US2043775A - Window wiper - Google Patents

Description

Patented June 9, 1936 1 UNITED. STATES PATENT OFFICE.

wmnow wlrnn Jacob J. Bosen, Brooklyn, N. Y. Application June 21,1935, Serial No. 21,123

z Clam (01. 15-245) An object of my invention is to provide a simple and emcient window wiper, commonly known as a squeegee, which requires only one strip of gum rubber.

Another object is to provide a device that is quickly and easily inverted when one corner of the rubber blade becomes worn or' damaged.

Another object is to provide a device wherein the four corners of one strip of rubber may be in used, one pair of comers being protected from possible damage by contact. with sharp edges. The above and further objects will become obvious to those skilled in the art in the disclosure herein given. I.- In the drawing, wherein like reference characters indicate like parts;

Fig. l is a perspective view'of my improved squeegee;

Fig. 2 is a transverse section taken on the line 20 2-2 of Fig. 1; and a Fig. 3 is a section similar to Fig. 2, in which the squeegee is shown inverted.

Referring to the drawing. the squeegee consists of a head I. which is made up of two metal 2 strips i2 and ll of any suitable length between which is clamped a rubber blade IS, the blade being longer and protruding slightly beyond both ends of the metal frames l2 and M. The metal strips and the rubber blade are held together 30 firmly by bolts l8 and beveled nuts 2|. The nuts 2| are so beveled as to make a snug fit and prevent any possible contact and scratching to the surface cleaned when the squeegee is passed over it. A tapered handle 22, bent at approximately 35 45 tothe horizontal, is mounted over one of the metal strips and held firmly in place by two bolts 24 such as shown in Fig. l.

The metal clamping strips l2 and It are of different widths, and theclamping surface 22a of the handle 22 is slightly wider than either of the clamping strips. when assembled, as shown more clearly in.Fig. 2, the rear edges of the clamping strips l2 and M are parallel, protruding slightly beyond one side of the rubber blade, thereby protecting those corners of the blade from possible damage. as when the squeegee is resting and suspended across the rim of'a pail. The front edge of clamping strip It extends slightly beyond the front edge of strip l2, and

the front edge of the handle clamping plate 22a extends slightly beyond that of strip ll. Thus, when assembled, bolts 24 holes slightly in from the metal clamping strips and handle clamping plate and through adjacent holes equidistant from the pass through spaced front edges of the side edges of the rubber blade. This arrangement affords the most suitable resiliency in which ounrly a slight pressure is required in wiping a glass s ace.

If more pressure is applied, the front edge of 5 22a will serve as a stop and a firm backing. as illustrated in dotted lines in Fig. 2.

when the corner 26 of blade It, which will be the working corner as shown in the arrangement of Fig. 2, has become wom' or scratched,

a new corner may be put into effect by simply removing the two bolts 24, disengaging the head Ill from the handle clamping plate 22a. and inverting head ill so that the comer 20 will be on the lower side and become the working corner, as

illustrated in Fig. 3. when the corner 28 becomes worn, the entire rubber blade I6 is disengaged from metal strips I2 and it by removing bolts l8 and 24, and the blade It turned around so that when assembled again, the corners 30 and 32 will be at the front and afford two new corners ready for use.

It is thus apparent that the life of a blade is 1 prolonged, making it eiiicient and economical to operate.

It is obvious that minor changes of construction may be made without departing from the scope of the claims.

Having thus described my invention, what I claim as new is: 4

1. A window wip p ing an elonflt rectangular strip of flexible rubber of rectangular cross-section so as to have two wiping corners along each side edge, the strip having a plurality of holes disposed midway between the edges, two 35 elongated clamping plates having holes to regis ter with the holes in the strip, the clamping plates being narrower than the strip and having the holes therein nearer one edge than the other so that one longitudinal edge of the strip may pro- 4 iect beyond the plates for engagement with'the window pane and the other longitudinal edge may be within and protected by the plates, a handle having an attaching plate overlying one of the clamping plates, and bolts passing through th strip and plates for clamping them together, the parts being capableof assembly with the strip in four positions relative to the handle so that any one of the four wiping corners may be eflectively 5o applied to a window p 2. A window wiper as claimed in claim 1, where- .in the strip has ends projecting beyond the ends of the plates.

' JACOB J.

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