US2339345A - Laundry machine - Google Patents

Description

Jan.- 18, 19 D. MGCLEARY 2,339,345

LAUNDRY MACHINE Filed April 27, 1940 3 Sheets-Sheet 1 Y INVENTO Jan; 18, 1944. 1. MOCLEARY 2,339,345 I LAUNDRY MACHINE Filed April 27, 1940 s sheets-sheet 5 INVENTOE and the rinsing solution,

ate when desired,

Patented Jan. 18,1944

UNITED STATES PATENT OFFICE mummy Macnmn Lorin D. McCleary, Indianapolis, Ind. Application April 27, 1940, Serial No. 331,971

6 claims, (01. 08-23) My invention relates to improvements in laun dry machines, and the objects of my invention are, to provide alaundry machine that will wash, rinse and damp dry fabrics and garments, and that will supply a power drive for a rotary ironer at a convenient height from the floor, whereby the operator can be seated while attendingthe ironer;,

That will perform all the work of washing, rinsing and damp drying, except placing of the articles into the processing vessel and removing them therefrom;

That when operating as a washer and an extractor, will automatically distribute the contents of the vessel evenly therein, thereby maintaining a centrifugal balance of the vessel and its. contents:

'I'hat when operating as an extractor, will employ both the force of'gravitation and the centrifugal force of rotation, in one direction downward, thereby augmenting the effect of extracting the fluid from the fabrics, and by means of a .screen' spaced from and fixed to the inner side wall of the processing vessel, will discharge the top suds from the vessel;

That will perform all the operations of washing, rinsing and damp drying in one vessel, thereby simplifying construction, and lessening the cost of production of a machine of this class;

That can be used either where there is no water pressure supply available, or in modernized buildings;

the cost of heating water,'and in the use of soap and other solvents and materials, usedin washing: That, additional to the processing'vessel, will be equipped with a storage tank for soap water, a storage tank for rinse water, and a circulating system by means of which the washing solution can be transferred to and from the processing vessel, to thefi respec-' tive tanks, by mechanical operation without That will be economical in the use of water, in

agitating element having outwardly extending vanes, and will permit of a simplified and more substantial form-of this type of agitator, by permitting it to be statically connected with the processing vessel;

That will inclose in one combination and within one outer shell, '2. processing vessel andstorage tanks, thereby employin their weight and that of their contents as ballast to steady the machine 10 when in operation; and that will retain heat in- .this enclosure; and for economy and convenience in saving floor space.

A further object of my invention is to provide a power transmission unit in one enclosed housl5 ing, that will serve both, to revolve and to oscillate the processing vessel; and that will oscillate in a manner different from that afiected by similar mechanisms commonly in use, in the respect that the oscillation will be less uniform, and that the reverse motions will be performed at a higher' rate of speed, thereby increasing th turbulence I of the contents of the vessel.

A still further object of my invention is to provide a laundry machine of such design as will admit 01' the use of a control mechanism in which all the operations ofwashing. rinsing, damp dry-.

ing. and discharging of the. fluid from the vessels, is governed by one lever thatturns on a dial which indicates the setting of the lever for each an operation, and by this means dispenses with the I plurality of levers, handles and buttons commonly used on. washing machines, and thereby furnish additional convenience to the operator.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which-- Figure 1 is a top view of the machine, with a small area of the shell and processing vessel wall broken away, exposing some of the interior construction, including perforations in the bot- 40 tom of the processing vessel, and diagrammatically showing the disposition of the soap water tank and the rinse water tank in the machine;

Fig. 2, a vertical section on the line 22, Fig. 1,

of the entire machine, except th section of the.

'45 twin valve assembly shown which is on a vertical a iplane lying a littleback of line 22, and with the further exceptions that some of the details f of the machine, have been left whole, and part of v the screen is broken away to add clearness to the view; Fig. 3, an under view on the line 3-3, Fig. 2,

showing a portion of the power unit housing in horizontal section, and exposing some oi the Working Dar s; Fi 4. a' face view of the cam. plate removed from the machines-Fig; 5, a top no view of'a portion of the processing vessel cover,

V a frame with legs and feet for machine. Welded to the legs is the hoop 'to hoop l8; channel rod is welded to the rods 53, 53, which are mated end portion 58, of the hub of gear 51,

showing the opening in its central area, the bracket that attaches it to the main shaft, the hose funnels and the port hole lid, all other parts of the structure being removed; Fig. 6,. a face view of the control 'dial removed from th machine and enlarged; Fig. 7, the upper half of the shifting ring which has been detached and removed from the machine, and 'Fig. 8, a horizontal section on the line 8-8, Fig. 2.

Similar numerals refer to similar parts throughout the several views.

Reference is made to my co-pending application for U. S. Letters Patent, Serial No. 387,475, filed April 8, 1941, and which has since terminated in U. S. Letters Patent No. 2,314,155, March 16,

The main parts of the frame structure or .the machine consist of two channel rods which have their central portions I, 2, flattened where they' cross at the top of the machine, and their end lengths formed into horizontal sections 3, 4, 5, 5, slant sections 1, 8, 8, in,

vertical sections or legs 5, l5, l1, l8; thus forming supporting the l8, and near the floor, flat brace rods 28, 2|, 22, 23, are bolted to them with the bolts 24, 25, 25, 21.

Additional frame structure consists of cross brace 28, of channel rod that has its ends welded cross braces 28, 38, t y t have their end portions 3 I, 32, bent and rivete to the shell 33; channel rod vertical support 34, that 28, 28, and channel rod gertical support 35, that is welded to the rods 28,

The power unit housing 35, is secured to the rods 34, 35, by the bolts 31, 38, 38, 48, which hold it firmly in the machine, and its cover 4| is secured to it by the bolts 42, 42, etc.

The main shaft 43, has its upper end section 44, reduced in diameter, which turns in the ball bearing 45, that is secured to the frame with the bolts 45, 45, 45, 45, and its lower end section which also is reduced in diameter, turns in socket bearing in.bearing block 48. In preferred construction a ball bearing would be used in this l2, l3, l4, and feet I place. Four flats 48, 48, 48, 48, at relatively 90 planes,

are cut on the main shaft on which are adapted to slide clutch collars 58, 5|, that are provided with center holes 'to fit the flatted section. These collars are cushioned apart with coil spring 52. Collar 58, is provided with clutch jaws 53, 53, to the clutch jaws 54, 54, 54, 54, on gear 55. This gear is adapted to oscillate on section 41,01 the main shaft, when idling. Shaft 55, that is journaled '-in bearing block 48, has keyed to one end, has constant mesh with oscillating gear 55. The is flatted to flt-into the slot 58, provided in crank arm 58, Figs. 2, 3, that is secured thereto with the pins 5|, 5|. An end side portion of shaft away to permit the slot 58 to extend close to the axis of the shaft.

The end play of oscillator gear 55, is limited by the collar 52, and shoulder where sections 41, 48, of the main shaft join.,

Spinner gear 53 .is adapted to rotate on the main shaft when idling, and has constant mesh with spinner gear 54, that its keyed to worm shaft- '55. This shaft is journaled in bearing blocks 55, 51, 58, and has its end play limitedby the collars 58, 18, that are pinned to it. The end play of spinner gear 53,

I when it is oscillated or rotated by the main shaft. is removed control shaft has fixed 3 ing a handle 83, a pointer 84, and a lock pin 85.

oscillating gear 51, which 1 tor gear 51 and its mating oscillator gear 55. 0s-

1|, 12, respectively, and the cap and screw bolts 13, and 14, 14,respectively.

The wormwheel 15, has constant mesh with the worm'15, and is keyed to the worm wheel shaft 11, that is journaled in bearing block 18. End play of the worm wheel shaft is limited by bearing block 18,'and the collar 18, which is set on the shaft. This shaft extends outward through the shell 23, and has a groove 88,.on its end portion, that is adapted to fit a driving connection of a rotary ironer. A thick walled bushing 8|, is used in bearing block 58, which permits the worm shaft to be inserted from below when assembling the power unit. 7

On the lower side of spinner gear 83. is fixed the clutch disk 82. Integral with the clutch collar 5|, is the flange 83, on which is fixed a thickness of friction fabric 84.

Shifting ring-85, rides in an annular groove in clutch collar 58, and permits the collar to turn The upper half of the shifting ring and is shown in Fig. '7, the screw bolts attaching it to the lower section, having first been taken out. Integral with the lower half of the shifting. ring is the arm 85, bearing the cam .pin 81. J ournaled in bearing block 88, is control shaft 88, that has keyed to its inner end c'am plate 85. Figs. 2, 4, in which is provided the cam groove 8|, which is constituted of three arc sections; the inner or oscillator arc; the intermediate or neutral arc; and the outer or spinner arc; relatively of unequal radii from and concentric with the control shaft; and of two slant or shift sec-.

tions joining the arc sections Fig. 4. The function of the cam groove is to slide over the cam pin 81. causing it to move toward and from the control shaft, and to hold it m fixed positions, thereby, controlling the'functions of the clutches on the main shaft, through the linkage of the shifting ring 85, the collars 58, 5|, and the coil spring 52, Figs. 2, 4, 6. The outer end'of the to it the dial arm 82, hav- The dial arm is of spring material, and holds the lock pin pressed against the dial plate 85, or from time to time throws it into and. holds it in-the holes 81, 81, etc.', as required in the operation of the machine, as the attendant swings the arm and sets the pointer at-the positions indicated on the dial, for washing, rinsing, extractin pumping, etc. In the drawings, the dial arm is shown in vertical position with the pointer up. Ex-

. tending from the left side of the shifting ring is retaining lug 88,. that is adapted to slide in guide slot 88, provided in block I88, that is cast integral with the back wall of housing 35.

Worm wheel 15 bears crank pin I85, which turns in and drives slide block I88 in reciprocati ng motion in slot 58 provided in crank arm 85. thereby imparting oscillating motion to oscillawhen the control mechanism thrusts clutch collar 58 downward on the main shaft 43, causing the clutch jaws 53, 53, 53, 53,'to mesh with the clutch jaws 54,54, 54, 54, of oscillating gear 55. Rotary" motion is imparted to the main shaft 43, from spinner gear 53, when the control mechanism thrusts clutch collar 5 lupward on the main shaft, causing a pressure contact of friction fabric 54 on clutch facing 82 of spinner gear 53.

Cam-wheels m, I82, m, 104, I85 are fixed to the control shaft and are provided with cam:

is limited by the collar and pin H respect vely. for actuating soap water pump lift rod II I, brake push rod I I2. rinse water pump push rod I I3, soap water valve lift lever II4, Fig. 8, and rinse water valve lift lever II5, respectively.

Bracket I I6 is welded to the main frame structure already described, and welded to the vertical side of this bracket is bracket II1. Motor H8 is supported at the ends of its frame by bracket H1. The lower side of this bracket extends beyond the motor frame, forming bearing support II9. Rinse water pump I20 is provided with bracket I2I and swings on hinge joint I22 that is supported by bracket II 9 when actuater by push rod II3 that is connected by the pivot joint I23. Soap water pump I24 is provided with bracket I25, and swings on hinge joint I26 when actuated by lift rod I II that is connected to its bracket by the pivot joint I21. 7

The worm shaft 65 is connected to the motor shaft I28 by the flexible coupling I29, and keyed to the lower end of the motor shaft is drive pulley I30, which is surfaced with rubber.

Keyed to the pump drive hafts I 3I, I32 are the driven pulleys I33, I34, respectively, which.

are swung on and off of driving contact with drive pulley I30 by the rods III, I I3, respectively.

The bottom I35 of the processing vessel I36 is secured to the main shaft by the flanged collar I31, pin I38, and bolts I39, I39, and the cover I40 of the vessel is secured to the main shaft by the bracket I4I, pin I42, and bolts I43, I43.

The agitating element I44 is fixed to the processing vessel by set screw I45 that secures it to the main shaft. The screen I46, which forms an annular inside wall for holding the articles .being washed and damp dried, is spaced from and secured to the wall of the processing vessel by the studs I41, I41, etc., that are soldered to the wall and to the screen.

An annular recess I48 is provided under the bottom of the processing vessel by the sheet metal structure having a bottom I49, outer side wall I50 that is soldered to the side wall of the processing vessel, and inner side wall II, which has a turned edge I52 that is soldered to the bottom of the processing vessel. An annular line of perforations I53, I53, etc., through the bottom of the processing vessel, Fig. 1, are for draining the fluid contents of the vessel into the recess.

A drain hole is cut through the bottom of the recess structure, and spout I54 is fitted over it and soldered to the side walls and bottom of the structure surrounding the hole, thereby directing the fall of fluid from the recess I48, through the spout I54, which is provided with valve seat I55, and valve I56, to which is flxecl the stem I51, that is adapted to slide in a hole in guide block I58. Cross pin I59 is set in the valve stem, and lift lever I60 swings on the fulcrum pin ii that is set in the side wall of the spout. The

short end of lever I60 is slotted and straddles the cross pin I59, and fixed to its long end is the weight I62, thus forming a centrifugally actuated valve for draining the recess. The weight I62 is graduated to lift the combined weight of the column of water resting on the valve, the valve and valve stem, against the centrifugal force acting on the column of water, when the R. P. M. of the processing vessel is somewhat in excess of the rate'of speed at which it oscillates. When balancing the complete assembly that revolves on the main shaft 43, the weight I62 is swung outward to the limit of its motion, thereby having the assembly balanced when spinning and slightly unbalanc when oscillating or at rest.

Soldered to the frame sections 4, 6 are the funnels I63, I64, respectively, the lower ends of which project through the central opening 'intothe processing vessel, permitting the edge of the cover .to revolve freely around themwithout contact. These funnels are adapted to receive the upper ends of the pump dischargehose I66, I 61, where they normally rest for returning the soap water and the rinse water from the tanks to the processing vessel, but from where they may be removed and swung over the sink or drain, when the contents of the tanks are to be disposed of. The port hole I68 gives access to the processing vessel and is provided with a lid I69, Figs. 1, 5, that swings on hinges I10, I10, and is tightly secured to the top cover by the latch I1I, when closed.

An annular trough I 12 is provided for receiving the liquid discharged from the spout I54, which with its valve assembly is adapted to travel freely in the trough when the processing vessel revolves or oscillates. Brackets I 13, I13, etc., secure the trough firmly to the frame sections 1, 8', 9, i0.

The lower ends of the hose I66, I61 are connected to the discharge pipes I14, I 15, respectively,of the rinse water pump I20 and the soap water pump I24, respectively, and the inlet pipes I16, I11. of the pumps are connected to the rinse water tank I16 and the soap water tank I19, respectively, by the hose I80, I8I, respectively. The tanks are seated on and supported by the brace rods 20, 2I, 22, 23.

For conducting the soap water, and the rinse water from the discharge pipes I83, I82 to their respective tanks are provided the large pipe I84. that is connected to the soap water tank I19, and the large pipe I85, that is'connected to the rinse water tank I18.

Under the annular trough is provided a twin valve assembly that has a common inlet chamber I86. The upper left half of this valve chamber is .closed by the cover I81, and the upper right half is closed by the bottom of the annular trough I12, to which the flange I88 is soldered, except where the drain hole I69, Fig. 8, is cut through the bottom of th trough. Valve I90, which opens to discharge the soap water, is actuated by cam I09 and lift lever II 4, Figs. 2, 8; and valve I9 I which opens to discharge the rinse water, is actuated by cam H0 and lift lever H5; and they drop back into their seats when the cams permit the lift levers to fall.

A brake shoe I91, of flexible substance, is mounted on a wide, flat spring I92-that is bolted to the housing 36 with the screw bolts I98. The

spring which normally curves downward at its detached end has been bent upward by the cam rod II 2, causing a pressure of the shoe on the bottom of the processing vessel, as shown in Fig. 2; the cam rod being adapted to slide in guide holes in brackets I93, I94, when actuated by the cam I01, or by the reaction of the spring. In the general design of this machine, the power unit, motor, pumps, cam rods and frame work that support them below the control shaft, all lie in one central plane, leaving the space at each side of this plane, enclosed by the shell available for tanks. The tanks are shaped to conform to these two spaces and are disposed as shown in Figs. 1, 2.

From the foregoing, it will appear clear that the main shaft, processing vessel, screen, agitamain. shaft turns; and at this point itwill be assasw noted, that the cam plate and five cam wheels :which' are set on the control shaft, govern all operations of the machine in fixed coordination,

' as the dial pointer is turned from time to time 1 and set in each of the seven positions on the dial.

that direct the attendant in operating the machine; and by observing the relation of the dial pointer to the. cams,it will be seen that when the pointer is at Put in and remove clothes, -the oscillator ciutchand the spinner clutch are neutral; the soap water pump, and the rinse water pump are at rest; the brake is on; and the soap water valve, and the rinse water valve are closed; that when the pointer is at Wash, the oscillator clutch is in mesh; the spinner clutch is neutral; the brake is open; both pumps are at rest; and the soap water valve, and the rinse water valve, are closed; that when the dial is set at Extract soap water, the oscillator clutch is neutral; thespinner clutch is on; the brake is open; the soap water valve is open; the rinse water valve is closed; and the pumps are at rest; that when the pointer is at Pump rinse water and rinse, the

oscillator clutch is in mesh; the spinner clutch is neutral; the brake is open; the soap water pump is at rest;'the rinse water pump is in drive contact; and the soap water valve, and the rinse water valve are closed; that when, the pointer is at Extract rinse water, th spinner clutch isv acting; the oscillator clutch is neutral; the brake is open; the rinse water valve is open; the soap water valve are closed; and that when the pointer thatwhen the pointer is at Pump soap water, the, oscillator clutch, and the spinner clutch are neutral; the brake is on; the soap water pump is in drive contact; the rinse water pump is at rest; and th soap water valve, and the rinse water valve is closed; and that when the pointer is at Pump rinse.water, the oscillator clutch, and the spinner clutch, are neutral; the brake is on; the rins waterpump is in drive contact; the

soap water pump is at rest; and the soap water valve, andthe rinse water valve are closed. I

From the operations just described, it will be noted that inshiiting for changing the motion of the processing-vessel, from oscillating to rotating, or vice versa, thev brake is automatically applied during the shifting interval.

In operation, my laundry machine functions as follows: It is assumed that the pointer 94, is

iating speed, centrifugal force acting on the weight I62, opens the centrifugal valve I90, while centrifugal force imparted to the contents of the vessel, causes its liquid contents to rise on the side wall of the vessel, forming an inverted air cone in the upper central space of the vessel, while the fluid contents are discharged through the perforations I63, I 53,-etc., in the bottom of the vessel, into the annular recess I48, thence through the spout I54, the annular trough I12, discharge pipe I83, tank pipe I84, and into soap water tank I19. The agitating action that preceded the extracting action, distributed the fabrlcs evenly in the vessel, and the extracting action that followed forcedand held them against the lower portion of the screen, thereby obstructing rapid fiow of the liquid contents through this part of the screen, and causing it to fiow through the screen above the fabrics, and down through the space between the screen and wall of the vessel; while the suds floating on the surfac was thrown outward against the wall of the vessel and carried down with the flow of soap water.

The pointer is next set at Pump rinse water and rinse, which again sets the processing vessel to oscillating, while simultaneously, the rinse water pump, pumps the water from the rinse water tank, through its discharge hose I66, and th hose funnel I63, into the processing vessel; during which interval, the clothes have been rinsed. The pointer is then set at Extract rinse water," which changes the motion of the processing vessel to rotating. The process of extracting the rinse water is the same as that of extracting the soap water, except that rinse water valve l9l, Figs. 2, 8, is opened, and the water'is conducted through discharge pipe I82, and tank pipe rinsed and extracted in the same manner, except, that since the soap water will have been dischargedinto' the soap water tank, after washing the first batch, it will be necessary to first set set at Put in and remove clothes," where it is v always left after finishing a washing; and that the power has been turned on the motor and that the working parts of the power unit are idling.

. water from its tank.

The lid I69, is now swung open, and a batch of clothes and the washing solution are put in the vessel, which can be filled as high as the set screw I45, in the agitator. The dial pointer.94,-;

is then set at Wash, which sets the processing vessel in oscillating motion, agitating the conwater, by inserting the supply hose into the pipe.

In case, piped water pressure is not available, the tank can be filled by inserting a funnel into the 'inlet pipe, to receive the water poured from a vessel. After the batch of clothes has been washed, the pointer is set at "Extract soap water," which changes the motion of the processing .vessel to rotating. When it has attained a speed of rotation somewhat in excess of its oscilthe pointer at Pump soap water," which will set the soap water pump in operation, and pump the soap water back into the processing vessel, lilsliollgh the discharge hose I61 and the funnel 1 When the last batch of clothes has been put through the machine, the end of the soap water hose is removed from its funnel and swung over the sink or drain, and the pointer is then set at Pump soap water, which discharges the soap the processing vessel and the rinse water tank are filled as when-starting to wash the first batch of clothes.

What I claim is: 1'. In a laundry machine comprising a, vessel forcontaining liquid and fabrics to be washed,

.- rinsed and damp-dried therein, an agitating element provided within said vessel, said vessel being rotatably mounted on a vertical axis, means fordischarging the liquid from said vessel, a trough disposed below and near the periphery of said vessel and adapted to receive the liquid discharged from said vessel, a tank for wash liquid 1 a motor, a driving mechanism including clutch means intermediate the said motor and the said vessel. for actuating said agitating element and for revolving said vessel, a control shaft bearing cam means and an operating handle for selectively interlocking said driving mechanism with said agitating element to actuate said agitating element to wash the fabrics, and for selectively interlocking said driving mechanism with said vessel to revolve said vessel to expel the liquid from said fabrics and to discharge the liquid from said vessel, and to coordinately actuate said selective conducting means to direct the liquid into either of said tanks.

2. A laundry machine comprising a tub mounted to be rotatable about a vertical axis and having a'fluid retaining side wall and floor; a foraminated wall around and spaced inwardly from the side wall of the tub and held in fixed relation thereto; and means turning said tub relation thereto; and means turning said tub about its axis selectively ina spinning or oscillatory manner; a fluid collecting channel carried by the tub and extending annularly around a peripheral portion of said tub floor; said floor being arranged to permit fluid entering between said tub and foraminous walls to flow into said channel; an annular trough and shiftable par- .allel to said axis fixed in position under said channel; a fluid discharge valve in said channel in the path of said trough and shiftable parallel to sa d axis; and weight and lever means autoabout its axis selectively in a spinning or oscillatory manner; said tub-and foraminous walls being respectively frusto-conical in shape'with their major diameters at the tub floor; said ioraminous wall terminatinglwith its top edge below the top of the tub wallto leave a substantially unobstructed annular opening therebetween for foraminous wall overflow of fluid and soap suds; and said tub floor being provided with fluid discharge means around its peripheral portion between said tub and foraminous walls.

3. A laundry machine comprising a tub mounted to be rotatable about a vertical axis and having a fluid retaining side wall and floor; a foraminated wall around and spaced inwardly from the side wall of the tub and held in fixed relation thereto; and means turning said tub about its axis selectively in a spinning or oscillatory manner; a fluid collecting channel carried by the tub and extending annularly around a peripheral portion of said tub floor; said floor being arranged to permit fluid entering between said tub and foraminous walls to flow into said channel; a fluid discharge valve in said channel; and weight and lever nleansfor opening said valve actuated by centrifugal force created through a predetermined speed of turning oi said tub. I

4. A laundry machine comprising a tub mounted to be rotatable about a vertical axis and having a fluid retaining side wall and floor; a foraminated wall around and spaced inwardly from the side wall of the tub and held in flxed matically opening said valve upon said tub reaching a predeterminedspinning speed.

5. A laundry machine comprising a tub rotatably mounted to spin about its vertical axis and having a fluid-tight side wall; means for sp nning the tub; a foraminous wall within the tub spaced inwardly from said side wall infixed relation thereto, thereby defining an annular chamber between the two walls; and means for discharging fluid from said chamber upon said 4 tub reaching a predetermined spinning speed;

said means comprising a fluid collecting channel below thetub floor and around its peripheral portion; a valve in said channel normally seat-- ing in the direction of fluid flow therepast; a weight mounted to travel with said tub; lever means interconnecting the weight and the valve, said weight being shiftable by centrifugal force whereby said valve may be lifted from its seat against fluid pressure thereover; and a fluid collecting trough fixed in position relative tosaid tub and in the path of the discharge of said valve.

6. A laundry machine comprising a vessel for containing liquid and fabrics to be washed, rinsed, and damp-dried therein; a. liquid receiving chamber around the periphery of and carried by the vessel; a foraminous wall between the vessel and said chamber fixed in relation theretoand serving to retain-said fabrics within the vessel and permit passage of liquids from the vessel to said chamber; said vessel being rotatably mounted on a verticalv axis; a driving motor; driving mechanism between-the motor and the vessel; means incorporated in said mechanism for selective unidirectional and oscil latory driving of the vessel; a centrifugally operable discharge valve normally seating in the direction of fluid flow therepast carried by said chamber and actuated to open position only upon said vessel reaching a predetermined speed of unidirectional spinning; weight means responsive to centrifugal force to open said valve in opposition to fluid pressures thereon; and means for controlling said mechanism.

. LORIN'D. McCLEARY.

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