US1371366A - Low-liquid-level alarm - Google Patents

Description

W. GRAH.

LOW LIQUID LEVEL ALARM. APPLICATION r1150 OCT. 14, 1920.

Patented Mar. 15,1921,

UNITED STATES PATENT OFFICE.

'WILLIAM GRAB, OF WATERVILLE, OHIO.

LOW-LIQUID-LEVEL ALARM.

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Be it lmown that I, WILLIAM GRAH, a citizen of the United States, and a resident of lVaterville, county of Lucas, and State of Ohio, have made an Invention Appertaining to Low-Liquid-Level Alarms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to audible alarms for use particularly in connection with the liquid containing tanks of automobiles to indicate a predetermined low liquid level condition therein, and the object of the invention is the provision of a simple and improved device for this purpose.

The invention is fully described in the following specification, and while in its broader aspect it is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which,

Figure 1 is a central vertical section of a liquid containing tank equipped with a device embodying the invention, and Fig. 2 is a fragmentary plan view thereof.

Referring to the drawings, 1 designates a liquid tank or container, for instance, the gasolene tank of an automobile, which tank has an opening 2, preferably in its top,

through which the tank may be filled, the opening being closed by a removable cap 3.

In the present embodiment of the invention the cap 3 is provided on its top with an inverted U-shaped member or yoke 4, centrally within which is loosely suspended a bell, gong or other resonant member 5 for free vibratory or swinging movements relative to the cap. The member 5 is swingingly suspended from the yoke 4 in the present instance, by a rivet 6. A plurality of studs 7 are mounted on the top of the plug or closure member 3 in position to have striking contact with the edge of the resonant member 5 when rocked or vibrated, whereby said member is rung or sounded to transmit an alarm. The studs 7 are preferably normally spaced from the edge of the member 5 to permit a free rocking of the member relative thereto.

A float 8 is disposed within the tank 1 Specification of Letters Iatent.

Patented Mar. 15, 1921.

Application filed October 14, 1920., Serial No. 416,852.

for riuing on the liquid 9 therein, and a stem or rod 10 projects upward from the float loosely through a circular opening in the cap member 3 and into the interior of the bell or other resonant member 5. The upper end of the stem 10 is provided, in the present instance, with a head or enlargement 11 of disk formwhich, when the 8 and connected parts will be lowered suf-' ficiently to disengage the resonant member 5 and permit it to be freely rocked or oscillated into or out of striking contact with the studs 7 by the motion or vibratory action of the associated vehicle when running.

It is preferable to dispose the bell carrying member or yoke 1 without the bell so it may serve both as a protection for the bell and has a handle to facilitate a turning of the cap member 3 into or out of its opening. The yoke 4. in the present instance, is shown as having its feet secured to the cap 3 by screws 12. I wish it understood that my invention is not limited to any specific construction, arrangement or form of the parts, as it is capable of numerous modifications and changes without departing from the spirit of the claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is,--

1. The combination with a liquid containing tank mounted for vibratory movements,

of a resonant member carried by the tank for free rocking movements relative thereto, means with which the resonant member when rocked may coact to sound a signal, and means actuated by the rising and falling of liquid within the tank to hold the resonant member inoperative when the liquid is above a predetermined low level position in the tank.

2. The combination with a liquid containing tank mounted for vibratory movements and having an opening in its top portion, a cap for closing said opening, a resonant member carried by the cap for free vibratory movements relative thereto, means carried by the cap for coaction with the resonant member to sound a signal when the resonant member is free to rock, afloat disposed in the tank, and means projecting upward from the float throughrthe "oapaan'dt; adapted to permit a rocking of the resonant member to sound asignal when .thefioat is 1 at a predetermined low level position in the tank and to coaet with 'thereson'ant member to prevent a rocking thereof relative to the cap whenthe float israised from its predetermined low level position. i

" 3. In a vehicle, a liquid eontaining tank having an opening in it top portion, a removable cap for closing said opening and having a yoke member and a stationary stud rising therefrom, a resonant member suspended from the yoke for free svvinging ing from the float to a point Within the resonant member and adapted to permit movement of the gong tosound a signal when liquid'in'the' tank is below a predetermined level andto coaetwith the resoonant member to prevent signalsounding movement th reof when the liquid is ab said level. 1; v v

In testimony whereof @I have hereunto signed my name to this specification.

,WILLIIAM'IGRAH."

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