An Improved Ventilator for Buildings and the like.
Year: 1894

page_text: Date of Application, 12th May, 1894
Complete Specification Left, 7th Mar., 1895-Accepted, 13th Apr., 1895
PROVISIONAL SPECIFICATION.
An Improved Ventilator for Buildings and the like.
I VINCENT KNOWLES, of Humber Dock Street, Hull in the County of York,
Builder, do hereby declare the nature of this invention, to be as follows:-
The object of my invention is to provide a ventilator for buildings, which shall
be easy to fix, for conveying air beneath ground floors when such floors are on a
level with the street, or if they are lower than the street, or for ventilating rooms
no matter how the floors are situated.
1 construct my invention as follows:-I employ a ventilator (of fireclay,
zinc or any suitable metal or material) having preferably an oblong front
of suitable depth and length, this front or mouth is straight for a short
distance, and is then bent and continued diagonally for a suitable distance
and then straightened again for about the same distance as the top, thus having
two flat surfaces, the top and bottom, with a diagonal part connecting them;
the ventilator being hollow throughout.
I
The ends of the ventilator may have a suitable air brick fitted for regulating
the quantity of air admitted into the room, and within the body of the ventilator
may form projections turning outwards, but the ventilator being reversible if it
is turned the other end up these projections will face inwards, the object of them
being to prevent any air going in, and allowing only air to pass out if the projections
point outward, and allowing air to pass in only if the projections point inward.
Steps may be formed on the inclined or diagonal parts of the contrivance outside,
so that when being built into a wall, the mortar, bricks or the like will grip and
not slip on such parts as if they were smooth.
The ventilator can be made to fit any thickness of wall, and when fixed one of
the mouths is at the outside of the wall, and the other inside the wall in the room,
one being lower than the other, this construction of ventilator being specially
applicable for fixing in rooms where the floor is lower than the street, also for
admitting fresh air under floorboards to keep them sweet and sound, and in most
cases where a straight ventilator cannot be employed.
Dated this Tenth day of Mar 1894
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Agent for the Applicant.
עעעVV
DIETTIVATION.
An Improved Ventilator for Buildings and the like.
I, VINCENT KNOWLES, of Humber Dock Street, Hull, in the County of York,
Builder, do hereby declare the nature of my 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 my invention is to provide a ventilator for buildings which shall
be easy to fix, for conveying air beneath ground floors when auch floors are on a
level with the street, or if they are lower than the street, or for ventilating rooms
no matter how the floors are situated.

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 shews. a front view of my improved ventilator.
Fig. 2 shews side view of my improved ventilator built into a wall.
Fig. 3 shews a sectional view of same with projections inside.
Fig. 4 shews view of my improved ventilator fixed for ventilating floor when
below level of street or the like.
I construct my invention as follows:-I make my ventilator of fire clay,
zine or any suitable metal or material, having preferably an oblong front A.
of suitable length and depth, this front or mouth is straight for a short
distance at B, and is then bent and continued diagonally for a suitable distance
at C, and then straightened again for about the same distance as at the top,
at D, thus having two flat surfaces, B and D), with a diagonal part C connecting
them, the ventilator being hollow throughout.
The ends of the ventilator may have a suitable air brick E. fitted for regulating
the quantity of air admitted into the room, and within the body of the ventilator
I may form projections F turning outwards, but the ventilator being reversible if it
is turned the other end up, these projections will face inward, the object of them
being to prevent air going in, and allowing only air to pass out if the projections
point ontward, and allowing air to pass in only if the projections point inward:
The projections would preferably be formed in ventilators used for carrying
vitiated air from rooms, such ventilators being fixed near the ceiling as shown
at Fig. 3.
Steps G may be formed on the inclined or diagonal parts of the contrivance
outside, so that when being built into a wall, the mortar H, bricks J or the like
will grip and not slip on such parts as if they were smooth.
The ventilator can be made to fit any thickness of wall, and when fixed one of
the mouths is at the outside of the wall, and the other inside the wall in the room,
one being lower than the other, this construction of ventilator being specially
applicable for fixing in rooms where the floor is lower than the street, and in all
cases where a straight ventilator cannot be employed, see Fig. 4.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A ventilator with flat top. B and bottom D, diagonal body C, and bating air
brick E, and with or without projections F and steps .G substantially as shown
and described.
Dated this Eleventh day of Bohmian 1005
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Agent for the Applicant.