US152113A - Improvement in hand-setting attachments for watches - Google Patents

Description

G. HUNTER.` Hand-Setting Attachments for Watchs.

l Patented June t6, 1874.

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WITNE55E5= MQKM@ UNITED STATES PATENT OFFICE.

GEORGE HUNTER, OF ELGIN, ILLINOIS, ASSIGNOR OF ONE-TENTH HIS RIGHT TO THE NATIONAL WATCH COMPANY, OF SAME PLACE.

y IMPROVEMENT IN HAND-SETTING ATTACHMENTS FOR WATCHES.

Specilcntion forming part of Letters Patent Ne. 152,113, dated June 1G. U74; application filed March 30, 1874.

To all whom it may concern:

Be it known that I, GEORGE HUNTER, ot Elgin, in the county of Kane and in the State of Illinois, have invented certain new and useiul Improvements in Hand Setting Attachments for Watches; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing making a part of this specification, in which- Figure 1 is a planview ofthe upper or face side of a watch-movement containing my improved attachment. Fie. 2 is an enlarged plan view of the toothed drivin g-ring, and the pivoted lever within which it is journaled. Fig. 3 is a sectionot' the same upon line x x of Fig. 2. Fig. 4. is a plan view and a side elevation of the cannon-pinion; and FiU. 5 is a plan view and a longitudinal section of the lever employed for throwing the setting attachment into engagement, and for locking the winding-gearin fr.

Letters of like name and kind refer to like parts in each of the figures.

The object of my invention is to simplify the construction and increase the eiiiciency ot" mechanism employed for setting the hands of a watch through or by means of the stem or push-pin; and it consists, principally, in an externally and internally toothed ring surrounding the cannon pinion, and capable of lateral adjustment, so as to cause its inner teeth to engage with the same, and its external teeth to simultaneously mesh with one of the wheels ot' the winding-train, substantially as and for the purpose hereinafter specified. It consists, further, in the construction of the pivoted lever upon which the toothed rin gis journaled, and its combination with said ring, substantially as and for the purpose herein after shown.

In the annexed drawing, A represents the upper plate ot' a watch-movement, vwithin which are journaled the center-wheel stati' I3, winding-arbor and other portions of an ordinary train. The cannon-pinion D, placed upon, and revolving with, the stati' B, is of usual construction, except that at its lower end is provided a disk, d, which has a somewhat larger diameter, and is serrated or toothed upon its periphery, as seen in Fig. 4. Within a recess formed in the plate A, below the dialwheel E, is placed a ring, F, which, upon its inner periphery, is provided with teeth or scrrations f, that correspond to the tooth upon the disk el ot' the pinion I), while upon the outer periphery of said ring are formed gearteeth j", ot usual size and shape, the interior dimensions of said ring being such as that, when placed equidistant at all points from said cannon-pinion, their contiguous surfaces shall not come into contact. Vithin the upper side of the toothed ring F is formed a recess, f", the bottom of which is parallel with its faces, while the side of said recess inclines upward and inward, as seen in Fig. 3.

The recess f, thus constructed, receives a correspondingly-shaped annular boss 0r enlargement, g, that is formed upon one end of a bar, G, a section ot' said boss being removed, so as to enable it to be sprung together sut'- iicientl y to pass within said recess, after which, by expansion, it will be caused to closely fill the latter, and will then furnish a bearing for and upon which the rin g F may revolve.

The bar or lever G, having the form shown in Figs. l, 2, and 3, is pivoted, at or near its longitudinal center, upon the plate A, and, moving in a horizontal plane, enables the toothed ring F to be thrown laterally into or out ot' engagement with the cannon-pinion D.

'When the toothed ring F is thrown into engagement with the cannon-pinion D, its outer teeth f mesh with the corresponding teeth ot' a spur-gear wheel, H which latter forms the main wheel of the train that connects the windingarbor O and the stem or push-pin I, and enables said arbor to be revolved within its bearings by said stein by which means it will be seen that the motion of said stem, communicated through said gear II and toothed ring F, will cause said cannon-pinion to revolve, and thus enable the hands to be adjusted.

As the means employed for throwing the hand-settingdevices into or out of engagement will vary with styles of movement to which said devices are attached, no especial description of such means is required, those used in 2 lla32,il3

this instance being suticiently illustrated in the drawings.

Although the serrated disk or enlargement at the lower end ofthe cannon-pinion is, pret erably, employed, if desired said pinion may have its length increased to correspond with the thickness ofthe toothed ring, and the latter caused to engage with the usual teeth formed upon said pinion.

The advantages obtained by my improvement are, rst, the hand-setting parts are entirely disconnected from either the Watch or the winding-trains when not in use, and in no manner increase the bulk or change the operation of thesame; second, in construction the operative parts are simple, durable, not liable to get out of order, and add but slightly to the cost of a watch.

Having thus fully set forth the nature and merits of my invention, what I claim as new 1s- ,l. The ring I?, provided with the internal and external teeth f and jy, respectively, sur rounding the cannon-pinion D, and capable ot' lateral adjustment, so as to cause said teeth j" to engage with said pinion and its teethf, to simultaneously mesh with the teeth of the spurgear H, substantially as and for the purpose specified.

2. The internally and externally toothed ring F, provided with the rccessf, in combination with the bar or lever Gr, having the sectional annular boss or enlargement g, substan tially as and for the purpose shown.

In testimony that I claim the foregoing I have hereunto set my hand this 21st day of March, 1874.

GEORGE IIUNIFR.

Witnesses:

P. S. BAn'rLnr'r, CnAs. S. Mosnnnv.

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