US1452096A - Washing and drying machine - Google Patents

Description

Apr. 17, 1923 H. B. ROSS WASHING AND DRYING MACHINE 3 sheetssheet l Filed May 15 i IORNEYS Apr, l?, H923.

. l H. B. Ross I lWSHING AND DRYIIG MACHINE Filed May l5 1921 3 Sheets-Sheet 2 WN m. Vf. mw

Filed May 13 1921 l 5 .Sheets-Sheet Ww?, J hlm mwa v0a o o o O y @M o w o M 0 ..1 ,1. 0 .0 E 6 $3. D mj o 6 o o h M. O Mm w `w n M 0 o 6 o V M115 7 M Avu,` 4@ M V y 7 2 34 7. w 9 JZ Y J .a M 0 ik, 6 EN 04 06 2o l@ ,www o q O7 o s Mw o ,fa w 0 6 Q 6 nm M 2 INVENTOR ATTORNEYS enema apa ia; '1923.

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HARRY B. ROSS, OF DENVER, COLORADO, ASSIGNOR TO THE FJORD COMPANY, F DENVER, COLORADO, ACORPORATION OF COLORADO.

WASHING .AND DRYING- MACHINE.

ppllcation led May 13, 1921. Serial No.,469,198.

- To all whom 'it m ay concern: i

Be it known that I; HARRY B. Ross, a citizen of the United States, residing at Denver,

` in the county of Denver and State of Colorado, have invented a new and Improved lVashing and Drying Machine, of which the following is a specifica/tion.

My invention has for its object to provid a combined fabric washing and drying machine which is so arranged that the fabrics may be washed, rinsed and drled without re-y moving them from the ,receptacle in which they are placed for treatment; another object is to provide such a machine in which the change from the washing action to the drying action is effected by a'single movement or manipulation of the operator to unmesh. gearing; again it is an object of the invention to provide a machine of the character stated wherein the driving mechanism is connected with the driven parts by a system of belting and gearing with clutch members'so arranged that the change from washing to drying action and back again can be donc by a manipulation of the single controlling part without the necessity of stopping the driving motor and, when Such control-ling part is moved to change from a drying to a washing action, the driving belt will be positively shifted to operative position' and, when changed from a washing to a drying action, the belt will be shifted by spring force. i

Another object of the invention is to provide a fabric washing and drying machine with all the power producing and transmitting parts attached to a frame superimposed on a laundry tub or tank of the" common With other objects in view which will be hereinafter clear to those skilled in the art, the invention furthermore resides in those novel features of construction, combination and arrangement of parts, all of which will be first fully described and then be s ecifically pointed out in the appended c aims,

invention also provides an improved' reference being had to the accompanying drawings, in which:

Figure 1 is a central vertical longitudinal section of my invention showing the same mounted on a stationary laundry tub, the motor and some of the parts being shown in elevation.

Figure 2 isa plan view of the invention.

Figure 3 is a central vertical section (parts being in elevation) taken on a plane at right angles to that of Figure l.

Figure 4 is a detail vertical section and part elevation showingfthe automatic belt shifter in the positionrit assumes when the swinging frame is elevated to permit the springs to function.

Figures 5 and 6 are detail vertical sections illustrating the action of the vacuum cup members. e,

Figure 7 is a detail View hereinafter referred to.

In the drawings in which like numerals of reference designate like parts in all of the figures, l designates the tub or tank which, 4in practice, may be the ordinary galvanized iron'laundry tub. These tubs are usually provided with a slight flange or bead 2 at their bottom and in order to form a base to sustain the tub in place on a stationary laundry tub 7 6, I provide a pair of beams 3 having diagonal cross slots 5 to fit the lower edge of the tub l with a wedging action, the beams 3 being drawn together to effect this wedging action by cross bolts 4 and the beams 3 are also cut out at 75 to fit over the edge of the tub 76, when the apparatus is to be located on the same. i

6 is a cross plate of metal beneath the bottom of the tub 1 which is recessed into the beams 3 and has a hole 7 for the nut 9 at the lower end of the central shaft or support 8. The shaft or support 8 is securely fastened to the bottom ofthe tub l by nuts 9 and washer l0 to effect a water tight joint and it extends up above the top ofthe tub and is reduced in diameter to form an end 11 which projects .into a socket in the plate 35 of the base 32 of the frame which carries-the motor 33 and the power transmitting elements. i.

The reduced portion 11 of the shaft 8 forms, with the remainder of the shaft, a

-shoulderjon which is carried a ball race late 12 for the ball bearings 3 interposed Between the plate 12 and the bearing plug 14 of. the pipe 15 which carries the perforated drum in which the fabric is placed for treatment.

The pipe 15 is securely fastened the pipe 15 by sui-table screws 18 o r otherwise so as to turn with. the pipe and 19 is a second pulley located beneath the pulley 17 and turning loosely on the pipe 15, the pulley 19 being provided with a friction surface 21 to engage the plate clutch 22 which is mounted on the pipe 15 and is capable of swivelling on the same, the plate clutch 22 being slidably keyed (see Figure 7) to the shaft 15 and held pressed against the friction surface 21 of the pulley 19 by a spring 23, one end of which is fastened to the plate 22 and the other end is fastened to a collar` 24 secured to the pipe 15 by a set screw or, if desired, the plate clutch 22 may be loose 0n the pipe 15 (see Figure 1) j and caused to turn with it through the spring connection 23 with the collar 24, the spring 23 in that case being also a torsion spring. The perforated c linder or drum 1s composed of a double ayer of cross boards 27 which form the bottom and a rim 26 which forms the top, the bottom and rim being filling purposes, the hose being provided with a suitable hook 31 by which the end of the hose may be held at a level above the top of the tub 1 to retain the water in the tub, when the hose is. not connected with a source of pressure supply.

32 designates the frame which supports the motor and driving mechanism, the

frame 32 being fastened to the top edge of the tub 1 byl suitableclamps 73. The frame to the bottom 27 of the perforated drum or cylinder--v shaft 48 to slide up and down on it in a 7 manner presently more clearly explained.

The frame 32 also includes the side plates 34 and cross plate 35 that connects the side y plates 34 together, the plate 35 having a. bearing recess for the upper end of the shaft i portion 11 and is provided with oil leads 41 from the lubricant chamber 42 located betweeny the bearing blocks 36 in which the worm shaft 37 is journaled, the Worm shaft 37 carries the worm 38 between the bearings 36 to mesh with the Worm gear 59 on the crank shaft 58. I

The bearings 36 are provided with lubricant ducts 39 which4 communicate with the .interior of the ear housing 54, the latte`r being carried y the pivoted control frame 53 which also is provided with the bearings 66 for the crank shaft 58.

40 is an oil pan beneath the worm 38 for the collection of lubricant toinsure the efficient lubrication of the worm.

The motor 33 is preferably of the enclosed waterproof type and has its shaft 43 projected into the gear box 46, which is mounted on the frame plate 35 and the shaft 43 of the motor is connected to the Worm shaft 37 by a suitable universal joint 44.

45 is a beveled pinion keyed to the worm ing with a beveled gear., 49 on the shaft 48, whereby motion may be A shaft 37 and mes around either the pulley 19 or 17 according 1 to the elevation of the pulley 51.

55 is a cross plate connecting the arms 53 ofthe ivoted control frame, the arms 53 being pivoted at 57 to the frame 32, the cross bar 55 beingprovided with a convenient handle 56.

The control frame 53 is designed to be held down with the gear 59 in mesh with thel Worm 38 by pivot bolts and winged nuts 70 and 72 that engage slotted lugs 71 on the frame 53;

By loosening the winged nuts 72 and swinging the bolts clear of the lugs 71, this connection can be released so that the pivoted frame may be swung up from the full line position shown in Figure 1 to the dotted line position there shown.

60 designates the cranks on the crank shaft 58 to which the reciprocating rods 62 are pivotally fastened at 61, the rods 62 swinging loosely on their pivots and carrying the recante rubber vacuum cups 65 which are attached to the lower ends of thev rods 62.

This is accomplished by means of the frame` 68 which engages the top and bottom of the pulley 51 and isicarried by rods 67 that are ressed upwardly by a spring 69 to shift the Ibelt from the pulley 19 to the pulley` 17 and that are depressed to eil'ect an opposite shifting of the belt by the en agement of the heads of the rods 67 with t e frame 53 when it descends.

By referrin to Figure 3 of the drawings, the position o the parts is shown when the frame 53 has depressed the rod 67 and the belt is then on the pulley 19, while 'Figure' 4'v shows the position of the parts with the frame 53 raised to permit the springs 69 to function, to thereby raise the pulley 51 to bring the belt 52 onto the pulley 17.

78 is the socket plug to which the terminal ends of the electric cord 80 connect and 79 is the circuit controlling switch to which the cords 78 lead and continuing from the switch,

' thexcords 80 electrically connect the circuit with the motor 33 in the usual manner.

As the electrical connections, per se, form y. no part of the presen-t invention, further discussion of the same is believed to be unnecessary.

In order to protect the belt and pulleys, a. suitable shield 81 is provided to embrace the pulleys and belt, as best indicated in Figure 1 of the drawings.

In the practical use of my invention, the frame 53 is released and lifted up by the handle 56 to the dotted line position shown in Figure 1, the cups 64-65 will then rest on or directly over the front cross bars 82 of the frame 32. This exposes a large area through which the clothes may be inserted into the cylinder 25.

The clothes are thoroughly soaked and put into the cylinder and equally distributed as nearly as possible. The hose 30 is then attached to a hot water faucet and the tub..1 filled with water to a level about up to the bottom of the rim 26 or the end of the hose 30 may be held above the top of the tub 1` and water may be poured directly into the tub 1, if desired.

The water level should not be above the bottom edge of the rim 26 so that the cups 64, when at the upper limit of their stroke will be out of the water and thus enable air to flow in the cups at the end of the up 'stroke of the plunger rod 62.

After the Water has been brought to the y proper level, the frame 53 is again lowered slide freely up and locked in place by the winged nuts and bolts 72-70.

The cups 64 are then set straight down into the cylinder 25 on top of the clothes. The electric switch 79 isthen turned to start the motor 33, assuming that the socket plug 77 has been screwed into an ordinary electric light socket.

When the motor is started,

through 'the belt 52 drives the loose pulley M19, thereby imparting a slow rotary motion to the perforated cylin'der 25 which vcontains the clothes to bring them at intervals under the vacuum' cups 64-65. This operation is continued from lifteen to thirty minutes as -may .be required to wash the clothes properly.

Having effected the washing action for the required period of time, the motor 33 is stopped and the water is drained from the tub 1 by lowering the hose 30 to bring its end below the' 'level' of the tub or, if it is desired to -save .the water, the water may be drained into another receptacle and heated to keep the suds warm for the next operation. y

Having drained the soapy water from the tub, clear warm rinsing water is introduced into the tub totake the place of the soapy water removed and the motor is again started. After a fewmonients action, the soapy water isworkedf'out of the clothes and then the water is drained off' from the tub as before and more rinsing water can be letin and drained off, etc., etc., as required to effeet a thorough rinsing of the clothes. Cold water is then let into thetub 1 in place of thevwarm rinsing water and bluing water is n it directlyl drives the worm 38 through the universal rlhe pulley 51 llilO poured into the tub 1 between the periphery of the cylinder 25 and the wall of the tub l and allowed to disseminate through the clothes from the perforations ofthe cylinder. This water is then drawn off.

Having prepared the clothes as above described, the nextstep in the operation is the freeing of the clothes from the water and this is accomplished by raising the frame 53 to the dottedv positionshown .in Figure 1, which automatically causes the belt to be shifted from the pulley 19 onto the pulley 17, which pulley 17 is directly connected to the pipe 15and hence the motor will impart a very rapid rotation to the pelrforatedl sleeve 25 and the wateris removed from the clothes by centrifugal force.

It is, of course. understood that the motor is of such design as to impart the required BSO speedl of rotation to the cylinder for this purpose.

It should, of course, be understood that -while the frame 53 is down, the motor is turned on to st'art the rotation of the cylinder 25 for thhe drying purpose and the speed quickly picks up as the belt shifts from pulley 19 to pulley 17, when the frame 53 is raised to the dotted position shown in Figure 1. l

The clothes with the Water soaked into them are gradually forced outwardly by centrifugal force until the clothes encounter the perforated cylindrical wall 25, where plete dryness for ironing is required, the

' drying action is continued to from ten to fifteen minutes as may be required.

The motor is then stopped and the clothes removed from the machine without the necessity of having the clothes handled from the time they were put into the receptacle to be .washed until they are ready to be removed in the dry condition.

From the foregoing description, it will be observed that by my construction of washing and drying machine, all-operations from washing and drying are effected in the same tub or tank without the necessity of changing the position of the clothes in respect to the machine; the soapy water drawn oi from the tub may be reheated while the machine is performing further operations and hence loss of time is avoided; no physical effort is required in changing from washing to drying, other than the simple raising and lowering of the light frame 53, the use of wringers requiring considerable manual effort being avoided. l

It will be observed that my invention provides a very compact and convenient apparatus thatcan be manufactured at a minimum cost and all driving mechanism may be disconnected or disassocia-ted from the tub and cylinder 25 by simply loosening the clamp screws 73 and raising the frame 32 with its carried parts olf from the tank; thus, when it is necessary to transport the apparatus from one place to another, it can be done in two sections and thus t-he load lightened.

Attention is also called to the fact that A the perforated drying cylinder axle has supdle and the perforated dr' ing cylinder journals on radial. bearings w ich are under water and' without other lubrication, which wouldeifect the Water in contact with the clothes.

The low center of U'ravity and the flexible metal tub or tank o sets vibrations of unbalanced centrifugal drying cylinder.

It will further be observed that adequate provision is made for the lubrication of the gears and bearings of the driving mechanism. They may be packed with a hard lubricant and not require attention for a considerable period of time.

Any suitable material'may be used for the various parts of the apparatus; wood for the frames 32 and 35 and for the vacuum cupI rods 62, if desired, or these parts may be made of aluminum or other light non-corrosive material.

It will also be observed that by my construction of vacuum cups, the neck of the outer metallic cups sliding' freely on the vrods 62 in cooperation with the rubber suction cups 65, allows the cups to give to tightly packed clothes or any obstruction to the stroke of the cranks; also air trapped can escape through the loose neck 63, then when the cranks are on the upward stroke, the metal cups remain down until the rubber piston cups 31 move u until'air tight connection between 65 an 64 is effected,- thereby intensifying the vacuum 4which pulls the suds through the clothes rapidly and is quite a practical improvement over the common simple vacuum cups heretofore used in Washing machines of this general rom the foregoing description taken in connection with the accompanying drawings, it is thought the complete construction, operation and advantages of m invention will be readily understood by t ose skilled in the art.

4What I claim is: 1. In a machine of the character stated, a tub a vertical standard rigidly mounted in the tub, a perforated cylinder rotatably mounted on said standard, said standard projecting above the top of said cylinder and having bearings for said cylinder, a base frame secured on the edge of said tub to project over said cylinder, a motor on said base frame and power transmitting mechanism from said motor to said cylinder.

2. In a machine of the character stated, a tub, a perforated cylinder mounted in said tub, a base frame secured on the edge of said tub to project over said cylinder, a motor o n said base frame and power transmitting mechanism from said motor to said cylinder, including high and low speed elements, a crank shaft, vacuum cup plungers carried by the cranks of said crank Shaft, a power connection between said transmitnm l :ting mechanism and said crank shaft and means operable to connect or disconnect said power connection to and from said power transmitting' mechanism to render said cup plungers active or inactive and simultaneously effect said high and low speed ele,-

ments to thereby change the speed of ro tation of said cylinder.

3.- In a machine of the class described, a tub, means for mounting said tub on a support, a perforated cylinder journaled on a vertical axis in said tub, a base frame mounted on top of said tub, a motor on said frame, a vacuum cup plunger for acting on the contents of said cylinder, means for `sustaining said plungers from said frame, power transmitting instrumentalitles connecting said motor with said tub and with said plunger, said power transmitting instrumentalities comprising a prime moving shaft, a drivingshaft for the tub, continuously actingpower transmitting connections between said driving shaft and sa-id prime moving shaft, a driving connection between said drivingshaft and Said tub, said driving connection includin shiftable devices whereby the rotation oit? said tub may be effected and discontinued at will, gear connection between said prime moving shaft and said vacuum cup plunger, and means for raising said Vacuum cup plunger and separating said gear connection to thereby discontinue the operation of said plunger.

4. -In a machine of the class described, a tub, means for mounting said tub on a support, a perforated cylinder journaled on a vertical axis in said tub, a base frame mounted on top of Said tub, a motor on said frame, a vacuum cup plunger for acting on the contents of said cylinder, means for sustaining said plunger from said frame, power transmitting instrumentalities connecting said motor with said tub and with said plungers, means for rendering said power transmitting instrumentalities inoperative on said plunger without stopping their ac'-A tion on said cylinder, and means operable on the stoppage of said plungers to increase the speed of rotation of said cylinder.

5. In a machine of the class described, a tub, means for mounting said tub on a support, a perforated cylinder journaled`on a vertical axis in `said tub, a main frame mounted on top of said tub, a motor on said frame, a vacuum cup plunger for actingon l the contents of said cylinder, means for sustaining said plunger from said frame, power 'transmitting instrumentalities connecting v, said motor with said tub andy with said plungers, means for rendering said power transmitting instrumentalities 'inoperative on said plunger without'stopping their action on said cylinder, and means operable on the'stoppage of said plungers to increase the speed of rotation of said cylinder, said last named means including a hinged subframe to carry said plungers, speed changing devices for said cylinder and -means controlled by said sub-frame for effecting the speed changes.

6. In a machine of the class described, a water reservoir, a perforated cylinder within thesame, means mountin said cylinder for rotation in said reservoir, said means comprising a standard in the reservoir, a pipe on which the cylinder is carried, bearings in the pipe and turning on the standard, a thrust bearing carried by the pipe and standard to suspend the pipe on the standard, a pulley tight on said plpe, a second pulley loose on said pipe, a friction drive plate on the pipe and connected to turn with the same and engage said loose pulley, and meansfor applying power to said pulleys to turn said pipe and cylinder. 7. In a machine of the class described, a p Water reservoir, a perforated cylinder` with- (in the same, means mounting said cylinder for rotation in said reservoir, said means comprising a standard in the reservoir, a pipe on which the cylinder is carried, bearings in the pipe and turning on the standard, a thrust bearing carried by the pipe and standard to suspend the pipe on the standard, a pulley tight on said pipe, a second pulley loose on said pipe, a friction drive plate on the pipe and connected to turn with the same and'engage said loose pulley, means for applying power'to said pulleys to turn said pipe and cylinder, said drive plate connection with said pipe comprising a collar and a coil spring on the pipe, said springbeing interposed between said collar and plate.

8. In a machine of the class described, a. Water reservoir, a perforated cylinder within the same, means mounting said cylinder for rotation in said reservoir, said means comprising a standard'in the reservoir, a pipe on which the cylinder is carried, bearings in the pipe and turning on the standard, a thrust bearing carried by the pipe and standard to suspend the pipe on the standard, a pulley tight en said pipe', a second pulley loose on said pipe, a friction drive plate on the pipe and connected to turn with the same and engage said loose pulley, means for applying power to said pulleys to turn said pipe and cylinder, said drive plate connection with said pipe comprising a collar anda coil spring on the pipe, said spring being interposed vbetween said collar and plate and connected at its end respectively to said collar and plate.

9. In a machine of the class described, a. water reservoir, a perforated cylinder with- -in the same, means mounting said cylinder for rotation in said reservoir, said means comprising a standard in the reservoir, a pipe on which the cylinder is carried, bearings in the pipe and turning on the standard, a thrust bearing carried b the pipe and standard to suspend the plpe on the standard, a pulley tight on saidpipe, a second pulley loose on said pipe, a friction drive plate on the pipe and connected to turn with the same and engage said loose pulley, means for applying power to said. pulleys to turn said plpe and cylinder, said drive plate connection with said pi e comprising a collar and a coil sprin on t e pipe, said sprinl being interposed tween said collar an plate, and anti-friction thrust bearings between the opposing faces of said pulleys.

10. In a machine f the class described, a tub, a perforated cylinder rotatable in said tub, a driving shaft for said cylinder, slow and high speed pulleys on said shaft, a motor, power transmitting mechanism between said motor and said pulleys and including a countershaft with shiftable driving pulley, a drivingbelt taking over said pulleys, a pulley shifter and means foractuating said shifter.

11. In a machine of the class described, a tub, a perforated cylinder rotatable in said tub, a driving shaft for said cylinder, slw and high speed pulleys on said shaft, a motor, power transmittin mechanism between said motor and sai pulleys and including a countershaft with shiftable drivin pulley, a driving belt taking over said pu leys, a pulley shifter, a clothes pounder, power transmitting mechanism between said motor and pounder and means foisimultaneously disconnectingsaid power transmitting mechanism from said pounder and causing a shifting of said driving ulley to thereb change the speed of said cy inder.

12. n a machine of the class described, a tub, a perforated cylinder rotatable in said tub,land a clothes pounder a driving shaft for said cylinder, slow and high speed pulleyson said shaft, a motor, power transmitting mechanism between said motor and said pulleys and including a countershaft with shiftable driving pulley, a driving belt taking over said pulleys, a pulley shifter, means for actuating said shifter, and a sup port for said motor, said power transmitting mechanism, said pounder and said shiftable pulley, and means mounting the same as unit on top of said tub.

13. In a machine of the class described,

a tub, a perforated cylinder rotatable in said tub, a driving shaft for said cylinder, slow and high speed pulleys on said shaft, a motor, wel` transmitting mechanism b'etween sald motor and said pulleys and including a countershaft with shiftable drivin pulley, a driving belt taking over said pu leys, a pulley shifter, a clothes pounder, power transmitting mechanism between said motor and pounder and means for simulvmeans for shiftin taneously disconnecting said power transmitting mechanism from said pounder and of said drivln pulley to means for rotating said cylinder, said means comprislng a support, means for mounting said support on the tub a motor and power transmittin and controllingdevices on the support, inc uding slow and high speed members carried by said cylinder, a vcountershaft driven from saidmotor, a power connection between said countershaft and said high and low speed members and including a speed changing shiftable element, and

said element.

15. In a machine of the class described wherein is provided a tub with a rotating clothes receiving cylinder within the tub; means for rotating said cylinder, said means comprising a support, a motor and power transmitting and controllin devices on the support inc uding slow and igh speed members carried by said cylinder, a countershaft driven from said motor, a power connection between said countershaft and said high and low speed members and including a speed changing shiftable element, means for shifting said e ement, said last named means comprising a hinged frame and a spring actuated shifter cooperating with said hinged frame.

16. In a machine of the class described, a tub, a cylinder rotatable in said tub to receive the clothes, vacuum cup plungers tov work the clothes in said cylinder, a hinged frame for carrying said plungers, a motor and power transmitting means between the motor and said plungers and said cylinder to operate the same, said power 'transmitting means including separable gearing composed of a relatively stationary member and a vmovable member, the latter being carried by said hinged frame operatively connected with said plungers whereby upon swinging said frame, said plungers may be rendered operative or inoperative as desired.

17. In a machine of the class described, a tub, a cylinder rotatable in said tub to receiv`e the clothes, vacuum cup plungers to work the clothes in said cylinder, a hinged frame for carrying said plungers, a motor and power transmitting means between the motor and saidplungers and said cylinder to operate the same, said power transmitting means including separable gearing composed of a relatively stationar kmember and a movablemember, the latter eing carried by said hinged frame operatively counted with said plungersl whereby upon swinging said frame, said plungers may be rendered operative or inoperative as desired, said power transmitting mechanism including fast and slow driving elements for said cylinder and means controlling said fast and slow driving element by the movement of said hinged frame..

18. In apparatus of the class described, a water reservoir, means to fill and empty the same, a perforated cylinder rotatable in said reservoir, the main frame supported on the top of said reservoir, a sub-frame hinged to sa1d main frame, a crank sha-ft journaled in bearings on said sub-frame, a gear on said crank shaft, a Worm and driving motor therefor on said main frame, said gear adapted to mesh with said worm, when said sub-frame is down, releasable means secur-v ing said sub-frame down and power transmitting connections between said motor and cylinder.

19. The combination of an ordinary laundry tub with a fixed shaft or standard, a. perforated cylinder journaled4 on said standard, a clothes working mechanism, a power applying mechanism for operating. said clothes working mechanism and rotating said cylinder, all being mounted on the tub.

20. 1n a machine of the class described, a tub, a perforated cylinder' journaled on a vertical axis in said tub, a base frame mounted over said tub, a motor on said frame, vacuum cup plungers for acting on the oontents of said cylinder, means for sustaining said plungers from said frame, and ower transmitting connections between sai( motor, said tub and said vacuum cup plungers for simultaneously rotating said tub and reciprocating said plungels.

21. In a machine of the class described, a tub, a perforated cylinder journaled on a, vertical axis in said tub, a base frame mounted over said tub, a motor on said frame, vacuum cup plun ers for acting on the contents of said cylin er, means ior sustaining said plungers from said frame power transmitting connections between said motor, said tub and said vacuum cup plungers for simultaneously rotating said tub and reciprocating said plungcrs, and means for operatively disconnecting said plungers and increasing the speed of rotation of said cylinder at the same time.

. HARRY B. ROSS.

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