US1065083A - Ventilator. - Google Patents

Description

R. T. SENTER & L. A. KLING.

VENTILATOR.

APPLICATION FILED AUG, 2, 1911.

1,065,083. Patented June 17, 1913.

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UNTTED STATEs ATaNT carica.

RALPH T. SENTER, OF BUFFALO, NEW YORK, AND LOUIS A. KLING, OF ELIZABETH, NEW JERSEY, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE NEAR-SIDE CAR COMPANY, OF NEW YORK, N, Y., A CORPORATION OF NEW YORK.

VENTILATOR.

To all whom t may concern Be it known that we, RALPH T. SENTER and LoUIs A. KLING, citizens of the United States, residing at Buffalo, in the county of Erie and State of New York, and at Elizabeth, in the county of Union and State of New Jersey, respectively, have invented new and useful Improvements in Ventilators, (Case B,) of which the following is a full, clear, concise, and exact description, refer ence being had to the accompanying drawings, forming a part of this specification.

Our invention pertains to ventilators, and particularly relates to ventilators for use upon the roofs of passenger cars, especially trolley cars and other cars which are run at a comparatively low speed.

It is the principal object of our invention to produce a ventilator which will perform its duties satisfactorily when there is only a slow relative movement between the ventilator and the air, and to this end we so constructthe ventilator that the air currents will be so acted upon as to cause an increased suction to be produced within the same; and it is another object of our invention to provide a ventilator of this character which will be of a simple and durable construction, and one which will meet the various practical requirements for such devices.

A ventilator constructed in accordance with our invention is described in the following specification and shown in the accompanying drawings, in which:-

Figure 1 is a sectional elevation of the ventilator and a portion of a car roof, the section being taken on the line 1 1 of Fig. 2; Fig. 2 is a plan of the ventilator; and Fig. 3 is a perspective view, in section, of the ventilator.

Referring now to the drawings, 10 indicates the top deck of a passenger car, and 11 indicates the lining. The deck 10 and lining 11 are spaced apart, as is usual in car construction, and together from the roof of t-he car. The deck 10 and lining 11 are provided with registering rectangular flue openings, the opening in the lining being larger than the opening in the deck. A flue pipe 12, of rectangular shape in cross section, is mounted in the openings of the deck and lining and extends somewhat above the top surface of the deck. The rear wall of the flue pipe 1 2 is vert-ical and the front Wall Specification of Letters Patent.

Application filed August 2, 1911.

Patented June 17, 1913.

Serial No, 641,963.

inclined forwardly, the pipe thus tapering upwardly and inwardly from the large opening in the lining to the smaller opening in the deck.

The upper end of the flue pipe 12 is surrounded by a rectangular frame, of which the end walls 13 are solid and the side walls are formed of spaced inclined slats 14, which are supported by the end walls 13. One or more partitions 15 are provided between the end walls at each side of the device and constitute intermediate baffles to act upon the air currents, as will be hereinafter described. The top end of the rectangular frame, which is made up of the walls 13 and the slats 14, is closed by a rectangular hood 16, substantially U-shaped in cross section, which is of greater length and width than the frame. The hood 16 is open at its ends, but is closed at the sides, being curved downwardly at its side portions to meet the surface of the deck 10,-whereby a pair of unobstructed longitudinal passages or tunnels 17 is produced, through which the air may flow past the transverse openings formed between the end walls 13 and leading to the flue. In order to give strength to the hood and to impart a finished appearance thereto, its front and side edges are flanged as at 18.

Wlhen the device is in use the air will strike against the flat vertical end wall or baiiie 13 between the tunnels 1.7 and will be deflected about the sharp corners of the baffle at a high velocity which will materially' increase the suction effect caused by that portion of the air which has unobstructed passage through the tunnels. The portions of the air passing across the transverse openings will impinge against the intermediate baflies 15 and be deflected away from the openings in such a manner as to further increase the suction effect. This suction effect is, of course, communicated through the flue 12 to the interior of the car and the foul air is thus exhausted through the flue and the frame. The construction of the device and the arrangement of the several parts thereof results in a strong suction effect, and, consequently, in a very efficient ventilator. The disposition of the hood and of the slats 14 is such that it is impossible for rain or snow to enter the flue 12. The passage of the water from the deck 1() into the ue is prevented by the upwardly eX- tending end of the flue. In order to provide against the cntry of dust or other foreign particles into the car through the ventilator we provide the lower end of the flue 12 with a screen or grille 19.

lVhcn used upon a street car, one ventilator will not give the displaccn'ient of air which is usually required; and, in order that the requisite displacement may be obtained, a plurality of ventilators are employed, placed in such positions upon the roof as may be convenient. The ventilator is of a simple construction and has a high eX- haustive power when the speed of its movement relatively to the air is com aratively low moreover it is quite watertig t.

In cars of the type in which the sash, when raised, enters the rootl of the car the tiue pipe l2 may be omitted between the deck and lining, to allow for the movement of the sash.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is:

l. The combination with a roof having an opening therein, and a flue communicating with said opening, of a hood having parallel side walls and open ends arranged above the opening and having its walls secured to the roof in spaced relation to the sides of the opening, and walls extending from the ends ot the opening to the hood, the spaces between the side walls of .the hood. and the end walls ot the opening constituting straight unobstructed air passage .having with said opening, ot' a hood forming par- 40 alle] side walls and open ends arranged above the opening and having its walls secured to the root in spaced relation to the sides of the opening, walls extending from the ends of the opening to the hood, the

spaces between the side walls of the hood and the end walls ot the opening constituting straight unobstructed air passages having communication with the Hue between said end walls said end walls constitutinf` 50 batiies, and intermediate baiies arranged on each side of said opening between said end walls.

In witness whereof, we have hereunto subscribed our names, each in the presence of two witnesses.

RALPH T. SENTER. LOUIS A. KLINGr.`

lVitnesses Jos. H. KLEIN, WM. A. BARR.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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