US1812029A - Washing machine dolly - Google Patents

Description

June 30, 1931. W N 1,812,029

WASIIING MACHINE DOLLY Filed April 24. 1950 chwzzfaz' Foam/a 2 21421021 54 22am 7 i 5W 7 (J MW I Moray Patented June 30, 1931 UNITED STATES PATENT oFFica DONALD 1?. WILSON, 0F OMAHALNEBRASKA, AssIeNon' T0 L. M. DECKER 00., on OMAHA,

NEBRASKA wAsnINc MACHINE DOLLY Application filed' April 24,

The object of my invention is to provide a washing machine dolly of simple, durable and comparatively inexpensive construction.

vide a washing machine dolly of cast con struction, wherein parts may be formed with irregular surfaces for imparting to the clothes and waterwithin the washing machine a downward and outward movement and at the same time an oscillating movement relative to the bottom of the washing machine tub.

Still a further objectis to provide a dolly construction applicable for use with an operating mechanism mounted on the under side of the tub and projecting up into the tub proper, the dolly construction being quickly and easily removable from the operating mechanism.

Still a further object is to provide a dolly stem of angular construction to prevent the wrapping of clothing around the stem.

With these and other objects in view, my invention consists in the construction, arrangement and combination of. the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings. Although the invention'i's susceptible of a variety of embodiments, it is unnecessary to fully describe and. illustrate more than one in order to give a full understanding of the invention. both from its structural and functional standpoints. Accordingly, I have illustrated a preferred and desirable embodiment of the invention in the accompanying drawings, in which: I

Figure .1 is a sectional view through a washing machine tub with my improved dolly shown thereon, parts being illustrated in section. to better illustrate the construction.

Figure 2 is a top or plan'view of the dolly by itself taken on the line 22 of Figure 1.

Figure 3 is a detail, sectional view taken on the line 33 of Figure 1.

Figure 1 is a detail, sectionalv view taken on the line H of Figure 2; and

Figure 5 is an enlarged, detailsectional view of the upper'portion of the dolly hub and its assembly.

with a pair of flat sides 1930. Serial 110,446,382.

In the accompanying drawings, I have used the reference character A toindicate generally a washing machine tub, which in Moreparticularly, it is my object to procludes side walls 10 and a bottom 12. A portion of the framework upon which the tub is supported is indicated by the reference character 14.

An'operating mechanism B suitably driven by'an electric motor or otherwise is used for imparting to the dolly agitation or movement. y 1

v Extending upwardly from the operating mechanism B is a drive shaft 16. The drive shaft 16 extends through the bottom 12 of the tub A and it is upon this shaft that my improved dolly is mounted for operation.

Enclosing a portion of the shaft 16 is a sleeve 18. The sleeve 18 is in watertight connection at its lower end with the bottom 12 .of the tub A as .at 20;

An enlarged bearing portion 22 is formed upon the'sleeve 18 a slight distance above the bottom of the tub. The purpose of the enlarged portion will be hereinafter more fully set forth. The sleeve 18 terminates short of the upper end of the shaft 16.

The upper end of the shaft 16 is provided as at 24. A bearing head member 26 is mounted upon the upper end of the shaft 16. The bearing head member 26 is formed with a central socket or opening, which for a portion of its length is annular and receives the shaft 16 and for another portion of its length'is substantially rectangular, so 'as to receive the portion of the shaft referred to by the reference numeral 24. The bearing head 26 serves as a means of pose of providing the hub 28 open at both ends is to permit ready and easy machining of the parts on the inside during manufacturing operations,

The hub is slightlyof greater interior diameter than the sleeve 18.

Substantially near the lower end of the hub 28, I provide a bushing 30. The bushing 30 serves as a bearing and engages the enlarged portion 22 of the sleeve 18. The up per end of the hub 28 is slightly contracted and is provided with an opening substantially rectangular in cross section, soas to receive the bearing head 26, as clearly illus trated in Figures 3 and 5 of the drawings.

The bearing head 26 rests above the upper edge of the sleeve 18. The hub 28 is formed with a shoulder 32 which rests upon an enlarged portion or shoulder 34 formed on the bearin head 26.

It will thus be seen that the bearing head 26 and the enlarged portion 22 on the sleeve 18 serve to align and position the entire dolly assembly or device.

The tubular portion 28 of the dolly near its lower end is curved outwardly and downwardly as at 36. The extreme outward end of such portion 36 is slightly curved upwardl as at 38. The portions 36 and 38 extend ownwardly and outwardly and away from the hub 28 and 'are annular in complete outline as shown in Figure 2 of the drawings.

The purpose of providing the inclined and irregular surfaces 36 and 38 is to. impart to the clothes. and water within the washing machine tub 10 a movement outwardly or away from the hub 28.

A plurality of radially extending wings 40 are formedupon-the annular portlon of the dolly device and extend upwardly-therefrom.

The actionof the wings 40 as well as the irregular surfaces 36 and 38 when the entire device is oscillated is to produce a whirling and outwardly directed current of water within the tub. The motion of the water is the bearing head 26 by a screw or the like 50.

The disc 46 forms a watertight seal or connection at the upper end of the hub, and at the same time the screw 50 serves to connect the entire dolly assembly together, that is the bearing head 26, the (1150 46 and the upper end of the hub 28.

It will be noted that-the bearing head 26 when assembled with theupper end of the shaft 16 becomes a unit or portion thereof and that the entire dolly may be removed by simply raising it upwardly away from the shaft 16 and head 26. I

My entire dolly device may be quickly and easily placed in position over the drive shaft member 26 and 16 and due to the bearin ways aligned and -wedged between the bottom of the dolly and the tub bottom.

It will be noted that the stem or upstanding hub 28 of the dolly is angular in cross section. The specific purpose of this is to create a water action of sufiicient radial forceto work the clothes away from the stem and thereby prevent them from wrapping around it. I have experimented and find that a triangular stem accomplishes this purpose with .entire satisfaction.

Some changes may be-madein the arrangement and construction of the various parts of my washin machine dolly without departing from t e real spirit and purpose of 4 my invention, and 'it ism intention to cover by m claims, any mod' ed forms of structure or used mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention:

- 1. A dolly for washin machines comprising a central hub-shaped member open at its upper end, a bushing mounted within said hub near its upper end, means for sealing the upper end of said hub, said last means being fastened to the bushing and serving also to retain said bushing in assembled relationship to the hub, an annular base formed on the hub having its upper surface curved downwardly and outwardly, and wings extending; upwardly from said base. i

2. A dolly for washing machines comprising acentral hub-shaped member with a comparatively large annular base, an opening in the upper end of said hub, a bushing in said opening, an enlargement on said bushing to prevent its upward movement relative to the ub, and a cap connected with said bushing and engaging the upper end of said hub.

3. A dolly for washing machines comprising a central hub-shaped member with a comparatively large annular base, an opening in the upper end of said hub, a bushing in said opening, an enlargement'on said bushing to revent its upward movement relative to the hub, a seat in the upper end of said-hub, and asealing cap coactin with said seat and connected with said bushing.

Des Moines, Iowa, August 5, 1929.

- D. P. WILSON.

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