US2938327A

US2938327A - Illuminated watch

Info

Publication number: US2938327A
Application number: US730210A
Authority: US
Inventors: Paul R Vogel
Original assignee: Montres Solvil & Titus S A Fab
Current assignee: Fabrique Des Montres Solvil & Titus S A; Montres Solvil & Titus S A Fab
Priority date: 1957-07-24
Filing date: 1958-04-22
Publication date: 1960-05-31
Anticipated expiration: 1977-05-31

Description

May 31, 1960 P. R. VOGEL 2,938,327

ILLUMINATED WATCH Filed April 22, 1958 Niamey United States Patent ILLUMINATED WATCH Paul R. Vogel, Gentllod, Switzerland, assignor, by mesne assignments, to Fabrique des Montres Solvll 8r Titus S.A., Geneva, Switzerland Filed Apr. 22, 1958, Ser. No. 730,210 Claims priority, application Switzerland July 24, 1957 1 Claim. (CI. 58-50) The present invention relates to an illuminated watch comprising an electric bulb which is supplied with current from a battery.

This watch is characterised in that it comprises a circuit-breaker means in the feed circuit of the said bulb, controlled by the winding crown, the latter being mounted so as to be movable axially on its stern, and the whole arrangement being such that by pressing on the said crown, the bulb is lit up.

One form of embodiment of the subject of the invention is illustrated by way of example in the accompanying drawings.

Figure 1 is a plan view of a wrist-watch provided with an electric bulb.

Figure 2. is a sectional view on a larger scaletaken on the line II-II of Figure 1.

Figure 3 is a partial sectional view on a larger scale, taken on the line III-III of Figure 1, and,

' Figure 4 is a partial sectional view, also on a larger scale, taken on the line IV--IV of Figure 1.

The watch illustrated comprises a case formed of a middle-bezel 1, in which is fixed the glass 2, and a cover 3 which is screwed into the middle-bezel with the interposition of a packing ring 4. The work 5 of this watch, provided with a dial 6, is fixed in the case through the agency of a mounting frame or ring 7 made of electrically insulating material. An electric battery 8 is lodged underneath the said work, between the latter and the cover 3. The battery bears on the one hand against the mounting frame 7 and on the other hand against the cover 3 with the interposition of an annular spring 9.

The mounting frame 7 which is made of insulating material, carries an electric bulb 10 mounted in a hole 11 (Figure 3) and extending through an aperture 12 in the dial. The frame 7 also carries two

metal rings

13 and 14, constituting the conductors for supplying current to the bulb 10. The ring 13 is mounted on the face of the frame 7 which faces towards the cover and the ring 14 on the face which is situated adjacent the dial, but

2,938,327! Patented May 31, 1960 ice this ring 14 is spaced from the works also mounted on the frame 7. The two

wires

15 and 16 which issue from the bulb 10 are connected respectively to the

rings

13 and 14.

The electric battery 8 is so designed that one of its poles is connected to its upper face 8a whilst the other pole is connected to its lower face 8b. The face 8a is in contact with the ring 13 of the mounting frame 7, whilst the face 8b is in contact with the spring 9 and consequently with the body constituted by the case and movement of the watch.

The ring 14 can be connected electrically to the body owing to the fact that the winding crown 16 is mounted so as to be movable axially on its stem 17. When pressure is exerted on the said crown, the end of the tubular shank 16a of the crown 16 comes into contact with a folded-over flange 14:: on the ring 14 and thus closes the feed circuit for the bulb, which lights up. A coil spring 18 is interposed between the crown 16 and the case part 1 so as to urge the crown into the position in which the feed circuit of the bulb is open. Finally, it should be noted that although the crown is movable axially on the stem 17, the crown is fast therewith in the angular sense by means of a grooved head 19 which is fixed on the stem 17 and which is lodged in a correspondingly shaped internal cavity 20 formed in the crown.

The

rings

13 and 14 constituting the conductors supplying current to the bulb 10 can either be fitted on to the mounting frame 7, or may be constituted by printed circuits.

What I claim is:

In an illuminated watch comprising an electric bulb the feed circuit of which is supplied with current from a battery, a case, a clockwork in said case, a winding stern, a winding crown axially movable on said stern out angularly rigid therewith, a tubular shank rigid with said crown, a mounting frame surrounding said clockwork, said frame consisting of insulating material on which said bulb is fixed, and two conductors whereby current is supplied to the said bulb, one conductor being connected to one of the poles of the said battery and the other being an extension situated opposite said shank of the said crown in such a manner that the said shank comes into contact with the said extension and thus closes the feed circuit of the electric bulb when pressure is exerted on the crown, the second pole of the battery being itself connected electrically to the body formed by the said case and by the said clockwork.

References Cited in the file of this patent UNITED STATES PATENTS