US300367A - Filter - Google Patents

Description

(No Model.) n

' B. HOLLAND, J1.

FILTER. No. 300,367. Patented Junev 17, 1884.

UNITED STATES PATENT trice,

BENJAMIN HOLLAND, JR., Ol'14 PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE-HALF TO THOB'IAS S. NOVELL, OF BOSTON, MASSACHUSETTS.

FiLTER.

SPECIFICATION forming part of Letters Patent No. 300,367, dated June 17, 1884.

Application filed July 1G, 1883.

(No model.)

l end of the shell A. Y A thick piece of felt 5o such as that herein employed is most efficacious as a filtering substance, and acts to State of Rhode Island, have invented an lm- 5 provenient in Filters, of' Which the following i description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

The object of this invention is the produc [o tion of a simple, serviceable, and efficacious filter, adapted to be readily applied to a faucet or pipe from which ivatcr issues which it is desired to strain or purify.

)Iy improved filter consists, essentially, of

i5 a metal shell having an internal foraminous shelf cast therewith, so as to form chambers above and below the said shelf, a cover or cap screwthreaded to engage a screwthread on the shell to connect the two, and a disk of 2o felt or textile filtering substance placed on the shelf and held in place by the said cap or cover screwed down upon it, all ashereinai'ter particularly described and claimed.

lThc drawing represents in vertical section a filter embodying my invention.

In thcsaid drawing, A represents a cast-nietal shell, having an outlet, B, and provided at its upper end with a screw-thread, C. The shell A has a foraminous shelf, D, cast with 3o and forming an integral part of the same. To

form this shelf by casting, the mold will contain cores of' suitable shape to enable the production of' chambers above and below the shell. The shelf D, being cast with part ofthe shell A, greatly stiffens the same, and makes a more solid, compact, and firm filter than were the shelf composed of wire gauze or other reticulated material supported upon a shoulder or seat made within the shelf, and,

4o being made integral with the shell, the cost of the filter is thereby reduced, and all liability ot' losing the shelf or of' bending the same inj uriously or accidentally into one or the other ofthe chambers of the shell is avoided. "he

filtering substance employed is a piece of felt cloth, l5, of a shape externally to just iitv the interior of the shell A, and rest against the top of the shelf coveringits holes 2,Which are formed by drilling the shelf through from the large t through it.

thoroughly strain and remove foreign particles from the water or other liquid passing The sediment and foreign particles arrested and collected in the chamber about the shelf' and at the upper side of the felt maybe readily washed out and the felt cleansed by occasionally reversing the felt. The' upper end of the shell A is closed by a cap or cover, Gr, screw-threaded at c to engage the screw-thread C of the shell, and also threaded at I) to engage suitable screw-threads of the bib,vfaucet, or pipe with which the filter is to bc connected. This cap has a iiange, c, to cooperate with a packing, e, interposed between it and the end of' the shell A, and a second flange, f, to receive upon it a packing, g, to abut-'against the end of the bib, faucet, or pipe. cap or cover is extended into the shell A far enough to act upon and hold the felt or filtering material E down closely upon the shelf'.

Instead of felt, I might employ other thick textile fabric. The cap or cover G, circular externally, has a hole, a', to receive the prong of a suitable Spanner, by which to turn the lter upon the bib, faucet, or pipe.

l claim- Tlie combination and arrangement, substantially as shown and described, in a filter, of the shell A, having the internal forami` nous shelf, D,cast tlicrewitli,and forming chambers above and belovr the shelf, the attaching cap or cover G, screwthreaded to engage an internal screw-thread in the shell to connect the two, and the disk of felt or textile filtering substance E, supported by the said shelf, and held in place by the said cap or cover screwed down upon it, as set forth.

In testimony Whereofl have signed my name to this specification in the presence of two subscribing Witnesses.

BENJAMIN HOLLAND, Jn.

`Witnesses XV. H. Sres'ron, G. YV. GREGORY.

The screw-threaded fiange of the c

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