Improvements in Ventilators.
Year: 1894

page_text: Date of Application, 13th Aug.. 1894
Complete Specification Left, 5th Apr., 1895-Accepted, 11th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Ventilators.
I, RICHARD ROBERT LOANE ROSOMAN, of "Highlands," Itchen Ferry,
Southampton, in the County of Hants, Gentleman, do hereby declare the nature of
this invention to be as follows :-
My invention relates to ventilators.
The main object of my said invention is to provide a simple and efficient
ventilator for ventilating railway carriages, and for all similar purposes.
In making a ventilator according to one form or modification of my said
invention, the same consists of a circular case or tube of a convenient diameter
and length with open ends, the sides of the case may be parallel or curved as
desired.
The case is fitted on the roof of a carriage so that the bottom part projects
through same, and is secured to the roof by means of a flange projecting all round
the case from the sides of same.
I further provide a dome shaped cover for the top of case which is of a diameter
equal to that of the upper part of case, the cover does not fit on the latter but
is secured in position so that a vertical space intervenes between the bottom of
dome and the top of case.
Around the top of case 1 fit a ring, or collar, which covers the aforesaid opening
or space, left between the bottom of dome and top of case, the ring overlapping
the same, the vertical sectional form of the ring for its entire circumference is
preferably shaped, and there is a space between the upper and lower edges of
the ring, or collar, and the outside of case and dome all around same; and the
ring is secured to the top of case and bottom of dome by suitable arms or
brackets.
I may sometimes divide the case into two or more divisions or chambers by
fitting vertical diaphragms in same.
By means of the form and arrangement of the ventilators, constructed according
to my invention, it is considered that when they are fitted to say, the roof of a
railway carriage and the latter is in rapid motion, the foul or heated air will be
drawn or sucked from the carriage up through the case and out through the space
intervening between the top of same and the dome, and discharged through the
top and bottom openings between the ring, or collar, and the dome and case, all by
reason of the force with which the outer air impinges against the outside of the
case and dome.
To prevent ingress of rain at the top of case the latter is flanged inwards so
that the bottom edge of dome overlaps horizontally, the opening in the top edge
of case.
Dated this 11th dox of August 1804

page_text: Improvements in ventilators.
I, RICHARD ROBERT LOANE ROSOMAN, of "Highlands," Itchen Ferry,
Southampton, in the County of Hants, Gentleman, 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 :-
My invention relates to ventilators.
The main object of my said invention is to provide a simple and efficient
ventilator for ventilating railway carriages and for other purposes.
In the accompanying drawings,
Fig. 1 is an outside elevation of a ventilator constructed according to my
invention and adapted for use upon the roof of a railway carriage or, say, the roof 1
of a ship's cabin.
Fig. 2 is a plan on top of Fig. 1.
Fig. 3, a central sectional elevation.
Similar letters of reference indicate corresponding parts in all the figures.
A is a base plate, in this plate I provide an opening B, which forms the air
outlet or uptake opening from the compartment to which the ventilator is fitted, to
the said base plate 1 attach a casing C, forming a chamber D, with open top, the
sides of the chamber may be straight or curved as desired, the bottom of casing, or
flange E, projects through the top of compartment, and the ventilator is secured to
the latter by means of the base plate A, bolts or screws passing through same
vertically into the top of the compartment.
I further provide a dome-shaped cover F, and suitably attach same to the top of
casing C, by means of brackets, or stays b, b, so that a vertical opening intervenes
between the bottom of the cover and top of the casing. Around the top of the
casing I fit a ring, or collar G which covers the said opening, the form of the ring
is preferably as shewn on the drawings, the ring is attached to the casing by
suitable brackets, or stays 6, 6, so that there is an opening left between the dome
and top part of casing and the collar, all round same.
To prevent ingress of rain, or water, at the top of casing, the latter is flanged
inwards as shewn so that the bottom edge of dome overlaps the opening in the top
of casing. I may sometimes divide the casing into two or more divisions, or
chambers by fitting vertical diaphragms in same,-communicating, if desired, with
two, or more compartments.
By means of the form and arrangement of the ventilators constructed according
to my invention it is considered that when they are fitted to, say, the roof of a
railway carriage, and the latter is in rapid motion the foul, or heated air will be
sucked or drawn from the compartment, to which it is fitted, up through the
chamber, D, and the opening between the top of casing and the bottom of dome,
and discharged through the openings c, c', into the atmosphere-in manner as
indicated by the dotted arrows-by reason of the force with which the outer air
impinges against the outside of the casing and dome.
Ventilators made according to my invention are never the medium for supply of
air to a compartment and consequent down-draught, they are designed as upcast
ventilatore, as there is no direct communication by means of the ventilator
between the outer air and the compartment to which fitted.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
The combination of parts comprising the casing, C, the dome shaped top F, the

page_text: collar G, and other parts, constructed and arranged substantially as described with
reference to the accompanying drawings, and operating as and for the purpose
specified.
Dated this 4th day of April 1895.
RICHARD ROBERT LOANE ROSOMAN.
Herbert P. Blake,
70, High Street, Southampton, Agent for the Applicant.