US89568A - Improved freeing-tool, screw, and jewel-setter combined - Google Patents

Description

CHARLES E. lEVAID, OF LEESBURG, VIRGINIA.

Letters Patent No. 89,568, dated May 4, 1869.

IMPROVED FREEINGr-TOOL, SCREW, AND JBWEL-SETTER COMBINED.

Tlle Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may conce/rn Be it known that 1, CHARLES E. EVARD, of Leesburg, in the county of Loudoun, and State of Virginia, have inventedanew and useful Improvementin Watch- Makers Tools; and I do herebydeclare the following to be a suiciently complete and clear description of thc same, to enable one skilled in the art to which it appertains, to carry it intoeffect, reference being had to the accompanying drawings, making part of this speciiication.

My improved tool is analogous, in many respects, to the freeing-tool in common use among watchmakers; but by constructing it as hereinafter 'dcscribed, and adapting to it a complete set of instruments, I am enabled to provide the watch-maker with a combined apparatus, with which he can set screws or jewels of any size and shape, in any necessary manner, form brass pivots or studs, oil-cups, countcrsinks, 85o., set and round pillars, and do all analogous kinds of work, with ease and precision, without the use of a lathe.

In the drawings- Figure 1 is a perspective View of the complete tool, securedin position upon a watch-plate, by means of a hand-vise.

Figure 2 represents, in elevation, the cutter-holder or stock, with its lower end in section, to exhibit the construction of the socket therein.

Figure 3 consists of diagrams, on a larger scale, of various forms of cutters, burnishers, Sto., hereinafter described.

D, figs. 1 and 2, represents a stock, provided, at its lower end, with a tapering socket, d, opening into a transverse notch or recess d, the said socket and recess being formed to receive, and firmly hold, the shanks of the various cutters hereinafter described, or to permit their ready removal when required.

At its upper end, the stock 1) terminates in a point, d, to which the requisite pressure is applied, by any suitable surface, when the tool is used with a bow.

rlhe bow works, in the usual manner, in the groove of a head, F, which is rigidly attached to the stock D. The edges of the head are knurled or milled, to adapt it for use by hand without the bow.

E is a sliding collar, .secured by a set-screw, e, at any height on the stock I),for the purpose of gauging the depth to which the cutters may work.

The stock I) works in an upright guide, consisting of 'two members, -H and I, H constituting afoot, by which the tool may bc held in position, on the plate B, by means of pliers, hand-vise C, or other means, and I, an upper part, screwed upon the foot H, and so split or divided at M as to be firmly clamped thereto by a screw, K. I

L is a set-screw, to hold the guide or socket G 1n any position in which it may be set,

The cutting, bnrnishing, and settiiig-instruments used in connection with the above tool, are made of steel, suitably hardened, in the different forms represented in the drawings, in which N os. 1 and 6 represent the two extreme sizes of agraduatcd set of dat cutters; 7 and 9 represent round or straight countersinkers and bevcllers; 10, oil-cup cutters; 11, brasspivot cutter, for clicks; 12 and 13, round-cutters, for convex jewels; 14, pillar-romlder, to round large or small pillars; l5, tl'nezul-cutter; i7, burnisher; 19 and 2l) pointed and hollow centriugtools; and 1S, dial-bevcller.

All of these tools are furnished with shanks, a, corresponding, in shape and size, to the socket (l, in the stock D, and have a notch or shoulder, a, formed upon the upper end, as shown inthe drawings, g. 3, which, when the tool is inserted in the stock, extends upwards, through the socket d, into the recess d, and, by the contact of the two dat surfaces thus brought together by a lap-joint, the tool is held securely, and prevented from turning around in the stock while in use.

By inserting the tools or cutters in the manner described, they may be easily and securely inserted,'and removed, also, without trouble and, in addition to this, in case the cutter should get jammcdin, it may be casily removed by means of a suitable instrument inserted in the recess df, without breaking, and with little expense of time or trouble.

That the value 'of my invention may be made more clearly manifest, let us supposethat it is desired to set a flat jewel in a watch-plate, or other substance.

To do this fasten the foot H to the plate, as represented in iig. l; drill a hole, at the designated place, with a small cutter; then, without removing the foot .II from the plate, take a flat cutter, the size of the jewel, place it in position in the cutter-holder D, and adj ust it to the depth required to be cut, by the aid of the screw-gauge or body composed of the parts I, K, L, M, and the regulating slide-gauge E c.

After thehole has thus been cut, take out the dat cutter and put in its place the thread-cutter, No. 15, to cut the thread or bearing.

This done, apply the tool to the other side of the plate B, centring it by No. 19; then cut the bevel with No. 7 or J cutter; reverse thc tool again; replace it in position by means of the centring-tool; then apply burnisher No. 17 place the jewel in position, and burnish the bearing down, and the work is complete.

1f the object in which the jewel or screw to be set, or hole to be drilled is small, fasten it to alarger plate or flat surface, by means of wax or shellac, and proceed as under other circumstances.

rlhe adjustment afforded by the screw-connection between the parts H and I of the guide, affords means for the most delicate adjustment of the depth of peuctration. This is especially useful iii-sinking concentric holes of different diameter and depth.

By using my invention, no lathe is required, and the operator can hold his work while operating with the tool, iu the most advantageous positions, and be enabled to change it, without delay or trouble, in a moment. It is easily adj usted to all the kinds of work it is calculated to perform,` and so simple in its operation that any one may use it with ease and success.

rlhe cutting, bnrnishing, and setting-instruments being constructed as set forth, give increased facilities for Working, the construction of the tool being such as to permit the tools being fixed in the cutter-- holder D, or removed Without displacing the foot H from the platte B.

The cutting of the hole, the beveiiing, and the setting of the screw or jewel being performed with but one change of the tool from the work.

My improved tool is substantially the seme as those now in use, except that the edge of its grooved head is milled, and in that its holder, at the upper end of the socket, is notched, for the purpose of forming ascarf-joint with cutting, setting, or burnishing-instruments, whose extremities are likewise notched, to correspond thereto. But I do not claim the application GS. ED. EVARD.

Witnesses:

WM. H. BRERETON, Jr., JNO. S. SLA'rnR.

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