US991215A - Filter. - Google Patents

Description

:r. KUHAJDA. f

FILTER. APPLICATION FILED 11017.12 1910.

Patented May 2, 1911.

WITNESSES ATTORNE I "1: NORRIS PETIR: c0 wusuuvcron. n. c.

, claims and JOSEPH KUHAJDA, OF NEW YORK, N. Y.

FILTER. 5 '1 i Specification of Letters Patent.

Patented May 2, 1911.

Application filed. November 12, 1910. Serial No. 592,013.

To all whom it may concern:

Be it known that I, Josnrrr KUHAJDA, a subject of the King of Hungary, and a resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Filters, of which the following is a specification.

The present invention relates to improvements in filters, and has for its object to provide a simple, cheap and effective device to be attached to a faucet or other source of liquid supply.

Another object of the invention is to provide the filter with a filtering medium which can be easily cleansed without detaching the filter from the faucet.

A further object of the invention is to provide a novel and simple filtering medium.

A still further object of the invention is to provide a filter with means, whereby the liquid may be discharged from the faucet without passing through the filtering me dium.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the construction, combination and arrangement of parts hereinafter fully described, pointed out in the appended illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical sectional view of a filter embodying the invention; Fig. 2 is a plan view of the two disk strainers of the device; and Figs. 3 and 4 are front elevations of the filtering medium shown in different ositions.

Referring now more particularly to Figs. 1 to 4, inclusive, the numeral 10 designates the base of the improved filter, and the numeral 11 the cover of the same. Seated in a suitable seat formed in the upper face of the base 10 is a receptacle 12, preferably made of glass, and upon which rests the cover 11. This cover is provided with an inlet 13 leading to the interior of the receptacle 12, while the base has an outlet 11 leading from the receptacle, The base, receptacle and the cover are held together by means of a perforated tubular member 15, having outer screw threads upon its lower end 16 and upon its upper end'17, which mesh with screw threads formed upon the base and cover, respectively. Within this tubular member 15 is arranged the filtering medium, which consists of a helical spring 18, the outer diameter of which corresponds exactly to the inner diameter of the tubular member 15. This spring is attached in any suitable manner to the upper end of the tubular member 15, and is provided along its entire length with teeth or prongs 19 in such a manner that the prongs of one coil contact normally with the lower edge of the next coil. It will be easily seen that, if these teeth or prongs are small enough, minute holes or perforations, as it were, will be formed between the adjoining coils, freeing thus the liquid passing through the same from the substances mechanically mixed with it. The lower end 20 of the coil is secured to a hollow semi-globular valve 21, which is seated in a spherical extension 22 of the tubular member 15, and is attached to a stem 23, passing through said spherical extension 22 and through the base of the filter. To this stem is attached an operating handle 24:. The tubular member 15 is provided below the spherical extension 22 with a plurality of slots or holes 25. Upon the base 10 is seated a disk 27, which has a plurality of slots 28. Above this disk 27 and contacting therewith is located a shiftable disk 29, also provided with a plurality of slots, indicated at 30, which are adapted to register with the slots 28. Into the slots 30 project a plurality of prongs 31 for a purpose hereinafter to be described. To the disk 29 is secured a handle 32, which extends through an opening 33 in the base 10, whereby the disk 29 may be oscillated relative to the disk 27, which latter is stationary relative to the base of the filter; the glass receptacle 12 resting upon'the face of the disk 27 holding the same in a stationary position. The slots 30 may be radially disposed or may be V- shaped, as clearly shown in Fig. 2 of the drawings, or of any other configuration. Within the helical spring 18 is arranged a stem 34, which is, preferably, rotatably mounted upon a spider 35, attached to or made integral with the tubular member 15 above the spherical extension 22. A worm or substances secreted by the the same and the tacts throughout its length wlth the inner which will be explained hereinafter.

The operation of this device is as follows: Assuming that the filter is arranged upon a faucet and it is desired to draw a quantity of filtered water, and if the parts of the filter are in the positions shown in Figs. 1 and 2 of the drawings, the valve of the faucet is simply opened, whereby the water will enter the helical spring filter l8 and flow through perforations of the tube 15 into the receptacle 12. From the receptacle 12 the water flows through the slots 30 and 28 of the disks 29 7, respectively, toward and through the slots or holes 25 in the tubular member 15 out through the 14 of the filter. Should it be deslred to obtain a quantity of unfiltered water, is given an angular turn of 90, permitting thereby the water to flow filtered water, the filtering spring 18 is expanded when the semi-globular valve 21 is turned 90 since the said spring is connected this shaft and consaid inlet to at its lower end to the semi-globular valve The water entering the tube 15 is forced by the worm or helix 36 into contact with the filtering spring 18 and operates thus to wash and cleanse the same. This expanded position of the filtering spring is indicated in Fig. 4 of the drawings. Since the semiglobular valve obstructs to some extent the spherical extension 22 of th ers will be carried by the action of the running water to the outlet of the filter.

lat I claim is:

1. In a filter, the combination with a resaid outlet and being provided with a spherical extension and with p forations above and below said spherical extension, extension, upper end of said tubular member and to said valve, said helical spring being pro vided with prongs along its length for keeping the coils of said helical spring apart and forming thereby a plurality of minute openings, and means for shifting said valve around its axis, for the purpose specified.

2. In a filter, the combination with a receptacle having a cover provided with an inlet opening and a bottom with an outlet opening, a tubular member leading from said inlet to said outlet and being provided with a spherical extension and with perforations above and below said spherical extension, a valve arranged in said spherical extension, a helical spring attached to the upper end of said tubular member and to said valve, said helical spring being provided with prongs along its length for keeping the coils of said helical spring apart and forming thereby a plurality of minute openings, means for shifting said valve around its axis, and a worm arranged within said helical spring. In a strainer, the combination with a stationary disk having a plurality of slots, of a shittable disk also provided with a plurality of slots which are adapted to register with the slots of said stationary disk, and a pluralit of prongs arranged in the slots of one of said disks, for the purpose specified.

4. A strainer comprising a wire bent in the form of a helical spring, a plurality of prongs formed throughout the length of apart and forming thereby a plurality of openings between said coils.

Signed at New York, in the county of New York and State of New York, this 4th day of November, A. D. 1910.

JOSEPH KUHAJDA.

ceptacle having a cover provided with an in- Witnesses:

let opening and a bottom with an outlet SIGMUND Hnnzoe,

opening, a tubular member leading from S. BIRNBAUM.

Copies of this patent may be obtained for five cents each, by

addressing the Commissioner of Patents,

Washington, G.

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