US790509A

US790509A - Watch.

Info

Publication number: US790509A
Application number: US22095404A
Authority: US
Inventors: Joseph Mazer
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-08-16
Filing date: 1904-08-16
Publication date: 1905-05-23
Anticipated expiration: 1922-05-23

Description

PATENTED MAY 23, 1905.

J. MAZER.

WATCH.

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INVENTOR.

UNITED STATES Patented Maly 23, 1905.

JOSEPH MAZER, OF SOUTH MCALESTER, INDIAN TERRITORY.

WATCH.

SPECIFICATION forming part of Letters Patent No. 790,509, dated May 23, 1905,

Application filed August 16, 1904. Serial No. 220,954.

To all whom it may concern:

).e it known that I, JOSEPH MAZER, a resident of South McAlester, Indian Territory, have invented a new and useful Improvement in latch-finding Indicators; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to an attachment for watches, clocks, and the like which is designed to indicate the extent to which the mainspring is wound, so that the observer may know not only when the springis fully wound or when it has run down, but also the extent to which it is wound at any particular moment, and the time when it will require rewinding.

In tusee or English-lever watches the winding-arbor turns one way when the watch is being wound and the opposite way when the watch is running, so that it is a simple matter to applya winding-indicator thereto, it only being necessary to provide a train leading' directly from the winding-arbor to the indicator-shaft, which train, arbor, and indicatorshaft turn one way when -the watch is being wound and the opposite way when the watch is running; but in watches in which the winding-arbor after the watch has been wound remains stationary while the ordinary train of the watch is driven from the mainspring-barrel it has been ditiicult to employ a windingindicator. It is not easy in such watches to design mechanism which will move the indicator when the watch is running' to indicate the extent to which the spring is unwound and which will bring the indicator back to zero when the watch is being wound.

It has been attempted to apply windingindicators to watches provided with going or safety barrels in several ways. Most of the mechanisms for this purpose have included in the train of gearing either a yielding or friction element which will slip when the watch is being wound, or said train included means whereby itI could be connected to and disengaged from the winding-arbor and going-barrel. In the last form of mechanism the train of gearing is necessarily complicated and with either form ot' gearing there is always liability that the parts will not come back accurately to the original position-that is, either by a slip in the friction element or by the teeth of the disengageable gearing' not always coming into correct mesh. As a result it is not certain in winding the watch that the indicator will be brought back to Zero. It has also been attempted to apply a winding-indicator to a watch ot' the character named by using planetary gearing mounted on the barrel and arranged in the train between the indicator and the winding-arbor and barrel. rIhe ditliculty with this arrangement is that the indicator will not be moved at the same speed when winding as when the watch is running, this being due to the fact that while the watch is running the planetary gearing in addition to the movement of rotation given thereto by the unwinding ot the mainspring also has a move- Ament ot' revolution around with the going'- barrel. As a result the indicator is moved a different distance while the watch is running than it is while winding, so that the indicator will not be brought back to Zero. Other attempts to apply winding-indicators to watches provided with a safety or going' barrel have resulted in complicated trains ot' gearing, and generally a pair of trains were necessary, one opeiating during winding and the other while running.

The object of my invention is to provide a winding-indicator for watches or clocks provided with a going or safety barrel in which the foregoing defects are overcome and in which a single train ot' gearing is employed and so arranged that it will insure the indicator being brought back exactly to Zero when the watch or clock is wound.

'lo these ends my invention consists, generally stated, in providing a single train of gearing between the going-barrel and winding-arbor on the one hand and the indicator on the other, which train is positive and non-yielding, is constantly in connection and never disengaged, and which will insure the indicator being moved through the same distance when winding as when running.

In the accompanying drawings, Figure lis a face view ot' a watch, showinga winding-indicator. Fig. 2 is a face View otl the watch with the dial and parts oi' the plate broken IOO away. Fig. 3 is a section on the line 3 3, Fig. 2; and Fig. 4 is a section on the line 44, Fig. 2.

In the drawings, 1 indicates the dial of the watch; 2, the bottom plate of the movement; 3, the winding-arbor, and 4 the going-barrel, in which the mainspring 5 is inclosed, with its inner end secured to the winding-arbor and its outer end secured to the going-barrel. rIhe going-barrel is provided on its periphery with the gear-teeth 6, whichengage with the usual train and drive the watch in the ordinary way. Only a portion of such watchtrain is indicated on the drawings, and as the same has the ordinary mode of operation and has no bearing on the invention claimed in this application it will not be described.

The winding-arbor 3 may be turned in winding the watch in any suitable way. In -the drawings a well-known form of stem-winding watch is shown. The winding-shaft 7 is provided with a gear 8, engaging the usual crowngear 9, and this is connected by an intermediate gear 10 to the ratchet-wheel 11, secured to the winding-arbor 3. A spring-pressed pawl 12 engages the teeth of the ratchet-wheel in a well-known manner, preventing the same from turning backward.

The dial 1 has on its face the small dial 4, which is marked with suitable designationsas, for instance, from zero( O) to "24 and also the words Wind up-and over which travels the indicator-hand 15. This hand is connected to the 'front end of an arbor 16, which projects through the dial and through a bearing 17 in the bottom plate 2 of the watch-movement. This bearing forms a center on which revolves the crown-gear 9 of the winding mechanism, the arbor 16 being located eccentrically therein, as shown.

To the inner end of the arbor 16 is secured a gear 18, meshing with the idler-gear 19, journaled on a projecting portion 20 of the plate 2, and which in turn meshes with a pinion 21, loosely mounted around the windingarbor. Suitably secured to the pinion 21 or formed integral therewith is the larger gear 22, also revolving loosely around the arbor 3 and meshing with a planetary pinion 23,mount ed to rotate on a stud 24, secured to the head ofthe going-barrel. Secured to or formed integral with .the pinion 23 is a larger gear 25, which meshes with a pinion 26, fixed to the lower end of a sleeve 27, which loosely surrounds the winding-arbor 3 and which at its upper end carries a large gear 28. .The

gears

21 and 22 revolve loosely on this sleeve 27. The gear 28 is connected bysuitableintermediate gearing with the winding mechanism of the watch, and, as shown in the drawings, it is connected to the ratchet-wheel 11 by two

intermediate gears

29 and 30, suitably journaled on the plate 2.

The mechanismdescribed constitutes the entire train of gearing for operating the indil wind up the mainspring.

' stationary pinion 26.

cator 15, and it will be observed that this train of gearing is positive throughout and that no part thereof is yielding, nor is any part of said gearing ever disconnected in the operation of lthe watch.

The operation is as follows: We will assume that the watch has run down and that it is to be wound up. In this condition the indicator- 'hand 15 will be pointing toward the words Wind up on the small dial 14. In winding the watch the going-barrel 4 becomes the relatively stationary part, while the winding-arbor 3 is rotated by the ratchet-wheel 11 to The ratchet-wheel through the

intermediate gears

29 and 30 imparts a rotary movement to the gear 28,which is secured to the sleeve 27, carrying the pinion 26. The latter therefore will be rotated with the winding-arbor, but at a different rate of speed, depending upon the relative number of teeth. in the

gears

11, 28, 29, and 30, and either in the same or in the opposite direction as said arbor. The gear 26 rotates

planetary gears

25 and 23, and the latter rotate

gears

22 and 21, which are loosely journaled around the sleeve 27. The gear 2l being connected by idler 19 with the gear 18 on the indicator-arbor imparts movement to the latter and turns the hand back to zero position. The size and number of the various gears and pinions are so arranged and proportioned that the indicatorfhand will reach the zero-point on the dial 14 when the mainspring is fully wound up. When the watch is running, the winding-arbor 3 becomes the relatively stationary part, while the going-barrel becomes the rotary part. As a consequence the pinion 26 becomes stationary, because it is connected to the winding-arbor through the sleeve 27

gears

28, 29, and 30, and ratchetwheel 11. The rotation of the going-barrel will carry the stud 24, with the

planetary gears

23 and 25, in an orbital path around the As the gear 25 meshes with the gear 26, it is given a slow rotary movement while traveling in its orbital path, and this movement through the connected pinion 23 is imparted to the

gears

22 and 21, thus giving them a slow rotary movement about the sleeve 27 and through the idler 19 and gear 18 turning the indicator-handslowly in the opposite direction from that given thereto when the watch is being wound. As a consequence the indicator-hand 15 will be moved slowly over the dial 14 from 0 to lOO IIO

24, and if the watch is not then wound up v it will move over the words Wind up, when it will indicate to the observer that the watch must be wound. By means of this indicator therefore it is possible at all times to determine to what extent the mainspring is still wound up and at what time the timepiece must again be wound. Inasmuch as the train of gearing is never disconnected and as it does not embody any yielding or slip element, the

action of the indicator' is always positive and accurate. The

gears

29 and 30 between the winding mechanism and the pinion 26 will be given such relative sizes that the indicatorhand in winding will always be brought back to Zero, thus traveling through exactly the same dist-ance that it does while the watch is running. By this intermediate gearing the evil eflect which results from the travel of the planetary gears around with the barrel is overcome.

Instead of using a going-barrel such as illustrated, in which the entire barrel rotates during the running of the watch, my invention can be applied equally as well to what is known as a safety-barrel, wherein the barrel itself does not rotate, but only the head thereof, to which head the inner end of the mainspring is connected. l intend, therefore, by the term going-barrel as used in my claims to include not only the going-barrel illustrated, but also a safety-barrel.

My invention may be applied to any springdriven mechanism as well as to watches and clocks.

That I claim is- 1. In a watch or the like, the combination with the mainspring, and a barrel and arbor connected to the opposite ends thereof, of an indicator non-concentric with the barrel and arranged to show the condition of the mainspring, and a single train of non-yielding continuously -connected gearing connecting the barrel and arbor with the indicator, whereby the rotation of the barrel moves the indicator away from Zero and the rotation or' the arbor sets the indicator at zero.

2. In a watch or the like, the combination with the mainspring, and a barrel and arbor connected to the opposite ends thereof', of an indicator non-concentric with the barrel and arranged to show the condition of the mainspring, and a single train of non-yielding continuously connected gearing connecting the barrel and arbor with the indicator, whereby the rotation of the barrel moves the indicator in one direction and the rotation of the arbor moves the same in the opposite direction.

3. In a watch or the like, the combination with the mainspring, and a barrel and arbor connected to the opposite ends thereof, of an indicator' to show the condition of the mainspring, and a single train of non-yielding continuously-connected gearing connecting the barrel and arbor with the indicator in one direction and when the arbor is rotated to move the indicator through the same distance in the opposite direction.

4. In a watch or the like, the combination with the mainspring, and a going-barrel and winding-arbor connected to the opposite ends thereof, of an indicator to show the condition of the mainspring, a pinion geared to the winding-arbor to rotate therewith and at a dierent rate or' speed, a planetary gear meshing with said pinion and mounted on the going-barrel, and gearing' connecting the planetary gear with the indicator, whereby the rotation or' the barrel moves the indicator in one direction and the rotation of the winding-arbor moves the same in the opposite direction.

5. In a watch or the like, the combination with the mainspring, and a going-barrel and winding-arbor connected to the opposite ends thereof, of an indicator to show the condition of the mainspring, a wheel mounted loosely around the winding-arbor, gearing intermediate the same and said arbor to rotate the same with said arbor, a pinion, a planetary gear engaging said pinion, said pinion and planetary gear being' carried, the one thereof by the barrel and the other thereof by the loose gear on the arbor, and gearing connecting said planetary gear with the indicator,

6. In a watch, the combination with the mainspring, and a going-barrel and windingarbor connected to the opposite ends thereof, of an indicator to show the condition or' the mainspring, a pinion loosely journaled around the winding-arbor, gearing connecting the same with the winding-arbor to rotate therewith but at a different speed, a gear meshing with said pinion and mounted on the goingbarrel, and gearing connecting said last-named gear with the indicator whereby the rotation of the barrel moves the indicator in one direction and the rotation of the winding-arbor moves the same in the opposite-direction.

7. In a watch or the like, the combination with the mainspring, and a going-barrel and winding-arbor connected to the opposite ends thereof, of an indicator to show the condition of the mainspring, a pinion concentric with the going-barrel, gearing connecting the same with the windingarbor, a planetary gear mounted on the barrel and engaging said pinion, and gearing connecting said planetary gear with the indicator.

8. In a watch or the like, the combination with the mainspring, and a going-barrel and winding-arbor connected to the opposite ends thereof, ot' an indicator to show the condition of the mainspring, planetary gearing comprising a pinion mounted loosely on the winding-arbor, and an intermeshing gear mounted on the going-barrel and meshing with said pinion to connect the winding-arbor and the going-barrel with the indicator, and gearing connecting said pinion with the winding-arbor to rotate therewith but at a different speed.

9. In a watch or the like, the combination with the mainspring, and a going-barrel and winding-arbor connected to the opposite ends thereof, of an indicator showing the condition of the mainspring, a pinion driven from the winding-arbor but at a different speed, a planetary gear carried by the going-barrel and engaging said pinion, a gear mounted loosely on IOO IIO

a gear loosely mounted on the sleeve, planetiary gears mounted on the going-barrel and connecting said pinion and said loose gear, and gearing connecting said loose gear with I5 the indicator.

In testimonyr whereof I, the said JOSEPH MAZER, have hereunto set my hand.

JOSEPH MAZER. Witnesses:

P. D. CHASTAIN,

ALBERT W. JONES.