US724534A - Window-cleaning device. - Google Patents

Description

EATENTED APE.v 7, 1903.

E EBAYEE.

WINDOW CLEANING DEVICE.

APPLIOATION FILED APR. 17. 1902.

2 SHEETS-SHEET 1.

N0 MODEL'.

fiez/@212th Tz Nonms Pzrzas co.. 'wqiu'mm WASHINGTON n. c.

PATENTED APR. 7, 1903.

H. E. BAYER.

WINDOW CLEANING DEVICE.

APPLICATION FILED APR. 17, 1902.

2 SHEETS-SHEET 2.

H0 MODEL.v

UNITED-STATES PATENT Erice.

WINDOW-CLEANING DEVICE.

SPECIFICATION forming part of Letters Patent No. 724,534, datedApz-il '7, 1.903.

Application filed April 17, 1902. Serial No. 103,266. (No model.)

T0 all whom it may concern:

Beit known that I, HENRY E. BAYER, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Window- Cleaning Devices; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention"relates to 'window-cleaning devices, and more especially to devices for cleaning the windows of llocomo'dve-cabs, motorcar cabs, and the like.

The object of my invention is to provide a device whereby both the inside and the outside of the window may be cleaned ata single operation from the insidefof the locomotive or motor-car cab. l

A further object of my invention is to provide a device of this character which is easy to operate, efficient, andwhich cannot easily get out of repair.

Much difficulty is experienced in locomotive-cabs and the cabs of motor-cars during inclement or cold Weather by the deposit of snow or moisture on the outside of the cabwindows and by the condensation of moisture on the inside of the windows, thus greatly obstructing' the View of the engineer or motorman. The latter can quite easily Wipe 0E a portion of the moisture from the inside of the y window; but the outside is dicult of access, and the snow or moisture thereon causes much inconvenience'. My invention relates to a device whereby the snow, moisture, or other deposits on bothlthe inside and outside of the window can befq'uickly and thoroughly removed and without interfering with the other duties of thev engineer or inotorlnan. To this end I provideapairv of wipers or cleaners, one inside and the other outside of the window, Whichare'connected to `a single operating-handle inside of the cab, so that the engineer or motorman by grasping the same and pulling downward can wipe the moisture or snow from both surfaces of the window and then by merely releasing the handle the device will be returned to its inoperative position.

In the accompanying drawings, Figure 1 is an elevation of a window, showing my cleaner applied thereto. Fig. 2 is a side view of the same. Fig. 3 is a vertical section on the line 3 3, Fig. 1, showing the device in its inoperative position. Fig. 4 is a similar view showing the device in its operative position. Figs. 5 and 6 are respectively front and side views showing a modified form of shutter, and Fig. 7 is a detail showing adjusting means for icescrapers.

As shown in the drawings, the window sash,

frame, or casing 1 is provided on each side Y of the glass with a slot 2, and moving in these slots are a pair of bars or cross heads 3. Mounted on these cross-heads are a pair of wipers or cleaners 4 and 5, one inside and the other outside of the window. These cleaners or wipers may be of various constructions; but preferably they will comprise a cross-bar 6, having secured thereto one or more wipers 7, of rubber, felt, or other suitable yielding material. These yielding wi pers will eiectually remove snow, rain, or other moisture. To remove frost, I adda pair of Scrapers 8, of resilient metal, which preferably aremounted on the lower sides of the cross-bars 6 by screws passing through slots 9 inthe Scrapers, so that said scrapers can be moved back out 'of contact with the window, as in Fig. 3, or

into contact therewith, as shown in dotted lines in Fig. 4. The cross-bar 6 of the outer wiper is preferably ixedly secured to the cross-heads 3, while the cross-bar 6 of the inner wiper is preferably slidably mounted on said cross-bar-as, forinsta'nce, by having its ends provided with ears 10, which take over the upper and lower edges of the cross-heads. Suitable means will be provided for holding the wipers in contact with the window during the forward or down stroke of the device and away from the Window during the return or up stroke of the device. I employ for this purpose a pair of rocking arms 11, pivotally mounted on the cross-heads 3 and provided With'cam-slots 12, which engage studs or projections 13 on the ends of the inner wiper, and which extend through slots 14, formed in the cross-heads. To the outer ends of the rocking arms 11 is secu red the operating-handle 15, and the cam-slots 12 are so shaped that by merely drawing down on the operating-handle 15 and rocking the arms 11 on their pivots the inner and outer wipers'will be caused to approach each other and firmly bear against the windowglass, while by raising on IOO said handle just the reverse occurs, and the wipers are drawn away from the glass, so that in the up or return stroke they will be out of contact therewith. The device preferably is so arranged that the forward or eective stroke will be in 'a downward direction and the return or idle stroke in an upward direction. Consequently some means will preferably be provided for automatically returning' the device and holding it at the upper part of the window. Various means for this purpose may be employed; but I prefer to tix above the window in suitable brackets a shaft 17,having loose thereon a drum 18,which is connected by a tape or band 19 to the wiping device, and which drum has connected thereto one end of a spiral spring 20, the opposite end of which is rigidly secured to the shaft 17 or other stationary part, so that the drum 18 acts on the principle of an ordinary shade-roller. When the cleaning device is pulled downward, the band 19 will be unwound from the drum, thus putting the spring 20 under tension, so that as soon as the cleaning device is released this spring will wind the band on the drum and elevate the device. Hoods 21 21a conceal the device when elevated and protect the outer wiper from the weather. The cross-heads 3, moving in the slots 2, will keep the device parallel in its up and down movements; but to aid in this and absolutely prevent any binding I provide a set of lazytongs 22, the outer ends of the upper bars of which are provided with loops 23, slidably mounted on the shaft 17, while the outer ends of the lower bars are provided with similar loops 24, slidably mounted on a rod 25, secured to the inner ends of the cross-heads 3, and which rod also preferably serves as the pivot for the rocking arms 11. To this rod is also preferably secured the lower end of the band 19. The lazy-tongs 22, with the connections shown, insure an absolutely parallel up-and-down movement of the cleaners. The cross-heads 3 are made as thin as possible, so that the slots 2 will be quite narrow, and thus prevent the entrance of wind and moisture. To further aid. in this, however, I preferably close the slots by means of shutters 26, connected to the window-casing on the outside by hinges 27. The upper ends of these shutters are bent outwardly, as at 28, so that in drawing the cleaning device downward the heel of the cross-heads 3 will swing the shutters outward of the path of movement of the cleaning device. Suitable means are provided for automatically closing the shutters when the cleaning device has been returned to its uppermost position. I have shown for this purpose a bell-crank lever 29, pivoted to the casing, with one arm lying in the path of movement of the cleaning device and the other until the cleaning device is drawn down again.

binding.

The operation of the device is as follows: The spring 20, acting @on the drum 1S, normally holds the wipers in their elevated position', as shown in Fig. 1 and inV full lines in Fig. 2. When it is necessary to clean the window, the engineer or motorman will grasp the handle 15 and pull down on the same. This will rock the arms 11 to the position shown Vin dotted lines in Fig. 2 and in Fig. 4, thus causing the cam-slots 12 to bring the wipers into contact with the window, and by further drawing down on the handle the wipers will wipe both the inside and the outside surfaces of the window from top to bottom. Then by merely raising on the handle 15 the wipers are caused to recede from the window, so as to no longer be in contact therewith, as shown in Fig. 3. All friction being thus removed, the tension of the spring 20, by winding the band 19 on the drum 13, will automatically return the wipers to their elevated position. In these up and down movements the lazy-tongs, having the outer ends of both their bottom and top bars slidably secured one to the wipers and the other to the stationary part of the frame, provide for the parallel movement of the wipers and prevent My device therefore will clean both the-inside and the outside of the window by the mere act of drawing downwardly on the handle and will be automatically returned to place by slightly lifting on the same handle. The window will therefore be effectively cleaned both inside and outside, and this can be done so expeditiously as not to interfere with the other duties of the engineer or motorman.

While my device has been particularly described for the cleaning of windows of locomotive-cabs and the like, it will be understood that it is not limited thereto, but that it is equally effective for cleaning windows of any character whatsoever.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a window-cleaner, the combination of a pair of cleaners or wipers located one inside and the other outside of the Window and capable of receding therefrom, an operatinghandle, and connections between the same and the wipers whereby the latter will be held against the window during the forward stroke and away from the window during the return stroke. Y

2. In a window-cleaner, the combination with a window frame or casing having slots at the sides of the glass, of cross-heads moving in said slots, a pair of wipers or cleaners on said cross-heads one inside and the other outside of the window and capable of receding from the window, and means for holding said wipers'against the window during the forward stroke and away from the window during the return stroke.

3. In a window-cleaner, the combination with a window frame or casing having slots at the sides of the glass, of cross-heads moving IIO in said slots, a pair of wipers or cleaners on said cross-heads one inside and the other outside of the window and capable of receding from the window, an operating-handle, and connections between the same and the wipers whereby the latter will be held against the window during the forward stroke and away from the window during the return stroke.

4. In a window-cleaner, the combination.

with the windowframe or casing having slots at the sides of the glass, of cross-heads moving in said slots, a pair of cleaners or wipers on said cross-heads one inside and the other outside the window and capable of receding from the same, an operating-handle mounted on the cross-heads, and cams on said handle and engaging one of the wipers, whereby said wipers will be held against the window duringl the forward stroke and away from the window during the return stroke.

5. In a window-cleaner, the combination with a window frame or casing havingr slots at the sides of the glass, of cross-heads moving in said slots, a wiper or cleaner secured to said cross-heads outside of the window, a wiper orcleaner movably mounted on said cross-heads inside of the window and provided with pins or-studs, and an operatinghandle pivotally mounted on the inner ends of said cross-heads and provided with camslots which engage the pins or studs on the inner wiper, whereby the wipers will be held against the window du ring the forward stroke and away from the window during the return stroke.

6. In a window-cleaner, the combination of a pair of wipers or cleaners, one inside and the other outside of the window and capable of receding therefrom, an operating-handle, connections between the same andthe wipers whereby the latter will be held against the window during the forward stroke and away from the window during the return stroke, and means for automatically returning the device to its inoperative position.

7. In a window-cleaner, the combination of a pair of wipers or cleaners one inside and the other outside of the window and both capable of receding from the window, an operating-handle, connections between the same and the cleaners whereby by drawing downward on the handle the wipers will be held against the window d urin g the forward stroke, and whereby by raising on the said handle the wipers-will be moved out of contact with the window, and a spring-drum for returning the device to its elevated position.

8. In a window-cleaner, the combination of a wiper or cleaner adapted to bear against the window, lazy-ton gs having the outer ends of their upper bars slidably secured to a part fixed to the window frame or casing, and having the outer ends of their lower bars slidably secured to a part of the cleaner-frame, and an operating-handle for moving said wiper.

9. In a window-cleaner, the combination of a pair of wipers or cleaners one inside and the other outside of the window, an operatinghandle, connections between the same and the wipers for holding the same against the window during the forward stroke and away from the Window during the return stroke,

yand lazy-tongs having the outer ends of the upper bars slidably secured to a stationary part of the window-casing and the outer ends of their lower bars slidably secured to the wipers. Y

10. In a window-cleaner, the combination with a window frame or casing having slots at the sides of the glass, of cross-heads projecting through said slots, a pair of wipers or cleaners on said cross-heads one inside and the other outside of the window, means for moving said Wipers over the window, and shutters for closing said slots.

11. In a window-cleaner, the combination with the frame or casing having slots at the sides of the glass, of cross-heads moving in said slots, a pair of wipers or cleaners on said cross-heads one inside and the other outside `of the window, shutters adapted to close said slots, said shutters having curved'upper ends lying in the path of the cross-heads, and automatic means for closing said shutters.

l2. In a window-cleaner, the combination with the frame or casing having slots at the sides of the glass, of cross-heads moving in said slots, a pair of wipers or cleaners on said cross-heads one inside and the other outside of the window, shutters hinged to the casing in position to close the slots, said shutters having curved upper ends lying in the path of the cross-heads, and bell-crank levers having one arm lying in the path of vmovement -of the cross-heads and the other arm adapted to contact with the shutters.

13. In a window-cleaner, the combination of a pair of wipers or cleaners, one inside and the other outside of the window, means for moving said wipers downwardly over the window, automatic means for elevating said cleaners, and hoods on the casing and covering said wipers when elevated.

14. In a window-cleaner, the combination of suitable guides, and a cleaner moving in said guides and adapted to contact with the window, said cleaner comprising a cross-bar,

IOO

a yieldingwiper secured thereto, and a scraper HENRY E. BAYER.

Witnesses:

F. W. WINTER, ROBERT C. ToT'rEN.

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