US1793522A - Washing-machine tub - Google Patents

Description

H. F. SNYDER WASHING MACHINE TUB Filed July 11, 1927 I ole/a7" 757C 67; -wzua GA M Mull Feb. 24, 1931.

Patented Feb. 24, 1931 UNITED STATE HOWARD F. SBIYDER, OF NEWTON, IOWA, ASSIGNOR IO TEE MAYTAG COMPANY, OF

' NEWTON, IOWA, A CORPORATION OF DELAWARE WASHING-MACHINE TUB Application filed July 11:1927. Serial N0..204,967.

This invention relates to tubs for power driven Washing machines and more particularly to details of construction of means for supporting the tub on its legs'h The present invention is primarily desidethe planes ofthe vertical walls of the tub, whereby the downward thrust of the tub, especially when in operation, is supported on these inwardly inclined surfaces, as distinguished from vertical .wall surfaces.

Another object resides in forming the tub of relatively light gauge material, preferably metal, which material has integrally formed leg attaching means on its bottom or side walls to which the supporting legs of the tub may be attached without perforating the wall of the tub.

Another object resides in providing a cast metal tub, and preferably cast aluminum tub, of relatively light gauge metal and wherein the basal wall portions are so constructed and arranged so that the supporting legs may be easily and securely bolted or otherwise fastened thereto.

These and other objects of my invention will be apparent from a perusal of the following specification when taken in connection with the accompanying drawing, where- Fig. 1 is an elevational side view of my tub Fig. 2 is an enlarged sectional view of a corner of the tub. v Fig. 3 is an enlarged fragmentary eleva tion of the lower left portion of the tub shown in Fig. 1, and

with a certain portion thereof broken away.

Fig. 4 is a bottom sectional view of the leg fastening lugs.

Referring to the drawings in detail, my improved tub is of the general construction shown in both of my co-pending applications above identified and includes a preferably substantially square tub 2 of relatively light gauge material, preferably metal, and having rounded corners. In the present embodiment I have described my tub as made of aluminum or aluminum alloy and preferably cast. In this manner a very light, sturdy tub is provided and the tub itself will have all of the advantages and virtues set forth in said cp-pending application Serial No. 568,158, which claims the particulars or details of the tub itself. The present application is directed to the leg supporting construction of the tub and those features of the tub construction which cooperate with the leg supports.

The side walls 4 of the-tub are preferably vertical and at their upper ends are provided with a reinforced rim 6. The lower portions 8 of the tub walls incline inwardly and downwardly and thence extend substantially horizontally as described and claimed in said ap-, plication, Serial No. 568,158, to form the bottom part 10 of the tub. In the preferred construction the liquid impeller, not shown, is arranged to project upwardly through the horizontal portion of the tub bottom, as fully disclosed in both of the previously filed ap plications above identified.

In the embodiment selected to illustrate the invention the basal portions of the tub walls have integrally formed leg attaching means whereby the supporting legs may be attached directly to these leg attaching means without perforating the tub walls. And another important feature of my invention resides in locating the leg attaching means on the inwardly and-downwardly inclined wall. surfaces 8, so that the tub is supported at four corners on surfaces which incline inwardly and downwardly toward the central axis of the tub. This provides a very sturdy and balanced support for the tub and eliminates the presence of the usual shearing action of the weight of the tub, if the tub be supported by legs which are attached at the I wall portions 8 at each of the four corners of the tub are provided with integrally formed depending lugs'. .Any desired leg attaching means may be availed of, but in the present instance I prefer to provide lugs 12 of approximately right angular shape in plan view,

and of the general cross section shown in Figf' i of the drawing, wherein by placing the lugs at each corner, each leg of the L-shapedlug will be parallel with the adjacent side .of the a tub at the corner and the apex of the lug will be slightly curved toconform to the curved corner of the tub. In addition the extreme ends of each lug are provided with rounded 'enlargements 14, which are perforated to receive fastening bolts 16, or the like. The supporting legs 18 are likewise of approximately right angular shape in cross section at their upper ends and are shaped exactly to fit the outer or exterior walls or faces of these attaching lugs. By locating the legs on outersides of the lugs and securing them together at the two points indicated in Fig. 4, a most sturdy and balanced construction is provided, since the weight of the tub being supported on the four inclined surfaces-is more concentrated toward the center of the leg supports, which is the central axis of the tub. These legs are rigidly bound together not only at their points of attachment to the lugs but also at their basal portions as shown in" my pending applications above identified.

In addition by placing the leg attaching means on th inclined surfaces, the downwardly extending legs are brought directly under the tub and inside the planes of the vertical sidewalls so that there is a more pronounced inward and downward thrust of the tub load, and a more compact arrangement is secur :1, since the tub legs do not project beyond the lateral walls 0 the tub, but are well within them. It will also be noted that the upper extremities of the legs abut' against the sloping bottom of the tub.

W i By the above described construction it will be apparent that I have eliminated the necessity of forming holes in the basal walls of the tub for attaching the supporting legs of the tub and this is most important because, under the constant vibrations of the impeller, great passing through perforations in the walls,

these tend to work loose and permit leakage of the water. In addition by placing the legs at the points indicated, I have elimmated the necessity of supporting the tub from its vertical walls, which construction has a tendency to produce a shearing effect on the leg fastenin means when supported by a vertical wall.

aving shown and described my invention, I claim: a

1. In a washing machine, a tub constructed of relatively thin metal, said tub having a basal portion of approximately rectangular form in horizontal section, the walls of said basalportion inclining inwardly and downwafdly," integral leg attaching lugs of approximately right angular form in plan view extending downwardly from the basal portions at positions coinciding with the corners formed by the walls of said basal portion, and legs secured to said lugs, the lugs being spaced inwardly from the vertical walls of the tub a substantial distance so that the legs are well inside of the planes of said side walls, and the downward thrust of the tub is upon the said inclined basal portions.

2. In a washing machine, a tub constructed of thin metal and provided with side walls extending vertically for a portion of their extent and inclined inwardly and downwardly for the remainder thereof, leg attaching lugs on the inwardly and downwardly extended portions and each spaced a substantial distance inwardly of the vertical portion of the side walls, so that the downward thrust of the tub is on the inclined wall portion, and legs connected with said lugs.

3. In a washing machine, a tub constructed a relatively thin metal having an inwardly inclined basal portion of approximately rectangular form in horizontal cross sect-ion, leg attaching lugs extending downwardly from the basal portion at positions coinciding with the corners formed by the walls of said basal portion, said lugs being of approximately right angular form in horizontal section so as to conform to the contours of said corners, each ofthe arms of said right angular lugs being providedwith enlarged extremities having holes formed therein, legs having portions of a cross section com lemental to the contours of said lugs, an means passed through the holes of said lugs and through said legs to removably secure the legs in place.

In witness whereof, I hereunto subscribe my name to this EsIpeci fication.

OWARD F. SNYDER.

strain is placed on the supporting legs. In

constructions where the legs are bolted direct- 1y to the walls of the tub by bolts or rivets

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