US1226285A - Stem-winding and stem-setting watch. - Google Patents

Description

F. WEHINGER,

STEM WINDING AND STEM SETTING WATCH.

FIG I APPLICATION FILED AUG-30. I916.

Patented May 15, 1917.

F! B E FREDERICK WEHINGER, CLOCK 00., or wn'rnnnun'r,

NNECTIGUT, A$SIGNOR TO VIATERBURY TIGUT, A CORPQRATION.

STEM-WINDING AND STEM-SETTING WATCH.

Application filed August 30, 1816.

To all whom it may concern.

Be it known that I, FnnDnnIoK ivnirni sun, a citizen of the United States, residing at Waterbury, in the county of New Ha and State of Connecticut, have invented a new and useful Improvement in Stein- VVinding and Stem-Setting latches; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the characters of reference marl-zed thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent in Figure 1 a View in elevation of the inner face of the front movement-plate of a watch furnished with my improved winding-and setting device shown in its normal or winding position, and also showing the centerwheel and the main-spring barrel of the movement.

2 a view in elevation of the outer face of the said front movement-plate with my improved windingand-setting device in the same adjustment as in Fig. 1, but in conjunction with the rocking-yoke and the main winding-wheel.

-Fig. 3 a view corresponding to Fig. 1 but showing the parts of the winding-andsetting device positioned for setting.

Fig. 4 a View corresponding to Fig. 2 but showing the device positioned for setting.

Fig. 5 a broken plan view showing the interposition of the primary setting-lever between the inner face of the front movement-plate and the forward face of one end of the bridge, the said setting-lever being pivotally mounted upon one of the screws employed for holding the bridge in place. a

Fig. 6 a detached perspective view of the bridge showing the recess formed in the forward face of one of its ends for the reception of the primary setting-lever.

Fig. 7 a corresponding view of the pri mary setting-lever.

Fig. 8 a corresponding view of the secondary setting-lever.

Fig. 9 a detached reverse view of the winding crown and stem.

Fig. 10 a detached plan view of the facepinion.

My invention relatesto an improvement in that class of stemwinding and stemsetting watches in. which the watch-crown Specification of Letters Patent.

Patented May 15, 1917.

Serial No. 117,628.

is pulled out for setting, the object of my present invention being to produce a simple, compact and convenient device of the type described, constructed with particular reference to reliability of action, ease of assembling ane disassembling, and cheapness of construction.

With these ends in view, my invention consists in a stem-winding and stem-setting watch having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claim.

In carrying out my invention as herein shown, I employ a bridge 2 having the right hand end of its forward face formed with clearance recess 3 for the reception of the hub or center portion of the prima ry settingdever 5 which is thus interposed be tween the forward face of the right hand end of the said bridge and the inner face of the front movement-plate 6, the hub 4: of the said lever being perforated as at 7 for the passage through it of the screw 8 employed for fastening the right handend of the bridge 2 to the said front movementplate. lhe left hand end of the bridge 2 is fastened to the front movement-plate 6 by a screw 9 entering the forward face of the bridge from the front face of the said plate. An alined screw 10 entering the left hand end of the bridge from the rear face thereof as shown in Fig. 5, is employed for securing the rear movement plate 11 in place and at this point.

The outer or upper end 12 of the primary setting-lever 5 is entered into circumferential groove 13 in the longitudinally movable and rotatable stem 14% of the watchcrown 15. The inner end 16 of the said lever is formed with a nose 17 which co-acts 'with the beveled surface 18 and locking- 5 between the inner face of the front movement-plate 6 and the forward face of the right hand end of the bridge 2 which is notched at 3, as aforesaid, for the reception of the hub of the said lever, I provide for holding the lever against lateral displacement under side thrusts and also avoid eX- cessive wear of the parts in operation. At the same time, by loosening the fastening screw 8 upon which the lever 5 is pivotally mounted, the bridge 2 may easily be sprung sufficiently to virtually enlarge the notch 3 so as to permit the end 12 of the lever to be readily disengaged from the notch 13 in the stem 11. Moreover, the lever 5 being a flat lever throughout its length, is not subject to the side thrusts to which levers having offsetting ends are exposed.

The bridge 2 has mounted in it, a facepinion 27 formed with an upwardly extend ing hub having a square opening 28 for the reception of the square portion 29 of the stem 14 which is thus mounted in the bridge. The said pinion 27 engages with an intermediate winding-and-setting pinion 30 in constant mesh with a setting-wheel 31 and a winding-wheel 32, respectively mounted in the opposite ends of the yoke 25. The setting-wheel 31 is engaged by the rocking of the yoke, when the stem 14 is pulled outward, with the minute-wheel 33 of the dialwork of the watch, while the winding-wheel 32 is normally engaged, as shown in Fig. 2, with the main winding-wheel 34 of the r; tch. The said wheel 34 is mounted upon the main winding-arbor 35 which carries the main-spring barrel 36 and also the mainwheel 37 which meshes into a pinion of the center-wheel 39. The springactuated pawl 10 engaging with the main winding-wheel 3st, holds the same against reverse rotation under the action of the mainspring.

In the use of my improved mechanism, the stem let and crown-wheel 15 are normally pushed inward, whereby the yoke 25 is held in its normal position in which it is shown by Fig. 2 with the windingwheel 32 in mesh with the main windingwheel 34. To set the watch, the crown 15 is pulled outward, whereby the outer end 12 of the primary setting-lever 5 is pulled outward and the lever rocked. upon the screw 8 with the effect of pressing the nose 17 of the lever against the bevel 18 of the secondary setting-lever 25, then rocked on the movement pillar with the effect of crowding its rear end inward against the stud 2-1, and rocking the yoke 25 against the tension of its spring 41, into the position shown in Fig. l in which the windingwheel 32 is disengaged from the main winding-wheel 3% and in which the setting-wheel 31 is engaged with the minute-wheel 33 of the dial work. The yoke 25 is held in this position during the setting ope ation, by the snapping of the nose 17 of the primary setting-lever 5 into the notch 19 of the secondary setting-lever 20. After the completion of the setting operation, the crown 15 is again pushed inward, with the effect of crowding the nose 17 out of the notch 19 and permitting the spring 41 to reassert itself in rocking the yoke 25 back into its normal position in which it is shown in Fig. 2.

I claim In a stem-winding and stem-setting watch of the type in which the stem is pulled out for setting, the combination with the front and rear movement-plates thereof, of a bridge interposed directly between the upper edges of the said plates which it spaces apart and having the front face of one of its ends recessed, a winding-and-setting pinion journaled in the said bridge, a winding-and-setting stem mounted in the said pinion which it rotates, but in which it has longitudinal movement, a primary setting-level. interposed between the recessed front face of the bridge and the rear face of the said front movement-plate and pivotally mounts l upon the screw employed for securing the recessed end of the bridge to the front movement-plate, means for securing the opposite end of the bridge to both of the movement-plates, a secondary setting-lever co-acting with the said primary setting-lever, and wind ing-and-setting means alternately brought into play by the action of the said levers.

FREDERICK \VEHINGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images