Year: 1888

page_text: Date of Application, 8th Mar., 1888
Complete Specification Left, 7th Dec., 1888
Complete Specification Accepted, 8th Jan., 1889
I, GEORGE BELL SHARPLES, of 58 Richmond Grove, Longsight, in the County
of Lancaster, Bleacher, do hereby declare the nature of this Invention to be as
follows:
It consists in certain apparatus whereby I am enabled to alter or reverse the draught
of the flues either automatically or at will so that the smoke arising from the fed fire,
is driven through the unfed or red fire and so consumed. I accomplish this by means
When more
of dampers by opening or closing which I attain the result desired.
than one damper is used I gear or connect them together so that by the opening of
one of the doors to fire up or by the movement of a lever, the smoke can be passed
across the boilers from that flue to the other by a flue provided for the purpose and
admitted beneath the fire of the next fluc, so as to pass completely or partially if
desired through the fire.
Dated this 7th day of March 1888.
JOHN HENRY TOPHAM,
46a, Market Street, Manchester,
Agent to Applicant.

page_text: 1. GEORGE BELL SHARPLES, of Daisy Bank, Prestwich, in the County of Lancaster,
Bleacher, 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 :-
It consists in certain apparatus whereby I am enabled to alter or reverse the draught
of the flues, either automatically or at will, so that the smoke arising from the fed
fire is driven through the unfed or red fire and so consumed.
27
I accomplish this by means of dampers by opening or closing which I attain the
result desired. When more than one damper is required
gear or connect them
together so that either automatically by the opening of one of the doors to "fire up
or by the movement of a lever, the smoke can be passed across the boilers from the
flue that is opened for "firing up" to the other, by a special flue, provided for the
purpose, and admitted beneath the fire of the next flue, so as to pass through the red
or incandescent fire.
"
In order to more fully explain my apparatus send herewith four sheets of
drawings in which, Sheets 1 and 2 show one complete system of dampers and my
method of automatically working the same, and sheets 3 and 4 modifications of my
system. In sheets 1 and 2, Fig. 1 shows a front elevation and two elevations in
section showing respectively the front and back dampers, Fig. 2 a side elevation
partly in section. Fig. 3, a double plan partly in section, showing the boiler when
in ordinary working condition and when opened for "firing up and Figs. 4 and 5
side and front elevations of the automatic reversing apparatus, also partly in section.
In Figs. 1, 2 and 3 the flue marked A in Fig. 1 is supposed to be open in position for
firing up, the opening of the door for this purpose has partially revolved the
connecting shaft a by means of the short lever a 8 this partial revolution by means of
the pulleys c and c 2 connecting chain c3 and pinion wheel c (see Figs. 4 and 5)
moves the rack d to the right, thus actuating the levere and sliding the moveable
clutch el upon the revolving shaft (which revolves with a continuous motion in
one direction and) to which it is attached by a float key, until it engages with the
clutch box attached to the bevel pinion g (which together with the opposite bevel
pinion revolves freely upon the shaft) thus revolving it and setting in motion
thereby the large bevel wheel which is keyed upon the short shaft i carrying a
chain or band drum k, by chains or bands from which the dampers are actuated.
When the bevel wheel has completed a full revolution the stud / 1 projecting from
its surface comes in contact with the lever m and by its means presses the clutch el
out of the clutch box on pinion y 1 which thus ceases to revolve. The effect of the
motion just described is to place the dampers in the position shown in Figs. 1 and
and the upper half of plan shown in Fig. 3. The smoke arising from the newly fed
fire in flue A passes out of the back of the flue and is conducted by the dampers a 2
and a 3 along the side of the boiler by the flue a 5 then by the damper a 4 into the
cross passage beneath the boiler, whence, its only outlet is up the front tube flue 61
(the exterior outlet of which is closed by the damper 69) and beneath the bars of
Hue B where it passes through the fire, and the draught passes out at the back end of
the flue B, it is then conducted downwards beneath the boiler by dampers 2
and 3 and passes underneath the boiler, to damper 4 which being open allows it to

page_text: pass into the side flue 65 and away. The course of the draught is indicated upon the
plan in Fig. 3 by numbered arrows.
When the door of flue A is closed after "firing
up" the dampers remain in the position above described during the time, heavy,
smoke is given off, until the lever a 8 is moved back, when the dampers resume their
normal condition as shown on the lower plan in Fig. 3. When the door of flue B is
opened the course of the draught is reversed (in the manner already described) by
the revolution of the shaft b, dampers a 2, a 3 and a 4 aro opened, and dampers 62, 63
and 64 are closed, and the smoke thus conducted up the tube a 1 through the fire of
flue A. In the foregoing arrangement the dampers receive their motion from the
chain drunk, by means of the chain or band n, the-motion of which is communicated
to dampers a 4, 64, a 9, and 69 by means of connecting rods o and levers p, and to
dampers a 2, a 3 and 62, 63 by means of levers s and connecting rods p, dampers a 2
and a 3, and 62 and 63, being respectively geared and moving together by means of
bevel wheels t, t. It will be perceived that I inay in some instances prefer to directly
actuate the dampers by means of a hand lover attached to the chain n or by pulling
the chain itself. Sheet 4 shows the manner in which the apparatus can be applied
to a different system of boiler flues. Figs. 8 and 9 showing a side elevation and a
plan of the different system,-dainpers a 10 and b 10 are in this instance all that are
required to regulate the draught each being opened as shown on Fig. 8, as their
respective flues, A or B are opened for "firing up." The flue B is supposed to be
opened for this purpose and the numbered arrows show the course of the draught.
The side openings shown in the sides of the hoods covering the lower part of
flues A and B are for the purpose of admitting more air to the second fire if neccessary
and can be opened and closed by hand. On sheet 3 is shown a modification of the
first system in which the radial dampers a 6 and 66 shown in Figs. 6 and 7 are
employed at the back of the boiler in place, of the dampers a 2 and 62, and the
permanent sliding dampers a 7 and 67 in place of radial dampers a 3 and 63.
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 :-
--
1st. The combined system of dampers and fluos, together with the means for
actuating the same, or their mechanical equivalents, substantially as described and
shown hereinbefore, and in the accompanying drawings, for the purpose set-forth.
2nd. The cross fue and the tube Hlues a 1 and 61 substantially as described
and shown hereinbefore, and in the accompanying drawings, for the purpose set-
forth..
..
3rd. The apparatus for automatically actuating the dampers, substantially as
described hereinbefore and shown in Figs. 1, 2, 4 and 5 of the accompanying
drawings, for the purpose set-forth.
4th. The combined system of dampers and flues, formed by the substitution of
radial dampers, a 6 and 66 and lifting or sliding dampers a 7 and 67, for dampers a 2
and 62 and a 3 and 6 3, substantially as described hereinbefore and shown in Figs. 6
and 7 of the accompanying drawings, for the purpose set forth.
5th. The combined system of dampers and flues, substantially as described
hereinbefore and shown in Figs. 8 and 9 of the accompanying drawings for the
purpose set-forth.
1000
JOHN HENRY TOPHAM,
46a, Market Street, Manchester,
Agent to Applicant.