Year: 1886

page_text: Date of Application, 28th Dec., 1886
Complete Left, 27th Sept., 1887
Complete Accepted, 28th Oct., 1837
1. CHARLES SWINDELL Bank-Cashier of No. 12 Kenwood Road Sheffield in the
County of York do hereby declare the nature of this invention to be as follows:-
It relates to Stove-grates and fire-places and to improvements in the construction
of the same designed to control the consumption of fuel, to throw out more heat into
the apartment in which the stove is placed, to prevent down-draughts to modify the
draught at will, and to facilitate the cleaning of the flue.
To obtain these results I use firstly a movable panel for the back part of such
Stove grate of such shape and dimensions as will afford by a simple movement of
same alternate openings for the escape of the smoke into the flue at a higher or lower
elovation and at a higher or lower pressure as desired. This movable panel works on
an open frame attached to sides or other part of stove-grate, or fire place, which frame
may be fixed in a vertical or nearly vertical position or with a list forward so that the
panel is held closely to the frame by gravitation; it may be moved by chain and
pulley, rack, lever or other suitable means in an upward or downward direction on
the frame; or the panel may be of a shape forming a right angle or other suitable
angle or curved with the convex side working on the frame and have pivots attached
to the sides at or near the intersection or other suitable place working in sockets
attached to the frame; such sockets being made open at the upper side so that the
panel may be removed to facilitate the cleaning of the flue; when a curved panel is
used the frame would have the same curve and the extremities of the panel would
describe an arc when moved.
When a moderate draught is required the opening into the flue will be at the upper
edge of panel and when a keener draught is desired the aforesaid movement will close
the opening at the upper edge and make an opening at the lower edge of panel, the
forward list of the panel and frame causing the lower opening to project partially
over the fire-box, thus increasing the draught; casings may be attached to stove-
grate near either end of panel to form with part of panel or plates or tubes attached
to panel a contracted passage into flue to assist in effecting this object.
Secondly I use a movable fire-box or fire-grate moving on a sloping rack and

page_text: supported at the front part on legs or other projections which may be adjusted in any
of the teeth of rack at various elevations, the back part of this fire-box being supported
on radial arms by pivots or hinges thereto and attached in the same manner at the
other extremity to frame of rack or to other part of stove the arms moving in an arc
and adjusted so as to follow the movement of the front part of fire-box on the
rack, this arrangement will give a combined vertical and horizontal movement, the
rack and fire-box may be moved bodily backwards or forwards or the fire-box may be
moved vertically by any other mechanical means any suitable material or any of such
materials combined may be used in the manufacture of any part of this invention.
The forward movement of fire-box is used when it is desired to throw more heat into
the apartment and the upward movement to make a keener draught.
Now in order that parts of my invention may be more clearly understood I have
hereunto annexed one sheet of drawings of such parts. Fig. 1 shows a vertical
middle section of Stove-grate with movable panel of an angular shape and moving on
pivots. The panel A with pivot moving on open frame B with socket or hook at the
back is drawn by ring affixed to same and held in position by cotter e leaving opening
into flue through contracted passage a, a D being brick wall and bottom of flue.
The movable fire-box marked C is here shewn at a higher elevation supported on
radial arms d legs and rack b. Fig. 2 shews the same parts with the panel and
fire-box in the alternative positions described.
Dated Twenty-third day of December Eighteen hundred and eighty-six.

page_text: I CHARLES SWINDELL Bank-Cashier of No. 12 Kenwood Road Sheffield in the
County of York 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 relates to Stove-grates and fire-places and to improvements in the construction
of the same designed to allow of the relative positions of the fire-box or part con-
taining fuel and the opening to carry the smoke into flue being easily varied, to
control the consumption of fuel and the heat given off therefrom into the apartment,
and to prevent down-draughts.
To obtain these results I use a moveable panel at the back part of such Stove-grate
or fire-place which when moved as hereinafter described will afford alternate openings
into flue at a higher or lower elevation with respect to the position of the fire-box;
this moveable panel works on an open-frame attached to the sides or other parts of
stove-grate or fire-place which frame is fixed in a vertical or nearly vertical position
or with a list forward so that the panel may be held closely to the frame by the force
of gravitation or the open frame may be dispensed with and the panel will then rest
or work on other parts of such stove-grate or fire-place; the panel itself is curved or
bent or of a shape so that its vertical section shews two lines intersecting each other
at a right angle or any other suitable angle and moves on pivots attached to sides of
panel at or near the point of intersection or vertical centre of such panel or plate;
these pivots work in sockets or hooks attached to the aforesaid frame or other parts of
stove grate or fire place, the extremities of panel or plate when moved describing
an arc.
When a moderate draught is desired the opening into flue will be above the angle
of intersection of panel or the position of pivots at or near the vertical centre of panel
and when a keener draught is required the upper edge of panel or plate is drawn
forward and secured by a cotter or other suitable means to the open frame aforesaid
or other part of stove-grate or fire-place so as to close the upper opening and
disclose an opening below the said angle of intersection of panel or position of pivots
and more immediately over the fire-box thus causing a keener draught: casings may
be attached to panel or other parts of stove-grate so as to form with panel itself or
part of panel a contracted passage into flue.
I also use a moveable fire-box or fire-grate to allow of further variation in the
relative positions of fire-box and openings into flue, moving on a sloping rack and
supported at the front on legs or fret which may be placed on any of the teeth of rack
at various elevations the back part of this fire-box being supported on radial arms
attached thereto and attached at the other extremities of arms to the rack or other
part of stove grate, moving in an arc and adjusted to follow the movement of fire-box
on the rack; this arrangement will give a coinbined vertical and horizontal movement
of the fire-box and the rack and fire-box may be moved bodily backward or forward ;

page_text: cast metal, fire-brick, asbestos or any other suitable material or such materials
combined may be used in the manufacture of any part of such Stove grates or fire-
places.
Now in order that my invention may be clearly understood I refer to the drawings
left with the provisional specification illustrating my improvements as hereinbefore
set forth and in which the same letters of reference indicate the same or similar parts
any of the figures.
in
Fig. 1 shows a vertical middle section of Stove-grate, with moveable panel at back,
of curved or angular shape, and moveable fire-box, the panel A with pivot working
on open frame B with socket or hook attached to back of such frame is drawn
forward by ring attached to upper part of such panel and held in position by cotter e
leaving opening into flue through contracted passage a a, being section of
wall and bottom of flue.
The moveable fire box marked C is here shewn at the highest elevation supported on
radial arms & legs c and rack b.
Fig. 2 shews the same parts with the panel and fire-box in the alternate positions
described.
Having now particularly described and ascertained the nature of my said invention
and the manner in which the same is to be performed I declare that what I
claim is
Firstly. The use in the back part of any stovo grate or fire-place of a moveable
panel, curved or of a shape so that its vertical section shews two lines intersecting
each other at a right angle or any other suitable angle and moving on pivots affixed
to sides of panel or on portions of panel working in hooks, sockets or depressions
attached to or being part of, other parts of stove-grate or fire-place so that when the
panel is moved such movement will afford alternate openings at a higher or lower
elevation with respect to the position of fire-box, for the escape of the smoke into the
flue.
Secondly. The use in any stove-grate or fire-place of moveable fire-box which may
be adjusted vertically at a higher or lower elevation with respect to the openings into
flue and horizontally nearer or further away from such openings, moving on a sloping
rack and supported at the front on legs or fret which can be placed in any of the
teeth of rack at various elevations, the back part of such tire-box being supported on
radial arms attached thereto and attached at the other extremities to the frame of
rack or other parts of fire-place or stove-grate, the radial arms moving in an are and
adjusted to follow the movement of fire box on the rack.
CHAN. SWINDELL,
Applicant.