US1683546A - Beating engine - Google Patents

Description

Sept. 4 1928. Q

J. D. HASKELL BEATING ENGINE Filed 18, 1926 4 Sheets-Sheet 1 J. D. HASKELL HEATING ENGINE Filed May 18, 1926 4 Shee ts-Sheet 2 W v m fifi iu Sept. 4, 192's. 1,683,546

- J. 1:) HASKELL Y BEATING ENGINE Filed May 18, 1926 4 Sfieets-Sheet 5 MIT ass W IGMMVW 16 7-70 New J. D. HASKELL BEATING ENGINE Filed y 1926 4 Sheets-Sheet 4 WIT/V553 I NVENTOR Ym TTOR/Yfyg Patented Sept. 4, 1928- unrreo STATES IZATENT OFF I C E'.

JOHN D. HASKELL, O1" FULTON, NEW YORK, ASSIGNOR TO DILTS MACHINE WORKS INCORPORATED, OF FUL'IYON, NEW YORK, A CORPORATION OF NEW YORK.

BEATING ENGINE.

Application filed May 18,

The invention relates to a beating engine for reducing paper stock to therequired consistency for manufacture into paper and involves the use of a vat or tub in which r the stock is ground, comminuted orjredared to a finely divided state and circulated through connected channels in the int by means of a rotary beater roll hav-, in peripheral vanes or fly bars movable in one of the channels of the vat in grinding co-action with an underlying relatively stationary abrasive bed or cutter blades.

The heater roll is located near the outwardly rounded rear end of the tub which together with the baokfall, rear end of the back channel, doctor and cover plate are constructed in such manner that the paper stock (and particularly the thinner stock) carried over the backfall by the beater roll will be thrown by centrifugal force directly into the back channel for returnatherethru to the front side of the beater roll channel aided by the suction produced'at the front side oi? the beater roll-thereby accelerating the flow of the stock away "from the beater roll thru the back channel and return to the front side of the beater roll, all of which greatly reduced the load upon and power required for operating the beater roll and affords a freer and more expeditions circu lation of the stock than has heretofore been practised.

The supporting shaft "for the beater roll usually extends through openings in opposite sides of the tube and is journaled in vertically movablebearings to allow for a limited vibratory or jumping movement of the beater roll incidental to its action upon materials of widely varying resistances to cutting or grinding and one of the objects of this invention is to provide a more flexible, permanent and efficient packing-box means f" sealing the shaft openings in the sides of the tub against leakage of liquid stock or water. therethru than has heretofore been practised.

Another object-is to provide a flexible doctor which will automatically maintain scraping contact with the edges of the fly bars under the vibratory or jumping movements of the beater roll and thereby assure a more continuous deflection and circulation of tlie main body of the stock over the backfall than has heretofore been practised.

' A further'object is to provide a more con- 1926. Serial No. 109,898.

venient and expeditious means for clamping and releasing the cover plate or door for the bed plate chamber and at the same time to assure a liquid tight joint between the door and end walls of the chamber when the door is clamped in its operative position.

Another object is to provide the lowest point of the bottom ofthe tub With a quick opening dump valve which is adapted to swing downwardly from its closed position in the direction of discharge of the stock so as to leave a free and unobstructed passage for the stock along the bottom of the vat to the discharge opening. Y

Another object is to provide a wash-out device constructed and located in such inannor as to etlcct a more complete and thorough flushing of the inner walls of the vat than has heretofore been practised.

Other objects and uses relating to specific parts of the apparatus will be brought out in the following description;

in the drawings Figure 1 is a top plan of a beaterengine embodying the various features of. the invention". I

Figure is a longitudinal vertical sec tional view taken on line 2-2, Figure 1.

Figure 3 is a transverse vertical sectional View taken in the plane of line 3-3, Figure 2.

Figure 4. an enlarged vertical sectional View. partly broken away, through the upper portion ot the vat showing a portion of the beater roll and portions of the doctor or flexiblescraper for removing the stock from the fly bars of the beater roll.

Figure 5 is a detail sectional view. taken in the plane of line 5-5, Figure 4.

Figure -6 is an enlarged detail sectional 9 view of the outer side of the vat atthe end of the bed plate showing one of the clamping means for holding the cover plate in its closed position. A

Figure 7 is an enlarged longitudinal sectional view taken on line 77, Figure 1, showing the means for sealing the shaft opening for the beater roll in one side of the vat. a

Figure 8 is a transverse sectional view taken in the plane of line 8-8, Figure 7.

Figure 9 is an enlarged sectional view taken on line 99, Figure 1, showing the discharge nozzle for the wash-out device and its relation to the back-channel of the vat.

Figure is an enlarged view taken on line 10-10, Figure 1, showing the valve for con-- -1-, upright substantially straight side ill , -14:- within the channel -8 adjacent the;

walls 2- and outwardly curved substantially semi-cylindrical end walls -3- together with a mid-feather 4- and hood sections -5-, 6- and -7-, the ends of the mid feather being spaced some distance from the corresponding end walls 3 to form connecting passages between the adjacent ends of the unflow and return channels as -8 and -8'.

The tub is provided with a suitable backfall extending upwardly from the bottom thereof to any desired height, preferably somewhat above the center of the beater roll and adjacent the rear end of the midfeather, the bottom of the tub between the backfall and the outwardly rounded rear end of the tub being preferably concaved longitudinally to form a bowl -10 into which the stock is precipitated after passing over the backfall.

Tim bottom of the bowl 10- is also inclined laterally and downwardly from the outer side wall of the beater channel 8- to the channel 8 which latter is inclined longitudinally from end to end of the vat, and return into the channel -8- to a point as -11 at the front of the beater roll, said point 11- being the lowest level of the ottom of the circulating channels so that the stock passing over the backfall will flow more or less rapidly from the bowl -10 laterally and downwardly along the channel S- returning into the front end of the channel -8 to the lowest point, -11 where it may be discharged when desired thru an outlet conduit\-12- in a manner hereinafter more fully described.

It is evident, however, that this circulation of the stock through the channels of the tub may be continued indefinitely or until the stock is reduced to the required consistency. j

A beater -13- having a suitable fly bars -13'- is mounted upon a supporting shaft front face of the backfall 9- to cooperate with an underlying bed plate --15 in the bottom of the vat for reducing the paper stock to the required consistency and for calculating said stock through the channe s of the vat.

The shaft 14.- extends through openings 16,in opposite sides of the vat and also through an opemng 16 in the midfeather 4-- and is preferably journalcd in external bearings l7- and provided at one end with a pulley -18- which may be connected to any available source of neeasee power for transmitting rotary motion to the shaft and heater roll.

Any movable means, not shown, may be employed for supporting the bearings -17 and incidentally the shaft -14- and heater roll 13- to permit such vertical vibratory movement of the beater roll and support therefor as may be caused by the action of the beater roll, upon materials of widely varying resistances to disintegration and for adjustment of height of beater roll and'it,

therefore, becomes necessary to provide some means for reducing to a minimum the liability of leakage of the water through the shaft openings -16 in the side of the vat.

Packing bow for beater shaft.

For this latter purpose is provided special forms of packing boxes consisting in this instance of flexible diaphragms 18- of rubber or equivalent resilient material, one for eachaopening and inasmuch as both packing boxes are alike the description of the construction of one will serve for both.

Each diaphragm is of sufficient area to cover and extend some distance beyond the walls of its opening -16- and has its marginal edge secured by clamping rings -19-- and bolts 20- to the inner face of the adjacent side of the vat as shown more clearly in Figures 7 and 8, said diaphragm being provided with a central opening -2l-- fof1 receiving the shaft -14 of the beater r0 A sectional gland box 29r has its marin'al edge secured by rivets '--23- or equivalent fastenin means to the diaphragm l 8 aroun the central opening 21-- to extend around the adjacent portion of the shaft 14 and is provided with an annular groove 24 for receiving a pack- Inn ring in close cdntact, with the periphery o the shaft to form a water tight joint therewith and still permit the free rotation of the shaft therein and to ether with the diaphragm -18efiective y seals the opening --16 against' leakage of water therethrough from the interior of the vat while the flexibility of the diaphragm permits limited vibratory movement of the shaft and heater roll thereon.

The land rings 22. and 25- are prefera ly made in two parts to permit them to be more easily laced upon or remove from the shaft and are secured together by clamping bolts --26-, Fig. 8.

Flexible doatorfor beater roTl.

Owing to the vertical vibration or jumping movement of the beater roll, and the necessity of vertical adjustment during its coaction with the bed plate upon widely varying conditions of the stock considerable difficulty has been experienced in removing the stock from the fl bars as it is-carried u wardly against t e front face of the bac "fall and in order to overcome this difiiculty adoctor plate -27- is adjustably secured by bolts '28 to the front edges of the hood section 6- for receivin and su porting a flexibl'e'scraper -i-29-- steel ca 1e or equivalent material which is secured thereto by a clamping bar .30-- and bolts valve being --31- so that its free edge may project into the ath of movement of the outeredges of the y bars -13'- in all positions of vibration or vertical movement of the beater roll, the plate 27-' being slotted at --27",to

permit the entire'doctor to be adjusted tow stock from thefiy bars and the deflection thereof over the backfall thereby assisting in the uniform, and continuous circulation of the stock.

Dmnp 'vabve.

Theupper end ofthe discharge conduit --12"- is embedded in the concrete bottom '-1 at its lowest point '11- and is provided with a top plate-32 forminga continuation of the bottom of thisportion of the vat'and provided with adischarge opening 32" which is controlled by a valve 33.

This valve is hinged at to the undersideof' the plate 32 at one sideot -the opening32- to swing downwardly in and lateral fromits closeduposition shown by full lines to its open position shown by dotted lines, Figure 10, a portion of said 32--"w portion is somewhat larger and isjadapte to en age apacking ring '-'35--"to make a 1i ui tight oint therewith.

t will be observed that the valve 33- when opened swings in the direction of-discharge of the stockentirely clear of the opening -32- thereby afiordin'g a free and unobstructed passage of the stock from the interior of t e vat through the opening 32 and into the discharge pipe -12-.

" Wah out device.

It will be noted that'the bottom of the channels through which thestock is circulated is concaved in crosssection by banking the marginal edges thereof against the outer side walls of the vat and also against the opposite sides of the mid-feather 4- to assure a freer flow of the stock through said adapted -to enter the opening en closed while its underlying channel and also to facilitate the thorough flushing of the interior of the tank and complete dischar e of the stock from the lowest point of theottom when desired.

v The means for flushing the tank consists of a water supply pipe -36 adapted'to be connected to any available source of water supply under pressure and provided withoa V8.

ve 37-for controlling said supply,

One end of the supply pipe 36 is provided with an annu ar, flange secured by bolts --38 to the outer face of the rear end wall -3-'- of the vat in ali nment withthc adjacent end of the channe --8-- near its junction with the bowl -10 to communi- -cate with an inlet nozzle --39 which is 'imbedded in the adjacent end of the concrete bottom ofthe vat and secured to the inner face ofthe end Wall thereof by the same bolts -38', it being understood that the adjacent end wall :-3 is provided with an opening 36;- connecting the pipe -36 to the outer end of the nozzle. a l

The nozzle extends inwardly from the end l wall entirel through the adjacent concrete portion o the bottom tothe adjacent end of the channel 8 and uwhile its outer end may be circular to correspond to the cylindrical form of the pipe "-36 its inner end is preferably flattened and flared laterally and provided with a laterall clongated opening 40 just above the ottom of the channel so that whenthe waterpfor purposes is turned on it will be dis flushin 5 into theinterior of the channelin char e out toithe sides as well asalong the bottom of theformf of a fan-shaped stream spreading 1 said channel to efiecta thorough cleansing of all portions of'the interior ofqthetub from the inlet to the outlet. 1

OZmnpingdeoice for bed plate cover The bed plate 15- is usually provided with a senes of steel bars mounted side -.by side edgewise vertically within a suitable supporting box in the conrete bottom of the vat directly under the beater roll 13 to cooperate therewith in reducing the paper" to the required consistency, the outer side wall of the vat being provided withan opening through which the bars may be removed or replaced when desired.

This opening is, provided with a suitable cover plate 41', Figure 6, adapted to'be clamped against the outer faces ot the walls of the opening to form a liquid tight joint I therewith.

This cover 'plate41- is firmly held in its closed position by a pair of cam levers 42 which are journaled upon pivotal studs 43 on the adjacent side Wall of the vat at opposite endsof the cover plate and are'provided with cam faces 44 movable toward and out of engagement with adjacent cam faces 45 on the cover plate so that cured to the wa when turned to one position the cover plate will be ti htened and when turned to anf other position the cover plate will be released for removal by hand when desired thereby affording an ex editions means for clamping and releasing t e cover in and from its operative position.

W at I claim is:

1. A closure for shaft openin s in pa er stock containers, comprising a exible iaphragm having a gland for receiving the shaft.

2. A closure for shaft openings in paper stock containers, comprising a resilient iaphragm having a gland for receiving a shaft.

3. A closure for shaft openings in liquid containers, comprising 'a' flexible diaphragm having its-'mar 'inal edge adapted to be sefis'of the o ening and its central portion provided wit a gland for receiving the shaft.

4. A closure for shaft openings in liquid containers, comprising a flexible diaphragm having its marginal edge adapted to be secured to the walls of the opening and its central portion provided with a gland for receiving the shaft, said 1gland including a col lar having an interna annular groove and an annular packing rin in the groove.

5. A closure for sha containers comprising a resilient diaphragm having its marginal edge adapted to be secured to the walls of the opening and its intermediate portion 0 ening and a glan secured to the diap ragm around its opening for receiving the shaft.

6. In a beater engine, a vat having shaft openings in opposite sides, a beater roll having a shaft extending through said openings,

flexible diaphragms having their marginal ed es secured to the walls of said openings h provided with glands for receiving the s a 7 In a beating engine having a beater roll, a doctor having a flexible wiper adapted to cooperate with the periphery of the roll for removing stock therefrom.

- 8. In a beating en ine having a beater roll, a doctor having a fl lzxible wiper adapted to cooperate with the periphery of the roll for removing stock therefrom, and means for supporting the doctor adjustably to compensate for wear of the wiper and roll.

9. In a beating engine having a beater roll provided with peripheral fly bars, ;a doctor having a flexible wiper positioned to project into the path of movement of the fly bars.

10. In a beating engine having a beater roll rovide'd with peripheral fly bars, a doctor aving a flexible wiper positioned to:

project into the path of movement of the fly bars, and adjustable edgewise to compensate for wear of the wiper.

11. A doctor for beater rolls comprising members havin openings in liquid (providedwith a shaft a flexible wiper and a clamping device thereor. a V

12. A doctor for beater rolls com rising a flexible wiper, and clamping me rs or holding the wiper, one of said clamping a corrugated face for engaging the portion of the wiper between said members.

13. A doctor for beater rolls com rising a wi er composed of flexible steel ca les and he means for the wiper.

14. doctor for beater rolls com rising a wi er composed of flexible steel ca les and ho ding means for the wiper, said holding means with the wiper thereon being adjustable to compensate for wear of the wiper.

15. A doctor for beater rolls com risin wiper composed of flexible steel cab es an holder therefor comprisin clamping mem bers oneof which is provi ed with corrugations for receiving the cables.

16. In a beating engine, the combination with a tub havin a mid-feather and front and back channe connected around the ends of the mid-feather b return channels,

of a back fall extending m the rear end of the mid feather across the front channel and having its rear face sloped downwardly, rearwardly and laterally to the bottom of the back channel and forming with the adjacent end of the tub,a continuous and unobstructed sweep-way for the water and stock from the upper edge of the back fall to the back channe, the top edge of thebackfall bein inclined downwardly from the'outer we of the front channel to the midfeather, and a beater roll in the front channel adjacent the back fall. w 17. In a beating engine, the combination with" a tub having semi-circular ends and a mid-feather formin front and back channels connected aroun the ends' of the midfeather by semi-circular channels, of a back-. fall extending from one end of the mid feather across the front channel at the beg of curvature of the adjacent semi= circularend wall and forming with said end wall an unobstructed passa e for the water and stock from the backill to the back channel, the bottom wall of the back channel being inclined downwardly from its junction with the backfall to its junction with the front channel, the front channel being inclined downwardly from its junction with the back channel some distance beyond the corresponding end of the mid-feather and III toward the backfall, and a beater roll adgradually from the top edge of the back-fall to the adjacent end of the back channel, and

a heater rOll in-the front channel adjacent the back-fall.

19. A beating engine comprising a tub having return ends and amid-feather form ing front and back channels connected around the ends of the mid-feather by return channels, a back-fall extending across the rear end of the front channel and forming with the adjacent end Wall of the tub the adjacent. return channel, a heater roll adjacent the back-fall, the bottom of the front channel between the beater roll and the other end of the mid-feather being at a lower level than the bottom of the remaining portions of the channels and provided with an outlet, and means for opening and closing the outlet.

20. In a beating engine, a tub having front and back channels, a back-fall across the rear end of the front channel having its rear face inclined downwardly and laterally from its upper edge to the adjacent end of the back channel and forming with the adjacent end Wall of the tub a continuous and unobstructed spiral sweep-way connecting adjacent ends of said channels, and a washout nozzle in the end of the back-channel near its junction with the sweepway arranged to direct a cleansing fluid lengthwise of said baclcchannel and along the bottom thereof. 1

21. In a beating engine, a tub having re-' turn ends and a mid-feather forming front and back channels and return end channels,

a back-fall across the rear end of the front channel, and a heater roll in the front channel adjacent the back fall, the rear face of the back-fall and bottom of said channels being continuously .inclined downwardly from the top edge of the back-fall along the back channel and return to a position in the front channel between the beater roll and opposite end of the mid-feather, means for introducing water into the end of the back channel adjacent the back fall, and means in the bottom of the front channel at its lowest level for withdrawing material from the tubl In witness whereof I have hereunto set my hand this 8th day of May, 1926.

JOHN D. HASKELL.

Images