Abstract: Control device for guiding a hydraulically operated cutter mechanism of a harvesting machine, particularly a combine harvester, at a preselected height above the ground, said cutter mechanism being connected via a connecting member and two series-connected spring elements to a stationary portion of the harvesting machine, the spring force of at least one of said spring elements being preselectable by means of an adjustment lever, while between said spring elements a switching member is arranged which depending on the position thereof acts on a switch actuating either a raise valve or the lower valve of the lifting cylinder or takes a neutral position, wherein said two spring elements connected with one of their ends to said cutter mechanism are connected via said connecting member to said adjustment lever provided on the stationary portion of said combine harvester.

Abstract: A device for cleaning and circulating a liquid includes a one-piece plastic body having a strainer housing portion for receiving raw liquid which is to be cleaned, a filter housing portion from which cleaned liquid is to be discharged, and a pump housing portion for housing a pump and formed with a pressure outlet communicating with the filter housing portion and through which pumped liquid is delivered to the filter housing portion to be filtered therein. This pump housing portion is also formed with a suction inlet for delivering liquid to a pump housed by said pump housing portion to be pumped thereby to the pressure outlet. The filter housing portion is formed with a passage communicating on the one hand with the suction inlet and on the other hand with the strainer housing portion, so that raw liquid received in the strainer housing portion will flow therefrom through this passage to the suction inlet.

Abstract: A self-loading vehicle has a frame as well as a ground-engaging structure supporting the frame for travelling movement, this latter structure and frame cooperating to provide for the vehicle a given wheelbase. A lever is pivotally connected with the frame to turn with respect thereto about a lever axis, while a load-carrier is pivotally connected to the lever to turn with respect thereto about a carrier axis. A displacing structure is operatively connected to the frame, the lever, and the load-carrier to displace the lever with respect to the frame while turning the lever about the lever axis and to displace the load carrier with respect to the lever while turning the load carrier about the carrier axis.

Abstract: A control system is disclosed for selective positioning a displaceable device, in particular the load carrying fork cage of a so-called fork-lift truck, into pre-selected positions or heights. The control system includes spaced apart pairs of associated switch elements, one element of each pair being mounted on a stationary guide, and the other element on the displaceable device. Each element pair defines one of the pre-selectable positions when the two elements are aligned, and in that case they further assume an actuated condition. Each element pair is connected in series with a particular selector switch, and when both the selector switch and the element pair are in an actuated condition, a coupling device is energized to cancel or reduce the load carrying ability. The displaceable device then sinks until the two elements of the actuated pair are separated, whereafter the displaceable device is kept stationary in a well defined position or height.

Abstract: The present invention relates to a liquid-crystal indicator, wherein a layer of nematic liquid crystals is interposed between two transparent multi-layered blocks. Each of the multi-layered blocks comprises successively disposed, in a direction from the layer of the liquid crystals, a layer of germanium oxide ensuring a twisted structure of the liquid crystals, a current-conducting layer, a dielectric layer and a polarizing layer. The use of germanium oxide makes it possible to lower the control voltage of the indicator to values of below 1.8 V.

Abstract: A supercalender wherein a stack of metal rolls form an upright series of metal rolls defining hard nips between themselves. The upright series of metal rolls include top and bottom rolls and between the latter at least a pair of intermediate rolls one of which is an upper intermediate roll situated next to the top roll and the other of which is a lower intermediate roll situated next to the bottom roll. At least one pair of filled rolls are situated next to at least one of said intermediate rolls to define therewith a pair of soft nips.

Abstract: A method of mounting a composite heat-insulating wall structure for a tank for the transportation of liquefied gases, wherein a wall of heat-insulating material is injected directly onto the secondary barrier formed by the ship's double hull, the primary barrier being secured on the insulating wall. This insulating wall is injected through the medium of moulds.

Abstract: For the purpose of forming a reinforcing layer of a decay-retarding agent on the surface of teeth, a device is provided for transmitting ultrasonic waves to the teeth while the latter are in contact with a decay-retarding agent. The device includes an enclosure which is adapted to contain a medium for transmitting ultrasonic waves, this enclosure including a sheet material which defines a hollow interior space in which an ultrasonic wave transmitting medium is adapted to be located. This sheet material of the enclosure has the property of being impermeable to the ultrasonic wave transmitting medium, so that the latter cannot pass through the sheet material. In addition, the sheet material has the property of transmitting ultrasonic waves therethrough.

Abstract: The invention relates to platforms of the off-shore type. It consists principally in arranging the base of the platform in the form of an elongated reservoir able to float and of a sufficient length to serve as a support for a column during transport to the anchoring point. For positioning the reservoir-base on the sea-bed, the reservoir is first of all tilted under the effect of ballasting until one of the ends of the reservoir touches the sea-bed. Then the column is released to assume its vertical position by way of floats connected thereto; and the operation is completed by ballasting to bring the reservoir-base to a horizontal position on the sea-bed.

Abstract: The invention relates to oil-field production equipment. It consists particularly in using a production platform of the type articulated to a base, and which comprises a gas and oil separator while being combined with a flare located at a suitable distance from the axis of the platform, this flare being carried by a floating support turning into the wind, while being connected by at least one arm hinged to rotatable head of the platform. The invention comprises also different arrangements relative to the connection between a drilling platform and a storage and loading platform.

Abstract: A method and device for testing a liquid such as urine for obtaining at least qualitative, but also quantitative, if desired, information in connection with a substance which may be present in the liquid. A reference body and at least one test body are dipped into and removed from the liquid which is to be tested, a suitable means being connected with the bodies to facilitate the dipping thereof into and the removal thereof from the liquid. The test body is capable of giving a color indication in connection with the substance while the reference body has characteristics substantially identical with those of the test cody except that the reference body is incapable of giving a color indication in connection with the substance. Thus, after removal of the bodies from the liquid the reflectivities thereof may be compared so as to give at least a qualitative, but also a quantitative, if desired, indication of the substance in connection with the liquid which is tested.

Abstract: The invention relates to weaving mechanisms and can be used to advantage in wave-type shedding looms. The mechanism includes a plurality of toothed discs mounted in a staggered fashion on a shaft and defining a helical surface having a portion of a varying radius diminishing axially in the direction of the advancing motion of the helical surface. Underlying the discs are support rollers with lugs defining a helical surface engaging the helical surface defined by the valleys of the discs and likewise having a portion of a varying radius, engaging the corresponding portion of the helical surface defined by the valleys. Such an embodiment simplifies the structure of the mechanism and obviates the need in a drive of the support rollers.

Abstract: A method and apparatus for providing in a web of sheet material, particularly a paper web, a predetermined moisture content which is uniform throughout the web. The web which has been dried so as to be within the hygroscopic range is directed through an enclosure which is closed off from the outer atmosphere while lapping in the enclosure a perfusion roll having a foraminous wall through which a treating gas, such as air of a given humidity or steam with predetermind properties, can pass into the interior of the roll after first passing through the web which laps the roll.

Abstract: A swimming pool having a panel composed in its entirety of a single unit of plastic and having an upright relatively thin wall an inner surface of which is directed toward the interior of the pool and an outer surface of which is directed away from the interior of the pool, this wall having at an upper region a stepped portion defining a recess extending along the upper region of the wall and directed toward the interior of the pool with the outer surface being stepped as well as the inner surface, and with this stepped portion being situated directly beneath a coping portion formed by a part of the wall which is curved first inwardly towrd the interior of the pool and then upwardly and outwardly away from the pool to form a coping portion which has a hollow inner interior part situated over the recess formed by the stepped portion.

Abstract: A control system and method for loading an engine driven apparatus such as an engine driven tractor having a plough the depth of which can be regulated by a suitable control system. The engine has a fuel injection pump which includes a maximum fuel feed limiting structure, a stop, and a structure for urging the maximum fuel feed limiting structure against the stop when an overload is imposed on the engine. Under the latter overload conditions the force with which the maximum fuel feed limiting structure is urged against the stop is detected by way of a force transducer such as a strain gauge or hydraulic pressure transducer, so that a signal indicative of the overload is produced and can be utilized for reducing the load on the engine. Thus, in the case of an engine-driven tractor which operates a plough, the latter signal can be utilized to raise the plough so as to reduce the load on the engine.

Abstract: The present invention relates to equipment for treating a band-type material and can be used most successfully in the textile finishing and dyeing industry. The chamber for treating a band-type material under overpressure is formed by hermetically joined arched bottom, arched roof and side walls built into flanges so that the chamber has a crescent cross section and is provided with throats located near the flanges. This layout of the chamber reduces considerably its metal content and allows a number of chambers to be combined into a single installation to be used both for prolonged single-stage treatment and for multiple-stage treatment of the material.

Abstract: A surgical instrument for suturing tissue with metal staples includes an anvil unit which has two elongated jaws aligned with each other and having inner surfaces facing each other and formed with longitudinal guiding grooves for a staple. The front ends of the jaws carry anvils for bending the tips of the staples, said anvils being shaped as curved needles, having tips facing each other and formed with longitudinal grooves which are extensions of said guiding grooves of the jaws. The jaws can be releasably connected to each other in a position in which the longitudinal grooves of the jaws are approximately parallel to each other. A detachable staple-driving unit has a frame mounted on the jaws, provided with grooves for a staple and a staple driving member with a lever for operating the same.

Abstract: Apparatus for providing a living being with an implant which is absorbed into the body. The implant is situated in the body adjacent the outer skin. The implant is injected in a liquid, molten condition, but assumes a solid condition at body temperature. The composition of the implant is such that the implant will be absorbed by the body at a greater rate when the temperature of the implant is increased. By situating the implant adjacent the outer skin it is possible to elevate the temperature at the outer skin so as to increase the rapidity with which the implant is absorbed by the body. A syringe which contains the implant in solid condition is provided with a heating structure which is operated for the purpose of converting the composition into a liquid molten condition in preparation for injecting the composition into body tissue.

Abstract: An aerosol metering valve provided with a pumping effect, comprising a first hollow piston movable within a cylinder or chamber housing a second piston movable against a spring and normally urged thereby to a position closing the hollow piston, wherein the second piston has at least one passage which, under inoperative conditions of the valve, provides communication between the interior of the container and the cylinder or chamber.

Abstract: An apparatus for current pulses action upon the central nervous system, in which current pulses are supplied from a unit for rhythmic current pulse action upon the central nervous system of a patient via a unit for regulating the duration of current pulses or via an intermittent analgesia unit, a unit for adjusting the amplitude of current pulses and a unit for indicating the mean current intensity value to the patient through electrodes, a cathode attached in the patient's forehead area and an anode attached in the patient's neck area below the mastoids, the above mentioned pulses being stopped by means of a patient protection unit, when a specific amplitude of current pulses is attained. The apparatus provides for regulation of the repetition frequency of current pulses, their amplitude and the level of the additional direct component, depending on the intensity of pain in the patient.