US615719A - Dial-train for watches or other purposes - Google Patents

Description

E. KRAHENBUHL.

Patented Dec. 13, I898.

DIAL TRAIN FOB WATCHES OR OTHER PURPOSES.

(Applicati n filed Oct. 21, 1895.)

3 Sheets-Sheet I.

Patented Dec. l3, I898.

E. KRAHENBUHL. DIAL TRAIN FOB WATCHES OR OTHER PURPOSES.

(Application filed Oct. 21, 1895.)

3 Sheets-Sheet 2.

/ (No' Model.)

No. 6|5,7l9. Patented Dec. l3, I898. E. KRAHE'NBUHL. DIAL TRAIN FOR WATCHES OR OTHER PURPOSES.

(Application filed Oct. 21, 1895.) (N o M o d e I 3 Sheets-Sheet 3.

UNITED STATES PATENT OFFICE.

ERNEST KRAHENBUIIL, OF SAN RAFAEL, CALIFORNIA.

DIAL-TRAIN FOR WATCHES OR OTHER PURPOSES.

SPECIFICATION forming part of Letters Patent No. 615,719, dated December 13, 1898. Application filed October 21,1895. Serial No. 566,393. (No model.)

uring and indicating time, quantities, distances, 850., but is particularly adapted for use in connection with some constant source of power and motion, such as a clock or watch movement. I have devised a' convenient,

' simple, and continuously-registering system of indicating-disks,together with novel means for connecting them together and to the source of motion, so as to secure this continuous registry. This part of myinvention, relating to the arrangement of the disks and mechanism for transmitting the motion, is adapted to all kinds of indicating apparatus whatever the primary source of motion or the thing to be indicated may be; but myinvention has special reference also to timemovements, and it is in connection with such a movement that I have particularly described and shown it in the present application.

There is a class of timepieces known in the art in which the ordinary means of indicating time by hands moving around a dial are replaced by disks carrying numerals, which are so arranged and moved as to be displayed at visual openings in the front of the timepiece, so that on looking at the timepiece one sees only the actual time expressed in figures. Such timepieces are desirable as providing a more natural, direct, and convenient way of expressing the time than the ordinary way established by the custom of ,centuries, and they would come into common use were it not that, so far as I am aware, it has always been necessary to construct a movement especially adapted to the new system of indicating-in other words, to provide a special timepiece. Such timepieces,watches especially, do not meet with general favor in comparison with approved standard movements of well-known accuracy; but if to such a standard movement can be added, without change in the movement, the new system of indicating referred to no objection can be urged against the combination.

The object of my invention as applied to a watch is to provide a separate disk indicator which can be applied to any modern watch without change or reconstruction in the latter further than the removal of the dial and hands.

My invention will be fully hereinafter described in detail and is shown in the accompanying drawings, in connection with which this specification should be read.

In the drawings, Figure 1 is an elevation of the watch-dial. Fig. 2 is a plan of the main plate and all the indicating mechanism carried thereby. Fig. 3 is a View of an ordinary watch with its dial removed ready to receive the plate shown in Fig. 2 and provided with a connection for transmitting motion to the indicating-disks. Fig. 4 is a bottom view of the plate of Fig. 2. Fig. 5 is a cross-section of the whole watch-case and movement. Fig. 6 is an enlarged cross-sea tion of the whole indicating device attached to a Watch, showing the mechanism of both Figs. 2 and 4. Fig. 7 is an enlarged plan view of the units ring or disk and its attachments, showing also the lever-setting. Fig. 8 is a section to illustrate the guiding of the units ring or disk. Fig. 9 illustrates a compromise permitting the original seconds-hand of the watch to be utilized on the face-plate of the attachment, the tens-disk pivoting on a raised boss. Fig. 10 is a cross-section showing the same device. Figs. 11 and 13 are details of one part of the jointed lever-arm which operates the units-disk. Fig. 12 is a detail view of the pivoted tooth and pin which actuate said jointed lever-arm. Fig. 14 shows the connection between the ordinary watch-movement and my time-registering mechanism. Fig. 15 is a spring for retracting the lever which operates the units-disk. Fig. 16 is a view similar to Fig. 2, enlarged. Fig. 17 is a diagram of the action of pin 32 on wheel E.

A represents any ordinary watch provided with any suitablemovement.

derstood that no change or reconstruction of It must be un-' the watch-movement is intended or required to fit it to receive my time-register. My invention, therefore, is not a new watch, but a new time-registering mechanism applied to and operated by any modern watch-movement without change in the latter.

Fig. 3 of the drawings illustrates a watch with its dial and hands removed and ready to have my mechanism applied instead.

All the time-registerin g devices which form parts of my invention are carried by a plate B, of which a top plan view is shown in Fig. 2 and a bottom plan view in Fig. 4, the top carrying the separate registering-disks for hours and for tens and for unit-s of minutes, while the bottom contains the attachments for connecting the plate to the watch and for transmitting the motion of the watch-movement to the disks just referred to. In the bottom of the plate are set pins 1, which enter holes 2 in the movement-plate A, and thus fit the plate B snugly to the watch-movement, as will be better understood if weimagine Fig. 2 superimposed upon Fig. Upon the cannon-pinion, which is loosely mounted upon the arbor 3 of the center pinion 4, is secured a plate 5, Figs. 6 and 14, which carries projecting pins 6. These pins 6 engage with slots '7 in a ratchet-wheel 8, recessed into the bottom of plate B, Fig. 4, pivoting on a hollow raised boss and held in place by guide-strips 9. This boss is hollow, so as to allow room for the projecting parts of the arbor 3 and clamps 50. This ratchet-wheel may have the bearingpoints of each of its sixty teeth tipped with iridium or other hard wear-resisting substance. It derives a constant rotation from the watch-movement and through proper mechanical connections communicates the appropriate time-movements to the indicatingdisks. These indicating-disks are three in number andrespectively indicate hours, tens of minutes, and units of minutes.

The units disk or ring 0 surrounds and is guided bya circular stationary plate 0, secured by screws to the plate B and having in its center the visual opening through which the hours are indicated, Figs. 7, 8, and 9, and on its periphery, facing the tens-disk, a space is cut to correspond to the visual apertures provided for the combination of the units and tens numerals. As shown, the disks are overlapped, showing the numerals through aperture of units ring or disk,which permits the largest-size numerals that the circumference of the plate will allow centrally situated and on the same plane. The guide-plate has a bearing-rim 10, on which the disk 0 rests. Threaded bosses 11 are formed with this disk, upon which are journaled loose rollers 12, held in place by screws. Four of such rollers are shown in the drawings, and they insure an easy and steady revolution of the disk 0 upon and around the plate 0. The upper surface of disk (J bears the numerals from O to 9, inclusive.

Au intermittent motion at intervals of one minute is imparted to the disk 0 from the constantly-moving ratchet-wheel 8. A slot 13 is made in the main plate adjacent to the ratchet, Fig. 4. Close to this slot, but on the top of the plate, is set a pin 14, Figs 2, 4, and (3. On this pin is mounted a loose sleeve 15, Figs. 6, 12, and 13, having a tooth 16, which projects through the slot and engages with the ratchet-wheel. The sleeve 15 also has a projecting arm 15 carrying a pin 17, which engages with the split lever 19, journaled on the sleeve, permitting the tooth 16 to escape as a click and to slip or disengage from the ratchet when said ratchet is revolved backward, as may occur when setting the disks by the stem of the watch-movement. To the end of this lever is pivoted at Y a split arm 20, Fig. 2, into which projects a pin 21 from the lever 19. The free-ended portion of the arm 20 is thus a leaf-spring. The two arms 19 and 20 thus form a compound flexible lever capable of bending where they are jointed, and the extreme end of the arm 20 carries a tooth 22. Asmall bridge 18, Fig. 2, acts as a guide and holds the jointed arms in proper horizontal position. The head of arm 20 projects sufficiently under the unitsdisk, so as to be continually guided between it and the plate B. The periphery of the disk 0 is ratchet-toothed throughout its extent and is provided with spaces 23. There are ten of such spaces, corresponding to the numerals on the disk. Referring to Fig. 2, which shows that the numeral 9 has just been brought into sight, we see that the two levers 19 and 20 are bent to their full extentthat is, they are substantially atright angles to each other, which position they assume after each movement of the disk 0. It will be also seen that a hook 24, Fig. 11, on the lever 19 bears on the square face of one of the spaces 23 and holds the disk from movement forward. Should the tooth 22 fail to push the disk to its forward position accurately or fully, the inclined end of the hook 24 will insure accuracy in the position of the disk, for as the tooth moves inwardly toward the center of the disk under the action of the spring itsinclined edge, bearing on the edge of the space 23, will turn the disk and accurately position the same. The ratchet-wheel 8, constantly moving in the direction of the arrow 00, Figs. 2 and 4, now acts with the radial part of its teeth on the tooth 16, which can be seen in Fig. 2, and the motion is transmitted to the levers, which commence to extend themselves-that is, the pin 17 moves toward the center of the casing, together with the lever 19 and the pivoted point Y, Fig. 2, of the levers. This carries the free end with its tooth 22 moving over the ratchet-teeth in the disk 0, which remains stationary. A spring holding-pawl 25, having a recessed end or extremity, falls into and catches the inclined side of space 23 or, in case of accidental disarrangement, catches one of the ratchetteeth in the units-disk and prevents the disk from being moved backward by the lever. A

projecting nose 125 is provided at a suitable 0 backward, while its end part checks its.

position. As soon as the levers 19 and 20 commence to extend by the inward movement of the joint at Y the hook 24 releases the disk because the hook moves with the lever 19. The disk has no tendency at this time to move forward on account of the backward push of the levers. While this extension of the levers is taking place, the pin 21 is developing tension in the free part of split arm 20 on account of the pivotal separating movement of arm 20 at the jointYin relation to the lever 19. This free part has now become a spring which has a tendency to bend the two arms back into the position of Fig. 2, and thereby keeps the tooth 22 in contact with the units-disk. The levers 19 and 20 cannot be retracted until the ratchet-wheel 8 releases the tooth 16 just after thetooth 22 has snapped over the last of a group of teeth 123 and into the space 23, adjoining it. At this time the lever-arms are at the full extent of their separating movement and are under the strongest tension of the spring part of the lever 20. The tooth 22 now pulls the disk C forward until the succeeding numeral shows, when the hook 24 and holding-pawl 25 keep it stationary, this movement of the disk being due to the movement of the lever 20 toward the lever 19. The curved edge of hook 24 strikes the last tooth of the group 123 and continues the impulse given by the lever-arins, thereby assisting and securing the action of holding-pawl 25 and insuring the proper position of the units-diskduringthesucceedingminute. The arm of stop or hook 24 is preferably made somewhat elastic, but sufficiently strong to safely resist the automatic action of the lever impulse or that occasioned by an accidental jerk, but elastic enough to give way for the passage of the disk when an intentional extra pressure is applied to it, as in case of setting the disk to time by the aid of settingarm 52, thereby permitting me to shift the disk at any time independently of the relative position of the stop 24 toward the disk. This elasticity also softens the impact of the stop 24 against the disk and aids the disk to regain its correct position (if accidentally disturbed) by gliding against the outer or inclined face of the hook under the impulse acquired from the lever until caught by the stop 24. A coil-spring 26, having a recessed end, Fig. 15, bears upon a projection 126 on the lever 19 and is put under tension by the extension of the levers and when the latter are released gives the effective movement to such levers. This spring maintains the lever 19 on the sleeve 15. In movements where there is powerful motive power this spring 26 could be dispensed with or discarded by having a sufficiently powerful split spring to lever 20, which by its angular tension may suffice to operate the disks.

The disk D for indicating tens of minutes is pivoted in the main plate and in a small bridge 27. This disk bears the numerals from 0 to 5, inclusive, and is so located that its appropriate numerals are visible at an opening in connection with those upon the units-disk and through the inside aperture of ring or disk 0 and cut in plate 0. The arrangement is clearly shown in Fig. 2. The face-plate B, through which all the numerals show, is secured in'place in the same way as plate B. The tens-disk is operated once for each complete revolution of the units-disk by a tooth 28, projecting from the ratchet edge of the latter and which engages successively with pins 29, spaced around the arbor or pivot of the tens-disk. A spring engages with these pins and holds the disk steady except when it is being operated. Fig. 2 also shows in connection with the tens-disk a setting-lever 31, which. operates against the pins 29 and is accessible through a slot in the edge of the main plate. In this connection it should be stated that all the disks can be set in the usual way through the setting-train of the watch, if desired, in which case the cannon-pinion is necessary and is secured on plate 5. If intended to set entirely by the hand devices provided, the clamp 50, hereinafter referred to, may be made so as to carry the pin 6.

By reference to Figs. 6 and 14 it will be seen that the plate 5, which transmits the motion of the center-wheel staff to the ratchet- Wheel 8, is provided with a forked clamp 50. The plate 5, having the projecting pins 6, is affixed upon the cannon-pinion, which is loose upon the staff; but the clamp is secured frictionally to the staff by a screw 51, while one of the pins 6 projects through its forked end. In setting by the ordinary train, Fig. 3, the cannon-pinion and the plate 5 and clamp are turned independently of the staif, care being taken that the frictional hold of the clamp is not enough to endanger the teeth of any of the watch-wheels in setting.

In case of key-winding watches or clocks, where the center arbor is held frictionally in the center pinion, the plate 5 should be attached firmly to said arbor.

Instead of the pendent setting for the unitsdisk I may use a special lever-settin g. (Shown in Fig. 7.) The setting arm or lever 52 is pivoted to a sleeve 53, which slides upon a curved spring-guide 54 adjacent to the units-disk and is held by a spring 55. The spring-guide 54 is pivoted at one end and free, but guided at the other end. The lever 52 projects through a slot in the plate B. It can be turned and then pressed inwardly, so as to ITO engage any of the teeth in the edge of the units-disk and can then be used to push such disk positively in setting.

The hour-disk E underlies the other disks described and is pivoted directly upon the main plate B and in the circular plate 0. It carries the numerals from 1 to 12, or from 1 to 24, if preferred, is operated once at each revolution of the tens-disk D, and displays its numerals at a separate visual opening, as shown. The edge of the disk E is toothed or serrated, and with it engages once in every hour a small pin 32, Fig. 2, of the under face of the tens-disk. The serrations of the hour-disk have their inner edges corresponding to the arc of the circle described by the pin 32, following the direction of rotation of the tens-disk, while the outer edge of each serration forms a straight line passing from the contact-point of the pin 32 at the intersection of the line of centers with a point of the periphery as near the entrance of the serration as the mesh with pin 32 will permit without binding or undue friction, thereby forming a baclnvardly-inclined or receding notch,which lengthens the contact and increases the arc of circle traveled by the hour-disk to the same extent as the distance existing on the periphery of disk between the point of the tooth or notch and the point crossed by a radial line passing through the point of contact on the line of centers. The pin 32 is so located that when at rest it does not reach the periphery of the hour-disk, so as to allow this disk perfect independence. Fig. 2 is so broken away as to show the relation between this pin and the hour disk clearly. The disk E is held stationary when not being operated by a spring 33, which engages with pins 34 on the disk and spaced around its central arbor. A pivoted settinglever 35 is shown for adjusting the hour-disk by hand by means of these pins. The end of said spring rests freely in a conical inverted hole in the side of the plate, which conical aperture serves as a guide and allows full liberty of action to the spring. At the time shown in the drawings (12.59 oclock) all the disks are in such position that the next complete advance and retraction of the leverarms 19 and 20 will result in the rearrangement of all three disks so as to indicate one oclock. (See Fig. 2.)

In connection with the time indicating disks I have devised a novel means of operating the seconds-hand and indicating the time by seconds at a visual opening in the same covering-plate A through which hours and minutes are shown. A semicircular slot 36 is made in this plate, Fig. 1, around which is placed a seconds-scale, as shown. Below the slot 36 is a bridge 137, forming a background for the seconds-hand, Fig. 6, the face of which may be divided into quarter-minutes by making it of contrasted colors, as indicated by the shading in the figure last referred to. The seconds-hand 37 is adjusted on the extension of upper pivot or pinion 38 so that the hand will show just beneath and between the slot and the background-bridge 137. The pinion 38 is pivoted in the main plate and in the plate 0, and its stem is steadied by a spring 00, as shown. (See Fig. 2.) On the lever-arm 19, which operates the units-disk, is a projecting arc-shaped rack 40, which engages constantly with the pinion 38, Fig. 2. WVhilc the lever- arms 19 and 20 are extending, as before described, for making a new engagement between the tooth 22 and the ring 0, which is now stationary, the seconds-hand pinion is being revolved by the rack 40 and the hand moves around the seconds-scale. \Vhen the lever-arms spring back to the rightangular position of Fig. 2, moving the unitsdisk one minute, the seconds-hand jumps back to zero and then recommences its forward or seconds-indicating movement. If preferred, however, the original seconds-hand of the watch can be used, as shown in Fig. 10. In this case the tens-disk has a central hole, by which it is pivoted upon a boss 41, where it is held by a small plate 42. The secondshand socket passes through this boss and plate, while the hand travels around a continuous circular dial in the usual way. I mention this construction particularly to show the adaptability of my device to ordinary watches. Should, however, the secondshand of Fig. 1 be used, it would only be necessary to cut oif the original seconds-hand pivot to prevent contact with the plate B.

Fig. 4 illustrates the manner of attaching a bell-striker in case it should be desired to indicate the minutes by sound. A spring 43 acts as a gong and is secured to the plate B on its lower side. A curved slot 44 is made in the plate, through which extends a projection 45 from the lever 19,which strikes the spring 43 at each jump of the units-disk and produces the sound. A small pivoted sounddeadener 46 is adapted to bear upon the spring when desired. In the case of clocks or where sufficient room is afforded by the construction I may use a gong or other sounding device or substance within or outside of the casing and attach a striker to the projection 45. The sound-deadening device (here shown as being worked by hand) may be provided with suitable connections by which it can be released or brought into action at predetermined times, or, in other words, it can be made automatic in its action.

It will now be clear that all the time-indicating mechanism is held and carried by the main supporting-plate B and that such plate and its attached mechanism form a separate and independent device complete in itself and can be manufactured separately as a complete article, which can be applied to any standard watch -1novement without reconstruction or modification of the latter. The advantage of being able to combine a standard movement with the improved time-indieating system will be readily apparent and need not be enlarged upon in this place.

By connecting, through an electric current, pneumatic, or other power with suitable connections, a number of such separate time disk indicators to a main clock they may be synchronized at each minute or be used simply to transmit to separate sounding devices the intermittent connection and signal-for instance, by utilizing projection 45 of lever 19 as a circuit-closer, causing the tilting of the lever for each jump of the units-disk. In such a case the ratchet may be dispensed with. The duration of the connection may be made sufficiently long in case some mechanical resistance is to be overcome.

The connecting-arbor of the timepiece may be prolonged on the side opposite the existing dial and may have the disk time-indicator attached to it, so that on the same timepiece both styles of time-indicators can be used.

It is evident that additional disks may be introduced, operated by those described, for indicating other divisions of time or whatever particular circumstances require.

In the case of clocks which it is desirable Y to illuminate at night the artificial light can be located behind the face-plate, so as to show the numerals in a very effective manner. It will also be seen that since the disk indicating mechanism is a complete device in itself it might be exposed to jar, weather, &c., as in the case of street-clocks, while the timemovement could be kept in a protected situation and from there connected to the indicating mechanism.

lVhat I claim is 1. In combination with a driving mechanism, such as a timepiece-movement and movement-plate, an attachable and detachable stationary plate carrying connected indicatingdisks, adapted to be substituted as a whole or complete device for the usual dial; said stationary plate having such means for locating and attaching it to the movement-plate, as were or are usually provided for the said dial,

and having also means for deriving from said driving mechanism an intermittent movement of said indicating-disks.

2. As a new article of manufacture, an indicator comprising a stationary plate carrying intermittingly movable visual indicatingdisks connected so as to operate in a prearranged sequence, and also carrying a device connected to said disks so as to operate them intermittingly said device having also means for engagement with a driving mechanism; whereby such indicator as a complete article, can be attached in and removed from connection with such driving mechanism, and whereby consequently, complete disk indication can be substituted for dial indication without change or'reconstruction of the driving mechanism.

3. As a new article of manufacture, an indicator comprising a stationary plate carrying intermittingly-movable indicating-disks, a face-plate having visual openings for displaying the indications in proper sequence, and a device for transmitting motion to said disks,

and carried by said stationary plate; such complete article being adapted for separate attachment to a driving mechanism, such as a timepiece-movement and movement-plate, whereby said transmitting device is engaged by such driving mechanism.

4. In a watch, the combination with the watch-case and the time-movement inclosed thereby, of a plate carrying on one side connected time-indicating disks; a ratchet-wheel on the other side of said plate, a pivoted lever for moving one of said disks and having a tooth projecting through said plate into the path of said ratchet-wheel; and a plate on an arbor of the time-movement, connected to said ratchet-wheel,substantially as described.

5. In a watch, the combination with an arbor forming part of the time-movement of a plate having projecting pins secured to and revolving with said arbor, a plate B having a ratchet-Wheel with which said pins engage, time-indicating disks j ournaled in said plate, and a connection between the said ratchetwheel and one of said disks for imparting an intermittent motion to said disks, substantially as described.

6. In a time-indicating apparatus and in combination, a main plate, a series of intermittingly-movable disks for indicating divisions of time, mounted upon said plate, a continuously-movable ratchet-wheel operated by the time-movement, a jointed lever, connected to said ratchet-wheel and having a tooth engaging with one of said disks, and a spring for retracting said lever at intervals and thereby moving said disk substantially as de- IIO ment having the central arbor, a removable plate carrying on one side a series of indication-disks, a lever on the face of said plate for engaging one of the indicating-disks, a minute ratchet-wheel on the'under side of the plate having an opening, and a projection on the lever extending through said opening to be engaged by the teeth of the ratchet-wheel, substantially as described.

8. In a watch having disk time-indication, an annularunits-of-minutes disk, surrounding a stationary bearing-plate having a visual opening and a recessed edge; an underlapping tens-of-minutes disk, an underlapping hour-disk, and mechanism for intermittingly driving the said disks to indicate in sequence; saiddisks being so arranged that the hours are indicated at the visual opening in the bearing-plate and the tens at the recess in said bearing-plate, and the units on the face of the annular disk, substantially as described.

9. The combination with the main plate 13, and with the stationary bearing-plate C havupon said annular disk, the numbers of the tens-disks showing through the recess between the stationary bearing-plate O and the annular disk, substantially as described.

10. In a watch, the combination with the time-movement, of a plate loose on an arbor of said movement and having projecting pins, a clamp frictionally held on said arbor and engaging one of said pins, a ratchet-wheel engaged and driven by said pins, indicatingdisks, connections for directly operating such disks, and means for setting and adjusting said disks independently of the time-movement, substantially as described.

11. In a watch and in combination, units, tens and hour disks, so connected as to operate in sequence butindependently movable, a separate setting-lever for moving each disk, and a frictional connection between one of such disks and the time-movement of the watch for transmitting its motion to the disks, and for permitting the setting of such disk independently of the time-movement, substantially as described.

12. In a watch and in combination, the continuously-moving toothed wheel 8, the indieating-disk 0, having a recessed edge, the sleeve 15 having the tooth 16 and pins 17 the jointed lever 19 20 having the tooth 22, and a spring for retracting said lever, substantially as described.

13. In a watch, and in combination with a constant time-movement, a disk having recesses, a lever operated by connection with the time-movement for moving said disk intermittingly, and a stop or hook on the inactive end of said lever adapted to engage with said disk at the end of each impulse given by said lever, and prevent any further movement, and also adapted to be pushed out of the way when intentional extra power is applied substantially as described.

14. In a watch and in combination with a constant time-movement, a loosely-pivoted disk, a lever automatically operated by connection with the time-movement for giving forward impulses intermittingly to said disk, a stop on said lever for preventing further motion of the disk, and a spring-pawl having double action, constantly engaging the teeth of the disk and preventing its moving backward irrespectively of the said stop substantially as described.

15. In combination, the toothed units-disk, a jointed lever consisting of two parts pivoted together with a spring controlling the relative position of the two parts of said lever, means for operating the jointed lever to move the disk step by step, the main part of said jointed lever having a tooth to limit the movement of the disk, and a spring-pawl 25 in engagement with the disk to prevent backward movement thereof said lever acting both the direct impelling device and as the detent, substantially as described.

16. In a watch, the combination with the continuously-driven ratchet-wheel S, the pivoted sleeve 15 having an escaping tooth engaging said ratchetwheel, the lever 19 split to form a spring-arm, and a pin on the sleeve engaging such split lever and transmitting motion from said sleeve to said lever, substantially as described.

17. In combination with the toothed unitsdisk having a projecting tooth 28 for impelling the tens-disk, the holding spring-pawl 25 having the nose 125 located at a distance from the end of the pawl, such nose forming an auxiliary holding device which becomes effective when the end of the pawl is disengaged by the passage of said tooth 28, substantially as described.

18. In combination with the toothed unitsdisk, a setting device consisting of a springrod, a slide mounted thereon and a settinglever pivoted to said slide, constructed and arranged so that the rod will yield to permit the lever to engage with said disk, the slide and lever being movable on said rod in the act of setting, substantially as described.

19. In a watch, the combination with atimeindicating disk and a lever for operating the same intermittently, of a seconds-hand and a connection between said lever and secondshand, substantially as described.

20. In a watch, a seconds-hand movable along a scale having starting and finishing points, means for moving said hand along said scale during a minute, and automatic means for causing said hand to jump to the starting-point at the expiration of each minute, substantially as described.

21. In a watch, the combination with the traveling lever and escapement mechanism which operate one of the time-indicating disks intermittently, of a seconds-hand operated during the minute by the ineiiective travel of the said lever, and returned to the startingpoint by the effective movement of said lever substantially as described.

22. In combination with the alternately traveling and jumping lever for operating one of the time-disks, a rack attached to said lever, a pivoted seconds-hand having a pinion with which said rack engages, and a scale for indicating the movement of said seconds-hand substantially as described.

23. In a watch having time-indicatin g disks and an intermittingly-jumping lever to operate them, a sounder, and a striker on said lever, substantially as and for the purpose set forth.

2%. In combination with the plate 13, having a slot, the jumping lever 19 moving on one side of said plate and having the projection 45 extending through said slot, and a sounder on the opposite side of said plate adapted to-be struck by said projection, substantially as described.

Q5. inedmbi nabiofi with the plate B, the In testimony whereof ihave' affixed my sigj-ointed jumpinglever 19, the indicating-disk nature, in presence of two witnesses, this 11th to be operated thereby, escape'riie'n't mechanday of October, 1895;

ism for operating the lever, said lever having ERNEST KRAI-IENBUHL. 5 a striker, a sounder adapted to he struck Witnesses: 7

thereby, anda movable sounddeadener, snb- L. WV. SEELY,

stantially as describech GEO. T. KNOX.

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