IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATORS
Year: 1874

page_text: LETTERS PATENT to Robert Harris Reeves, of No. 9, Sussex Road,.
Southsea, in the County of Hants, Gentleman, for the Invention of
TMA
COMO AMEA
"
PROVISIONAL SPECIFICATION left by the said Robert Harris Reeves:
at the Office of the Commissioners of Patents, with his Petition,
on the 28th March 1874.
I, ROBERT HARRIS REEVES, of No. 9, Sussex Road, Southsea, in the
County of Hants, Gentleman, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATORS," to be as
follows:-
My Invention consists of a method of constructing inlet, intermediate,
and extracting ventilators for the better supply of fresh air to and the
extraction of foul air from buildings, ships, railway, or other carriages,
or any space where ventilation is required, without the aid of ventilating
shafts or flues. .

page_text: Inlet or Extraction Ventilators.-These ventilators are made of zinc,
iron, copper, wood, glass, or any other suitable material. There must be
a perpendicular aperture through which the air enters; this is formed
by bars of a double tee shape, being placed on each side the distance
apart you wish to form the aperture. The air passing through this
aperture strikes a curved plate or bar placed opposite the aperture on
its concave side, the air then being checked splits itself, and being
guided by bars or plates fixed outside the curved plate on each side of it
forms two columns, returns, and passes round the back or convex surface
of the curved plate in opposite directions, and checks the force of the
current by coming direct or meeting each other at the back of plate,
thereby preventing any force of air or draught in the rooms or buildings.
In intermediate ventilators I employ a modification of the above.. The
plate on which the air strikes may be made square or any convenient
shape, and the aperture may be placed at any angle to form a pattern
on the surface. The advantages gained by ventilators constructed on
this principle are that they form a perfect weatherproof ventilator,
keeping out rain, snow, and slect, while admitting air; they do not
require flues or shafts, and prevent draughts and rain- driven by the
force of the wind instead of going through the ventilator strikes the
concave surface of the plate, and does not enter the room or building
where the ventilator is fixed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
:
filed by the said Robert Harris Reeves. in the Great Seal Patent
Office on the 28th September 1874.
7
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
HARRIS REEVES, of No. 0, Sussex Road, Southsca, in the County.of
Hants, Gentleman, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of March, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did; for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Robert Harris. Reeves, Her
special licence that I, the said Robert Harris Reeves, my executors,

page_text: administrators, and assigns, or such others as I, the said Robert Harris
Reeves, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
3, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland; the Channel Islands, and Isle of Man, an Invention for.
"IMPROVEMENTS IN THE CONSTRUCTION OF VENTILATORS," upon the condition
(amongst others) that I, the said Robert Harris Reeves, my executors or
administrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Robert Harris Reeves, 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 (reference being had to the Drawings accom
panying the same) :-
My Invention consists of a new method of constructing inlet, inter-
mediate, and extraction ventilators, for the better supply of fresh air to.
and the extraction of foul air from buildings, ships, railway or other.
carriages, or any space where ventilation is required, without the aid of
ventilating shafts or.flues.
Inlet or Extraction Ventilators.-These ventilators are made of zinc,
iron, copper, wood, glass, or any other suitable material. There must be
a perpendicular aperture through which the air enters; this is formed
by bars of a double tee shape, being placed on cach side the distance
apart one wishes to form the aperture; the air passing through this.
aperture strikes a curved plate or bar placed opposite the aperture on its
concave side; the air, then being chequed, splits itself, and being guided
by bars or plates fixed outside the curved plate on each side of it, forms
two columns, returns, and passes round the back or convex surface of
the curved plate in opposite directions, and checks the force of the
current by coming direct or meeting each other at the back of plate,
thereby preventing any force of air or draught in the rooms or buildings.
In intermediate ventilators I employ a modification of the above. The
plate on which the air strikes may be made square or any convenient
:

page_text: shape, and the aperture may be placed at any angle to form a pattern
on the surface. The advantages gained by ventilators constructed¨¨ on
this principle are that they form a perfect weatherproof ventilator,:
keeping out rain, snow; and sleet, while admitting air; they do not
requiro flues or shafts, and prevent draughts and rain driven by the
force of the wind instead of going through the ventilator strikes the
concave surface of the plate, and does not enter the room or building'
where the ventilator is fixed.
In thic Drawing accompanying this Specification Figure I. represents
the section of bars above described, which forms the ventilator. The
árrows represents the direction the air travels in passing through thic
ventilator into the building.
Figure 2 represents the section of a ventilator constructed without.
the plates or guides. This I use when it is not necessary to prevent
draughts.
:
Figure 3 represents the mode of constructing a ventilator, the same
section as Figure I., but circular on plan.
Having now described the nature of my Invention, and in what
manner the same is to be performed, I claim the mode of constructing
ventilators, whereby the current of air is divided by striking on a plate,
round which it passes, and meets again on the other side, by which its
force is neutralized, substantially as herein-before described.
In witness whereof, I, the said Robert Harris Reeves, have hereunto
set my hand and seal, this 26th day of September, in the year of
our Lord 1874.
L
ROBERT HARRIS REEVES. (L.S.)
ROBERT HARRIS REEVES. (L.S.)