Abstract: A method and apparatus for separating oil from water in a raw mixture in which the mixture enters a separator tank having within it electrodes to which an A.C. voltage is applied to cause separation of the oil and water. In one embodiment, two sets of electrodes extend to different lengths in the tanks with a high voltage being applied to the shorter electrodes and a low voltage to the longer. A valve can be disposed in the water outlet pipe to be opened to drain water whenever the sensed conductivity near the tank bottom exceeds a given value. The tank can be immersed in a larger tank and can be provided with porous walls through which the raw mixture enters and the separated oil and water leave. The electrodes can comprise a center electrode and a plurality of high voltage electrodes disposed about said center electrode with a high voltage then applied between said center electrode and the circumferentially disposed electrodes.

Abstract: A mobile crane in which the front section of a lower carriage is provided with first fluid storage container, and in which an upper carriage has a first end section with an operator's stand and a second end section with second fluid storage container. A pump is provided which is operable by motor which may also form at least a part of the drive for the crane. This pump is adapted to pump fluid from the first fluid storage container to the second fluid storage container to serve as counterweight during hoisting operations of the crane. When the crane is to be moved over roads, the fluid from the second fluid container can selectively be released to the first fluid container for equalizing axle loads.

Abstract: A method of pulse-echo ultrasonic examination of an object particularly in medical diagnostic examination, comprises the stepwise increase of the gain of the equipment to compensate for loss of energy as echoes are received from reflecting surfaces deeper within the object and cyclic alteration of the gain at each step.

Abstract: A material spreader for the uniform distribution to the soil or to vegetation of particulate material such as fertilizers, pesticides or seeds. The material spreader comprises a hopper for particulate material adapted to be advanced along a given direction, the hopper including an outlet for discharging the particulate material downwardly, an impeller in association with the outlet for broadcasting the discharged material in a generally radial path surrounding the axis of discharge, and a shroud surrounding the impeller aligned to intersect the path of the broadcast material and to deflect the material downwardly to a region of controlled configuration. The shroud is curved, preferably elliptically in horizontal cross-section and has a width along the direction of advance of the spreader which is less than the width along a direction transverse to the direction of advance.

Abstract: This invention embodies an intensifier cylinder assembly within the main hydraulic ram of a plastic molding machine whereby the clamping force holding the mold halves together can be increased during the shot cycle of the machine by at least three times the normal clamp force of the machine. Additionally, the location of the intensifier reduces the number of high pressure hydraulic fittings in the machine improving the safety factor while reducing the overall cost of the intensifier itself since the ram piston now becomes the housing for the intensifier piston.

Abstract: The filling head detection device has a stop member at its downstream end for each row of articles supplied thereto, a conductive metallic flag pivotally positioned on the stop member and normally projecting upstream therefrom and being movable to a retracted position by an article moved along the filling head into engagement with a stop member, each flag having a hole therein with such holes being aligned transversely of the filling head. An electrical contact member extends through the holes in the flags and normally is in contact with a wall surface thereof, but with article moving into engagement with the stop members in the individual rows moving the flags to retracted positions to break their electrical contact with the contact member so that operative conditions in an electrical system connecting to the contact device can be varied.

Abstract: A sharpening device for steel edge strips on skis which comprises a generally straight file blade and a holder for bending this blade, to limit its cutting action to a few teeth at a time.

Abstract: A liquid conducting heat exchanger is mounted above a combustion zone burning combustible gas supplied by a fan through a combustible gas and air mixing chamber and a plurality of separate burner units spaced adjacent to the combustion zone. Each burner unit is specially designed to provide a gas conducting channel of diminishing cross-sectional area which conducts gas from the mixing chamber to a perforated screen so that gas is supplied to the combustion zone at a velocity greater than the rate of burning by the flame. Each perforated screen provides a convex surface facing the combustion zone while a first screen edge is movably retained within a recess for permitting thermal screen expansion and contraction while the remaining screen side edges are connected to a housing by a gas impervious seal. Each burner unit includes an outwardly extending lip which provides a removably sealing connection with the mixing chamber housing.

Abstract: A sprinkler for use in a fire extinguishing system includes an apertured body member, a closure cap, a frame supporting a deflector, a strut holding the closure cap and a lever bearing against said strut and releasably retained by a transversely disposed fusible element engaging spaced apertured arms on said strut.

Abstract: This invention provides a process for cutting a film covered item without piercing the covering film. Basically, the process comprises the steps of mounting an item on a compressible base and covering the mounted item with a resilient film, and then contacting the mounted film covered item with cutting means under pressure such that the item is cut and the base is compressed by the cutter means without the covering film being pierced by the cutter means. The present invention is also directed toward the mounted film covered and cut item that is produced by this process.

Abstract: A method of manufacturing sealed thermostats or the like is disclosed in which male and female members are assembled with an interference fit to produce a seal which is maintained through a predetermined operating temperature range. The minimum interference during assembly is selected so that such minimum interference is greater than the difference in the temperature during assembly and the most adverse seal temperature to be encountered within the temperature range, times the difference in coefficients of thermal expansion and contraction between the members times the linear dimension of the seal. In addition, the two members are selected so that the maximum total elastic deformation is greater than the difference in coefficient of thermal expansion and contraction times the difference between the maximum and minimum temperatures within the temperature range times the linear dimension.

Abstract: A fungicide composition for the control of plant disease comprising (a) a substituted methoxybenzene and (b) a benzimidazolecarbamate or a compound which breaks down upon application to plants to form a benzimidazolecarbamate, the ratio by weight of the methoxybenzene to the benzimidazolecarbamate ranging from 10:1 to 1:5. The compositions are particularly effective for the control of both gray and pink snowmold.

Abstract: Oligomers produced by reacting low molecular weight epoxy compounds and low molecular weight mono-hydroxy vinyl compounds having at least one vinylic unsaturation, either in the form of vinyl groups, allylic, acrylic or methacrylic radicals attached thereto, wherein the resulting oligomers have more than one vinylic group per molecule.

Abstract: A pad and garment assembly comprising a pad adapted to be worn on the wearer's body in conjunction with a garment. The pad has a pair of laterally extending ears and the garment has means for receiving the ears detachably to secure the pad to the garment.

Abstract: A controlled-release particulate fertilizer composition is prepared by compacting and agglomerating particles of a foamed urea-formaldehyde condensation product into a sheet having a specific gravity of at least 1.40, the molar ratio of urea to formaldehyde in said condensation product being from 1.3:1 to 2.4:1, comminuting the compacted sheet into particulate form and separating and recovering the particles having a size of more than 30 mesh, substantially all said recovered particles having a ratio of largest to smallest particle of less than 3:1. The fertilizer is characterized by a high degree of uniformity from particle to particle in both composition and size, relatively high particle density and a combination of both quick initial and long lasting nutrient release.

Abstract: Apparatus for reading images from an image carrier, such as a microfiche. The apparatus includes a mechanism for holding the image carrier between two glass plates as the carrier is moved across the optical plane of a corresponding optical system. These glass plates are pressed together in the area of the optical axis so as to ensure that the image carrier is held in a flat position when it is being viewed through the optical system. When the holding mechanism is moved to one end position so as to be substantially withdrawn from the reading apparatus, however, one of the glass plates is automatically swiveled out and away from the other glass plate so as to allow an image carrier to either be removed or inserted between the glass plates.

Abstract: An end closure for large diameter thin wall pipe employs separate opposed outside contractible and inside expansible assemblies to grip the pipe. A separate yoke member is carried by a closure member of the inside assembly and in turn carries means to actuate a seal between the closure member and the pipe. The external contractible member assembly has a sleeve-like clamp which extends longitudinally beyond the area of the internal expansible member and seal and confines the pipe beyond said areas.

Abstract: A hook storage device is provided for locking a hung object against unauthorized removal. The device includes a J-shaped storage hook formed from a single length of rod stock. A closed eyelet is formed at a hook point end and an open eyelet is formed at a hook head end. A support eyebolt has a shank which can be fastened into a support, and a head terminating in a closed eyelet. In use, a flexible cable passes through the closed hook eyelet, through an object hung upon the hook, and through the closed eyebolt eyelet. A lock can be secured to cable ends to positively lock the storage hook, hung object, eyebolt, cable and lock itself together in a nondetachable, positively locked assembly.

Abstract: The heat radiator takes the form of an extruded member defining parallel fins on its bottom surface and having a flat top surface arranged to be cemented directly to the bottom surface of a transmission fluid pan in an automobile. A special cement having high thermal conductivity is used and the extruded member may be made in modular form so that the entire area of the bottom of the pan can be covered by forming a set of modular units.

Abstract: Plastic molding machine, primarily adapted for generating and molding a closed-cell foam plastic material. The foam is generated by introducing a gas inert to the plastic material into a granular mixture of same so that the gas is thoroughly intermixed among the granular particles. The gas is then held under pressure while the granular particles are reduced to a flowable material, said pressure being sufficient to assure that the gas will not be expelled therefrom during the plasticization process. In one preferred embodiment, gas is mixed into the granular plastic in a hopper and held therein under pressure as said granular material is fed into a screw and plasticized thereby.The plastic material is then conducted at a relatively low pressure, such as that generated by the extrusion machine used for plasticizing the material, through a branched system past a check valve in each branch of said system, to an injection assembly.