US1708610A - Odd-shape watch movement with second hand - Google Patents

Description

April 9, 1929. M. FAVRE ODD SHAPE WATCH MOVEMENT WITH SECOND HAND Filed Aug. 21, 1925 Patented Apr. 9, 1929.

UNITED STATES 1,7t8,6ll

PATENT QFFICE.

MARC FAVRE, OF EVILARD S/BIENNE, SWITZERLAND, ASfSIGrNOR TO THE GEUEN WATCH COMPANY, OF CINCINNATI, 01-110, A CORPORATION OF OHIO.

ODD-SHAPE WATCH MOVEMENT W 11TH SECOND HAND.

Application filed August 21, 1925, Serial No. 51,675, and in Switzerland September 12, 1924.

An object of my invention is to provide an odd shaped watch movement embodying a second hand and lever escapement.

Another object is to provide a movement of this type which may be made small in size but in which the second hand and its mechanism is so arranged as to provide a maximum of space for the remaining elements of the movement.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which:

Fig. 1 is a plan View of a watch movement of my invention.

Fig. 2 is a cross sectional elevation on an enlarged scale, being a development along a line ABCDEFG of Fig. 1.

The watch movement of my invention is adapted to be used in odd shaped watches such as oval, rectangular, barrel shapedand modified outlines of any of such shapes.

In order to be able to provide a very small watch with a second hand and its requisite parts I have effected a novel arrangement of such parts to the end that a maximum of space is provided for the barrel, and various moving parts of the movement.

The movement, as shown in the drawings, takes the form of an oval with flattened ends and comprises a barrel 1 which carries a main spring and its usual co-operating parts from which pinion 2 of escape wheel 3 is driven through a. train of three rotating bodies, each comprising a pinion and a gear wheel secured for movement as a unit. These units or members, namely 4 5, 67, and 89 serve to impart movement to pinion 2 of he escape wheel 3. The movement has the usual winding wheels 10 and 11 whereby winding of the main spring of the barrel 1 may be effected by a suitable stem mechanism. A suitable escapement lever (not shown) is also provided.

As may be noted in Fig. 1, the balance wheel 12 is j ournaled in a suitable supporting bridge so that it may actuate a suitable escapement (not shown) but which is preferably of a lever type. The seconds wheel 9 and its pinion 8 are carried by staff 13 which carries the second hand 14. The shaft 13 is journaled adjacent its one end in the plate 15 and its opposite end is j ournaled in bridge 16. The bridge 16 (see Fig. 1) overhangs the escape wheel 3 while the balance wheel 12 overhangs substantially the entire body of bridge 16. The hour and minute hands have their center of rotation disposed at the intersection of major axis and minor or stem axis y g of the movement, and the second hand 1% has its center of rotation, namely the staff 13, disposed on the major axis at a distance from the axis of the stem. By disposing the parts in the relation just de scribed there is effected the desired symmetry of the movement and at the same time ample space remains for the other moving bodies thereof so that such other bodies need not be made unduly small.

lVhat I claim is:

1. In an odd shaped watch movement the combination with a balance wheel or an as cape wheel. disposed below the balance wh eel, a bridge disposed intermediate said wheels,

and a seconds wheel ournaled in said. bridge for rotation beneath the escape wheel and centered upon the longitudinal axis of said movement.

2. In an elongated watch movement the combination with a balance wheel, of a bridge beneath the balance wheel, an escape wheel adapted to pass beneath the bridge and a seconds wheel having a journaled i'nounting in said bridge, and having its staff disposed in the longitudinal axis or" the movement intermediate the lateral axis of the movement and a line passing through the axes of rotation of the balance wheel and escape wheel.

3. In an elongated watch movement the combination of an elongated plate, abarrel mounted on said plate adjacent one longitudinal end thereof, an escape wheel and a balance wheel mounted adaeent the opposite longitudinal end, a bridge beneath the balance wheel and extending across the longitudinal axis of the movement and beneath which the escape wheel may more and a seconds wheel rotatably supported by the bridge and disposed on the longitudinal axis of the movement intermediate the center of the movement and the intersection of the longitudinal axis of the movement and a trans verse line passing through the centers of rotation of the balance wheel and escape wheel.

In testimony whereof I have signed my name to this specification.

MARC FAVRE.

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