Improvements in Car ventilators.
Year: 1894

page_text: Date of Application, 7th Nov., 1894
Complete Specification Left, 10th July. 1895-Accepted, 10th Aug.,
1895
Improvements in Car ventilators.
I, ARTHUR JOHN WALKER of 764 Broad Street Newark, County of Essex and
State of New Jersey, U.S.A., Machinist, do hereby declare the nature of this
invention to be as follows:-
-
The object of this invention is to provide a ventilator especially adapted for
street and railway cars, of simple and durable construction, reliable, efficient and
automatical in operation.
The invention consists in the improved car ventilator and in the combination
and arrangement of the various parts thereof, substantially as will be hereinafter
more fully described and finally embodied in the clauses of the claims.
Referring to the accompanying drawings in which like letters of reference
indicate corresponding parts in each of the several figures;
Fig. 1 illustrates a portion of a car provided with my improved ventilator;
Fig. 2 is an enlarged central longitudinal section through one of the ventilators
and Fig. 3 a similar view of a modified form thereof.
In said drawings b, b represent the ventilators which are secured in any desired
manner to the roof or sides of the car a and are in communication with the interior
thereof.
Each of said ventilators consists of a horizontally arranged tube c having funnel
shaped ends d and in its lower side a tube e secured to the roof of the car.
In Fig. 2 of the drawing said tube e is secured to the top of the roof and is
provided at its lower end with a series of perforations or water outlets f.
Within said tube and communicating with the interior of the car through its
funnel shaped mouth his the tube g formning with said outer tube e a cylindrical
reservoir or chamber as will be manifest.
Within the tube e and covering a certain portion of the cross section of the
tube c is fulcrummed as at m the damper the area of the portion above the axial
line m being larger than the area of the portion below the same.
In operation when the car is moving in the direction of the arrow R (Fig. 2)
the air entering the tube c in the direction of the arrow P will produce while
passing over the upper edge of the damper i-a vacuum in rear of said damper
and thus will suck the bad air out of the car through tube g.
The current
thus produced is indicated by the arrows Q. When the car is moving in the
opposite direction the damper i by action of the inflowing air current will be
thrown over into the position shown in dotted lines.
Should for instance in rainy weather water be carried into the tube e, the same
will strike against the damper i and will flow into the receptacle formed between
the tubes e and g and from there through perforations to the roof of the car.
In Fig. 3 I have illustrated a simplified form; the tube e penetrating the roof
of the car and terminating into the funnel o. At each side of the damper i are
arranged deflector plates n which will in case of incoming water direct it over the
top of the damper and it thus will be carried away through the air current, without
entering the tube e.
Dated this 7th day of November 1894.
J. P. BAYLY,
18 Fulham Place, W., Agent for the Applicant.

page_text: I, ARTHUR JOHN WALKER of 764 Broad Street Newark, County of Essex and
State of New Jersey, U.S.A., Machinist, do hereby declare the nature of my
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 this invention is to provide a ventilator especially adapted for
street and railway cars, of simple and durable construction, reliable, efficient and
automatical in operation.
The invention consists in the improved car ventilator and in the combination
and arrangement of the various parts thereof, substantially as will be hereinafter
more fully described and finally embodied in the clauses of the claims.
Referring to the drawings left with the Provisional Specification in which like
letters of reference indicate corresponding parts in each of the several figures:
Figure 1 illustrates a portion of a car provided with my improved ventilator;
Figure 2 is an enlarged central longitudinal section through one of the
ventilators and Figure 3 a similar view of a modified form thereof.
In said drawings b, b represents the ventilators which are secured in any desired
manner to the roof or sides of the car a and are in communication with the interior
thereof.
Each of said ventilators consists of a horizontally arranged tube c having funnel
shaped ends d and in its lower side a tube e secured to the roof of the car.
In Fig. 2 of the drawing said tube e is secured to the top of the roof and is
provided at its lower end with a series of perforations or water outlets f.
Within said tube and communicating with the interior of the car through its
funnel shaped mouth is the tube y forming with said outer tube e a cylindrical
reservoir or chamber as will be manifest.
Within the tube e and covering a certain portion of the cross section of the
tube e is fulcrumed as at m the damper the area of the portion above the axial
line m being larger than the area of the portion below the same.
2
In operation when the car is moving in the direction of the arrow R (Fig. 2) the
air entering the tube c in the direction of the arrow P will produce while passing
over the upper edge of the damper i-a vacuum in rear of said damper and thus will
suck the bad air out of the car through tube g. The current thus produced is
indicated by the arrows Q. When the car is moving in the opposite direction the
damper by action of the inflowing air current will be thrown over into the position
shown in dotted lines.
Should for instance in rainy weather water be carried into the tube e, the same
will strike against the damper i and will flow into the receptacle formed between
the tubes e and g and from there through perforations to the roof of the car.
In Fig. 3-1 have illustrated a simplified form; the tube e penetrating the roof
of the car and terminating into the funnel o. At each side of the damper i are
arranged deflector plates n which will in case of incoming water direct it over the
top of the damper and it thus will be carried away through the air current, without
entering the tube e.
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 :-
1. A car ventilator consisting of a horizontally arranged funneled tube, a branch
tube provided at its lower end with a series of perforations, said branch tube
communicating with the horizontally arranged tube, a. damper pivotally secured in

page_text: the said horizontal tube, and centrally above the branch tube and a tube
extending from the interior of the car into the branch tube, substantially as
described.
2. A car ventilator consisting of a horizontally arranged funneled tube, a branch
tube connecting the latter with the interior of a car, a damper pivotally secured in
the said horizontal tube and centrally above the branch tube and a deflector plate
on each side of the damper, substantially as described.
Dated this 10th day of July 1895.
J. P. BAYLY,
18 Fulbam Place, W., Agent for the Applicant.
J. P. BAYLY,
18 Fulbam Place, W., Agent for the Applicant.