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Publication numberUS1261558 A
Publication typeGrant
Publication dateApr 2, 1918
Filing dateAug 31, 1915
Priority dateAug 31, 1915
Publication numberUS 1261558 A, US 1261558A, US-A-1261558, US1261558 A, US1261558A
InventorsThomas C Lackland
Original AssigneeThomas C Lackland
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1261558 A
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Description  (OCR text may contain errors)




1 ,26 1 ,5 5 8. Patented Apr. 2, 1918.

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APPLICATION man Aua.3|. 1915.

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my@ M y MM Z ...wo w a s. j 5 5 2, WM/fm l w s nanna orare THOMAS C. LACKLAND, OF NORFOLK, VIRGINIA.


Specification of Letters Patent.

Patented Apr. 2, 1918.

Application led August 31, 1915.4 Serial No. 48,289.

To all whom t may concern:

Be it known that I, THOMAS C. LACKLAND, a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented new and useful Improvements in Filters, of which the following is a specieation.

My invention relates to lters, and more particularly to a portable water filter which is adapted to be attached to the ordinary water cock or faucet.

In carrying out my invention it is my purpose to provide a filter which is adapted to accommodate a filtering material such as paper, which may be frequently changed without incurring great expense. In order to permit the ready application and removal of the filtering paper I have constructed a casing or shell which comprises two hemispherical sections, one of which rigidly supports the ltering paper therein, the confronting edges of the sections being detachably connected so as to facilitate the separation of the sections and permit the ready substitution of a new filtering material.

Another purpose of my invention is to provide a lter so constructed as to permit the same to be rapidly applied to and removed from a faucet.

With the above and other objects in view, the invention consists in the features of construction, combination and arrangement of parts hereinafter' described and claimed, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of my device showing it applied to a faucet;

Fig. 2 is a vertical section;

Fig. 3 is a horizontal section;

Fig. 4c is an enlarged collective view of the filter, showing the sections in perspective;

Fig. 5 is a top plan view of the perforated plate supporting member for the filtering paper; and

Fig. 6 is a horizontal sectional View of the metallic ring.

Fig. 7 is a fragmentary view of the inner wall of the upper semi-spherical member showing the inclined slots formed therein.

Referring to the drawings in detail, the body of the filter consists of two hemispherical members, l designating the upper member and 2 the lower member. The upper member is provided with a centrally arranged nipple 3 which is split longitudinally, as at 4. Mounted upon the nipple and capable of sliding movement thereon is a clamping nut 5. To secure a rigid water-tight connection between the nipple and the nozzle of the faucet 6 I have provided the inside of the nipple with a short flexible pipe 7, such as rubber or the like, of a corresponding length and which is adapted to normally lie contiguous to the inner wall of the nipple, whereby upon upwardI movement of the clamping nut 5, owing to the longitudinal splits, the nipple will be compressed, thereby causing the pipe to snugly engage the nozzle of the faucet. Mounted upon the inner wall of the upper member adjacentl the lower edge thereof are an annular series of ribs 8 which have the confronting ends thereof spaced to form entrance slots 9. The upper edges of the ribs are inclined, as at 10, from one end to the opposite end. Arranged above the annular series of ribs 8 is an annular rib 11 which is provided with thickened portions 12 adjacent each of the ribs 8, said portions having the lower edges thereof inclined in the opposite direction to the adjacent edge 10 of the ribs 8 and cooperating with the same to form inclined slots 13.

The lower end of the lower member 2 is provided with an outlet 14; arranged centrally thereon and in axial alinement with the nipple 3 on the upper member. |The outer wall of the upper member is provided with a series of laterally extending lugs 15 adjacent the upper edge thereof, said lugs being adapted to work within the inclined slots 13 when connected to the upper member. In the present instance I have shown four lugs upon the lower member which correspond to the number of slots formed in the upper member, and I wish it to be understood that any number of slots or lugs may be used. As will be hereinafter described, the lower member is provided with operating handles 16 adapted to be used when moving the lugs within the slots 13 to lock the hemispherical members together. Formed upon the inner wall of the easing are a series of vertically extending ribs 17, which have their upper ends thickened to form a support, said ends terminating at a point adjacent the upper edge of the hemispherical member. These vertically extending ribs are arranged at diametrically opposite points and rigidly support a perforated disk or plate 18, the enlarged portions of the ribs engage the marginal edges of the disk. Mounted upon the disk 18 and engaging the m rvinal edges thereof isV a metallic annular ring 19 which is l shaped in cross section and which has the horizontal flange thereof engaging the inner wall of the lower member, whereby a substantially U-shaped channel is formed to receive a rubber washer 20 which is rectangular in cross section, in this construction it will be seen that a perfectly water-tight connection is formed between the upper and lower members when they are in their locked position, the rubber washer serving to prevent escape of the liquid between the confronting edges of the members. Arranged upon the top surface of the disk 1S is the filtering material, it being, in this instance, a sheet of porous paper 2l, of a shape corresponding to that of the disk, the marginal edges of he sheet lying beneath the ring 19 so that the same will be held securely upon the disk against the force of the water.

lt will be seen from the foregoing construction that when it is desired to assemble the parts as shown in F ig. l, the disk 18 is placed upon the vertically extending ribs 17. rlhe filtering material is then arranged upon the disk so as to lie contiguous thereto. llhe ring 19 and the washer 2O are then applied to the marginal edges of the paper, as has been previously described, whereupon the hemispherical member is moved in a position so as to cause the lugs l5 to register with the entrance slots 9. Upon moving the member upwardly and imparting partial rotary motion thereto by the operating handles 16 the lugs will be moved circumferentially into the inclined slots 18, whereby the confronting edges of the respective members will be brouo'ht intov tight engagement with each other and the members securely locked. lt will be noted that the anmnar rib ll is of such a width as to form an abutment for the washer 2O when the members are in their locked position whereby a water tight joint will be formed between the members and any escaping of the liquid through the confronting edges of the members will be prevented.

From the foregoing construction it will be seen that the filtering paper may be readily applied and removed from the casing and that the lower member may be quickly attached to the upper member without the use of nuts, bolts or the like. When it is desired to replace the filtering paper or clean the interior of the casing, by imparting a reverse rotary motion to the member the lugs will be withdrawn from the slots, whereupon the members may be separated.

W hen it is desired to apply my improved form of filter to a faucet of the common construction the nozzle of the faucet is inserted into the rubber pipe 7, and the clamping nut is then moved upwardly, whereby the split sections of the nipple will be moved toward each other, thus causing the pipe to tightly engage the nozzle and securely hold the filter upon the faucet.

lfn use, the water flowing in at the nipple strikes the 1paper sheet of filtering material, whereby the water is distributed over the entire surface of the sheet. rlhe water then percolates through thc paper, filtering the same of sand, dirt or the like and finally through the perforated disk, the disk serving to retard the force of the water so that the filtering material will thoroughly strain the water. rhis disk further serves to form a rigid support for the paper 'and prevent the latter from being broken and disintegrated by the force of the water thereupon.

Having thus described my invention, l claim:

ln a device of the character described comprising a pair of substantially semispherical members, means for coupling said members together comprising lugs extending outwardly from the periphery of one of said members adjacent its open end, the inner periphery of the other member being gnovided with vertical slots extending from its open end and communieating with upwardly inclined slots, the highest points of said inclined slots also communicating with said vertical slots, an inwardly extending annular flange on said second named member, an L-shaped ring supported within said lirst named member and contacting with its inner periphery, and a resilient ring rectangular in cross section disposed upon. the horizontal portion of said L-shaped ring and engaging the inner periphery of said first named member and extending beyond the open end thereof and engaging said flange said lugs being engageable in said inclined slots by upward and partial rotary movement of said first named member.

ln testimony whereof l alhx my signature in presence of two witnesses.

HARRY lvl/. CHAPMAN, C. M. Essen.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,4

Washington, n. o.,

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2754001 *Jul 13, 1954Jul 10, 1956Raymond E StadelmanPocket filter
US2808937 *Nov 26, 1954Oct 8, 1957W M Sprinkman CorpFilter
US3208595 *Nov 8, 1962Sep 28, 1965Min I SoftWater softening device
US5064542 *Mar 8, 1990Nov 12, 1991Technicon Instruments CorporationCylindrical filter to trap fibrin
USRE35316 *Nov 2, 1992Aug 27, 1996Bayer CorporationFlowing fluid sample through cylindrical filter with multiple longitudinal passageways to entrap fibrous matter which can be dislodged by backflushing
U.S. Classification220/4.21, 210/449, 220/301, 210/451, 285/376, 220/304
Cooperative ClassificationB65D2543/00296