US1979338A - Watchcase - Google Patents

Description

1934- s. J. MITTELMAN El AL 1,979,338

WATCHCASE Filed Aug. 5, 1933 mum will 15 INVENTORS 5A MUEL d M/TTELMAN Aw ABRAHAM KRAUS Patented Nov. 6, 1934 UNITED STATES WATCHCASE Samuel J. Mittelman and Abraham Kraus, New York, N. Y.

Application August 3, 1933, Serial No. 683,437

2 Claims.

This invention relates to casings for horological appliances, particularly to portable types and specifically to watches of stem winding, pocket carried variety.

An object of the invention is to provide an ornamental case surrounding the mechanism of the watch, in direct contradistinction to the casing commonly employed.

A further feature is in the provision of means to securely support and protect the watch mechanism, and devices integral therewith, and to receive and retain the watch glasses or convex crystals at its sides.

Another purpose is to produce a case composed of glass, bakelite, celluloid, bone, wood or any other natural or artificial substance, tinted or colored as may be preferred, and having a radial opening for the winding and setting stem, which is further provided with a knob operatively secured in a band encircling the case and adapted to efiiciently protect the same.

Another aim is to furnish a unique watch case of unusual configuration, well adapted for its purpose and inexpensive to produce commercially.

These and other meritorious objects are accomplished by the novel design construction, and combination of parts hereinafter described and illustrated in the accompanying drawing, forming a material part, of this disclosure, and in which:

Figure l is a front elevational view of an embodiment of the invention.

Figure 2 is a rear elevational view of the same.

Figure 3 is a longitudinal sectional view taken through the center of the device.

Figure 4 is a fragmentary sectional View showing the winding knob and its attachment drawn to an enlarged scale.

Figure 5 is a similar view of the same, but showing a modified form of knob attachment.

As shown in the drawing, a watch of conventional type is indicated generally by the numeral 10, referring to its face on which are the numerals and hands indicating hours and minutes.

The reverse or back side 11, shows the movement through one of the watch crystals 12, a similar crystal being disposed over its face.

This movement may be wound and set by a stem 14., having attached at its outer extending end, a boss 15 provided with a twirling knob 16, and fixed in the boss is a support ring 1'7, all these several elements being of the ordinary well-known type.

The watch case as shown, consists of a circular disc 20, preferably made of a material such as glass, bakelite, or the like, which may be colored or tinted in any preferred manner.

This disc has a central circular opening 21, surrounding which are lateral annular recesses 22, adapted to receive flanges 23 formed in an interior band 24 adapted to engage the watch movement thereby to hold it firmly in position, the band being further provided with opposed pairs of low flanges 25 acting as bezels to receive and secure the crystals 12, as best seen in Figure 3.

The disc 20 is provided with a central circular passage 26 to receive the stem 14 of the movement, this passage leading radially from the central opening 21, to the exterior of the disc, which contains a central annular recess 27 for the reception of a band 28 held from lateral movement by the inner edges of the recess and connected as shown in Figure 4 by a strip 29 at its spaced ends, this strip being adapted to enter an annular groove in the boss 15 to retain it in position.

In the modified form shown in Figure 5, the band 28 is turned reentrantly at its ends, forming hooks 30 to engage in appropriate openings in a strip 31 in which the boss 15 is mounted.

The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which obviously an embodiment may be constructed, including modifications, without departing from the general scope herein indicated and denoted in the appended claims.

Having thus described the invention, what is claimed as new and desired to secure by Letters Patent, is:

l. A case for a stem winding watch movement composed of a circular plate of rigid translucent material and having a central aperture, a metallic casing set in the aperture to engage the watch movement, said movement having a stem and said plate having a central radial passage to receive the stem, a knob on said stem, means surrounding said plate to rotatably support said knob and transparent crystals set in the sides of said plate to cover the openings and watch movement therein.

2. A case for a stem winding watch movement composed of a circular one piece plate of rigid material having a central circular opening and a radial passage leading from the opening to the circumference of the plate, a metal lining fixed in the opening, said lining being adapted to engage and retain said watch movement, means on the edges of said lining to receive Watch case crystals, a band surrounding said plate, and an outstanding bossprovided With an axial perforation to admit passage of the watch winding stem, said boss being mounted in said band to support the knob carried by said watch stem.

SAMUEL J. MITTELMAN. ABRAHAM KRAUS.

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