US1370662A - Mounting for diamond-set tools - Google Patents

Description

F. J CORVILAIN Y MICHEL. MOUNTING FOR DIAMOND SET TOOLS.

APPLICATION FILED AUG.20, l920.

Patented Mar. 8, 1921.

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UNITED STATES PATENT OFFICE.

MOUNTING FOR DIAMOND-SET TOOLS.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed August 20, 1920. Serial No. 404,955.

To all whom it may concem Be it known that I, FERDINAND J ULES CoRvILAIN Y MICHEL, a subject of the King of Belgium, and residing at Bilbao, Spain, have invented a certain new and useful Imrovement in Mountings for Diamond-Set Tools, of which the following is a specification.

This invention relates to improvements in tools set with diamonds in a crown plece, such, for example, as that shown and described in U. S. Patent No. 1,030,284, dated June 25, 1912.

In the production of the improved mount the diamond is mounted on one end of a copper wire and electrolytically coated with a deposit of copper. The wire and copper deposit are then turned down to the form of a cylinder merging into a truncated cone in which latter the diamond is embedded and from which the working face of the diamond projects or emerges, so much of the cylindrical portion being cut off as is necessar to effect the required adjustment.

he residual cylindrical portion and conical portion may then be introduced in the socket of the crown piece and will be solidly maintained in place.

In the accom anying drawings Figures 1 to 7 inclusive, illustrate the improved method of production of the mounting and also show the completed mount.

In the drawing 1 is an elevation and Fig. 1 a plan showing a wire 1 of soft pure copper of a diameter of about 8 mm. on whic As shown in Figs. 2 and 2, the wire is drilled at 2 to a depth approximately equal to the height of the diamond so as to form the wire with a tubular end, the walls of the tube having a thickness slightly less than 1 mm.

wire the diamond is to be mounted.

As shown in Fig. 2, a hole 3 is also drilled in the wire near the other end at right angles to the axis of the wire.

As shown in Figs. 3 and 3, the tubular end 1s then sawn with an ordina hack-saw to the depth of the part that has been drilled, leavlng four fingers 4. The fingers are heated and allowed to cool so as to render them as pliable as possible.

As shown in Figs. 4 and 4, the diamond 5 1s then mounted between the .four fingers 4, being given the right position with the aid of ordinary pliers, the working face of the diamond being on top.

A hook is now passed throu h the smal hole 3 and the copper wire is ipped in'an electrolytic copper bath. Electrolytic copper wire is deposited as shown at 6 in Figs. 5 and 5. The diamond remains embedded in the copper and is tightly fastened.

The copper wire with copper deposit thereon is then placed on a lathe and the truncated cone 7 or 8 cut down, as shown in Fig. 6 or in Fig. 7, depending on the size of' the diamond and the angle desired.

I claim,

The improved method of producing a diamond mounting for a diamond set tool of the type referred to, consisting in mounting the diamond on one end of a copper wire,

coating it electrolytically with a deposit of copper, and then turning down the wire and de osit to the required form.

n testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FERDINAND JULES CORVILAIN y MICHEL.

Witnesses: I

KATE Fo rnnRLNonAM, ISABEL

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