US2024857A - Time controlled annunciator - Google Patents

Description

Dec. I7, 1935. P, Hl HENRjKSON 2,024,857

' TIME CONTROLLED ANNUNC'IATOR Filed Nov. 22, 1955 4 Sheets-Sheet 1 i"llllullllf' l IN VEN TOR. PETE/i Halve/K HENR/KSON hug, Ma@ $4.7

A ORNE YS.

4 Sheets-Sheet 2 WN W.

P. H. HENRIKSON TIME CONTROLLED ANNUNCIATOR Filed Nov. 22, 1935 wwf# Dec. E7, i935.

INVENTOR. /E/we/K HENK/Kaon [klim IIIi---vl'ml-n PETER bec., 17, 1935. P. H, HENRIKSON TIME CONTROLLED ANNUNCIATOR i Filed Nov. 22, 1933 4 Sheets-Sheet 4 mm/ Rm s. OE Y www@ q7/ WH N IM A a/ mm# 7 E H m w JY DB a b. u

Patented Dec. 177, 1935 UNITED STATES PATENT OFFICE 7 Claims.

This invention relates to time controlled annunciators, and same has for its principal object to provide an annunciator which may be very easily combined with the essential working parts of an alarm clock and which will include a decidedly novel setting mechanism and means co-operable therewith for causing the alarm to sound either at a single predetermined time or periodically and at diiferent predetermined' l0 times as may depend upon the use to which the annunciator is put.

The annunciator is primarily, but not necessarily, designed for use for the purpose of reminding one that a particular time of the day has appreached for the tuning of a radio receiver for the reception of a particular program which is to be broadcast from a certain sending station. I am more or less familiar with various well known types of station tuning mechanisms for use in connection with radio receiving instruments and that they have had for their purpose the automatic tuning of the receiver at a predetermined time. Such automatic station selectors or tuners have not proven entirely practical for more than one reason. They are usually complicated; not always entirely reliable and are somewhat costly and diiicult of operation. In view thereof, I have designed an instrument whose cost should not much exceed that of an ordinary alarm clock, one which is of light weight and freely portable and which may be used to satisfy all of the ordinary purposes of an alarm clock, thus enabling the instrument to be employed in this highly distinctive dual capacity. I have further constructed the instrument so that use thereof shall not require that it be incorporated in a receiving set or connected with any of the working parts of said set.

A very important object of my invention is directed to a novel alarm setting mechanism whose design makes possible an almost unlimited range or" time adjustments, whereby the alarm may be made to sound on the hour; or at fifteen, thirty or forty-five minutes thereafter, or at times separated from each other by fifteen minute intervals between any two consecutive hour indications upon the dial of the instrument.

@ther new and novel features of the invention will suggest themselves to those skilled in the art upon reference to the accompanying drawings, in which Figure 1 is a view in front elevation of the annunciator;

Figure 2 is a View in rear elevation of a portion of the dial showing the alarm releasing means of the hour hand arbor;

Figure 3 is a section taken on the line 3--3 o Figure 2;

Figure 4 is a section on the line 4-4 of Figure 3;

Figure 5 is a view in side elevation of the annunciator, with parts broken away and parts in section; 5

Figure 6 is a View somewhat like Figure 5, showing the parts in the positions assumed when detent mechanism has been released at a predetermined time;

Figure 7 is a View in elevation of a portion of the casing showing the form of minute dial employed;

Figure 8 is a section on line 3 8 of Figure 5, looking in the direction of the arrow;

Figure 9 is a View in elevation showing the alarm tripping mechanism in its set position;

Figure 10 is a view similar to Figure 9, showing the alarm tripping mechanism in a tripped position as when sounding the alarm;

Figure ll is a view similar to Figure 10, showing the positions of the parts of the alarm tripping mechanism such as they would occupy just prior to their return to their set positions;

Figure 12 is a view in edge elevation of parts of the clock mechanism and parts of the alarm tripping mechanism;

Figure 13 is a vertical section taken substantially on the line Iii-i3 of Figure 12;

Figure 14 is a section taken on the line III-I4 of Figure 1l.

In Figures 1 and 2 of the drawings is illusti'ated a clock casing IS, at the front of which is an hour dial Il through the center of which passes an hour hand arbor I2. The said dial is provided with an outer portion I3 formed with 35 twenty-four radial slots I4. These slots are equi-distantly` spaced apart from each other and the alternate ones are alined with the respective hour markings H on said dial, and the others are positioned just midway between the said hour markings. These slots open at their outer ends onto the peripheral edge of said dial and lying in a position parallel to each slot is a friction inducing spring I5. Mounted to slide in each of the slots is an elongated 45 predetermining element I6, the transverse shape of which is circular as shown in Figure 4. These elements are formed at their sides with longitudinal grooves l1 in which the edge Walls of the slots Iii are received, whereby the ele- 50 ments IS can be moved radially of the dial. The springs I5 are threaded through the mating elements IS and same coact with the adjacent grooves Il to yieldingly bear against the walls thereof to induce sufcient friction between the elements and the springs to cause said elements to be retained in their selected positions of radial adjustment in the slots I4. Midway of its ends, each of said elements IB is formed with a kerf or marking I8 and same is adapted to or marking I9 on theV dial.

coincide with a concentrically positioned band It will be noted that the elements I6 are of short length With respect Vto the length of the slots i4 so'that they may each be moved to any one of several possible positions on the dial, as will be appreciated upon reference to Figure l of the drawmgs.

In back of the dial Il and Ysecured in a fixed position on the arbor l2 is a large pinion 20 Which meshes With a small driven pinion 2|,V

the latter constituting a part of a clock mechanism to be described later. The pinion20 is accommodated in the slot 22 in a plate or head 23, the latter flanged at 24 within the annular walls of the casing l as shown in Figures 5 and 6. The arbor carries a fixed radial arm 25 of resilient material, at one side of which is a power transferring member 26, the same hinged at 2 to said arm 25 so that it can move laterally with respect to the inner face ofthe dial il. The hour hand arbor is formed with an axial bore 28 in which a pin 29 is mounted for limited sliding movement. Positioned in back of the pin is the angular branch 36 of an oscillating shaft 3l, the latter being operatively mounted on said arm 25. The shaft is also formed with an angular branch 32 and same is constantly disposed in the path of movement of the member 26. It is in this manner that the pin 29 is adapted to be projected to the position shown in Figure 6 and to normally occupy the position shown in Figure 5. A leaf spring 33 is carried by the member 25 and same yieldingly bears against the rear face of the member 26 so as to normally urge the latter in the direction toward the inner face of the dial H. The member 25 is formed at its outer end with an angular slotted portion or guide flange 3d through which passes the reduced end 35 of the aforestated member 26, and, as illustrated, said end 35 is provided with a pair of conical studs 35 and 3l which face towards the back of the dial l l. The studs are staggered With respect to each other and they occupy positions relatively to the circle or marking i9 on the dial l l so as to move along annular paths which are concentric thereto and to be intercepted or obstructed by some of the elements i6 and to coact cam-like therewith during rotation of the hour hand H1. This causes motion to be set up in the rocking shaft 3| and in turn utilized to partly project the pin 29 from the bore 2B in the hour hand arbor l2. In the description to follow, I shall refer to the stud 36 as the outer stud and Vthe one 37 the inner stud. Substantially all of the parts so flange 34 formed with a smooth faced foot 38 'which is adapted to readily ride against the inner flat face of the aforementioned head or plate 23 during rotation of the hour hand arbor.

On a driven shaft 40 is mounted the aforesaid small pinion 2| as shown in Figure 2. This shaft is adapted to be driven through a gear train Which includes the driving gear Ma as shown in Figures 9 and 10. Except as herein specifically referred to, I of course make no claim to the clock Works per se. I shall'therefore describe those parts thereof that may be deemed 5 necessary to enable a person skilled in the art to understand and practice the invention. Y On the center wheel shaft 32 is a cam 43 the same adapted to make one revolution in each hour. This shaft has a gear pinion il@ Which meshes 10 with a minute Wheel 65. (Figures 9 and 10), the latter meshing with a small gear pinion i6 on the shaft 61 kof the minutes indicator 48, the pinions il@ and 36 each having the samenum- .ber of teeth. The clock frame i9 upon Which 15 the shaft 6l is mounted to revolve is provided with a dial 5t, thelatter positioned in back of a transparent panel 5i mounted in the Walls of the casing l, as shown in Figure '7. The U shaft fil passes through said dial and same has go xed thereto a minute hand 52. This hand is situated behind the panel 5! and same is adapted to coact With the minute markings on the Vscale'of said dial. At this point it should be noted that the scale of the dial 56 is divided 25 into a number of time indicating divisions which exactly coincide with the number of pos-- sible time adjustments of the respective elements i6 on the dial Il. When the hand 52 shall have made one complete revolution aboutgo its dial 56, the hour hand I-I1 will haveftraveled one-twelfth its distance about the dial H. VBecause of the means herein employed Vfor driving the so-called minutes hand 52, it follows that the action of this hand is operatively syn- 35 chronized with that of the said hour hand H. With the matter just preceding in mind and on reference particularly to Figures 9, l0 and 11 of the drawings, it will now be noted that the f aforesaid cam i3 on the hour hand arbor 42 is 0 formed with four identically constructed radial lobes which are separated from each other by substantially V-shaped notches 54. Each of these lobes is formed with a smooth peripheral surface Whose function and that of each the notches 54 will be described presently.

Mounted to rock as a unit on the stub shaft 5B of the frame 56 is a lever assembly 57, consisting of arms 58, 67, 68 and 69,all of which are intended -v to rock as a unit. The arm 58 is formed with a shoulder 59 against which a pin 66 on the long arm 6i of a rocker 62 is adapted to engage when the parts occupy the relative positions shownV in Figure 11. This rocker is pivoted to the frame y 49 at 63, and at a point below said pivot, said 55 rocker has attached thereto one end of a coil spring 64. The opposite end of this spring is connected with the frame i9 and it thus follows that by the action of said springthe rocker willbe urged in the direction of the arrow (a) in 60 Figure ll, the moment the pin 66 is free from said shoulder 5S. Said rocker is formed with an arcuate slot in which a stop pin 65 on the frame Il@ passes. As previously stated, the lever assembly 5l also includes the arms 6l, 68 and 69, 65 the latter having a foot 76 adapted, when the lever assembly tilts under the Yaction of the spring 5M, and to the position'shown in Figure 10, to contact with the latching stub 'H on the oscillatory member l2. The member 'l2 extends 70 from an oscillatory spring tensioned shaft 73, the ends of Which are mounted to turn freely in the respective side plates of the frame @9. The spring 73a (Figure l2) of the shaft 'i3 functions to urge the member 12 in the direction of the 75 arrow (b) in Figure 9. From said shaft 13 extends a latch arm 14, the free extremity of which is formed with an angular branch 15. Upon reference to Figure 9 of the drawings, it will be noted that when the lever assembly occupies the position therein illustrated, the branch 15 of the arm 14 engages in the notch 16 in the peripheral edge of a disk 11 which latter constitutes a part of a spring actuated hammer operating means 13, (Figure 14) the said disk being carried by a sleeve 11a which is free to rotate on the shaft 19, said sleeve having secured thereto a gear 11b. The gear 11b is adapted to be driven by the spring through the escapement element 81 (Figure 13) co-acting with the escapement wheel 88 of the means 18. The aforementioned latching stub 1| of the oscillating member 12 is adapted to engage in the notch 8| in the end portion 82 of the vibratory hammer arm 83, the hammer 34 of which is correlated to the bell 85 so as to operate thereagainst as would be the ordinary action of like parts in the customary operation of any well known form of alarm clock. It will doubtless sufce to say that the arm 83 is Xed to an oscillatory shaft 36 and that the latter is provided with the escapement element 81 which coacts with the aforementioned escapement wheel 88 of the means 13. From what has been stated, an alarm releasing actuation set up in the shaft 13 will cause the stub 1| to be withdrawn from the notch 8|. This will be followed by an immediate release of the branch 15 from the notch 16 in the disk 11 and the member 12 will be then acted upon by peripheral engagement with the disk until the latter shall have made one complete revolution, at which time, the stub 1| will again enter the notch 8| and thus shut off the alarm mechanism.

The arm 61 is adapted to coact with a latch member 89, the same pivoted at 9|] to the frame 49, and normally urged to the position shown in Figure 5 by the spring |98. Said member is formed with a hook 9| and a lug 92, the latter spaced apart from the shoulder 93 of the aforesaid hook so that when the member occupies the position shown in Figure 5, the free end of the lug will bear against the offset free end 94 of a leaf spring 95. The spring 95 is secured at 96 to the head 23 and same traverses the open end of the bore of the hour hand arbor where it will be forced to the position shown in Figure 6 against the normal action of the spring |98 when the pin 29 is projected in response toan action set up in the power transferring member 26, such as when one or the other of the cone shaped studs 36 or 31 is acted upon a by a previously set element I6, see Figure 6. The arm 68 is formed with a cam face 91 and on reference to Figure 10, it will be seen that same is adapted to freely enter any one of the spaces 54 between the adjacent lobes 53, at which time the inner face of the arm 61 will come closely against the shoulder 93. When, however, the peripheral face of any one of the lobes is in contact with the edge portion 91 of said arm 88, there will exist a clearance between the shoulder 93 of the latch member 89 and the inner edge portion of said arm, the purpose of which will be explained in the description of the operation of the invention to follow.

The pin 69 on the arm 6| is adapted, when the lever assembly 51 is in the position shown in Figure 10, to engage in the recess 99 in the arm 58 and to ride over the cam face |69 during the return of the arm 62 to the position shown in Figure l1. On the rear face of the disk 11 is a pin and during rotation of said disk in the direction of the arrow in Figure 10, said pin will engage with an arm |92 of a rock shaft |33, the latter having a lug |84 in the arcuate path of movement of which is disposed a stop |95. This shaft |83 is formed with an actuating lug |96, the spring 64 tending to present the cam edge |81 to said lug. It follows that when the disk 11 moves in a counterclockwise direction, the pin |9| will coact with the arm |92 and thus urge the lug against the face |91, and, in turn, rock the arm 62 against the action of the spring |59. This causes the pin 85 to bear against the face |30 of the lever 58 and to ride thereover and to finally fall behind the shoulder 59, whereby to sufciently tilt the lever assembly. to raise the foot 18 away from the lug 1|, at which time the several coordinated mechanisms will have assumed their normal positions.

In Figure l of the drawings the element i6 between the hours of twelve and one has been adjusted to a position where its outer end coincides with the circular marking |9 on the outer portion of the dial so that when the hour hand I-I1 shall have moved to a position indicative of twelve thirty ocloclf., the stud 38 of the member 26 will ride over said element, and in doing so, the member 26 will be rocked against the action of the spring 33. In consequence thereof, motion will be imparted to the shaft 3| to project the pin 29 to the position shown in Figure 6. The pin 23 is thus forced against the leaf spring 95, and the oifset end 3l! of said spring is brought to bear against the lug 92 of the latching member 89, which, in turn, moves the latter against the normal influence of the spring |88. In operative synchronism with the aforestated movement of the member 26, the cam wheel 43 will have rotated to the position where its adjacent lobe 53 will have left the edge 98 of the arm 38, allowing the free end of the arm |53 to enter the adjacent space 54 and the entire lever assembly 51 to tilt by virtue of the action of the spring 51a.. In so doing, the foot 19 of the long arm 69 will be presented against the latching stub 1| with sufcient force to throw same out of the notch 8| in the hammer arm 83. Concurrently with this actuation the branch 15 of the latching arm will be retracted from the notch 15, (see Figure l0) in the aforementioned disk 11, at which time the alarm spring 3B will function to render the alarm mechanism operative for a sounding of the bell throughout a period of time represented by a complete revolution of the disk 11. When the pin i8! of disk 11 strikes the arm |92, following withdrawal of branch 15 fro-m notch 15, the lug |95 is forced against the cam surface |91, as illustrated in Figure l0, and the arm 6| thereby rocked in a direction to causeI the pin 5] to ride over the surface |59 and seat behind the shoulder 59 oi arm 58. This forces the entire assembly 51 to move to a position where the foot 18 will be slightly elevated above the stub 1|, thus allowing the branch 15 to again enter the notch 15 and latch the hammer arm as soon as the branch 15 re-enters the notch 1S or when the disk 11 makes a complete revolution. Assuming that the pin i9| has acted upon the lug |93 as above stated, the assembly 51 will of course assume the position shown in Figure ll and the spring 51a now functions to hold the shoulder 59 against the pin 60 of the arm 6l, whereby to prevent the latter from moving under the urging action of the spring 34. With the several parts inthe positions just described, it is to be understood that the latching member` SQ will be entirely released from the arm 6l. The hook 9i of the latching member Q9 is curved along its edge 59 for a purpose to be explained presently. During normal continuation of the clockwise movement of the cam e3, the peripheral edge of the next successive lobe 53 will gradually wipe against the cam surface of the aforesaid arm E8, gradually tilting the entire lever assembly in a counterclockwise direction, thus causing the shoulder of the arm 58 to leave the pin and allowing the arm 6l to return tol the position shown in Figure 9 ready for the neXt actuation of latching member 8S. Simultaneously therewith, the arm 6l rides over the curved edge H39 of the latching member 89 until it shall have again assumed its positionvshown in Figure 5. It is to be borne in mind that stud 36 having left element been allowed to retract by Ywithdrawal of pin 29 as will be clearly understood upon reference to Figures 5 and 6. Assuming now that the ele-V ment i@ between the said hours of twelve and one oclock has been returned to its unset or innermost position in its dial slot id, and that all of the remaining 'elements have been likewise adjusted, it manifestly follows that the cam i3 may freely operate and the peripheral edges of its respective lobes moved across or against the edge @il of the arm 58 without causing a tripping or releasing of the alarm mechanism. During this action of the said cam the lever assembly 5l will merely oscllate iirst in one direction as will be compelled by the action of the lobes in their successive engagement against the arm 68 and then in an opposite direction as will be compelled by the action of the spring 51a. The construction of the'organization is such that when all of the elements occupy inactive positions or when none of them lie in the path of either of the studs 36, 3'?, the device may be employed to satisfy the requirements of an ordinary clock. The minutes indicator 48, from the fact that same is driven in operative synchronism with the hour hand, makes one complete revolution to one-twelfth of a revolution of the hour hand H1. It is to be understood that I am not to be limited in this respect, any more than I care to be conned to the provision oi` means on the dial il for allowing merely four specinc actuations to be set up inA the alarm mechanism. I have elected the specic arrangement simply because of the one particular use to which the invention may be put.

Next assume that it is desired to cause thel alarm to sound first at one thirty oclock and then at one forty-five oclock. It is simply way between the hours of one and two, and stud 3l will engage the element .e in like manner asY before described and the alarm mechanism will be placed in operation. By the time the next succeeding lobe shall have come into operative action, the stud 35 will have been acted l5, the spring 95 has.

upon and the alarm mechanism-will be tripped at one forty-five oclock. Y A

When the element it on the hour ofV three is moved to the extreme outer position (Figure l) the pin 3@ will engage, therewith and the stud 3S will engage said element and the alarm will be sounded.

I show twenty-four of the elements I6 and each thereof functions in the same manner so that the kalarm may sound (l)- onV any hour; (2) fteen minutes after the hour; (3) thirty minutes after the hour, and (4) forty-veminutes afterthe hour. I have'elected to do this merely for thel reason that the majority of radio programs are for the durations within the range of times herein provided for. v On reference to Figure 9, it will be observed that the free end of arm 63 rests against the face 55 of one of the lobes e3 of Ycam 3, at which time the edge of arm 5l which confronts the shoulder t3 of latch 89 will be slightly spaced apart therefrom, (see Figure 5). This is to reduce the friction between these part-s during movement of Ythe latch to a released position as shown in Figure 6, at which time the free end of arm $8 will drop into Vthe confronting dwell of the cam to eect a sounding of the alarm. It will be appreciated that in order to further relieve the time train of loads, the alarm train is, by virtue of the arrangement herein f disclosed, wholly relied upon to return the lever assembly to a position where the foot lever 7i! will clear the stud 'H after the alarm is sounded. vIn order that one may readily reconcile the terms employed in the claims with like terms employed in the body portion of this description, the term clock wor M shall mean the entire mechanism of the conventional clock Y herein shown; the term "alarm mechanism shall include all of the parts ordinarily employed in an alarm clock plus those extra parts which I have herein fully disclosed and specifically referred to; the hour hand operating means shall include the intermeshing gear pinions 2i? and 2l; the tripping means shall inmeans shall include the entire organization of elements. it, and the means for causing periodilcal actuations of the tripping means and hence the alarm mechanism shall include the spring es, the pm 2e and the arm 2t and its adjuncts, and it is to be borne in mind that the synchronized operations herein referred to are in part due to the provision of the cam i3 on the hour hand operating shaft of the clock works.

The means for stopping operationv of thel alarm mechanism at the expiration of .a Xed time shall, ofcourse, include the disk 'il and the coacting branch l5 of the member l2, the notch 'i6 of the disk acting cam-like to force said branch out of the notch and allow for such movement of the stub ll as would be obviously required to free the latter from the notch Si in the hammer arm 83, and to hold same in this condition until the disk shall have made a complete revolution. When this shall have been accomplished, the alarm mechanism will cease to operate. During this operation, the pin lill Will engage the arm 13a and the lug IDB will be forced against the cam edge IM of the rocker E2, thus moving said rocker and causing the pin 6D thereof to ride over the inclined face lei) and nally come to rest behind the shoulder 5s. In doing so, the foot 'la of the arm E9 will be slightly raised away from the stub ll and to a position above the notch 8|, Where it cannot prevent the stub from re-entering said notch, the disk 'il havin now made one complete revolution.

I claim:

1. A latch releasing organization for the alarm mechanism of a clock, comprising a dial having hour markings; an arbor having a hand coacting with said markings and provided with an axially movable pin; a spring bearing against the pin to urge same in one direction; alarm setting means adjustable from one position to another radially of the dial; pivoted means carried by the arbor and provided vvith a plurality of relatively staggered studs adapted to successively engage With the setting means when the latter is adjusted to one position, whereby to tilt the pivoted means; and a device cooperable with the pivoted means and With the pin to successively move the latter in response to corresponding movement of said pivoted means, and against the action of said spring.

2. The combination with the dial of a clock, the same having a radial slot; of an alarm setting element slidable in the slot and adapted to be manually moved from one position to another; in the length thereof; and a linear spring attached at one end to the dial and having its opposite end freely passing through the element so that a yielding force Will be exerted against the element to hold same in a position of selected adjustment.

3. In an organization of the class described, a clock Works including a time train mechanism having an hour hand arbor and a center wheel arbor; an alarm device including an alarm train. mechanism; means for holding the alarm train mechanism from operating; a dial having time predetermining elements; movable means on the hour hand arbor positioned to engage the time predetermining elements and to be moved thereby during movement of the hour hand arbor in a clockwise direction; lever` means tiltable from one position to another in response to predetermined movement of the center Wheel arbor and movement of the hour hand arbor means and disposed to actuate and free the holding means from the alarm train mechanism; and means actuable through the time train mechanism and the alarm train mechanism for returning the lever means to said one position.

4. In an alarm mechanism, a clock Works including a dial having hour markings; an hour hand coacting with said markings; a time train mechanism for the hour hand; an alarm device including an alarm train mechanism; the dial having radial slots, some coinciding with the hour markings and others thereof disposed ini intermediate positions with respect to said markings; a time predetermining element in each slot, the same having portions respectively disposed in front and in back of the dial and each of said elements being manually adjustable to a predetermined position in its slot; means for holding the alarm train mechanism from operating; means controlled through the time train mechanism for releasing the holding means from the alarm train mechanism and including a device movable respectively into and out of engagement With said time predetermining elements during operation of the time train mechanism; and means for effecting 're-engagement of the holding means with the alarm train mechanism after a given amount of rotation of said alarm train mechanism.

5. In mechanism of the class described; a dial including an hour hand arbor; an arm Xed to the arbor and disposed at the inner face of the dial and provided with a laterally tiltable member; means for tilting said member in one direction; means on the dial positioned to engage the tiltable member to tilt same in an opposite direction; a pin slidable through the arbor; and an oscillatory shaft on the arm provided with a portion engaging the pin and a portion engaging the tiltable member, whereby to transfer movement in one direction to the pin when the member is tilted in said opposite direction as aforestated.

6. In an annunciator of the class described, a s

clock Works including a time train mechanism having an hour hand arbor; an alarm device including an alarm train mechanism; means for holding the alarm train mechanism from operating; a dial having a radial slot; a time pre- Y determining element slidably mounted in said slot and adapted to be moved to any one of a plurality of positions in the length of the slot; an arm xed to the hour hand arbor and provided With tiltable means having a plurality of e studs disposed relative to the dial to successively engage and ride over said predetermining element at predetermined times when the element is adjusted to one position in the slot, whereby to successively tilt said tiltable means, and said studs being disposed relative to each other so that When the predetermining element is in another position in the slot, one only of the studs will engage and ride over the element; and means for actuating the holding means to release same from the alarm train mechanism in response to tilting movement of said tiltable means.

'7. In time controlled mechanism, a dial having hour markings and an annular series of radial slots, the alternate ones of the slots coinciding with said hour markings and said dial having an indicating mark disposed medially of the ends of said slots; manually adjustable time predetermining elements slidable to respectively different positions of adjustment in said slots relative to said indicating mark as indicative of different time intervals; a time train controlled hour hand arbor, the same having a hand coacting with the aforementioned hour markings; and alarm train releasing means including an element carried by said arbor and formed and disposed relative to the dial for engagement with and adapted to be moved once by any one of said predetermining elements When in one position of adjustment in its slot relative to said indicating mark and to be moved a plurality of times by said element when the latter is adjusted to another position in its slot relative to said indicating mark.

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