US1895188A

US1895188A - Breaker and beater roll

Info

Publication number: US1895188A
Application number: US614781A
Authority: US
Inventors: John D Haskell
Original assignee: DILTS MACHINE WORKS Inc
Current assignee: DILTS MACHINE WORKS Inc
Priority date: 1932-06-01
Filing date: 1932-06-01
Publication date: 1933-01-24
Anticipated expiration: 1950-01-24

Description

4Jan. 24, 1933.4 J, D'||A5KEL 1,895,188

BREAKER AND BEATER ROLL i Filed June 1, 1952 5 sheets-Sheet 1 Jan. 24, 1933. 1. D, HASKELI.

BREAKER AND BEATER ROLL Filed June l, 1932 5 Sheets-Sheet 2 gwwm JM? @cf/M efficiency Patented Jan. ,24, 1933 c UNITED STA Tes) PATENT ori-*ICE lTOEN D. HASKELL, 0F FULTON, NEW YORK, ASSIGNOR TO DILTS MACHINE WOBKS,.INC OF FULTON, NEW YORK, A CORPORATION OF NEW YORK Bananas. AND snaren BOLL Application led June 1, 1932. Serial No. 614,781.

- This invention represents an improvement in breaker and beater rolls for paper pulp beaters as used in the preparation of paper stock made from rags, straw, wood fibre etc. More particularly the invention applies to a form of beater roll known as a breaker roll, the function of which is in a preliminary way to break up large wads of materials or bundles thereof preparatory to being furnished to finishing beaters or further rening apparatus.

On regular finishing beaters theHy barswear down through their contact with the bed-plate located beneath the roll, whereas breaker rolls usually run with vsome space between the bed-plate and Hy bars of the roll, and the bars usually project further from the body of the roll and are spaced further apart in order to provide a greater bucket action for the propelling of the stock. For this classv of service it is necessary to use extremely heavy bars, and even then the bars are subjected to terrific impacts due to oversize wads of pulp, foreign substances such as stones, pieces of metal and the like, and sich foreign bodies are apt to bendthe bars back and thus they lose their effectiveness. Also Where old rags, waste paper and other refuse are deposited in the beaters there is often a great amount of abrasive matter which, in combination with water, wears off the leading edges of the bars so that they quickly become rounded along such edges. This also in a great measure reduces the of the breaking effect of the roll and bars.

This invention comprises devices of special construction and arrangement for the re-enforcement of the roll Hyv bars, as well as for their individual formation and the means for securing the Hy bars and supporting them in proper position upon the spider frames of the roll. The bracing members making a part of this invention and herein described and illustrated are believed to act to prevent the bars from bending over Vout near the cutting edge of the bars and bracing one bar against the next adjoining bar, at the same time leaving ample space between the bars for the circulation of the stock.

In `the accompanying drawings constitut. l

ing a portion of this application the construction of the various elements and their combined assemblage are illustrated. Fig. l is a fragmentary perspective view, showing the brace members secured against the Hy bars. Fig. 2 is a longitudinal section of a Hy bar used in one form of this invention. Fig. 3 is a cross section of bars illustrating the wood filling and the l0- cation of the brace member to re-enforce the Hy bar near its beating edge. Fig. 4 is a sectwo adjoining Hy tional View lengthwise through the wood Hlling and brace members, showing the sup porting spiders also in section, and the bolts employed to secure the parts in place upon the spiders. Fig. 5 is a cross-section of the parts set out in Fig. 4 taken through the wood filling between the spiders. Fig. 6 represents a sectional view lengthwise of the brace member, showing the spiders in section, the location of the wood filling, and the arrangement ofthe bolts to secure the same with the Hy bars upon the spiders. Fig. 7 is a cross section of the parts illustrated in Fig. 6 through the spider, brace member and modi- Hed Hy bars secured thereupon. Fi 8 is a sectional view of a further modifid Hy bar showing the protected edge.

Throughout the description and dra-wings the same number is used to refer to the'same part.

It is not intended to limit this invntion to the precise relative sizes of the parts shown, or to any particular materials or exact formations, as such features may be readily changed by those familiar with this subject.

Considering Fig. 1 as'showing the positions of the parts, the spider l engages the Hy i that en ages anangular'recesslO in the side' of theybar 2. The like element to wedge 9 'same general shape as before, 1 isthe same. In this arrangement of the inas best illustrated in Fig. 5, a plate l13 of hard metal isitted against the `fly bar vns will be described more in detail later in this description. A second wood filling piece 11 is set forth in Fig. 3. In this figure of the drawings it will be noted that the race membed'3re-enforces the Aily bar 2 near the upper and outermost end which is subjected to the vheaviest blows in operation.'

ConsideringFig. 4 thefly bar 12 is ofthe and the spider vention,

and the-bracemembei` v14 is placed against the plate which gives somewhat elastically andlnsures proper contact ofthe brace member and iy'bar.. The face of the brace memment with ber may havea small recess inthe fitting of thezparts together. 16 aroused to secure the wooden filling caps 17 and 18 :in place as illustrated uponv the spiders,

recesses 19 in the spiders'in Fig. 4. The lower wooden lling pieces are designated

bynumbers

20 and 2 1. It will be Ynoted in Fig. 5 that the ily barsas they are arranged present to each `other surfaces that diverge l somewhat, and the'brace member 'when the spiders 1 are the same, and the brace mem bolts'a-re set up may have a partial wedging action. When one bar receives the force of a blow by impact upon its cutting edge the effect of the blow is carried back through the brace member against the .next vadjacent This improvement is intended .solely to act as a supporting brace for theiiy bar out near the cuttin e e to preventy the bar from bending bac w ich occurs'regardles of how much bracing might be applied 'at lthe bottom of the space between 'the bars or atthe top of the wood filling. In Fig. 5 it will be noted that the. lower filling piece 20 has a recess 22 formed to engage the toe 23 at the lower end ofthe y bar 12.

In Fi 6 a modified/Hy bar 24 is shown, having t e shape illustrated in Fig. 7. b.

yers 25and securing-bolts 26 substantially as before'specified. The wood filling'27 is also of like nature. The fly.

` of an inverted V type, in which the leading or i iss Vbody portion is, su

stantially in axial ali nment with the centerline of the roll. In t is construction a severe blow at the cutting edge on the leading side ofthe fly bar will be transmitted down the slanting leg 28 of the V .and

be taken up-by Likewise, a part of the blow is absorbed'by the brace members and tra'ismitted to the next bar. In a breaker and beater rollconstrucfed along the lines as set out in Fig. 7 thebars would Abe inserted into the dovetail recesses of the spiders from the end, and then ,los

the met-al keysI or 'wedges1 29, such as the mentioned wedge 9, are driven into the remain- 15 to further aid The bolts andthe bolts are shown in engagef fly 'bar near `the point `where'the adjacent bar is fastened'into the heads or spiders.

The'v bar in Figs. 7 and 8 is the beater heads or spiders.-

ing space in the dovetail recess above the toe 30 of the fly bar 24, which .effectively secures each fiy bar in the head or spider 1. In Fig. 7 is also shown an anuglar recess 31 in the outer surface of the leg- 28 of the fly bar 24, and this recess is adapted to receive a small plug 32 that may be termed a locking plug,driven in after the bars are fastened to the spiders. This would prevent the bars from moving endwse during the operation.

Fig. 8 of the drawings illustrates a slightly `modified iiy barl contemplated for use in this invention. The body of the bar 33 has a toe or'extension- 34 at lthe lower end, and an inclined supporting leg 35 which is like the leg 28 already described. The construction is practically the same as before but with a groove cut away on the leading edge of the bar, and this groove is so formed that the space from which the metal has beenremoved may be filled with an extremely hard and tough metal, preferablyv such as stellite,

which can be fused into the groove by means r of Oxy-acetylene welding or 'other welding process. Since the greater part of the wear due to `abrasion comes at the very leading edges of the bars, a comparatively small insertion of this extremely hard metal is effective in resisting wear at this point and prolongs greatly the useful life; of the bar.

The inserted metal is marked 36 .in Fig. 8.

'Ihe operation of this invention is the same as that of any breaker roll, and it is thought that by suitably bracing the ily bars near the cutting edge 'on one side as explained, and

articularly by employing the inverted V- j orm bar the bendingback of the. cutting edges of the bars will be almost eliminated and the ,life of the :roll materially increased with consequent and obvious economy in actual service. f

Having now described this invention and i `the manner of its use, I 'claim:-'

1. In a beater and breaker roll, theV comblnation with internally disposed supporting spider frames, of fly bars carried by the spiders, filling pieces arranged between said bars, bracing members arranged between said bars and upon said filling pieces, the said brace memb'ers'having extended portions on one side thereof and arranged to brace the Aupper outermost end portions of the fly bars on lone side thereof, andv means securing the upper outermost end portions of the Hy bars on one side thereof, and means securing the filling pieces and brace members to the said spiders.

3. In a beater and breaker roll, the combination with internally disposed supporting spiders, of spaced Hy bars carried by the spiders, filling pieces arranged between said bars, said filling pieces being composed of separable upper and lower pieces, the upper pieces overlyin the lower pieces, said Hy bars having eac a toe projection, one of said lower filling pieces having a recess fitting the toe projection of a Hy bar, bracing members exteriorly placed between said bars and upon said iilling'pieces, the said brace members having extended portions on one side thereof and arranged to brace the upper and outermost end portions of the Hy bars on one side thereof, and means securing the filling pieces and brace members to the said spiders.

4. In a breaker and beater roll, the combination with internally disposed supporting spiders, of spaced Hy bars in engagement with the spiders, filling pieces arranged between said bars, said Hy bars having each a projecting toe, means engaging the toes of the bars and the said spiders to retain the bars,

- bracing members arranged between said bars and upon said filling pieces, the said brace members having extending portions on one side thereof and arranged to brace the upper outermost end portions of the fly bars on one side thereof, and means securing the filling pieces and said brace member to said spiders.

5. In a breaker and beater roll, the combination with internally disposed supporting spiders, of spaced Hy bars in engagement with the spiders, filling pieces arranged between the bars, 'bracing members arranged between the bars and upon said filling pieces, the said bracing members having extended portions on one side thereof, a metal plate placed against the said Hy bars on one side thereof and the said extended portion of the brace members being placed against said plate thereby bracing the upper outermost end portions of the Hy bars on one side thereof, and means securing the filling pieces and brace members to said spiders.

6. In a breaker and beater roll, 'the combination with internally disposed supporting spiders, of spaced Hy bars in engagement with the spiders, filling pieces arranged between the bars lengthwise and'supported by said spiders, bracing members arranged be- 'ween said bars and upon said filling pieces, the said brace members having extended portions on one side thereof and arranged to brace the upper and outermost end portions of the Hy bars on one side thereof, and means securing said brace members to the spiders thereby holding the said filling pieces in place upon the said spiders.

7. In a breaker and beater roll, the combination with internally disposed supporting spiders, of radially extending spaced Hy bars in engagement with the splders, the upper portions of the Hy bars presenting divergent surfaces towards each other, filling pieces arranged between the bars lengthwise and supported upon the spiders, bracing membersriitting the divergent surfaces between the bars and resting upon said filling pieces, the said brace members having extended portions on one side thereof and arranged to brace the upper outermost end portions of the Hy bars on one side thereof, and means for securing said brace members to the spiders thereby holding said filling pieces in place and exerting a wedging action upon said bars. j y

8. In a breaker and beater roll, the combination with internally disposed supporting spiders, of spacedfiy barscarried by the spiders, said bars and spiders having on opposite sides of the bars openings adapted to receive locking elements, locking elements Aconstructed to engage said openings, filling pieces arranged between the bars lengthwise'and supported by the spiders, bracing members arranged between said bars and upon said filling pieces, the said brace members having extended portions on one side thereof and arranged to brace the upper outermost end portions of thevHy bars-on one side thereof, and means for securing the filling pieces and brace members to said spiders.

9. In a roll of the character described, a. Hy bar having a main body portion provided with an upper stock breaking part and portions extending in two directions from the body, in combination with a spider having devices form-ed to engage said extensions of Athe body to secure the Hy bar upony the spider.

`10. In a. roll of the character described, a fly bar having a main body portion provided with an upper stock breaking surface and a part extending from the body on the opposite side from said surface to re-enforce the body, in combination with a spider having devices formed to engage the said body and extension of the body to secure the'Hy bar upon the spider.

11. In a roll of the character described, a Hy bar having a main body portion provided with an upper stock breaking surface and a part extending downwardly from the body on the opposite side from said surface to re-enforce the body, in combination with aspider having devices formed to, engage the said body and extension of the body thereby securing the Hy bar upon the spider.

12. In a roll of the character described, a Hy bar having a main body portion provided with an upper stock breaking surface and a part extending downwardly from the top of the body in an inclined direction on the oposi'tel side from said surface to re-enforce the od in combination with a, spider lhaving devlces formed to engage the said body and extension of the body to secure the vfly -bar 5 upon the spider. 13. In a roll of the character described, a fiy bar having. a main body lportion provided with an upper stock breaking surface and an inclined integral part extending from the body on the opposite side from said surface to re-enforce the body, in combination with a spider having devices formed tov engage said body and the extension of the body' to secure the fly bar upon the said spider.

14. In a roll of the character described, a fly bar having a main body portion rovided with an inclined part extending rom the body on one side thereof to re-enforce the body, in combination with a spider having devices formed to engage theV said ,body and extension of the fly bar, and an external brace member secured to the spider against the said extension of the iiy bar to secure the fly bar upon the spider. y

15. In a roll of the character described, a

fly bar having a main body portion provided f on one side with an upper stock breaking? y surface and an inclined part extending from the body on the opposite side from said sur face to re-enforce the body, in 'combination with a spider having a dove-tail recess adapted to engage'the said body portion and extension of the fly bar, anda wedge engaging the said recess of the spider and the 35 body of the fly bar-"to'secure the fly bar upon Ythespiden l In testimony whereof, I aiii my si nature. Y --IJOHN D. HAS ELL.