US319306A - Process of making - Google Patents

Description

Patented June 2, 1885.

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H. L. PALMER.

PROCESS OP MAKING SHEET METAL WARE. l No. 319,306.

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HENRY L. PALMER, OF BROOKLYN, NEW YORK.

PROCESS OF VIAKINGSHEET-METAL WARE.

@PECIFICATION forming part of Letters Patent No. 319,396, dated `lune 2, 1885.

n Application filed February 1G, 1885. (No model.) Y

To all whom it may concern:

Beit known that I, HENRY L. PALMER, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful improvements in the art of making ornament-al trays, plaques, clock-frames, or similarly-ornamented articles of hard sheet metal; and I do hereby declare the following to be a full, clear, and exact description thereof, whereby a person skilled in the art can make and use the same, reference being had to the accompanying drawings to illustrate my invention, and to the letters of reference marked thereon, in which- Figure l is a plan of an ornamented blank for a tray. Fig. 2 is a perspective view of a finished tray. Fig. 3 is a central vertical section of the same. Fig. 4 is a perspective view of a plaque, and Fig. 5 is a perspective view of a clock-frame.

My invention'relates particularly to trays or waiters, plaques, cardreceivers, clock-frames, and similar articles of ormolu or other hardmetal articles capable of being fashioned into the desired shape by stamping or spinning, and that are provided with alternating plain and ornamented surfaces, vor that have an ornamented center with a smooth plain border or otherwise, as may suit the fancy of the designer.

rlhe usual method of making trays or other similar articles above referred to has been to iirst cut the required blank out of plain metal, spin it up to the required shape, and then ornament the bottom by hammering the ornamentation thereon. This is a tedious process and consumes a great deal of time. Said articles may be made in a drop-press; but this method necessitates the use of a separate die for each pattern and every different size of the article to be made, and for very large trays it would involve a large outlay of money for the dies and presses needed.

Blanks of soft metal having a particular portion of their surface previously ornamented in relief have been used to make hollow-ware articles by subsequently spinning them to the shape of the article desired; but great care is necessary by this method of ornamentation not to destroy the relief ornament previously made thereon 5 but this method when applied to embossed ornamentation on articles of brass or other comparatively hard metal would neces sarily be tedious and require a great deal of time. I do not use any part of this method of ornamenting hollow-ware articles as described in Patent No. 809,531, dated December 23, 1884.

The object of my invention is to produce ornamented trays, plaques, clock-frames, or other sheet-metal ware at a greatly reduced expendr ture of time and money, so that the most elabolrate ornamental design may be quickly reproduced upon articles of different sizes and shapes at the least possible cost, thus enabling the public to receive the beneiits arising from improved methods of manufacture.

A represents a blank for a tray, having its entire surface covered with the ornamental design B. The blank A may be cut from a sheet or roll of metal Whose whole surface has been embossed by passing between steel or other suitably engraved or ornamented rollers; or the blank may be eut from a plain sheet of metal, and then passed between said ornamented embossing-rollers under suitable pressure. After the blank has been thus ornamented, it is put in a spinning-lathe, and a raised side, C, and bead a is spun up around the circumference of the tray.

'Ihe plaque E (shown in Fig. 4) has a central plain concave portion, b, and an embossed flat rim, c, with an intermediate ornamented bead, d.

The clock-frame F, Fig. 5, shows an embossed rhomboidal scroll with a central plainsurfaced concavity, in the center of which is the clock-dial.

After the article has been spun to its required shape, those portions required to be plain are skimmed and then burnished or iinished, as desired.

YVhere I desire to ornament any portion of a plaque or tray or other article with a plain outline figured ornament, as shown at e, Figs. 2 and 3, I omit the skimming operation, and finish by cleaning and polishing in the usual well-known manner.

It will be seen from the above that with one pair of embossing-rollers many diffcrentvsized IOO 5 required in the ornamenting of' any particular portion of the article to be made, for the entire surface of the blank is first ornamented by simply passing Vthe roll or sheet of metal from which the blank is cut between the e111- Io bossing-rollers, (or, if preferred, the blank itself,) and then spinning and finishing the article. as hereinbefore explained.

Having described my invention,whatl claim l. rlhe art of making ornamental trays, plaques, or other articles of brass or other suitable sheet metal by first embossing the ornamentation over the entire surface of the blank, then spinning said blank into the required form, then erasing the ornamentation 2o Where plain surfaces are desired, and finally finishing by burnishing or by polishing, as herein set forth.

2. The process of making ornamental sheetmetal Ware by first embossing the entire sur- 2 face of the blank, then spinning such blank to its desired form, then on some portions thereof removing entirely the ornamentation by skimming and in other portions only partially removing the same, then burnishing or 3o otherwise polishing the article, as desired.

HENRY L. PALMER.

Witnesses:

Trios. HOUGHTON, A. M. DARRELL.

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