US240090A - chase - Google Patents

Description

(No Model.)`

W. K. CHASE.

Alarm Glock.

No. 240.090. Patented April 1'2, 188|.

l m... TELIIII UNITED STATES PATENT OFFICE.

WILLIAM K. CHASE, OF MANDARIN, FLORIDA.

ALARM- CLOCK.

SPECIFICATION forming part of Letters Patent No. 240,090, dated April 12, 1881.

Application filed February 21, 1881.

To ZL lwhom t may concern Be it known that I, WILLIAM KENDRICK CHASE, a citizen of the United States, resid ing at Mandarin, in the county of Duval and State of Florida, have invented new and useful Improvements in Attachments for Clocks, of which the following is a speciiication.

The object of the present invention is to provide an attachment for clocks which will give warning, by the ringing of a bell or display of a sign al, whenever the clock needs windin g up, and also when, during the winding operation, the motor-spring is sufficiently strained, thus avoiding all danger of accident.

The invention consists in the combination, with the motor-spring or actuating devices of a clock, of-an alarm or signal mechanism comprising a wheel or pulley carrying two movable tappets, a cord connected with said wheel and with the shaft or arbor of the main wheel of the clock, and an arm or rod adapted for engagement with the tappets and connected with a bell or other audible or visible signal.

In the drawings, Figure 1 is a face view of my alarm mechanism and the main wheel, motor-spring, and pendulum of an ordinary clock. Fig. 2 is an end elevation, showing more fully the manner of connecting my alarm mechanism With the arbor of the motor-spring of an ordinary clock. Fig. 3 is a detail View, showing the position of the tappet when engaging with the bell-actuatin g rod. Fig. 4t is a similar view, illustrating the tappet disengaged from said bell-actuating rod.

The letter A designates the main wheel of an ordinary clock, and I3 is the coiled motorspring fitted on the winding-arbor C. These parts constitute the actuating devices of an ordinary clock. The winding-arbor C receives a cord or chain, D, which extends in a downward direction and passes around the periphery of a wheel or pulley, E. This wheel is journaled in a suitable frame, F, which is arranged in any suitable position within the clock-casing, although I prefer to locate it at the right of the pendulum K and in rear of the same. The shaft G of the wheel E carries a coiled spring, H, the outer end of which is secured to the frame F and the inner end to said shaft G. The wheel E has two oppositely-lo- (No model.)

cated arms, I, which extend beyond the periphery thereof and carry the pivoted tappets J J. These tappets are fitted in the forked ends of the arms I, andare free to swing therein, for the object hereinafter stated. The wheel E and its tappets are arranged in proper relation to a horizontal rod or arm, L, which is free to slide in suitable guides or keepers within the clock-casing, and is connected with the vertical spring-arm M of a bell, N. The rod L has a V-shaped or angular bottom projection, O, which serves as a stop for the tappets and causes a movement of said rod either to the left or right for sounding the bell or alarm.

The operation of the devices above described is as follows, viz: The act of winding up the motor-spring of the clock will cause the cord connected with the winding-arbor to be wound around said arbor and effect a partial revolution of the wheel or pulley E to the left. The main wheel and spring of the clock and the wheel or pulley E are so proportioned that when the spring is sufficiently wound np the tappet J is brought around to the projection of the arm or rod L, so as to cause a movement of the latter to the right, and thus effect the ringing of the bell, which gives notice to cease winding, because the spring has been sufcien tly strained. The windin g of the cord on the mainspring-arbor of the clock has also caused the compression of the spring II of the wheel E. Thus it will readily be understood that when said cord is loosened or unwound from the mainspring-arbor the wheelE is gradually made to turn to the left by the expansive force of the spring H, and when the tappet J reaches the stop or projection on the bell-aetuating rod it will push the same to the left and sound the proper alarm for giving notice that the motor-spring of the clock requires winding up. The spring H serves to carry the tappet J beyond the projection on the bellactuating rod, so as not to arrest the movement of the clock mechanism. This result is permitted by the use of a tappet, which, after it has exerted its proper pushing force, turns on its pivot or passes beyond the projection on the rod, as is shown in Fig. 4.

I have in the present instance illustrated a IOO bell or audible alarm; but it will be obvious that I may make use of a visible signal, the display of which is effected by the devices heretofore described.

Although the same bell which strikes the hour may be employed, I preferably use a distinct bell, which differs in sound and is eapable ot' ringing repeatedly by the vibrations of a spring attaching arm.

Heretofore an alarm has been connected with a clock mechanism in such manner as to sound the alarm when the clock requires rewinding; and such, broadly, I do not claim. Neither do I claim a Watch in which a pointer is rotated by the Winding mechanism and arranged to co-operate with a dial in order to indicate When the Watch requires rewindin g and when it is Wound up.

What I claim is- 1. The combination, with the actuating mechanism of a clock, of an alarm or signal disconnected from and independent of the clockactuating mechanism, and devices, such substantially as described, connected with the winding-arbor of the clock and arranged t0 operate the alarm or signal at predetermined intervals, to indicate both when the clock requires rcwinding and when it is sufficiently Wound, as set forth.

2. The revolving wheel or pulley carrying movable tappets, and having a coiled spring` and a cord or chain, and the sliding` rod 0r arm connected with a signal device, in com bination Wit-h the mainspring-arbor 0f a clock, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM KENDRIGK CHASE.

Witnesses:

ALBERT H. Noums, JAMES A. RUTHERFORD.

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