US615044A - Wilson e - Google Patents

Description

No. 6l5,044. Patente d Nov. 29, I898. w. E. PORTER.

ALARM CLOCK.

(Application filed-Tune 2B, 1897.;

(No Model.)

UNITED STATES PATENT OEEIoE.

IVILSON E. PORTER, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE NEW HAVEN CLOCK COMPANY, OF SAME PLACE.

ALARM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 615,044, dated November 29, 1898. Application filed June 23, 1897. Serial No. 642,581. (No model.)

To all whont it nuty concern:

Be it known that I, WILSON E. PORTER, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvementin Alarm-Clocks and I dohereby 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, and represent, in-

Figure 1, a view in rear elevation of a clock constructed in accordance with my invention; Fig. 2, a partial plan view thereof with particular reference to showing the connection of the supplemental badger-wheel arbor with the time-movement of the clock; Fig. 3, a detail view showing the gearing between the said arbor and the arbor ot' the third wheel of the time-movement.

My invention relates to an improvement in that class of repeating alarm-clocks which are by the trade called badger-alarms for the reason that instead of sounding a continuous alarm they are constructed to sound an intermittent or badger alarm, the object being to improve such clocks with respect to the positiveness of their action and the reliability of their performance.

I may further add that my present invention is in fact an improvement upon the repeating alarm-clock shown and described in United States Patent No. 580,056, granted to the New Haven Clock Company April 6, 1897, upon my application.

\Vith these ends in view my invention consists in a clock having certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claim.

In carrying out my invention as herein shown I employ in addition to the ordinary parts of an alarm-clock an arbor A, which for convenience of identification I shall hereinafter call the alarm-arbor. This arbor carries an alarm-wheel B, which has the general characteristics of an esoapement-wheel. The said arbor has also mounted upon it a wheel C, which is meshed into bya wheel D, mounted upon the arbor E of the third Wheel F of the time-movement, which does not need further description, as it may be of any approved construction. I may here remark that the alarm-arbor A and the wheels C and D are supplied to the clock over and above the parts which it would ordinarily contain and are all supplemental parts. I also wish to point out that the arbor A is mounted in the movement-plates G and G of the clock at a point above the center arbor H thereof and therefore at a point relatively near the lockwork of the alarm mechanism, the said lockwork including the verge-arbor I, the verge I, mounted thereupon, the shut-off wire 1 which extends inward toward the arbor A, the hammer-hub I the hammer-tail 1 the hammer 1 the counterbalance-arm I, and the counterbalance 1 the hub I being secured to the projecting rear end of the verge-arbor I. The escapement-like alarm-wheel B is rotated at a relatively slow or fast speed by changing the wheels C and D, the rate of its rotation determining the intermittence between the soundings of the alarm. The said wheel B coacts for the sounding of the alarm with arepeating-fingerJ,formed integral with and projecting inwardly from a stop-arm J, formed integral with and extending inwardly from a sheet metal escapement -lever J which swings upon a stud J mounted in the rear movement plate G of the clock. A light spring J engaging with the under edge of the lever J exerts a constant effort to lift it upward forthe engagement of the repeatingiinger J with the wheel B. The extreme end of the stop-arm J, before mentioned, coacts with the lower end of the shut-off wire 1 as will be hereinafter described. A shut-off 1ever K, formed of sheet metal and arranged in a substantially vertical position, is pivotall y connected with the rear movement-plate G by means of a stud K, passing through its lower end, the said stud being located at a point between the center arbor H and the badger-arbor A. The said shut-off lever extends above the movement and is furnished with a rearwardly-bent operating-arm K by means of which the lever is manually operated for putting on and shutting off the alarm. The said lever is formed with a shutoff arm K which extends inwardly from it and coacts with the shut-off wire 1', before mentioned. The extreme lowerend of the shut-off lever is formed with a toe K, which coacts with the extreme outer end of the repeating-lever J A horizontally-arranged slot K formed in the shut-off lever, clears the projecting rear end of the arbor A.

The mechanism by means of which the alarm-train is periodically released by the time-movement may be of any ordinary construction and does not need description. When it is released, the shut-off lever being set so as to put on the alarm, the repeatinglever J is at once lifted by its spring J, whereby its stoparn1 is brought into position for engagement by the shut-off wire I and its repeating-finger lifted up between or partially between the teeth of the alarm-wheel B. As the alarm-wheel rotates, its teeth will engage with the face of the finger J and depress the repeating-lever sut'ficiently to clear the end of its stop-arm from the shut-off wire, whereby the alarm-train will be released and allowed to run so long as the repeating-lever is maintained in a depressed position by the teeth of the alarm-wheel, which is engaged with the repeating-finger of the lever. I'Vhen, however, in the rotation of the said wheel the tooth is cleared from the said finger, the spring J acts immediately to lift the lever, so asto introduce its finger, as it were, between the next succeeding tooth of the wheel, whereby the stop-arm of the lever is brought into position to coact with the shut-off wire of the lockwork. There will now be an intermission in the sounding of the alarm until the time-train has run long enough to revolve the alarm-wheel sufliciently to again depress the repeating-lever enough to clear its stoparm from the shutoff wire.

In the manner described the alarm will be intermittently set off at periodic intervals. Such an alarm is much more effective than a continuous alarm, because it is the starting of the alarm which wakens the sleeper rather than a continuation of the noise. The alarm will be intermittently sounded until the sleeper gets up and shuts it off or until it is automatically shut OR by the action of the alarm mechanism in the usual way; but it will run for a relatively long time if not shut off by the shut-off lever. hen it is desired to cut the alarm off altogether, the shut-off lever is swung from left to right, whereby its shut-off finger engages with the shut-off wire of the lockwork and locks the verge 1 into the esca1: ement-wheel L. The same movoment of the shut-01f lever causes the toe K" of the same to act upon the escapement-lever, which is thus pushed down out of all engagement with the alarm-wheel or shut-off wire.

By introducing into the cloclomovement a supplemental arbor and using the same as an arbor for the alarm-wheel instead of utilizing one of the arbors of the time-train for this wheel I am enabled to locate the said arbor in the position most advantageous for it, which is relatively near the lockworlgwhereby the repeating alarm mechanism, so to speak, is located close to the loekwork, thus simplifying the said parts and making their coacting members so short as to reduce the liability of their being bent and deranged to the minimum.

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 exact construction herein shown and described, 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-

In a repeating alarm-clock, the combination with the time-train thereof including a center arbor, of alarm mechanism including lookwork which is located above the said center arbor, an alarm -wheel outside of the said train and located above the said center arbor in close proximity to the said lockwork for intermittently releasing the alarm mechanism after the same has been released by the action of the time-train in the usual manner, means for carrying the said alarm-wheel, op erating connections between the said alarmwheel and the iime-train which drives the alarm-wheel continuously, a repeating-lever coacting with the said alarm-wheel and lockwork, and a shutoff lever coacting with the repeating-lever for shutting off the alarm and for clearing the said repeating-lever from the alarm-wheel whereby the time-train is relieved of the drag of the repeatingdever.

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

\VILSON E. PORTER.

Witnesses:

EUGENE CARTIER, D. .T. IITNMAN.

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