Blowers or Draw-plates for Domestic Fireplaces.
Year: 1894

page_text: Date of Application, 8th Mar., 1894
Complete Specification Left, 27th Nov., 1894-Accepted, 29th Dec., 1894
PROVISIONAL SPECIFICATION.
Blowers or Draw-plates for Domestic Fireplaces.
I FRANCIS BENNETT SHUFFREY 245 Stafford Street Walsall Ironmonger, do
hereby declare the nature of this invention to be as follows:-
A blower or draw-plate for domestic fire-places which by means of two shutters
opening outwardly and hinged at an angle may be used to increase or diminish the
draught of ordinary household fire grates, causing either a fast or slow combustion;
and is so arranged that a current of air may be directed to either side thereof by
the entire or partial opening or closing of either or both shutters.
I take a rectangular piece of sheet metal A and draw a straight line (a) dividing
it into two rectangular parts B and C I then take the part C (or either part so
divided) & draw another straight line (6) dividing the part C into two equal
rectangular parts E and F. I then draw straight lines (c and d) dividing each
part E and F into two equal triangular parts H¹ & H³ G¹ & G³, which lines
meet at a point (k) at the intersection of lines (a & b). The triangular parts G¹ & G³
are then cut off from the plate A and hinged together on the lines (c & d) forming
two shutters which open & close outwardly for the purpose of increasing or
diminishing the draught when applied to an ordinary fire grate or for use in any
like manner.
The rectangular plate A may have turning down inwardly from it sides which
causes it to stand as in the ordinary well known draw plate and may be, and by
preference is fitted with a handle or knob for the purpose of removing when not
in use.
Deted this Sirth day of March 1894
COMPLETE SPECIFICATION.
Blowers or Draw-plates for Domestic Fireplaces.
I FRANCIS BENNETT SHUFFREY, of Stafford Street, Walsall, Ironmonger 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 consists of the hereindescribed blower or drawplate which is con-
structed and applied as I will describe by referring to the drawing left with the
Provisional Specification.
Fig. 1. represents a plan of a draw-plate constructed according to my invention.
Fig. 2. is the same drawn in perspective.
I provide a metal plate A which, for convenience of my description I will assume
to be rectangular, but which may be as will be seen hereafter, either rounded or
hollowed to suit any kind of grate with an open fire.
I draw an imaginary line (a) dividing the plate A into two rectangular
parts B and C. I then take the part C and draw a line (b) at right angles to (a)
dividing the part C into two equal rectangular parts E and F. I then draw
lines (c and d) dividing each part E and F into two equal triangular parts H¹ and G¹
Price Rd 1

page_text: Hand G2 which lines meet at the intersection of the lines (a and b). The equal
triangular parts G¹ and G2 are then cut out and made to form shutters hinged on
lines (c and d), these shutters to open and close outwardly by preference.
Applying the draw-plate so constructed to an open fire grate or register grate or
the like, in a suitable position as with an ordinary draw-plate; to cause a quick
current of air through the fuel, the shutters are closed; to retard the current of air
through the fuel, either one or both of the shutters may be opened; to direct the
current of air to any particular part of the fuel, either shutter may be partially or
entirely opened, or,closed..
The metal plate A may have wings or sides attached or forming part of it
hinged or otherwise; as in the ordinary draw-plate of commerce and may be, and
by preference is, fitted with a handle or knob as in Fig. 2 for convenience in
removing when not required for use.
Having now. particularly described and ascertained the nature of my said inven-
tion, and in what manner the said is to be performed, I declare that what I
claim is;
1. The herein described blower or draw-plate consisting of the combination of
two shutters, hinged to a plate of metal, adapted for use as required, and so
arranged that the said shutters can be opened or closed, thereby causing, quickening
or retarding a current of air through the fuel as hereinbefore set forth.
2. In a blower or draw-plate of the kind denoted under Claim One having two
shutters of triangular form hinged diagonally as hereinbefore set forth.
3. The combination of parts constituting the blower or draw-plate arranged and
operating as hereinbefore described and illustrated by the drawing left with the
Provisional Specification.
Dated this 26th day of November 1894.
FRANCIS BENNETT SHUFFREY.