US159363A - Improvement in center-wheels for watches - Google Patents
Improvement in center-wheels for watches Download PDFInfo
- Publication number
- US159363A US159363A US159363DA US159363A US 159363 A US159363 A US 159363A US 159363D A US159363D A US 159363DA US 159363 A US159363 A US 159363A
- Authority
- US
- United States
- Prior art keywords
- center
- watches
- wheels
- post
- improvement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000003746 Feathers Anatomy 0.000 description 12
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
Definitions
- Figure 1 of the drawings is a representation of a side view of my device.
- Fig. 2 is a sectional view of the same.
- Fig. 3 is a side, and Figs. 4 and 5 detail views of the same.
- This invention has relation to self releasing and tightening devices which are applicable to the center-wheel pinions of the American watches.
- my lnvention consists in a collar which has serrations on one end and doubleinclined planes on its other end, in combination with a center-wheel pinion having serrations formed on one end, and also with feathers formed on the setting-post, as will be hereinafter explained.
- A represents a center-wheel, which is keyed on its settingpost C; and B designates a center-wheel pinion, which is applied 011 the enlarged cylindrical portion cot the post 0, and constructed with an annular series of V-shaped radial serrations, a, on one end.
- D designates a collar, which is applied on the reduced portion 6 of post 0, between two feat-hers, c c, and the pinion B. This collarhas V-shaped radial serrations a on one end, which correspond to, and engage with, the serrations a on center-pinion 13. ()n the other end of collar D two inclined planes, b b, are formed, each one of which is semicircular, as shown by Figs. 4 and 5.
- the feathers c c are formed on the post 0 diametrically opposite each other, and have their ends beveled to correspond to the inclined planes la b of collar D, and for the purpose of allowing this collar to be applied on its post I form grooves t i in it, as shown in Figs. 2 and 5.
- the collar D having serrations a on its upper end, and double inclined planes b b on the lower end, in combination with the centerpinion 13, provided with radial serrations a, and the feathers c c of post 0, substantially as shown and described.
- the post 0 having diametrically opposite each other the feathers c, and their upper ends beveled to correspond to the inclined planes 1), as specified.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Forging (AREA)
Description
M. (3. SMITH.
Center-Wheel for Watches. 7
N0.59,363. PatentedFeb.2,l875.
IHHIHHHHHHHHHH H I! iii@ii'ElEHHIHHiEHlII WITNESSES INVEQ'OR r 7 7 fi'r zWN ATTORNEYS.
UNITED STATES PATENT OFFICE.
MARTIN 0. SMITH, OF EARLVILLE, ILLINOIS.
IMPROVEMENT IN CENTER-WHEELS FOR WATCHES.
Specification forming part of Letters Patent N0.159,363, dated Fol ruary 2, 1875; application filed December 27, 1873.
To all whom it may concern:
Be it known that I, MARTIN 0. SMITH, of Earlville, in the county of La Salle and State of Illinois, have invented a new and valuable Improrement in W atch-Wheels; and I do here by declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.
Figure 1 of the drawings is a representation of a side view of my device. Fig. 2 is a sectional view of the same. Fig. 3 is a side, and Figs. 4 and 5 detail views of the same.
This invention has relation to self releasing and tightening devices which are applicable to the center-wheel pinions of the American watches.
The nature of my lnvention consists in a collar which has serrations on one end and doubleinclined planes on its other end, in combination with a center-wheel pinion having serrations formed on one end, and also with feathers formed on the setting-post, as will be hereinafter explained.
The following is a description of my invention:
In the annexed drawings A represents a center-wheel, which is keyed on its settingpost C; and B designates a center-wheel pinion, which is applied 011 the enlarged cylindrical portion cot the post 0, and constructed with an annular series of V-shaped radial serrations, a, on one end. D designates a collar, which is applied on the reduced portion 6 of post 0, between two feat-hers, c c, and the pinion B. This collarhas V-shaped radial serrations a on one end, which correspond to, and engage with, the serrations a on center-pinion 13. ()n the other end of collar D two inclined planes, b b, are formed, each one of which is semicircular, as shown by Figs. 4 and 5. The feathers c c are formed on the post 0 diametrically opposite each other, and have their ends beveled to correspond to the inclined planes la b of collar D, and for the purpose of allowing this collar to be applied on its post I form grooves t i in it, as shown in Figs. 2 and 5.
When the collar D is applied on the post (I and turned in a direction corresponding to the direction given to it by the inainspring of a watch, when such spring is wound up the beveled or inclined surfaces 1) b will bear against the feathers c c and force the pinion D snugly against the center-wheel A, thus en gaging teeth a a and locking the center-pinion fast to its post 0. In the event of the mainspring being broken the recoil of this spring will turn back the collar D, and thus loosen the pinion B and allow it to turn freely. I thus prevent the teeth of the train of wheels from being broken when a mainspriug breaks.
\Vhat I claim as new, and desire to secure by Letters Patent, is-
1. The collar D, having serrations a on its upper end, and double inclined planes b b on the lower end, in combination with the centerpinion 13, provided with radial serrations a, and the feathers c c of post 0, substantially as shown and described.
2. The post 0, having diametrically opposite each other the feathers c, and their upper ends beveled to correspond to the inclined planes 1), as specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
MARTIN O. SMITH.
Attest WM. R. HAIGHT, WILLIAM WIESON.
Publications (1)
Publication Number | Publication Date |
---|---|
US159363A true US159363A (en) | 1875-02-02 |
Family
ID=2228773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US159363D Expired - Lifetime US159363A (en) | Improvement in center-wheels for watches |
Country Status (1)
Country | Link |
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US (1) | US159363A (en) |
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0
- US US159363D patent/US159363A/en not_active Expired - Lifetime
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