US2456883A - Jordan apparatus - Google Patents

Description

1948- w. MESSINGER ET AL 2,456,883

JORDAN APPARATUS Filed Sept. 27, 1945 s Sheets-Sheet '1 INVENTOR.

Dec. 21, 1948. w. MESISINGER ET AL JORDAN APPARATUS 3 Sheets-Sheet 2 Filgd Sept. 2?, i945 lllllllll llllll llllLtL Q 1948- w. MESSING'ER' ET AL 2,456,883 v JORDAN APPARATUS Filed'Sept. 27, 1945 s Sheets-Sheet s INVENTORS.

l x 24 5; m.

Patented Dec. 21, 1948 JORDAN APPARATUS William Messinger, Philadelphia, Pa., and Dwight E. Jones, Pittsfield, Mass., assignors to E. D. Jones & Sons Company, Pittsfield, Mass, a corporation of Massachusetts Application September 27, 1945, Serial No. 618,912

3 Claims.

This invention relates to improvements in Jordan or refiner apparatus such as used in preparing fibers for paper making, and which includes a Jordan and driving means therefor. The invention seeks to solve certain problems which this type of apparatus has heretofore presented.

One of the principal problems encountered in prior Jordans or refiners is that they are made up of several components such as a shell for housing stationary knives and containing the liquid as it flows through the machine; bearings for support of the plug or rotating member; a shaft which is an integral part of the plug; a coupling between driving motor and plug and the driving motor itself. These individual parts are assem bled on a common base, or bases which are joined, or the motor may be mounted on a separate foundation. This makes it necessary to provide a good foundation for the machine and for the mill to use extreme care in aligning the motor and Jordan shafts.

This invention provides a unitary machine which is self-contained and may be placed on an ordinary mill fioor without foundation and without the necessity of aligning any parts as 'these are a part of the structure and all that is necessary is to make an electrical connection to the motor and a connection to the stock flow. This means that it is possible to set a machine up in a minimum of time. It also makes it possible for the mill to replace one unit with another or to replace an existing unit with this machine without shutting down the mill which is necessary with machines of existing construction.

Another problem arises from the large amount of floor space which a battery of Jordan machines has required. Each Jordan apparatus included a Jordan comprising a shell and a plug rotatable in the shell, a drive shaft, two sliding bearings for the shaft, a motor, and a flexible and extensible coupling between the motor and the shaft. The actual floor space which has to be provided in a paper mill for the accommodation of these machines is not alone the area which the machines occupy when fully assembled. The plug must be extracted axially for renewal of the plug and shell fillings. When this operation is performed the length of the fioor space which is required is the length of the assembled machine plus the length of the plug shaft. It is therefore one of the principal objects of this invention to provide a Jordan apparatus which, when assembled, is considerably shorter than such apparatus as heretofore employed, for the same size of Jordan and the same capacity driving unit. The

shortening of the apparatus not only reduces the required width of building for housing a battery of- Jordan machines, but the width of roof, fioor and foundations for a projected new mill can be reduced with substantial saving in mill construction cost.

A further problem which Jordan apparatus has heretofore presented was that of lack of concentricity between the plug and the shell. This created a wide variation in clearance between the bladesof the plug and the shell on one side as compared with the clearance on the diametrically opposite side.

Through the larger clearances the paper making fibers can escape without being worked upon.

-With small amounts of clearance the pressure can easily be built up tocause metal to metal contact between the plug and the shell knives wasting much of the materialused in the knives. This condition also wastes power and causes eX- isting units to beineflicient. There are several reasons for the eccentric position of the plug with respect to the shell. In the initial assembly of the machine in the mill, because of the length and width proportions of the base, it is easy, to

distort the base slightlycausing a misalignment or displacing of the plug center with reference to the shell center lines. The plug shaft isv connected to the motor shaft through a flexible coupling and frequently these parts are not'perfectly aligned causing the Jordan plug or rotor to vibrate displacing the plug readily with respect to the shell. Also, the plug is mounted with slidable bearings whose housings require radial clearances in guides and these guides are exposed to the atmosphere, the dirt and Water in the mill and these destructive elements soon cause wear which enlarges upon the initial clearances. This, too, permits the plug to become readily displaced and occupy an eccentric positionin respect to the shell.-

It is therefore another object of this invention to provide means for insuring the concentricity of the plug and shell. Thus a uniform clearance between the blades of the plug and the shell can be maintained over the entire periphery of the plug, which makes the cutting edges of every blade effective in its refining operation upon the paper stock. This increases the productivity of the Jordan many times as compared with-the output of prior machines. The quality and uniformity of the refinement are improved because of the thoroughness of the action of all cutting blades which do not permit any unrefined stock to pass through.

It is another object of this invention to accomplish the solution of the problems set forth hereinbefore by one and the same means. That is to say, the means employed for shortening the length of the Jordan apparatus involves elimination of theflexible coupling and sliding bearing for theshaft' which'gave rise tothe-eccentricity of the plug with respect'to the shell.

In the course of usage all Jordan or conical refiners blading becomes worn and it must be replaced. In the conventional Jordan it' -isnecessary to remove the Jordan half coupling and in most designs it is necessary td'remov'e'the bearing nearest the motor end. 'iIn thismachine'there is no coupling to take apart. Allth'atis' necessary is to slide the shaft out of the motor quill and there are no bearings whatsoever to be dismantled.

A further object of this invention is to" provide a casing for the J ordani apparatus whichincludes a unitary frame f forjsiipporting"the "Jordan and the'di'iving' means in'fiiied'relation. V a

Still ianothenpioblefinhvhich arises inthe'use of J ordan apparatus reshlts-frointhe'fact that the gap between tH' blades i or the plug and the shell must be varied for different operating conditionsind"because of 'wear of' the blades. It "is 'another object of-t s invention to provide "ni-ahs -for huikl'yhh varying l the ga'p.

' urth'r problem i f" e 4 rator's' 'todetern'une with what pressu he rotating m ehibr works 1 against the' stftior-lairy member "gather-"he may determine what type of work is-' 'being 'done on his pepennaki'fig fibers; 3 Here'tolfore', he has -had to judge h" won: we ='th'e fn achin'e or -note the powerilan is being put into it'by electrical headings'. 1 This invention incorporates afpressure re'cording-device which tellg -exactly-the edwis pressureend it incor orates this device-i that"'dis conne'ction #may readily Be made 'pullirig the plug; vvnerea o'ther 1 device pressure rec'orde'r' frialges -'it fiecessai y to mantlethe' -pr'essure element from -tlieiiiachine when the plug'is bein g pulled.

ppareritimthe? ollowiiig detailed"'desriptionfthereof. In theiaocoiiipanyihg drawings: I

' vatio'n-bf p I y en ion; 1 Fig. '2 "is 'a sec't'in th'r uh a portion offjthe means] for'adju'sti ng the' p g -relafti ve to'fthe shell; Fig. 3 is 'a view o-f theforwardehd ofthe shaft and raceway carried thereby} with -p'artsbroken ;-Fig. 4d is a side-elevation. baroy mecuon "and with parts broke'n -away,- of the Jordan-j apparatus shown-in Fig.-1; V Fig. 4b -is a vertical-section through the forwafd end of the Jordan apparatus of Fig. l'jshowing t me-g-amesting mchanism and r a --'Fi'g.*5 is a a section "taken on the line of 1 Referring to-the drawingg'what'is herein-called a Jordan apparatus; '{comprises a driving means 2 at therear-en'd and -a- J ordan' at the forward end, both 'support'ed on aficas'ihg 3} i The casing-is genrall'y of 'thecross-seoti'on shown inFig. 5"a'nd has inlets 4 6 'a'fiid "'8" for -'IeC"iVi1' 1g paper-stock and has upper"'arfdlowrfilltl'fis lll aind "Willie Hf/Eel" 'ShOWh 'olos'ed by a'plat 1- 4) for discharging the refined paper' sto'cli. 'l ransver'se"partitions 1-6 and I l8=- eirtend across' the ease; shown in Fig. 4a, and a bearing casing c 'ends"rearnt. -mit'sadjustment of the-gap between the; plug and the shell -blades Without interfering -with"the 'drive.

wardly from the partition l8. Between the walls l6 and I8 there may be formed an outlet which has a screw plug 22 therein which may provide means for draining the rear or motor end of the casing. Openings such as 24, 25 and 28 are provided in the casing to permit access to the parts for. adjustment and other purposes.

The'Jordan'consists of-a'shait 30 having a plug which comprises a portion 32 of conical section upon which is seated a plug filling 34 locked in position by lock nut 36 engaging the threaded portion 38 of the shaft 30. The plug filling includes blades 40f The casing 3 has a conical shell portion "42 within which the plug 34 rotates,

"the shell having a shell filling 46 which includes blades '45 in co-operative relation to blades 40.

-Thez plug and theshell communicate at their rear edges with inlets 4, 6 and 8 through which p'aper'stock is fed for action by the cooperating blades, and the refined stock is discharged =through"outlet Ill and, ifdesired; also through outlet 12 after-removing plate'M. The dl'iVil'ig of the shaftSll is'accomplished'by the driving means 2,'in a m'annerto be described hereinafter.

As stated in the introduction hereto, oneofthe problems which'this. invention has-solvedis that created by the long overall'length Y of therapparatus due to the fact'that'the driving means drove' the "Jordan shaft through a flexible I and extensible coupling and sliding bearing. By this invention the drive is effectedwithout these ele- *r'nents; thus shortening Y the --length :of a the macasing; may be sealedbysea-ling members 56- and -58; the tapered 1 end -;5l of the -q uill projecting rearwardly beyond member 56. "Upon --this tapered end is fixed the rotor ;60 of an electric motor which constitutes-the driving means: 2, the

rotor being secured by key SZto a motor --rotor of the quill. The spider 64 is-locked in-position -by-cap1-66 threaded upon the rearend off the quill. The stator-g68of th'e motorm'ay be fixed directly in a motor casin it. The rotor of the driving means is thus supported on the outside of 'qui1150. The-shaft-30 is supported-withinthe'quill'by =a -z:snug, sliding, hon-rotatable fit; whereby the rotor will drive the shafti rBytelescoping the shaft-and rotor, the=overall"leng'th=of the machine is reduced by'the length'of'the" elements hereiningbearin'g and the fiexible coupling, both of which are no longerneces'sary. 'lior this' 'purpose,

the'hollow interior of' quill5fl has a portion" which :has a polygonalsection, and the rear? end 14 Orshart 5n has a s'im'ilar' section of such di- 'mension as to allow a snug, sliding. non-rotatable The slidable feature of 1 the mounting per- 'may be slipped ofi the-quill 'ror repair'or re iace ment. It will be noted that the umbrella shape of the rotor disposes the vertical plane through its center of mass substantially to intersect the bearing 52, which is a favorable condition of operating and minimizing the load force upon the bearing resulting from the overhung weight.

By telescoping the shaft and rotor and supporting the former in the latter, not only is there obtained the advantage of reduced overall length of the machine, but by eliminating the sliding bearing and its radial clearance in its housin the gap between blades 48 and 45 may be maintained uniform over the entire periphery of the plug. This is due to the" fact that the bearings of the electric motor do not permit radial movement and thus the plug and shell are maintained at all times in accurate concentric relationship.

It is necessary and desirable to provide means for adjusting the gap between the blades 48 and 45 not only for the purpose of compensating for wear of the blades but also to regulate the refining action which the apparatus performs upon the stock. Such adjustment is readily effected by operating a handle 88 at the forward end of the Jordan apparatus to move the shaft 30 and its plug axially in one direction or the other depending upon the direction of rotation of the handle.

The mechanism by which operation of handle 88 actuates the shaft 38 axially is as follows: the handle is fixed to a shaft 82 journalled in the forward end of a cap 85 at the forward end of casing 3. The shaft 82 carries a pinion 83 which meshes with gear 86 on a shaft 88 having a screwthreaded portion 98 (see Fig. 2) on its rearward end in threaded engagement through balls 82 and return passage 94 within a member 88. This member is slidably mounted within a cylinder I88 formed within housing 84, but the member is held against rotation by key I02. Rotation of handle 88 will therefore cause member 98 to slide within cylinder 88, and since the axis of cylinder 588 is made coincident with shaft 30, the member 98 will move axially of the shaft.

By mounting the forward end of shaft 38, rotatable in the member '98, but fixed against relative axial displacement with respect to it, any axial movement of member 98 causes shaft 30 to move axially. For this purpose the shaft which extends through wall I84, that separates the Jordan from the housing 84, has a reduced portion F86 (see Fig. 3) provided with the inner raceway "38 of the roller bearing:, cooperating with two raceways I I8, which are inserted within the member 98. Rollers H2 have their axes perpendicular to the axis of the shaft 30, and rollers H4, have their axes parallel to the shaft axis. These multiple sets of rollers operate between their raceways to permit free rotation of the shaft under the agency of axial load forces and radial load forces which may operate upon the shaft simultaneously. Since raceway I88 is fixed to shaft 30, and raceways H8 remain nonrotating with member 98, therefore sliding axialwise movement of member 98 will move shaft 38 axially while yet permitting free rotation of the shaft.

A handle H28 journalled at I22 and carrying a cam I24 may be employed to lock shaft 82 and handle 88 in operating position. Instead of handle 88, or in addition thereto, a power drive for the shaft 88 may be provided through a sprocket I26. A thrust bearing I28 may be provided between the forward end of shaft 88 and The invention may be embodied in other spe cific forms withoutdeparting from the essential characteristics thereof. Hence, the present embodiments are therefore to be considered in all respects merely as being illustrative and not as being restrictive, the scope of the invention being indicated by the appended claim rather than by the foregoing description, and all modifications and variations that fall within the meaning and purview and range of equivalency of the appended claims are thereforeintended to be embraced therein. 8

What it is desired to claim and secure by Letters Patent of the United States is:

1. A unitary self-contained motor driven Jordan comprising in combination, a supporting casing construction having forward rotatable bearing means and a conical bore in axial alignment therewith intermediate its forward and rear ends, a motor stator secured to and supported entirely by the rear end of said casing construction, a rear bearing secured to the rear end of said casing construction, a quill within said bearing, bearing means rotatably support"- ing said quill in said bearing and holding it against axial displacement relative thereto, a motor rotor around and fixed to said quill and disposed in operative relationship with said stator, a single shaft having a tapering plug por tion intermediate forward and rear ends thereof, the forward end of said shaft disposed in said forward bearing means and the rear end thereof disposed in said quill, connections between said rear end of the shaft and quill adapted and arranged whereby said shaft and quill are. relatively slidable and non-rotatable, said shaft being entirely supported by forward and rear ends of the casing construction through said forward bearing means and rear bearing, cooperating blading carried by said conical bore and plug portion, and said casing construction provided with inlet and outlet openings in communication with the conical bore thereof.

2. A unitary self-contained motor driven Jordan comprising in combination, a supporting casing construction having forward rotatable bearing means and a conical bore in axial alignment therewith intermediate its forward and rear ends, a motor stator secured to and supported entirely by the rear end of said casing construction, a hollow rear bearing support secured to the rear end of said casing construction, a quill within said bearing, separate bearing means rotatably supporting said quill adjacent its forward and rear ends in said bearing and holdin it against axial displacement relative thereto, a motor rotor fixed around and to said quill and disposed in operative relationship with said stator, a single shaft having a tapering plug portion intermediate forward and rear ends thereof, the forward end of said shaft disposed in said forward bearing means and the rear end thereof disposed in said quill, connections between said rear end of the shaft and quill adapted and arranged whereby said shaft and quill are relatively slidable and non-rotatable, said shaft being entirely supported by forward and rear ends of the casing construction through said forward bearing means and rear bearing, cooperating blading carried by said conical bore and plug portion, and said casing construction provided with inlet and outlet openings in communication with the conical bore thereof, said con-

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