US2482351A - Watch movement beat adjusting device - Google Patents

Description

Sept. 20,1949. H. LINE WATCH MOVEMENT BEAT ADJUSTING DEVICE Filed April 2'7, 1945 Patented Sept. 20, 1949 TENT WA-TCH MOVEMENT BEAT KBJ U STIN G DEVICE Ma invention reiatesvtos new and; useful im.-:. provements lI'hjthBi antzofi'horologyiand more) part 'cularlv to an improvementrimwat-chizmovements; the;primaryobject:ofcthe inventionebeing tolpro- Vide alstructurez in-a watoh movementlwhich will 5 enable;awatchsmakertocorrecti the beat, or even- I ness; of: the tick; ct: a-watchwithout afiectingl the timingxthereofi. andi wzithoutc the-necessity: of l removingthe balancei-bridge;the hair: spring and adiunctiveipants. v

Arfurthenrobjectiofzthesinvention residesin pro viding separable 1 regulator" and: studzlnings, one fittedgwithimthe other; sotas tobelactuated simul taneouslyzinnne operationor separablm: as maybe desired, but without increasing: the thickness of the movement of the watch.

Alfurther. object. of the invention resides in the provision of a stud ring frictionally held between the jewel plate-on-a balan-ce-bridge-and the regulator ring, with the armof. saidstud ring'disposed and movable within the same plane as'the balance bridge.

A still further-obiectof the-inventionresides in providing-get structure whichwisasimple and durablein; construction, comparatively; inexpensiveto manufactureaand one which willlbeevery :efficient and useful in operation.

With these and'numerous other objects in view, my invention consists in theinovel features ()ficonstruetion; combinationand arrangement oteparts 3 asewill be. hereinafterreierredsto sand morelparticularly, pointed out in the specification and claim.

In the accompanying drawing forming a part of this application,

Figure l is a plan view of a portion of a watch movement, with my improvements embodied therein;

Figure 2 is a vertical sectional view therethrough, as seen on line 2-2, looking in the direction of the arrows;

Figure 3 is a vertical sectional view, as seen on line 3-3 of Figure 1, looking in the direction of the arrows;

Figure 4 is a fragmentary top plan view of the balance bridge with jewel plate applied, showing particularly the cutaway portion of the bridge;

Figure 5 is a top plan view of the regulator removed;

Figure 6 is a vertical sectional view therethrough, as seen on line 6-6 of Figure 5, looking in the direction of the arrows;

Figure 7 is a top plan view of the stud ring removed, and

Figure 8 is a vertical sectional View there- 2, through; asaseenronz-line- 8--81'ofa Figure 7; looking in, the :directiomof the ia'HQW$;-

Ordinarily; when .a lwatch-maklen finds it neces sary to correcothe beat ofla watchihe isrequireditoi remove the balancetbridge and adjunctivevpantw. with possible-damaget'ozthe rhain spring and, 10f

course, with considerable losszof time. When'dis sembling; the movement fon'this-npurpose; itissal'so possible that; oily :b alance pivots-may contactx ther hair spring making: itsnecessary toicleam tliezl'atter, which requires additional time, in-' addition to the. fact that lpart's. mayt be damagedi. While: the consumer may nottbe appreciative of these facts; same are wellt-known tmwatchrmalters:and deal ers. Therefore, art-structure which will enable the beat .o-f the, watch t'o-.be corrected without dissem bling partssofsitheumovement and withoutaffeeting the timing of the watch will be of great value tb theindustry andmy invention contemplates aeccmplishingathis desiredendi In; describing the inventi-on; I shall refer-tethe drawing, in which :similar rei'erences. characters designate corresponding parts throughout the" several views:andtalthough l li'ave not shown" ar completeawatch movement,-I have illustrated-sum cient t-hereof to permit offian understanding of the-* applicati'on to use ofmy-particular' invention; The numeral. I designates a -balancesbridge'of the usual construction, with tlie exception tl'iat same-is--out"-' awayto form a= recessas shown: at' Z-adj acent thv inner -end thereofg for a purpose to=be hereinafter and more particularly set forth. The oscillating balance or balance wheel is designated by the numeral 3 and positioned in the usual manner with respect to the bridge and the numeral 4 designates the hair spring.

Mounted on the inner nd of the balance bridge in the usual manner through the screws 5 is the jewel plate 6, the peripheral edge of which is bevelled inwardly from the upper to the lower edge thereof, said plate retaining in position on the bridge the usual jewel 1. Frictionally mounted on the jewel plate 6 to surround the latter is a stud ring 8 which is split as shown at 9 and has the inner periphery bevelled coincident to the bevelling of the periphery of said jewel plate with which the same frictionally contacts when applied, as clearly shown in Figures 3 and 7 of the drawing. This stud ring has formed integral therewith and extended laterally therefrom, in a plane at right angles to the vertical plane of the split 9, the stud arm IT]. This arm is formed integral with the lower edge of the ring 8 so as to be disposed in the same plane as the horizontal plane of the balance bridge l, as clearly shown in Figure 3 of the drawing and said arm II) has the stud ll formed thereon through which projects the pin I2, connecting in the usual manner with the hair spring 4.

Surrounding the stud ring 8 and separable therefrom is the regulator ring [3, which is split as shown at 14, the same being formed with the usual regulator arm [5 and the short arm [6, the latter being provided with the usual pins I! contacting or engaging the hair spring 4. The inner periphery of the ring ['3 is bevelled coincident to the bevel or inclination of the periphery of the stud ring 8 with which said regulator ring frictionally contacts, but it will be understood that the friction between the stud ring 8 and the jewel plate 6 is greater than the frictional contact between stud ring 8 and regulator ring 13. Thus, it is possible to oscillate the regulator ring without moving or afiecting the stud ring but upon movement of the stud ring in one direction or the other, the regulator ring will necessarily be moved therewith, unless held against such movement by holding the regulator arm 15. When all parts move together, as for instance when the stud ring is moved by actuating the stud arm, the effec tive length of the hair spring remains the same and thus correction of the beat or the tick of the watch may be accomplished with the timing of the watch remaining substantially unaffected.

When it is desired to regulate the timing of the watch, the regulator arm 15 is moved in the usual manner. When it is desired to correct the beat of the watch, the stud arm I0 is moved which, as aforesaid, will move the regulator ring and all adjunctive parts without changing the length of the hair spring and correspondingly without effecting a change in the timing of the watch.

By placing the stud ring between the jewel plate and regulator ring, the thickness of the movement is not increased, which is most desirable under present conditions where very thin watches are being produced for the wrist and otherwise. Placing the stud ring in this position necesarily requires the slight cutting away of the balance bridge so that the stud arm may be actuated within the cut-away portion and in the same plane as said bridge, in order not to increase thickness of the movement. Thus, the use of a separable stud ring with a stud arm formed in the fashion shown and hereabove described, to

operate in a cut-away portion of and in the same plane with the balance bridge forms the essential feature of this invention.

From the foregoing description of the construction of my improved watch movement, the method of applying same to use and the actual operation thereof will be readily understood, and it will be seen that I have provided a comparatively simple, inexpensive and eflicient means for carrying out the various objects of the invention. While I have particularly described the elements best adapted to perform the functions set forth, it is apparent that various changes in the form, proportion and in the minor details of construction may be resorted to, without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described my invention, what I claim is:

In a watch movement, a bridge, a jewel plate mounted against the upper face of one end of the bridge, a stud ring fitting snugly about the jewel plate and frictionally gripping the same and resting against the upper face of the bridge, said bridge having an arcuate edge face extending circumferentially of the jewel plate, an arm extending radially from the stud ring in downwardly olfset relation thereto opposite the arcuate edge face of the bridge and having its upper sur- .0 face flush with the upper face of the bridge,

and a regulator ring fitting snugly about the stud ring and frictionally gripping the same and resting against the upper face of the bridge and the upper surface of the arm of the stud ring and carrying an arm resting flat against the upper surface of the bridge.

HENRY LINE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 249,367 Kinehan Nov. 8, 1881 845,422 Lango Feb. 27, 1907 FOREIGN PATENTS Number Country Date 160,407 Germany Mar. 12, 1904 517,902 France Dec. 23, 1920

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