Abstract: A method and device for honing a workpiece surface to be machined to provide a finished size and surface configuration comprising a honing tool with adjustable honing elements, the elements having a cutting zone and a calibrating zone, and also comprising a guide element with a surface sized to the finished size of the workpiece surface such that on the cutting stroke of the tool the cutting zone performs the cut and the tool is guided by the movement of the calibrated zone through the guide element and the honed surface.

Abstract: Continuity of subsurface formations or beds in the earth between existing wells is investigated. Seismic energy is sent from a seismic source in one of the wells at various selected fixed depths. A number of sensing geophones deployed at selected fixed depths in one or more adjacent wells detect the seismic energy as data. A frequency domain decomposition process is performed on the data in order to determine if any of the formations located between the wells function as waveguides for seismic energy within the frequencies of interest. Those formations exhibiting waveguide properties are indicated as continuous between the wells.

Abstract: A quickly adjustable foaming chamber stem for a foam-applying fire-fighting nozzle wherein the fire-fighter can quickly switch from applying on optimum foam to a stream with an optimum throw. The stem is comprised of a deflector plate and a mixing plate that define a foaming chamber there between, the deflector plate having ducts that, when open, communicate a portion of the liquid and foam-stabilizing concentrate into the chamber to form a foam. The foaming chamber, maintained at approximately atmospheric pressure, forms a small homogeneously bubbled maximum foam through liquid from the ducts striking and reflecting from the mixing plate, causing thereby turbulence and agitation. Surface portions of the mixing plate are inclined to maximize agitation.

Abstract: An affinity type gravity measurement instrument which is composed of material such as wood having a coefficient of thermal expansion. Within an internal cavity defined within the housing is disposed a quantity of liquid and a float partially submerged in the liquid. The liquid and float have low coefficients of thermal expansion. The housing defines an internal temperature compensation cavity receiving liquid upon expansion thereof to thus minimize change in the height of the liquid column and thus change in the position of the float and target response to temperature change. A stem of the float extends through an opening at the upper portion of the housing and supports a target, the position of which is sensed by an eddy current, laser or radar proximity sensor, developing signals which are processed for digital readout and computer processed for mapping.

Abstract: An improved wireline operated oil well dump bailer includes an elongated tool body having a longitudinal bore that extends through the tool body, the bore including a chamber section for carrying cement. A port through the tool body provides fluid communication between the tool bore and the oil well bore. A piston is slidably movable within the tool body between a first position in which the piston seals the port and a second position in which the piston is spaced from the port so that well bore fluid pressure can enter the tool body through the port and communicate with the piston. A trigger carried by the tool body, preferably in the form of an explosive charge which can be activated using the wireline moves the piston away from the first position to the second position so that the well fluid pressure enters the bore and powers the piston to dispense cement from the cement carrying chamber section.

Abstract: A gas fire with coal effect has a gas manifold or box divided into separate gas compartments with gas outlets therefrom and is formed with illumination apertures. The coal effect which is ceramic and has flame apertures therethrough is precisely positioned on the gas manifold or box by locating formation so that the gas outlets and flame apertures are correctly relatively disposed to avoid "sooting".An electric lamp (preferably two) is disposed forwardly and downwardly of, and preferably centrally of, the gas manifold or box and the coal effect to provide an instantaneous "glow" effect when illuminated. This latter effect can be attained with or without flames being present.