US264541A

US264541A - Alonzo lambeet

Info

Publication number: US264541A
Authority: US
Publication date: 1882-09-19
Anticipated expiration: 1899-09-19

Description

( No Model.)

. A. LAMBERT.

MODE OF MANUFACTURING BRAGEIIETS. v

ATTORNEYS. V

To all whom Hmong concern:

UNITED; STATEd PATENT- OFricE.

ALONZO LAMBERT, 0F CORONA, ASSIGNOR TO S. W. HALE & (30., OF

; NEW YORK, NrY."

MODE oFMANuFAcTUa No BRACELETS.

SPECIFICATION forming part of Letters Patent No. 264,541, dated September 19, 1882.

' Application filed March 23,1882. (No model.)

Be it known that I, ALONZO LAMBERT, of Corona, in the county of Queens andState of New York,have invented certain new and useful Improvements in the Mode of Manufacturing Bracelets, of which the following is a full, clear, and exact description.

lteference'is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure -l is a section of the stock for a bracelet before being operated upon. Fig. 2 is a section of the same after the first operation. Fig. 3 is a section of the same alter the second operation. Fig. 4 is a section of the same after the third operation. Fig. 5 is an end elevation, partly in section, of the dies for performing the first operation. Fig. (iis an end elevation, partly in section, of the die a ntl tool for performing the second operation. Fig. 7 is an end elevation, partly in section, of the dies for performing the third operation. Fig.

. 8. is a side elevation, partly in section, of the dies for giving shape to half-bracelets. Fig.

9is a sectional end elevation of the same, taken through the line so m, Fig. 8. Fig. 10 is a sectional end elevation of the mandrel for giving shape to the bracelet when made in one piece,

the bending-tool being shown in side elevation. Fig. 11 is a plan view of the same. Fig. 12 is a perspective view of a halt-bracelet. Fig. 13 is a perspective view'of a bracelet madein one piece. v

The object of this invention ist o facilitate and chea pen the manufacture of bracelets made with raised rims. V

The invention consists in the mode of manufacturing bracelets having raised rims by bending the edges of the stock upward at right angles by pressing the-stock into a grooved die, then bending the turned-up edges inward at rightangles over rectangular wires placed in the angles of the stock while still in the die, then bending the inwardly-projecting edges downward at right angles along the inner sides of, the wires, and then bringing the bracelet into shape upon an .oval mandrel with a bending-tool also, in the combination, with alathe, of a graduated mandrel, a bending-tool, and

, the bracelet.

its fulcrum-rod,,whereby a bracelet can be readily brought into the required shape; and, also,ain a bending-roller having rabbets at its ends, in combination with an oval annular grooved mandrel, and a shiftable hand-lever, whereby a bracelet made with projecting rims can be readily brought into shape, as will be hereinafter fully described.

A represents a plate of gold or other metal ofsuitable length, width, and thickness to form a bracelet. The stock A is laid upon a female die having a rectangular channel formed in its face of a width equal to the desired width of The stock A is forced into the die B by a male die, 0, bending its edges upward at right angles, and bringing it to the form shown in Fig. 2. Rectangular wires 1), of suitable size, are then placed in the angles ofthe stock A, and the edges of the said stock are then hammered or burnished down upon the said wires with a suitable tool,.E, bringing the stock A to the form shown in Fig. 3, each edge being bent twice atright angles, the said wires being held in place by hooks F,as shown in Fig. 6. The inwardly-projecting edges of the stock A are then bent downward at right angles along the inner sides ofthe wires D by a die, G, of suitable size, as indicated in Fig. 7, each edge of the stock being thus bent three times at right angles, as shown inFig.4. The stock A is then removed from the die B, and one of its ends isinsertedin a groove or slot, H, in the bottom of an annular groove in an oval mandrel, I, and the stock is worked down into the said groove by a bendingroller or tool, J, bringing the stock to the oval form required in a bracelet. The mandrel I is placed in and revolved by an ordinary lathe. The bendingeroller J is pivoted to the forked end of a lever-handle, K, which has an eye formed in it to receive and slide upon a rod, L, connectedwith and supported by thelathe-heads, and which serves as a slide and fulcrum for the bending-tool. For convenience in making bracelets of different sizes, the mandrel I is g its ends, soas to operateupon the body of the stock and upon its rims. When the stock has been brought to the desired shape it is removed from the mandrel I, its elasticity being sufficient to allow it to be sprung from the said mandrel without having its shape changed. The wiresD are then withdrawn from the stock A, and the said stock is provided with a hinge and catch, and is ornamented and finished in the ordinary manner.

When thebracelet is to be madein two parts or halves the stock is placed in a female die, M, having a half-oval face, and having grooves along the sides of its face to receive the rims of thesaid stock, and the stock is brought into a halfioval shape by a male die, N, having a corresponding half-oval face, as shown in Figs. 8 and 9. The two parts of the bracelet are then provided with a hinge and a catch, and are ornamented in the ordinar manner.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. The mode of manufacturing bracelets having raised rims, substantially as herein shown and described, which consists in bending the edges of the stock upward at right angles by pressing the stock into a grooved die, then bending the turned-up edges inward at right angles over rectangular wires placed in the angles of the stock while still in the die, then 0 whereby the bracelet can be readily brought into the required shape, as set forth.

3. The combination, with the oval mandrel Lhaving annular grooves, of the pivoted shiftable hand-lever K and the rabbeted roller J, as shown and described.

ALONZO LAMBERT.

Witnesses:

WILLIs H. HAWES, CHAS. H. BALDWIN.