US1050402A - Alarm-clock. - Google Patents

Description

E. E. STOCKTON.

ALARM CLOCK.

APPLICATION FILED APR. 6, 1912.

Patented Jan.14,1913.

COLUMBIA PLANDORAFM Co.,wAsHmoTON, 0.1:.

.UNITED STATES PATENT OFFICE.

ELMER E. STOCKTON, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE E. INGRAHAM 00., OF BRISTOL, CONNECTICUT, A CORPORATION.

ALARM-CLOCK.

Specification of Letters Patent.

Patented Jan. 14,1913.

Application filed April 6, 1912. Serial No. 689,020. I

'1 '0 It 10/1.0mm concern Be it known that I, ELMER E. STOCKTON, a citizen of the United States, residing at Bristol, in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in Alarm-Clocks; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in-

Figure 1 a face view illustrating a clock case and a portion of the alarm mechanism illustrating my improved method for arresting the movement thereof. Fig. 2 a broken view with the front movement plate removed. Fig. 3 a vertical sectional view showing the alarm arresting plunger in its raised. position. Fig. 4 a similar view showing the alarm arresting mechanism in its depressed or operating position. Fig. 5 a sectional view illustrating a modified form of plunger. Fig. 6 illustrates provision for the engagement of the plunger with various parts of the alarm mechanism.

This invention relates to an improvement in alarm clocks, and particularly to mechanism for stopping or releasing the alarm mechanism; that is, it is sometimes desirable to prevent the alarm from sounding, and sometimes it is desirable to stop the alarm mechanism after it has begun operation.

The object of this invention is to arrange the means for controlling the alarm mechanism through the ring-head commonly ap plied to alarm clock casing so that the means is at convenient point for operation; and the invention consists in the construction hereinafter described and particularly recited in the claims.

In carrying out my invention I employ a plunger 2 vertically movable in and extending above and below a fixed ring-head 3 formed at its lower end with a threaded stem which passes downward through a perforation in the apex of the thin sheet-metal peripheral band 4 of the clock-ease, which is reinforced at this point by a heavy wrought-metal bracket 16 secured, as clearly shown in Figs. 3 and 4. to the upper edge of the front movement-plate 15 of the clockmovement. This bracket is formed with a horizontal arm having a threaded perforation 17 for the reception of the tl'n'eaded stem at the lower end of the ring-head 3 which is thus firmly supported so that when the plunger 2 is suddenly pushed downward the force of the blow will be taken by the bracket 16 rather than by the thin sheetmetal band 4, the bracket extending under the band at along the line where it receives the greatest force of the downward thrust of the plunger. The ring-head supports the usual ring or handle 5. Atthe upper end of this plunger is a finger-piece or button (3 of any desired design. The lower end of the plunger '2 extends down into the path of a pin 7 projecting from one side of a crown wheel 8 which controls the alarm mechanism. As shown in Figs. 3 and a of the drawings, the plunger is provided near its end with an annular notch 9 which is adapt.- ed to be engaged by a. friction spring or stop arm 10 the outer end of which is fastened to the upper portion of the bracket 16, as clearly shown in Figs. 3 and 4t. This friction spring or stop arm serves two purposes: first, to prevent the accidental movement of the plunger and hold it either in its depressed or raised position; and, second, by entering the notch 9 prevents the withdrawal of the plunger, but does not interfere wit-h the downward movement thereof as the plunger in its downward movement rides over the end of the arm, thus permitting the-plunger to be inserted after the clock has been assembled. The plunger may be removed by pressing the tension spring or stop-arm back out of the notch 9 when it is desired to take the movement out of the clock. Instead, however, of providing the arm 10, the upper portion of the plunger may be smaller than the lower end, as shown in Fig. 5 of the drawings, and in case the alarm mechanism is located. at a point considerably below the top of the clock case, requiring a long plunger. a spring finger 14 may be attached to the front plate 15 and so as to bear upon the lower end of the plunger to prevent its accidental movement, this spring servingto hold the plunger in either its depressed or raised position. In this case the plunger will be entered through the ring-head from the lower end, and the button or head 6 subsequently attached.

Instead of having the plunger engage with a pin projecting from one side of the crown wheel, it is apparent, without illustration, that it might engage directly with the teeth of the crown wheel, or the plunger may engage with an arm ll carried by a verge 12 as shown in Fig. 6 of the drawings. It is also apparent without illustration, that this arm instead of being attached to the verge, might be mounted in a verge shaft 13, or it might be the end of the hammer tail. In either case the downward movement of the plunger arrests the operation of the alarm mechanism and prevents. the alarm from sounding, or if the alarm is sounding, may stop the alarm movement.

The foregoing description and illustration will be sufficient to enable others to so arrange a vertically movable plunger in the ring-head as to interrupt or stop the alarm HIQChiUllSlD when desired.

I claim:

1. In an alarm clock, the combination with the case thereof, of a ring-head there for, an alarm mechanism located within the case. a vertically movable plunger mounted in the said ring-head and extending above the same for its manual operation by its upper end and below the same into the cl0ck-case for the engagement of its lower end directly with the crown wheel of the alarm mechanism and a spring co-act-ing directly with the said plunger for holding the same in engagement with the said crown-wheel and out of engagement therewith.

2. In an alarm clock, the combination with a case having a peripheral sheet-metal band, of an alarm mechanism. located within the said case, a bracket secured to one of the plates of the said alarm-meehanism, and extending upward under the said band at the apex thereof so as to. support the same. a ring-head mounted in the said bracket and passing through the top of the said band, a vertically movable plunger extending upward through the said ring-head for being manually operated and extending downward through the said ring-head into the said case to co-act with the alarm mechanism for arresting the movement thereof.

In an alarm clock, the combination with the case thereof, of a ring-head therefor, an alarm mechanism located within the case and having a crown-wheel carr 'iug z stop-pin, a plunger mounted in the said ring-head and adapted at its projecting upper end to be engaged for its manual operation and extending downward at its lower end into the said case and adapted at its lower end to co-act with the said stop-pin, and a spring coa.cting with the plunger for controlling the position thereof.

1.. In an alarm clock, the combination with the case thereof, of a ring-head therefor, an alarm mechanism located within the case. a plunger mounted in the said ringhead, extending above the same for manual operation. and extending dowmvard through the same into the case for CO-RCtlOll with the alarm mechanism for arresting the move ment thereof the lower end of the said plunger being formed with a groove; and a spring entering the groove of the plunger for controlling the longitudinal movementthereof. and preventing it from being pulled out of the said ring-head by its outer end.

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

ELHER l"). CTOC Kl( )N.

lVitnesses lVM. P. llYNDsi n. J. Lanes.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents.

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