US1736738A - Washing appliance - Google Patents

Description

Patented Nov. 19, 1929 UNITED STATES PATENT OFFICE OLIVER I. GREENSTREET, OF OWENSVILLE, MISSOURI, ASSIGNOR OF ONE-THIRD T0 JOSEPH T. TATE AND ONE-FOURTH TO ID. ED' KRIETE, BOTH MISSOURI OF OWENSVILLE,

WASHING APPLIANCE Applicationfiled August 13, 1927. Serial No. 212,784.

This invention relates to washing machines, and particularly to a certain improvement on the washing machine shown in my Patent No. 1,638,730, granted August 9, 1927.

The general object of the present invention is to improve upon the construction illustrated in my prior application by the provision of means in the spray discharge pipe for preventing the passage of water longitudinally through the pipe and separating the pipe into two halves, such means causing a distinctly different operation of the washing machine and specifically causing a vacuum. to be created in the hollow base of the machine which will cause the water in the wash boiler to be intermittently drawn very violently into the base of the washing machine and carrying with it the greater part of the dirt that has been washed out of the clothes, this dirt being trapped in the base so as not to be forced into the clothes again.

My invention is illustrated in the accompanying drawing, wherein Figure 1 is a longitudinal section of my washing appliance;

Figure 2 is a transverse section thereof.

Referring to this drawing, 10 designates the base of my boiler attachment, this base being formed with a side wall 11 and a top 12. This top is transversely rounded but longitudinally straight so that the side margins of the top incline downwardly and laterally and join to the wall 11 at 13. The top wall 12 is joined to the wall 11 around its entire edge, of course, and this top wall 12.

on its downwardly inclined side portions is formed with a plurality of apertures 14.

A U-shaped spray discharge pipe 15 is provided, the lower extremities of the legs of which are soldered, brazed or otherwise connected to the top 12 at the ends thereof and open through this top. This pipe 15 is provided with a partition or septum 16 at the middle of the pipe and the horizontal portion of the pipe 15 on each side of this septum 16 is formed with perforations 17 discharging more or less downwardly. The chamber 18 formed below the wall 12 constitutes a dirt-collecting chamber. Preferably the device will be made of copper and the base will be of a size permitting it to be set within and rest upon the bottom of an ordinary clothes boiler.

In the use of this device, it is placed in a regular wash boiler and the boiler is placed on the stove or any other source of heat. The clothes are placed over the top of this attachment and the boiler is filled with water within four or five inches from the top, to which water has. been added a sufiicient quantity of powdered soap. As the temperature of the water rises, steam will be formed and the water will be caused to flow upward through I the legs of the pipe 15 and out through the holes 17 in the pipe until all of the water is forced out from said dirt-collecting chamber 18. While this is taking place, the water rises in the boiler to an extent equal to the amount of water which has been forced out from under the false bottom 12. When the pressure has been reduced within the chamber 18, water in the boiler rushes into the chamber 18 through the openings 14 pulling the dirt out of the clothes with force so that the clothes will wash not only by the gravity of the water but by the force of the water being drawn into the chamber 18. When the water has again filled the chamber 18, all is still until the water begins to boil, then the same action takes place all over again.

' This action is repeated about every thirty seconds, whereas in other machines of more or less the same type known to me there is a constant circulation and percolation of the water and no vacuum is created. My machine, however, works intermittently to cause the formation of a partial vacuum within the chamber 18 and the sudden inrushing of water from the boiler into the chamber and then the percolation of the water upward through the legs of the pipe 15. This action is due to the fact that the pipe 15 is provided with this partition or septum 16 and I have found in practice that this is not created unless the pipe 15 is. divided by this septum into two portions. Attention is called to the fact that apertures 14; are located adjacent the lower margin of the curved top 12 so that they are at all times covered with water in the bottom of the boiler, thus there is no escape of steam through these apertures and steam can only escape by forcing water up through legs 15.

One of the important points of this invention resides in the use of the partition 16.

within the pipe 15. In nearly every instance the water at one end or the other of the boiler is heated quicker than at the opposite end of the boiler (because of'the irregularity of the fire or something of that kind) and this water begins to flow first. In suchinstance the partition 16 or division midway of the pipe 15 prevents the water passingone leg of the pipe going on through up from 15 back tothe-bottom of the boiler,

the pipe through. the other leg of pipe 15. By preventing this constant ClI'CUlfl/EIOII. all the water in the part 18 is removed therefrom and as that water is removed apartialvacuum is created andtthisdrawsnewor other water into said chamber 18 which when heated to the boiling point; is forced up through the pipe 15 and out through holes 17 'over the clothes as before. The. intermittent operation of the machine is caused by the time required for the heating of the water that has been drawn into said: chamber 18 by reason ofsaid vacuum" created; as above; stated.

@bviously, I do not wish to be limited to the exact; details of construction and arrangement: of parts as these might be varied in some respects without departing from the spirit. of the invention as claimed. Preferably the devicewill: be formed of copper or planishedi copper;

A washingmachine of the character de scribed, including as hollow base comprising an outer vertical wall and a transversely joined at its ends to said wall and the side edges of the top" intersecting the \Vfljlh at. the. bottom of the curvech top, the top beingwall, the side margins of the top adjacent the lower edgesthereof being formed with per forations, and a'U;-shaped* pipe having'two vertical legs connected to and opening through said top adj said pipe havingahorizontal portionformed with a partition at its middle and the horizontal portion being perforated with spray openings on each side of said partition.

In testimony whereof I hereunto afiix my signature;

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