US1350792A - Window-ventilator - Google Patents

Description

J DIXON WINDOW VENTILATOR.

"EPLICATION FILED MAY3|19Z05 1,350,792 Patented Aug. 24, 1920.

UNITED STATES JOHN DIXON, on GARY, INDIANA.

WINDOW-VENTILATOR.

Application filed May 3, 1920.

To all whom it may concern:

' Be it known that I, JOHN DIXON, a citizen of the United States, residing at Gary, in the county of Lake and State of Indiana, have invented certain new and useful Improvements in VVindow-Ventilators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the SELIDQ.

This invention relates to an improved ventilator which is especially designed for use in car windows, although it may be just as effectively used in any other type of window.

The main object of the invention is to provide a ventilator which is of such construction that a steady current of air will be supplied through it to the interior of the car or other place to be ventilated without creating a direct draft.

Another object of the invention is to provide a ventilator which has means for readily and easily securing it in position in the window; one .of which has means for regulating the amount of air passing therethrough; and one which is provided with means for preventing the passage of insects, dirt, and cinders through it.

A further object of the invention is to provide a ventilator which is practically self-cleaning, due to its peculiar shape which, causes a suction to be created within it, thereby forcing or drawing the majority of particles of dirt and cinders from it when the car is in motion.

Other objects and advantages of the in vention will be apparent during the course of the following description.

In the accompanying drawings forming a 'part of this specification andin which like numerals are employed to designate like parts throughout the same:

Figure l is a perspective view of a portion of the interior of a railway car or the like, showing my ventilator in use.

Fig. 2 is a transverse sectional view taken on the plane of the line 22 of Fig. 1.

Fig. 3 is a central longitudinal sectional view taken on the plane of the line 33 of Fig. 2.

In carrying out my invention I employ a box-like member 1 which is preferably made of a sheet of metal. This sheet of material is bent to provide a relatively wide top Specification of Letters Patent.

Patented Aug. 24, 1920.

Serial No. 378,486.

wall 2 which is adapted for horizontal dis position, and a comparatively narrow bot tom wall 3, and an outwardly and downwardly inclined side wall i. A pair of end walls 5 complete the box. The opposite ends of the sheet of material are bent laterally and inwardly toward each other to provide hooks which engage the hooks carried by the end walls, thus retaining these parts together. The side opposite the wall a of the box is entirely open to permit air to pass into the interior of the box from the outside. Air escapes from the ventilator box through outlet openings 6 which are formed in a top wall 2. Inasmuch as it is not always desirable to permit free passage of the air through the ventilator box intothe interior of the car, I provide means to control the amount of air passing through the box. To this end, I make use of a slide 17 which is provided with a plurality of openings 8 wnich register with the outlet openings 6. This slide is mounted for movement in guides 9 which are suitably secured to the underface of the top wall 2. Movement of the slide will be accomplished by employment of a knob or handle 10. To prevent the entrance of insects, particles of dirt, and cinders, I employ a screen 11, which I secure to the guides 9 in the manner shown. This screen spans the openings 6 and 8 and prevents the passage of particles of dirt and insects through these openings. I desire to emphasize the fact, that placing the screen at this particular point will be found extremely advantageous, in that it will prevent dirt from settling between the slide 7 and the track 9, which might otherwise prevent the slide from being actuated easily and readily. A simple and effective means is employed to retain the box in position in the window, this means consisting of hooks 12 which are pivotally connected to the end pieces 5 of the box, the hooked ends thereof being de signed to engage suitable headed members 14 driven in the window frame.

A. ventilator constructed in accordance with my invention will be found to be extremely eflicient, in that, it will not permit a direct draft to blow on the passengers in the car, this being due to the horizontal disposition of the top of the boX which causes the air to flow vertically instead of horizontally as it ordinarily does. Insects, and extraneous particles of dirt and the like will be prevented from gaining entrance to the interior of the car. By inclining the side wall of the box, particles of dirt which gain entrance to the box, will strike it and will be deflected downwardly and settle on the bottom of the box. When the car is in mo tion, the air will create a suction or current Within the interior of the box which will force the particles of dirt" out through the open side of the box. In this respect the .box is self-cleaning.

As before stated, the screen also serves another function, that is, it prevents settlement of grit and dirt on the guide-tracks 9 which would otherwise prevent easy movement of the slide. The construction is strong, durable, and inexpensive and is effective in every way.

desire it to be understood that the ventilator box will be made in various lengths to fit windows of various widths.

myinvention herein shown and described is tobe taken as a preferred form of the same and that various changes 1n the shape, size,

and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

I claim:

A window ventilator comprising an elongated-open-sided box composed of a single sheet of metal bent to form a rela tively wide top wall, an outwardly and downwardly inclined side wall and a relatively narrow bottom wall, the latter being disposed in parallelism with the top wall the opposite ends of said sheet being bent laterally and inwardly toward each other to fornrcontinuous hooks; end walls for said box made of metal plates, each having three of its edges bent to form like hooks for engagement with the first named hooks, said top wall being provided with a plurality of outlet openings to communicate with theinterior of the place to be ventilated, ledges secured to the underside of the top wall adjacent to and on opposite sides of the outlet openings, a slide movable in said ledges, being provided with openings to register with the outlet openings, a screen securedto the under faces of the ledges and spanning the aforesaid openings in the slide and top wall, and pivotally mounted hooks carried by the box to retain it in position in a window.

In testimony whereof I have'hereunt-o set my hand.

JOHN DIXON.

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