US1041915A - Filter. - Google Patents

Description

L. D. VAN VALKENBURG.

FILTER.

APPLICATION FILEDJAN. 18, 1912.

1,0413 1 5. Patented Oct. 22, 1912.

" A TTORNEY.

LEVI D. VAN VALKENBURG, OF HOLYOKE, MASSACHUSETTS.

FILTER.

Specification of Letters Patent Patented Oct. 22, 1912.

Application filed January 18, 1912. Serial No. 671,904. I

To all whom it may concern Be it known that I, LEVI D. VAN VALKEN- nuns, a citizen of the United States of America, and resident of Holyoke, in the county of Hampden and State of Massa chusetts, have invented certain new and useful Improvements in Filters, of which the following is a full, clear, and exact description.

This ,invention relates-to improvements in small filtering devices of a'kind whichare adapted for a screw connection .with a faucet.

An object of the invention is to provide.

improved means of construction whereby an eflicient filtering device may be produced by simple and inexpensive construction.

Another object is to provide means, opera tive externally of the filter, whereby the screen-frame which constitutes the filtering. medium in the device may be overturned for half ofa revolution so as to be self clearing of sediment or impurities collected thereon.

Another object is to provide means where by in the semi-revoluble movements of the screen-frame the'latter will be held in its positionsquarely across the passage through the filter body. v

Another object is to so construct and combine the parts that leakage of water is prevented through the sides of the body ,or the I points penetrated by the transverse rotative shaft on which the screen-frame is mounted. And ,other objects are attained in and by the special construct-ion of the device and parts thereof as will hereinafter be rendered apparent.

The invention is described. in conjunction with the accompanying drawings and is set forth in the claims.

In the drawings :-Figures 1 and 2 are central vertical section's of-the filter on an enlarged scale as taken on planes at right angles to each other, these views showing reversals of the position of the screen-frame. Fig. 3 is an elevation at the side of the filter atwhich the screen operating handle is lo.- cated. Figretis a horizontal cross sectional view on line 4-4, Fig. 2. Fig. 5 is a still further enlarged sectional view showing the construction of the screen frame.

Similarcharacters of reference indicate corresponding parts in allof the views.

In the drawings. A represents the filter body which is made of tubular form, internally screw threaded at its upper end and having the opening thereof somewhat contractedto form an approved delivery nozzle. B represents the screen frame, and C the shaft by which it is carried, and which shaft is transversly journaled through-an intermediate portion of the tubular body. The said shaft for almost the entire length thereof is of a square or equivalent polygonal form, and the holes a a through the opposite sides of the tubular body are round and of diameter suflicient to permit of the rotation of the shaft in its bearings therethrough. V

The screen frame which performs the filtering of the water passing through the device consists of a ring 6 made with a seat or ledge d and with an integral portion having its location outwardly beyond the ledge formed thinner than the ring proper to produce an annularllip f; and the screen or gauze g resting on the ledge and confined thereon by angularly turning the lip as clearly shown in Fig. 5. The ring of the screen frame has diametrically opposite square holes h It therethrough, through which the square shaft is engaged.

The holes a a in the opposite sides of the body are surrounded at their outer ends by countersunk depressions 2'- i in which polygonally apertured disks y j are set, said disks being penetrated by portions of the shaft C which closely fit through them, so that while such disks form closures against leakage through the opposite shaft bearing holes a a, they rotate as one with the shaft and prevent no obstruction to the movements of the latter.

The shaft has a handle member D at one end, the inner portion of which,that lying in proximity to the side of the filter body,- is of the form of a blade or fin and the portion of the filter body next. outside of the disk j hasa depression or niche is which is radial to the axis of the handle provided shaft, so that the inner blade like edge of the shaft handle may have a detent engage inent therein for preventing the tilting of the screen frame away from its position as a filtering partition squarely across the passage through the filter body, excepting when the shaft is purposely rocked through means of the handle The shaft on its end opposite the handle has screw threads cut thereon with which engages a bonnet or knob F made with a chamber at opening to its inner end while within the wall cl0sing its outer end is a" screw tapped socket of smaller diameter than the chamber, and leading endwise from the latter. A helical spring I? encircles the end portion of the shaft and is inclosed, practically concealed and held in compression by the chambered screw knob or bonnet. As the construction is viewed in Fig. the spring reacting on the shaft in a direction to the leftward,

forces the blade shaped handle firmly against the right hand disk j, keeping the latter closely seated in the depression 1' therefor, such spring force being also effective for maintaining the inner blade like portion of the handle engagedin the shallow radial. niche is, and the spring in its direct reaction against the little left hand disk holds that one closely seated in the circular depression therefor. The construction is such that a slight endwise movement of the shaft is permitted diametrically of the filter body, and relatively to the screen frame when the shaft is to be rotated for overturning the screen frame so that the disengagement of the inner edge portion of the handle in the radial niche is permitted.

Although the circular holes a a through the opposite sides of the filter body are not entirely filled by the portions of the squared shaft which pass therethrough, the disks 1' 3' having the square openings tightly fitted by the shaftconstitute ample means of closure against the passage 0f water later-v And as ally from the filter body assage. may be erceived, the entlre device is constituted ysev'en parts, all of which are of extremely simple form and susceptible of production at low cost, and easy of assemblage,the seven parts consigting'of the tubular filter body, the strainer frame, the shaft, the pair of' pol gonally apertured disks, the spring and the bonnet.

I claim 1. In a device of the character described,

in combination, a tubular body having diametrically o posed axially h0riz0ntal jdurnal holes erethrough with countersunk depressions -atrtheir. outer ends, a screen frame within the body having alinedp'olygonal openings therethrough, a polygonal shaft engaged through the screen frame, polygonally aperturcd disks through which the shaft is engaged and which are disposed in said circular depressions,the said shaft having a handle enlargement at one end in engagement against one of the disks, and means operative on the shaft for bolding it with its handle member in engagement with one of said disks.

2. In a device of the character described, in combination. a tubular body having diametrically opposed axially horizontal journal holes therclhrough with countersunk depressions at their outer ends, and having a further depression radially relatively to one of the countersunk depressions, a polygonal shaft and a screen frame having openings corresponding to the cross sectional shape of the shaft and through which the latter is engaged. polygonally apertured disks through which the shaft is engaged and which are disposed in said circular depresshms,-thc said shaft having a handle at one eu-zi made with a blade shaped portion for engagement in and radial depression and a spring exerting an endwise force to the shaft for yieldingly maintainin the blade-like portion of the handle in said depression.

3. In a device of the character described, a tubular body having diametrically opposed journal holes therethrough and a depression adjacent and radial to one of said holes on the outer side of the body, a shaft extending transversely of the. body through said holes having at one end a handle provided with a blade-like portion for engagement in said radial depression and having its oppositcend screw threaded, a screen frame within the casing mounted on said shaft, an internally chambered bonnet engaging on the threaded extremity of the shaft and having a spring inclosed and in reaction therein between the side of the easing and the wall of the chamber in such bonnet.

4. In} device of the character described, a tubular body constructed for attachmenton a faucet, a shaft transversely rotatively mounted in the body and a screen frame carried by said shaft within the casing and consisting of a ring made with a seat or ledge and an integral portion of such rin outwardly beyond such ledge forme thinner than the ring proper to produce an annular lip, a screen resting on said ledge and confined thereon by the angularly turning of said lip, and means externally of the casing for rotatively moving said shaft.

5. In a device of the character described, in combination, a tubular body constructed for attachment on a faucet, a shaft, transversely and rotatively journaled through an intermediate portion of the body carrying I ment of the shaft from the screen frame and a. screen-frame therein and having at one i from the body. 0 of its extremities a shoulder in sidewise eni Signed by me at Springfield, Mass, in gagement against the body, and a bundle presence of two subscribing witnesses. member adjacent the body, provided at its LEVI D. VAN VALKENBURG. other end with spring means for drawing Witnesses:

the shoulder against the body, and detach- WM. 8.. BELLOWS,

able means for preventing the disengage- G. R. DRISCOLL.

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