Abstract: This device provides a method of automatically extinguishing a fire that may occur in a chimney and it contains an indicating flag that rises when the extinguishing fluid has been discharged onto a fire in the chimney, upon which it is installed. The device includes an elongated and refillable container that is mounted in the top of the chimney, and it further includes a deflector at the bottom, which will create a spray effect when the fluid strikes it.

Abstract: A flow indicator for a positive displacement pump is connected to a liquid supply reservoir below the liquid level in the reservoir. The indicator has a first passage through which liquid is supplied from the reservoir to the inlet of the pump. The first passage has an inlet below the liquid level in the reservoir and an outlet coupled to a supply conduit in turn coupled to the pump inlet. A restrictor is positioned in the first passage adjacent the inlet to partially restrict fluid flow through the passage. A secondary passage is coupled in fluid communication with the first passage downstream from the restrictor. A transparent tube is coupled to the secondary passage and extends upwardly alongside the reservoir to a location above the liquid level in the reservoir. A float is slidably positioned in the transparent tube.

Abstract: An outdoor well depth indicator including a sleeve vertically slidable along a pipe extending above the well house and connected by a line to a float on the surface of the water in the well. The indicator sleeve can be seen from a distance and from any direction around a well. Also disclosed is a cutoff system for terminating a supply of water from the well when the level of water in the well reaches a minimum desired level, without immediately shutting off the pump motor.

Abstract: A float is disclosed for use in tank gauging systems of the type having a vertically supported guide. The float includes a donut-shaped body member adapted to be positioned about the guide to ride freely with the liquid surface. A discharged tube is positioned concentrically with the body member by a number of support members. The discharge tube is positioned below the liquid surface and acts as a discharge electrode to maintain the path of least resistance for an electrostatic discharge of the float below the liquid surface.

Abstract: Apparatus for measuring changes in volumetric content of a storage tank having a predetermined relationship between changes in liquid level and the change in volumetric content. The apparatus includes a tape windable onto and off a reel co-acting with a counterweight. The tape has means at spaced intervals along a selected portion of the length thereof consisting of performations or, alternatively, at least one notched edge driving a digital counter through a drive pulley. The means at spaced intervals on the tape positively drives the counter with a controlled amount of slip between the tape and the counter driving mechanism corresponding to predetermined non-linear relationships that may exist between the float movement and volume change whereby there is a direct reading of changes in volumetric content of the storage tank throughout the entire extent of travel of the tape.

Abstract: Liquid level indicating floats which may be used, for example, to measure the level of gasoline in a fuel tank or to monitor the flow of fuel through a carburetor. In one embodiment, the float comprises a generally cylindrical body portion which terminates in an outwardly protruding cylindrical ledge having an upper surface and a lower surface, the ledge having a predetermined thickness. A supporting arm is provided which includes a loop which engages the lower surface and an elongated end portion extending from the loop which engages the upper surface of the ledge to secure the supporting arm of the float. In another embodiment of the invention, the float comprises a cylindrical body portion having two chordal grooves cut therein to allow for insertion of a loop having linear portions, the linear portions adapted to engage the chordal grooves.

Abstract: Percolation testing apparatus comprising an elongated guide rod having one end to be driven into the bottom of a test hole for simple and sole support of the rod along which a gauge rod is slidable by means of guide brackets on the latter and a scale strip is attached to the upper end of said gauge rod for vertical movement relative to a reference marker supported adjustably upon the upper portion of said guide rod. A float is connected to the lower end of the gauge rod for floating movement vertically in the test hole to move the scale strip relative to the reference marker which is stationary on the guide rod.