US2156949A - Dishwashing machine - Google Patents

Description

May 2, 1939.

J. H. KLINGER 2,156,949

DISHWASHING MACHINE 5 Sheets-Sheet l Filed Deo. 4, 1956 May 2, 1939- J. H. KLINGER 2,156,949

DI SHWASHING MACHINE Filed Dec. 4, 1936 5 Sheets-Sheet 2 2 Z I 2 I 2.0 H

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May 2; 1939- J. H. KLINGER 2,156,949

DI SHWASHING MACHINE Filed Dec. 4, 1936 3 Sheets-Sheet 3 Can Patented May 2, 1939 UNITED STATESl PATENT ol-Fics 2,156,949 y DISHWASHING MACHINE John H. Klinger, Indianapolis, Ind. Application December 4, 1936, Serial No. 114,142

. -16 Claims. (Cl. 15-74) This invention relates to apparatus for washing dishes, cooking utensils and the like and has for one of its primary objects, the provision of means for washing dishes or utensils of varying sizes and contours. v

A further primary object is to provide mean in a dishwasher whereby each individual dish or utensil is individually received and supported and carried into and out of a'washing medium without coming into contact with other dishes or the tub of the washer. A still further primary object of the invention is to provide such a structure as will receive dishes one at a time and carry them through the washing medium or solution and carry the dish on out and deposit it on a table from which the washing medium may drain.

A still further primary object of the invention is to provide a dish washer whereby each dish may be individually subjected to some frictional wiping or scrubbing medium while the dish is being subjected to a washing fluid so that foreign matter adhering to the dish may be frictionally removed in the presence of the washing uid.

An important object also is to provide avery simple compact and easily operated mechanism having the above objectives incorporated therein. Further it is an object of my invention to provide a structure which may be readily and easily dismantled for replacements and for cleaning. An advantage of my invention is that being of a compact and light weight nature, it may be readily employed where space is at a minimum and with the greatest of convenience and ease in kitchen sinks or the like.

These and many other objects such as the.

unique new association of the various elements as set forth in the accompanying claims will become apparent to those versed in the art in the following description of one particular form of the invention as illustrated by the accompanying l drawings, in which Fig. 1 is a longitudinal vertical section through a structure embodying my invention;

Fig. 2, a top plan view with the cover in closed position;

Fig. 3, a discharge table end elevation;

Fig. 4, a vertical transverse section on the line 4-4 in Fig. 2; I

Fig. 5, a detail in vertical section on the line 5-5 in Fig. 4;

Fig. 6, a detail in section of a brush attaching means;

Fig. 7, a detail in vertical section of a dish gripping and release structure;

' Fig. 8, an end elevation of the same structure;

Fig. 9, a view on a reduced scale similar to Fig. 1, but with a different form of dish scrubber;

Fig. 10, a section on the line III--IIl in Fig.v 9 on enlarged scale;

I provide the brackets I3 and I4 which have bearings therein slotted to open from their upper sides and to receive therein the transverse shaft I5 so as to permit it to revolve freely. On this shaft I5 I iix thereto a spindle head I6 to revolubly carry a number of spindles extending radially therefrom, the number of spindles to vbe used depending upon the size of the dish washer desired and its capacity. In the form herein shown, I provide four spindles I1. As indicated in Fig. 4, the inner ends of these spindles I1 have reduced diameter portions extending through bosses on the head I6 to be secured against longitudinal displacement by lock nuts I8.

Each spindle I'I carries a driving member I9 of some nature. In the particular form shown, this member I9 is a frustum of a cone and is fixed to the spindle I1.

'Ihe bracket I4 has a horizontal bore therethrough in which is revolubly carried a shaft 20 driven by Va motor 2| mounted on the outer side of the tub I0 and having a gear reduction head 22 so that the shaft 20 which extends through the Wall of the tub I0 into the head 22 may be driven at a relatively low speed. On the inner end of this shaft 20 is fixed a driving member 23. The shaft 20 is carried by the bracket I4 at a distance below the upper shaft I5 so as to give clearance thereunder for the driving member 23. This member in the form herein shown is also a frustum of a cone. Upon turning of the shaft I5, the driving members I 9 Amay one after another be selectively brought into frictional engagement with the driving member 23 as indicated in Fig. 4 whereby upon holding the shaft I5 stationary, the respective driving member I9 may be revolved by the member 23 and thus revolve the respective spindle I1. By turning the shaft I5, that driving member I9 may be removed from influence of the member 23. In other words, the member I9 isonly revolved when the particular spindle I'I is brought around by the shaft I5 to have the two members I9 and 23 in substantial tangential contact one with the other. In order to maintain suicient friction between the two members I9 and 23 to produce the driving relation, some means may be provided for relatively adjusting the members I9 and 23 one toward the other. One such means is herein shown', Fig. 4, where a spring 24 surrounds an end of the shaft I5 between the bearing portion of the bracket I4 and a wing nut 25 on the outer end of the shaft so as to have the spring compressed between the wing nut and the face of the bracket I4 tending to pull the shaft I5 longitudinally through the bearing in the bracket I4 and thereby carry the respective driving members I9 along therewith, the member 23 being non-adjustable in this instance. Of course the face of the head I3 would serve as a stop against the other side of the bracket I4 to prevent the members I9 being carried too far.

In order to maintain the respective driving members I9 in engagement selectively with the driving member 23, I provide a stop means in association with the shaft I9 whereby the shaft I5 is rigidly maintained in each of its shifted positions for the driving transmission between the member 23 and the member I9. In the particuiar form of this stop means here shown, I

' provide a disk 26 flxed to the shaft I5 within the tub I9 adjacent the bracket I3 and form this disk 26 to have stops spaced therearound in posltions corresponding relatively with the positions of thel spindles I1. Thus I provide lugs 21 in the path of a pair of lingers 28 and 29 which are hinged to the tub I9, here shown as at the upper central portion thereof and spaced apart suiilciently as to permit one of the lugs 21 to iit snugly therebetween. Referring to Figs. 2 and 5, by pressing downwardly on the outer end of the finger 23 so as to lift its inner end, this inner end will then be lifted up out of the way of the lug 21 so that the shaft I5 may then turn and remove the driving member I9 from driving engagement with the member 23. The next member I9 is then brought into driving engagement with the member 23 by turning the shaft I5 and thus bringing the next adjacent lug 21 up under the inner end of the nger 29 to lift eifectively holds the shaft I5 in the fixed driving position. Preferably the faces of the lugs 21 are sloped so as to give a more or less wedging effect of the lug 21 between the fingers 29 and 29 to prevent any lost motion or chatter when the member 23 may be driving the member I9. In order to insure action of the lingers 2B and 29, the inner ends are preferably weighted so as to cause them to drop promptly.

The outer end of each spindle I1 is provided with some sort of a dish or utensil rubbing medium. In one form herein shown, such medium takes the form of a brush having a. head 39 detachably engaging respectively the outer ends of the spindle I1 and having relatively long bristles 3| of a pliable and not too rigid a nature. The lengths and types of bristles employed may be varied depending upon the nature of the washing required. Each spindle I1 detachably receives the head 39 of the respective brush as l indicated. One suitable means for engaging the brush with the spindle end is shown in detail in Fig. 6 wherein the brush head 39 has a centhrough this slot through the head 39 to have an end engaging over the under side of the brush head, the end being here shown as being ball shaped so that the brush head 39 will be withdrawn from the spindle upon a suiiicientpull being exerted, the spring 34 retracting into the slot along the spindle in this case..

In each case where a lug 21 of the disk 26 is engaged between the fingers 23 and 29 there will be a spindle I1 in the form herein shown pointing vertically upwardly so that the brush carried thereon will have its bristles turned upwardly and terminating in a horizontal plane, providing the tufts are all of the same length as shown in the present form. On this upper brush surface presented by the ends of the bristles 3|, the member to be washed, herein shown as a dish 35 may be laid bottom side up and preferably centered thereon. Of course in this position, the brush is not being revolved since its driving membeer I9 is far removed from the driving member 23. Now in order to retain the dish and hold it against displacement and carry it around through the tub I9, I provide a dish carrying structure which will now be described.

The spindle head I6 is employed to carry a. number of arms 36, one for each spindle I1, and spaced therebetween. These arms 36 are fixed in relation to the spindle head I6 and revolve therewith when the shaft I5 is turned. 0n the outer` end of each fixed arm 36 is hingedly mounted a swinging arm 31 properly formed to permit its being swung up around over and down onto a brush next adjacent to its supporting ann 36. On the side of the swinging arm 31 yapproaching the brush is mounted a vacuum cup 38. Now by swinging the -arm 31 around and over the brush, the vacuum cup 36 may be pressed downwardly against the dish lying on the brush so that the air within the cup 39 may be expelled and the cup 36 thereby grip the dish under the inuence of atmospheric pressure without. The dish thus gripped will then be controlled entirelyin its travel by the movement of the arm 31.

Having thus engaged a dish on the brush as above indicated, the outer end of the linger 23 is pushed downwardly to release the lug 21 and the arm 31 is gripped and pulled around clockwise, Fig. 1, to have its outer end carrying the vacuum cup 38 carried down and into the tub I9 sufficiently far to have the next lug 21 come up between the fingers 23 and 29 and thus prevent further travel. In order to maintain the dish 35 in frictional contact with the bristles 3| of the brush, the arm 31 is formed to be pressed inwardly toward the brush bristles by some en gagement with the inner face of the curved wall of the tub I9 after the arm 31 has entered within the tub. In the form herein shown, I provide a roller 39 which enters within a groove 49 around the tub and bears against the outer portion of the groove. Thus by varying the contour of the outer portion of the groove 49, the pressure exerted on the dish against the brush bristles may be controlled.

In the position in which the dish 35 was left in the operation above described, the dish itself still remained above the level of a washing solution in` the tub I9 and remained stationary. Likewise the brush against which the dish was carried remained stationary. The next operation would be to again place a dish on the upwardly extending brush then presented beyond the one carrying the rst named dish and repeat the operation as above described, whereupon the first named dish 35 would be carried around to the extreme lowervposition as indicated in Fig.

1 wherein the driving member I8 is engaged with the member 23 to cause the brush to revolve and thereby rub around the inner side of the dish so as to effectively contact the entire surface thereof. The tub is preferably filled with some suitable washing solution to a level approaching or even above the brush head 30. The dish being scrubbed cannot recede from the brush to any great extent or at least any more than the resilience of the vacuum cup 38 will permit since the arm 31 cannot swing away from the brush by reason of its roller 39 bearing inthe bottom of the groove 40.

The scrubbing operation may be continued as long as desired, the motor 2| normally running constantly. 'I'he length of time isv determined by the rapidity of movement of each brush from its upper position. When the scrubbing operation is continued for the desired length of time, the brush carrying spindles are given another turn, 90 in the present form, wherein the dish is carried up out of the washing solution to the left hand side of the tub I0 to remain in a draining position with the brush then being stationary. The oor of the tub l0 is carried around and out horizontally on. the left hand side with the groove 40 being continued also but having a relatively greater depth across the floor portion. When the dish 35 is in the left hand elevated position, Fig. l, as just described, it will have a tendency through its own weight and through the weight of the arm 31 to drop away from the brush bristles, but this travel is limited by the under side of the dish being in contact with the floor of the tub l0, the arm being within the groove 40 and free from any support at its outer end. The next 90 travel of the system will cause the dish 35 under influence of gravity to slide on around and onto the horizontal floor extending from the tub. The vacuum cup 38 still remains securely attached to the under side of the dish so that the weight of the arm hanging A therefrom in this position will cause the dish to gradually right itself and be turned face upwardly. Now as the arm 31 approaches its extreme outer limit of travel within the groove 40, the vacuum cup 38 is released from the underside of the dish so as to leave that dish deposited on the floor or table.

I accomplish this release by destroying the vacuum within the cup 38 through admittance of atmospheric air. To do s0, I provide a projection 4| extending into the groove 40 and in the path of the outer end of a rocker 42 which is rockably supported by the arm 31 to extend around thereunder and pivotally engage a valve 43 which is conical in shape and enters a conical bore in the vacuum cup 38. Thus as the outer end of the rocker 42 strikes the projection 4|, it is rocked to pull the plug 43 out of the bore in the cup 38 and thus permit the entrance of air, whereupon the vacuum cup 38 becomes detached from the dish and the entire arm is permitted to drop within the groove 40 and be retracted and carried around upwardly to the solid line position as indicated ready for the next dish loading operation on the upwardly extending brush. In

order to insure a seating of the plug 43 in the tending from the arm 31. The stop 4| may prefy erablybe made to incline away from the ap-r proaching rocker 42 so that pressure thereagainst by the end of the rocker will tend to urge the arm 31 downwardly to insure quick release of the cup 38 from the dish. It is contemplatedA that in the operation of the structure described,

a dirty dish will be placed upon ,the upper brush and a clean dish removed from the table on the open position, the cover may serve as a dirty dish receptacle.

Another form of the dish rubbing medium other than the brush 3| is shown in Figs. 9-12. This form has some advantages over thebrush type.A In utilizing this form, each spindley |1 is provided with a cross section to receive a sleeve 50 in such manner that the sleeve may be pressed over the outer end of the spindle and be driven by the spindle. In the form herein shown, the cross section of the spindle is square and the sleeve 50 is correspondingly square to fit thereover.

On the outer end of the sleeve 50 are hinged one or morearms here shown as two in number, the arms being hinged in such manner that they may swing outwardly away from the sleeve 50 but 4are revolved with the sleeve without lagging therebehind. Secured to the under or outer sides of these arms 5|, is the rubbing medium. The essential characteristics of the medium in this form are that the medium be flexible and also have sucient weight whereby as the spindle I1 may be revolved when in its lower position,'the medium 52 will tend to adapt itself very closely to the contour ofthe dish or utensil thereunder and at the same time, under the action of centrifugal force, cause the medium to spread outwardly over the periphery of the dish or utensil, the medium being of such nature that it will assume this position even in the presence of and while submerged in the washing fluid. One particular medium which operates very satisfactorily is the circular disc of a chain mesh fabric of metal. 'I'his fabric is preferably made up from a plurality of interlocking rings of metal such as is indicated in Figs. 11 and l2. Where the rings are interlocked as the drawings show, the rings will be inclined to the surface of the dish or utensil over which the fabric is being revolved so that the individual links of the fabric present corners or rounded portions which actually scrape on and rub over the article being washed. In this manner, there is provided a. plurality of scraping and rubbing edges tending to free the utensil from foreign matter adhering thereto such as dried egg, dried gravy, andthe like. Where this chain mesh is made up of links of relatively small diameter, the external diameter being in the neighborhood of one-eighth of an inch or less, an extremely effective operation,

is secured.

The disk of fabric 52 is loosely attached to the two arms 5| as indicated in Figs. 10-12 by having the fabric clipped to the arms in such manner that the fabric will always be extended along the arms. As the arms sweep through their planes including the sleeve 50, the fabric can not wad up at the center but is held in the extended position, the outer periphery of which position depends upon the degree of outward swinging of these arms, and this degree is of course determined by the shape of the vessel into which the arms are inserted. By means of the use of this particular structure, drinkingglasses rand the like may be washed perfectly accurately as well as rplates and more shallow articles. A further advantage is to be seen that in merely by slipping the sleeve 50 oiI of the spindle Il, the fabric 52 may be removed for cleansing and drying if desired. In any event the fabric may be replaced readily.

While I have herein shown and described my invention in the one particular form, it is obvious that structural variations may be employed Without departing from the spirit of the invention and I, therefore, do not desire to be limited to thatprecise form beyond the limitations as may be imposed by the following claims.

I claim:

1. In a dishwashing machine, a tub, a dish rubbing member located in the tub, means located in the tub comprising a swinging arm and a vacuum cup carried `by the arm for. gripping and holding a dish in juxtaposition with said dish rubbing member, means comprising a rotatable arm to which the swinging arm is hinged for shifting said dish gripping means relative to said tub, means for shifting the rubbing member in fixed relation to the gripping means, a spindle carrying the dish rubbing member, a cone gear on the spindle and a rotating cone gear intermittently rotating the spindle cone gear by movement of the spindle past the rotating cone gear.

2. In adishwashing machine, a tub, a dish rubbing member located in the tub, means 1ocated in the tub comprising a swinging arm and a vacuum cup carried by the arm for gripping and holding a dish in juxtaposition with said dish rubbing member, means comprising a rotatable arm to which the swinging arm is hinged for shifting said dish gripping means relative to said tub, means for shifting the rubbing member in fixed relation to the gripping means, a spindle carrying 'the dish rubbing member, a cone gear on the spindle and a rotating cio-ne gear intermittently rotating the spindle cone gear by movement of the spindle past the rotating cone gear, means for actuating the last cone gear, and positioning mechanism.'y selectively retaining in said spindle position with the spindle cone gear engaging the rotating cone gear.

3. In a dishwashing machine, a tub, a dish rubbing member and means located in the tub comprising a swinging arm and a vacuum cup carried by the arm. for gripping and holding a dish in juxtaposition with said dish rubbing member, and means for shifting said dish gripping means relative to said tub, means for shifting said dish rubbing member relative to said tub but in fixed position relative to the gripping means, and means for creating relative movement between said dish rubbing member and said gripping means.

4. In a dishwashing machine, a tub, a dish rubbing 7Inember and means located in the tub*-` 1 to swing into said tub, a dish rubbing member comprising a swinging arm and a vacuum cup carried by the arm for gripping and holding a dish in juxtaposition with Said dish rubbing member, and means comprising a rotatable spindle head carrying an arm to which the swinging arm is hinged for shifting said dish gripping means relative to said tub, means for shifting said dish rubbing membery relative to said tub but in fixed position relative to the gripping means comprising a spindle carried by said spin-l dle head to which the rubbing member is attached, and means for creating relative movement between said dish rubbing member and said gripping means, and mechanism actuating said last means in a selected position only of the shif ing of said dish rubbing member.

5. In a dishwashing machine, a tub, an arm mounted to swing into said tub, a dish engaging member carried by the arm comprising a vacuum cup carried by an arm hinged to the first arm, a spindle mounted to swing into said tub, a dish. rubbing member carried by the spindle, a. gear wheel also carried by the spindle, said dish engaging member being mounted to enable the dish to contact said rubbing member, and a rotating gear wheel in the tub to engage said rst mentioned gear wheel and to revolve said Vrubbing member when swung into said tub to the position of the rotating gear wheel whereby said dish may be frictionally rubbed thereby in the presence of a washing fluid within the tub.

6. In a dishwashing machine, a tub, a shaft mounted transversely in the tub, a disk on the shaft having spaced apart lugs, an arm mounted on the shaft to swing into said tub, a dish engaging member carried by the arm comprising a vacuum cup carried by an arm hinged to the first arm, a spindle mounted on the shaft to swing into said tub, a dish rubbing member carried by the spindle, a gear wheel also carried by the spindle, said dish engaging member being mounted to enable the dish to contact said rubbing member, and a rotating gear wheel in the tub to engage said first mentioned gear wheel and to revolve said rubbing member when swung into said tub to the position of the rotating gear wheel whereby said dish may be frictionally rubbed whereby in the presence of a washing fluid within the tub, and releasable means for engaging a lug on the disk for maintaining said spindle and said engaging member in selected positions relative to said tub.

7. In a dishwashing machine, a tub, a post mounted to swing into said tub, a dish engaging member carried by the post, a spindle mounted to swing into said tub, a dish rubbing member carried by the spindle, said dish engaging member being mounted to enable the dish to contact said rubbing member, and means to revolve said rubbing member when swung into said tub whereby said dish may be frictionally rubbed thereby in the presence of a washing fluid within the tub, said tub having an arcuate floor curving downwardly from a dish entering side around and up to continue laterally to form a washed dish receiving table, and said dish engaging member being on an arm hinged to said post and mounted thereby to have its free end enter said tub ahead of its hinged end whereby said arm may drop outwardly froml said rubbing member upon swinging up to leave the tub and carry its engaged dish out onto said table.

8. In a dishwashing machine, a tub, a post mounted to swing into said tub, a dish engaging member carried by the post, a spindle mounted carriedby the spindle, said dish engaging member bein'gfmounted to enable the dish to contact said rubbing inember, and means to revolve said rubbingI member when swung into said l tub whereby said dish may be frictionally rubbed thereby in the presence of a washing fluid within the tub, said tub having an arcuate fioor curving downwardly from a dish entering side around tub ahead of its hinged end whereby said arm v may drop outwardly from said-rubbing member upon swinging up to leave the tub and carry its engaged dish out onto said table, and means releasing said engaging means from the dish at said table.

9. In a dishwashing machine, a tub having a concave floor one side of which extends outwardly into a washed dish receiving table, a rotating means in the tub having a hinged arm traversing the curved portion of the oor and then swinging onto the washed dish receiving table, a dish engaging member on the arm comprising a iiexible vacuum cup, a valve controlling and normally closing a passage into the cup, a rocker arm connected with the valve, and means on the table for actuating the arm to actuate the valve by the travel of the arm onto the table.

10. In a dishwashing machine, a tub having a concave oor one side of which extends outwardly into a washed dish receiving table, a rotating means in the tub having a hinged arm traversing the curved portion of the floor and then moving onto the washed dish receiving table, a dish engaging member on the arm, a dish release member also on the arm, and means on the table for actuating the release member and releasing the dish by the travel of the arm on the table.

11. In a dishwashing machine, a tub, an arm mounted to swing into said tub, a dish engaging member carried bythe arm comprising a vacuum cup carried by an arm hingedl to the first arm, a spindle mounted to swing into said tub, a dish rubbing member carried by the spindle, a gear wheel also carried by the spindle, said dish engaging member being mounted to enable the dish to contact said rubbing member, and a rotating gear wheel in the tub to engage said rst mentioned gear wheel and to revolve said rubbing member when swung into said tub to the position of the rotating gear wheel whereby said dish may be frictionally rubbed thereby in the presence of a washing fluid within the tub, said first mentioned arm and said spindle being mounted from the same head to swing in unison maintaining xed positions relative to each other.

12. In a dishwashing machine, a tub, an assembly including at least one dish carrying and one rubbing member and a rotatable spindle carrying each rubbing member, the assembly being revolubly carried by the tub to turn about a horizontal axis, a rotating beveled wheel driving member presented adjacent said assembly, and a beveled wheel carried by the spindle for each rubbing member and placed to be selectively moved into and out of engagement with said driving member upon turning of the assembly.

13. In a dishwashing machine, a tub, a horizontal shaft centrally of the tub, an assembly including at least one dish carrying and one rubbing member, the assembly being revolubly carried by the horizontal shaft, a disk with marginal lugs on said shaft, a driving member presented adjacent said assembly, and a driven member carried by the assembly for each rubbing member and placed to be selectively shifted into and outof engagement with said driving member upon turning of the assembly, and interlocking means comprising plates for engaging the lugsr on the disk successively for releasably maintaining the shaft in any one position of said engagement. l

14. In a dishwashing machina-a tub-an assembly including at least one dish engaging and` one rubbing member, the assembly being revolu` bly carried by the tub to turn about a horizontal axis, a driving member presented adjacent said assembly, and a driven member carried by the assembly for each rubbing member and placed to be selectively shifted into and out of engagement with said driving member upon turning of the assembly, said dish engaging member being shiftable toward and away from said rubbing member, and guide means carried by the tub for controlling the travel of the engaging member in relation to said rubbing member as said assembly is turned to carry the engaging member through the tub, the oor of said tub curving downwardly from one side and around, up and out laterally on the other side to form a dish receiving table, said guide means comprising a channel with a cam shaped bottom to contact and shift the engaging member, said guide means being carried out with said table topermit the dish carried by said engaging means to be carriedv out onto the table. y

15. In a dishwashing machine, a tub, an assembly including at least one dish engaging and one rubbing member, the assembly being revolubly carried by the tub to turn about a horizontal axis, a driving member presented adjacent said assembly, and a driven member carried by the assembly for eachvru'bbing member and placed to be selectively shifted into and out of engagement with said driving member upon turning of the assembly,l said dish engaging member being shiftable toward and away from said rubbing member, and guide means carried by the tub for controlling the travel of the engaging'member in relation to said rubbing member as said assembly is turned to carry the engaging member through the tub, the floor of said tub curving downwardly from one side and around, up and out laterally on the other side to form a dish receiving table, said guide means being carried out with said table to permit the dish carried by said engaging means to be carried out onto the table, said dish engaging means comprising a vacuum cup carried by a swingable arm in said assembly, and means for releasing said cup from its car-` ried dish as the dish is placed on said table.

16. In a dishwashing machine, a tub having substantially a semi-cylindrical door, a spider mounted across the tub to turn on a horizontal axis, at least one spindle revolubly carried by the spider, a dish rubbing member carried with the spindle to be swung through the tub by turning the spider, at least one post carried by the spider, a dish engaging vacuum cup, an arm hinged to the post to carry the cup over the rubbing member, a driving member, a driven member on the spindle positioned to be swung into and out of engagement with the driving member as the spider is turned, stop means selectively retaining the. spider in position to retain the driving and driven members in interengaging relation so as to revolve said spindle, said arm bearing against said tub floor in travelling thereover, a valve in said cup, and valve operating means.

JOHN H; mJINGER.

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