US1644082A - Filter-cell-washing machine - Google Patents

Description

1,644, Oct. 1927" J' J- E 2 FILTER can. Sim; MACHINE Filed Nov'.6. 1925 2 Sheets-Sheet 1 Oct. 4

1,644,082 J. J. PREBLE FILTER CELL WASHING MACHINE Filed Nov. e. 1925 2 SheetS-Sheet 2 Patented Oct. 4, 1927. 1,644,082

UNITED STATES PATENT OFFICE.

JAMES JARVIS PEEIBLE, OF NEWTON, MASSACHUSETTS, ASSIGNOB, TO SPRAY ENGI- NEERING COMPANY, OI BOSTON, MASSACHUSETTS; A CORPORATION OF MASSACHU- SETTS.

FILTEB-CELL-WASHING MACHINE.

Application filed November 6, 1925. Serial No. 67,263.

The object of the present invention is to provide a washing machine for cleaning dirty filter cells which will be simple in con- The present invention relates to washing machines, and more particularly to a wash ing machine for removing the dust and dirt retained on the filtering, media of an air filter cell. Air filters are now in wide'general use for eliminating the small, solid particles, called dust, floating in a gas, such as atmospheric air or a gas producedjn a manufacturing rocessQ. While innumerable materials "and forms thereof have been proposed heretofore for the elimination of the injurious dust, a standard cell for holding the filtering media has been developed. This standardized cell comprises a metallic box having expanded metal covers for the inlet and outlet openings thereof between which the filtering media is placed and a pair of handles to facilitate the insertion of the cell into and its removal from the bank of cells making up the filter installation. This bank of cells comprises a plurality of the cells arranged in tiers. To maintain the filter installation in efficient operation it is necessary to remove for cleaning a few of the dirty cells at a time and to replace them with clean cells. Usually the dirty cells are removed for cleaning in accordance with a definite schedule. That is, in a filter installation containing, for instance, thirty cells made up five tiers of six cells each, -fi ve dirty cells are removed for cleaning every five The operator engages the handles of. I cells and dips them repeatedly in a bath of hot water and caustic cell weighs thirty pouids and by which the cheap to manufacture,

dirty cell with ease workman may clean the and celerity. v i

To the accomplishment of this object or ob ects, and such others as may hereinafter appear, the features of the present invention relate to certain devices, combinations and arrangements of parts, hereinafter escribed, and then set forth broadly and in detail in the appended claims.

The various features of the invention will be readily understood from an inspection of filter cell,

6 provided ing 5 is surrounded by a flan acilitate hanwith the handles 7 and 8 to dling.

tering media in the 'filter cell comprlses a metal tank 9 supported on legs vided with a cover 11 the flange 12 of which the labor of cleaning the cells is consi rests. on a ledge 13 surrounding a rectanguable. Experience demonstrates that owing .lar opening 14 to the interior of the tank. to this labor the duty of cleaning the cells The bottomof the tank slopes'towards one is often neglected. It has been proposed to corner thereof so that the tank may be wash the dirty cells in a power-driven madrained through a valve 15.

Secured to the ppposite sides of the intechine having a capacity to receive a'pluraljity of dirty cells for cleaning in a single rior of the tank are the bearings 16 and 17 operation. Bearing in mind that only a for a pair of stub shafts 18 and 19 stub shafts are secured respectively to coufew cells are cleaned at a time .with 'intervals of days between cleanin operations,- it plings 20 and 21 carried by the opposite end aces of a holder 22 for the filter cell.

is apparent that the oweriven machine 7 would be usedtoo in equently to warrant The sides 23 of the I 'mit the .hot water and caustic so a with llation. his a fact,

which the tank 9-is artiall filled free acthe expense of its insta however, that it is highly desirable to 'process to the interior 0 the ho der. As shown in Figs. 1 and 3 the holder is of a size to holder are open to pervide some apparatus to relieve the workmen of the'heavy duty of cleaning the dirty cells thus to insure their proper cleanin in strict receive within it the filter cell illustrated in Fig. 2. Th filter cell is inserted by the accordance with the cleaning sch ule.

10 and pro- 1 struction and mode of operation and thus the accompanying drawings illustrating the tering media 1s positioned. The inlet open- The washingmachine for cleaning the fil- The I workman who grasps the handle '8' in one hand and then lowers the cell into the holder.

The cell is clamped in place within the holder by a bar 24 pivoted at one end to the holder and provided at its other end with a slot 25 to embrace a screw 26 pivoted on the holder and engaged by a wing nut for securing the bar 24 in the positions of Figs. 1 and 3.

The holder is rotated to cause the hot water and caustic soda within the tank to surge through the filtering media in the cell by a crank 27 on: the'free end of thestub shaft 19 which extends through the side Wall of the tank 9. The bearing 17 and stub shaft 19 are packed to prevent leakage therebetween by a suitable packing device indicated at 28 (Fig. 3).

It is usually necessary to thoroughly elean the cell to impart t0 the holder a fewrevolntions in one direction when its direction of rotation is reversed in order to rotate it several times in the other direction. To rem'ovethe clean cell it is only necessary to remove the cover 11, unfasten the bar 24 and swing it out of the way.

"mg the rotation What is claimed 1. A filter cell in combination, a tank for washing fluid, a holder rotatably mounted within-the tank and constructed to receive a single filter cell said holder having solid bottom and en faces and open top and side faces, means for barring the open top of the holder for keeping the filter cell within the holder during the rotation thereof, and a device outside the tank for rotating the holder.

2. A filter ce'll washing machine havin in combination, ajtank for washing flui a holderrotatably mounted within the tank and constructed to receive a single filter cell, said holder having solid bottom and end faces and open top and side faces, a bar pivoted on the holder and arran ed to extend across the open top of the older for as new, is:

washing machine having,

keeping the filter cell within the holder dur-.

thereof, means. for locking the -Jaar in keeping position, and a device outsid' thetank for rotating the holder.

In testimony whereof I have signed my name to this specification.

JAMES JARVIS PREBLE.

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