Field of the invention:
The present invention generally relates to a semi-automatic washing machine with three tubs provision and a front storage facility, wherein two tubs, having different volumes, are provisioned with washing/rinsing functions and third tub is for spinning/drying function. Said semi-automatic washing machine is characterized in washing clothes, may be simultaneously, in two separate tubs selectively, mainly towards ensuring more hygiene during washing process, selecting different washing media (hot/cold water or variable concentrations therein), consuming minimum water and electricity in the washing process.
Background and object of the invention:
Conventionally most commonly used washing machines are Semi Automatic Washing Machines. It’s partially automatic, so it requires some manual efforts too. The user has to add water before washing clothes & drain it once wash cycle gets over. Semi-automatic washing machines are always top loading, and have two separate tubs – for washing and drying/spinning. Almost all models of semi-automatic washing machines can be moved easily.
With improving life-style and concerns about health, hygiene and resource (like electricity, water, time etc.), consumers are always looking for such washing machine which functions more effectively, have simple functions towards low maintenance, and involves least initial as well as operational costs. At the same, the users look for more and more options in the washing machine towards best possible utilization of the machine with respect to their individual needs and choices.
For an example, one user may require to wash and dry cloths of her three months old baby very frequently. Therefore, she might not be utilizing a conventional washing machine with two tubs very effectively due to larger size of the washing tub, which requires enough water and detergents, involving multiple rinsing cycles and more consumption of electricity therein. Washing of baby’s cloths also require proper washing separately in hygienic conditions, wherein user ideally wishes to avoid washing such cloths with the cloths of other family members.
In another example, the user wishes to wash the undergarments separately in the conventional two-tub washing machine, for which the user has to run the washing tub separately. Two-tub semi-automatic washing machine does not provide any customized option for soaking the undergarments separately within the washing machine and thereafter washing it separately and simultaneously with other cloths. Thus such separate washing requires more consumption of water, time, electricity and efforts of the user.
The present invention is intended to provide a novel semi-automatic washing machine, comprising of two washing tubs and one drying tub, which not only has more functional and advantageous features, but it also removes several limitations of the conventional two-tub semi-automatic washing machines, particularly with regard to increasing needs of the user towards ensuring better hygiene and resource management.
Prime object of the instant invention is to provide a semi-automatic washing machine, comprising of three tubs, wherein each of said tubs are capable of being operated independently and simultaneously.
Another object of the invention is to provide a semi-automatic top loading washing machine wherein out of three tubs provisioned in said washing machine, two tubs are equipped with wash-functions and third one is equipped with spin or dry function.
Another object of the invention is to provide a semi-automatic top loading washing machine wherein each of three tubs provisioned in the said washing machine are provided with separate drive-motors of suitable capacity and constructional features towards optimum functioning of the respective tub, consuming least possible time and electricity.
Another object of the invention is to provide a semi-automatic top loading washing machine wherein said semi-automatic washing machine is provisioned with effective function controller unit, wherein said controller unit supports simultaneous functioning of at least two tubs towards washing and spinning/drying of cloths.
Another object of the invention is to provide a semi-automatic top loading washing machine wherein said controller-unit comprises of micro-controller and/or logic based circuitry and assembly of electronic components and sensors towards timer-selection, buzzer provisions and running/stopping of drive-motor(s) of selected individual or multiple functional tubs.
Another object of the invention is to provide a semi-automatic top loading washing machine wherein said washing machine is so structured that it comprises of a front storage compartment for storing needful goods like detergent powder, brush, scrubber, whitener box etc.
Another object of the invention is to provide a semi-automatic top loading washing machine, wherein said washing machine is so structured to comprise of a soap-holder position, at the top surface of the washing machine, in between the top openings of said three tubs therein, particularly towards holding certain goods like soap or whitener or scrubber, generally during the process of washing cloths and using the said washing machine.
Description of the invention:
The present disclosure is generally about a novel top loading semi-automatic washing machine, which comprises of two wash-tubs and one Spin-tub and wherein the said washing machine is customized for simultaneous and independent functioning of said three tubs.
The top loading semi-automatic washing machines mainly comprise of:
• Big Wash-tub;
• Small Wash-tub;
• Spin-tub;
• Electric motor and shaft assembly with the washing-rinsing components of the big wash-tub;
• Electric motor and shaft assembly with the washing-rinsing components of the small wash-tub;
• Electric motor and shaft assembly with the drying-spinning components of the Spin-tub;
• Electro-mechanical Control panel, comprising of separate regulator-cum-controller provisions for three tubs towards their optionally selected independent functions;
• Water inlet channel with option selector towards selecting the wash-tub;
• Drainage channel, integrated among three tubs of the said semi-automatic washing machine and positioned within the body of the said washing machine;
• At least one storage box, provisioned within the outer body or cabinet of the said semi-automatic washing machine;
• Soap-holder position at the top surface of the said semi-automatic washing machine, located around the openings of three tubs;
Dimension of big wash-tub is sufficiently large and of the volume of any similar conventional washing machine, suitable for washing large number of cloths at a time in automatic manner. The volume of big wash-tub is sufficient enough for loading enough volume of water towards rotating/agitating and washing several cloths of various types namely, cotton, synthetic, woollen etc., under one of the provisioned rotation/agitation-modes selected, namely gentle, normal and strong. Said big wash-tub is provided with a separate driving means assembly at the bottom of the said big wash-tub, including a state-of-the art assembly of the drive-motor, vertical shaft, gear(s), bearing(s), capacitor and the base mounted pulsate/agitator of the big wash-tub. Towards effective functioning of the big wash-tub, as per the optional functional choices provisioned for the user, the control-panel of the said semi-automatic washing machine is provided with regulator-cum-control provisions, duly synchronized with the timer and buzzer facilities. The driving means assembly for the big wash-tub, is so customized that it comprises a comparatively high capacity drive-motor and its support components, capable of bearing higher load for longer duration provisioned in the control panel, without creating intolerable adverse effects therein such as temperature rise, abrasion, mechanical losses to the components of said driving means assembly etc. Functions of said driving means assembly are effectively supported with the control-cum-regulator options, provisioned for the users.
Dimension of small wash-tub is so selected that it can fulfil the limited requirements of the users towards washing of fewer number of cloths or such cloths which are of smaller sizes, namely under-garments, baby-cloths, washable nappies of baby etc. Accordingly all the components of such small wash-tub are smaller in dimension/volume, particularly in view of lesser consumption of electricity, water, detergent, operation-time etc. Provision of a small wash-tub in the instant three-tub semi automatic top loading washing machine is not only an add-on optional feature in comparison to the conventional twin-tub semi-automatic washing machines, but said small wash-tub enhances the utility of the a washing machine extraordinarily and makes it very-very useful tool in a household. This small wash-tub provision in the instant three-tub semi automatic top loading washing machine is very user friendly option for frequent washing of dirty/unhygienic cloths. It is helpful in enhancing hygiene level among the family members, and ensuring healthy clothing habits for infants/babies/children in the family, particularly without creating much botheration to mothers or the user of the said washing machine. It consumes lesser electricity and water during its function, which is also in favour of the user. In a preferred situation of washing and drying cloths using the instant three-tub semi automatic washing machine, the user can select normal tap water in the big wash-tub and can select warm/hot water in the small wash-tub for washing dirty/unhygienic cloths. The volume of small wash-tub is sufficient enough for loading enough volume of water towards rotating/agitating and washing limited number of cloths, preferably of small size, namely under-garments, baby-cloths, washable nappies of baby etc., under one of the provisioned rotation/agitation-modes selected, namely gentle, normal and strong. Said small wash-tub is provided with a separate driving means assembly at the bottom of the said small wash-tub, including a state-of-the art assembly of the drive-motor, vertical shaft, gear(s), bearing(s), capacitor and the base mounted pulsate/agitator of the small wash-tub. Towards effective functioning of the small wash-tub, as per the optional functional choices provisioned for the user, the control-panel of the said semi-automatic washing machine is provided with regulator-cum-control provisions, duly synchronized with the timer and buzzer facilities. The driving means assembly for the small wash-tub, is so customized that it comprises a low or moderate capacity drive-motor and its support components, capable of bearing higher load for longer duration provisioned in the control panel, without creating intolerable adverse effects therein such as temperature rise, abrasion, mechanical losses to the components of said driving means assembly etc. Functions of said driving means assembly are effectively supported with the control-cum-regulator options, provisioned for the users.
Dryer tub is provided with Spin-tub, assembled with suitable driving means, including separate drive motor and supporting components therein.
At the front vertical surface of the outer body or the main cabinet of the instant washing machine, there is at least one front storage box with effective closure facility is provisioned. In such front storage box(es), the user may store detergent powder box and other necessary utilities needed during washing.
The controller-cum-regulator panel of the instant three tub semi automatic washing machine is customized for controlling and regulating electrical-mechanical functions of the machine. The said controller-cum-regulator panel, made as an integrated and compact panel, is assembled at the top section of the washing machine, particularly near that edge of the top surface which remains at opposite side or the user. To operate functions of big wash-tub, small wash-tub and the Spin-tub, separate knobs are provisioned in the controller-cum-regulator panel; wherein suitable switchover knobs for operating water-inlet, drainage channels and wash/rinse selection are suitably provisioned. Various electronic and mechanical components of the controller-cum-regulator panel are so customized and integrated that at least two of the three tubs can functional simultaneously and for such functions different time durations may optionally be selected and is intimated to the user through buzzer(s).
The dimension of the outer body or the main cabinet of the instant washing machine and the construction/assembly of said washing machine are so standardized that almost all components of the said machine get accommodated effectively in view of any future servicing/repair or maintenance work. Major components of said washing machine accommodated within the outer body or the main cabinet are: big wash-tub, small wash-tub, Spin-tub, driving means and support components of all three tubs, controller-cum-regulator panel, water inlet(s) and drainage channel(s), at least one front storage facility, soap-holder position, upper lids and cover(s) for individual tubs therein. Base frame of the main cabinet is so structured that it rigidly fixes/accommodates all three-tub assemblies and also has openings/perforations to dissipate heat generated within the washing machine. The back vertical panel of said washing machine has provisions of opening(s)/perforations towards servicing and heat dissipation. Depending upon the need of the user or preference of the manufacture and towards enhancing the utility of the instant three-tub semi automatic washing machine, several variations in the overall shape, size, dimension, outer look and overall structural/constructional features may be possible in the said washing machine and its major components.
Detailed description of the invention with the help of schematic drawings:
Figure-1: Schematic isomeric view of the outer body of said top loading semi-automatic three-tub washing machine;
Figure-2: Schematic view of the front vertical body of the said three-tub washing machine;
Figure-3: Isomeric representation of the outer body of one preferred embodiment of the said top loading semi-automatic three-tub washing machine;
Figure-4: Isomeric representation of major functional components of one preferred embodiment of the said three-tub washing machine, which are operated by the user;
Figure-5: Schematic view of the inner arrangement from the back vertical side of the said three-tub washing machine;
Figure-6: Complete schematic representation of the internal arrangement of various structural and functional components of one preferred embodiment of the said top loading semi-automatic three-tub washing machine.
The illustrative drawings are labelled with certain numerals towards representing various structural/constructional features of the said top loading semi-automatic three-tub washing machine, as under:
1 Main cabinet of the said top loading semi-automatic three-tub washing machine
2 Front vertical panel of the main cabinet (1)
3 Side vertical panel of the main cabinet (1)
4 Base frame of the main cabinet (1)
4(a) Legs or wheels (optional), provisioned with the base frame (4)
5 Closable storage box, provisioned at the front vertical panel (2)
6 Top-cover of the big wash-tub (closable)
7 Top-cover of the small wash-tub (closable)
8 Top-cover of the spin-tub(closable)
9 Cover of the control panel (closable)
10 Control panel for regulating electro-mechanical functions of the said three-tub washing machine
10a Big wash-tub timer regulator
10b Big wash-tub drainage regulator
10c Small wash-tub timer regulator
10d Small wash-tub drainage regulator
10e Spin timer regulator
11 Big wash-tub
12 Small wash-tub
13 Spin-tub
14 Inner cover of the spin-tub (13)
15 Safety cover of the spin-tub (13)
16 Water inlets for supplying water to the big wash-tub (11) and small wash-tub (12), preferably in selective manner
17 Water fall attachment, provisioned within the big wash-tub (11) of one optionally preferred embodiment of the said three-tub washing machine
18 Assembly of removable lint filter and the filter frame, provisioned within the big wash-tub (11) of one optionally preferred embodiment of the said three-tub washing machine
19 Closable box cavity created near the top opening of said three tubs (11), (12) and (13), preferably as a soap-box or for storing small utility items, namely rings, watch, clips, pins, coins etc.
20 Cover of the box (19)
21 Filter frame, provisioned in an optionally chosen big wash-tub (11) of a three-tub washing machine
22 Water fall attachment(s), provisioned in an optionally chosen big wash-tub (11) of a three-tub washing machine
23 Filter, provisioned in an optionally chosen big wash-tub (11) of a three-tub washing machine
24 Impeller towards performing wash function within the big wash-tub (11)
25 Plurality of impeller wheels, assembled on the impeller (24) of the big wash-tub (11) towards performing wash function therein
26 Drive motor for operating the big wash-tub (11)
27 Gear-box, assembled below the big wash-tub (11)
28 Motor-pulley, engaged with the gear-box pulley mounted beneath the big wash-tub (11)
29 V-belt, engaging the motor-pulley (28) with the gear-box (27) of the big wash-tub (11)
30 Motor fan of the drive motor (26)
31 Small impeller of the small wash-tub (12) towards performing wash function
32 Plurality of smaller impeller wheels, assembled on the small impeller (31) of the small wash-tub (12) towards performing wash function therein
33 Drive motor for operating the small wash-tub (12)
34 Gear-box, assembled below the small wash-tub (12)
35 Motor-pulley, mounted with the gear-box (33)
36 V-belt, engaging the motor-pulley (35) with the gear-box (34) of the small wash-tub (12)
37 Large gear-box pulley mounted with the axel of gear box (34) of the small wash-tub (12) towards accommodating V-belt (36) thereto
38 Spin-tub motor
39 Spin Bellow
40 Spring pad arrangement

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
Figure-1:
Figure-1 depicts the main cabinet (1), front vertical panel (2), side vertical panel (3), the base frame (4) with legs (or wheels optionally) and the storage box (5). It also shows the top closable coverings of three tubs of the washing machine. Cover (6) of the big wash-tub, cover (7) of the small wash-tub and cover (8) of the spin-tub are so provisioned that they are three independent coverings to their respective tubs or alternatively all three covers are integrated into single top cover. A control-panel cover (9) is also depicted in Figure-1, which covers the control panel.
Figure-3:
One preferred embodiment of the said top loading semi-automatic three-tub washing machine, as shown in Figure-3, all the major components are again depicted, wherein the control panel (10) and its cover (9) are provisioned at the top surface and just opposite to the user side. It is expected that an user will operate the said washing machine from the side of front vertical panel (5).
The control panel (10) comprises of several regulators towards operating the electrical and mechanical functions of the said washing machine. Wash-timer regulator (10a) and drainage regulator (10b) are provisioned in the control panel (10) to control/operate the big wash-tub independently. Similarly, wash-timer regulator (10c) and drainage regulator (10d) are provisioned in the control panel (10) to control/operate the small wash-tub independently. For controlling/operating the spin tub, separate spin regulator knob (10e) is provided on the control panel (10). The control-panel cover (9) can be opened/closed any time while the washing machine is in operation or not.
Figure-4:
One preferred exemplary embodiment of the three-tub washing machine of the present invention is shown in Figure 4. The big wash-tub (11), small wash-tub (12) and spin-tub (13) are shown in open condition and there covers are in opened position. The top covers (6), (7) and (8), either as independent covers or as integrated single cover, are optionally hinged at one edge of the top surface of the washing machine, wherein the hinge-facilities are provisioned in the vicinity of the control panel (10). Thus the user can comfortably operated (open or close) the cover of control panel (9) as well as the hinged top cover(s) of three tubs. The storage-box (5) is aesthetically created in the proximity of the spin-tub (13) and the small wash-tub (12), wherein it has a closable door, provisioned on the front vertical panel (2) of the main cabinet (1).
A water inflow channel with two water inlets (16), preferably closable, is suitably provided at the upper part of the present washing-machine, wherein said water inlets (16) are provided at the openings of big wash-tub (11) and small wash-tub (12). Supply of water into wash-tubs (11) and (12) through single inflow channel is regulated with the help of closable water-inlets (16). Said closable water-inlets (16) are characterized in selective supply of water in one wash-tub (11) or (12) at a particular moment or supplying water in both the said wash-tubs simultaneously.
The big wash-tub (11) is preferably provided with at least one assembly of water fall attachment (17) and the Filter frame (18), mounted with detachable filter therein.
For effective and safe operation of the spin-tub (13), an inner cover (14) is provided, which is also hinged suitably near the top opening of the spin-tub. Further, the safety cover (15) is provided with the said spin-tub (13). Said inner cover (14) also gets completely covered, once the cover (8) of the spin-tub (13) is closed or placed above the said tub (13).
One small box cavity (19), along with its closable cover (20) is optionally created on the upper surface of washing machine, at the region surrounded by the openings of three tubs (11), (12) and (13). This closable box (19) also gets completely covered, once the cover (7) of the small wash-tub (12) is closed or placed above the said tub (12).
Figure-6:
Another preferred exemplary embodiment of the three-tub washing machine of the present invention is shown in Figure 6, wherein all major mechanically functional components and devices, mechanical and electrical, are shown. The internal assembly of the present three-tub washing machine, mainly comprise of three independent tub-assemblies, wherein their electrical-mechanical control/regulator is provided at one place, that is at control panel (10), and wherein further said three tub-assemblies are operated by single electric power supplied to the control panel (10) of the present three-tub washing machine.
The big wash-tub assembly comprises of the body of the big wash-tub (11); at least one attachment comprising of filter frame (21), water fall attachment (22) and lint filter (23); impeller (24) mounted with plurality of impeller-wheels (25); and a wash-tub drive mechanism. Said wash-tub drive mechanism of the big wash-tub (11) is an state of the art assembly of drive motor (26), Gear-box (27) secured below the big wash-tub (11), motor-pulley (28) engaged with the gear-box pulley mounted beneath the said wash-tub (11), V-belt (29) engaging the motor-pulley (28) with the gear-box (27) of said wash-tub (11), and a motor fan (30) of said drive motor (26).
The small wash-tub assembly comprises of the body of the small wash-tub (12); optional attachment comprising of filter frame, water fall attachment and lint filter; small impeller (31) mounted with plurality of small impeller-wheels (32); and a wash-tub drive mechanism. Said wash-tub drive mechanism of the small wash-tub (12) is an state of the art assembly of drive motor (33), Gear-box (34) secured below the small wash-tub (12), motor-pulley (35) engaged with the gear-box pulley (37) mounted beneath the said wash-tub (12), V-belt (36) engaging the motor-pulley (35) with the gear-box (34) of said wash-tub (12), and optionally a motor fan of said drive motor (33).
The spin-tub assembly mainly comprises of a spin-tub motor (38), spin bellow (39) and a spring pad arrangement (40) to support operation of loaded spin-tub.
One preferred embodiment of the instant three-tub semi automatic washing machine, having one optionally chosen and standardized set of components, their structural and constructional features and specific integration within the main cabinet of particularly selected dimension towards optionally selected/provisioned functional features is as furnished in the following table:
Construction Real wash capacity(kg) big tub 8kg
Real spin capacity(kg) 5 KG
Number of water inlet THREE
Layer of cabinet Single
Partially Transparent lid Yes


Material Pulsator PP
Inner tub PP
Cabinet PP
second wash capacity(kg) 1.5kg
Base PP
Spin Cap PP transparent
Lint filter Yes
Noise control Heavy/regular wash action settings Yes
Fabric care Soak function 2PROGRAM
Transparent lid yes with glass
Folding lid No
Castors (For Base) Yes
Ease of use Water level adjustment Yes
Water inlet selector No
Buzzer (Indicator for end of Cycle) Yes
Wash timer available
Soak Facility on Wash Timer 35min
Spin timer 5min
Color options optional
Waterfall function No
Net dimensions(mm) prefered 970*560*1030
Packing dimensions 990*570*1070
Wash tub dimensions(big) 480*470*540
Wash tub dimensions(small) 400*250*235
Dimensions Spin-tub dimensions F255×400
Gross/Net weight(Kg) 38/34.65(kg)
Water volume(Lts) 97L
Max power(Watts) 880W
Rated Wash power(Watts)Big/small tub 180w /80w
Specification Rated Spin power(Watts) 80w

Input Wash Power (Watts)Big/small tub 420W/280W
Input Spin Power(Watts) 180W
Wash capacitor(uf)Big/small tub 12µf/6µf
Spin capacitor(uf) 6µf
Spin speed(RPM for 50Hz) 1320

Water temperature available NO
Wash performance PULSATOR

Energy Efficiency(kWh/kg) 0.264
Spin efficiency
Performance Water consumption per cycle(L/kg) 336
Temperature Rise - Wash Motor (Deg C) at rated load. Specify insulation Class also. less than 90 degrees
Temperature Rise - Spin Motor ( Deg C) at rated load. Specify insulation class also less than 90 degrees

Spin Unbalance Test Ok (gms)
Balancing Ring With Brine NO
Geared Drive 1:3.7
Inner lid of Spin Basket YES
User Manual YES
Water inlet hose with Indian Rubber Connector
Accessories Power Cord Length 1.75M
Plug Top Indian 3 Pin power code (6A, 230 V)

It will be apparent to those skilled in the art that various modifications and variations can be made in the dimensional and structural arrangements within the top loading semi-automatic three-tub washing machine of the present invention, without departing from the spirit or scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims:We Claim:
1. Three tub semi-automatic washing machine with top loading provisions, wherein said washing machine comprises of big wash-tub (11), small wash-tub (12), spin tub (13), separate or optionally integrated tub-covers (6), (7) and (8), control panel (10) with cover (9), water-inlets (16), storage box (5) on the front vertical panel (2) of the main cabinet (1), and a closable box cavity (19) with its cover (20); wherein each of the wash-tubs (11) and (12) is provided with separate electrical-mechanical wash-drive arrangement towards washing and the spin-tub (13) is provided with separate electrical-mechanical spin-drive arrangement towards spinning.
2. Three tub semi-automatic washing machine, as claimed in claim 1, wherein said washing machine is characterized in operations and control of at least one of the two wash-tubs (11) and (12) selectively, wherein functioning and control of each of said two wash-tubs (11) and (12) will be independent from each other and will also be independent from the function/control of spin-tub.
3. Three tub semi-automatic washing machine, as claimed in claim 1, wherein big wash-tub (10) and small wash-tub (12) are preferably provided with closable water-inlets (16), wherein said water-inlets are part of single water-channel, provisioned at the upper region of two wash-tubs and wherein said closable water-inlets (16) are characterized in selective supply of water in one wash-tub (11) or (12) at a particular moment or supplying water in both the said wash-tubs simultaneously.
4. Three tub semi-automatic washing machine, as claimed in claim 1, wherein the control panel (10) comprises big wash-tub timer regulator (10a), big wash-tub drainage regulator (10b), small wash-tub timer regulator (10c), small wash-tub drainage regulator (10d) and the spin-tub timer regulator (10e), wherein said control panel (10), is provided with a cover (9), preferably hinged at one top edge of the said washing machine.
5. Three tub semi-automatic washing machine, as claimed in claim 1, wherein each of three tubs (11), (12) and (13) are provided with covers (6), (7) and (8) respectively, and the spin-tub (13) also comprises of inner cover (14) and safety cover (15); wherein said covers (6), (7) and (8) are characterized in their independent closing/opening action or alternatively all three covers are integrated into one large top cover, which is secured suitably, using hinges at the top section of the washing machine.
6. Three tub semi-automatic washing machine, as claimed in claim 1, wherein the big wash-tub (11) is provided with water fall attachment (17) and filter frame (18) accommodating a removable lint filter or alternatively said big wash tub (11) is provided with filter frame(s) (21), water fall attachment(s) (22), and removable lint Filter(s) (23).
7. One preferred embodiment of said three tub washing machine, as claimed in claim 1, wherein the assembly of electrical-mechanical drive arrangement towards effective washing operations in the Big wash-tub (11) comprises of:
Impeller (24) towards performing wash function within the big wash-tub (11)
Plurality of impeller wheels (25), assembled on the impeller (24) of the big wash-tub (11) towards performing wash function therein
Drive motor (26) for operating the big wash-tub (11)
Gear-box (27), assembled below the big wash-tub (11)
Motor-pulley (28), engaged with the gear-box pulley mounted beneath the big wash-tub (11)
V-belt (29), engaging the motor-pulley (28) with the gear-box (27) of the big wash-tub (11)
Motor fan (30) of the drive motor (26)

and wherein the big wash-tub timer regulator (10a) and big wash-tub drainage regulator (10b) are provided in the control panel (10).
8. One preferred embodiment of said three-tub washing machine, as claimed in claim 1, wherein the assembly of electrical-mechanical drive arrangement towards effective washing operations in the small wash-tub (12) comprises of:
Small impeller (31)
Plurality of smaller impeller wheels (32), assembled on the small impeller (31)
Drive motor (33) for operating the small wash-tub (12)
Gear-box (34), assembled below the small wash-tub (12)
Motor-pulley (35), mounted on the drive motor (33)
V-belt (36), engaging the motor-pulley (35) with the gear-box (34) of the small wash-tub (12)
Large gear-box pulley (37) mounted with the axel of gear box (34) of the small wash-tub (12) towards accommodating V-belt (36) thereto

and wherein the small wash-tub timer regulator (10c) and small wash-tub drainage regulator (10d) are provided in the control panel (10).
9. One preferred embodiment of said three tub washing machine, as claimed in claim 1, wherein the assembly of electrical-mechanical drive arrangement towards effective spin operations in the spin-tub (13) comprises of spin-tub motor (38), spin bellow (39) and the spin pad arrangement (40); wherein the Spin timer regulator (10e) is provisioned within the controller panel (10).
10. Three tub semi-automatic washing machine with top loading provisions, as claimed in claim 1, wherein one preferred embodiment of said washing machine comprises of:
Main cabinet (1) of the said top loading semi-automatic three-tub washing machine
Front vertical panel (2) of the main cabinet (1)
Side vertical panel (3) of the main cabinet (1)
Base frame (4) of the main cabinet (1)
Legs or wheels (4a) (optional), provisioned with the base frame (4)
Closable storage box (5), provisioned at the front vertical panel (2)
Top-cover (6) of the big wash-tub (11), independently closable or it is integrated with the covers (7) and (8) as a single top cover of all three tubs
Top-cover (7) of the small wash-tub (12)
Top-cover (8) of the spin-tub(13)
Closable Cover (9) of the control panel (10)
Control panel (10) for controlling and regulating electro-mechanical functions of the said three-tub washing machine
Big wash-tub timer regulator (10a)
Big wash-tub drain regulator (10b)
Small wash-tub timer regulator (10c)
Small wash-tub drain regulator (10d)
Spin timer regulator (10e)
Big wash-tub (11)
Small wash-tub (12)
Spin-tub (13)
Inner cover (14) of the spin-tub (13)
Safety cover (15) of the spin-tub (13)
Water inlets (16) for supplying water to the big wash-tub (11) and small wash-tub (12), preferably in selective manner
Closable box cavity (19) created near the top opening of said three tubs (11), (12) and (13),
Closable Cover (20) of the box (19)
Filter frame (21), provisioned in the big wash-tub (11) of a three-tub washing machine
Water fall attachment(s) (22), provisioned in an optionally chosen big wash-tub (11) of a three-tub washing machine
Filter (23), provisioned in an optionally chosen big wash-tub (11) of a three-tub washing machine
Impeller (24) towards performing wash function within the big wash-tub (11)
Plurality of impeller wheels (25), assembled on the impeller (24) of the big wash-tub (11) towards performing wash function therein
Drive motor (26) for operating the big wash-tub (11)
Gear-box (27), assembled below the big wash-tub (11)
Motor-pulley (28), engaged with the gear-box pulley mounted beneath the big wash-tub (11)
V-belt (29), engaging the motor-pulley (28) with the gear-box (27) of the big wash-tub (11)
Motor fan (30) of the drive motor (26)
Small impeller (31) of the small wash-tub (12) towards performing wash function
Plurality of smaller impeller wheels (32), assembled on the small impeller (31) of the small wash-tub (12) towards performing wash function therein
Drive motor (33) for operating the small wash-tub (12)
Gear-box (34), assembled below the small wash-tub (12)
Motor-pulley (35), engaged with the gear-box pulley mounted beneath the small wash-tub (12)
V-belt (37), engaging the motor-pulley (35) with the gear-box (34) of the small wash-tub (12)
Large gear-box pulley (37) mounted with the axel of gear box (34) of the small wash-tub (12) towards accommodating V-belt (36) thereto
Spin-tub motor (38)
Spin Bellow (39)
Spring pad arrangement (40)