US1123033A - Apparatus for disintegrating pulp. - Google Patents

Description

W. H. STOBIE.

APPARATUS FOR DISINTEGRATING PULP. APPLICATION FILED NOV. 27, 1912.

1,123,033, Patented Dec. 29, 1914.

'7) 2 9 If 4 J- 6 18" i 9 L 1 1 L- I I i I" 9 2 INVENTOR n STATES. PA

WILLIAM H. 51303113, 01 WATEBVILL E, MAINE.

API'ABATUS FOR PISINTEGRATINQ PULP.

Application area November 27, 1912. Serial no. 733,899.

To all whom it may concern:

Be it lmown that I, WIILIAM' H. S'roBrn, of Waterville, in the-county of Kennebec and State of Maine, have invented certain new anduseful'- Improvements in Appara tus for Disintegrating Pulp; and I do hereby declare the followin to be a full, clear,

and exact description 0 the invention, such dividing or separating the fibers of the stock without breaking or cutting them, thereby producing a stockthat will felt better and more uniformly than the stock from an .ordinary beating engine, and my invention consists in a concavetarget, and a nozzle or plurality of nozzles for. forcibly ejecting the stock against a serrated concave face of the target whereby the stock will be caused to follow the curvature of the face and in contact with theserrations or teeth thereon.

My invention further consists in the details of construction as will be more fully described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a diagrammatic representation of an apparatus embodying my invention. Fig. 2 is a view in vertical section of one form of target. Fig. 3 is a view in rear elevation of same. Fig. 4 is a view in vertical section of another form; Fig. 5 is a view in rear elevation of the same and Fig. 6 is a view in elevation and section ,of the serration or teeth on the inner concave face of the target.

1 represents the target made ofmetal, emery or other suitable material, and centrally secured on a shaft 2, thelatter projecting at the ends of the target so as to permit the shaft and the target thereon, to be adjusted longitudinally in order to bring unwornsurfaces of the target in line with the nozzles 3. The front face of the target is provided with a central longitudinal ridge 4 preferably pointed .or 'z-rounded-at its edge, and with concave depressions or gutters 5 on opposite sides of the ridge and 7 extending lengthwise the target. The inner concave surface or surfaces of the target are serrated or toothed as shown in Fig. 6, and the nozzles3 are located in the plane of the ridge 4, so that the stock as it is forcibly ejected from the nozzle, will be divided,

part traveling over the serrated face of each concave surface of the target. By thus di-, viding the stream of pulp into two parts, each part or stream will be comparatively shallow thus permitting of repeated contact of the fibers with the teeth, before the stock finally leaves the toothed surface.

With the construction above described the shaft 2 passes through brackets 6 integral with the rear face of the target.

In the construction shown in Figs. 4 and Specification of Letters Patent. Pflten-hgfi Dec, 29, 1934.,

5, Ihave shown a target]. with a single 1 concavity, approximately a semi-circle in" cross section, with the nozzles located in a plane slightly below the top so as to prevent any outward splash and cause the entire stream to traverse the serrated face throughout the diameter of the latter. This concave target is preferably provided at its ends with spokes 8 the latter havin which the shaft 2 is secured.

preferably located in a vat containing the "paper stock which has previously been mixed with a proper proporm'on of water to reduce it to a consistency where it can be readily pumped and conveyed through pipes 9 to the nozzles 3 which as previously explained are 'so located to discharge the stream against the concavity in the target and tangentially thereto. Where the targets are back into the vat and will be again carried around and projected against the targets until the stock is in proper condition for felting. The targets may however be located outside the vats, so that the stock, after one contact with the target, may be collected and carried off for the next ste in the process. The actionrof the serrate or toothed face on the stock, is to divide or be prepared, by this apparatus for the paper machine wi thout any treatment whatsoever in the old style of heaters.

ocated in" the vats, the stock falls hubs 9 in he target is Having fully described my invention what I claim as new and dedre to secure by LeItteIrIsI-Patent', isz-fd1 apparatus or 11mm tegrating or viding' fibrous paper stock the combination of a tank, a target, supporting means for h the latter constructed to permit the target I to be'adjustedwiththe relationjo the noz zle, the target having a concave serrated face, and a nozzle with relation site edge.

2. In apparatus for disinte ating or dividing fibrous stock the com ination of a target, supporting means for the latter constructed to permit the target to be adjusted with, relation to the nozzle, the target having a central ridge and a gutter shaped concavity on each side of the ridge,lthe two concave faces being roughened, and a noz- V specification in the zle located to discharge the against the ridge whereby the stream will be di- 7 vlded into two parts one part passing over 15 each concave surface.

In testimony whereof, I have signed this presence of two subscribing witnesses.

WILLIAM H. STOBIEQ Witnesses:

JOSEPH R. Goonwm, HARvEr L. BURRILL.

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