Improvements with the rotary tank washing machines

FRENCH REPUBLIC

SERVICE

of the PATENT PROBLEMS INTELLECTUAL INDUSTRIELLE On Gr. 16.-O. 5.

Classification [...] :

No. 1.147.198 06/d

Improvements to washing machines rotating tub.

MM. Jean [...] Georges and HENRY residing in France (Vendee).

Demanded 13 March 1956, to^{h l} ll^m, to Paris.

.-Issued 3 June 1957 Published 20 November 1957.

It is known that washing machines rotating tub

about a horizontal axis allow washing

perfect from laundry without wear or the risk of over- [...]

[...]. Indeed, the rotation of the vessel provides a

perfect shuffle the laundry and the wash water and

the laundry will not be in contact with

organs fixed or mobile, projecting inside

of the vessel, as in the machines throbber

rotary.

In these washing machines rotating tub, the [...] -

rage laundry is achieved by rotating the vessel

washing itself to high speed to expel

water by the effect of the centrifugal force through the

perforations of the vessel. This is an advantage

poor another washing machines

such as turbine, wherein the [...] cannot

not be carried out in the trough itself, which

requires removal of the laundry from the vessel after

washing it. With machines rotating tub, the

dirty laundry introduced in the vessel is removed only

after being washed and dried.

However, the dewatering necessarily centrifugation-

site with the use of a basket or basket scrubber

rotating within a stationary receptacle solid wall. In

more, the spinning mode involves the presence

a drive motor to be potent

driving the rotating bowl at a rate sufficient

upon centrifugation. Furthermore, this large

rotational speed requires a sufficient reinforcing-

health of the machine frame and members transmitted-

sion, as well as the presence of means-Capital

station suitable for immobilizing the machine

in spinning despite the shudder due to

the high speed of rotation of the vessel. Finally, the

[...] mode assumes the presence of an-

device change or speed variation which

is always relatively expensive and increases the

cost of the assembly.

Therefore the present invention relates to

improvements centri suppressing the spin-

[...] and for dewatering within the vessel

itself while it is stationary, said improvements further avoiding the presence of a basket, so that the machine has a single rotatable vessel. The dewatering system provided according to these improvements is a hydraulic pressure system acting on the laundry for driving off water, the lighting system is designed for such washing machines and this, so as to allow extreme simplification of the construction and operation of the machine. Indeed, washing machines improved according to the invention are essentially characterized in that their rotating tub comprises, on the side opposite to the opening for inserting laundry, a pressure medium inlet, and between the two, a vertical transverse partition of resilient material which the edges are sealingly attached to the walls of the vessel, the septum may be pushed back from the side opposite to the opening to allow the introduction of the laundry in the majority of the tank during washing. For dewatering laundry, this partition is discharged in the opposite direction by the pressurized fluid, so that the laundry is compressed against the walls of the vessel and dewatered [...].

For the pressure medium inlet behind the resilient partition wall on the side opposite its opening, the vessel has on its corresponding pole located on the axis of rotation, an inlet nozzle on which is connected, by means of a rotary joint, sliding or multilayer coating film, an inlet for fluid under pressure. Around the outer end of the nozzle, the tank carries a [...] that leads into a supply line, connected by means of a rotary joint, sliding or multilayer coating film, and containing pipes causing the water inside the vessel for washing the other side of the resilient partition wall.

In a particularly advantageous embodiment of the improved washing machines according to the invention, the [...] washing water conducting and that of fluid under pressure to send behind the resilient partition wall are both connected to a water pipe under pressure by means of a valve device and control successively, by the rotation of a single operation knob, all operations necessary for the operation of the machine for washing and dewatering.

Otherwise, other advantages and features of the improved washing machines according to the invention will appear during the following description of a possible embodiment of the machine. This description is given with reference to the attached drawing herein to simple example in no way limiting.

On the drawing:

The fig. 1 is a view in vertical section of a washing machine according to the invention;

The fig. 2 is a partial view, also in vertical section, but simply representing the detail of the branch [...] to the vessel of the machine;

The fig. 3 is another partial view in section representing a suction device provided on one of the lines of the machine;

The fig. 4 is a cross-sectional view of the machine represented [...] when the;

The fig. 5 is a schematic of the join the individual [...] d ' [...] on the valve device and control [...], during various operations carried out by the machine;

The fig. 6 is a top plan view of the control device and fitting.

The washing machine according to the invention is of the type with washing tub rotatably mounted about f ' an axis [...]. More specifically, the machine represented is similar to that which has been the subject of a previous application in France, the names of the two requesters, 8 December 1955, for "rotating tub washer". In effect, the machine has a washing tank spherical 1 constituted by two hemispherical sections [...] 16 are joined to one another. The raised edges 2 of the two parts are joined together and form a raceway in the groove relief carrying more rollers distributed around the vessel. One of the rollers, the roller 6 in this instance, is carried by the shaft of a motor 8 to drive rotating the washing tub 1. Thus said washing tank is mounted actually rotatable about the theoretical axis x-y [...] perpendicular to the plane of the corresponding to the race 2.

According to the essential feature of the improvements of the present invention, the washing tub includes an elastic septum 20 whose edges are sealably connected between the raised edges 2 of the two hemispherical parts 1 a and 16. Because of this mounting, the edges of the partition 20 enables it to provide the tightness of the assembly of the two hemispherical sections and 16. The elastic septum 20 may be rubber, or other elastic material capable of resisting heat and suitably to washing detergent products introduced into the trough. The baffle can be flat at rest to extend in the equatorial plane corresponding to the race 2. It can also be configured as a half-sphere to conform to the shape of the portion 16 of the vessel. Indeed, the elastic septum should be able to release the major part of the interior of the vessel upon insertion of the laundry by the opening provided in the part and closed by the door 9, which is preferably oval, and inwardly curved.

The Below the portion of the vessel is provided a gas burner manifold 10 or any other heating device! fage to heat the vessel during washing. The The portion of the vessel has on its internal face, ribs or bosses 11 consisting of die inserts. The shells are perforated and [...] 13 carried by the exterior of the tank open therein, these [...] 13 and the shells 11 is configured to be used as a means of supply of water to the interior of the vessel for washing. Furthermore, the bosses or ribs perforated 11 improve the stirring of the clothes during the washing.

The [...] 13 extend from a [...] 14 carried by the pole of the vessel which is opposite to the center of the door 9. The [...] has, on its outer surface, an inlet nozzle 15 and has, in the middle, through a tube 21 within the portion 16 of the vessel. The inner end of the tube 21 has a flange 22 suitably shaped attached to the 16 of the tank by screws 23 in place maintaining [...] the [...] 14 itself. On the outer end of the nozzle 15 of the [...] 14 and on the corresponding end of the tube 21 are connected respectively two coaxial tubes 24 and 25 constituted by a single piece. The tube 24 is closed at the end but a nozzle 26 opens in its interior on the side, the nozzle for connecting a water supply line 27. Another water supply line 28 is further connected to the outer end of the tube 25. Since the [...] 14 and the tube 21 are carried by the tank 1 and rotate during its rotation, while the tubes 24 and 25 are fixed, their connection is effected by special sliding or rotating joints 24a and 25a, the corresponding ends of the connected parts and is appropriately beveled (see fig. 2). The connection coaxial tubes 24 and 25 on the [...] 14 and the tube 21 can be also carried out by a seal which can be pinned enabling them to be separated during rotation of the vessel during washing. This is perfectly possible since there is no need of supplying the tank with water, during the wash itself. The seal these can be controlled for example by means of a cam for spacing the coaxial tubes 24 and 25 of the [...] 14 and of the tube 21.

For washing laundry into a tub, washing water is fed by the pipe 27 to the [...] 14, the introduction of the water inside the vessel itself by the perforated pipe 13 and the bosses 11. When a sufficient amount of water has been introduced into the vessel, it is suitable recess stop the water supply of the pipe 27 and can be then use the motor 8 for driving the vessel in a rotational motion in one direction and in the other, the burner manifold 10 or any other means further heating the vessel. The laundry is perfect due to even of the type of the washing machine and mixing provided by the presence of the bosses 11 within the vessel.

When the washing operation is finished, the motor 8 is stopped so that the trough is stationary. Can be the by connecting the pipe 27 on a water discharge line against and also providing for the supply of the pipe 28 connected to the nozzle 21. Thus pressurized water enters the vessel through the inlet nozzle 21 which is located in the part behind the the resilient partition wall 20. The pressure of the water urges the partition 20 against the clothes is compressed between the partition and the inner wall of the part the of the vessel (see fig. 4). The wash water which impregnates the washer and has not gravitated through the passages 13, is then expelled by compression of the laundry. It should be noted that said compression laundry is not violent and can in no way be compared to the compression that can be achieved between two rolls of a dewatering device to hand. However, the result obtained by this mode of dewatering is excellent.

When the dewatering is completed, it is suitable recess drain water located behind the partition 20. To this end, the pipe 28 is connected to a discharge pipe so that a large part of the water flows by simple gravity. The drain fully water located behind the partition 20 can be obtained by any system or suction pump connected to the pipe 28. Therefore, Fig. 3 represents a suction system particularly simple and can be provided in the pipeline or 28 at its end. The system consists of a chamber 29 into which opens the pipe 28 and an injector 30 for the injection of water under pressure, a, discharge pipe 31 is further connected to the chamber 29. Hence, the water injected under pressure by the injector 30 in the chamber 29 to suck up the water flowing in the pipe 28, and consequently that of the water inside the tank behind the partition 20.

Preferably, according to another essential feature of the improvements according to the invention, the machine comprises a general control device for providing, by the operation of a single button, the control of the different successive operations necessary for washing and dewatering. The control device, which is represented in fig. 6, includes an operation knob 32 fixed on a rotational axis 33 controlling, by means of cams (not shown), two three-way valves 34 and 35 on which are connected respectively the pipes 27 and 28. Two general pipes 36 and 37, respectively of the water supply and discharge, are also connected to these three-way valves. The rotational axis 33 of the operating device also controls turning on and off of the motor 8, and operation of the injector 30 of the induction system shown in Figure 3.

The general control device is arranged so that the button 32 has eight use positions A, B, C, D, E, F, G, H, indicated on a faceplate 38. For rotation of the knob 32 in the direction of the arrow /, can be passed from one to the other of these positions, the axis 33 then successively controlling the different successive operations for washing and dewatering, and, in the desired order. Therefore, the order of operations is as follows:

1° Position A. - In this position of the knob 32, the operation is completely stopped;

2° Position B. - In this position, the axis 33 drives the valve 34 so that the duct 27 is in communication with the pipe 36 general water supply. Energization of the tub with washing water is is secured. At the same time, the axis 33 drives the valve 35 so as to communicate the pipe 28 with the general discharge pipe 37, to allow the escape of air which is compressed in the part.

3° Position C. - Tl is a new stop position.

4° Position D. - In this position, the axis 33 simply controls the start of the engine 8 for driving the rotating bowl. This position corresponds to the washing operation itself.

5° Position E. - This is a new intermediate stopping position.

6° Position F. - In this position, the axis 33 drives the valve 34 to be in communication with the general discharge pipe 37 for allowing the discharge of the washing water. Simultaneously the axis 33 controls the valve 35 so as to connect, the [...] -