment wheels work on back
edge of Dead Plate Figure 11. 12. 13 & 14 pinions on front end of square cast
in journal of Furnace Bar in which the segment wheels gear Figures 11. 12. 13
& 14 segment wheels h Figure 12 shaft on which segment wheels are fitted
J Figure 11 & 12 door frame front of boiler figure 12. 13 & 14 lever for tilting
frames and turning them for clearing furnace as shewn c. Fig. 13 and when in
statiary position c Figure 14.
Having now particularly described and ascertained the nature of my said invention
and improvements and in what manner the same is performed I do not confine myself
to the details shewn or the mode of accomplishing them as this may be considerably
varied I declare that what I claim is
First the improved fire grate Sheet No. 1 Figures 1. 2. 3. 4. 5 & 6 frames in
which moveable grids work Sheet No. 2 Figures 7. 8. 9 & 10 Frames with revolving
discs as described revolve to keep clear the air spaces of fine waste that would form
clinker also carry the fuel and waste from front to back of the furnace or if desired
from back to front.
Second the new furnace bar Sheet No. 3 Figures 11. 12. 13. 14 & 15 as described
fitted with bevelled ribs in a line with the draught.
Third the tilting and cleaning action Sheet 3 Figures 11. 12. 13. 14 & 15 as described
as applicable to my & all longitudinal frames for breaking up the fuel and cleaning
furnaces in combination with improved bridge as described Sheet 1 Figure 2.
Dated this 29th day of January 1887.