US1539204A - Time switch - Google Patents

Description

May 26, 1925. 1,539,204

. 'J. 5. PROWENSE TIME SWITCH Filed Jan. 2'7. 1923 Patented May 26, 1925.

UNITED STATES JOSEPH SALVADOR JPMWENSE, OF KANSAS CITY, MISSOURI.

g TIME SWITCH.

Application filed fanuary 27, 1923. Serial No. 615,888.

To all whom it may concern:

Be it known that I, JOSEPH SALVADOR PRoWnNsn, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented new and useful Improvements in Time Switches, of which the following is a specification.

The object of my present invention is the provision of a peculiar and advantageous time switch.

To the attainment of the foregoing, the invention consists in'the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure 1 is a top plan View illustrating the preferred embodiment of my invention which includes a casing and a switch properly arranged-relative to the casing.

Figure 2is a side elevation showing the said casing and the parts carried thereby.

Figure 3 is an enlarged detail vertical section taken on the line 5-5 of Figure 1, but with the watch omitted.

Figure 4 is a diagrammatic view illustrative of a specific use of the time switch which is of general application.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

In the embodiment I have elected to. illustrate, the casing alluded to comprises a body 1 and a cover 2, hinged at 3 to the body 1. In the casingbody 1 are located a transformer 4 and an electric bell mechanism 5, the hammer 6 of the said mechanism 5 being properly arranged relative to a gong 7 dis posed exteriorly of the cover 2 and being adapted to work through a slotin the cover, Figure 3. Also arranged on and carried by the cover 2 is an incandescent electric lamp 9 exteriorly of the cover, and in about the relation illustrated to the said lamp 9 the cover 2 is equipped at its outer side with a conductive plate 10 on which an ordinary watch 11 is adapted to be superimposed after the manner shown in Figure 1, the crystal of the said watch being removed or being swung upwardly from over the dial and the minute and hour hands 12 and 13 of the watch so as to enable the hour hand 13 to cooperate in the manner hereinafter described with the adjustable terminal 14 shown in Figures 1, 2 and 3.

The said adjustable terminal 14 is pivotally mounted to swing horizontally on a post 15 carried by the cover 2, the said post 15 being threaded for the engagement of a nut 16 and being equipped with a coil spring 17 between which and the nut 16 the terminal 14 is interposed as illustrated. In virtue of this construction it will be apparent that the terminal 14 can be positioned at various distances from the conductive plate 10 to accommodate watches of various thicknesses. In the use of this portion of my improvement, the watch 11 is superimposed on the plate 10, the crystal of the watch being removed or being swung at rightangles to the major portion of the watch, and the terminal 14 is turned about its axis so as to position its end 18 at the hour or fraction of hour at which it is desired to actuate the alarm. The minute hand of the watch is adapted to travel above and clear of the terminal 14 but the hour hand of the watch is adapted to bring up against the said terminal and thereby close the electric circuit hereinafter described at the predetermined time. Manifestly because of the adjustable capacity of the terminal 14 the terminal can be readily located in proper position to the watch to assure free movement of the minute hand 12 clear of the terminal 14 while assuring the hour hand 13 bringing up against the terminal 14 so as to close the electric circuit. It will also be readily appreciated that the watch can be readily positioned in various positions on the plate 10 and relative to the terminal 14 to bring about actuation of the alarm at the predetermined time.

By reference to Figure 4 it Will be noted that the electric bell mechanism 5 and the lamp 9 are arranged in parallel and that the primary circuit which maybe a house circuit is designated by 20 while a secondary circuit is designated by 21. Manifestly when at the predetermined time the secondary circuit is closed through the terminal 14, the hour hand of the watch, the watch and the plate 10 in the manner before indicated the electric bell mechanism,5 will be actuated to sound an alarm and at the same time the filament of the lamp 9 will be caused to glow. When the party for whom the alarm is actuated is awakened it is his province to remove the watch from the plate 10 and thereby break the secondary circuit.

My novel time switch is of general application and therefore it is adapted to be used for the sounding of an alarm in the event that a door or a window is opened by a burgiar. For this purpose I employ one or more circuit closers such as shown in Figure at. The said circuit closer comprises an electric body 23, a terminal 24 and a terminal 25. The latter terminal includes a pivoted lever and subject to the action or" a spring stripQT relatively arranged as shown in Figure at. The lever of the said terminal is arranged at the inner side or" the door 28 as shown in Figure 4t, and hence when the door is opened the lever will be swung and the spring strip QT tensioned so that when the lever has been moved beyond a certain point, the spring strip will operate to snap and hold the lever in engagement with the terminal 2%, and in consequence the circuit in which the circuit closer is arranged will be completed through the lever and the spring strip and the terminal 24L as will be readily understood. By reference to Figure a, it will be noted that the wiring in connection with the terminals of the circuit closer designated generally by 30 is designated by 31 and that other wires 32 may be readily connected to the terminals of another circuit closer similar to thecircuit closer 30. It will also be noted from Figure at that the electric wiring is of such character that in the event of the circuit close-r 30 being actuated as described the electric bell mechanism 5 will be actuated to sound an alarm and the filament of the lamp will be caused to glow notwithstanding the hour hand 13 of the watch may be out of contact with the terminal 14. It will be apparent from the foregoing that I have provided a simple and eiticient alarm mechanism, and one that is reliable in operation, is susceptible of being expeditiously and easily set, and is free of delicate parts such as are likely to get out of order after a short period of use.

I have entered into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a full, clear and exact understanding of the said embodiment. I do not desire, however, to be understood as confining myself tothe specific construction and relative arrangement of parts inasmuch as in the future practice of the invention various changes and modifications may be made such as fall within the scope of my invention as defined in my appended claims.

Having described my invention, what I claim and desire to secure by Letters Patcut, is

l. The combination of a conductive plate adapted for the removable arrangement in superposed position thereon of a watch, a terminal mounted in spaced relation above the conductive plate and adapted to coope ate with a watch hand for the closing of a circuit at a predetermined time; the said terminal being mounted to swing about an axis. and being adjustable toward and from the conductive plate.

2. The combination of a conductive plate adapted for the arrangement thereon of a watch, and a terminal mounted in spaced relation to the conductive plate and adapted to cooperate with a watch hand for the closing of a circuit at a predetermined time; the mounting of the terminal including a threaded post about which terminal is adaptedto turn, a spring about said post and interposed between the terminal and an abutment, and a nut mounted on the post and arranged at the opposite side of the terminal with reference-to the spring.

In testimony whereof I affix my signa ture.

JOSEPH SALVADOR PROWENSE.

Images