US2493944A - Fiber scouring and washing bowl - Google Patents

Description

1950 E. H. BROOKS, SR

FIBER SCOURING AND WASHING BOWL 2 Sheets-Sheet 1 Filed July 12, 1946 Inventor fawara fi 57'00/6, Jr.

Jan. 10, 1950 BROOKS, 5 2,493,944

FIBER SCOURING AND WASHING BOWL Filed July 12, 1946 I 2 Sheets-Sheet 2 g gcoc lacuna aonco linhoo {IIOBOQ I'OOD locum:

I |Iooo oo nuoono I Hue/liar fd'ward 15. firooka, Jr.

eon W 3m Patented Jan. 10, 1950 FIBER SGOURING; AND BQWL Edward H'. Brooks, Sr., Portland, Maine, assignor of one-half to Edward H. Brooks, J12, Portland, and one-half to, Elton, H-L Thompson, Cape Elizabeth, Maine Application, July 12, 1946;. Serial No. 683,204;

9 Claims". (01. 68-43 This invention relates to improvements in fibre scouring and washing bowls or tanks and relates to. similar subject matter of my copending applications Serial No. 694,991; 683,203; and 696,294.

An object of the invention is to provide an improved fibre scouring and washing tank in which one or more scouring and washing mechanisms will be incorporated for removing dirt and foreign matter from fibre stock after the-same has been previously placed in a feed box to receive a preliminary combing prior to its being washed.

Another object of the invention is to provide an improved fibre scouring and washing bowl which will include a perforated rotating washer or suction roll and an adjacent small breaker roll for moving the fiber from one scouring and washing bowl to the next bowl, together with a separation plate under said suction roll for separating and receiving the dirt as it is washed from the fiber as it is acted upon by'the action of the rapidly rotating perforated washer or suction roll, and a hinged pressure plate for controlling and relieving the pressure from excessive water or stock on the suction roll.

A further object of the invention is to pro-- vide an improved fibre scouring and washing mechanism which will create a pin point penetration of the stock being washed by forcing'thewashing fluid through the stock in process, thoroughly impregnating th fibre with washingfiuid before entry into the next scouring pit or bowl". Another object of the invention is to provide an improved fibre stock scouring and washing tank. in which a plurality 'ofseparate mechanisms are received andseparately operated, said apparatus being highly efficient in operation, and

relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In. the accompanying drawings which form a part. of this application,

Figure l is a longitudinal sectional view taken through the improved fibre scouring and washing bowl or tank;

Figure 2 is a plan view looking down on the improved fibre scouring or washing bowl or tank;

Figure 3 is a front elevation of one of the improved washer or suction rolls;

Figure 4 is an end view of one of the washer or suction rolls, and

Figure 5 is an enlarged end view of one of the pressure plates hinged to a hood overlying a suction roll.

Like characters ofreference" are used through- 2 out the following specificationand the accompanying; drawings to designate corresponding parts;

In carrying out the invention, there is provided a substantially rectangular shaped tank I having a feed box or housing 2 formed on one end, and provided with; a drain cock or faucet 3- in its lower end. In the drawings, there are illustrated three complete sets of scouring and washing mechanisms, each: of which areidentical in form, and are arranged so that the fibre stock when it is thrown-intothe washing: tank passes successively through the three washing mechanisms to thoroughly and efficiently scour and wash the dirt and other foreign matter from the fibre stock.

A plurality of transversely extending" shafts 4,25 and 6 are mounted in the bearing members or brackets T, 8 and 9 respectively, on the upper edges" of the opposite sides 10- and H of the tank I.

The large washer or suction rolls l2, l3 and M are fixed respectively to the shafts 1, 8 and 9 to rotate therewith; and are formed with the plurality of rows of transversely extendin apertures I5- formed through their peripheral surface, and are also provided with the radially extendin rows of apertures 16 onto their opposite ends, as clearly illustrated in Figures 1 and 4 of the drawings. These large washer or suction rolls I2, ['3 and [4' are positioned so that they will extend below the surface'of the water or washing fluid H- in the tank land will be separately driven by means of separate motors or other suitable" devices (not shown).

The three shafts i8; 9 and 20 are mounted transversely of the tank I and are supported in the bearings 21, 22' and 23 secured to the opposite sides I 0" and I I of said tank, and are disposed between the adjacent' large rolls [2, I 3 and I4. The small breaker rolls 24, 2-5 and 26- are' mounted respectively uponthe shafts l8, l9 and 20 and are driven by separate driving means (not shown) The covers 21 will be supported above the'large washer or' suction: rolls in spaced relation thereto; and will be extended outwardly away' from said rolls ontheir outer side portions, as viewed" from the" f-ront of the apparatus. Similarly formed small covers 28 will-- likewise be supported above the'breaker rolls"; Ziand 26- in spaced relation and will" preventfi the: water or washing fluid l1 from the" tank litrom splashing and" spilling from the tank duringlthe scouring and washing operations:

4 3 The transversely extending weighted pressure plates or bafiles 29 are hinged at 30 to the under surfaces of the covers 27 so that pressure from excessive water or stock on the suction rolls will be relieved as they are rotated rapidly in a counter-clockwis direction.

The separation plates 3! are .disposedtransversely of the tank and are arcuate in shape to form the scouring pits 32 immediately below and spaced from the large Washer or suction rolls;

I2, 13 and [4. The forward edges of the separa tion plates are bent downwardly 'a's'at'33 to form an inlet for the fibre stock. as .it advances from;

the inlet end of the tank to; the discharge end thereof. The opposite end of :the scouring pit 32 is provided with a downwardly angled apron portion 34 which tends to direct the dirt. and.

other foreign matter scoured from thefibre stock downwardly to be deposited in the bottomfof the tank I.

The fibre stock 35 is fed into the front end ofthe tank I by suitable pickup means and enters the space between the depending portion 33 of the scouring pit 32 and passes between said suction ,roll and pit. and on the top, of the water or cleaning fluid I'l Where the breaker roll 24 which 1 is perforated creates a pin pointpenetration on the stock, forcingthe washing-fluid through the stock and process, thoroughly impregnating the same with washing fluid before its entry into the nextscourin pit which is separatelydriven.

The large-washer or scouring rolls which are perforated as before mentioned, pick up the water,

fluid and'air and provide asqueezing action upon the fibre stock which releases the dirt and foreign matter from the stock as it passes under the suction rolls over the last hump of the scouring pit.. v V; I

The suction rolls I2 are positioned above the arcuate portion 32 of the said separation plate or baili 3|, thereby forming a confined zone or scourin pit. The cover 2'! is supported above the'roll' I2, but spaced therefrom. 'Upon rotation of the relatively large roll 12 which is perforated and which is partially submerged in the fluid in the tank -the fluid flow- (both air and liquid) about the roll creates. a. suction due to thebaliling effects of the separation plate 3| and the cover 21.

The-pressure plate 29 is hinged to the cover 21 for movement similar to a pendulum in motion; This plate 29 is at the egress side of the scouring pit (defined by the roll l2 and baille 3i) i and is therefore at the relatively high pressure position in the system. The relatively low pressure portion is at the opposite side of the relatively large roll 12 wherein the fibre is introduced.

When the pressure of the egress side reaches an undesired value, the hinged plate 29 will be actuated similar to a pendulum and increase the throat diameter for the swirling fluid (air and washing fluid), thereby relieving th undesired 1 high pressure.

The fibre is carriedacross the tank dueto the direction of rotation of the suction roll I 2 and tion of the tank. Thev breaker roll 24 which is perforated has an air flow setup and directed- (by the proximity to the cover 28) so as to urge the fibre across the tank; The perforations-in the M1124 assist in conveying the fibre-and also setting up the air flow. A quantity of Washingfiuid will be received in the perforations, to be hurled violently against the flowing fibre, thereby causing liquid to penetrate the fibre in extremely small but numerous quantities. The penetration is similar to inserting a plurality of pins in the moving fibre. However, Washing of the fibre by this penetration is effected. This penetration also assists in breaking lumps of the fibre as they pass beneath the breaker rolls.

Due to the buoyant nature of the fibre, and also due to the urging across the top of the tank in stages "(by means of the rolls), the said fibre will be maintained at the upper portion or on 1 top of the fluid level Within the tank. Certain 15' parent that there has been provided a highly eflicient form of fibre stock scouring and washing apparatus which will include one or more separate scourin and washin bowls in which identical apparatus is received. It will befurther understood that any number of these scouring and washing pits or bowls may be employed depending upon how thoroughly it is desired to clean the fibre stock before it is finally removed and transported to a drying chamber. The action upon the fibre stock is such thatthe stock is temporarily supported in the scouring pit while the same is thoroughly impregnated and squeezed before it is passed along to th next bowl for a similar action and treatment.

While the preferred embodiment of the instant invention has been illustrated and described,

it will be understood that it is not intended to 'for partial submersion in washing fluid, an arcuate baille secured to said tank and disposed in spaced relation below said roll forming a scouring chamber, a cover secured to said tank and spaced from said roll, a weighted pressure plate suspended from said cover being pivoted thereto and terminating adjacent the scouring chamber, a rotatable perforated roll mounted transversely of said tank adjacent said apertured roll, and means for rotating said rolls.

2. A fibre scouring and washing device including a tank adapted to receive washing fluid, an

apertured roll mounted transversely of said tank for pivotal submersion in washing fluid, an arouate baille secured to said tank having an apron disposed in spaced relation below said roll, a perforated roll mounted transversely of said tank adjacent said apertured roll, covers secured to said tank for said suction roll and for said perforated roll, a depending pressure plate suspended from said cover overlying and spaced from the apron,

and means for rotating said rolls.

3. A fibre scouring and washing device including a tank adapted to receive washing fluid, an apertured roll journaled transversely of said tank adapted to be partially submerged in washing fluid, an arcuate baffle secured to said tank below; said roll forming a scouring chamber, a cover secured to said tank and overlying said roll, a

p1ate pivotally secured to said cover, and means for rotating said roll.

4. In a fibre scouring and washing device, a tank for retaining fluid, an apertured roll journaled transversely of said tank, means for rotating said roll, an arcuate baflie secured to said tank and spaced from said roll forming a scouring chamber, an arcuate cover secured to said tank and overlying the roll for confining fluid set in motion by the rotation of said roll, said cover being spaced from said baiiie and forming ingress and egress zones of said scouring chamber, and means pivotally associated with said cover for regulating the size of the egress zone.

5. In a fibre scouring and washing device, a tank for retaining fluid, an apertured roll journaled transversely of said tank, means for rotating said roll, an arcuate baffle secured to said tank and spaced from said roll forming a scouring chamber, an arcuate cover secured to said tank and overlying the roll for confining fluid set in motion by the rotation of said roll, said cover being spaced from said bafiie and forming ingress and egress zones of said scouring cham ber, and means pivotally associated with said cover for regulating the size of the egress zone, said means comprising a plate.

6. In a fibre scouring and washing device, a tank for retaining fluid, an apertured roll, journaled transversely of said tank, means for rotating said roll, an arcuate baflie secured to said tank and spaced from said roll forming a scouring chamber, an arcuate cover secured to said tank and overlying the roll for confining fluid set in motion by the rotation of said r011, said cover being spaced from said baflie and forming ingress and egress zones of said scouring chamber, and means pivotally associated with said cover for regulating the size of the egress zone, a perforated roll journaled on said tank, means for rotating said perforated roll.

"I. In a fibre scouring and washing device, a tank for retaining fluid, an apertured roll journaled transversely of said tank, means for rotating said roll, an arcuate bafiie secured to said tank and spaced from said roll forming a scouring chamber, an arcuate cover secured to said tank and overlying the roll for confining fluid set in motion by the rotation of said roll, said cover being spaced from said baffle and forming ingress and egress zones of said scouring chamber, and means pivotally associated with said cover for regulating the size of the egress zone, a perforated roll journaled on said tank, means for rotating said perforated roll, a second cover secured to said tank and spaced from said perforated roll to confine fluid set in motion by the rotation of the perforated roll.

8. In a fibre scouring and washing device, a tank for retaining fluid, an apertured roll journaled transversely of said tank, means for rotating said roll, an arcuate baflle secured to said tank and spaced from said roll forming a scouring chamber, an arcuate cover secured to said tank and overlying the roll for confining fluid set in motion by the rotation of said roll, said cover being spaced from said baifle and forming ingress and egress zones of said scouring chamber, and means pivotally associated, with said cover for regulating the size of the egress zone, a perforated roll journaled on said tank, means for rotating said perforated roll, a second cover secured to said tank and spaced from said perforated roll to confine fluid set in motion by the rotation of the perforated roll, said second cover having an end terminating adjacent the egress zone.

9. The combination of claim 4 and said baflie being arcuate to conform with the shape of the apertured roll, said cover being arcuate to conform substantially to the configuration of the apertured roll, an apron on said baflie for directing refuse toward the interior of the tank.

EDWARD H. BROOKS, SR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 22,461 Swigert Dec. 28, 1858 195,096 Cummings Sept. 1, 1877 663,452 Maertens Dec. 11, 1900 960,473 Winant June 7, 1910

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