US432300A

US432300A - Pulp-engine

Info

Publication number: US432300A
Authority: US
Publication date: 1890-07-15
Anticipated expiration: 1907-07-15

Description

(No Model.)

G. W. CRESSMAN.

PULP ENGINE.

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GEORGE w. oREssMAN, or BAnRoN HILL, PENNSYLVANIA.

PU LP-ENGINE.

SPECIFICATION forming' pari'. O` Le1'.terS Patent N0. 432,300, dated July 15, 1890. Application filed April 6, 1889. Serial No. 306,150. (No model.)

T0 all whom, t ntay concern:

Be it known that I, GEORGE W. CREssMAN, a citizen of the United States, and a resident of Barron Hill, Montgomery county, Pennsylvania, have invented certainlmprovements in Pulp-Engines, of which the following is a specication.

The object of my invent-ion is to construct a pulp-engine for reducing rags and other paper-stock to a pulp inthe manufacture of paper, as fully described hereinafter.

The main object of my invention is to construct a machine that willbe compact and reduce the rags and stock more quickly than heretofore, and that can be used as a single or double machine.

In the accompanying drawings, Figure lis a transverse sectional view of my improved pulp-engine. Fig. 2 is a plan View; and Fig. 3 is a side View lookingin the direction of the arrow, Fig. 2, with parts in section.

A is the trough, of quadrangular form, as shown in the plan view, and in the base A of the trough are the fixed blades a, of the construction usual in pulp-engines. Situated directly above these blades a are the cylinders D D, having blades d, which operate in conjunction with the fixed blades in pulping the material introduced into the engine.

The cylinders D D are mounted on shafts E t', having their bearings in levers F F, pivoted at ff. The bearing-levers F F of the shaft E can be raised or lowered simultaneously, so that an even adj ustmentis obtained. The bearings F of the shaft E can also be adjusted simultaneously forthe same purpose. The bottom of the trough is made concave for the reception of the cylinders D; but it will be understood that the cylinders do not fit snugly in the concave, but plenty of room is afforded for the passage of the material. Directly under the rolls the stationary knives a come in contact or nearly in contact with the knives of the cylinder D. The two central ooncaves come together at mand form an edge, by which the material is divided.

Above the cylinders D D are concaves or coverings lvl H, over which the material passes as it is forced from under the cylinders. These concaves prevent the material from clogging the blades of the cylinders at the top, and also provide a smooth surface, over which the material may be passed to again enter between the blades of the cylinder and the stationary blades.

The trough A is built up, as shown in Fig. l, so as to make a comparatively small inletopening and prevent the splashing of the material as the cylinders revolve.

Separating the machine into two parts is a gate or partition G, which is adapted to grooves in the sides of the trough. The object of this removable gate or partition is to separate the machine into two parts, so that when long rag stock is to be broken it will pass much more frequently between the knives; but when the stock is suiiiciently broken the partition or gate is removed, 'allowing the pulp from the halves of the machine to come violently together above the edge fr, the cylinders being driven in the direction indicated by the arrows in Fig. 1, the pulp also taking the course indicated. Thus the pulp from the two sections becomes thoroughly incorporated and an even product is assured.

Passing through the vertical supports at each side of the trough is a screwshaft t', adapted to a nut t', which rests against the under side of the bearing-levers F, the upper end of the shaft being provided with ahandwheel I on turning which the nut is raised or lowered, thus raising or lowering the pivoted bearing-lever F. The screw-rodsz' are geared together through the medium of the shaft J, which has bevel-wheels] at each end, which mesh with bevel-wheels j on the screwshafts t' t', so that when one screw-shaft is turned the other will be likewise turned, thus giving an even adjustment at both ends of the shaft.

This mechanism is duplicated in connection with the shaft E. The shafts E E are pro vided with pulleys K K', over which the driving-belts pass.

It will thus be seen by the above description that I am enabled to construct a machine that will be compact and will agitate the material and pulp it much more quickly than machines now in common use, as the material passes the knives more rapidly and oftener. 10o

and stationary knives in saideoncav'e, with a knife-cylinder directly above each set ol. stationary knives, with a removable gate or par tition adapted to pass between the two cylinders and separate the machine in two parts, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' GE()RGE \V. CRESSMAN.

Witnesses:

HARRY SMITH, HENRY I IoWsoN.