US1106281A - Time-switch. - Google Patents

Description

M. UHIAVETTA.

TIME SWITCH.

APPLICATION FILED APRJQ, 1913.

2 SHEETS-SHEET l.

Patented Aug. 4, 1914,

M. CHIAVETTA.

TIME SWITCH.

APPLICATION FILED APR. 19, 1913.

1,106,281, Patented Aug.4, 191 i 2 SHEETSSHEET 2.

awe/MM 1/6272 Q62 amen,

Gum,

MICHAEL CHIAVETTA, OF NEW YORK, N. Y.

7 TIME-SWITCH.

Specification 0': Letters Patent.

Patented Au". 4, 1914.

Application filed April 19, 1913. Serial K0 762392- To all whom it may concern Be it known that I, MICHAEL CHIAVETTA,

a citizen of the UnitedStates, residing at New York; in the county of New York and State of New York, have invented new and useful Improvements inTime-Switches, of which the following is a specification.

This invention relates to improvements in time switches and has particular application to a switch of this type for illuminating signs and other advertising devices intermittently for a predetermined interval of time.

' In carrying out the present invention, it is my purpose to provide a time switch of the class described whereby the lamps of advertising signs and the like may be illuminated for a predetermined period and the fiow of current to the lamps interrupted during such period so as to alternately make and break the circuit thereby slashing the lamps. It is also my purpose to provide a time switch which will embrace the desired features of simplicity, efficiency and durability and which maybe installed and maintained at a minimum cost.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth inand falling within the scope of the claim. I

In the accompanying drawings; Figure 1 is a view in elevation of a sign equipped with my present invention. Fig. 2 is a longitudinal sectional view therethrough showing the relative positions of the lamps and the flashing switch. Fig. 3 is a diagrammatic view showing the connections between the switch and the lamps of the sign, and Fig. 4 is an enlarged detail view showing the means whereby the lamp circuit is interrupted.

Referring now to the accompanying drawings in detail, the numerall designates asign constructed of any suitable material and having a transparent front wall carrying suitable advertising indicia. Arranged within the sign and suitably secured to the base thereof are a number of lamp sockets 2, two of such sockets being shown in the present instance, and in each socket is disposed an electric lamp 3.

My'improved time switch is suitably secured to the base of the sign 1 and convenientlylocated with respect to the lamps 3 and in the present instance, embodies a clock gear train 4 including a main spring 5, an escapement wheel 6 and the usual alarm mechanism.

7 designates the tapper of the alarm mechanism and in accordance with the present invention this tapper is in the form of a movable contact and is nnder'the control of the escapement wheel 8 of the alarm mechanism, and a power spring 9 for imparting movement to the escapement wheel when the arborof the gear train has rotated for the prescribed period of time, as will be readily understood. Suitably secured to the base of the sign at one extremity of the path of movement of the contact 7 is a binding post 10 andto this bindingpost is connected one terminal of a wire 11 forming one.

side of an electric circuit, Secured to the base of the sign below one of the transmitting wheels of the gear train and extending upwardly from such base are spring contact strips 12 having the upper ends thereof spaced apart and disposed in the path of movementof the spokes of the respective gear wheel and each Contact strip is con nected to one side of the socket of one of the lamps by way of a wire 13, while to the opposite sides of such sockets lead Wires 11 terminating in a connnon conductor 15 forming with the wire 11 the circuit for the lamps.

In practice, the main spring of the gear train is wound or'put under tension so that the gear train will operate and the circuit composed of the conductors or wires 11 and 15 connectedto-a suitable source of power. I

.clock gear train controlling the, contact strips 12 rotates, the spokes of such" wheel engage or ride over the strips 12 successively thereby intermittently closing the circuit to the lamps successively and flashing the sign. The contact 7 is des gned to be released at a predetermined or set time, such time being determined by the devices commonly employed in alarm clocks. When the arbor of the clock train has rotated for the interval of time determined, the contact is swung out of engagement with the binding post 10 thereby breaking the circuit.

From the foregoing description taken in Ltd connection with the accompanying drawings, the construction, mode of operation and "manner of emplbying my improved automatic time switch will be readily apparent,

It will be seen that l have provided a time switch whereby the flow of current to a number of electric lamps, in the operation of the switch, will be interrupted and the lamps intermittently illuminated successively, while such circuit will be completely broken when the switch has operated for the determined period of time.

While l have herein shown and described one preferred form of my invention by way of illustration, I desire to have it understood that I do not limit or confine myself to the precise details of construction, herein described and delineated, as modification and variation may be made within the scope or the claim and without departing from the spirit of the invention.

' I claim: I

The combination with an electric circuit and a number of lamps connected in multi- Liodaei ple therewith, of a time switch located in said circuit and controlling said lamps, said switch comprising a clock gear train, contacts each connected to one side of one of the lamps and disposed in the path of movement of the spokes of one of the wheels of said gear train, said contacts beingspaced apart whereby in the movement of the respective gear wheel the flow of current to the lamps will be interrupted and the lamps-in MICHAEL orrravn'rra.

i/Vitnesses ,NUNZIO A1. BRUNO,

SALVATORE D. MARCO.

Images