Year: 1887

page_text: Date of Application, 13th Apr., 1887
Complete Left, 29th Oct., 1887
Complete Accepted, 29th Nov., 1887
We, SAMUEL PROCTOR, of 12 Royal Avenue, Chelsea, in the County of Middlesex,
Butler, and GEORGE ALFRED MALTSTER, of 186 Walton Street, Chelsea aforesaid,
Zinc Worker, do hereby declare the nature of our said invention to be as follows:-
The object of our invention is to effect the cure of smoky chimnies, and to improve
the draught in chimnies with open fire places.
In carrying out our invention we fit a horizontal plate or diaphragm across the
opening of the chimney, at a suitable height above the fire place. One, two, or more
openings, is or are made in this plate, in which one, two or more screw fans is or are
fitted. In some cases one screw fan is sufficient in other cases two or more are
required. Each fan is mounted upon a vertical axis, and the periphery or ring, joining
the outer ends of the fan blades, is made sufficiently heavy to ensure regularity of
rotation.
One form of our invention consists of a multiple-bladed helice, working in a trun-
cated cone, or cylinder; having a fan above and below the same, each revolving
independently of the other.
The upward motion of the heated air, smoke, and gases, causes the screws, helices,
and fan or fans to rotate; and the regularity of such rotation, arising from the weight
of the rims, causes the smoke also to ascend with regularity, and, in combination with
the plate or diaphragm, effectually prevents downdraught.

page_text: Improved Smoke-preventing Apparatus.
We, SAMUEL PROCTOR, of 12 Royal Avenue, Chelsea, in the County of Middlesex,
Butler, and GEORGE ALFRED MALTSTER, of 186 Walton Street, Chelsea aforesaid,
Zine Worker, do hereby declare the nature of our said invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object of our invention is to effect the cure of smoky chimnies, and to improve
the draught in chimnies with open fire places.
In carrying out our invention we fit a horizontal plate or diaphragm across the
opening of the chimney, at a suitable height above the fire place, or utilise an existing
plate for the same purpose. One, two or more openings, is or are made in this plate,
in which one, two or more screw fans is or are fitted. In some cases one screw fan
is sufficient in other cases two or more are required. Each fan is mounted upon a
vertical axis, and the periphery or ring, joining the outer ends of the fan blades, is
made sufficiently heavy to ensure regularity of rotation.
One form of our invention consists of a multiple-bladed helice, working in a trun-
cated cone, or frustum of a cone, or in a cylinder; having a fan enclosed in the
same.
The upward motion of the heated air, smoke, and gases, causes the screws, helices,
and fan or fans to rotate; and the regularity of such rotation, arising from the weight
of the fans or of their rims, causes the smoke also to ascend with regularity, and, in
combination with the plate or diaphragm, effectually prevents downdraught.
And in order that our said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1 is an elevation of the invention, Fig. 2 is a view of the underside of the same,
and Fig. 3 is a top view.
a is the external case, in the form of a frustum of a cone, open at the top and
bottom. 6 is a vertical shaft or spindle working in bearings at the top and bottom.
In the drawings the screw c attached to the spindle is shewn four-bladed, but we do
not confine ourselves to any particular number of screw blades. d d are brackets for
supporting the apparatus upon the plate e.
When the apparatus is fitted to a register stove, a hole is formed in the plate, or one
of the plates, above the fire, slots being also cut to allow the brackets to pass through,
and on partially rotating the same, so as to pass the brackets away from the slots, the
apparatus is readily secured either by its own weight resting on the plate, or by means
of screws, or other ordinary appliances.

page_text: Having now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed, we declare that what we
claim is :-
1. The method of effecting smoke prevention by means of helical structures mounted
and rotating upon or around vertical shafts, fitted, arranged, and operating substan-
tially as herein before described and shewn on the drawings.
2. The general construction, arrangement and combination of the several and
respective parts, together forming our improved smoke-preventing apparatus, substan-
tially as herein before described and shewn on the drawings.
GEO. DOWNING,
Agent for Applicants.