US760647A - Stem winding and setting mechanism. - Google Patents

Stem winding and setting mechanism. Download PDF

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Publication number
US760647A
US760647A US17548403A US1903175484A US760647A US 760647 A US760647 A US 760647A US 17548403 A US17548403 A US 17548403A US 1903175484 A US1903175484 A US 1903175484A US 760647 A US760647 A US 760647A
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United States
Prior art keywords
stem
setting mechanism
winding
arm
lever
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Expired - Lifetime
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US17548403A
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Henri Sandoz
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel

Definitions

  • Figures 1 and 2 are elevations, and Fig. 3 a plan, of the winding and setting mechanism.
  • This mechanism has an extremely limited number of parts. Its action is reliable and extremely simple.
  • a lever A pivoting at a, has three efiective ends, the one, a, engaging in the groove E of the winding-stem G, the second, in the form of a nose, being intended to act on the arm B, and the third, M, being under the influence of a spring R, one end of which engages in the notch 9 while the other end of this same spring lodges at r against the arm B, which is pivoted at o, the said arm B engaging in the groove S of the movable pinion D.
  • the spring R thus tends at the same time to raise the stem G and the movable pinion D, so as to place it in contact with the wheel F.
  • the position of the parts shown in Fig. 1 is that for setting the hour, the movable pinion being in contact with the motion-work wheel (Z. This position is insured by the nose C entering a recess 0 in the arm B.
  • the stem G is most generally controlled by a crown stem which is adjusted in the pendant and known as American stem.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

PATENTED MAY 24, 1904.
H.8ANDOZ.. STEM WINDING AND SETTING MEGHANI$M.
APPLICATION FILED 0(JT.Z, 1963.
N0 MODEL.
Norms Pqas co PHOI umo ASHINGTON o c UNITE STATES Patented May 24, 1904.
PATENT OFFICE.
STEM WINDING AND SETTING MECHANISM.
SPECIFICATION forming part of Letters Patent No. 760,647, dated May 24, 1904.
Application filed October 2, 1903- To all whom it may concern.-
Be it known that I, HENRI SANDOZ, a citizen of the Republic of Switzerland, and a resident of Tavannes, Switzerland, have invented a new inding and Setting Mechanism, of which the following is a specification.
One form of the winding and setting mechanism which constitutes the object of this invention is illustrated in the accompanying drawings, given by way of example.
Figures 1 and 2 are elevations, and Fig. 3 a plan, of the winding and setting mechanism.
This mechanism has an extremely limited number of parts. Its action is reliable and extremely simple.
A lever A, pivoting at a, has three efiective ends, the one, a, engaging in the groove E of the winding-stem G, the second, in the form of a nose, being intended to act on the arm B, and the third, M, being under the influence of a spring R, one end of which engages in the notch 9 while the other end of this same spring lodges at r against the arm B, which is pivoted at o, the said arm B engaging in the groove S of the movable pinion D. The spring R thus tends at the same time to raise the stem G and the movable pinion D, so as to place it in contact with the wheel F.
The position of the parts shown in Fig. 1 is that for setting the hour, the movable pinion being in contact with the motion-work wheel (Z. This position is insured by the nose C entering a recess 0 in the arm B. A bridge 10, fixed by two screws 4) Q) on the plate P, supports the three different parts of the mechanism. If the stem G be pressed, the nose O Serial No. 175,484. (No model.)
is moved back, Fig. 2, and no longer retains the arm B, which under the influence of the spring R brings the movable pinion into contact with the crown F, this being the Winding-up position.
The stem G is most generally controlled by a crown stem which is adjusted in the pendant and known as American stem.
The dimensions and to a certain extent the forms of the parts of this mechanism may vary.
Having now described my invention, I claim as new and wish to secure by Letters Patent In winding and setting mechanism for watches, the combination with a plate of a winding-stem having a groove E therein, and having also a reduced portion, a crown-wheel F on said reduced portion, a sleeve D slidably mounted on said reduced portion and having a groove S therein, a three-arm lever A pivoted to the plate and having one of its arms engaging in the slot E, a second lever B engaging in the groove S and having a slot therein, said slot being in the axial line of the pivot of lever A, and a spring having one end engaging with the lever B and its other end engaging with one arm of the three-arm lever A, the third arm of said lever being adapted to engage in the slot in the lever B when the hands are to be adjusted.
In witness whereof I have hereunto set my hand in presence of two witnesses.
HENRI SANDOZ.
Witnesses:
ARMAND TENOLET, JEAN J AQUET.
US17548403A 1903-10-02 1903-10-02 Stem winding and setting mechanism. Expired - Lifetime US760647A (en)

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