US2607941A - Self-cleaning push brush - Google Patents

Description

Au 26, 1952 D. T. PRICE SELF-CLEANING PUSH BRUSH Filed Jan. 25, 1949 I an BEE I INVENTOR D0769] T rz'ce A'ITDRN EYS Patented Aug. 26, 1952 UNITED STATES 1 I v 2,607,941 r SELE-CLEANING PUSHBKUSH Dorsey '1; Price, Knoxville, Iowa H g A lication January 25, 1949,, seriaine; 12,593,

acr -me (o1.-15--1e0) My. present invention relatesto the general class of brushes and brooms, and more specifically to an improved .self cleaning pushflbrush or broom of the long handle type that is adapted for sweeping or brushing domestic floors, and especially designed for use in brushing or sweeping floors of public buildings or other places having large floor areas. The primary purpose of the invention is the provision of an automatically operating implement that is durable and reliable for emciency in thoroughly cleaning a floor by eliminating the usual starting and stopping dirt-spots left at the ends of the working strokes. For this purpose'the hand operated implement includes a brush mounted on the handle with the brush initially "and resiliently retained in inoperative position alined w-ith or at an obtuse angle to the handle, and by pressure of the working stroke of the handle the floorsupported brush is automatically tilted or swun backwardly to a working position at a more acute angle to the axial line of the handle, to push the dirt forwardly. At the end of the sweeping stroke the resiliently and pressure-retained brush is automatically snapped forwardly to initial position thereby flipping and advancing the sweepings over the unswept portion of a floor for another sweeping stroke of the brush. v

The implement includes a minimum number of parts that may with facility be manufactured at low cost of production, and the parts may be assembled with convenience to assure a smooth working and easily operated brush that is simple in construction and operation. The invention consists in certain novel features of construction and combinations and arrangements of parts as will hereinafter be described and more particularly set forth in the appended claims.

In the accompanying drawings I have illustrated a complete example of a physical embodiment of my invention in which the parts are combined and. arranged in accord with one mode I have thus far devised for the practical application of the principles of the invention.

Figure 1 is a view in side elevation of the brush in working position, and showing by dotted lines the brush in snapped or ejecting position.

Figure 2 is a rear view of the brush with the handle broken away for convenience of illustration.

Figure 3 is a front view similar to Fig. 2.

Figure 4 is a view showing the brush at the end of its snapped or ejecting position.

Figure 5 is a top plan view of the head of the brush; and

Figure 6' enlarge, Cpersiiec vfe, view of ii; spring-supporting. collar det'aohe the rus f The brush B and handle H T are fashioned, in onventional. size. and jshan gandl, 'gbriishhead], Whichmay hoof we dior o'th ,1 materialisleguippedf" t base plate]. prefera the prov/moi the; head the head asbvscrews .3 The base plateis provided andspaced attaching 'r or f 4, disposed toward .thelfmnto with a parallel pair of perforated earsi ing bosses. 5., 5 disposedtoward.the iback of' the head of the brush. Thesepairs of eenage .ments are spaced parallel with the, lon itudinal axis of thehead, and themembers of eachLnair are located laterally ofthe; "andle, rgitsjlongitudinal axis. 5 I .1

The handle H is coupled'tothe front bearings 1 4, 4 by means of a socket-sleeve 6 of metal or other suitable metal, fitted on its lower or front end, and the sleeve, which is fixed by a screw 1 to the handle, is provided with a forwardly projecting flangev 8 that terminates in a perforated bearing boss or ear 9. The bearing boss 9 is fitted between the two ears 4, 4, and a pivot bolt [0 passed through the ears and the boss, retains these parts in pivotal relation with the brush in initial non-working position as shown by dotted lines in Fig. l.

In this non-working, or rather non-brushing position of the brush, the implement may be employed for sweeping strokes as with the manipulation of a broom; but for brushing strokes across a floor, the brush is held at a more acute angle to the axial line of the handle, by forward pressure on the handle on the working stroke of the brush, as the latter is pushed along the floor.

For coaction with this pushing or pressure action on the brushing stroke, resilient means are provided to impart a snapping action to the brush, at the end of the stroke, for ejecting dust and dirt therefrom, and for pushing the collected sweepings forwardly over the unswept or unbrushed floor. I

The resiliently operated device is mounted by means of a split resilient clamping collar or band I I that is clamped on the handle above the sleeve 6 by means of outstanding flanges l2 that are perforated to receive the clamping bolt I3 that is secured by nut I4. The collar is fashioned with a rearwardly extended and perforated flange I5 to receive an eye-bolt l6 having an upper head l1 and which is arranged at the rear of the handle with its eye fitted between the two cars 5, 5, and coupled thereto by a pivot bolt I8.

A compression spring l9, coiled about the bolt, 7

is interposed between the flange l5 and a washer 20 mounted on the eyebolt just above its eye.

By this arrangement of parts the handle and the brush are pivoted at ID in front of the longitudinal axial line of the brush head, and at l8,

at the rear-of this axial line, and the pivotylfl has a resilient anchorageon the handle. Thus, pressure against the front pivot, against the floor supported brush tends to swing the brush under and backward against tension of thespring, and

' when, at the end of a brushing stroke, this pres sure is released, the compressed spring expands and swings the brush, with a summing forwardly and upwardlyto dotted position of Fig. 1, for forwardly ejecting the collected sweepings or brushings. 9

When pressure through the handle. is released at the endiof each brushing stroke, pressure is again applied to the handle for initiating the next brushing stroke.

in front of its longitudinlaxial line and a complementary pair of spaced bearings at the rear of said line in opposed relation to the said first bearings, of a handle, a sleeve rigid with the handle, an integral bearing on the sleeve below the The same action of thebrush is accomplished and the same results are attained when the implement is used in manner similar to operating a broom; and as the implement isoscillateol on its forward swingthelfloor supported brush is swung on its pivot, and then at thelend of the sweeping stroke,- by resilient, actionfof the brushing the sweepings'are ejected forwardly,

7 Having thus fully described my invention, what I claim as new andfdesire to secure'by Letters Patent is: I

' 1. In a self cleaningpushing brush, the combination with a handle and a brush head, of a socket-sleeve rigid with, the handle and means for pivotally connecting the sleeve with the front portion of the brush head, a clamp collar rigid with the handle and an eyebolt slida'bly attached lower end of the handle fitted between the front bearings and a pivotal bolt uniting these bearings, a collar clamped on the handle above the sleeve and a perforated flange integral with the collar, a headed eyebolt mounted in the flange, a pivotal bolt uniting the eyebolt with the complementary spaced rear bearings, a washer .on eyebolt the adjacent the pivotedbolt, and a compression spring coiled about the eyebolt and interposed between said, washer and the flange of thefcollar. j

DORSEY T. PRICE.

E ERENeEsfCrrEp The following referencesare of record in the file of this patent:

UNITED STATES PATENTS Number Name a Date 634,617 Hansen 1 Oct. 10, 1899 1,224,724 Dyer -May 1, 1917 1,303,439 Wilson May 13, 1919 1,674,983 Morton June 26, 1928 1,943,479 Hesson Jan. 16, 1934 1,994,677 Wildhaber Mar. 19, 1935 2,286,655 S'upnick June 16, 1942 2,442,684 Greene June 1, 1948

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