US352326A - Stop-watch - Google Patents
Stop-watch Download PDFInfo
- Publication number
- US352326A US352326A US352326DA US352326A US 352326 A US352326 A US 352326A US 352326D A US352326D A US 352326DA US 352326 A US352326 A US 352326A
- Authority
- US
- United States
- Prior art keywords
- watch
- stop
- arbor
- wheel
- slide
- 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
- 230000002093 peripheral Effects 0.000 description 2
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/06—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator running only during the time interval to be measured, e.g. stop-watch
Definitions
- This invention relates to anew arrangement or combination of parts for promptly arresting the movement of a watch or the like, and for setting it into operation again when desired.
- my invention consists in combining a certain springslide with the arborof the balance-wheel, the parts being arranged so that when the springslide is moved in one direction it will be crowded tightly against the arbor of said balancewheel, so as to prevent the latter from moving, thereby stopping the watch, but when said spring-slide is afterward moved in the opposite direction it will, by peripheral contact with the said arbor, re-
- the letter a represents the arbor of the balance-wheel! of a watch, a.
- d is a sliding rod moving in suitable guides, c, and carrying at its inner end an elastic or spring arm,f.
- This arm when the parts are in the position shown in Fig. 1, is not in contact with the arbor a, but is near said arbor.
- the slide at is moved into the position shown in Fig. 2, its spring-arm f is pressed tightly against the arbor a of the balance-wheel, and thereby prevents said balance-wheel from further oscillation.
- the spring slide df constitutes afriction-brake for while continue this frictional contact and serve to impart rotary motion or a partial rotation to the arbor a.
- the slide (1, carrying the elastic arm f, all adapted to bring said elastic arm in contact with said arbor at right angles with the axis thereof, and to move said arbor by, moving said slide, as specified.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Description
(No Model.)
A. '0. JENNINGS.
STOP WATCH.
No. 352,326. Patented Nov. 9, 1886.
ATTORNEYLS'.
N. PETERS, PhowLixm m mr. Washi nnnnnn C.
UNITED STATES ARTHUR 0. JENNINGS, OF SQUTHPORT, CONNECTICUT.
PATENT OFFICE.
STOP-WATCH.
SPECIFICATION forming part of Letters Patent No. 352,326, dated November 9, 1886.
(No model.)
T0 all whom it may concern:
Be it known that I, ARTHUR 0. JENNINGS, a resident of Southport, in the county of Fairfield and State of Connecticut, have invented an Improved Stop-\Vatch, of which the following is a full, clear, and exact description, reference being made to the accompanying drawings, in which Figure 1 represents a face view, partly in section, of my improved stop-watch. Fig. 2 is a face View, partly in section, of part of the same. Fig. 3 isaside view of the stopping arrangement.
This invention relates to anew arrangement or combination of parts for promptly arresting the movement of a watch or the like, and for setting it into operation again when desired.
In the stop-watch devices that are now in use the arresting of the movement seems to have been the sole aim of the constrncters, they being apparently satisfied that the spring in the watch will at all times suffice to set the parts in motion again as soon as they may be relieved from the stop mechanism; but I find that in many watches, especially the less expensive kinds, it does not always follow that the watch will instantly resume its action upon being relieved from the arresting device, and
I therefore have so constructed the arresting device in my invention that it will constitute a starting device while being withdrawn from the works which it had previously arrested.
To this end my invention consists in combining a certain springslide with the arborof the balance-wheel, the parts being arranged so that when the springslide is moved in one direction it will be crowded tightly against the arbor of said balancewheel, so as to prevent the latter from moving, thereby stopping the watch, but when said spring-slide is afterward moved in the opposite direction it will, by peripheral contact with the said arbor, re-
volve the same part way before leaving contact with it, and thereby start the works in motion while releasing them.
In the drawings, the letter a represents the arbor of the balance-wheel!) of a watch, a.
d is a sliding rod moving in suitable guides, c, and carrying at its inner end an elastic or spring arm,f. This arm, when the parts are in the position shown in Fig. 1, is not in contact with the arbor a, but is near said arbor. \Vhen afterward the slide at is moved into the position shown in Fig. 2, its spring-arm f is pressed tightly against the arbor a of the balance-wheel, and thereby prevents said balance-wheel from further oscillation. Thus the spring slide df constitutes afriction-brake for while continue this frictional contact and serve to impart rotary motion or a partial rotation to the arbor a. Thus the works are started by positive movement, and any failure of the springs of the watch to start it after the stop has been withdrawn will be avoided.
I claim In combination with the arbora of the bal ance-wheel of a watch or analogous structure, the slide (1, carrying the elastic arm f, all adapted to bring said elastic arm in contact with said arbor at right angles with the axis thereof, and to move said arbor by, moving said slide, as specified. p
. ARTHUR 0. JENNINGS. Witnesses:
GEO. GOODYEAR, CHARLES G. M. THOMAS.
Publications (1)
Publication Number | Publication Date |
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US352326A true US352326A (en) | 1886-11-09 |
Family
ID=2421384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US352326D Expired - Lifetime US352326A (en) | Stop-watch |
Country Status (1)
Country | Link |
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US (1) | US352326A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110164474A1 (en) * | 2002-02-01 | 2011-07-07 | Lvmh Swiss Manufactures Sa | Device comprising a clock movement and a chronograph module |
CH703576A2 (en) * | 2011-03-22 | 2012-01-13 | Lvmh Swiss Mft Sa | Mechanical movement for use in mechanical chronograph, has launcher giving impulse to staff or hub mounted on staff, to start regulator unit when user starts chronograph, and regulator unit comprising hairspring mounted on staff |
CN104111600A (en) * | 2013-04-18 | 2014-10-22 | 格拉斯许特钟表有限公司 | Tourbillon |
-
0
- US US352326D patent/US352326A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110164474A1 (en) * | 2002-02-01 | 2011-07-07 | Lvmh Swiss Manufactures Sa | Device comprising a clock movement and a chronograph module |
US20110164477A1 (en) * | 2002-02-01 | 2011-07-07 | Lvmh Swiss Manufactures Sa | Device comprising a clock movement and a chronograph module |
US8182138B2 (en) * | 2002-02-01 | 2012-05-22 | Lvmh Swiss Manufactures Sa | Device comprising a clock movement and a chronograph module |
US8308345B2 (en) | 2002-02-01 | 2012-11-13 | Lvmh Swiss Manufactures Sa | Device comprising a clock movement and a chronograph module |
CH703576A2 (en) * | 2011-03-22 | 2012-01-13 | Lvmh Swiss Mft Sa | Mechanical movement for use in mechanical chronograph, has launcher giving impulse to staff or hub mounted on staff, to start regulator unit when user starts chronograph, and regulator unit comprising hairspring mounted on staff |
CH703576A3 (en) * | 2011-03-22 | 2012-03-15 | Lvmh Swiss Mft Sa | Mechanical movement for chronograph watch. |
WO2012127019A1 (en) | 2011-03-22 | 2012-09-27 | Lvmh Swiss Manufactures Sa | Mechanical movement for a chronograph watch |
CN104111600A (en) * | 2013-04-18 | 2014-10-22 | 格拉斯许特钟表有限公司 | Tourbillon |
US20140313865A1 (en) * | 2013-04-18 | 2014-10-23 | Glashuetter Uhrenbetrieb Gmbh | Tourbillon |
US8939639B2 (en) * | 2013-04-18 | 2015-01-27 | Glashuetter Uhrenbetrieb Gmbh | Tourbillon |
CN104111600B (en) * | 2013-04-18 | 2017-04-12 | 格拉斯许特钟表有限公司 | Tourbillon |
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