US647809A - Manufacture of pieced tinware. - Google Patents

Description

N0. 647,809. Patented Apr. l7, I900. E. E. DAVENPORT.

MANUFACTURE OF PIECED TINWABE.

} (Application filed Feb. 7, 1900.) (No Model.)

WITNESSES INVENTOR 1 Ilium/Z. Dar/0627 0071 I J- mm bzdtlorney. I

UNITED STATES PATENT ()FFICE.

ELMER E. DAVENPORT, or CHICAGO, ittiivois MANUFACTURE OF PIECED TINWARE.

SPECIFICATION forming part of Letters Patent N 0. 647,809, dated April 17, 1900.

Application filed February 7, 1900. Serial No;'4,398. (No model.)

T at whom it may concern:

Be it known that I, ELMER E. DAVENPORT,

a citizen of the United States, residing at Chi soldered tinned metal by my method out of black sheet metal, as sheet-iron or sheet-steel, by cutting, and, if necessary, by partially splitting the blank or pattern of said article of the required shape, bending said blank in any direction to obtain therefrom approximately the final form of the completed article, but with its edges or parts unconnected, and then coating with tin the faces and all the raw edges of the bent blank ordisjointed article, and, lastly, bringing the joints or parts of the article in the positions they are to oc cupy finally and soldering them as ordinarily done in the manufacture of pieced tinware made of the terne or tin plates of commerce.

To illustrate the application of my invention to one article of manufacture, the blank of a sheet-metal scoop is shown in the accompanying drawings, in which- Figure 1 is a plane top 'view of the black sheet-metal blank used to produce the scoop, the dotted lines showing where bends are to be made in the metal. Fig. 2 is aperspective View of the form given to the black sheetmetal blank by bending its component parts on the dotted lines of Fig. 1 before itis dipped in melted tin and after it is removed therefrom with its faces and edges coated with said tin.

The scoop shown is intended to have a reinforced back and bottom of two thicknesses of the metal, the bottom consisting of the two triangular parts 1 and 2. The part 1 in Fig. 2 constitutes the outside bottom and the part 2 the inside bottom, The two thicknesses at The sides 5 and 6 are bent from the triangular parts 1 and 2 of the bottom. On the rear ends of said triangular parts 1 and 2 are tri angular lugs 9 to be turned up against the rear of the back 4. The parts 1 and 2 being substantially parallel to each other while the bent blank is being dipped in the melted tin, the whole surfaces of each part are coated on both sides without interfering with each other; but the bent blank may be lightly struck against the sides of the tin-holdingtank or some part thereof to shake off any surplus tin, as this is done while tinning a bunch of small objects, as nails or tacks, and after the bent blank has become cold its bends are compressed slightly more by the operators hands or by simple clamps to bring the joints in the positions they are to occupy finally, and said joints are soldered by well-known means. By this method of making pieced tinware there is no straining or rupture of the tin coating of the black metal at the bonds of the blank and very little handling of the blank after it has been coated with tin. Therefore the finished article thereby escapes many scratches formed on tinware that has been out and bent from the tin plates of comtinct from that necessary to make pieced tinware, which requires soldering in its constructio'n, the black metal of which cannot ordinarily have its joints or parts soldered to complete the article.

Having now fully described my invention, I claim-- 1. The method of manufacturing pieced I .tinware which consists in cuttingfth e blank I parts of the article of black sheet iron or steel of the required shape, bending said blank parts in the approximately final forms neces sary to construct the article, andtinnin'gthebent or flat blank parts of the disjointed article, substantially as describedl j v 2. The method of manufacturing pieced ti'nware which consists in cutting out of black sheet iron or steel the blank partsof'the article, bending said blank parts in not their final forms, but in forms approximately like the final formsto-be given to the article, tinning the bent or flat blank'partsof the disjointed article, and'closing and soldering the joints or parts, whereby the article is completed substantially as described.

In testimony whereof I aflix; my signature in presence of two-witnesses.

ELMER E. DAVENPORT.

Witnesses: i

J. W. GHISELIN, R. M. BARBER.

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