USRE8584E - Improvement in gravy-strainers - Google Patents

Description

, 2 sheets-sheet 1.

J. SGHEIDBR,

Assignof to L. INGERSOLLL Gravy-Strainer.

Reissued Feb. 18,1879.

N. PETERS, PNOTO-LITHOGRAPHER, WAsmNGTcn, n c

2 Sheets-Sheet, 2Q

LSCHEIDER, Assignor to L. INGERSOLL. Gravy-Strainer.

N0. 8,584. Reissued Feb. 18, I879.

mPE ERs, vuoramnocw nin. WASHINGTON. D, c.

To all whom it may concern:

Be it known that I, J OSEPH SOHEIDER, of the city, county, and State of New York, have invented a new and useful Improvement in Gravy-Strainers, which improvement is fully set forth in the followingspecification, reference being had to the accompanying drawin gs.

All gravy-strainers, in order to be useful, 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 out 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 different 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-strain ers) 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 except that hereinafter described, unless very heavy metal and great power in stamping areused, 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 lines 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 light- UNITED STATES PATENT OFFICE.

JOSEPH SOHEIDER, OF NEWYORK, N. Y., ASSIGNOR TO LORIN INGERSOLL.

IMPROVEMENT lN GRAVY-STRAINERST Specification forming part of Letters Patent N 0. 198,999, dated anuary 8, 1878; Reissue No. 8,584, dated February 18, 1879; application filed January 18, 1879.

est and least expensive material upon the market, known as I. 0. tin.

My invention, therefore, consists of a gravystrainer stamped out of a single blank of m etal, with perforations through the bottom of the same, and the curve of the side of which 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 drawings, which represent a vertical section, and the depression 1), be thus described, "in: 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 starting-point 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 z, until it reach es the center of the bottom 9, and, passing through said center, it then ascends the opposite side in curves similar to those described, but in reverse order. The space from a 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 handwork and soldering I am able to make a much deeper, heater, lighter, and stronger gravystrainer 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 diesone for forming the cup and one for making the perforation-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 j ust above the perforations, there may be a very slight depression, 1), Fig. 2, from the outside, into which fits and is soldered the edge of the foot 13. The strainer is then completed by wiring the edge at A and soldering or riveting on the handle 0.

I am aware that wash-basins have been made out of sheet metal, as shown in the patents of J. O. Knoepke, May 15, 1866, Win. Bradley, August 27, 1867, John Gilbert, March 24, 1868, Wm. Westlake, December 19, 1871, and J. Hamilton, July 17, 1877.

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 not stated. That of Westlake has a flat 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 are 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 for the purpose of my inventioh, and I disclaim all these forms.

What I claim as my invention, and desire 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 1 of long radius near the rim and near the center 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 describech 3. A gravy strainer consisting of a cup stamped out of a single piece of metal, perforated at the bottom, and having a suitable handle, 0, the said cup 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, substantially as described.

JOSEPH SGHEIDER.

Witnesses P. NOLAN, CHAs. G. M. TnoMAs.

Images