US479923A - Watch movement - Google Patents

Description

(No Model.) 2.Sheets-Sheet 1.

E. E. THIEL.

WATCH MOVEMENT. No. 479,923. Patented Aug. 2, 1892.

WITNESSES. INVENTOH: a. a; $494 ATTORNEYS.

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I (No Model.) 2 Sheets-Sheet 2.

E. E. THIEL.

WATCH MOVEMENT. No. 479,923. Patented Aug. 2, 1892.

v WITNESSES. INVENTQH. M P a r fj zd.

A TTORNE Y8.

UNTTEE STATES PATENT @FEICE.

ERNST ED. THIEL, OF RUHLA, GERMANY.

WATCH-MOVEMENT.

EPECIFIGATION forming part of Letters Patent N 0. 479,928, dated August 2, 1892. Application filed March 23, 1892. Serial No. 426,062. (No model.)

To all whom it may concern:

Be it kn own that I, ERNST ED. THIEL, a citizen of the Empire of Germany, residing in Ruhla, in the Grand Duchy of SaXe-VVeimar, and Empire of Germany, have invented certain new and useful Improvements in \Vatch- Movements, of which the following isa specification.

The object of this invention is to furnish an improved stem winding watch, the supporting-plates, gear-wheel, and other parts of which are stamped out of sheet metal; and the invention consists in different novel features of constructionsuch as a cap-which forms at the same time the spring-barrel of the movement, in connection with the back plate and the winding-wheel of the spring, which is located close to the cap, and of the connection of the two main plates, which support the bearings for the different arbors of the wheeltrain of the movement, all of which will be fully described hereinafter, and finally pointed out in the claims.

In the accompanying draWings,.Figure 1 represents a front View of my improved watch. Fig. 2 is a rear view of the same, with the back in open position, so as to give a rear view of the movement. Fig. 3 is a vertical central section on line 3 3. Fig. 4 is a top view of the same, the dial being removed. Fig. 5 is a top view of the train of gear-wheels, shown as supported between the main plate of the movement. Fig. 6 is a detail top view of the mainspring and the winding-wheel, on which the same in supported. Fig. 7 is a detail top view of the winding-wheel, shown as detached from the movement; and Figs. 8 and 9 are respectively a bottom view and a vertical section on line 9 9, Fig. 8, showing the connection of the dial-plate with the main plate of the movement.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the case of my improved watch, which case is made of nickle or other suitable material and provided with a hinged back A and a front bezel A in which a crystal A is held. To the watch-case center the pendant B is applied, which receives the stem B, by which the main spring is wound up by turning the crown of the said stem. The inner end of the stem 13 is supported on a bridge Z), that is applied to the bent-up side flange p of the back plate P of the movement, the stem being provided with a collar Z), that defines, in connection with the flange 1) and the bridge Z), the proper position of the stem. The pinion a on the stem meshes with the teeth of a windingwheel lV, that is stamped out from suitable sheet metal and that is placed on the rear end of the arbor V of the first wheel V of the movement. The winding-wheel V is provided near its toothed circumference with a number of bent-up lugs W, that are punched out from the web of the Wheel so as to extend at right angles therefrom, said lugs serving to support the mainspring S, the outer end of which is attached to one of said lugs XV, while the inner end is attached to a disk D on the arbor V of the first wheel V, as shown in Fig. 6.

The mainspring S is inclosed and protected by a cap-plate C, which is provided with a flat cylindrical portion that extends over the mainspring S, as shown clearly in Fig. 3, and which cap-plate is attached by means of screws 0 to the plate 1) of the movement, as shown in Fig. 2, and the cap-plate O, the plate P, and the lugs of the winding-wheel XV form thus the spring-barrel of the watch-movement. The spring-pawl P fastened to the back plate P, engages the teeth of the windingwheel, as shown in dotted lines in Fig. 6, and passes through an opening an in the cap 0, so as to prevent the movement of the windingwheel in the direction opposite to the winding motion of the same. The arbor M of the minute-hand M passes centrally through the arbor V of the first wheel V, which arbor V is made square at the point of connection with the disk D, to which the inner end of the mainspring is applied, as shown in Fig. 6. The arbor M of the minute-hand is connected friction-tight to the arbor V of the first wheel and provided at its rear end with a button M by which it can be turned independently of the arbor of the first wheel, so as to set the minute-hand, and by turning of the same the hour-hand N, the usual transmitted mechanisms being interposed between the arbor of the minute-hand and the hour-hand, so as to move the latter in proper time with the minute-hand. For setting the watch the back has to be opened, so that the button M at the rear can be taken hold of, and thereby the minute-hand set, which also produces the setting of the hour-hand in the usual manner by the mechanisms shown in Figs. 3 and 4. The arbors of the train of gear-Wheels by which the motion of the mainspring is transmitted to the second-hand and the arbors ot' the escapement and the balance-wheel are supported in bearings of the plates P P, which are connected with each other by the bent-up flanges p of the back plate P, which flanges pass through the slots of the top plate P, and are locked to the same by means of beveled keys K, that engage the recessed lugs at the upper ends of said flanges. as shown in Figs. 3 and at. The plates P P are provided with the necessary bearings for the arbors of the different transmitting gear-wheels, and the flangesp are provided with slots, so as to give the required space for the gearwheels and for the pinion. The bridge I), on which the inner end of the stem is supported, is also made of sheet metal and applied by bentup lugs 11 to one of the bent-up flanges p of the back plate P, as shown clearly in Figs. 3 and 5. The transmitting gear-wheels operate the esoapement and thereby the balancewheel in the usual manner, there being no novelty in the transmitting devices, with the exception that all the wheels are stamped out of sheet metal, While the pinions are cut out of calibrated tubes, so that the expense of the same is reduced as low as possible. The movement is regulated by the lever of the balance, the outer end of which pro jects through an opening L in the cap (3, as shown in Fig. 2, so that the movement can be set fast or slow, as required, and thereby the timepiece regulated to the correct time. The dial-supporting plate E is provided with depressed portions E at diametrically-opposite points and circular openings and bushin gs E at the center of the depressed portions, as shown in Figs. 8 and 9, which bushings fit into openings 0 of the top plates P, so as to form thereby the reliable connection between the dial-plate and the top plate P. The dialplate E is provided with openings for the minute-hand arbor and the hub of the hourwheel and with an opening for the arbor of the seconds-hand .I. The dial I is printed in suitable manner and pasted on the dial-plate.

By the construction of the watch-movement described nearly allot the parts of the same can be stamped out of sheet metal and furnished at a very low expense, so that the reliable moving and regulating of the movement is obtained, which can be wound up by turning of the spring and which runs for fourteen hours at a time.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with the front and back plates of a watch-movement, said plates being connected by bent-up flanges retained by locking-keys, of a bridge attached to one flange of the back plate for supporting the inner end of the winding-stem, substantially as set forth.

2. In a watch-movement, the combination of a back plate having bent-up flanges at diametrically-opposite points, said flanges having recessed lugs at their free ends, with a top plate having openings through which the lugs can pass, and wedge-shaped key-plates inserted in the recessed ings of the flanges and resting on the top plate for the purpose of locking said plates together, substantially as set forth.

3. In a watch, the combination, with a top plate having openings at diametrically-opposite points, of a dial-plate provided with depressions and bushings, the latter fitting into the openings of the top plate, substantially

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