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Publication numberUS562309 A
Publication typeGrant
Publication dateJun 16, 1896
Filing dateFeb 11, 1896
Publication numberUS 562309 A, US 562309A, US-A-562309, US562309 A, US562309A
InventorsSeth H. Leavenworth
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Worth
US 562309 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)

s'. H. LBAVENWORTH. MECHANISM FOR ORNAMENTING DUGTILE ARTICLES.

Patented June 16, 1896.

" FIG.1.-

iiiiiiiiiiimmw UNITED. STATES PATENT OFFICE.

SETH H. LEAVENWORTH, OF GIN OINNATL'OHIO, ASSIGNOR TO THE HO'MAh SlLVER-PLATING COMPANY, OF SAMEPLAOE.

MECHANISM FOR QRNAMENTING DUCTILE ARTICLES.

SPECIFICATION forming part of Letters Patent N0. 562,309, dated June 16, 1896. Application filed February 11, 1895- Serial No. 538,008. (No model.)

To aZZ whom it may concern.-

Be it known that I, SETH- H. LEAVEN- WORTH, a citizen of the United States, residing at Cincinnati, in the county'of Hamilton and State of Ohio, have inventedcertain new and useful Improvements in Mechanism for Ornamenting Ductile Articles; and I do hereby declare the following to be a full,c1ear; and exact description of the invention, reference being had to the annexed drawings, which form part of this specification.

This invention relates to that art of ornamenting hollow sheet-metal articles, which consists in placing them within sectional dies having chased inner surfaces, and then forcing the blank articles outwardly, by means of flexible expanders, so as to reproduce such chasings on the exteriors of said blanks; and my improvement comprises a specific construction of pressing mechanism or die that greatly facilitates the carrying out of the art referred to, the details of said mechanism bein ghereinafter more fully described, and then pointed out in the claim.

In the annexed drawings, Figure 1 is a sectionized elevation of my pressing mechanism. Fig. 2 is a horizontal section of the same, taken at the line 2 e,- the blank seen in Fig. 1 being omitted.

A is a heavy die-block having an ornamented matrix B in its upper end, and O is a sheet-metal disk or blank to be forced into said matrix, for the purpose of reproducing any designs chased within the latter.

D is an india-rubber expander secured to the under side of a collarE of plunger F. Furthermore, this collar carries a clamp-ring G, which is normally depressed by a set of heavy spiral springs H, interposed between said ring and the head I of the plunger.

It will be noticed that the clamp-ring G projects somewhat below the disk D, and when the plunger E F I descends the blank 0 is first gripped between said ring and the upper end of the die-block A. Consequently, the blank is now clamped very firmly in place, and the continued descent of the plunger brings the disk-expander into service, and causes it to press the sheet metal down into the matrix B with sufficient force to reproduce any ornaments or designs with which said matrix is embellished. -As this disk is con fined within the bore or chamber of the clampring, it is evident there can. be no lateral spread or distention of said flexible device D, 5 5 and for this reason the full force of the descending plunger is utilized in taking off an impression from the ornamented portion B of the die-block.

When the plunger ascends, the expander is first liberated from the ornamented blank, and the still farther ascent of said plunger causes its collar E to lift the clamp-ring G, and thereby liberate said blank and permit its bodily removal from the die-block.

The above-described mechanism is used with any approved form of press capable of exerting the necessary power, and enabling the ready handling of the work.

I claim as my invention-- The combination, in a mechanism for ornamentingvductile blanks, of the die-block A, having an ornamented matrix B; the plunger F I, having a collar E; the chambered clampring G, carried by said collar, and normally depressed by a set of springs H interposed between said ring and the plunger-head I; and a flexible disk D inserted within said chamber, whereby lateral expansion of said 7 disk is prevented when pressure is applied to said plunger, all as herein described.

In testimony whereof I affix my signature in presence of two witnesses.

SETH H. LEAVENWORTH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2581622 *Feb 15, 1946Jan 8, 1952Addressograph MultigraphApparatus for shaping metal plates
US2606516 *Dec 16, 1947Aug 12, 1952Harbor Aircraft CorpApparatus for forming sheet metal material
US3373585 *Sep 21, 1964Mar 19, 1968Reynolds Tobacco Co RSheet metal shaping apparatus and method
US4152998 *Oct 26, 1976May 8, 1979Taylor John CMethod for forming snap-acting thermally responsive actuators
US6029486 *Nov 19, 1998Feb 29, 2000Amada Metrecs Company, LimitedForming method, forming tools and elastic punch
US6260394 *Feb 17, 2000Jul 17, 2001Amada Company, LimitedForming method, forming tools and elastic punch
Classifications
Cooperative ClassificationB21D26/055