US2177149A - Floor brush - Google Patents

Description

W. C. OTTO FLOOR BRUSH Oct. 24,-1939.

Filed March 14, 1938 R E V m W/zu/w 6. 0770. O /5km Zumzgr w A TTORNEY-i Patented Oct. 24, 1939 UNITED STATES PATENT OFFICE FLOOR BRUSH Application March 14,

5 Claims.

This invention relates to a reversible floor brush.

The chief object of this invention is to provide a brush of the aforesaid character which is so 5 constructed that the same length bristles can be employed throughout and the bristles project laterally at the ends of the brush and engage the surface to be swept substantially from one I end to the other of the brushing bristle area as 70 distinguished from a brush wherein the end bristles, if of equal length as the main bristles, and if inclined so as to project outwardly beyond the brush body ends, leave a gap at the ends of the brush between the bristle ends'and the surface to be swept. Stated in. another way, the object of the invention is to provide a brush, the sweeping area of which is greater than that obtained, for example, with an 18" length standard brush, and. the invention then is of 16" body character, as will be more fully explained hereinafter.

The chief feature of the invention consists in constructing a brush of the character set forth, whereby the aforesaid object is accomplished.

Another object of the invention is to provide the brush with an adaptor at each end that in addition to functioning to accomplish the aforesaid object has the further function of constituting a bumper or guard arrangement.

Another chief object of the invention is to provide a brush of reversible character with suitable reenforcing means, whereby the handle to block or body connection is suitably reenforced and which reenforcement is extended to serve as a scraper, permitting the brush to be used for scraping from the surface to be brushed, objects that adhere thereto and which normally are not removable by merely brushing the surface.

Other objects and features will be more fully pointed out hereinafter.

The full nature of the invention will be understood from the accompanying drawing and the following description and claims.

In the drawing Fig.1 illustrates in front elevation a reversible brush embodying the invention.

Fig. 2 is a transverse sectional View taken on line 2-2 of Fig. l and in the direction of the arrows.

Fig. 3 is a top plan view of a modified form of brush body and the bristle supporting portion thereof and is taken in a plane corresponding to the plane indicated by the arrows and the letters AA in Fig. 1 and in the direction of said arrows.

1938, Serial No. 195,758

Figs. 1 and 2 illustrate a brush wherein all the bristles are of the same length and the bristles are arranged in tufts and each is associated with a socket and is cemented or otherwise suitably secured in the socket. The form of the brush 5 shown in Fig. 3 is of the wire anchor type where the bristles are of substantially the same length but are doubled and bent back upon themselves, the midportion thereof at the bend being drawn with the retaining socket by wire means and the wires passing from one socket or recess to another, as illustrated in said figure. The invention, as stated, may be applied to brushes, the bristles of which are secured to the brush body or block in either of these two standard methods of anchorage.

In Figs. 1 and 2 of the drawing, It] indicates the main body portion of a reversible brush, H the top portion thereof, the two portions being suitably secured together at spaced intervals by means of the centrally and longitudinally aligned bolts l2 and nuts. The brush back-and by back it is intended to include the body portion l0 and the top Il--is enlarged as at l3. This enlarged portion is for strengthening purposes.

Midway between the ends of the brush back and oppositely and inwardly directed, are the two threaded openings l4, each of which is adapted to receive the threaded end l5 of an elongated handle IS. The openings [4 are extended as at I1 into the brush body portion ID. The two threaded portions l4ll communicate with each other as at 18.

It will be recognized that in spite of the enlarged portion l3 that the brush back at the anchoring portion is relatively weak, due to the dual openings provided. Accordingly, there is provided a reenforcing member in the form of the elongated plate l9 having an elongated opening l9a of somewhat elliptical character. This plate is seated in a recessed or routed out portion 20 in the upper face of the body portion ID. The two adjacent bolts l2 extend through openings 2| in the plate which register with the registering openings provided in the body portion and the top and which receive the bolts. Thus the reenforcing plate is rigidly secured to the brush.

As shown clearly in Figs. 1 and 2, the plate extends slightly beyond the enlarged portion of the brush body as at 22 and is further extended as at 23 downwardly and outwardly. This arrangement is duplicated on opposite sides of the metal plate, it being understood the brush back is of non-metallic character and usually the same of wood.

It will be apparent that whenever debris on a surface to be cleaned cannot be brushed therefrom, the brush may be inverted so that the former front face lies approximately parallel to the surface to be swept and this then permits the edge 24' of the reenforcing plate to engage the surface to be cleaned for the scraping removal of the debris that adheres to said surface with a force greater than that permitting brush removal. Since the brush is of reversible character, the reenforcement and. scraper arrangement is duplicated at the front and back of the brush, if such a reversible brush can be said to have a front and back and the plate device extension arrangement will serve as a scraper no matter which threaded opening is occupied by the handle.

The reversible character of the brush is well known because the bristles through use take a somewhat different set and certain bristles wear, thus the brushing faceof thebrush has localized wear. Providing the second opening permits of brush reversal and in effect doubles the life of the brush, as is well understood in the art.

As shown clearly in Fig. l, the brush body is recessed as at 3a which is its outer lower portion and there is provided an insert 3i, preferably of hard rubber, and the same is suitably secured v pitch setting. a

32 having their heads nested or countersunk as at 33 in theupper face lila of the brush body H3, The bolts 32 secure the insert 3! to the brush body by means of the nuts 3t seated in recesses 35. The adaptor 3! is enlarged laterally and projects beyond the end of the'brush and at clearly in Figs. 1 and 2. This projecting portion,

as it were, is of relatively soft material compared to wood, such as rubber and constitutes a bumper or guard arrangement.

In the type of bristle mounting illustrated in Figs. 1 and 2, it will be noted that the brush body is provided with recesses to and the groups of bristles indicated by the numeral 4! are arranged in tuft formation and are received by the sockets 40, and are suitably cemented therein as at 42. All of these bristles are of substantially the same length.

This type of mounting is commonly termed That illustrated in Fig. .3 m termed wire drawing.

The advantage of using the former is that the free ends of the bristles are broken or split and this is the flag effect so highly desired.

One economic advantage of the invention now to be described, is that bristles of 3%" to 4 are relatively cheaper than bristles of 5", 6", or 7 in length in proportion to such length.

The adaptor 3'! in Fig. 1 is shown provided with sockets 43 which receive tufts of bristles 44, the'sarne being cementitiously or adhesively secured in said sockets as at $5. However, the sockets 63' are inclined in two directions outwardly for the tufts therein to project beyond the end of the brush and outwardly so as to project beyond the sides of the brush. The lower face of the adaptor 3| is inclined downwardly as at 25 for a purpose to be mentioned and if de sired, a portion thereof is inclined upwardly as at G1.

The effect of the aforesaid is that the end bristle tufts which are of substantially the same length as the main portion of bristle tufts of the brush, will be'so positioned that the ends engage the surface to be swept at a point a considerable distance remote from the end of the brush. This is because the unit length bristles of the tufts are progressively lowered with reference to the lower plane of the brush body indicated by Nib. It will be quite apparentsee Fig. l, the dotted line BB-that if the adaptor were not provided and the sockets were inclined in a corresponding manner as the same are formed in said adaptor, the ends of the bristles would terminate along the line 313 and in that event the length of the sweeping area of the brush would be materially less than that herein illustrated. In Fig. 3 there is illustrated a modified form of the invention and herein of the wire tied type. Numerals of the one hundred series, similar to numerals of the primary series, employed in Figs. 1 and 2, designate like or equivalent parts.

The brush body is indicated by the numeral liil. It has the upper face Mile. The same includes the enlarged portion H3 intermediate its ends and this enlarged portion is provided with two oppositely inclined threaded openings II! for selective handle reception, said openings communicatingor merging with each other as at H8. The body portion herein is so provided with bores 26% which receive the bristle tufts [4i and these are united together by wire means and the wire passes from bore to bore as indicated at Hi2. This disclosure represents the other standard form of bristle brush construction. Herein the body'portion intermediate its ends is channeled or recessed as at l20 for reenforcing and scraper plate reception, the holes l E20, being adapted to receive the bolts comparable to the bolts 52 immediately adjacent the bores 64 as shown in Fig. 1. Either form of bristle mounted construction may be utilized.

If desired, see Fig. 1, in place of the relatively detachable mounting for the adaptor 3i, there maybe provided rivets or other suitable anchoring means.

Whenever it is desired to reenforce the handle anchoring portion of the brush back, the brush back need not be parted as indicated at Na, in which event. the, bolts employed. When this type of an arrangement is provided, then the bolts 32 extend from the top surface Nb of the brush back through the brush back and into the adaptor 3!.

While the invention has been illustrated and described in great detail in the drawing and foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modifications described herein as well as others which will readily suggest themselves to persons skilled in this art, all are considered to be within the broad scope of the invention, reference being had to the appended claims.

' The invention claimed is:

1. In a brush, the combination of a multi-layer brush back, including a pair of oppositely inclined and merging apertures therein for selective reception of the handle and a plate secured between the layers of the back and having an elongated aperture registering with both back apertures.

2. A brush including a back having a substantially flat face and a plurality of bristle tufts, the bristles of each tuft being of substantially the same length and the tufts being of substantially the same length, and means at the end of the brush and secured to theback forming a face directed angularly to the back face for flaring l2 and nuts. are not the unit length tufts supported thereby into coplanar position, said tufts being supported by said means and said back.

3. A brush as defined by claim 2, characterized by the means projecting outwardly at the end and at opposite sides adjacent the end of the back and of cushion material for guard purposes.

4. A brush including a multiple layer back I structure, a handle secured to the upper portion thereof, a back reenforcing member secured to I the back and between the last mentioned layers and having a conformation conforming to the back structure handle mounting portion adjacent the handle anchorage for reenforcement thereof, and a plurality of bristle tufts suitably secured to the back structure and of equal length, the end tufts having an outwardly and inclined relationship and secured. to the back structure in progressively offset relationship for bristle end coplanar relationship substantially as described.

5. A brush including a multiple layer back structure, a handle secured to the upper portion thereof, a back reenforcing member secured to the back and between the last mentioned layers and having a conformation conforming to the back structure handle mounting portion adjacent the handle anchorage for reenforcement thereof, and a plurality of bristle tufts suitably secured to the back structure and of equal length, the end tufts having an outwardly and inclined relationship and secured to the back structure in progressively offset relationship for bristle end coplanar relationship substantially as described, the back structure including at the end a projecting cushion portion for guard purposes.

WILLIAM C. OTTO.

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