US1020053A - Filter. - Google Patents

Description

J. D. RAMSEY.

FILTER.

APPLICATION IILBD PEB.28, 1911.

Patented 11111121912.

OLUMBIA PLANoaRAPn ca.. WASHINGTON, n. c.

JOSEPH D. RAMSEY, 0F BOSTON, MASSACHUSETTS.

FILTER.

To all whom 'it may concern:

Be it known that I, JOSEPH D. RAMsnY, a

citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Filters, of which the followin g description, in connection with the accompanying drawings7 is a specification, like letters on the drawings representing like arts.

This invention relates to filters of a type adapted to be interposed in piping, and while it has various other and more general fields of usefulness, it is well adapted for use in connect-ion with bubble drinking fountains and is shown herein arranged for use with such a fountain of a construction as set forth in my co-pending application for Letters Patent Ser. No. 601,565, filed January 9, 1911.

In practice it has been found that in bubble drinking fountain installations many people object to the use thereof, because they cannot see the water or know otherwise whether it is clear and pure before drinking. Further the water as delivered by an 'ordinary city main is apt at times to contain sediment or other solid matter, which if passed directly through the bubble valve construct-ion would clog up the same and render it inoperative.

My invention aims to produce a construction with a relatively large extent of strainer surface, and with a bed of filter material through which the water must pass while the entire device is small enough for location in ordinary piping which may serve as the container casing for the filter, thus dispensing with the necessity for any separate casing, and enabling the filter to be incorporated as a part of the supply conduit to the bubble fountain without any additional piping or connections.

The improved construction further provides for the reception of sediment in a pocket provided therefor beneath the strainer to which pocket the sediment thus naturally gravitates.

The above and other detail features of invention will be fully understood from the following description in connection with the accompanying drawing wherein the figure shows my improved lter in vertical section, its container pipe member being also in section and the connected parts in elevation.

Any suitable source of water supply as for Specification of Letters Patent.

Application led February 28, 1911.

Patented Mar. 12, 1912.

Serial No. 611,523.

instance, a connection from a main is indicated at 10. A section of piping 11 usually in practice about an inch in external diameter is threaded to the delivery end of the supply source 1() and from a lateral nipple 12 thereof, a connection 13 may lead to a bubble drinking fountain 14 as illustrated in my said prior application, this typifying any desired delivery destination for the filtered water. The water supply to the pipe section 11 is controlled by a suitable valve shown as a turning plug 15 interposed in the pipe near the water receiving end thereof, the other end of said pipe being internally threaded as shown at 16 to receive a plug 17 which supports the filter. The plug 17 is shown with a peripheral flange having an annular packing washer 18 adapted to be pressed against the pipe end to make a tight connection when the plug is screwed in place. This plug 17 has projecting upward therefrom a stem 19 to which is secured by soldering or otherwise a cup 20 of relatively thin metal, circular in cross section, and of a diameter to fit quite closely the interior of the pipe 11; the pipe 11 may be, and as shown, is reamed out internally for the main part of its length leaving a slightly constricted neck 21 at the place opposite the filter cup 20. The cup 20 is folded over upon itself at 22 and again bent upward at 23 to produce an upstanding annular neck 24 spaced away from the outer wall to form an annular pocket. Fitted within the annular neck 24 is a thimble 25 having stretched thereover a piece of strainer material such as wire mesh or gauze 26, this strainer material being gripped between the thimble 25 and the annular neck 24, and thus held securely in place. The thimble 25 may be provided with a bail 27 so that it can be readily removed and replaced. A collar or thimble 28 has its lower end formed of a size to fit closely over the annular neck 24 and may, if desired, be split lengthwise to exert a spring clamping action against the same. This collar 28 preferably has its upper portion flared out somewhat as shown at 29, and a cap 30 of wire gauze or other suitable foraminous material is soldered or otherwise secured to the top of said collar, said wire gauze being preferably circular in cross section and enough smaller than the interior diameter of pipe 11 so as to leave an annular space 31 of suicient dimension for the proper circulation of the water in its passage through the device. The cup 20 may be filled with granular charcoal, quartz or other suitable filtering material 32, and has its bottom perforated with a series of small holes as shown at 33.

It is desirable that means be provided for drainage of the container pipe before removal of the filter and to this end a pet cock 34 having a usual valve 35, may be threaded into the plug 17, suitable drainage openings 36 being formed in the plug to open into the pet cock recess 37. Thus when it is desired to remove the filter the turning plug valve 15 may be closed and the pet cock valve 35 opened permitting all the water in the pipe section l1 and in the connection 13 to drain out,`whereupon, the plug 17 may be unscrewed and the entire strainer instantly removed for cleaning or inspection.

It is to be observed that sediment gathering on the vertical sides of the strainer 30 will tend to drop of its own weight and also be washed by the generally downward water movement into the annular pocket 23 where it may accumulate, without in any way interfering with the action of the device and be easily removed when the device is taken out for cleaning as explained. Since the device can, as explained be applied to ordinary or standard piping, forming a part of the regular conduit to the bubble fo-untain or other delivery, this pipingiserving as a container casing for the filter, it follows, that the device can be very conveniently and cheaply installed while the filter itself can be very inexpensively produced, nearly all its elements being either stock parts or capable of being formed as ordinary stampings. The amount of water contained'in the vertical pipe section ll is ordinarily sufficient for the needs of an individual user, and as this will generally stand some little time stationary in this section of piping between the intervals when water is drawn off, most all the sediment therein will be precipitated and drop into the annular pocket 23 before passage to the strainer. Thus in some instances the bed of filter material 32 may be dispensed with, especially where the impurities in the water are mostly of a nature which will readily precipitate by gravity as before explained. Then the filter bed 32 is used it may be readily removed and renewed by merely pulling out the thimble 25 which holds in place the gauze disk 26.

An important advantage resulting from my improved constructionis that sediment and solid matter precipitated from the water in conduit 11v or intercept-ed by the strainer 30, after it drops into the annular sediment pocket 28 orto any point below the top of collar 28 below the path of water movement and remains undisturbed and at rest where it can have practically no effect in contaminating the water, and where it cannot cause trouble by clogging up the strainer.

Having described my invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. A device of the kind described, comprising a vertically arranged conduit having a supply connection at the top, andia delivery connection at its bottom port-ion, a removable closure for said conduit having mounted thereon an annular sediment pocket fitting the walls of said conduit, and a strainer cap mounted to bel also removable with said closure with its straining portion entirely beyond the sediment pocket toward the water inlet, whereby water strained through said pocket may pass through the central hole of said annular sediment pocket without disturbing the sediment therein.

2. A device of the kind described, comprising a closure adapted to be fitted to a supply conduit, an annular sediment pocket carried thereby to fit within the walls of the conduit, and a strainer cap fitted to said pocket with its entire straining portion beyond said pocket whereby water passing through said strainer may flow through the central hole of said annular pocket without disturbing the sediment in said pocket. 3. A device of the kind described, comprising a conduit, a removable closure therefor, having fixed thereon a filter cup to fit the walls of the conduit, an annular sediment pocket facing towardv the water inlet from said cup, and a strainer extending toward the water inlet, and spaced apart from the walls of the conduit and wholly beyond the sediment pocket, whereby water passing through said strainer, flows through the central hole of said annular pocket and thence through said filter cup. i

4. A device of thekind described, comprising a vertically arranged conduit having a water supply connection at its top, and a water delivery at its bottom'portion, and water purifying means removably mounted in the bot-tom of said conduit, the same consisting of an annular sediment pocket fitted to the walls of said conduit, and a strainer cap with its strainer portion wholly beyond said pocket toward the water inlet, said cap being spaced away from the walls of the conduit, whereby water passing through said strainer flows through the central hole of said annular sediment pocket without stirring up the sediment therein, and the device as a whole may be removed for cleanlng.

5. A device of the kind described, comprising a vertically arranged conduit having a controllable water supply to its top and a water delivery near its bottom, and water purifying means removably mounted in the bottom of said conduit, the same consisting of a cup filled with filtering material and fitting the interior Walls of said conduit, a strainer cap removably fitted t0 said cup at the top thereof and spaced apart from the Walls of said conduit, and an annular sediment pocket formed in the upper portion of said cup beneath said strainer cap.

6. A device of the kind described, comprising a vertically arranged conduit having a Water supply from above and a water delivery connection at its lower portion, a closure removably fitted to the bottom of said conduit having a controllable drain passage therethrough, and water purifying means mounted on said closure, the lower part of said means being fitted to the interior Walls o-f the conduit, the upper part being foramino-us and of lesser diameter to leave an annular space between the same and the Walls of the conduit.

7. A device of the kind described, comprising a closure adapted to be engaged With a Vpipe end, a cup filled with filtering material supported thereby adapted to .fit the interior of a pipe, and a strainer cap fitted to said cup and extending outward therefrom, said strainer cap being of lesser dialneter than said cup.

8. A device of the kind described, comprising a closure adapted to be fitted to a pipe end having a drain passage therethrough, a cup filled with filtering material and mounted on said closure and having an annular pocket formed at its upper portion, and a strainer cap of lesser diameter than said cup fitted to and carried by the top thereof.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOSEPH D. RAMSEY. Vitnesses:

CLYDE L. ROGERS, M. J. SPALDING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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