US1052812A - Combined ventilator and screen for windows. - Google Patents

Description

T. H. GARLAND.

COMBINED VENTILATOR AND SCREEN FOR WINDOWS.

APPLICATION FILED JAN. 19, 1912. u 1952912, Patented 11811111913.

2 SHEETSSEEET 1.

T. H. GARLAND.

COMBINED VENTILATOR AND SCREEN FOR WINDOWS.

APPLIUATION FILED JAN. 19. 1912.

Patented. Feb. 11, 1913.

2. SHEET S-SHBET 2.

l ITE alf STATES PATENT FFICE.

THOMAS H. GARLAND, F CHICAGO, ILLINOIS.

COMBINEDy VENTILATOR AND SCBIEEN FOR WINDOWS.

Specification of Letters Patent.

Patenmarca 11,1913.

Application led January-19, 1912. Serial No. 672,166.

' To all 'whom it may concern:

Be it known that I, THOMAS I-I. GARLAND, residing at Chicago, in the county of Cook and State of Illlnois, have invented certain new and useful Improvements in Comrailway coaches and buildings of all kinds.

Among the important objects of my invention are to provide a combined ventilator and screen device which can be inserted between a window and lts s1ll and whlch can be adjusted to control the air flow in either direction through the window opening and which can be adjusted to control the effective area of said opening or to entirely close the opening; to provide a construction which will substantially prevent the entrance with air of heavier particles, such as smoke, soot, dust or cinders, yet which will allow the clean air to enter; to provide a construction in which adjustment for air' How can be readily accomplished by the occupants of seats adjacent the structure; to provide a construction which will adapt the combined window ventilator and screen devices to be used efficiently in connection with main ventilator mechanisms for railway coaches and buildings to more eiiiciently control the ventilation; and 'in general to provide, a more desirable and more eiicient device of the class referred to.

In the drawings, which illustrate the various features of my invention, Figure l is a top View of a ventilator and screen, part of the top wall of one of the sections being broken away, Fig. 2 is a view of the inner side of the device, part of the front wall of one of the sections being broken away, Fig. 3 is a fragmentary perspective view, showing particularly the adjusting arrangement for the air directing elements, Fig. 4 is a perspective view, showing the device applied to the window of a railway coach or building, Fig. 5 is ,an enlarged sectional view taken on plane 5 5, Fig. 2, and Fig.

,6 is an enlarged sectional view taken on plane 6-6, Fig. 2.

The device may comprise a single section A of suiicient length to extend ventirely across the window to be fitted, or the device may comprise a plurality of such sections A which are preferably hinged together, so

that they can be easily adjusted to the window and when not in use may be folded together. The particular device of the drawings comprises two sections A hinged together at 10, as best indicated in Figs. 1 and 60 2. The various sections are identical in construction, and each comprises a supporting sash 11 which may be of wood or which Vmay be formed up of sheet metal, the height of the sashes and the combined length thereof where a number of sections are used being such that the device will fit between the sides of ,the window frame and between the open window and the sill. Inserted in each sash is a frame 12 preferably of sheet 70.

metal, whose outer edge section is deflected outwardly at right angles to form a Hange 13 for engaging against the outer side yof the sash. The opening surrounded by the flange 13 is preferably covered by grill- 75 work 14 of metal bars, and this grill is secured at its edge as by screws 15, and in common with the flange 13, to the sash. The inner edge sections of the frame 12 are deflected inwardly at right angles to form a flange 16, to which is secured a frame 1.7 shown as of U-crosssection rfor receiving the edges of a screen panel 18. This screen panel may be of woven wire, but is preferably of perforated sheet metal which can be more readily cleaned and which is also of greater strength and will retain its Yshape better than the woven wire. The horizont-alg, depth of the frame 12 is preferably such that the screen 18 will not vextend beyond the 90 plane of the outer faces F of the window frame.

Between the grill and the screen is a row of vanes or louvers 19, each having upper and lower pivot ends 2O and 20 whereby 95 they are pivoted to the upper and lower walls of the frame 12. The vanes or louvers are preferably of sheet metal, but can be made of any suitable material. Each louver has pivotal engagement at its upper inner corner with a connecting and adjusting bar 22. As shown, a vertical pin 23 extends up-l wardly from the upper inner corner of each louver and pivots in the opening 23 through one of the lugs 24 extending inwardly from 105 the bar 22, these openings having the same horizontal sp acing as the vanes or louvers, so that the vanes or louvers will at all times be parallel. Upon moving the bar longitudinally the louvers may be simultaneously adjusted to various angles, and may also:V be moved into acommon vertical plane to .substantially cut off all flow of.- air through the device. In order to more readily adjust the louvers and to lock them in adjusted position an 'adjusting lever 25 is provided. b ecu'redto the top wall of t-he frame 12 is a U-shaped bearing block 27 whose limbs have openings for receiving a pivot screw 28 adapted to thread securely in the lower opening, these openings `being in vertical registration with the pivot line of one of the louvers, preferably the center one. The rear end of' the lever 25 engages in the U-frame and receivesthe pivot screw 28, so that the lever' ycany be swung in a horizontal plane overthe top wall of the device. At an intermediate point the lever has a hole 29 through which extends the screw 30 having the knurled head 31. At its lower end the screw is adapted to thread through the bar 22, and a slot 32 concentric with the pivot screw 27 is provided in the top wall of the frame 12 so. that as the lever 25. is swung the screw 3G-will pass through the slot, and the bar 22v will moveto cause simultaneous rotation of the louvers to which it is pivoted. The lever 25 has also a lug 33 for engaging the top of the frame 12, and through this lug the screw 30 passes. When the lever has been moved to accomplish the desired adjustment the head 31 is turned in the direction to cause the bar to be thrown upwardly into clamping engagement with the top wall of the frame 12 and to cause the lug 33 on lever 25 to be clamped securely against the top wall of the frame, the parts being thus locked in adjusted position. If it is desired to move the lever into another 40 position the vhead 31 is turned in the opposite direction'to release the lever andthe barwhereupon the desired adjustment can be made, and the lever and bar again locked.

A quarter-round moldingll preferably sur- 45 rounds the frame 12 and is secured against sthe inner face of the sash, the molding being recessed-at 35 to accommodate the bearing block2b,v andother vrecesses 36 and 37 are also provided to accommodate the head 31 of the adjusting screw when the lever reaches the ends-of the slot 32,. c

Referring particularly to Figs. 1 and 4', assume that the structure is'applied to a railway coach, and-that the coach is traveling toward the left. The vanes or lou-vers when set as shown in the advanceA section will scoop up; the-air entering through the grillwork and '/willffdeflect ity into the car, whilethe vanes 'if-set; as shown in the' rear section,

' will tend to deflect outwardly vtheairwhich strikes them and particularly to deflect outwardly the more solid particles, such as' smoke and cinders, and these vanes will also tend to cause air flow from the interior of the car to the exterior. The vanes and loudesired How of air through the open window, and adjustment is readily made by the occupants of the seats. In the present method of inserting a common screen `in the window opening, no adjustment could be made, and if no air flow'was desired through the window opening the screen had ltobe removed. My device can remain per- ,manently in the window opening, and the linlet or outlet area can be varied at will or entire closure eected. v

' In railway coaches, particularly in Pullman cars, Ventilating mecha isms are provided for causing circulation of, fresh air through the coach, and my improved device herein can be used very efficiently lfor inlets for fresh air in conjunction with such ventilating mechanism. In the present system,

=where ordinary screens are used, if all the EWindows are closed the ventilator mechainism cannot operate properly, as the coach @would be entirely closed, but where my devices are used, even though the louversof all the devices are in closed position, the iit Lis not so tight but that under pressureor suction there would be passageway therethrough, and although there would not be ,direct drafts through the window ventilat- 'ing devices, there would. be sufficient passageway to allow the main ventilator mechanisms of the coach to draw in air between 'the louvers and their containing frames.

The present ordinary screens do not prevent the entrance of smoke, soot or small cinders, but here my improved devices are installed it is very diiicult for. smoke, soot or cindcrs or dust to enter. The smoke and dust-laden air will first strike the grill-work 14, and a great many of the solid particles will be deflected away. Thelouvers will act as baliie plates for the remaining particles and will tend to check their flying and cause them to drop to the bottom of the frame l2, from where they can be carried to the outside. The screen 17 will-strain out the remaining particles fromthe inijlowing air, so that practically fresh air will enter at all times into the coach. The lower inturned flange 16va to which-the screen frame 17 is secured, performs an important function, as' it prevents entrance through the screen of particles which are deflected to the bottom of the frame 12 by thelouvers. The

- outlowing air currents will pick up the particles and, c'arry them outthrough the grill- Work. l

My improved device can of course be utirio lized with equal efficiency in any opening.

Railway coaches usually have double windows, and my improved deviceV can be inserted with its sash between the sill and the sash of either window. I do not desire to belimited to the precise construction and arrangement herein shown, as modiiications,

; trolling the iow therethrough, said flange preventing entrance through the inner end' of saidy frame of particles deflected to the bottom of said frame by said louvers.

2. In a device of the class described, the

.combination of a sash adapted to be insert-- ed in an opening through which ventilation is desired to be'accomplished, a' rectangular sheet `metal frame lining said sash, a screen secured to the inner edge of said frame, grill-work 4secured to the outer edge of said frame, vertical louvers in a horizontal rowl within said frame and pivoted inthe upper and lower walls thereof, a connecting rod disposed below theupper wall of said frame and having pivoted connection with the adjacent upper corners rof said louvers, `the upper wall of said frame having a segmental slot, a `stud extending through said slot and having screw threaded engagement with said connect-ing rod whereby said rod may @be moved to simultaneously adjust the lou- `vers and whereby said rod may be clamped justment thereof.

3. In a device of the class described, the

combination of a'sash adapted to be inserted in an opening through -which ventilation is d' desired to be accomplished, a' rectangular sheet metal frame lining said sash, a screen secured to the inner edge of said frame, ill-work secured to the outer edge of said rame, vertical louvers in al horizontal row within said frame and pivoted in the upper and lower walls thereof, a connecting rod disposed below the upper wall of said r and having pivoted connection with the adjacent upper corners of said louvers, the upper wall of said frame having a segmental slot, a stud extending through said slot and having screw threaded engagement with said connecting rod, an adjusting lever piv oted concentric with the upper pivot of one of said louvers and hav-ing an opening for receiving said stud, swing of said lever causv ing movement .of vconnecting rod to simultaneously adjust-'said louvers and turning of said stud causing said rod, said lever and said top wall to be clamped together.

In witness whereof, I hereunto subscribe my name this 15th day of January, A. D.

THOMAS Hl GARLAND.

Witnesses NELLIE B. DEARBORN, J. M. LU'rzs

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