US80790A - Improvement in strainers - Google Patents

Description

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@uitrit grains atwt @Hirn Lam-S Parma No. 80,790, daad August 4, 1868.

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Be it known that I, WILLIAM WESTLAKE, of Chicago, Illinois, have inventedicertain Improvements in Strainers; and I do declare that the following is a full, clear, and exact description of the construetionnd operation of the same,`referenc e being had to the accompanying drawings, making a part of this specication,

in whichv Figure 1 is a view of thewire gauze, with rim secured thereto.

Figure 2, a top view or the same inserted in a strainer.

Figure 3, a reverse view ofthe same.v

Figure 4, a' section on the line x y. i l V The object of my invention is to provide pieces of wire gauze with a continuous band of metal, the same being cheaply constructed, and easily inserted in and detached from the article with which they are to be used.

To enable others skilled in the art to make and use my invention, I proceed to describe its construction and operation.

A'represents a piece of wire gauze, to the edge'of which I secure a continuous metallic band or rim, a, bent or spun on, so that the wire gauze is firmly secured between the two edges of the band, as shown at fig. 1. From one side of this band a, a ilanch,-b, extends atright angles about one-eighth of an inch. B represents the bottom ofthe pail, or other article, which is to be used as a strainer, having an opening to receive the prepared wire gauze. This opening has a anch, c, somewhat narrower than the anch I), and such opening i must be of such size that the Hauch b will tit snugly therein.

In use, the pail, or otherarticle,l having been provided with a suitable opening, as described, the prepared strainer A is inserted therein from the inside, and, fitting nicely, the joint will be perfectly tight; and when the strainer A becomes .from any cause unfit for use, it can be removed with its band, and another-inserted.

I thus am able to make a removable strainer cheaper tha'n any now in use, more easily adjusted to place, and in'every way superior.

I make the anchc narrower than the anch b, to facilitate the removal of the strainer. Instead 0f inserting the strainerV directly into the pail, a narrow rim or hoop, provided with the proper anch like c, may be soldered to the bottom of the pail, in which to insert the strainer. 'For the trade, the lattermethod will be found convenient. Both parts being made by machinery,laccuraey will be secured. The heat required to solder a metal band. to the wire gauze, injures the gauze. This diiculty I avoid, and also protect the edge of the gauze effectually by spinning on a rim, which laps over both sides of the gauze. I find that zinc can be used for the band'or rim to great advantage, being a soft metal, and it can be pressed instead of spun on to the gauze.

Having thus full describedmy invention, what I claim as new, and desireto secure by Letters Patent, s- The removable strainer A, when constructedand attached substantially as specified.

WILLIAM WESTLAKE.

Witnesses:

E. A. Wiss'r, L. L.V BOND.

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