US1754519A - Beating apparatus - Google Patents

Description

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Patented Apr. 115, 1930 UNITED STarriz-s PATENT OFI-lcs GEABLES H. F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, .'BY MESNE AS- BIGQN'IENTQ TO-THE LANG OFNGLOUCESTER, NEW TERSEY,`A COBFQBA- T1011' 0F NEW VJERSEY 'Application mea nay 17,

My invention relates to beating engines utilized, in beating or subdividin-g materia-ls,

such .as rags, paper and the like, for producing pulpv or stock utilized for manufacturing paper and rthe like.

In accordance w1th my invention there is A disposed in suitable position or relation with respect to the beater wheel or roll, preferably at or adjacent the highest portion of the backfall, a control membeigpreferably pivoted, adjustable toward and away from the wheel or ro1l,.for graduating or varying the amount or proportion of the'material operated upon which shall pass over the backfall for re-circulation to the beating mechanism, for gradu-A ating or varying the amount or proportion of the material which adheres to the beater roll or wheel and is carried thereby to suitable mechanism for removing the material andv discharging it from the engine, and for effecting a selective separation of the coarser and liner material from each other, the latter conl .to another of a series, whereby the material vv1s increased 1n neness of subdivision 1n the i successive engines of the series-.and finally 4discharged in suitable stateof ineness, the

- operation by the beating engines in-succession making possible a continuous treatment or operatmn.

' My'inventlon resides in amethod and apparatus of the character hereinafter described and claimed. v

For an understanding of my method and for an illustration of one of the various forms my apparatusmay take reference is to be had to the accompanying drawing in'which:

, Fig. 1 is a plan view of a series of beating engines 1n accordance with my lnventlon.

Fig. 2 is a vertical sectional view, partly in elevation, on enlarged scale, on lthe line y2--2 of Fig. 1.

Fig. 3 is a fragmentary vertical sectional view, partly in elevation, taken on the line 3-3 of4 Fig. 1.

' BEATING APPARATUS 1924. serial No. 713,931.

Referring to the drawing, each beater engine E comprises a tub 1 having abottom 2 forming the trough 3 forming a complete circulatory system around the' midfeather 4. In the bottom 2 is disposed the box 5 containing the bed vplates 6 ad'acentwhich rotates the roll, drum or wheel provided with the bars o r spindles 8 and carried and driven by the rotating power shaft 9. 'Disposedabove and enclosing the roll 7 is the cap 10 which may carry the inwardly and outwardly adjustable blade or plate 11. Adjacent the roll 7 is the backfall 12 over which some of the material operated upon passes, `f1owin downwardly along the inclined bottom of ne trough 3 in re-circulation to the beating vmechanism. The apparatus thus far described is a well known type ofv beating engine and is not per se my invention.

Secured upon the pivotal shaft 13, disposed parallel .with the axis of rotation of the roll is'the control plate or member 14 extending longitudinally of the roll 7 and adjustable toward and away from the roll by the operators lever 15 secured upon the shaft 13 on the exterior of the engine. The member 14' is preferably pivoted at or adjacent the upper edge or highest portion of the backfall 12, as indicated. The direction of rotation of the drum 7 is indicated by the arrow, Fig. 2,- and the plate or member 14'is so pivoted that the drum rotates away from'the outer or free end of the member 14. v l l The cap 10has a portion 16 extending over the channel or trough 17, of width substantially equal tothe Awidth of the roll 7, and

having the bottomv board or member 18 with its inner end presented to the roll 7 `and ad- `justable to different distances inwardly to ward or outwardly from the ro'll7, for removing stock or pulp from the roll and delivering. it through the channel 17 into the trough or channel 19 extending above or common to the series of engines E. Thev channel 19 is provided, substantially -in alignment with the channel 17, with bottom slide 20 for opening or closing th pulp 'discharge aperture 21 through which all or a desired portion of the stock or pulp. removed from the roll 7 will be returned into the circulating trough 3 of the tub 1.

The channel or trough 19 is provided with a second slide 22 controlling a pulp discharge aperture 23 disposed over the, troughl 3 of each engine E.

The trough or channel 19 is inclined, as indicated in Fig. 3, from right toward the left, to a suieient degree to effect flow of the stock or pulp delivered thereto.

Considering the operation of a single engine unit E, the stock or material iows in the trough 3 to the region of co-action of the roll 7 and the bed plates 6 Where the material is ground, shredded or otherwise sub-divided and is carried around with the roll 7, in the direction of the extent of the control member 14 from its pivot 13, some ot the material passing over the edge ofthe member 14 to the liackfall 12 and 'thence into the trough 3 for re-circ'ulation and re-treatment. The member 11, which may be omitted, serves to direct a portion of the material over the backfall into the re-circulating trough. The pulp or stock adhering to the roll is to suitable exl tent removed by the member 18, fioWs out. wardly through the passa-ge 17 into the trough 19- where, if the slide 2O has been removed from the opening 21, it again drops into the trough 3 and is recirculated for further grinding or treatment.

' The position of the member 14 with respect tothe roll 7 determines the proportion of the'material which will adhere to the roll 7 and pass therewith to the member 18, and accordingly the position of the' member 14 determines the proportion. of the material passing the bed plates 6 with the roll 7 which will pass over the backfall and be re-circulated in the trough 3. As the outer end of the member 14 is adjusted closer to the periphery of the roll 7 more stock is carried around the roll and delivered by the member 18 through the passage 17 to the trough 19, and less passes over the backfall and is recirculated through the trough 3. Vice versa, as the upper end of the member 14 is adjusted away from the roll 7 more material is rer-irclllated. Furthermore there passes around the roll 7 both coarse and fine material, the latter suitable'for discharge from the engine unit and the former requiring further beating or grinding. rllhe position of the control member 14 effects a selection as between fine and coarse material, the fine material adhering to the roll and passing therewith toy the takeoff member 18, while the coarser material passes over thebackfall into the recirculating trough 3 for further and continued treatment. The finer material as produced by the beating action adheres more readily to the roll and as the member 14 is adjusted towardl the roll the greater is the amount of coarse material that will pass with y the'fine material to the take-off member 18;

and vice versa, when the member 14 is adj usted away from the roll 7 less of the coarser material will adhere to the roll' to be taken off by the member 18 and more of it will pass over the backfall into the re-circulating trou h 3. Accordingly by adjustment of the mem er 14 the material may be more or less uniformly tine, the member 14 serving to cause the coarser material to remain in the beater unit until reduced to desired iineness.

As indicated in Fig. 1 the pulp or stock may be operated upon successively by a series of beating engines, each unit or engine operating upon `the stock to reduce it to a predetermined degree of iineness whereupon it is delivered to the next unit Where the ineness is reduced to further predetermined degree, and so on in the successive -units the degree ot iineness is increased until the desired degree of fineness is obtained whereupon it is discharged from the system.

In the example illust-rated in Fig. 1 the slides 22 are in the open position, whereby pulp delivered through the trough 19 from the left will drop into the trough 3 of the nextunit which will increase its ineness and deliver it through its trough 17 back into the trough 19, if the slide 20 is closed, whereupon the stock Will flow through the channel 19 to the next opening 23, drop into the trough 3 of the next unit Where it Will be reduced further in fineness, and so on throughout the series. The slide 20 may be fully open or partially closed and in the latter case part of the material removed by the member 18 of the unit will pass on to the next unit and part will be re-circulated and further acted upon. Between the. openings 23 and 21 of each unit may be provided a removable slide 24 for shutting ofl" the continuity of the trough 19 ensuring that all material delivered by the trough to the opening 23 of a unit must pass into that unit, to be therein operated upon, and then depart to the next ulnit.

The members 14 of the successive units' are adjusted to suitable positions to eiect the desired extent of operation upon the stock in the different engine units. For example progressing from left toward the right, Fig.- 1, the members 14 may be positioned closer and closer to the successive rolls 7.

The number of units E in the series may be anything suitable or desirable. Ordinarily four to eight units may be employed, though both greater and lesser numbers are contemplated by my invention.

By a s stem employing a series of units as describe the operation of reducing'the stock or pulp to 'suitable ineness may be considered as a continuous process, in the sense that the material is fed continuously or at suitably short intervals into the first unit of the series and is delivered substantially continuously in suitable degree offineness from the last unit of the series'.

l bination with a beating roll, means for with# .drawing material directly from said roll, a

And respecting any single unit, the mate rial is continuously fed thereto and removed therefrom after remaining therein a suitable length of time for reduction to suitable fineness controlled at least in part 4by the member 14. I l

What I claim is: f

1. A beating engine comprising the combi- Y l .nation with abeatlng roll, of means for Withdrawing material from the roll, a channel to which the withdrawn material is delivered,

and means controlling delivery. from said channel into said engine.

2. A beating engine comprising the combination with a eating roll,of means for withdrawing material directly from the roll, a

channel to. whichy the `Withdrawn material is delivered, and a second beating engine to which -said channel delivers the material so Withdrawn.

3. A .beating engine comprising the com- .channel to which the Withdrawn material is delivered, a second-beating engine, andaplurality of means for controlling respectively delivery of material'from saidl channel to said second engine and for returning to said first named-engine the material withdrawn from said roll.

4. A beating system comprising a plurality of beating engines, a channel common to said engines, means for withdrawing material directly from the1 roll of each of said engines and delivering it-to said channel, and means i for delivering material from said vchannel to the next engine in the series.

5. A beating engine for the preparation of pulp, comprisinga beater roll, a backfall,

and means carried by said backfall and adj ustable toward and from said beater roll vfor increasing and decreasing, respectively, the amount of material that adheres thereto as rotation of the roll continues beyond said backfall. s

6. A beating system comprising a plural. ity of beating engines, a channel common to Said engines, a beater roll for an engine, and

.a screenless member ico-operating with said beater roll for determining the characteristics'of the material that circulates in said channel.

7. A beating engine comprisingthe coin-` bination-With a beater roll, back'fall and recirculating channel, of'a pivoted member comprising in eli'ect a movable extension of said backfall, and meansto vary the position .4

of the upper end of said member to change the angular relation between said extension and the surfaceof said roll.

CHARLES H. KIRCOAF.

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