US494966A - Circuit-closing clock - Google Patents

Description

(No Model.)

H. S. PAGE. CIRCUIT OLUSING CLOCK.

Patented Apr. 4, 1893.

MIT (-1551 as.

UNITED STATES PATENT Enron.

HERBERT S. PAGE, OF MEDFORD, ASSIGNOR TO EDMUND D. SPEAR, OF

BOSTON, MASSACHUSETTS.

ClRCUlT-CLOSlNG CLOCK.

SPECIFICATION forming part of Letters Patent No. 494,966, dated April 4:, 1893.

Application filed October 3, 1892.

To all whom it may concern:

Beitknowu that I, HERBERT S. PAGE, acitizen of the United Statea'and a resident of Medford, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Clocks, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention has for its object to provide a novel, simple, and efficient clock for a closed electric circuit to sound an alarm, or open or close gates of any kind, or otherwise perform any work at predetermined times for which the clock work mechanism may be sent.

To accomplish this object my invention involves the features of construction and the combination or arrangement of devices hereinafter described and claimed, reference being made to the accompanying drawings, in which,

Figure 1 represents an interior front view of the improved clock mechanism, the dial of which is shown as removed. Fig. 2 represents a front elevation of the clock and its connection to the battery and alarm or other devices in the circuit; and Fig. 3 represents a crosssection on the line 33 shown in Fig. 1.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

A represents the inclosing case of the clock to which are attached in a suitable manner the binder posts a, a and a".

B is the frame of the clock mechanism, which frame is preferably made of metal and metallically connected by means of a wire 0 to the binder posts a as shown in Fig. 1.

D and D are main driver springs as usual by means of which rotary motion is imparted to the main gears and d and the respective hour, minute and second hands E, E, and e as is common in clock mechanisms.

f and g are spindles supported independent of the usual spindles of the hour, minute and second hands, and provided with gears f and g which are positively geared in any suitable or well known manner to any of the gears in the clock movement so that said spindles rotate in opposite directions; in practice I profor to gear each of the spindles f, g, in such a Serial No. 447,612. (No model.)

manner as to move one half as fast as the spindle for the hour hand E, but this is not essential as if so desired such spindles f, g, may be geared so as to move equally with the hour hand E. On the spindle f is adj ustably secured a sleeve F provided with a cam-disk F having a tooth or projection F" on its circumference as shown in Figs. 1 and 3.

F is a preferably notched metal bar or block which is held in contact with the cam F by means of a spring F attached in one end to the frame B as shown in Fig. 1. As the cam projection F passes by the lower end of the spring pressed bar F the lower end of the spring F is brought in metallic contact with the insulated electrode f" which is secured in a suitable manner to a block or sheet H made of hard rubber, fiber, or other suitable insulating material which is secured to the frame B or other stationary part of the clock mechanism.

f is a wire leading from the insulated electrode f" to the binder post (6 as shown in Fig. 1; to the sleeve F is attached the hand or pointer f adapted to be adjusted in position relative to the graduated scale f on the clock face I as shown in Fig. :2. Similar and corresponding parts G, G, G", G G g, g g and g are used in connection with the spindle g and the binder post a" as shown in Fig. 1.

K is the battery, one pole of which is connected to the binder post to, its wire 6 and frame B by means of the wire 71; shown in Fig. 2.

L and L represent the electrical alarm or other electrically operated devices which are connected to the respective binder posts a and a." by means of the wires Z and Z as shown in Fig. 2. The opposite poles of the alarms, &c., L, L, are connected together and to the battery K by means of a wire Z also shown in Fig. 2. It will thus be seen that by adjusting and setting the respective hands f 9 and their cam disks F, G, for the respective times desired, the current through the respective alarms or other electrical devices .Will be closed as the cam-projections F, G pass by the respective spring pressed blocks F G thus causing said alarms to be actuated at any desired preconceived time or times.

Having thus fully described the nature, cony the binding post a, and an electrical device L, a spring pressed block F carried by the frame in the clock case, a spindle f supported independentof theusual hand spindles of the clock,

and a sleeve F mounted on said spindle and c provided with a cam disk F having a cam projection F, substantially as described.

2. The combination with a clock case A, a fraineB arrangedtherein and supporting time mechanism which comprises main gears d, d and main drivers D D, the spindles f and g supported independent of the usual hand spindies of the clock, rotated in opposite directions by the time mechanism, and provided respectively with sleeves Frand G having cam disks F and G provided with cam'projections F" and G", the insulated electrodes f" and g", the spring blocks F and G a battery in a circuit electrically connected to the clock 3. The combination with a clock mechanism,

of spindles f and g supported independent of the usual hand spindles of theclock mechanism and rotated in opposite directions thereby, the sleeves F and G mounted respectively on said oppositely rotating spindles and provided with cam disks F and G having cam projections F and G", the spring pressed blocks F and G arranged to be respectively operated by said cam disks, the insulated electrodes f" and 9" adapted to respectively make contact with the spring-pressed blocks, a battery in the circuit electrically connected to the clock frame, and wiresleading from said battery to and through electrical devices and to the insulated electrodes, substantially as described. I

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 10th day of September, A. D. 1892.

' HERBERT S. PAGE.

Witnesses:

ALBAN ANDREN, GEORGE F. PIPER.

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