US712360A - Strainer. - Google Patents

Description

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n. H, c AsswELL. STR/UNER. Y (Appucation med am. a.. 1902.)

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i UNITED STATES 'PATENT Orrrcn.

TO WILLIAM ERNEST CANADA.

BURNS, OF VANCOUVER, BRITISH COLUMBIA,

STRINER.

SPECIFICATION forming part of Letters Patent No. 712,360, dated October 28, 1902. `Application filed March 3, 1902. Serial Nn. 96,513. (No model.)

o all whom it may concern.-

Be it known that I, RICHARD H. CAsswELL, a citizen of the Dominion of Canada, residing at Vancouver, in the Province of British Columbia, Canada, have invented a new and useful Strainer, of which the following is a specification.

Myinvention relates to a milk-pail strainer desi gnedto be removably attached `to the outto let or spout of a milk-.pail of ordinary construction. l

The device has several advantageous and novel features of arrangement and construction,which are fully described and illustrated :5 in the following'speciication and the accompanying drawings, in which- Figure l is a vertical longitudinal section through a milk-pail having mystrainer at tached. Fig. 2 is an enlarged longitudinal zo section of the spout, showing my strainer in place therein. Fig. 3 shows the same detached, and Fig. 4 shows an alternative design having only a single straining-cone.

In the drawings, 2 .represents the conical z5 draw from the body of the pail terminating in the cylindrical spout or outlet 3, which is the general construction in pails of this class. Instead, however, of connecting the strainer to the outerend of the spout, as is the common practice, which necessitates the use of a screw connection or similar security topre- Vent the strainer-cap being carried otf by the pressure of the iiow from within while pouring, I place mine in the inner end of the spout 3. By this change I am enabled to dispense with the screw attachment and use a simple socket connection 4, checked against the inner end of 3 by a simple bead or shoulder 4a. I further construct the wire-gauze straining` 4o surface in the fo'rm of a cone, as 5, secured to the socket 4 around its base. By this construction I am enabled to secu re a larger straining area, and by directing the apex ot`- the cone toward the interior of the pail the dust, hair, &c., which it is designed to retain,

are prevented from obstructing the strainingsurface, as such are carried by the flow along the sloping sides of the cone toward its base into the annular pocket 6, formed between 5o the prolongation of the socket-sleeve 4 inward and the conical draw 2 of the pail.

In my preferred construction (shown in Figs. l and 2) I provide outside of the gauze strainer proper,5z'. e. ,to the inside of the pail-a similarly-shaped cone 7 made'of perforated sheet 5 5 metal, the sleeve 8 of which is checked by the opposite side ofthe same bead or shoulder 4a,

which prevents 4 being pressed too far into the spout 3 of the pail. The object of this provision is that I not only obtain a dou- 6o ble strainer, the first of which arrests the coarser dirt, but I am enabled to use for this first strainer-cone 7 perforated sheet metal, which having a smoother surface than wiregauze enables the coarser dirt to slide more freely od it toward the annular pocket 6 before referred to. i

The several advantages of myinternal conical strainer will be manifest to any one having the use of such. They are: a more ef- 7o fective strainer that will retain its efficiency for a longer time in use and can more quickly be removed for cleansing, one that is less liable to damage, as it is not so exposed as when attached to the outer end of the spout, and withal one simpler and cheaper to manufacture than such as require a screw connection.

Although I have designed my strainer for and described it throughout in its application 8o to a milk-pail, the same construction is clearly applicable to many purposes having similar requirements, in which it may be necessary to furnish a further graduation of strainingcones, and I desire my patent to be inclusive of such.

Having now particularly described my invention and the manner of its application,

I declare that what I claim as new, and desire to be protected in by Letters Patent, is 9c l. In a pail of the class described, having an inwardly-projecting conical gauze strainer connected by a sleeve to the inner end of the spout, and a bead whereby a short distance of the sleeve projects within the pail; a further conical strainer attached by means of a sleeve to the inward portion of the sleeve of the first named.

2. In a pail wherein it is desired to strain its contents during pouring from the spout; roo a series of conical graded strainers socketed one within the other and to the inwardly end j eating portion terminating in a conical straining-surface,and a second cone-shaped strainer having an imperforate sleeve, adapted to snugly flt over the inwardly-projecting end of the other strainer-sleeve portion, substantially as shown and for the purposes described.

RICHARD H. CASSWELL.

Witnesses:

ROWLAND BRITTAIN, ELLICE WEBBER.

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