US3116626A - Laundry machine for washing and centrifuging with slip clutch - Google Patents

Description

1964 D. J. MOSCHETTI ETAL LAUNDRY MACHINE FOR WASHING AND CENTRIFUGING WITH SLIP CLUTCH Filed Dec. 15, 1961 2 Sheets-Sheet l 43.2 INVENTORS 55 Q9 DONALD J. MOSCHETTI 1 Q CARL c. ROECKS 41 LYNN v. YORK JR.

AILTORNEY Jan. 7, 1964 n. J. MOSCHETTI ETAQ 3,116,526

LAUNDRY MACHINE FOR WASHING AND CENTRIFUGING WITH SLIP CLUTCH Filed Dec. 15, 1961 2 Sheets-Sheet 2 IN VENTORS CARL C.ROECKS LYNN v. YORKTJR.

ATTORNEY 1 DONALD J. MOSCHETTI;

United States Patent LAUNDRY MACHINE FOR WASHIWG AND CENTRlFUGlNG WITH SLIP CLUTCH Donald J. Moschetti and Carl C. Roecks, Phoenix, Arm, and Lynn V. York, .l'r., Westchester, Ill., assignors to General Electric Company, a corporation of New York Filed Dec. 15, 1961, Ser. No. 159,564 2 Claims. (Cl. 68-23) The present invention relates to laundry machines and more particularly to a rotatable basket laundry machine suitable for washing and drying a laundry load.

It is a principal object of the invention to provide a washing machine in which an ellective washing action is accomplished without the use of mechanical agitators or the like.

It is an object of the invention to provide an improved laundry machine having an openwork basket within which the laundry is placed, and a drive mechanism which establishes a slow speed rotation of the basket, combined with recirculation of liquid, to provide agitating action, and a high speed basket rotation for centrifuging liquid from the laundry.

It is a further object of the invention to provide a washing machine having a common drive mechanism for the washing and extraction functions, said mechanism being restrained by the resistance of the liquid surrounding the wash basket to provide a low rotative basket speed suitable for a washing or rinsing operation, and being effective to accelerate the basket to a high speed for centrifuging as the standing liquid is removed from about the wash basket.

It is a further object of the invention to provide a washing machine which includes a perforate wash basket and mechanism for rotating the basket slowly during the washing operation while directing a jet of recirculating wash liquid against the laundry in the basket below the normal liquid level, to effect the laundry washing action.

To effect these and other objects, the present invention contemplates a comparatively small capacity general purpose clothes laundering machine which is also well adapted for washing specific items such as a plurality of diapers. The wash basket is constructed with a perforate cylindrical sidewall and bottom wall. The basket is mounted for rotation on a vertical axis within an imperforate stationary washing compartment or tub. To wash laundry in the basket, wash water is fed into the tub until the water level reaches almost to the top of the basket sidewall. With the open character of the basket sidewall, the laundry basket is immersed by the water fill in the surrounding tub. The basket drive motor is then energized in the wash direction and through a slip clutch mechanism, the basket is rotated slowly against the re sistance offered by the height of standing Water in the tub. Rotation of the motor in the wash or agitate direction causes a pump communicating with the tub interior to circulate water from the tub to a water nozzle located several inches below the normal liquid level in the tub. The nozzle opening is directed toward the basket center shaft in a substantially horizontal plane, and sends recirculating water through the basket perforate sidewall against the laundry in the basket. This combination of slow rotation with recirculating water impinging on the laundry produces turnover and water movement promoting vigorous agitating action suitable for washing and rinsing.

At the conclusion of the washing period which preferably is time-controlled, the drive motor is stopped and then reversed. Reversal of the motor actuates a pump mechanism which causes water from the tub to be pumped to an exhaust drain. As the water level in the tub and basket drops, there is a gradual decrease in re- ICC sistance to the rotation of the basket, whereupon the clutch mechanism is effective to accelerate the basket to a relatively high speed for centrifuging liquid from the laundry. This high speed rotation continues for the duration of the spin period, following which there may be additional rinse and spin cycles. Preferably, the operative cycle of the machine should be time-controlled by a suitable conventional appliance timer through a cycle which could include one soak and flush period, a wash period, a spin-out of wash water, a pre-rinse and a full rinse followed by a final spin removal of the rinse water. The first so-called soak period, which in actuality is a first rotative wash period, allows a period for the removal of caked or other matter prior to the main wash operation. The soak water is flushed out and a fresh charge of water and additive is added for the main wash operation. The remainder of the time-controlled cycle may be conventional or may utilize any of the generally known cycles common to the laundry arts.

The invention both as to its organization and principle of operation, together with further objects and advantages thereof, will best be understood by reference to the following specification taken in connection with the accompanying drawings in which:

FIG. 1 is a side sectional elevation of a machine employing the invention;

FIG. 2 is a top plan view of the machine with the lid removed;

FIG. 3 is a partial side elevational View of the machine with the cabinet side removed for viewing a load of clothes and liquid;

FIG. 4 is a section viewed along line 44 of FIG. 3;

FIG. 5 is a partial view in section of the upper portion of the machine centerpost;

FIG. 6 is a partially sectionalized bottom view of the reversible pump with the cover removed;

FIG. 7 is a partial section viewed in greater detail showing the motor and drive mechanism;

FIG. 8 is a plan View of one clutch plate; and

FIG. 9 is a plan view of the transmission end cap.

Shown in FIG. 1 is a clothes washing machine 10 embodying our washing principle. The machine includes a substantially rectangular outer appearance cabinet 12 and is divided horizontally by a mediately positioned wall 14 into an upper compartment 16 and a lower compartment 18. The upper compartment is water retentive and serves as the washing compartment or wash tub. The upper compartment used in the embodiment herein may be rectangular, with 14-inch sides with a 10-inch depth. Within the washing compartment there is provided a cylindrical wash basket Zll rotatable on a vertical axis. Above the open top of the basket 24 the top of the cabinet has an opening 22 providing access to the basket for loading and unloading. Normally, this opening is covered by a raisable lid 24 which protects against spillage from the machine interior.

Within the lower or machinery compartment 18 there is mounted the main drive motor 30, the transmission mechanism 32 and any conventional sequence controls 34 (see FIG. 4). In a conventional manner well understood in the art, the controls are connected to suitable knobs or buttons 36 by which the proper timing sequences may be manually preset for operation.

The washing action of the invention is a result of the inter-action of the rotating basket 20 and the recirculation of water to the basket. To accomplish this result, the basket 20 is constructed with a perforate sidewall 40 and preferably a perforate circular base 42. In a presently preferred embodiment of the invention, the basket is 12 inches in diameter and 6 inches in height. The sidewall and base may be open mesh screen or wire, as shown, or may be perforated sheet metal. In either instance, the

percentage of opening in the sidewall should be over 50% and the greater this percentage, consistent with structural strength, the more effective the wash action. It has been found that a side wall fabricated of sheet metal with perforated area amounting to 62% of the sidewall, and perforations individually small enough to keep laundry from spinning out through the perforations, provides a very satisfactory basket. Basket 20 is mounted for rotation on a shaft 43 (seen best in FIGS. 1 and 5) which extends vertically from the machinery compartment 18 through divider Wall 14 and into the imperforate wash compartment. This shaft fits within a suitable tubular support member 44. This support member is fixed to the horizontal wall 14 to secure the member 44 against rotation or axial displacement, and, of course, to prevent leakage from the tub 16. Within the support member at each opposed end is a sleeve bearing member 45, preferably of the oil-impregnated type, Which serves to rotatably support the shaft within the tube.

FIG. 5 illustrates the connection of the basket shaft 43 to the basket 20 and the mounting of this connection on the shaft support member 44. At its upper end, shaft 43 has diametrically opposite parallel flats. These flats extend along the shaft for approximately one to one and a half inches. Along this length, the shaft is threaded as indicated by the numeral 43.1. The indented flats form at their lower extent, horizontally-extending, circular segmental shoulders 43.2. Below these shoulders the shaft is notched annularly at 43.3 to receive a split ring 46. This ring positions below it a support ring or hearing 47 Which in turn rests on the upper surface of the upper of the support bearings 45. It can be seen in FIG. 5 that the bearing 45 protrudes slightly above the adjacent upper edge of the support member 44. This protrusion provides a bearing surface for the supporting ring 47. The support member 44, as previously described, is secured stationarily to the cabinet structure at the compartment divider 14 and is secured against movement axially or radially. Thus, bearing 45 furnishes a stationary resting plate for the support ring 47 which in turn defines the downward extent of movement of the drive shaft 43 by its position below the split ring. The shaft 43 is capable of limited upwardaxial travel as will be explained more fully later.

The basket 20 at its center includes a tubular axial support 48, Which is of suflicient diameter to fit freely about shaft support member 44 with considerable clearance. This basket support 48 at its upper end terminates in an inturned annular flange 49. Flange 49 includes at its center an opening (not shown) which matches with the shape of the shaft 43 within the extent of the indented flats and is designed to rest on shoulders 43.2. A cap nut 50 is internally tapped to tighten on the shaft threaded section 43.1 and squeeze the fiange 49 against shoulders 43.2. Thus, on rotation of shaft 43, rotational force is imparted by the indented flats above shoulders 43.2 to the flange 49, axial tubular support 48 and ultimately to the basket itself.

The water fill system for the machine (seen best in FIGS. 1, 3 and 4) includes a water inlet conduit 52 which is connected to a suitable source of fresh hot and cold inlet water by means of the usual flexible hose 54. The inlet conduit 52 optimally should extend from the external hose connection, vertically through the machinery compartment 18, divider Wall 14, and into the washing compartment to terminate at a downwardly and inwardly directed opening 56. Opening 5:: is located above the top surface of the basket and is positioned to feed inlet Water directly into the basket. Needless to say, because of the perforate character of the basket walls, the inlet water fills the washing compartment along with the basket to the required water level, as indicated by the line W.L. in FIG. 3.

For recirculating and draining Water from the washing compartment, the base of the washing compartment has a drain opening 60. Below this opening and in communication therewith is a pump 62 (shown in detail in FIG. 6). Pump 62 is of the type shown in US. Patent 2,883,843, issued to John Bochan on April 28, 1959. A pump of this type has an inlet opening and two outlet openings. In this instance, the inlet opening is coincident with drain opening 60. The first outlet opening 64 is connected to a recirculating conduit 66 which extends vertically through floor 14 and terminates at a nozzle 68 adjacent and directed toward basket 20. This nozzle 68 optimally should have its opening located a few inches outward of the basket sidewall and directed radially inwardly toward the central shaft of the basket. Vertically, this opening should be just above the center of the basket sidewall and directed substantially horizontally. An opening size for nozzle 63 which has been found advantageous is one which measures A" by 1". The second pump outlet 70 is connected to an outlet drain pipe '72 which in turn may be connected to a flexible hose for discharge to a suitable domestic drain system; for example, this hose may be adapted for attachment to the commode of a residence bathroom for drain purposes.

Pump 62 as described in the cited Bochan patent includes a reversible rotor 74 which governs the action of a flapper valve mechanism 76. According to the direction of rotation of the pump rotor, the flapper valve blocks off one outlet opening and provides communication between the inlet and the other outlet. As applied herein, the flapper valve is operative with the rotor operating in the washing direction to provide a recirculatory flow of water to the washing compartment. During the washing cycle, therefore wash Water is pumped from drain opening s2 into the recirculate outlet 64 for flow through the recirculate conduit 66 and nozzle 68 into the wash compartment. To provide a jet discharge accomplishing optimum washing action in a machine of the illustrated dimensions, the pump should have a capacity of about 12 gallons per minute with a five-foot head. When pump rotor 74 is rotated in the reverse direction, water is pumped through the drain opening, thereby draining the washing compartment.

To effect the reversible pump action and the basket drive, the washing machine utilizes as the drive motor 30, a single-speed, reversible induction motor of a type which is commonly referred to as an appliance motor. For the equipment set out, it has been found that a /6 H.P. motor is of sufficient capacity to provide the power for driving the basket and the pump. The motor 30 (seen in detail in FIG. 7) is mounted to the interior of the cabinet within the machinery compartment with its output shaft extending upwardly. This output shaft may be used to provide a directly coupled drive for the pump rotor 74. This motor shaft may also have secured thereon, a drive sheave 82. Laced about sheave 82 is a V-belt 84, well-known in the power transmisison arts. Belt 84 drives sheave 86 which is mounted upon the basket drive shaft 43 by means of a relatively thickwalled bearing 88 which allows free rotation of the sheave upon the drive shaft. It should be noted that there is a gap axially between sheave 86 and the lower support bearing 45, which as previously mentioned is secured to the support member 44. This gap allows a limited amount of travel of the shaft in an axial direction. Secured to the underside of sheave 86 is a frame 90 of sheet metal or the like, seen in plan view in FIG. 9. This frame 90 comprises an end cap housing the clutch mechanism. The mounting holes 91 accommodate the passage of machine screws 92 by which the end cap is mounted to the underside of the inner web of the drive sheave. A horizontal base plate 93 or nexus of the end cap is spaced away from the underside of the sheave parallel thereto. Between the legs of the frame, fitted coaxially about the basket drive shaft, is a compression spring 94 bottoming against the nexus 93 of the frame. The upper surface of the compression spring rests against a clutch plate 95. Clutch plate 95 is formed with the parallel sidewalls 95. The across-the-flats dimension of plate 95 between walls 96 is but slightly less than the interior dimension between the parallel depending legs 97 of the frame 90 so that the plate 95 will fit within the frame legs and will be engaged thereby during rotation of the frame. At its center, plate 95 has a central opening 93 which rotatably receives the basket drive shaft 43. Clutch plate 95 will rotate with the frame 90 on rotation of drive sheave 86 but will not transmit driving torque to the shaft 43-. Further, pressure plate 95, due to the freedom of fit between the plate and the legs of the U-frame, is free to move axially under the bias of compression spring 94. Positioned axially above clutch plate 95 is a second annular clutch plate 100 secured tightly, by suitable means such as a pressure fit or welding, to the drive shaft 43. The diameter of plate 101) is preferably slightly less than the diameter of plate 95 measured across the walls 96 thereof, and is also less than the dimension between the U-frame legs 97. This insures that plate 100 can be rotated only by the surface contact of plate 95 with no interference against legs 97. As is apparent in FIG. 7, the bottom wall of sheave bearing 88 preferably is equal to the adjacent surface of plate 100, whereupon said plate is engaged by upper and lower surfaces of substantially equal effective area.

Both clutch plates 95 and 160 may be fabricated from generally known classes of lubricant-impregnated bearing materials to alleviate the necessity of oiling or greasing.

To provide a machine which is readily portable in the sense that it may be moved from one location to another, all connections for electric power, water and drainage should be of the plug-in or quick-disconnect type. Thus, for electric power a male jack suitable for 110 volts may be used to plug into the nearest available A.C. socket. To provide inlet water for the machine, the inlet hose should have a conventional unicouple of the type wellknown in the dishwasher art applicable for connection to the faucet taps in a kitchen or preferably in a domestic bathroom. For drainage, the free end of the drain hose should be arranged for booking over the edge of a cornmode and to support the hose in this position. None of these connecting media have been shown as all are generally known and easily visualized by one versed in the art.

Before proceeding into the operation of the invention, it should be noted that the invention may be used as a general purpose small load washer or may be used as a specialty washing machine for washing diapers or the like. In either instance the operation will be virtually identical with but minor changes in cycle duration and other minor additions and/ or deletions. For example, for diaper washing, the entrance to the pump should accommodate the discharge of items of relatively large volume such as solid waste matter. For use as a general purpose washer, a screen over the pump inlet would prove necessary to keep socks and other small items from entering the pump. Other minor changes may also be visualized and will not be commented on herein. For the purpose of this description, it will be assumed that the machine is to be used as a general purpose washing machine capable of washing any items within the weight and volume capacity of the wash basket.

The cycle of operation of the machine may include any preliminary soaks or pre-washes. In any event, the main cycle of the machine with which we are concerned comprises a wash cycle which includes a wash fill, a low-speed wash and a high-speed spin. Following this wash there may be one or more rinse operations each of which includes a fill with fresh water, a slow-speed rinse and a high-speed spin. Naturally, additives such as detergent, bleach and rinse aids may be dispensed to the tub interior as desired.

The operations may be time-controlled by generally known time-cycle equipment (shown only representatively as 34). Laundry to be washed is placed in the basket, the lid is closed and the sequence control knob 36 is set to the starting position. This manipulation of the knob in generally known fashion sets timer cams (not shown) which in turn energize a conventional water inlet solenoid (not shown) to feed hot water through conduit opening 56 into the wash compartment 16. Water continues to flow in through conduit 52 for the timed period which normally will fill the wash compartment to a level approximately an inch below the top of the basket. The timer then shuts off the water and energizes drive motor 30 in the wash direction. Pump rotor 74 rotates in a direction which pivots flapper 76 to the position shown in FIG. 6 blocking drain outlet 70 and opening the recirculation outlet 64. Water is thereby ejected from nozzle 68 against the laundry in the basket 20, which as presently explained is rotating at a low speed. This recirculating water is directed through the openings in sidewall 40 and impinges directly on the laundry in the basket. This jet of water strikes the laundry radially and drives the laundry toward the centerpost 48. In the parameters illustrated, the force of the jet will be effective to maintain the laundry circulating and tumbling within the wash basket. The laundry neither wraps itself about the centerpost 48, nor stagnates against the sidewall 40. During this recirculation of liquid, the basket is being driven at low speed rotatively. This low speed is the net effect of the retative force of the drive motor on the basket less the drag imposed on the basket by the water medium in which the basket and laundry are being rotated.

The low speed of rotation is achieved through the transmission clutch mechanism as follows: It must be remembered that compartment 16 in which the basket is resting is substantially full of wash liquid. At this time, motor 30 is driving motor sheave 82 at substantially the motor synchronous speed. Through belt 84, the motor drive is transmitted to drive sheave 86 which rotates at a reduced speed. By suitable selection of pulley ratios, the speed reduction may be such that output sheave 86 is driven at a speed A that of motor sheave 82. The sheave 86 rotates relative to the basket shaft 43 without transmitting power directly thereto. As sheave 86 rotates, end cap or frame 90 rotates at the sheave speed. Clutch plate rotates at the sheave speed because of its tight radial fit within the legs 97 of frame 99. Clutch plate 95 is biased axially upwardly by the efiect of compression spring 94 into surface contact with the upper clutch plate 100 to transmit torque thereto.

As previously described, shaft 43 is firmly coupled to the wash basket 26 through the basket tube 48 and its inwardly directed flange 49. Basket 20 is resting within the mass of water in compartment 16 and it is obvious that the water mass and the radially directed jet from nozzle 68 will act on the basket and restain the rotation thereof. Lower clutch plate 95 is biased upwardly against plate Hit) by the spring 94 and will impart its rotative force to the shaft-secured plate 106. Plate 1% will thereby be biased between clutch plate 95 and the lower surface of bearing 88 and will rotate shaft 43 at a slow speed, due to slippage between the two clutch plates in amount substantially equal to the resistance of the standing water on the basket.

' During the washing operation, the basket rotates at a speed which may vary from 35 to 50 rpm. The recirculating wash liquid passes through the perforate wall with sufficient force to strike the laundry and tumble the laundry. This water jet is directed radially inwardly and with the basket rotating a combination of forces is established which will generate a laundry tumbling pattern insuring that all surfaces of the laundry will frequently receive the recirculating water impact. The laundry does not adhere and cling to the centerpost due to the Water action nor cling to the basket sidewall as '2 a result of the centrifugal action of the rotating basket. The washing action resulting from basket rotation and jet action performs a thorough cleansing action on laundry in general and a particularly superior cleansing action on diapers.

When the time allotted for the Washing period has elapsed, the timer control mechanism reverses the direction of rotation of the drive motor. Reversal of the direction of the motor rotation deflects flapper '76 to open the drain outlet of the pump and to close the recirculate opening 64. Water then drains from the Wash compartment and is exhausted out the drain. With the dropping of the liquid level in the tub, the basket accelerates. After a short period of time all the standing water has been removed from the washing compartment and exhausted down the drain.

When the Water has been drained from the tub, little resistance to rotation of the basket Will be oifered by the air then surrounding the basket, the engagement of clutch plates 95 and 150 under the effort of spring 94 becomes effective to rotate the basket at speeds of from 400 to 600 r.p.m., which is sufiicient to centrifuge most of the wash liquid from the laundry. This liquid will be exhausted from the tub by the pump as previously described.

At the conclusion of the time allotted for spin, the timer will initiate the next operation of the cycle for rinse in which clean Water is fed into the tub and the basket is rotated at low speed. Following the rinse, the rinse water may be spun out in the manner described for Wash liquid. Added rinses or other variations in cyclic operation, may of course be added.

While there has been described what is at present thought to be the preferred embodiment of the invention, it will be understood that various modifications may be made therein and it is intended to cover in the appended claims all such modifications as fall Within the true spirit and scope of the invention.

What is claimed is:

l. A laundry machine comprising:

a Washing compartment having a water outlet at the base thereof,

a perforate clothes-containing basket disposed within said compartment for rotation on a vertical axis, means for filling said compartment to a washing level adjacent the top of said basket,

reversible driving means arranged to rotate said basket in either a first or a second direction at a speed suifi cient for centrifugal extraction of liquid from said clothes, pump rotatable by said driving means in each of said directions, said pump having an inlet connected to said compartment outlet and a first outlet for return of Water thereto and a second outlet for emptying said compartment, said pump being of the direction responsive type to discharge Water through one or the other of the outlets according to the direction of rotation of said driving means,

a water recirculation system communicating between said first pump outlet and said compartment to effect Water recirculation during rotation of said basket and pump in a first direction, said system including 8 a jet-producing nozzle externally of said basket below the Washing level of liquid to direct a pressure stream of water through the sidewall of said basket, and a slip clutch of predetermined uniform torque transmi sion in said driving means, whereby the resistance to rotation of said basket offered by the surrounding water and said jet impingement substantially reduces the speed of basket rotation in said first direction, said slip clutch being effective upon rotation of said basket in a second direction and the resulting emptying of said compartment by said pump, to accelerate said basket to said extraction speed.

2. A laundry machine comprising:

a washing compartment having a water outlet at the base thereof,

a perforate clothes-containing basket disposed for rotation within said compartment,

means for filling said compartment to a Washing level substantially fiiling said basket,

rcvcr his driving means arranged to rotate said basket in either a first or a second direction at a speed sufficient for centrifugal extraction of liquid from said clothes,

3. pump rotatable by said driving means in each of said directions, said pump having an inlet connected to said compartment outlet and a first outlet for return of water thereto and a second outlet for emptying said compartment, said pump being of the direction responsive type to discharge water through one or the other of the outlets according to the direction of rotation of said driving means,

a water recirculation system communicating between said first pump outlet and said compartment to effect Water recirculation during rotation of said basket and pump in a first direction, said system including a jet-producing nozzle externally of said basket below the Washing level of liquid to direct a pressure stream of water through the sidewall of said basket,

and a slip clutch of predetermined uniform torque transmission in said driving means whereby the resistance to rotation of said basket offered by the surrounding water and said jet impingement substantially reduces the speed of basket rotation in said first direction, said slip clutch being effective upon rotation of said basket in a second direction and the resulting emptying of said compartment by said pump, to accelerate said basket to said centrifugal extraction speed.

References (Cited in the file of this patent UNITED STATES PATENTS 1,474,277 Martel et al Nov. 13, 1923 1,496,644 Karasinski June 3, 1924 1,525,784 T Wiggs Feb. 10, 1925 2,264,202 Forney Nov. 25, 1941 2,634,595 Olson Apr. 14, 1953 2,933,843 Bochan Apr. 28, 1959 FOREIGN PATENTS 165,799 Switzerland Mar. 1, 1934

Claims (1)

1. A LAUNDRY MACHINE COMPRISING: A WASHING COMPARTMENT HAVING A WATER OUTLET AT THE BASE THEREOF, A PERFORATE CLOTHES-CONTAINING BASKET DISPOSED WITHIN SAID COMPARTMENT FOR ROTATION ON A VERTICAL AXIS, MEANS FOR FILLING SAID COMPARTMENT TO A WASHING LEVEL ADJACENT THE TOP OF SAID BASKET, REVERSIBLE DRIVING MEANS ARRANGED TO ROTATE SAID BASKET IN EITHER A FIRST OR A SECOND DIRECTION AT A SPEED SUFFICIENT FOR CENTRIFUGAL EXTRACTION OF LIQUID FROM SAID CLOTHES. A PUMP ROTATABLE BY SAID DRIVING MEANS IN EACH OF SAID DIRECTIONS, SAID PUMP HAVING AN INLET CONNECTED TO SAID COMPARTMENT OUTLET AND A FIRST OUTLET FOR RETURN OF WATER THERETO AND A SECOND OULET FOR EMPTYING SAID COMPARTMENT, SAID PUMP BEING OF THE DIRECTION RESPONSIVE TYPE TO DISCHARGE WATER THROUGH ONE OR THE OTHER OF THE OUTLETS ACCORDING TO THE DIRECTION OF ROTATION OF SAID DRIVING MEANS,

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