Abstract: A body of foam rubber overlies a generally cylindrical rim of the wheel of the assembly. A tread rubber body has a central section that overlies the outer surface of the tread rubber body. Side sections of the tread rubber body extend angularly from its central section and overlie opposite sides of the foam rubber body. The foam rubber body is bonded to the rim of the wheel assembly. A central section of the tread rubber body is boned to the outer surface of the foam rubber body. Opposite side sections of the tread rubber body are bonded to opposite sides of the foam rubber body, and may also be bonded to opposite edge portions of the wheel rim. The side sections of the tread rubber body reduce the possibility of foam rubber being ejected from the sides of the foam rubber body, and also reduce outward expansion of the bodies due to centrifugal force.

Abstract: A well probe including two offset shoes fixed outside of a tubular column and an intermediate shoe provided with a central passage having a cross section larger than a cross section of the column. The intermediate shoe is connected to a lower offset shoe by a mobile hasp. A mobile harness is adapted to be moved into and out of a lateral cavity of the intermediate shoe for enabling coupling and uncoupling of the intermediate shoe with a wall of the well. The mobile harness includes a casing for accommodating sensors and a hydraulic triggering arrangement, with the sensors and the hydraulic triggering arrangement being connected to a surface installation by cables and an electronic cartridge.

Abstract: The apparatus comprises a rectangular frame (20) disposed horizontally, which is fixed to the forks (25) of a lift truck. Gates (29) depend downwards from the sides of the frame, and each gate carries a pad (32). When the gates are operated hydraulically the pads clamp a pallet-sized layer (43) of cardboard cases (36) therebetween. Other layers of cases resting on the clamped layer may be picked up along with the clamped layer. The layer is clamped on all four sides, and the pads are long enough that no bottle (38) can "escape" the clamping force. The apparatus allows a high clamp force to be used, without the danger of damaging the cases or bottles.

Abstract: The invention relates to a water-soluble demulsifying and antifouling agent capable of separating possibly emulsified water/hydrocarbon mixtures, and particularly water/crude petroleum mixtures containing suspended matter.Said agent comprises from 10 to 60 percent by weight of a combination of the following compounds:at least one quaternary tetraalkylammonium halide; andat least one polyalkyloxylated alkylenediamine or its sulfate.

Abstract: A robotic camera dolly system includes a motorized dolly which rolls freely across a studio floor under computer control, the dolly carrying a camera. Targets are provided on the floor at various locations from which camera shots are to be taken. The dolly is moved from one target to the vicinity of another target according to a learned sequence of movements controlled by a remote dolly computer. The learned sequence of movements is taught with the aid of a joystick, and the motions are replayed based on dead reckoning. In order to correct translational and angular errors in the position of the dolly at the destination target, optosensors are provided on the dolly for use in detecting and reorienting the dolly relative to the destination target. The open loop control of dolly movement can be taught with a control stick and the motions replayed based on dead reckoning.

Abstract: The invention relates to a process for the preparation and activation of a catalyst, comprising a stage of fabricating a support consisting at least in part of at least one refractory oxide mineral, a stage of depositing on the support at least one metal from the platinum group, and a stage intended for forming on the support at least two metal halides of the Lewis acid type. Between the deposition of the metal halides of the Lewis acid type and the utilization of the catalyst in the reactor, the catalyst is subjected to an activation stage by being maintained in an acidic and nonoxidizing or reducing medium at a temperature between 300.degree. and 475.degree. C. so that its final content of a promoter metal of the zirconium, molybdenum tungsten or titanium type ranges from 0.15 to 1 percent, based on the weight of the support.

Abstract: The invention relates to an apparatus which comprises a plurality of tubes made of a first material, which tubes are mounted inside a cylindrical body or shell made of a second material, which second material undergoes differential thermal expansion in relation to the first material of the tubes. The tubes are rigidly secured by their ends to two end members, at least one of which is a floating member due to the fact that it is connected to the shell by means of a flexible ring gasket. The flexible ring-type gasket has inner and outer edges which are clamped to the floating member and to the shell, respectively. The inventive apparatus is useful, for example, in the ultra filtration separation of fine catalyst particles which are in suspension in a hydrocarbon feedstock which feedstock comes from a catalytic cracking unit.

Abstract: A method for sanitizing swimming pool water comprises introducing in controlled amounts, a bromide donor and an oxidizing agent therefor to provide the desired sanitizing action in the pool, measuring the levels of both active bromine and bromide in the treated water and regulating the quantity of materials introduced into the pool accordingly.

Abstract: A reducer seal assembly for providing a fluid-tight through-wall fitting. The seal includes a substantially rigid tubular supporting member having a flange extending radially about one edge. The flange and the interior of the supporting member are covered with resilient material. The supporting member is externally threaded so that a nut may be joined thereto. The resilient member coating the flange of the support member may be curved to conform to a convex wall surface. The resilient member extends beyond the supporting member for connection about a conduit extending through the wall. The assembly is connectable to a wall by first inserting the support member through a wall from the exterior side and then the nut is applied to the threaded portion of the support member to the extent that the resilient coating has compressed to form a fluid-tight seal between the coating and the exterior wall surface.

Abstract: The invention comprises a method and an apparatus for the waste disposal of light and/or medium and/or heavy foams employed in connection with fire extinguishing or the like. The foam is sucked in by a blower or the like, is disintegrated and in the following, is concentrated in a following container. The larger part of the air is thereby separated from the foam and the foam is reduced in a further-following separating stage to the volume of the initially employed foaming agent water mixture. The separating stage can be a centrifuge or a cyclone. Upon waste disposal of a low foamed heavy foam, this heavy foam is sucked up with a pump and in the following the pump is separated. In both cases following, the mixture is fed to a further waste disposal stage.

Abstract: A diagnostic system coupled to a programmable logic controller (PLC) via a serial data link monitors the operation of apparatus under the control of the PLC. Upon detection of a first event-initiating signal, a central processor unit (CPU) in the diagnostic system initiates a timer. The CPU then awaits receipt of a second confirming action signal representing completion of the event initiated by the first signal. The timer times out after a predetermined time interval determined by an operation parameter of the controlled apparatus. If the second confirming action signal is not received before the timer times out, the CPU provides an alarm signal to a video display such as a cathode ray tube (CRT) for displaying an alarm message.

Abstract: The invention relates to a method for marine seismic prospecting, of the type in which a seismic wave is emitted at a determined point close to the surface of the water and the waves reflected by the interfaces between geological formations of the subsoil are recorded as a function of time using receivers arranged at a plurality of locations close to the surface of the water. A mathematical model of multiple signals and peg legs is produced from known wave equations. Data calculated using the mathematical model M(t,x) are adapted with polynomial transfer functions and are subtracted from the data recorded by each of the sensors in order to obtain final data. Using the final data, a graphic representation is prepared of the geological formations of the subsoil in which the seismic wave is propagated.The invention proposes mathematical processing of the data enabling the elimination of multiple signals and peg legs.

Abstract: This invention relates to a process for the separation of fine catalyst particles from a hydrocarbon feedstock coming from a catalytic cracking unit by filtration through mineral barriers and a filtration loop.The process consists of filtering the feedstock through mineral barriers that are resistant to heat and have a porosity adapted to the minimum diameter of the particles to be retained. The porosity is generally between 0.1 and 100 microns.

Abstract: A method and device for detecting inversions of the earth's magnetic field by taking measurements in a drill shaft. The device includes a first probe used to measure the magnetic induction B.sub.1 during its movement in the shaft, a sensor to measure magnetic induction B.sub.2 on the surface of the ground at a stationary point at the same time as B.sub.1 is measured, a second probe to measure magnetic susceptibility X of the rocks as it moves through the shaft, and a data-recording and data-processing unit. The data-recording and data-processing unit further includes a device for calculating a value of B.sub.1 -B.sub.2, filtering the calculated value to isolate the induction fraction B.sub.L, which is only composed of a component B.sub.I resulting from an induced magnetization, and the component B.sub.R resulting from the residual magnetization. The induction B.sub.I based on the induction B.sub.1 in the shaft and on the magnetic susceptibility X can be calculated.

Abstract: The invention relates to a process for the sweetening of a petroleum fraction in a fixed catalytic bed in the presence of an oxidizing agent, by catalytic oxidation of the mercaptans which it contains, in the presence of a catalyst in the form of a support impregnated with a metal chelate and in the absence of an aqueous base, the water content of the support is maintained within a predetermined range of values by action on the solvent power of the feedstock for the water of the support as a function of temperature.

Abstract: The process for measuring the coefficients of adhesion and friction of a drilling fluid involves, following the standardized filtration of the drilling fluid or mud from which a solid phase "filtration cake" and a liquid phase or filtrate collected on the downstream side of a filter 15 are obtained, placing a metal piston skirt 29 in contact with a filtration cake in the presence of a contact pressure, and measuring the moments of adhesion and friction when the skirt is driven in axial rotation perpendicular to the contact surface, and the axial extraction or contact adhesion force when the skirt is withdrawn after a determinate period of contact.

Abstract: Inflamed skin conditions caused by plants belonging to the same genus, namely, Toxicodendron and in particular, poison ivy or poison oak (T. radicans), poison sumac (T. vernix), insect bites and acne, all of which are characterized by the presence of an oily exudate of either external or bodily origin are treated by the topical applications of N-methylpyrrolidone to affected areas of the body. The N-methylpyrrolidone can be applied per se, or in a solution or dispersion thereof in one or more pharmacologically compatible carriers.

Abstract: A sump riser apparatus for a pipeline system includes a hollow sump base including a upstanding annular portion disposed on an upward surface thereof in surrounding relation to an opening formed in that surface. A hollow detachable riser extension is mounted on the sump base and is of a size and shape, relative to the sump base, such that, when the riser extension is inverted, the riser extension can be received within the sump base for storage therein during transportation of the parts. The riser extension includes a cover and an annular step portion at the base thereof which fits over and around the upstanding annular portion of the sump base. The step portion is of a size and shape relative to the cover so as to enable receipt of the cover therein when the riser extension is inverted.

Abstract: A process for converting residual oil comprising vacuum bottoms in the presence of a cracking catalyst of high surface area and comprising an ultrastable zeolite is described. More particularly, a conversion process particularly contributing to producing cycle oil and gasoline boiling range products with reduced carbon deposition in combination with a relatively high regeneration temperature operation of at least 1350.degree. F. and above, and a short contact time riser hydrocarbon conversion operation contributing to reducing slurry oil product in favor of lower boiling products is described. A fluid cracking catalyst comprising a special ultrastable crystalline zeolite of high silica to alumina ratio provides hydrothermal stability of acceptable tolerance in the environment employed.