US1502491A - Alarm-clock mechanism - Google Patents

Description

A. S. TREGER ALARM CLOCK MECHANISM July 22 Filed D c- 20 1923 2 Sheets-Sheet l July 22, 1924. 1.502.491.

A s. TREGER ALARM CLOCK MECHANISM Filed Dec. 20. 192:5 2 Sheets-Sheet 2 :12, IHlllllilllllllllillllllll Patented July 22, 1924.

1,502,491 PATENT OFFICE.

ARON S. TREGER, OF INDEPENDENCE, KANSAS.

ALARM-CLOCK MECHANISM.

Application filed December 20, 1923.

To all whom it may concern:

Be it known that I, ARON S. TREGER, a resident of Independence, in the county of Montgomery and State of'Kansas, a citizen of the. United States, have invented certain new and useful Improvements in Alarm-Clock Mechanism, of which the following is a specification. V

This invention relates to clocks and more especially to the alarm mechanism where the 7 works are set to release the hammer for the bell at a certain time.

The object of the invention isQto provide means to advance the time for which the release is provided so that if the setting in the original instance is unsatisfactory the period may be extended by separating the parts of the mechanism and advancing the release mechanism without allowing the alarm to be rung.

These and other objects and details of the invention are more fully described in the following specification, set forth in the appended claims and illustrated in the accompanyingdrawings, wherein v Figure 1 is a view of part of the clock workswith the dial removed and showing the invention applied to the alarm mechanism, v

Fig. 2, is a side View of the same,

Fig. 3 is an enlarged side view of part of the alarm mechanism, I

Fig. 4 is a similar view with'the mechanism adapted for. re-setting,

Fig. 5 is a perspective view of the parts se arated. V

igs. 6, 7, 8 and 9 are views of a modification. 1

When an alarm clock is set for a certain hourand it is desired to re-set the same to cover a period of twelve hours or greater in advance, as clocks have heretofore been made, it will be necessary to wait for from one to two hours from the time the clock is to be set, before alarm can be set for the desired hour. For instance, if at 3 :00 p. m. it is desired to set alarmfor 6:00 a. m., it will be necessary to wait until 7 :00, and possibly until 8:00 p. m. before it can be set to make the alarm go off at 6:00 a. m. This entails a loss of time in the waiting for the time when it becomes possible that alarm can be set, which is obviated in the present invention by simply disconnecting certain parts and ad vanc-ing the hand and the parts immediately connected therewith.

Serial No. 681,724.

In the drawings the dial. 10 is shown as dotted and through the same, at a suitable point, passes the arbor 11 that carries the hand to indicate the hour for which the alarm is set and at the outside of said dial while at the inner end is a knob 12 by which it is manipulated.

The hand carrying arbor 11 has near its outer end a gear wheel 13 rotating every twelve hours and that is driven by the minute hand of the clock and geared down by the gear wheels 14, 15 and 16 and said wheel 13 is connected with the arbor by means of a pin 17 that engages the shoulder 18 of an indent in the flange 19 of a disc 20 and a pin 21 that plays in a hole 22 of the wheel 13.

The wheel 13 is loose on the arbor 11 as is the disc 20 but the wheel and disc are normally secured together by the pin 21 but at times it is necessary to check the disc While the wheel moves. The pin 21 is held in connection by a flat spring 23 that normally elevates the wheel 13 so that the pin 21 is located in the hole 22 as best shown in Fig. 3, but when it is desired to permit of the independent movement of the parts the spring 23 is depressed by the lip 24 of lever 25 and the wheel is forced away from the disc 20 by a week coil spring 26, that encircles the arbor, and disengages the pin 21.

When thus disengaged the arbor may be turned by its knob 12 to set the head 27 to any other hour on the alarm'dial that is desired, the pin 17 carrying the disc 20 and pin 21 to a new location around the wheel 13 until the new period is reached and as the hole 22 reaches the pin 21, into which it then drops, connecting the parts and operatin the alarm in the usual way. 7 V

In operation suppose at noon the alarm mechanism is set for 7 p. m. and before this time it is desired to reset the alarm for 6 a. m. The lever 25 is thrown to the dotted position shown in Fig. 1 and spring 23 is depressed to release pin 21 so that the arbor 11 and hand 27 may be set forward the twelve hours or so that is necessary and the pin 21 carried that circular distance from the hole 22; when the spring 23 is re leased the wheel 13 is raised to its normal position but hole 22 is free to move around until pin 21is reached and the parts connected so that the alarm may be shortly sounded.

While Figs. 1 to 5 show that the device as applied to an alarm clock to advance the time for ringing the alarm to about twentytwo hours in all with the additional ele ments shown in Figs. 6 to 9 the period may be further advanced to about twenty-four hours. p

In the latter case the pin 28i's part of a disc 29 secured to the arbor 11 and has a downwardly extending lip 80 that passes over asemi-circularlever 81 that is pivoted at'32 an the wheel 13 when the lever 25 depresses; the spring 23. This lever 31 is forced against disc20 by a spring 33 under 28 just after shoulder 18 tell onto pin 28, by pushing lip 2el on spring 23, and when spring 23 is allowed to elevate wheel 13,-

lever is carried up with it, its upper ,fiang' moving: in the path of and under pin 28, thi sfpreventing pin 21 from going back into hole 22 and notch of flange 19 to pin 2 8, when li'p 2l of lever 25 is immediately re- I er I1d34: having moved. upper notch of disc 206m from under pin 28 as it met pin 25 otdisc 20,; 'same'lever, 31 being pushed aside bypins 28 and25 after once coming out from under pin 28, permitting the shoulder 18 to dropfo'nto pin 28, thereby elevating thefdetent at the end of-lever 23 and releasing the escapement dog.

keep alarm arrested while pin 28 is above notch of flange 19, Without which alarm would be released,and to hold pin 28 out of notchiof fiangeltl from which it cannotescape by itself, and to permit theseparation and connection automatically, or disc 20 and wheel 13, thereby permitting two complete revolutions of wheel 13 before alarm is released (24e hrs.) by means o1": pin 21 and hole 22, the automatic disconnection of which is assured by pin 35, that engages the end 34 of said lever. 1

' Theend 23 of lever-23 arrests the movement of the escapement dog 25 (Figs. 1 and 2) until the shoulder '18 drops ofi pin 17 or 28 to permit ofthe further upward movement of spring 23 and lifting of thedetent 23.

Inorder to afford positive action on the wheel 13 by the spring 23 the hub 36 of the wheel has a circumferential groove and the spring has a slot for the passage of the arher that is shaped as a key hole 37 so that when the circular part fits over the hub the elongated slot receives the grooved part of the hub.

V This mechanism is'adaptable to any type of alarm clock and it is obvious that the necessary alterations or modifications may llfldOptedfor such application without departing from the essential features above The 7 object of lever 3 1 is therefore, to

"connected with the clock mechanism, a

spring adapted to hold the gear wheel and d1sc inengagement, and a lever adapted to nullify the action of the spring. p

2, In alarm clock mechanism, the combination of an arborhaving a knob and an" indicating hand and a lateral pin'fa gear Wheel connected with the clock mechanism,

a disc having a notched flange to be engaged bysaid lateral pin on the arbor, mansbohnecting the gear wheel to the disc, and means 'for releasing the gear wheel from the di'sc.

y In an alarm clock mechanism, mecca bination ofjan arbor carrying an indicat ing hand, a disc loosely carried on the arbor, means for connectnigjand releasingthe disc from the arbor, a wheel "geared with the clock mechanism and connected with the disc, and means for disconnecting the wheel from the'disc. l 4. y In an alarm clock mechanism, the combination of an arbor carrying an alarm dial hand, a disc having an indent and loose on the arbor, a'pin carried by the arbor' and engaging the indent, a gear wheel driven by the clock mechanism and adapted to :be

coupled with the disc, and a lever adapted to permit the disconnection of the gear wheel and disc; V 7

5. In an alarm clock mechanism, the com= bination of an arbor 'fore the dial handand having a lateral pin, a disc loose on'the arbor and engaged by the pin, a wheel geared with the clock mechanism, a pin coupling the disc with the wheel, a spring'holdingthe disc'and wheel in engagement, and alever adapted to depress the spring anduncouple the disc and wheel; I: j I 6 In an alarm clock mechanism, the ombination of a hand carrying arbor, aloose disc on the arbor, a1 pin on the arbor and adapted "to engage the disc, a-"geanwheel loose on "the' 'arbor and havinga perforation, a "pin" on one side of the disc and normally located in the perforation, a, light spring adaptedto separate the disc andwvheel'when the latter'iis 'released, a flat spring forcing the wheel-and disc into contact, and a lever adapted t'o'fd'e press the latterspring and remove it from the wheel. t

, '7. In anfalarm clock mechanism. therein bination' of "an arborffor the 'dialhand, a lateral pin, a disc having aninde'nted flange to be engaged by the said'p'in, a'pin on the lower sidefof'the disc, a gearwheel driven I by the clock mechanismand having a'hole prevent the entrance of the pin in the indent, a gear Wheel carrying the lever and having a perforation, a pin beneath the disc adapted to fit the perforation, a spring adapted to separate the disc and gear Wheel, a spring having a detent to engage the es capement dog, and a lever adapted to depress the latter spring.

In testimony whereof I hereunto afiix my 20 signature.

ARON S. TREGER.

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