US1665987A - Pilot light - Google Patents

Description

April 10, 928. v 1,663,987

J.1Z ShfljTi PILOT LIGHT Filed June 28. 1926 T11 ven z 0 r.

li atented Apr... 10, 1928.

STATES JOHN '1. SMITH, OF SAN FRANCISCO, CALIFORNIA.

PILOT LIGHT.

Application filed June 28, 1928. Serial No. 119,127.

This invention relates to improvements in pilot lights and has particular reference to an attachment for use with heating equipment such as flat irons and the like, wherein a it is desired to indicate the fact that the current is turned on in the iron.

The principal object of this invention is to produce a device ofthis character wherein a pilot light may be quickly attached to the to plug of a heating device which light will be come illuminated as soon as the current is turned on to the heating device.

Another object is to produce a device of this character which is simple in construcno tion, cheap to manufacture and easy to use.

An additional object is to produce alight of this character which will be of small size and, therefore, out of the way.

Other objects and advantages will be a parent during the course of the following escription.

in the accompanying drawing forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

"Figure 1 is a side elevation of an electric plug having my device attached thereto,

Figure 2 is a bottom plan view. of the plug cap showing the customary contact prongs, 12 s Figure 3 is a bottom plan view of my device,

Figure 4 is a bottom plan view of my device attached to the plug cap of Figure 2, taken on the line d-l of Figure 1, and

Figure 5 is a vertical cross section of my dgvice as it appears attached to the complete p ug.

it the present time, it is common to attach. the heating cord such as commonly used plug into the socket, after which the heating device functions There is no manner, however, or determining whether the iron is receiving the current or not. It often happens that an iron may be left turned on for a tong period of time which may either burn out the iron or set fire to the surrounding By providing a pilot light, the eddy observe whether or not the ed on, that is, assuming that an emplo ed. llOfll'l'llldllyll'lg drawings wherein for e of illustration is shown a preiterred embodiment of my invention, the numeral 5 designates the customary screw base the pur nit-1'3. fiat irons and the like by screwing the 11 within which is mounted a threaded memher 12 which forms a light socket within which a bulb 13 may be placed. Au insulated contact 14 is centrally positioned within the screw-threaded member and is connected to a conductor 16.

A similar conductor 17 is electrically connected to the threaded member 12. These conductors are shaped as best illustrated in Figures 3 and 4 and are primarily two flat strips each having an opening. therein, as illustrated at 18 and 19, respectively.

These openings 18 and 19 are adapted to permit the prongs 7 and 8 of the cap to pass therethrough as illustrated in Flgure 4. After this engagement has been made the cap is inserted in the plug in the customa manner, These conductors 16 and 17 wil lie between the cap and the plug, as illustrated in Figure 5, thus holdin the receptacle positioned at one side of the plug and ready for the reception of the bulb 13.

It will be readily understood that when the plug 5 is inserted in an electric socket. current flowing to the heating element will also illumine the bulb 13 through the current flowing from the prong 8 throughthe conductor 16, to the center contact 14, thence through bulb and back through the screw threaded member 12 tothe conductor 17 and to the prong 9.

It will thus be seen that my device accom-. plishes all of the objects above set forth.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim 2- v c 1. In combination with a plug comprising a base and a cap, sald cap having prongs a; meme? 7 ositioned thereon and adapted to enter said ase, a receptacle adapted to be attached to said plug, said. rece tacle having a pair of parallel spaced con uctors secured thereto, 5 said conductors having their free extremities perforated so'as"toiengage the prongs 4 of said cap in such afmanner as to lie in a plane at right angles to said prongs and said conductors being, positioned between 10 said base and said cap.

2. A receptacle adapted to receive a bulb,

said receptacle having a pair of conductors extending therefrom and at right angles to the axis of said receptacle, said conductors lying parallel with each other in such a 15 manner as to have their surfaces of greatest width in the same plane, each of said eonductors having an opening formed in the end thereof for the purpose of permitting said conductors to pass over the prongs of a plug cap in the manner described In testimony whereof I afix my signature.

JOHN T. sMrrn.

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