US1358635A - Mandrel for forming receptacles from fibrous material - Google Patents

Description

MANDRELFOR FORMING REGEPTACLES rnom nsnous MATERIAL. APPLICATION FILED F8.21, 1920.

1,358,635 Patented Nov. 9,1920.

i 25 ceptacle which it is desired to make.

UNITED STATES, 7

MILTON E. HANSON, OF POUGHKEEPSIE,

' BAKER, SECRETARY PATENT OFFICE. 1

NEW YORK, ASSIGNOR TO NEWTON" D. or WAR,-TRUSTELE. J

MANDREL For; FORMING RECEPTACLES FBQM FIBROUSMATER -I AL Specification of Letters Patent.

, Application filed February .21, 1920f SjerialINo. 3 0,428.

rrtianunnnn THE. Aer or MARCH 3, 1883, easm'rlt eas.)

To all tvhoinit concern l' Be it known that I, -M1L'roN E. HANSON, a citizen of the. United States, residing in Poughkeepsie, New York, have invented dihprovementsin Mandrels for Forming Receptacles .-from. Fibrous Material, of which the following is a specification.

The invention" described herein 'may be used by the Government, or any ofits ofiicers or employees, in prosecution of work for the Government, or by any other person in the United" States, without payment of an royalty thereon.

his invention relates to devices for forming receptacles of fibrous material and more specifically'vessels capable of serving as-air, gas or smoke filters; These filters may be used for removing dust, smoke, solid part1cles,-bacter1a, steam and toiiic substances from air which becomes highly purified'after passing through the same. 1

Among the objects of this invention isto provide a device whereby, the fibrous ma- 'terial willbe formed upon a cage having a a .to provide a mandrel with a perforated tube,

shape conforming to the interior of the re- A furtherobject of this inventionis to providemeans whereby the felt'may be relieved of the waterv contained therein by means of suction, the suction also serving to compress and pack the fibers closer together.

A more specific object of'this invention is Substantially"centrally located, this perforated tube having vanes radiating therefrom, the vanes serving to provide separate compartments between the perforated tube and aperforated cage fittingover the frame,

the vanes alsoserving t'o direct the water.

within the mandrel cage toward the central a perforated tube as the mandrel revolved around its horizontal axis', thus permitting the water to be sucked out through the peras shown in F ig. (2).

lg. 3 shows the cage (9) placed over the; structure formed by the perforated tube (1) drel, having the perforated cage attached to the frame, which is a different modification from that shown in Fig. 1. In this view a portion of the cage is broken away to Patented Novl 9, 1920.

Fig. 2 is an end view .of this mandrel frame. I l ,Fig. 3 is alongitudinal view of the manshow the construction of the mandrel frame.

Fig. 4 is'an end view of the device shown inFig. 3.

Figs. 5 and 6 show in a diagrammatic manner the two types of mandrel frame in operatingpositions. p

I Referrmg to F ig. 1, there is shown a perforated tube (1) of thin metal soldered into a pipe nipple (2) which screws into a cap (3), said cap being-also threaded at (4:) so as to permit its attachment to a source of suction. It should be understood that the perforated tube, nipple and cap can bemade integral instead 0 in sections as shown. Aroundpipe nipple (2) there is mounted a box affair or housing (5)'whichis fashioned to take the shape of the inside of the'filterr The nipple'runs substantially through the center of this box. On the perforated metal tube '(1) .there are mounted metalsheetsrorvanes (6) and the structure formed by' these also conforms to the shape of the box (5)..

These vanes are radial; and "longitudinal,"

while the, vanes (7 inthe modification I shown in Fig. 3 are circumferential. The

tube (1) may have its end perforated,

and vanes (7). This cage consists of a metal can having the bottom and wall perforated and having nearits open end a flange (10), said flange'serving as a sto against which the fibrous material can sett eand thus produce a square edge all around the mouth of the receptacle formed. on the. portion (9) of this cage. The extension (11) above the flange (10)v is not perforated,'and when the ,cage is in position, this portion (11).

fits over-thebox (5). In order to make the structure air-tight, and to permit the use of suction, an elastic band (12) is used to' closethe'joint between the cage and box (5). In both modificatlons the vanes serve .also as guides and bracesfor the cage.

.When cage (9) is placed over a structure, such as shown in Fig. 1, the vanes (6) radiating' longitudinally from the perforated tube (1) and reaching the wall of the cage.

will form separate compartments (illustrated in Fig. 5). When this mandrel is in use it is placed in the furnish with the water line reaching above the axis of the mandrel, as shown in Fig. 5. As the mandrel revolves, and suction is applied throu h the central perforated tube (1), the felt Wlll collect upon the outside of the cage and gradually build up. The suction serves to relieve the felt of its water and also to pack the fibers of the felt together. The vanes (6) serve as. channels for any water which v may be drawn through the perforated cage and-felt formed thereon and the water from one of these channels or compartments is not permitted to reach any of the other-comtacle is attained, the water is sucked out.

therefrom and the receptacle removed from thecage.

The present invention is not limited to the specific details set forth in the for'ego ing examples which should be construed as illustrative and not by way of limitation,

and in view of the numerous modifications A which may be effected therein'without departing from'the spirit and scope of this invention it is desired that only such limitations be imposed as are indicated in the appended claims.

I claim as my invention:- r 1. A mandrel for making receptacles from fibrous material comprising a frame having 'an inner core formed of perforated sheet material, a perforated cage fitting over and In the modification shownin Fig. (3),-

detachable from said frame and vanes upon said core extendlng to the Walls of said cage, sald vanes serving as guldes and braces for :the perforated cage.

2. A mandrel for making receptacles from fibrous material comprising a conduit having one part perforated and the other part termlnating in a cap, vanes upon the perforated portion-of said conduit and a detacha-ble cage having perforated bottom and wall fitting upon said conduit and vanes. 3. A mandrel for making receptacles from fibrous material comprising a frame having a conduit with one part thereof perforated and the other. part extending through a housing and fitting into a cap, vanes upon said perforated portion of said conduit and a detachable perfor'ated'cage fitting over said conduit and to said housing.

4:. A mandrel for making receptacles from fibrous material comprising a frame having an inner core formed of perforated sheet material, a perforated cage fitting over and detachable from said frame and longitudinal,- radial vanes upon said core extending to the walls of said cage, said longitudinal, radial vanes serving as guides and braces for the perforated cage and forming separate compartments from each other. I

5. A mandrel for making receptacles from fibrous material comprising ,a conduit having one part perforated and the other part termlnatlng in a cap, longitudinal, radial vanes upon the perforated portion of said conduit and a detachable cage having perforated bottom and wall fitting upon said conduit and vanes.

6. A mandrel for making receptacles from fibrous material comprising a frame having a conduit with one part thereof perforated and the other part extending through a housing and fitting into a cap, longitudinal,

radial vanes upon said perforated portion of said conduit and a detachable perforated cage fitting'over said perforated conduit and to said housing. a

1 MILTON E. HANSON.

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