Untitled record

Application filed August 8,

To all whom it may concern:

Be it known that I, Sigmund L. Goldman, a citizen of the United States,. residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Supporting Frames for Filter Bags, of which the following i§ a specification. ₍

The present invention relates to supporting frames for filter bags, and will be readily understood from the following description illustrated by the accompanying drawings, in which—

Fig. 1 is a sectional view through the device, illustrating it in use and with a filter bag supported thereon, and

Fig. 2 is a detail perspective view of the upper end of a leg of the device.

Referring more particularly to the drawings, the numeral 5 indicates a ring, which may suitably be formed of heavy gauge wire. Pivotally mounted upon this ring are a plurality of legs 6, the number of which may suitably be three or more. At their lower ends these legs are each provided with a clamping hook 7, which may suitably be adjusted to engage the rims of receptacles of different thicknesses. At their opposite ends, and above their pivotal support upon the ring 5, the legs 6 are each provided with an engaging hook 8, which may suitably pass through openings or eyelets 9 in a filter bag 10, thereby supporting the latter. The angular divergence of the legs 6 may, of course, be varied in accordance with the diameter of the receptacle upon which the filter bag is to be supported.

In its preferred form, the legs 6 are constructed of sheet metal strips. At one end the strip is split, and one or more split portions are curled over, as indicated at 11 in Fig. 2, to form the pivotal bearings for the leg upon the ring 5. Another split portion is bent to form the hook 8. A t its other end, the strip is bent into sigmoid form, and the downwardly-opening portion of the curve thus formed provides a resilient clamping hook which engages over the rim of the vessel upon which the support is mounted. This clamping hook is resilient, but is likewise capable of being bent so that the opening may be made wider or narrower for use with thick or thin-walled receptacles.

The legs 6 are slidable upon the ring 5

1921. Serial No. 400,39’7.

as well as pivoted thereon, and hence may 55 be spaced apart any desired distance, or may be brought together and turned inward, thereby collapsing the entire device into small compass.

Although the present invention has been 60 described in connection with the details of a specific example thereof, it is not intended that these details shall be regarded as limitations. upon the scope of the invention, except in so far as included in the accompany- 65 ing claims.