US75892A - Improvement in watch-case cutter - Google Patents

Description

.l Quinn intra strnt @fitta `JOHN FORTENBAGH, JACOB FOR'l'E-NBACH, AND JOSEPH FQRTENBACH, OF

. i GARLSTADT, NEW JERSEY. t

Leners Patent No. 75,892, dans March 24, 1868.'

IMPROVEMENT AIN WATCH-CASE GUTTER.

'ro ALI. WHoM 1r MAY coNcEnN:

Be it known that we, J ouN FoRrENBAcH,"JAcoB Fonrnsnucn, and J osEPHF'onTEn'BAcH, of Carlstadt, in the county of Bergen, and State of`New Jersey, have invented a new and improved Cutter for Watch-Cases; and we do hereby decliirethat the following is a full, cle-ar, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being` had to the accompanying drawings, forming part of this specification. 4 l

'Figure 1 represents a vertical longitudinal section of our improved watch-case cutter, taken on the plane of the line x zfg. 3.

Figure 2 is a side elevation, partly in section, 'of the same, the plane of section being indicated by the line y y, iig. 1. y p

Figure-3 is a similar view as iig 2, showing the machine adapted for cutting centres.

Figure 4 is a detail plan or top view nfl-the same.

Figure' is a plan view of the wateh-cover or back eut by our improved machine,

Figure 6 is a .plan view of a watch-centre cut by our improved machine.

Figure 7 isa plan view of-a watch-centre and covercut by our improved machinev..

Similar letters of reference indicate corresponding parts. i I

This invention.v relates to a new machine for 'cutting the recesses into watch-centres and covers for the reception of the hinges, arid consists in such a construction of the supports of the pieces to be cut, and in such an arrangement of cutters, that the desired result will be obtained with the greatest accuracy, easehand dispatch.

Heretofore, the aforesaid recesses had invariably to be eut by hand, and the process of cutting them occul pied a considerable timein the manufacture of watchcases. Furthermore, no great accuracy can be obtained without the use of proper machinery. A i

A, in the drawing, represents a frame, of suitable construction, made of wood or metal, as may be desired. From the same projects an ear o r ears, a, to which one end' of a frame, B, is pivoted, which forms two parallel rails, b b. The free end of the frame B can be' set at any desired height labove the bed A by means of a screw, c, or other equivalent device, so that any desired degree of inclination can be imparted to the rails b. Upon the rails b isset a sliding carriage, C, from which a hollow turret, D, projects upward, as shown. To the under-iside of the carriage C is pivotcd a lever, d, which, with one end, fits under a disk or block, @that is I arranged within the turret D, whileiitsV other end tits below the end of alscrew,f, or other equivalent device,

by means of which the height of the disk e in the vturret can be regulated.' Upon the adjustable disk e rests,

within the turret D, a block, E, which-is at its upper end made concavefor the reception of watcl1-covers, as

in fig. 2, or provided with a circular projection, g, for the reception of centres, as in gs. Sand 4. vor which, if desired, has one end concave and the other end provided with: the projection g, as in fig. 1, in which latter case it is inserted in the turret, so that` the desired end is "on top. The centre or cover is then placed upon the'end of thehloel: E, so that it may project somewhat from the upper ledge of the turret. By a C-shaped plate, F, which fits upon the upper end of the turret, and under the heads of pins h h that project from the same, the

portion of the watch-case to be cut will be partly covered, as shown in 4. The vcover or the centre can i then be clamped by turning the screwf, between the block E and plate F, as shown infigs. 2 and 3.

The plate F is so formed that a sufficient vportion of the cover, or of the centre, is left free and open, to be reached by tools from above, to facilitate which the upper edge of the turret is depressed -opposite to such uncovered section ofthe cover or centre, as shown, so that that section may lie entirely free, as in igs. 2

" and 3. From the bed A project two or more uprights, G Gr, in which horizontal spindles or pins H H, have `,their bearings, said spindles holding between thema horizontal shaft, I, as shown, or the said shaft'may `have its bearings arranged in any other suitable manner. On the shaft are mounted three circular cutters,

t', j, and k, which are close together, and with `edges of the required shape. As rotary motion is'imparted to the shaft 1the cutters are revolved. KThe carriage G is then moved under the cutters, the rails b having been J" adjusted so that the cutters will reach to the 'required ydeptlron the case or cap to be cut. In the drawing, the shaft I is shown to be longitudinally adjustable, so that the cutters may be brought' nearer to or further from the centre of thc turret, to adapt the device for varioussized watch-cases; but if desired, thc cutters may be adjustable on the shaft for the same purpose, and with equal eil'ect.

By means of the screw c the inclination of the rails may be so regulated that' the watch-ease to bc cut is at the required height, so that the incisions may bo made to the necessary depth. In cutting covers, as in lig. 2, the smallest cutter, z', serves to make the surface ofthe straight strip, z, which is generally soldered into or formed in the covers, as in iig. 5, even with the edge of the cover. The second cutter, j, cuts the groove m for the reception ofthe socket of the hinge, and the third and largest cutter, c, reruoves as much of the rim as is necessary to allow the lid to open as far as isxlesired, as willbe understood from fig. 7. Forcutting the centres, the cutter 7c removes as much of the rim as isvrequired to allow the necessary opening,j cuts the groove n for the reception of the hinge-socket, and z'lattens a portion ofthe edge-of a ring, o, which is lformed on the centre, as shown in fig. G.

This invention is applicable to all kinds of watch-eases, and to all sizes.

We claim as new, and desire to secure by Letters Patentt l. The improved machine for cutting the hinge-recesses in watch-cases, made and operating substantially as herein shown and described.

2. ,The up-and-down adjustable sliding turret D, when combined with the lever d, up-anddown adjustable block E, and clamping-plate F, all made and operating substantially as herein shown and described.

3. The block E, for supporting the covers or centres of watchwascs, when formed for the said object, substantially as herein shown and described.

4. The upanddown adjustable sliding turret, when carrying the cover or centre of thc watch-ease, in combination with the longitudiually-adjustable rotary cutters, by which the hinge-recesses are cut into the covers or centres, substantially as herein shown and described.

JOHN' FORTENBACH,

JACOB FORTENBACH,

Witnesses: I JOSEPH FORTENBACH.

EMIL LDER, CHARLES HAGEMEISTER.-

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