US489079A - Gael kellner - Google Patents

Description

(No Model.)

0. KBLLNER. MACHINE FOR REDUCING PAPER STOCK. No. 489,079.

Patented Jan. 3, 1893.

tion'. This. invention has relation to apparatus for rials for the manufacture of paper, such as UNITED STATES PATENT OFFICE.

CARL KELLNER, or VIENNA, AUSTRIA-HUNGARY.

MACHINE-FOR aeouome PAPER-STOCK.

SBEGIFIGATION forming part of Letters Patent No. 489,079, dated January 3, 1893.

Application filed April 18, 1892.

Fibers for the Manufacture of. Paper; and I- do hereby declare the following to be a'full, clear, and exact description vof the invention, such as will enable others skilled in the'artto whichit appertainsto make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which forth a par't'of this specificapreparing fibrous materials, such as wood or other fibrous materials, for the manufacture of paper.

The apparatuses -o rmachines heretofore employed in the preparation of fibrous matethe well known rag engine orstuff cylinders or engines present structural defects that seriously aflec't the product or pulp; not only'is the separation of'the 'fibers from one-another not as complete as may be desired, but the fibers are more or less torn, while in the case of wood fiber the hard resinous bodies such as knots that remain unaffected by the disintegrating liquors, are ground upsufliciently fine to pass with the cellulose through the vstrainers and tend to materially impair .the

purity as well as the color of the pulp.

The object of this invention is to obviate,

these disadvantages by the provision of means whereby'the separation of the individual fibers from one another is more effectually an tained, and whereby the grinding up or-disthe product after leaving the machine being like cotton and very easily felted.

To these ends the invention consists in the construction and arrangement of .the opera.

tive mechanism, as, will now be fully described, reference being had to the accompanying drawings, in which- 1 v Figure 1 is a-longitudinal sectional elevation; Fig. 2, a transverse section on. line srw of Fig. 1, and Fig. 3, a sectional top plan Serial Notaars. QTo'model.)

view of a machine of, the class described, em-

ence being employed to indicate like parts wherever such may occur.

arator shell of a more or less ellipsoidal form in cross section, the sides of theellipse be g flattened so as to cause the ends of the beater arms or blades to revolve in eloseproximity to the inner surfaces ofthe shell, which is made tapering, its 'cr 'ss sectional area being gradually reduced fr m the discharge to the feed end. t

,The separator shell is supported onsuitable end standards, 0, c, in which are formed the such beater arms being preferably formed on abearing or sleeve mounted on the shafts.

shaft, 1), as to work between the teeth or each other,,sufiicient space being left between ies to pass without being ground up. The heaters or blades (1 d are made longer as they approach the discharge end of the shell so as .tdconform to the cross-sectional area there- 'of; and-as the material, being treated, nears the discharge and the fibers become more and more separated from one another, I increase the number of heaters or blades on the shafts tion andto thoroughly mix the fibrous material with the water fed int o'the'cylinder, at

said discharge end and to facilitate and ex- .pedite the discharge of the fibrous material.

The shafts are revolved toward each other either by suitable gearing, or'as shown, by means of a'driving pulley, f, f, respectively, mounted on the opposite outer ends of said shaft's,-b, and b. By reason of the more or less conical form of the separator shell, a, its

- inner lower face or bottom inclines more or less from the feed to the discharge end, where- I by the material is automatically caused to move toward ,or to said, discharge end-irrespective of the pressure exerted by the mate- L of the materialfroin the separator shell probodying my invention; like letters of refer-.

The heaters or blades,- (1, are so arranged on.

them, to allow the knots or hard resinous bod-j (as shown in Fig. 1) to complete the separaer g. Iii order to further facilitate the discharge:

' In the above drawings, a, indicates the sepbearings for two shafts, b, and b, armed with heaters or blades, d, and d';respeptively,fou r blades, (1', on shaft,b.', but not in contact with rial fed to the separator through feed hop" bodies, while the vide a pipe, h, at the discharge end through which water is introduced into the shell so as to thin out the fibrous material and cause it to readily flow through the discharge pipe, is, Fig. 1.

in practice the cellulose is fed to=the separator in the form 'of a. thick s'emidry paste, the water having been first drained off, and the two shafts are rapidly revolved in opposite dirccti0ns,the'beaters acting on the fibers t0 effectually separate the same from one another and from the knotsor hard resinous latter pass freelyv between the beater arms without being crushed or ground up, so.--'that they can be readily re moved bystraining the pulp in the usual man'- ner after leaving the machine. v

Having thus described my inventidl), what I claim as new by Letters Patent is:-

therein and desire to secure In a machine of the class describedftjhe combination with the shell or casing made to I diametrically opposite each other, of the shafts Z and 2 each provided with sets of beater' armsincreasing in lengthand number toward said discharge end, the beater arms on one shaft working between those on the other shaft, and means for revolving said shafts toward-each other, substantially as and for the purpose set forth. I

In testimony wh ereof I affix my signature in presence'of two witnesses. Y 1 V CARL KELLNER. VVitne'ss'es: v

J ULIUS GoLDsoHM'mr, A. SOHLESSlNG.

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