US1828908A - Tub - Google Patents

Description

Oct. 27, 1931. J. L. PERKINS ET AL 1,323,908

TUB

Filed March 10. 1928" IN VEN TORS AQTTOVRNEY,

in the course of the following description.

Patented Oct. 27, 1931 v UNITED STATES PATENT OFFICE JULIAN L. PERKINS, OF WEST SPRINGFIELD, AND JOHN OAKLEY AND HIRAM D. CROFT,

OF SPRINGFIELD, MASSACHUSETTS, ASSIGNORS TO PERKINS MACHINE & GEAR COM- IPAN'Y, OF WEST SPRINGFIELD, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS TUB Application filed March 10, 1928. Serial No. 260,595.

Our invention relates to improvements in tubs, and more particularly to oscillatory tubsin clothes washing machines, in which there are veins,.partitions, fins, and the like, and the same is a continuation in part of our application for Letters Patent of the United States, filed June 9, 1927, Serial No. 197,721.

The primary object of our invention is to provide a clothes container or tub, for a washing machine, which is capable of expeditiously and thoroughly removing the dirt from the clothes therein. It is well understoodthat the rapid and variable agitation of clothes in the oscillatory tub of a washing .wall which extends inwardly from the side of said tub, or tangential to a circle having the axis of the tub as a center, and there may be an air pocket at the top on one side of said paddle wall. Preferably the paddle wall is roughened on one or both sides, and has perforations therein, and it may be provided with a curved member at the top onthe side opposite to that where the air pocket is located. Bythese means the flow of the water in the tub is promoted to a greaer degree,.

the tumbling'and rubbing actions of the paddle wall on the clothes is greatly enhanced, and the quick and "thorough cleansing generally of the clothes is insured; I

Air is confined and more or less compressed in the air pocket, when the clothes and water are dashed upwardl onthe side of the paddle wall'where sai pocket is located, and saidair tends to expand, when theclothes recede, and acts thereon in a manner to accelerate the movementthereof.

Other. obj ects and advantages will appear We attain the objects and secure the advantages of our invention by the means illustrated in the accompanying drawings, in wh1ch- Figure 1 1s a top plan in partial section of a portion of a tub which embodies a practical-form of our invention, the section being taken on lines 1-1, looking down, in Fig. 3, Fig. 2, a horizontal section through a portlon of said tub taken on lines 2-2, looking up, in Fig. 3; Fig. 3, a side elevation of the tub with portions of the, same broken out and in section in order to disclose the paddle wall and other parts in said tub, Fig. 4, a fragmentary portion of the tub in partial section, with that part of the side of the tub with whichthe paddle wall, air pocket, and splash guard are directly connected, or to WhlCh they are directly attached, broken away; Fig. 5 is a partial sectional view through the tub taken on a line 55 of Fig. 1 and at right angles to the plane of the paddle wall and looking at the inner edge of the said wall.

Similar reference characters designate sim ilar parts throughout the several views.

The upper terminal portion of an agitator member is represented at 3, in Figs. 3 and 4, and mounted on and secured to said member,is a tub 4, the bottom of said tub in the center beingiconcavaand provided with a flanged member 5 secured in the concavity and directly mounted on and rigidly secured to said member. The member 3 is oscillated by any suitable mechanism, such, for example, as that disclosed'in the aforesaid application.

Within the tub 4 is a vertical fin or paddle wall 6 which has at the top on one side an air pocket 7, and may ,have at the top on the other side a splash guard 8. Preferably the paddle wall 6 has oneor both surfaces roughened, and has a number of minute holes therein, to provide said wall with more efficient rubbing surfaces. Vertical corrugations 9 are here employed to provide the appear at 10. The paddle wall 6 is tan ential to a' circle" which is concentric with t e tub V 4, or parallel with a diameter of said tub.

Difierently stated, the position of the paddle wall 6 in the tub 4 is such that, if chords of equal length and each of a length equal to that of said wall be drawn in opposite d1- rections from the oint of intersection between said wall an the tub wall, the angle between the paddle wall and one chord is acute and the angle between the paddle wall and the other chord is obtusesee Fig. 1. As a result of this construction, the clothes in the oscillating tub 4 are turned when struck by the paddle wall 6 from the obtuse-angle side, as when the tub is artially rotated to the right, and they are su jected to a squeezing action when struck by said wall from the acute-angle-side, as when the tub is partfally rotated in the o posite direction. The corrugations 9 natura ly exert a rubbing action on the clothes as the latter are dashed toward and away from the center of the tub in contact with either or both sides of the paddle wall, and the holes 10 permit water to escape from said clothes when they are struck by or struck against said wall, Whereby the clothes are rendered more pliable and in condition to benefit to the fullest extent from said rubbing action.

The air pocket 7 is on the obtuse-angle side of the paddle wall 6 and at the top of said wall. As shown in Fig. 5 its wall curves upwardly, and over, from the top of the paddle wall 6 to the side wall of the tub. It has at the inner end a downwardly extending part 11 which completes the pocket. Thus the space within the air pocket 7 is closed except at the bottom. The outer edge of the air pocket 7, and also the outer edges of the paddle wall 6 and the splash guard 8, are directly connected with or attached to the wall of the tub 4. As the water in the tub and the clothes are dashed upwardly against the paddle wall 6 and into the pocket 7, the air in said pocket is more or less compressed, and this compressed air expands as soon as the clothes drop or move away from the pocket.

This air acts on the water in the pocket in such a manner as to tend to expel the same.

The splash guard 8 is on the obtuse-angle side of the paddle wall 6, assists in turnin the clothes on that side of said wall, and prevents the water from being thrown out of the tub 4. when said wall strikes the clothes from said side, the water then being forced quite violently upward. The air pocket 7, being on the acute-angle side of the paddle wall, prevents the water from being thrown out of the tub, when said wall strikes the clothes from that side.

It will now be seen that, when our tub contains the proper amount of water and quantity of clothes to be washed and is in operation, said clothes are subject to divers kinds of actions and movements during the washin operation, which are unobtainable with t-u s having difi'erentkinds of fins, paddles, and the like, and that greatly improved results are obtained with the new tub.

In practice, the member 3 is set in motion and causes the tub 4 to be oscillated. Each time the tub 4 is partially rotated to the right the impact between the paddle wall 6 and the clothes in the path thereof causes said clothes to be returned. A certain amount of suction is produced as the clothes are moved by the paddle wall. Air compressed in the pocket by water and clothes splashing thereinto is released by the falling, or moving away therefrom of the clothes and expands against the water and causes the same to flow more freely down the acute-angle side of said wall, thus further increasing the movement of the water and in a direction N Each which it would not otherwise have. time the tub is partially rotated to the left, the impact between said wall and the clothes in the path thereof forces them into space between said wall and the Wall of the tub, and upwardly into the bottom of said pocket, and tends to squeeze. the same. As the tub continues to oscillate and the aforesaid actions on the clothes are repeated, more and more of the dirt is washed out, until in a comparatively short time said clothes are rendered clean.

Some modification may be made in the size, shape, construction, and arrangement of the parts of this tub, without departing from the spirit of our invention, or exceeding the scope of what is claimed.

We claim:

1. The combination with a cylindrical upright tub having an imperforate wall, of an upwardly extending paddle Wall projecting inwardly from the wall of the tub, a ledge at the upper side of said paddle wall overhanging at one side thereof and a pocket having a downwardly disposed opening which is located between the other side of said paddle wall and the wall of said tub.

2. The combination with a cylindrical up- I right tub having an imperforate wall, of an upwardly extending paddle wall pro ecting inwardly from the wall of the tub forming an oblique angle with a plane tangential to its line of contact with the tub, and a pocket between a side of said paddle wall and wall of the tub which has an opening disposed downwardly.

3. The combination in of a cylindrical wall extending upwardly from a bottom wall to form a tub, an upright paddle wall extending inwardly from said cylindrical wall and parallel with a vertical plane through the axis of said tub, a lodge at the upper side of said paddle wall which overhangs at one side thereof, a wall oined to sand paddle wall at the upper side a washing machine,

thereof which extends to said cylindrical wall and another wall joined thereto which extends between a side ed e of the paddle wall and said cylindrical wafi co-operating therewith to form a pocket havin an opening disposed downwardly towar s said lower wall.

JULIAN L. PERKINS. JOHN OAKLEY. HIRAM D. CROFT.

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