US820522A - Paper-stock-refining engine. - Google Patents

Description

PATENTED MAY l5, 1906.

H. E. SAECKEE. EAPEE STOCK EEEINING ENGINE.

APPLICATION FILED 00T. 9,1'195.

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' E. G. SAEGKEE. PAPER STOCK EEEINIEG ENGINE.

APPLICATION FILED 00T. 9, 1905.

PATENTED MAY 15, 190e.

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UNITED STATES PATENT OFFICE.

HERMAN G. SAECKER, OF APPLETON, WISCONSIN.

w/wm, t may concern: Be it known that I, HERMAN G. SAnoxnn, a citizen of the United States,

PAPER-STOCK-REFINING ENGINE.

Specification of Letters Patent. Application filed October 9, 1905. Serial No. 28

knives are he residing at Ap- The end belts,

katented May 15, 1906.

in which a single set of ld, have, unlike the intermediate belts, but a single set oi' cross-grooves, and at pieton, in the county of Outagamie an State the smaller end of the core a cylindrical belt 6o 5 of Wisconsin, have invented certain new and f is formed, corresponding in height with the useful Improvements in Paper-Stock-Refinadjacent belt b and separated therefrom by ing Engines, of which the following is a specia space or groove. An annular band c', fitfication, reference being had to the accomted upon the cylindrical end beltf, is made to anying drawings, forming a part thereof. partially overlap the adjacent taperingbelt 1). 6 5 1o This invention relates more particularly to g g are the knives or blades which are arthe arrangement of the knives or blades and ranged in several series or sets around the the means of securing them in place upon the core between the several belts and bands l) conical cores of machines for reducing paper and e. They are fitted and held at their inpulps toa finely-comminuted condition. Its ner edges or backs and at their ends in the 7o 15 main objects are to increase the capacity of cross-grooves of the belts b and b and are machines of this class having cores of a given notched in the ends to engage wi th'thc resize, to facilitate arranging and fastening the taining-bands e. blades in place on the cores, and generally to In assembling theparts the largest band is improve the construction and operation of driven into place or shrunk upon the belt at 75 2o such machines. the larger end of the core. The knives' of the It consists in certain novel features of confirst set or series are set in position in enstruction and in the peculiar arrangement gagement at one end with said band and at and combinations of parts, as hereinafter both ends with corresponding cross-grooves particularly described, and pointed out in the d in the proper belts, and the next smaller 8o 2 5 claims. band c is then forced into place or shrunk In the accompanying drawings like letters upon the next smaller belt in engagement designate the same parts in the several figwith the converging ends of the assembled ures, knives. The knives of the succeeding sets Figure 1 is a view, partly in longitudinal are arranged and secured in position in like 8 5 3o section and partlyin elevation, of aportion of manner, the last set being fastened by the the conical core of a paper-stock-refining enband e at the smaller end of the core. In this gine embodying the invention, the spacing- Way the knives of the several series or sets pieces between the knives and a part of the are properly spaced, easily and quickly asknives being omitted. Fig. 2 is a fragmensembled, and securely fastened and held in 9o 3 5 tary cross-section on the line 2 2, Fig. 1; and place on the core, wi h their backs or inner f Fig. 3 is a diagrammatic elevation of the edges resting firmly against its conical or tacore, showing the arrangement of the knives. pering faces between the annular belts, the (L designates the core, which is formed at grooves d corresponding in depth with Athe intervals between the ends and at the ends height or thickness of the belts. y 95 4o with outwardly-projecting annular belts l? Spacing strips or blocks h, of wood or other and b. The intermediate belts between the suitable material, inserted between the ends of the core are formed in their outer knives, as shown in Fig. 2, stiffen and support faces with central longitudinal channels c them laterally between the belts and bands, and with cross-grooves d running lengthwise by which they are secured at their ends.` roo 45 of the core, the grooves on each side of the In machines of this kind the core is incentral channel in each belt breaking joints closed in a casing which is of corresponding with those on the opposite side except at one form and is provided on the inside with lonpoint in the belt, and there being a greater gitudinal blades or knives, and the papernumber of grooves on that side, which is of stock which is to be refined is fed into the 1o 5 5o the greater diameter. Annular knife-retainsmaller end of the machine .between the oping bands e, preferably of rectangular crossposing knives on the core and in the case and section, as shown, are fitted upon the belts l) is discharged from the larger end of the over the central channel c therein, the outer j machine. On account of the divergence of faces of the belts being tapered to correspond the knives and the increasing space berio 55 with the tapering surface of the core between tween them toward the larger end of the the belts, as shown in Fig. 1. core the greater part of the work is done Y M Ne A by the ends of the knives, which converge or approach each other. It has been customary heretofore to arrange the knives on the cores in continuous lengths or rows extending from end to end and in half lengths or rows extending from about the middle to the larger end of the core midway between the other rows. With this arrangement the greater part of the work of refining the paper-stock is done by comparatively short vportions of the knives adjacent to the smaller end and to the middle of the core, while the remaining portions along the greater part of the length of the core have done very little work. By arranging the knives, as shown in Fig. 3, in several sets or series around the core, so as to break joints at their ends, and by increasing the number of knives in the successive sets or series from the smaller toward the larger end of the core the work is more evenly distributed and the capacity of a machine of any given size is materially increased, the paper-stock being subj ected at comparatively short intervals as the core enlarges to the action of an increasing number of knives.

The several sets or series of knives or blades may for convenience of construction and assemblage be started, as shown in Fig. 3, in line with each other on one side of the core; but they may be otherwise arranged, and any desired number of series or sets of knives breaking joints at more or less frequent intervals in the length of the core may be employed.

Various changes in the minor details of construction and arrangement of parts may be made within the principle and intended scope of the invention.

I claiml. In a paper-stock-refining engine, a conical core formed with outwardly-projecting annular belts which are grooved at intervals lengthwise of the core, annular bands tted on said belts, and knives fitting into the grooves in said belts and notched in the ends to engage with said bands, substantially as described.

2. In a paper-stock-reiining engine, a conical core formed at intervals in its length with outwardly-proj ecting annular belts which are formed with longitudinal channels in their outer faces and on opposite sides thereof with grooves running lengthwise of the core, grooves on opposite sides of the channel in each ring breaking joints with each other, an

in the ends to engage with said bands, subi stantially as described.

3. In a paper-stock-reiining engine, a conical core formed are formed at intervals with cross-grooves running lengthwise of the core and extending to the depth of the surface of the core between said belts, annular knife-retaining bands fitted upon said belts, and knives fitting at their backs and ends into said grooves and notched at the ends to engage with said bands, the backs of the knives bearing against the surface of the core between the belts an bands, substantially as described.

4. In a paper-stock-reiining engine, a conical core formed at intervals in itslength with outwardly-projecting annular belts which are formed at intervals with cross-grooves running lengthwise of the core, annular bands fitted on said belts, knives fitting at their backs and ends into said grooves and notched in the ends to engage with said bands, and spacing-pieces tted between the knives and supporting bands, substantially as described.

5. In a paper-stock-refining engine, the combination of a conical core formed at the lsmaller end with a plain cylindrical belt and f at intervals between the ends and adjacent to the cylindrical belt with tapering belts, which are formed with radial cross-grooves running lengthwise o f the core, the intermediate belts each having a longitudinal channel in its outer face and cross-grooves on opposite sides of the channel out of line with each other, annular bands fitted on said belts, the band at the smaller end of the core being fitted on the cylindrical belt and the adjacent tapering belt which itv overlaps, and knives fitting at their backs and ends into corresponding grooves in adjacent belts and being notched in the ends to engage with corresponding bands, substantially as described.

In witness whereof I hereto afiix my signature in presence of two witnesses.

HERMAN G. SAECKER. Witnesses:

II. E. PoMERoY, P. M. CONIKEY.

at intervals in its length with 5 outwardly-projecting annular belts which them laterally between said ICO

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