US1207655A - Annunciator. - Google Patents

Description

Patented Dec. 5,1916.

A 2P E 1.9 A IIIIMIE H. A. STEVENS.

ANNUNCIATOR.

APPLICATION FILED JAW. 3. 1916.

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" UNITED sTATEs PATENT OFFICE.

HARVEY A. STEVENS, BUFFALO, NEW YORK.

AN NUN CIATOR.

To all/whom t may concern.'

Be it known that I, HARVEY A. STEVENS, a citizen offthe rUnited. States, residing at Buffalo, in the county of vErie and State of New York, have invented new and useful Improvements in' Annunciators, of which.

the following is a specification.

My invention pertains to annunciators; and it contemplates the provision of a sim- !0 ple kand inexpensively installed annunciator, constructed with a `view to making known to avperson in authority when gasolene or other liquidin a tank is dangerously low.

The annunciator is also, by preference, constructed with a view to enabling the person in authority `to ascertain, whenever necessary, the amount of gasolene or other liquid in the tank.

With the foregoing in mind the invention l) in all ofits details will be fullyy understood from the following description and claim when the same are read in connection with the drawings, accompanying and forming part ofthis specification, in which:

, I6 Figure 1 is a .view showing in diametrical section a tank equipped with my improvement and also showing diagrammati'cally a normally-open electrical circuit in whichmy improvement is arranged. Fig. 2 is a detail plan of a portion of the tank top. Similar numerals of reference'desi corresponding parts in both views o drawings.

In the present and preferred embodiment 85 of my invention the tank 1 is .provided in its top with a threaded aperture 2 which may be used if desired, as the filling aperture, and which is normally closed by a threaded ,and removable .plug 3. .The said plug is chambered, as indicated by 4, and anged as indicated by 5, and to the said iiange of the plug is attached by screws 6 a plate 7 in which1s a central aperture 8 and lone or more vent apertures 9; the latter being provided in order to permit fumes to escape from `the tank and in thatr way lessen the liabilityof an explosion. It willV also be observed that from the bottomwo'f the plug chamber a guide tube 10 depends; said guide tube being connected with the plugin any vmanner compatible with the purpose of my ate the invention.- Pivoted at 11 on the plate 7 is a vclosure plater 12, having a finger-piece 13 whereby when desired the closure plate can beswung from over the apertures.

Specification of Letters Patent. Patented Dec, 5, 1916,

Application med January 3, 1916. Serial No. 69,900. `Y

Movable vin the tank `is a float 14, the stem 15 of which is carried upwardly through the tube 10 `and intothe chamber of the plug and terminates at its upper end in a contact button 16.

Arranged in and electrically isolated from the -plug 3 is a terminal plate 17, designed and adapted to coperate with the button 16 in closing a normally-open electrical circuit and actuating a signal when the supply of gasolene in the tank is almost exhausted. Any suitable circuit arrangement may be' resorted to, such, for instance, as the one illustrated in which a conductor 18 leads from the plate 17 to theplus pole of a source 70 of electric energy 19, the negative polev of which is connected through a conductor 20 with an audible or visible signal 21 which, in turn, is connected through a conductor 22 with the tank 1. Thus it will be manifest 75 that when the button 16 contacts withthe plate 17, the circuit will be completed and the signal or annunciator21 actuated to apprise the person in authority of the low stage of gasolene vor iuid.

`When deemed desirable, the conductor 22, instead of being connected to the tank 1, may be connected to a terminal 23 arranged on but insulated fromthe terminal 17 and designed to contact `with the button 16 when 85 the latter is in contact with a projection 24 on terminal plate 17.

v When at any time the person in authority desires to ascertain the quantity of gasolene in the tank, it is simply necessary for such `person to swing the plate 12 from overthe aperture- 8, whereupon the stem 15 will be raised by the ioatV 14 through the aperture 8, and will indicate the quantity of gasolene in the tank.

My -improvement is designed especially for use on motor vehicles, but is obviously designed to be used to advantage in other connections.

movable means 1s displaced and also having means on the stem and movable in the chamber of the plug and adapted to contact with 10 said terminal.

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

HARVEY A. STEVENS.

AARON DUvAu., Lnux H. Rxcnnnsolv.

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