US198999A - Improvement in gravy-strainers - Google Patents

Description

' 2She ets-She et J. SGHEIDER.

Gravy-Strainer.

Patented Jan. 8,1878.

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J'. SGHE I DER. Gravy-Strainer.

No. l.98,999 J Patented Jan. 8,1878;

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UNITED STATES.

Josnrn sonnrnnn, on NEW PATENT OFFIon.

YORK, N. Y,

IMPROVEMENT IN GRAVY-STRAINERS.

' Specification forming part of LettersPatent No. 198,999, dated January 8,1878 application filed y May 24,1877. I

To a-ll whom it may concern:

Be it known that I JOSEPH SCHEIDER, of the city, county, and invented a new and useful Improvement in Gravy-Strainers, which improvement is fully set forth inthe following specification, reference being had to the accompanying drawings.

All gravy-strainers, inorder to beuseful, must be very deep in proportion to their diameter, and therefore they have heretofore been made in the following manner:

The cup has been made of tin, bent into the form of the frustum of a cone, and the edges soldered together, the sides flaring in straight lines... The bottom or strainer has been cut out of a separate piece of perforated tin; and soldered or otherwise fastened in.

Strainers so made have been very costly, owing, first, to the waste of material in cutting the blanks for the cups and for the perforated strainers; secondly, owing to the high price of perforated tin; and, thirdly, owing to the labor of cutting the difierent parts and of soldering them together.

In order to save expense in manufacture, many attempts have been made to produce a strainer by stamping with dies; but it has been found, by many experiments, that a cup having a diameter of about four or five inches, (which is the most useful size for gravy-strainers,) cannot be stamped from a flat blank of metal to a depth of more than about one inch with a die made in the shape of the frustum of a cone, or in that of a hemisphere, or in any shape eircept that hereinafter described, unless very heavy metal and great power in stamping are used, for thinner material will break in the process of manufacture at the side or at the angle formed by the sides and bottom.

I have discovered that by forming the dies with the line of the side from the top or rim to the center of the bottom, and thence to the opposite point on the top or rim in substantially the curve shown in the drawing, the

strain upon the metal is equally distributed,

and a much greater depth of cup can be obtained, and from much lighter and less expensive material.

By my invention I am able to use the lighttate of New York,have.

est and least expensive'material upon the from any point on the rim to the center of the bottom, and thence to the opposite point on the rim,- may, by reference to the drawing,

which represents a vertical section, and the depression b, be thus described, viz: A continuous curve, commencing at any point, A,

Fig. 1, on the rim of the cup, and running at first in a curve of very long radius, such as w w, and at an angle inclined inward about twenty-five degrees from the perpendicular, and taking a shorter radius as it descends, so that the curve is most abrupt at a point nearer the center of the bottom 9, by measurement upon the metal, than it is from the startingpoint on the rim A. The radius of this abrupt curve is represented by y y. The half -way point of the side is represented by d. The curve then again takes a longer radius, 2 2, until it reaches the center of the bottom g, and, passing through said center, it then ascends the opposite side in curves similar to those described, but in reverse order. The space from c to f designed to be perforated thus curves upward at its edges, and is almost horizontal near its center.

By thus substituting the use of dies for hand-work and soldering, I am able to make a much deeper, neater, lighter, and stronger gravy-strainer than has ever been upon the market, and at less than one-half the former cost of production. I am able, with two sets of dies-one for forming the cup and one for making the perforations--to turn out per day about thirty-five gross of my improved strainers, employing only five hands, whereas, by the old method, forty hands would be required to produce as many.

Around the bottom, and just above the perforations, there may be a very slight depression, b, Fig. 2, from the outside, into which fits and is soldered the edge of the foot B.

The strainer is then completed by wiring the edge at A and soldering or riveting on the handle 0. a

I am aware that wash-basins have been made out of sheet metal, as shown in thepatents of J. O. Knoeplie, all/lay 15, 1866, Wm. Bradley, August 27, 1867, John Gilbert, March 24, 1868, Wm. Westlake, December 19, 1871,

and J. Hamilton, July 17, 1 87 7.

Some of these basins are made with dies. Those of Gilbert and Knoepke are the only ones which have any considerable depth; but these have straight sides joining the bottom at a sharp angle, and the method of their manufacture is notstated. That of Westlake has a fiat bottom, which also joins the sides at an angle. The curves are not continuous. .Those of Hamilton and Bradley are very shallow, the sides and bottom of the first forming, practically, the arc of a circle, with sharp depressions, and the second having for sides full quadrants of a circle, with a wide bottom between them.

Dies made in these forms would be useless I to secure by Letters Patent, is-

1.-A '.,gravy-strainer stamped out of a single blank of metal, the line of whose side in any vertical central section being a continuous curve of long-radius near the rim and near the center of the bottom, and of short radius and more abrupt curvature in an intermediate space which is nearer to the center of the bottom than to the rim, substantially as described.

2. A gravy-strainer stamped out of a single blank of metal, having a continuously-curved side, the curve of which is gradual through the first half of the descent from any point on the rim to the center of the bottom, then more abrupt, and then again gradual near the center of the bottom, and having perforations through the bottom of the same piece of metal, substantially as described.

JOSEPH SCHEIDER.

Witnesses GEo. M. BAKER, FRED. L. STINEL.

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