US936686A - Ventilator for railway-cars. - Google Patents

Description

.T. 5. WARD. VENTILATOR FOR RAILWAY CAB-S.

I APPLICATION FILED MAB. B, 1909.

Inventor:

Patented Oct. 12,1909.

UNITED STATES PATENT ()FFIGE.

JOHN E. WARD, or nnwvomg'n. YL, ASSIGNOR mowimnnecrmem COMPANY, on

NEW 'Y'on'k, 1w v. A ooie'ronn'rroiv or New YORK.

vENTI'LAToR FOR RAILWAY-CARS.

Specifiationof Letters Patent.

Application "fi1ed.March"8,11909.-* Serial No. 4813910;

Toall whomit mag/concern: Be it known that I, JOHN VVARD, a citrzen of the United States, residing'in the" borough of Manhattan;of the clty of New' York, in the'State ofNew'York, have inence being had to the =acc'om'panyi'ng-- drawing, forming a parthereof.

This inventionrelates to ventilators of the so-called torpedo type, adapted 'for'use upon American railway cars, as setforthin'Letters Patent .of theUnited States, No.

911,689, dated February9, 1909,*and it has for its'object to improve and' simplify-the construction of ventilators as shown in said 1 Letters Patent and particularly to -increase the suction from the 'car outward through the ventilator. In the constructi'on'shown in said Letters Patent, the two conical members of the torpedo ventilatorhave H1611 bases separated by an opening and-a wrnd break band surrounds thebases. It is-found,--how'- ever, not only that the cost of construction can be reduced by bringing the bases of the conical members together and dispensingwith the surrounding wind break band but that through the presentation of an angular surface rather than the surface of a flat band to the air through which the ventilator is moved, and with the continuation of the flange around the opening in the underside of the conical members below the margin of the opening, so that it shall act upon the air, the suction of the ventilator, as it moves through the air with the car, is considerably increased.

The invention will be more fully explained hereinafter with reference to the accompanying drawing in which it is illustrated and in which Figure 1 is a view, partly in section and partly in elevation, illustrating the applica-.

tion of the improved torpedo ventilator to a railway car of the American type. Fig. 2 is a view in elevation from the left hand in Fig. 1. Fig. 3 is a detail view in section in the vertical plane of the longitudinal axis of the ventilator, on a larger scale, showing also a portion of the car roof.

Railway cars of the American type, to which the present improvement is applied, have the center portion a of the car roof raised above the main portion 6, the space between the portions a and b of the roof being closed by a vertical 5 wall- 0, which" is a usually double-as shown In the ventilation of such a car with the improved torpedo l ventilator, the ventilating" openings are formed in the vertical wall 0 of the roof, a sleeve ol being extended through the wall 0 and provided'witha regulator-e of ordinary" As described constructionat its inner end. m said-Letters-Patent,the tube (Z is slightly fiaring toward the inner end and is inclined downwardly toward the outside so that the draft through the tube and the suction of foul airthrough'the' monitor roof of the car shallbe facilitated and so that any water which may enter the tube as well as any cin ders,shall be'dischargedoutside the car.

Theventilator hood 7' isprovided with a' fiange'f" by means'of which it'maybe secured to the walls 0 about the projecting end of the sleeve d. It comprisestwo generally conlcal members g] and g" which are placed base to base,-

hood and is formed as an integral part thereof, an opening it being formed through the upper wall of the member 9. In the underside of the double conical hood is an opening 9 doubly V-shaped and extending from near the apex of one member to the apex of the other. A flange g is extended downwardly entirely around the opening 9 forminga wind deflector on all sides of the opening, even at its widest part, which, as the ventilator is moved through the air with the car, strongly deflects the air currents downward so that they act with a powerful aspirating or suction effect upon the air within the hood and thus upon the air within the car. This effect of the deflecting surface, which is greatest at the widest part of the opening, is promoted and assisted by the prow-like form of the ventilator which is secured by bringing the bases of the conical members together without a flat surrounding surface, this prowlike form dividing the air currents and causing them to spread outwardly as they move downwardly (that is, the movement of the air and ventilator being relative) and thus with the desired aspirating effect throughout the entire length of the opening upon that side which is in advance as the car moves. It is found that with this construction the air in the car is much more quickly changed than with a construction Patented Oct. 12, 19091 the-bases meeti'ng' without any opening. between them." A' connecting tube It connects the" tube (Z withthe ventilating in which the bases of the conical members are separated by an opening and said opening is covered by a flat wind break band.

I claim as my invention:

1. The combination with a railway car having a roof with a raised central portion and a vertical wall connecting said raised portion with the lower portion of the roof, of a ventilator hood secured to said vertical wall and communicating with the interior of thercar by means of a passage extending through said wall, said ventilator hood comprising two hollow conical members arranged with their bases in contact throughout their entire extent whereby a continuous and a pointed or prow-like surface is presented to the air; and comprising also a connecting tube the walls of which merge with the wall of one of said conical members and which tube forms a communication between the interior of said conical members and the passage which extends through the vertical wall as aforesaid; the-lower portion of the walls of said conical members A being cut away to thereby provide an unobstructed opening in the under side of the ventilating hood, said opening being widest at the bases of said conical members and the edges of which opening extend to the apices of said members.

2. The combination with a railway car having a roof with a raised central portion and a vertical wall connecting said raised portion with the lower portion of the roof,

of a downwardly inclined tube extending through said vertical wall and terminating at the exterior surface thereof; and a ventilator hood secured to said vertical .wall and communicating with the outer end of said tube, said ventilator hood comprising two hollow conical members arranged at right angles to said vertical wall and with their bases in contact throughout their entire extent whereby a continuous and a pointed or prow-like surface is presented to the air; and comprising also a downwardly inclined connecting tube the walls of which merge with the wall of one of said conical members and which tube forms a communication between the interior of said conical members and the tube which extends through the vertical wall as aforesaid; the lower portion of the walls of said conical members being cut away to thereby provide an unobstructed opening in the under side of the ventilating hood, said opening being widest at the bases of said conical members and the edges of which opening extend to the apices of said conical members; said ventilator hood having a depending flange formed upon said conical members and surrounding said opening.

This specification signed and witnessed this 6th day of March, A. D., 1909.

JOHN E. YARD. Signed in the presence of: ELLA J. KRUGER, AMBROSE L. OSHEA.

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