US628311A

US628311A - Device for removing splinters from ground wood or sulfite.

Info

Publication number: US628311A
Application number: US68878698A
Authority: US
Inventors: Joseph Goodfellow
Original assignee: Individual
Current assignee: Individual
Priority date: 1898-08-17
Filing date: 1898-08-17
Publication date: 1899-07-04
Anticipated expiration: 1916-07-04

Description

No. 628,3". Patented July 4, [899.

.1. GOODFELLOW.

DEVICE FOR REMOVING SPLINT ERS FROM GROUND WOOD OR SULFITE.

(Application filed Aug. 17, 1898.)

(No Model.)

WITNESSES: J

A TTOHNEYS.

m: nanms Pz'rzns ca, PnoTouTwo WASHINGTON. n. c.

I a tank A, above which is supported by suit- I wall upon a table E, extending forwardly and UNITED STAT-Es PATENT OFFICE.

JOSEPH GOODFELLOW', OF FORT EDWVARD, NEW YORK.

DEVICE FOR REMOVING SPLINT ERS FROM GROUND WOOD OR SULFITE.

SPECIFICATION forming part of Letters Patent No; 628,311, dated July 4, 1899.

Application filed August 17,1898.

To all whom, it may concern:

Be it known that -I, JOSEPH GOODFELLOW, of Fort Edward, in the county of Washington and State of New York, have invented a new and Improved Device for Removing Slivers from Ground Wood or Sulfite, of which the following is a full, clear, and exact description.

The invention relates to the manufacture of paper from mechanically or chemically prepared wood-pulp and its object is to pro: vide a new and improved apparatus for removing the slivers or other objectionable particles from the ground wood-pulp or sulfite to greatly improve the quality of the paper manufactured from the pulp or sulfite;

The invention. consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar characters of reference indicate corresponding parts in all the figures- Figure 1 is a plan view of the improvement. Fig. 2 is a sectional side elevation of the same on the line 2 2 in Fig. 1, and Fig. 3 is a transverse section of the same on the line 3 3 in Fig. 1.

The improved apparatus is provided with able brackets attached to the tank a feed-box B, connected by a pipe 0 with a pulp-supply, so that the mechanically or chemically prepared pulp fills the said feed-box B during the operation of the apparatus.

In the forward wall of the feed-box B, and at the lower end thereof, is formed a longitudinally-extending outlet B for delivering the pulp to a trough D, formed or arranged on the front of the feed-box B, the said trough discharging at the upper edge of its forward downwardly to deliver the pulp evenly upon the peripheral surface of a straining-cylinder F, having its shaft G journaled in suitable bearings in the ends of the tank A. The upper portion of the straining-cylinder F extends above the tank A, while the remaining part extends within the tank, it being understood that the pulp is delivered to the periph- Serial No. 688,786. (No model.)

eral surface of the cylinder at or near the top thereof, as indicated in Fig. 3. The strainin g-cylinder F has its rim formed by a screen or sieve of suitable mesh or of perforated sheet metaL'the rim being attached to heads. F and'F of which the head F opens to an outlet A, formed in one end of the tank A,-

so that the strained material within the cylinder F can pass through the head F and the outlet A to a suitable receptacle for further treatment in the manufacture of paper. The heads F and F have their peripheral lower portions covered or protected by flexible bands H H, respectively, carried by the ends of the tank A, and the upper portions of the said heads are closed on their faces by transverse boards I l, secured to the top of the tank. Thus the cylinder F has its interior closed to the tank, the external surface being adapted to pass through the water and other matter contained in the tank A. The rear of 'the tank A is formed with an overflow A extending throughout the length of the said rear end and opening into an inclined chute J for carrying 0d the slivers and other objectionable particles to a desired place of discharge, to be treated again and returned to the box B for further treatment in the apparatus.

The operation is as follows: The pulp or sulfite in liquid form passes from the feedbox B through the outlet B into the troughD, from which it spreads evenly over the table E and is delivered in this condition to the exterior of the perforated surface of the straining-cylinder F. As the latter is rotated by any suitable means the desirable portions of the pulp readily pass through the meshes of the cylinder to the interior of the cylinder, while the slivers and other large objectionable particles carried by the said rim into the accumulated matter in the tank A are finally discharged over the overflow A into the chute J. The desirable portions of the pulp pass from the interior of the straining-cylinder F through the head F and outlet A to a suitable receptacle sliverless and a finished product. The slivers and other objectionable particles are taken to a suitable refining-machine, where they are brought to proper condition for further treatment by the apparatus to obtain more desirable portions of the pulp and finally working all the slivers into pulp, saving all Waste.

The table E is supported at its upper end by the trough D and at its lower end by suitable brackets E, attached to the tank A.

From the foregoing it will be seen that the slivers and other objectionable matter are readily separated from the desirable portions of the pulp, and consequently the latter is more capable of being formed into a highgrade paper, while the slivers and objectionable particles are again treated and returned to the apparatus. Thus all the valuable particles originally contained in the pulp are made use of in the manufacture of paper.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patent 1. In a pulp-strainer, the combination of a tank having therein an overflow-opening and also having a pulp-discharge orifice at one end, a reticulated cylinder mounted in the tank and having at each end an annular head, one of said heads being directly adjacent to the pulp-discharge orifice, a flexible band bearing against each head of the cylinder and serving to prevent the escape of the pulp from the cylinder to the tank, the pulp passin g through one of the heads to the dischargeorifice, transverse closures mounted at the upper portion of the tank and respectively bearing against the heads of the cylinder, to close the same, and means for feeding the pulp upon the cylinder.

2. In a pulp-strainer, the combination of a tank having a discharge-orifice, a reticulated cylinder mounted to turn in the tank and having communication with the dischargeorifice at one end of the cylinder, the cylinder projecting above the tank, a closure for each end of the cylinder at points above the tank, such closures being carried by the tank, an inclined table leading to the upper side of the cylinder, and a feed-box delivering the pulp to the table.

In a pulp-strainer, the combination of a tank having an outlet-orifice therein, a reticulated cylinder mounted to turn in the tank and communicating with the outlet-orifice at one end of the cylinder, the cylinder projecting above the upper edges of the tank, and a closure for each end of the cylinder at points above the tank, such closures being attached rigidly to the tank and bearing against the ends of the cylinder.

JOSEPH GOODFELLO\V.

Witnesses:

ORVILLE C. ROBINSON, FRANK GooDFELLoW.