US387306A - Stem winding and setting watch - Google Patents

Description

(ModeL) A. L. KELLER.

STEM WINDING AND SETTING WATCH.

Patented Aug. '7, 1888.

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UNITED STATES PATENT ABRAHAM L. KELLER, OF SPRINGFIELD, MASSACHUSETTS.

STEM WlNDlNG AND SETTlNG \NATCH.

SPECIFICATION forming part of Letters Patent No. 357,306, dated August 7, 1888.

Application filed November 8,

T0 (LZZ whom it may concern.-

Be it known that I, ABRAHAM L. KELLER, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in Watches, of which the following is a specification.

My invention relates to improvements in watches in which a conical pin operates in conjunction with a conical winding-stem and a shipping-plate, also provided with a conical pin,operating in conjunction with the springplate carrying the conical pin that operates in conjunction with the crown-stem; and the objects of my improvements are, first, to provide a watch with stem-winding and hand-setting mechanism which shall be simple, durable, positive in action, and easily operated, and that it is intended for any pendant-winding and hand-setting watch. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan of my mechanism in its normal position for winding, Fig. 2 is also a plan showing the mechanism in position for setting the hands. Figs. 3, 4, and 5 are detail parts of the same.

Similarletters refer to similar parts through out the several views.

The case is provided with a pendant, A,into which is fitted a crown-stem, h, to which is secured the crown or knob Z. The stem h has its inner end formed into a square to which is fitted the pinion g. Said pinion is held in its place by a recess formed in the plate B, while the crownstem is moved endwise, as hereinafter described. The stem h is also provided with a conical-shaped portion, 0, which has for its function to throw the hand-setting and winding gears in and out of action by moving the crown-stem endwise. The vibratingyoke j is pivoted upon the axis of the gearwheel a. A spring, m, keeps this plate in its normal position, as shown in Fig. 1. When in this position the winding-gears b and fare in mesh, and in this position the crown-stem is pushed in and is in its normal position, as shown in Figs. 1 and 3. The spring-plate z is provided with a conical pin, p,which operates in conjunction with the conical portion of thecrown-stem. Said spring-plate t has its 1986. SerialNoQ19343. (Model) free end provided with an inclined surface g, which acts in conjunction with a conical pin, a, secured to the under side of the oscillating yoke j. Vhen the crown-stem is pulled out, the conical pin or stud p rests on the highest portion of the cone of the stem h, as shown in Fig. 4, and the inclined end of the springplate 2' has caused the vibrating yokejto move forward until the gears c and (Z mesh,and thus motion is communicated to the hand-arbor Wheel 6 by rotating the crown-stem in either direction. \Vhen the hands have been adjusted, the crown-stem is pressed in and the conical stud p assumes aposition, as shown in Figs. 3 and 5. Simultaneous with this movement the conical stud n is also relieved, and spring m carries back the vibrating yokej to its normal position, as shown in Figs. 1, 8, and 5. \Vhen in this position, the gears e and d are out of action with the gear a, and gear a and I) now communicate motion to the winding-gear f in the manner shown in Fig. 1. When the crown-stem is rotated, the springm also acts as a safety-spring should the crownstem be revolved in the wrong direction. In this case the wheel I) would lift itself out of gear with the gear f. In other words, the spring at is not strong enough to hold the gears 11 andfin mesh when the crown-stem is turned in the wrong direction.

I preferably make the studs or pins n andp conical, so that they have a free and easy ac tion in sliding over their respective surfaces. These points are hardened, and the whole action is thus very durable, yet simple.

Having thus fully described my invention, what I therefore desire to secure by Letters Patent is=- 1. The combination, with the gears of the winding-drum and dial hand-arbor, of the vibrating yoke provided with the intermediate gears, and the spring-plate having an inclined end for connection with the conical pin on the yoke and spring m,and the crown stem having both a rotary and longitudinal movement, and intermediate mechanism whereby the watch may be either wound or the hands adjusted, as set forth.

2. The combination, with the winding and hand arbors, of the vibrating yoke pivoted concentric about the axis of gear a. and pro- ICO the manner substantially as shown and described.

4. The combination, substantially as herer5 inbefore set forth, of the crownsternh, springplate z, oscillating gear-plate j, gear'wheels a, b, c, d, e, andf, all arranged to operate in the manner and for the purpose set forth.

ABRAHAM L. KELLER.

Witnesses:

J UDD B. GIBsoN, T. P. LEONARD.

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