US581504A

US581504A - Alakm watch

Info

Publication number: US581504A
Authority: US
Publication date: 1897-04-27
Anticipated expiration: 1914-04-27

Description

(No Model.) 3 Sheets8heet 1.

A. BANNATYNE. STEM WINDING ALARM WATCH.

No. 581,504. Patented Apr. 27, 1897.

Tnz "cams wz'rrns co.. PHOTO-LIYHO., WASHINOYON. D c

(No Model.) 3 Sheets-Sheet 2.

A. BANNATYNE. STEM WINDING ALARM WATCH.

No. 581,504. Patented Apr. 27, 1897.

ms pgvzns c0. PunTo-umm WASHKNETON, u. c.

3 M e h s q u h S 3 H O T .A W m ML A G mm Bm I w M E T S m d 0 M 0 w No. 581,504. Patented Apr. 27, 1897.

UNITED STATES PATENT CEErcE.

ARCHIBALD BANNATYNE, OF VATERBURY, CONNECTICUT, ASSIGNOR TO THE WATERBURY CLOCK COMPANY, OF SAME PLACE.

STENlwv HNfEiNG ALARM-MATCH.

S?ECIFICATION forming part of Letters Patent No. 581 ,504, dated April 27, 1897'.

Application filed March 5,1896 Serial NO. 5811894- (N0 model.)

To (ZZZ whom it may concern;

Be it known that I, ARCHIBALD BANNATYNE, of \Vaterbury, in the county of New Haven and State of Connecticut, have invented a new Improvem ent in Stemin din gan d Stem- Setting Alarmatches; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification.

Figure 1 is a view of a front elevation of a watch constructed in accordance with my invention. Fig. 2 is an enlarged view of the watchcase in section and showing the dial removed to exhibit the watch-movement in front elevation. Fig. 8 is a detached plan view of the watch-movement. Fig. 5 is a view onan inside elevation of the dial. Fig. 5 is a view of the dial in cross-section on the line a l) of Fig. 4-. Fig. (3 is a detached View of the front movement-plate, showing the alarm-watch in its relation to the alarm-set spring and the hammer. Fig. '7 is a reverse view of the watch-movement, showing the back movement-plate and the alarm-train. Fig. 8 is a detached view, in front elevation, of the oscillating lever. Fig. 9 is a detached perspective view of the hammer,together with the hammer-star and the alarm-verge. Fig. 10 is a detached View showing the main wind in g-wheel, the stop-wheel, and the stop-wheel spring in the positions which they have when the spring is coacting with the bevel of the stop-finger of the stop-wheel; Fig. 1], a view in inside elevation of the front movementplate, together with some of the parts associated therewith; Fig. 12, a similar broken and less comprehensive view of the plate, showing the sliding switch in its closed or operative position.

Myinvention relates to an improvement in alarm-watches, the object being to produce a comparatively simple, compact, conveniently-operated, reliable, and durable alarmwatch of the sten'i-winding and stem-setting type.

\Vith these ends in view my invention consists in a stem-winding and stem-setting alarm-watch having certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In carrying out my invention as herein shown I provide the watch with a crown A, which is secured to the outer end of a rotatable stem A, furnished at its inner end with a rigidly-attached pinion A the said stem be ing mounted in the watch-pendant A which is furnished with a pendant-ring A and permanently secured to the central band A of the watehcase, which also comprises a bezel A,

containing a glass, and a back or cover, which is not shown. W hen the watch-movementis located properly within the case, the said pinion A meshes into an intermediate winding-wheel B, located between the front and back movement-plates B and B and rigidly secured to the inner end of a short stud H, the projecting outer end of which has rigidly secured to it an intermediate pinion B, which bears against the outer face of the front movement-plate B. The said intermediate pinion 13" is in constant mesh with an oscillating pinion C, located in the short arm C of an oscillating lever C which is hung upon the stud B aforesaid, being interposed be tween the inner face of the front movementplate l5 and the intermediate winding-wheel l5, as clearly shown in Fig. o. The said oscillating pinion C meshes in one position into the outer intermediate setting-gear D, which is secured to the projecting outer end of a short shaft I), mounted in the front movementplate l3, and having the inner intermediate setting-gear D secured to its inner end, the said gear D meshing into the minute-wheel D, carrying the minute-pinion D, which in turn meshes into the hourwheel D, the same having a tubular shaft (1, which projects outwardly through the short tubular arbor "m of the alarm-cam M, as will be described later on. In the other position of the said oscillating pinion C the same meshes directlyinto the main winding-wheel E, carrying a stop-pin E and secured to the outer end of the main winding-arbor E the inner end whereof carries a ratchet-wheell1fl Fig. 7, the teeth of which are taken into by a spring-actuated pawl E carried by an annular gear-wheel E arranged concentrically with the said arbor and meshing into an. alarmpinion E, loosely mounted on a short stud E located in the back movement-plate B The said pinion E is rigidly connected with a large alarm-wheel E also centered on the stud E and meshing into the alarm-pinion E of the alarm escapement-wheel E the teeth of which are engaged by the alarmverge E, which is secured to a eollet E staked upon one end of the hammer-arbor E, which carries the hammer E, a detailed view of which is shown in Fig. 9. The said annular gear-wheel E alarm-pin E, alarmwheel E alarm-pinion E", and alarm escapement-wheel E constitute what I shall hereinafter term the alarm train, which is driven directly from the mainspring F, inclosed within the barrel F and having its inner end connected with the arbor E in the ordinary manner.

The oscillating lever C before mentioned is constructed with an outwardly-projccting stop-finger c, struck out of its arm 0 and adapted to enter a slot G, formed in the front movement-plate B. lVhen the lever is swung inward for meshing the oscillating pinion G into the outer intermediate setting-pinion D, the stop-finger c engages with the inner end wall of the slot and prevents the oscillating pinion C from being crowded into the said outer intermediate setting-wheel D so hard as to interfere with the actuation of the setting-train. In the outward movement of the oscillating lever the stop-finger c engages with the outer end wall of the slot G and merely prevents the lever from being thrown too far outward under the action of its spring 1". The said oscillating lever O is normally maintained by the said spring C in its winding position, that is to say, the position which it has when the oscillating pinion C is meshed into the winding-wheel E. The leveris swung inward on its fulcrum, which is the stud B, for disengaging the oscillating pinion 0 from the winding-wheel E and for engaging the said oscillating pinion with the outer intermediate settingwheel D by means of the beveled inwardly-projecting linger ll, Fig. 2, ofa sheet-metal slide Il,longitudinally bowed to conform to the inner curvature of the ring A of the watchcase, between which and the slide sufficient friction is developed to hold the slide against accidental displacement. This slide is supported and operated by a headed pin H passing outward through a slot H formed in the said ring, as shown in Fig. 2. \Vhen the slide is moved inward toward the pendant A", the oscillating-lever spring 0 swings the oscillating lever C outward and holds the oscillating pinion C in engagement with the main winding-wheelE, the cam-finger ll being at; this time virtually retired, but when the slide is moved outward and to the end of the slot away from the pendant the beveled outer edge of the finger ll engages with the transversely-bent end 0 of the arm 0* of the oscillating lever C and senses causes the same to swing inward, whereby the oscillating pinion is lifted into engagement with the outer intermediate settingpinion D.

The duration of the sounding of the alarm, and hence the amount of power which can be taken, so to speak, from the inainspring at one time for sounding the alarm, is fixed and regulated by means of a stop-wheel I, which may be said to be a modification of the socalled Geneva stop, extensively used in watches. This stop, as shown, is mounted to rotate upon a screw-stud I and comprises six teeth, including the teeth tand t", and abroad stopdinger Z having a beveled face Z which coacts, Fig. 10, with the stop-wheel spring E, the same being secured to the outer face of the front movement-plate B and having its free end bent to engage with any two of the teeth of the stop-wheel or the bevel of the stop-finger thereof and the tooth adjacent thereto. This wheel coacts with the stop-pin E, mounted, as aforesaid, in the main winding-wheel E.

The normal position of the stop-wheel l with reference to the stop-pin E is shown in Fig. 2 of the drawings, which shows the said stop-pin engaged with the periphery of the stop-linger 1 In winding the watch, supposing the stop-wheel. to be in its normal position, the main winding-wheel rotates from right to left, whereby the stop-pin E coacts with the stopwheel, so as to turn the same from left to right. During the first revolution of the winding-wheel from right to left the pin E engages with that end of the stopfinger I of the stop-wheel which is adjacent to the tooth t' of the wheel and moves the stop-wheel through the distance represented by one tooth thereof, the stop-wheel spring engaging with the two opposite teeth of the stop-wheel and holding it. Then during the second revolution of the windingwvheel the stop-pin thereof comes around again and engages with the tooth t' of the stop-wheel on the side of the tooth lying adjacent to the tooth t", and the stop-wheel is carried one point farther to the right and held by the stopspring. Now when the \vimling-wheel makes its third revolution from right to left the stoppin engages the tooth t" of the stop-wheel and the same is moved a distance represented by one teeth, but this last movement of the stopwheel brings the beveled face I of its stoptinger l into engagement with the stop-spring E Then when in the further rotation of the stop-wheel l the said pin clears the said teeth 2 altogether the spring operates on the said bevel to throw the step back into the position which it had before the pin engaged with it on the third revolution of the windingwheel. This action is repeated until the mainspring is fully wound, wherebythe stopwheel is always left in the same position.

An alarm switch or cut-off is located in the front movement-plate l3, and consists, as shown, of a small bent plate J and two studs IIO ter arbor L of the watch-movement.

J and J projecting forward through a segmental slot J formed in the plate, the stud J being made long enough for manual engagement and also for engagement with a retaining-spring J which holds the switch or cut-01f in either its active or retired positions, the length of the segmental slot J 3 determinin g the length of throw which the switch or cutoff can have. In its active position the switch is interposed between the segmental alarmbell K, secured by one end to and located within the ring of the watchcase, with which it is concentric, and the outer end of the hammer E and the switch not only prevents the hammer from striking the bell, but also it limits its outward movement to such an extent that the teeth of the ham mer-verge E are prerented from escaping from the teeth of the alarm cscapement-wheel E whereby the alarm is out off by the switch, not only because the same prevents the hammer from striking the bell, but also because the same restrains the action of the hammer so far that it ties up, so to speak, the escape of the alarm-train. The hammer, however, is normally restrained by the alarm-seti'nechanism, which, as shown, comprises a locking-pin L, arranged to engage with the shank of the hamm er and located in the outer end of the alarmset spring L, which is secured byits opposite end to the outer face of the front 1novement plate 13, the said spring having a central perforation for the passage through it of the cen- The said alarm-set spring L is constructed and arranged to exert a constant effort to spring away from the plate and withdraw the pin L from the path of the hammer. It is normally held inward, however, by means of a projection D", extending outward from the outer face of the hour-wheel D and coacting with a cam M, which is mounted so as to turn under "friction in the central opening of the dial M of the watch, the said cam being constructed with a short tubular arbor on, which projects outward through the dial and has attached to it an alarm-set hand M which is located close to the face of the dial and between the same and the hour-hand M and the minute-hand of the watch. The extreme outer end of the alarm-set hand is bent outward, as at on, Fig. at, to enable it to be engaged by the lingers and swept over the dial. It is also furnished, as shown, with a transversely-arranged arrow m to indicate which way it is to be turned.

hen the projection D of the hour-wheel D drops off the step M of the cam M, which it must do once in twelve hours, the hourwheel is allowed to move outwardly on the central arbor and the spring to recover and move outwardly for a sufficient distance to clear the locking-pin L from the hammer E, which is then released. W hen the hammer is so released, it will be immediately vibrated by the alarm-train, which is always under the influence of the mainspring, provided only that the alarm-switch is off. If, on the other hand, the alarm-switch is on, or, in other words, has been pushed into the blocking position, the hammer, when released by the alarm-set spring, will simply i'lyoutward and engage with the switch, which will stand between it and the bell, and also prevent the alarm-verge from releasing the alarm escapement-wheel. The alarm-set spring will always be let off once in twelve hours, of course, and the main function of the alarm-switch is to provide for blocking the hammer when so released and when it is desired that the alarm shall not be sounded.

The setting of the alarm maybe effected in either of two ways: One way is to open the face of the watch and engage the alarm-set hand by the fingers and turn it in the direction indicated by the arrow until it is brought to that point on the dial which indicates the time when it is desired to have the alarm go off. The other way of setting the alarm is to do it through the medium of the crown A after the setting-slide H" has been pushed outward into its setting position,so as to swing the oscillating lever inward and engage the oscillating pinion C with the outer intermediate setting-pinion D. Now suppose that the user of the watch is desirous at eleven p. m. of setting the watch so that it will sound an alarm at eight a. 111. Having adjusted the watch for setting, as described, the crown A is rotated to turn the hands backward until the hour-hand M reaches the alarm-set hand M at which time the projection D of the hourwheel D will engage with the step M of the alarm-cam M. The hour-wheel now virtually picks up the alarm-set hand, and as long as the hour-hand is turned backward the alarmcam and the alarm-set hand will go with it. Then when the alarm-set hand has been brought in this manner to register with the character S on the dial the crown is turned in the other direction, whereby the projection D of the hour-wheel will be caused to move away from the step M of the alarm-cam M, which will be left, while the hour-hand will then be brought back toindicate the real time, which we have supposed to be eleven ocloek. Now in the ordinary operation of the watch the projection D of the hour-wheel D will drop oft the alarm-cam M at eight oclock the next morning and the alarm-set spring will release the hammer, and the switch being off the alarm will be sounded.

It is apparent that in carrying out my invention some changes from the construction herein shown and described may be made. I would therefore have it understood that I do not limit myself to the exactform shown, but hold myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A stem-winding and stem-setting watch IIC having an alarm-train connected with and actuated by its mainspring, an alarm-set spring coacting with the said train for releasing the same, an hour-wheel coacting with the said alarm'set spring and provided with a projection extending outward from its outer face, gearing between the said hour-wheel and the winding and setting stem for rotating the hour-wheel in either direction, an alarm-cam located upon the inner face of the dial, having a step constructed to be engaged by the said projection, and formed with a short tubular arbor extending outward through a central opening formed in the dial in which it is frictionally held against rotation, having the tubular shaft of the hour-wheel passed outward through it, an alarm-set hand secured to the projecting outer end of the said alarmcam arbor and located close to the face of the dial, and adapted at its outer end to be engaged for sweeping it in one direction or the other over the dial, an hour-hand secured to the projecting outer end of the tubular hourwheel shaft which projects through the tubular arbor of the alarm-cam, a center arbor projecting outward through the tubular hourwheel shaft, and a minute-hand secured to the projecting outer end of the center arbor.

2. In a stem-winding and stem-setting alarm-watch, the combination with a main winding-arbor, of a winding-wheel mounted upon one end thereof and provided with a stop-pin, a stop-wheel located upon the outer face of the front movement-plate in position to coact with the said pin, and constructed with a stop-finger having a beveled face, a stop-wheel spring arranged to coact with the teeth of the wheel and with the beveled face of the stop-finger thereof, an alarm-train connected with the other end of the main winding-arbor and located upon the outer face of the inner movement-plate, an oscillating hammer located between the two movement-plates and connected with the said train for being oscillated thereby, an alarm-set spring located upon the outer face of the outer movement-plate and coacting with the alarm-train so as to release the same, an hour-wheel coacting with the said spring and formed with a projection, and constituting a member of the timetrain of the watch, setting mechanism operated by the winding and setting stem, and coacting with the said hour-wheel for turning it in either direction when the watch is adjusted for setting, an alarm-cam located upon the inner face of the dial of the watch and constructed with a step arranged to coact with the projection of the hour-wheel, whereby the alarm-cam may be set in any desired position through the medium of the hourwheel, and a manual alarm-set located upon the outer face of the dial and connected with the said cam and adapted to be manually operated, substantially as set forth.

3. In a stem-winding and stem-setting watch, the combination with the ring of the case thereof, of a sheet-metal setting-slide longitudinally bowed to conform to the inner curvature of the said ring within which it is located in direct contact, and held against aecidental displacement by friction, and provided with an inwardly-projecting beveled finger, and with a headed operating-pin extending outward through a slot formed in the said ring; and an oscillating lever, the inner arm of which carries an oscillating pinion adapted to be alternately engaged with members of the time and winding trains of the watch respectively, and the outer arm of which is adapted to be engaged by the said finger of the slide for swinging the lever inward preparatory to setting the watch when the slide is moved inward toward the pendant thereof.

4:. A watch having its winding-wheel provided with a stop-pin, a stop-wheel having teeth and having a stop-finger constructed with a beveled face, the teeth and finger of the watch coacting with the said pin, and a stop-wheel spring arranged to coact with the teeth of the stop-wheel and also with the said beveled face of the stop-finger thereof, whereby the said stop-wheel ceases to be rotated under the action of the winding-wheel and the stop-pin thereof after the beveled face of the stop-finger of the stop-wheel has been brought into engagement with the stop-wheel spring.

5. In an alarm-watch, the combination with the ring of the ease thereof, of a segmental bell located within the said ring and secured at one end thereto, an oscillatingbell-hammer located within the movement-plates of the watch in position to swing beyond the edges thereof for sounding the said bell, and a sliding switch or cut-off mounted for sliding movement in the edge of the front movem entplate in position to be moved between the bellhammer and the bell so as to prevent the hammer from swinging outward and striking the bell.

6. In an alarm-watch, the combination with the innerand outer movement-plates thereof, of an oscillating bell-hammer located between the said plates, and an alarm switch or cutoff mounted in the edge of the front movement-plate and consisting of a small bent plate and two studs which project through a segmental slot formed in the plate in position to permit the said bent plate to be moved so as to be interposed between the hammer and the alarm-bell which is located within the watchcase.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

AROIIIBALD BANNATYNE.

XVitnesses:

CLIFFORD II. HALL, EDWARD II. ALLEN.