US366556A - brown - Google Patents

Description

(N0 Model.) a Sheets-Sheet 1.

J. H. BROWN.

FIBER DIGESTER.

7 No. 366,556. Patented July 12, 1887.

INVENTOR ATTORNEY 3 Sheets-Sheet 2.

(No Model.)

J. H. BROWN.

FIBER DIGESTER.

P atented July 1 Z, 1887.

@IDGM llVl/E/l/TOR W R BY ATTORNEY (No Model.) a Sheets-Sheet 3-. i

'J. H. BROWN.

FIBER DIGESTER.

No. 366,556. Patented July 12,1887.

'Fflcfb.

WITNESSES C a n //v vnvrog 5y AMMOMUW ATTORNEY UNITED STATES PATENT OFFICE.

JOHN H. BROYVN, OF NE\V YORK, N. Y.

FIBER-DIGESTER.

SPECIFICATION forming part of Letters Patent No. 366,556, dated July 12, 1887.

Application filed March 19, IP87. Serial No. 231,529. (No model.)

To aZZ whom it may concern: I

Be it known that 1, JOHN H. BROWN, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fiber-Digesters, of which the following is a specification.

My invention relates to the construction of digesters, so called, to be used in the process of disintegrating ralnie, pita, yucca, and other fibrous or textile plants or materials by separating the glutinous and other foreign matter from the fiber; and it consists of certain novel features, hereinafter fully described, whereby I obtain an apparatus which is especially adapted to the treatment of long fiber and with superior effect.

In the accompanying drawings, Figure 1 represents a crosssection of a digester cmbodying my invention. Fig. 2 represents a side view thereof, partly in section. Fig. 3 represents a horizontal section thereof. Fig. 4 represents a plan or top view thereof. Fig. 5 represents a horizontal section thereof when made of cylindrical shape.

Similar letters indicate similar parts.

The letter A indicates the body of the digester, which may be square, as shown in Figs. 1 to 4, inclusive, or cylindrical, as shown in Fig. 5, according to the pressure that is to be maintained within the apparatus. Said body A is constructed with outer liquid-distributing chambers, B, and also with a central liquiddistribnting chamber, 0, the latter serving to divide the digester into two chambers, E, both of which are digesting-chambers.

\Vhen the digester is made square, it is constructed with additional outer liquid-distributing chambers, D; but when it is made cylindrical said additional chambers are omitted.

At the bottom of a digester is a storagechamber, G, for the liquid with which the fibrous material is to be treated, and in the example shown in Fig. 1 the three distributing-chambers B B O communicate with the storage-chambers at the lower end, to receive the liquid therefrom. The central distributing-chamber, C, may, however, be closed at the lower end and receive the proper liquid separately from the storage chamber. The inner walls of the outer distributing-chambers, B B, together with both walls of the central distrihating-chamber, O, are perforated at or near the top or bottom, or both, and in the several distributi rig-chambers are arranged heatingpipes I, which may be connected together, or may be separate from each other.

The top J of the digester is removable, and is fitted to the body thereof by a ground joint to insure a tight fit, and for the purpose of fastening said top to the body, clamps K, or any other suitable devices, may be used.

Vhcn the apparatus is applied to use, the fibrous material is placed in suitable crates, and thereby introduced into the digestingchambers E E. The top J is then properly secured and the desired treating liquid or gas is supplied to the distributing-chambers B B C under pressure. Steam or other suitable heating medium is now admitted to the heating-pipes I, thereby not only raising the temperature of the liquid in the distributingchambers, but also increasing the pressure thereof, and as the liquid escapes through the perforated walls of the distributing-chambers it thoroughly permeates the mass of material, due to the relative positions of said walls, they being opposite to each other. One or more of the distributing-chambers may be shut off from the liquid-supply source, thereby revers ing the current through said closed chamber. The spent liquid and waste matter discharges from the digesting chambers E E through safety-valves N, which are connected to said chambers at the top and bottom thereof, and to which in turn are connected waste-pipes O; and the fresh liquid is supplied to the storage or distributing chambers by means of feedpipes P, which are connected to a vessel, Q, (best seen in Fig. 2,) through which the feedpipes may receive steam or water, either hot or cold, or gas, said vessel having suitable con nections for this purpose. Auxiliary feedpipes I may also be connected with digesting-chambers, all of which details are more fully described in a separate application for Letters Patent filed herewith.

If desirable, the top J may be hollow, as shown, and both said top and the bottom of the digester may be perforated to distribute the desired treating-liquid from an upward. and downward direction, the holes of said top ICO and bottom being furnished with plugs to be distributing-oliambers, substantially as shown removed at pleasure. and described.

What I claim as new, and desire to secure 3. In a digester, the combination of a cenby Letters Patent, is tral liquid-distributing chamber having per- 20 V 5 1. In a digester, the combination of a cenforated walls, outer liquid-distributing chamtral liquid-distributing chamber having perbers having perforated inner walls opposite to forated walls, and outer liquid-distributing said' walls of the central chamber, and heatchambers having perforated inner walls op-- ing-pipes arranged in said chambers, substana posite to said walls of the central chamber, tially as shown and described. 2 IO substantially as shown and described. Signed at New York, in the county of New 2. In a digester, the combination of a cen- York and State of New'York, this 15th day of tral liquid-distributing chamber having per- March, A. D. 1887.

forated walls, outer liquid-distributing cham- JOHN H. BROWN. hers having perforated inner walls opposite to Witnesses: 15 said walls of the central chamber, and a stor- CHAS. I. CORNELL,

age-chamber communicating with said outer CHAS. VVAHLERS.

Images