US1318949A - allison - Google Patents

Description

A. 1. ALLISON, BEATER ROLL.

APPLICATION FILED JULY 21.1911- RENEWED MAY I0. |918.

1,818,949. Patented 0 3t.14,1919.

2 SHEETS-SHEET l.

l. ALLISON.

BATER BOLL.

A APPu'cATmN FILED JULY 2|. 1911. RENEwED MAY 10.191'8. 1,318,949..

Patented Oct. 14, 1919.

2 SHEETS-SHEET 2.

UNITED STATES PATENT orario-E.

ALBERT J'. ALLISON, 0F DAYTON, OHIO, ASSIGNOR TO THE A. A. SIMONDS SONS COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

BEATER-ROLL.

Application led July 21, 1917, Serial No. 182,062. Renewed May 10, 1918. Serial No. 233,791.

[o nl! whom Vit muy concern:

Be it known that I, ALBERT J. ALLIsoN, residing at Da vton7 in the county of Montgomery and State of' Ohio, have invented cert-ain new and useful Improvements 1n Beater-Rolls, of which ,the following is a full. clear, and exact description.

My present invention embodies certain principles which are found in the device of my pending application Serial No. 166,102, filed May 3, 1917, although it is on the whole a very different structure. Therfeature comy mon to both devices, and broadly claimed in the former, is that of securing the fly bars to the supporting member or core by resilient means, which insures continuous pres* sure of the bars against their seats, thus eliminating the possibility of loose bars. In the present invention each bar is secured in place by separate resilient clamping elements, which enables any bar to be removed and replaced without disturbance of anyof t-he other bars. These clamping elements comprise wedges which bear against the supporting member at two considerably separated points, with a tension member bearing on the opposite side lof the wedge approximately midway between these two points. The tension membersare attached to the inner edges of the fly bars, andrdriving the wedges home impartsmore or less fiexure to the wedges, which,by virtue of their resiliency exert a constant ull on the tension members, thus holding t e ily bars firmly in the bottoms of radial slots in the supporting member.

The principal object of this method of fastening the bars is to prevent their becoming slightly loose, as so often occurs where they are fastened in the usual way. Another object is to enable any bar to be removed without disturbing the remaining bars in the roll. Another object is to allow for slight inaccuracies in the bars. The wedges being capable of more or less tiexure they 'are able to accommodate themselves to variations in the bars and other parts, yet insuring the bars being tight.

The spaces between the bars are filled by an improved wood filler. These fillers are made in two parts, tapered in opposite directions, so that when put together they form a ller the shape of the space. One object of this construction is to adjust the thickness of the filler, this being done by the roll,

F1g.'4 is a fragmental' section on line 4 4,

F ig; 1.

Fig. 5 is a fragmental section on line 5,

Fig. 6 is a perspective view of a fly bar.v Fig. 7 is a perspective View of a. wood filler. g

Fig. 8 is a fragmental view of modified form of bar and hook. 1 f Fig. 9 is an end View Aof the modification shownl in Fig. 7. Similar numerals designate likejpartsiyin all of the views. Y vThe supporting member or core comprises two heads 10 secured to va shaft' 11.- Be- 'I tween these heads is mounted on the vshaft a disk 12 used to support'the centersof the fly bars. The -heads 10 are provided with slots 13 (see Fig. 4) to receiveI the fly bars 14. Adjacent to each slot 13 and-communicat-ing therewith, is a recess 15 :extending down into thehead 'toward the shaft (see Fig. 5), and communicating with-sald recesses are transverse slots 16.' At each end the fiy bars are provided with apertures 17,

into which` is inserted laterallyext-ending lugs 18 formed hn one end of bars or rods 19, said bars. which I prefer to call hooks, since their function is analogous to that .of

Patented Oct. 14, 1919.

sof'

a hook, being inserted in the recesses whilev the bars are inserted in the'slots 13. The

shanks of the hooks are provided with eyesV end of the Shanks like the eye of aneedle), which When the hooks are in place register with the slots 16. ledges 21 are then 'drive-I1 inf() the slots-16. said l wedges passing through the eyes 20. As'shownfi'n Fig. 3,v thelwedges bear against the sides of the slots 16 farthest from the shaft at twov widely opposite edges bear against. the ends of the Q0 (so called because of their being at the eyes, the ends `of the eyes being slightly rounded so as to concentrate the bearing. The proportions of the parts are such that driving the wedges into place puts suflicielit strain upon them to flex them. This` flexurc, by virtue of the resiliency of the wedges, puts a powerful tension on the hooks.` which being communicated to the fly bars holds them firmly against the bottoms of the slots 1&5. It will be noted that the slots 13 are slightly broader at their outer than their inner portions and that the fiy barsl are wedge shape in cross section. By correctly proportioning the parts the bars may be made to become tight in the slots about the time or even shortly before their inner edges touch the bottoms of the slots. A portion of the tension of theI tension members is thus utilized for clamping the bars laterally,

thereby insuring` firmness in their setting". The slots 13 are not cut through the outer faces of the heads, members :25 being left standing. T he ends of the bars are cutaway as at 26, making them shorter at their inner than their outer edges, the length of the outer edge being preferably equal t-o the length of the roll. The members 25 occupy the spaces :26 in the bars and prevent the bars shifting endwise. On the outside of the heads the slots 1G are located' in annular channels formed in the heads 10, and after the wedges are in place segmental plates 22 are laid in the channels and fastened Witli screws, giving the heads a smooth exterior. This is a valuable feature as there is nothing then on the head to catch imiterial contained in the beater engine. These plates or covers are adapted to perform another function. namely, to prevent the wedges :'21 from working out. This willbe understood b v reference to Figs. 1 and 3, where itis seen that the heads of the wedges touch the plates. But as the wedges are not liable. to work out, at least no more so than a nut is liable to work` off' of a bolt, the plates may be regarded as a potential rat-lier than an active safeguard. The bars are fully secured by the clamping devices, and the roll may be used to perform its normal function for an indefinite time without the plates being in place. This function of safeguarding the wedges is somewhat aiialogous to the function of a nut-lock. For example. it is somewhat like that of a Cotter pin run through a hole in the end of a bolt and lying in a groove in the nut. In such cases the cottcr pin is generally loose, so that it can bey shaken in the hole, but is ready to perform its function in case the nut should start to turn. It is a mere accident that the wedges touch the plates in the drawing, for it is evident thatA the wedges would perform just the saine function if they were driven slightly farther in. so that the plates could not touch them. The. wedges extend Well example.

into the interior of the roll, and to remove a bar it is only necessary to remove the wood fillers 23-2Jf on each side of it, insert a hai-nmer in the space and drive out the wedges. As each wedge and hook is independent of all of the others, and as they react on the head itself; i. c., the same member which carries the bar they secure, driving a wedge in o1 out docs not disturb an v part of the assemblage. rood has been found most satisfactory as a material'for the fillers, but some other material', preferably non-metallic, may be used; fiber, for The two parts of the fillers are made of such size that when placed together with their edges even, as in Fig. 7, they are the correct'size to fill a normal space between the bars. As for various reasons the width of the spaces may vary, the fillers'are made in two partswhich are tapered in opposite directions. If the space to be filled is undersize the part 24: isput more or lessv 1n advance of the part 23 and the thickness' of the filler thereby reduced. To fill an oversize space the part Q3 is-'advanced It is not to be understood that einbodiment of my invention must be confined to the` structure shown, as various structural modifications vare possiblev within the scope of the appended claims.

diat I claim is as follows:

1. In a beater roll; fly bars, a supporting member, and resilient elements for clamping each bar to the supporting member separately, whereby the bars are pressed and held against the'supporting member by the tension of their respective clamping elements.

2. In a beater roll; Hy bars, a supporting member having radial slots to receive the bars. and resilient means for pressing the bars to the bottoms of the slots.

3. In a beater roll: fly bars, a supporting member having radial slots to receive thc bars, recesses communicating with said slots,

said recesses having shoulders, hooks hooked to the bars aiid occupying said recesses, said hooks having transverse eyes, and wedges adapted to be driven into said eyes, one side thereof bearing against one end of the eyes,

the other sidebearing against the aforesaid shoulders, thereby drawing the hooks t0- ward the axis of the roll, so as to hold the fly bars firmly in the slots.

4. In a beater roll; fly bars, a supporting adapted to be driven into said eyes, one side thereof bearing against one end of the eyes` the other side bearing against the aforesaid shoulders, the bearing 1n the eyes being 11iterniediate the shoulders, thereby tending ""toflex the wedges as they are-driven in and draw the hooks toward the axis of the roll apart, said heads having radial slots. recesses communicating with the slotsand exi tending toward the shaft. fly -bars extending from head to head and seatedinthe slots, hooks attached to the bars. extending toward the shaft in said recesses, c ves in the Shanks of the hooks` transverse slots through the heads in registration with said eyes. andv wedgesdriven through said slots and eyes,

' bearing ateach side 0f the hook against the 'side of the tansversc slots nearest the Hy' bars and hearing against the sfide of the eyes farthest from the fiy bar. thereby tendingto flex the wedges as tliev are driven in and draw the hooks toward the axis of thevroll b v the tension of the wedges.

6. In a beater roll: fly bars, a supporting member. means for securing each bar to the member separately. and fillers composed of two pieces of wood or other material driven -between the bars after they are secured to Ythe member: the two pieces of the filler being tapered in opposite directions so' that by driving one more or less in advance of the other the thickness of the filler may be varied to suit the space.

7. In a beater roll :l fly bars. a supporting member, means for securing'the bars to the member. and fillers composed of `two pieces of wood or other material filling the spaces between the hars.``.the` two pieces of the filler being tapered in opposite directions so that b v placing one or the other closer to the axis of the roll differences in t-he widths of the spaces ma)v be compensated for. l

8. A filler for the spaces between the iy bars of beater rolls comprising two pieces ofl wood or other suitable material. said piecesjointlv having the forni of the spaces but be- Ving tapered in opposite directions so that by placing one or the other piece closer to the axis of the roll differences in the width of the spaces may be compensated for.

9. A beater roll comprising a shaft, two heads secured thereto at suitable distances apart. said heads havingradial slots. recesses communicating with the slots and extending A,toward the shaft. fly bars ext-ending from against the side of the transverse slots near-v est the iiv bars and bearing against the side ofthe eyes farthest from the fly bar. thereby heads secured thereto at suitable distancesl tending to iiex the wedges as they are driven in and draw the hooks toward the axis of .the roll by the tension of the wedges. and

l`segmental plates to fill the 'channels in the heads, secured therein with screws."thereb v giving the heads a smooth exterior.

10. A beater roll. comprisingv a supporting member having radial slots, H v bars mounted thereon witliftheir inner edges in said slots, av pluralityv of independent` radial .tension inei'iibers at eachfen'i'l of the roll whereby. the bars are drawn toward the axis of the roll. and means whereby a1 portion of the,"

tension is utilized to clampthe bars laterally.

ll.v A beater roll'comprising a supporting member having radial slots which are broader at their outer than their inner portions, tl)v bars mounted thereon with-their inner edges insa-id slotsysaidbars being? Wedge shape 11i cross section so as to bey complementary to the slots, anda plurality of radially disposed tension members at each end of the roll, lwhereby said bars` are drawn toward the axis of the roll.

- l2. In a beater roll; fly bars. a supporting member, means at each end of the supporting nielnber for securing the bars thereto, the means at one end being independent of that at the other end, and removable plates covering saidv 'securing means so that particles of the contents of the beating engine can not catch thereon; said securing means being complete in itself and holding the bars so that the roll mai7 be rotated at norm-al speed and used tdrperform its function for an indefinite time whether the plates are in place or not. A

, 13. In a beater -rollgy bars, a supporting member, means at each end of the supporting member whereby the bars are fastened there to, comprising elements which when put in place complete the securit)v of thebars, "so,

independent of that at the other. Vand `re contents .of the beating engine `catching..All

thereon, saidy plates being adapted to prevent displacement of the aforesaid elements.

14. vIn a beater roll. fiy bars, a supporting member` means at each end of the supporting member whereby the bars are fastened thereto` comprising elements which when put in place complete the security of the bars; so

that the roll may be rotated at normal speedand used to perform its function for an indefinite time, the means at one end being independent of that at the other. and means for preventing the accidental displacementV of said elements.

15. In a beater roll, supporting elements carrying abutment-s and seats for Hy bars: Hy bars occupying said seats, and clamping y which bear on said abutments in such a man-f ner and with such force as to hold the barsl elements detachablysecured to the fly bars,

said elements comprising resilient members to their seats.

16. In a beater roll, a ily bar having an aperture` a. supporting member therefor, a

tension member hooked into said aperture,

and resilient means for imparting tension to said member, whereby to hold the bar firmly to the supporting member.

17. In a. beater roll, a fly bar having an aperture, a. supporting member therefor, a. beam, a tension member` one end of which is hooked into said aperture, the other end bearing on the beam, and means for applying strain to the beam at points removed from said bearing whereby to put the ten- ,sion member in tension and thereby hold the bar firmly to the sup-porting member.

- 18.- A beater roll comprising fly bars having their ends partly cut-away so that at their inner edges they are shorter thanjat their outer edges, a supporting element comprising two heads fixed on a shaft, eaeh :25T v head havmg seats for a predetermined number of bars'and members whieh occupy the D. B. VAN PELT, F. K. FASSET'J?.

Copies of this patent may bevobtained for ve cents each, by addressing the Commissioner of Patents,l

' Washington, D. C.

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