US140944A - Improvement in escapements for watches - Google Patents
Improvement in escapements for watches Download PDFInfo
- Publication number
- US140944A US140944A US140944DA US140944A US 140944 A US140944 A US 140944A US 140944D A US140944D A US 140944DA US 140944 A US140944 A US 140944A
- Authority
- US
- United States
- Prior art keywords
- wheel
- escapement
- balance
- watches
- escapements
- 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
- 238000010276 construction Methods 0.000 description 4
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
- G04B15/00—Escapements
- G04B15/06—Free escapements
Definitions
- my invention consists in the construction and arrangement of a watchinovement to form an escapement having no setting-point or dead-center, as will be hereinafter more fully set forth.
- A representsl the escapement-wheel, B the balance-wheel, and O the hair-spring, ot' a watch-movement.
- the escapement-wheel A meshes with a four-cogged pinion, a., upon a shaft, b, which passes up through the dialplateD, and has upon it the secondhand E.
- These detent-cogs have rounded surfaces, on which the teeth ot' the escapement-wheel repose or lock.
- a plate, d which has a cam or oval impulse-fang, c, at each end, as shown in Figs. 3 and 4.
- One of the ruby-pins at each return ofthe balance by the force of the hair-sprin g, strikes one of the fangs, and this touch against the fangs serves to unlock the tooth of the escapement-wheel from one of the cogs ot" the fourleaf detent, which action instantlylets the force otl the mainspring against the side of the detent-tooth.
- One of the fangs takes hold of the opposite ruby-pin the instant it leaves the other ruby-pin, thus alternately unlocking the detent and giving the required impulse to the balance, and leaving the sau', balance, and disk entirely free from the least pressure ot' the motive-power at all times, except when giving the impulse.
- the ruby-pins unlock the escapement-wheel from the detent by the unspent force of the hair-spring, and places alternately each of the oval impulse-fangs in the exact position to give the balance its impulse both backward and forward, forming an escapement with no setting-point or dead-center.
Description
' D. J. MOZART.
` Escapements for Watches. NO.140,944. Patentedluy15,1873.
.dt/Orney-s,
AM. PHorM/THDGHAPHIC co. N. Mosaamvf moeb'ssf UNITED STATES PATENT OFFICE.
DON J. MOZART, OF ANN ARBOR, MICHIGAN.
IMPROVEMENT IN ESCAPEMENTS FOR WATCHES.
Specification forming part of Letters Patent No. 140,944, dated lJuly 15, 1873 application filed May 14, 1873.
GAsE A.
To all whom it may concern:
Beit known that I, DON J. MOZART, of Ann Arbor, in the county of Washtenaw and in the State ot' Michigan, have invented certain new and useful Improvements in Watches; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters ot' reference marked thereon making a part of this specification.
The nature of my invention consists in the construction and arrangement of a watchinovement to form an escapement having no setting-point or dead-center, as will be hereinafter more fully set forth.
In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure l is a View of so much ot' a watchmovement as will illustrate my invention; and Figs. 2, 3, 4, and 5 are detached views ot' the parts constituting my invention.
A representsl the escapement-wheel, B the balance-wheel, and O the hair-spring, ot' a watch-movement. The escapement-wheel A meshes with a four-cogged pinion, a., upon a shaft, b, which passes up through the dialplateD, and has upon it the secondhand E. These detent-cogs have rounded surfaces, on which the teeth ot' the escapement-wheel repose or lock. On the shaft b is secured a plate, d, which has a cam or oval impulse-fang, c, at each end, as shown in Figs. 3 and 4. fis the shaft or staff of the balance-wheel B, and upon the same is secured a disk, h, which is cnt out on one side, as shown in Figs. 4 and 5, and at each end of said'cut-out is inserted a rubypin, t', to work against the fangs c c upon the escapement-wheel shaft b.
The movement of these parts is readily understood by reference to Fig. 4, in which I have shown the fangs in the two positions in which they are stopped by the ruby-pins t' i'. One of the teeth of the escapement-wheel, at every oscillation of the balance-stad' and disk with the two ruby-pins, reposes or locks on the rounded surface of the detent-cogs until the balance-wheel, by the force of the hairspring, has returned to the setting-point and expended its force, which does not occur until one ot' the ruby-pins ot' the disk has come in contact with one ofthe fangs or impulse-points c. One of the ruby-pins, at each return ofthe balance by the force of the hair-sprin g, strikes one of the fangs, and this touch against the fangs serves to unlock the tooth of the escapement-wheel from one of the cogs ot" the fourleaf detent, which action instantlylets the force otl the mainspring against the side of the detent-tooth. One of the fangs takes hold of the opposite ruby-pin the instant it leaves the other ruby-pin, thus alternately unlocking the detent and giving the required impulse to the balance, and leaving the statt', balance, and disk entirely free from the least pressure ot' the motive-power at all times, except when giving the impulse.
The ruby-pins unlock the escapement-wheel from the detent by the unspent force of the hair-spring, and places alternately each of the oval impulse-fangs in the exact position to give the balance its impulse both backward and forward, forming an escapement with no setting-point or dead-center.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is
The detent a and plate d with fangs e c upon the Vshat't b, and the disk It with the rubypins/i il upon the balance-stattf, all constructed as described, and arranged to operate in combination with the escapement-Wheel A, balance-wheel B, and hair-spring C, substantial] y as and .for the purposes herein set forth.
In testimony that I claim the foregoing 1 have hereunto set my hand this 2d day ot' May, 1873.
DON J. MOZART.
'Vitnesses G. L. EVERT, A. N. MARE.
Publications (1)
Publication Number | Publication Date |
---|---|
US140944A true US140944A (en) | 1873-07-15 |
Family
ID=2210357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US140944D Expired - Lifetime US140944A (en) | Improvement in escapements for watches |
Country Status (1)
Country | Link |
---|---|
US (1) | US140944A (en) |
-
0
- US US140944D patent/US140944A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US140944A (en) | Improvement in escapements for watches | |
US594446A (en) | Balance-escapement | |
US8409A (en) | Escapement fob timepieces | |
US59658A (en) | Improvement in escapements for time-pieces | |
US1105062A (en) | Equalizing unlock and impulse action escapement. | |
US474301A (en) | C h ron o m xter-escapement | |
US172165A (en) | Improvement in chronometer-escapements for watches | |
US155044A (en) | Improvement in lever - escapements for watches | |
US31999A (en) | Watch-escapement | |
US220849A (en) | Improvement in escapements for time-pieces | |
US185323A (en) | Improvement in escapements for watches | |
US2939A (en) | Watch | |
US194744A (en) | Improvement in watch-escapements | |
US321611A (en) | krichevski | |
US138350A (en) | Improvement in the winding-clicks of watches | |
US258473A (en) | Clock-escapement | |
US137603A (en) | Improvement in clock-escapements | |
US725037A (en) | Balance-escapement. | |
US764137A (en) | Escapement for watches. | |
US46576A (en) | Improvement in escapements for time-pieces | |
US16727A (en) | Chronometer-escapement | |
US685905A (en) | Balance-escapement. | |
US5045A (en) | Clock | |
US171583A (en) | Improvement in clock striking mechanisms | |
US168582A (en) | Improvement in escapements for watches |