baber/WOPTO huggingface dataset:
Patent DE-3121246-A1 (DE)
Title: Process and apparatus for processing used oil to give gas oil or heating oil by distillation
IPC: C10M175/00
Filed: 1981-05-29
Abstract: Used oil can be processed with a very high yield to give gas oil or heating oil if at least 10, preferably 50 to 100, per cent by volume of gas oil or heating oil is added to the used oil, the mixture is then heated to a temperature of at least 250 DEG C and the oil vapours formed are condensed. This processing can be carried out, at small used oil collection points, in a very compact apparatus having a heatable used oil chamber (1), an evaporation chamber (2) situated above this, and a subsequent coolable condensation chamber (3), if the used oil chamber (1) is fitted for feed of used oil and gas oil or heating oil and is equipped with a used oil-driven heating device (11, 12) and the condensation chamber (3) surrounds the evaporation chamber (2) and has cooled pipe coils (15). The exhaust gas heat and heat of condensation taken up by the cooling water can advantageously be used for heating purposes and the like. <IMAGE>
Patent DE-3123634-A1 (DE)
Title: System of elements
Inventor: HAHN MICHAEL
IPC: F16G13/18
Filed: 1981-06-15
Abstract: In a system of elements, having a one-dimensional extent, individual elements are arranged in a row, each of which can execute movements with respect to the adjacent elements. The elements are connected via joints to one another, some of which are constructed as rotating joints and others as pivoting joints, the sequence of joints and the construction of the elements corresponding to a predetermined folding arrangement. The elements fit into a cross-sectional grid which is the same for all elements. They may have a square cross-section. Some pivoting joints permit a pivoting angle of 180 DEG , while others permit a pivoting angle of 360 DEG . At least one pivoting element has two pivot bearings, the one of which forms a pivoting plane which is offset through 90 DEG  with respect to that of the other.
Patent DE-3125162-A1 (DE)
Title: Freezing-in point
Inventor: BACH JOSEF DR ING
IPC: F16K49/00
Filed: 1981-06-26
Abstract: The capability to close a melt line in a simple way is described, which melt line is surrounded by a heating means. A freezing-in point is used for this purpose, which is surrounded by an input line and an output line for a coolant. A cooling space which, for its part, is surrounded by a coolant outlet space, is arranged around the melt line. The cooling space and the coolant outlet line are located within the heating means; the cooling space is connected to the coolant input line and to the coolant output line. If coolant, for example air at room temperature, is now blown through the input line into the cooling space and flows there around the melt line, it cools down the melt located therein, which melt in consequence becomes solid and interrupts the further flow of the melt through the melt line. The coolant flows away again through the coolant outlet space and through the coolant outlet line, once it has absorbed heat from the melt line and thus from the melt. The freezing-in point has no constriction whatsoever of the cross-section of the melt line, as long as no coolant is introduced.
Patent DE-3127817-A1 (DE)
Inventor: FLEISSNER HORST ING GRAD
IPC: G09G1/16
Filed: 1981-07-14
Abstract: 1. A method of improving the reproduction of alphanumeric characters and drawings on electron-beam raster display screens wherein the dots or lines forming these characters or graphic symbols are produced by an appropriate pulse-controlled brightness control, characterised in that either the bright-dark edges or the dark-bright edges of the control pulse for the bright-ness control of the raster display screen are delayed in time.
Patent DE-3128838-A1 (DE)
Title: Panel-type heating element, in particular for drying (airing) cupboards or the like
Inventor: KLEIN ADALBERT ING GRAD
IPC: F26B3/20
Filed: 1981-07-22
Abstract: A panel-type heating element, in particular for drying cupboards or the like, having a flow conduit which is provided between two wall panels and extends from a feed connection to a return connection for a flowing heat carrier, in particular warm water, is to be configured such that, on the one hand, the temperature conditions are as uniform as possible over the entire panel surface and, on the other hand, simplicity and economic advantage are preserved in manufacture. This is achieved by assigning to the flow conduit (20), which extends in a meandering fashion in the interspace (7) of the wall panel (2, 3), a flow conduit (21) which is guided contiguously in a parallel fashion, and connecting the latter to the return connection (10) and feed connection (9) such that it has an opposite flow direction. In this arrangement, it is preferred to arrange next to one another a plurality of pairs of flow conduits (20, 21) having counterflow. <IMAGE>
Patent DE-3140244-A1 (DE)
Title: Packaging container and method of manufacture thereof
Inventor: DREYER JUERGEN DIPL ING
IPC: B65D75/30
Filed: 1981-10-09
Abstract: The present invention relates to a packaging container having a multiplicity of individual packages, containing food, in a plastic film which has a non-return valve, as well as a method for manufacturing the packaging container. Packaging containers of this type have previously employed a continuous film which is folded round the individual packages. For strength reasons, the individual packages have also always been arranged on a cardboard base. However, the invention now follows a different, new path, whilst retaining the possibility of using only one valve per packaging container. According to the invention, a two-part film is provided, whose bottom part is firstly thermoformed and subsequently welded to a covering film. Surprisingly, the strength of the packaging container is in no way impaired and, additionally, complicated folding devices are not required.
Patent DE-3141602-A1 (DE)
Title: Method and apparatus for the electrical discharge drilling of a fine hole in a workpiece
Inventor: SHIMIZU AKIHIKO
IPC: B23H7/30
Filed: 1981-10-20
Abstract: A method and an apparatus for the electrical discharge drilling of a fine hole of high depth/diameter ratio in a workpiece (W) using a tubular electrode (E) of correspondingly high slenderness ratio uses a novel fluid-feed mechanism which has a cylindrical chamber (22), connected by an outlet opening (34) of the same to the inner bore of the tubular electrode (E) open towards the machining gap (G), and a piston body (23) for displaceable accommodation in the chamber (22) in order to be movable therein. Before a drilling operation, the cylindrical chamber (22) is filled with a given quantity of machining fluid (2) from a source of the same. During the drilling operation, a motor (26) advances the piston body (23) in order to move it in the chamber (22) with a controlled velocity of movement. The poured-in machining fluid (2) in the chamber (22) is thus put under pressure by means of the piston body (23) and discharged from the chamber (22) and fed through the inner bore of the tubular electrode (E) into the machining gap (G) with a regulated flow velocity. <IMAGE>
Patent DE-3142975-A1 (DE)
Title: Process for the preparation of tritium-labelled retinoic acid
Inventor: PREHM PETER DR
IPC: C07C403/00
Filed: 1981-10-29
Abstract: The invention relates to a process for the preparation of tritium-labelled retinoic acid, which is characterised in that retinoic acid is brominated, and the bromination product is reduced using a tritium-labelled reducing agent. Bromination can be effected, for example, using N-bromosuccinimide and the reduction using sodium borohydride. The retinoic acid obtained has a specific activity of about 3.7 x 10<10> Bq/mol (1 Ci/mmol).
Patent DE-3151115-A1 (DE)
Title: Surface-coated strip steel of good corrosion resistance, paintability and corrosion resistance after application of paint
Inventor: HARA TOMIHIRO
IPC: C09D5/08
Filed: 1981-12-23
Abstract: The strip steel described comprises a cladded base steel sheet, such as an electroplated, zinc-alloy-cladded or aluminium-cladded steel sheet and a chromate film formed on the cladded base steel sheet. On the chromate film, a film consisting of a silicate/resin composition is formed. The film consisting of the silicate/resin composition comprises a reaction product of colloidal silica, an organic resin and a silane compound.
Patent DE-3202240-A1 (DE)
Title: Process and device for separating particles from a flowable medium, in particular for removing dust from gas
Inventor: KELLER EGON
IPC: B04C9/00
Filed: 1982-01-25
Abstract: In a multistage process for particle separation, in particular for removing dust from gas, in which in each stage a pure gas stream is separated off, preferably by means of a cyclone chamber separation, and the remaining stream is passed on to the next stage, the degree of purity of the pure gas streams drawn off can be improved and the overall efficiency can be increased according to the invention, if, by means of screening provided upstream, a fine fraction of the particles together with a smallest possible part-stream of the gas is branched off and is fed to direct purification for example by means of a filter, bypassing the separating stages. The screening is preferably carried out likewise using a cyclone chamber separation, in this case with an efficiency set deliberately low. <IMAGE>
Patent DE-3207322-A1 (DE)
Inventor: TETENBORG KONRAD
IPC: B65D88/16
Filed: 1982-03-01
Abstract: A sack comprises an inner container and a double-ply outer container which latter comprises a tubular or essentially tubular section of which the opposed severed edges are interconnected by a seam. Alternatively, the outer container comprises two such sections having their severed edges interconnected by respective seams.
Patent DE-3210287-A1 (DE)
Title: Roller tape measure
Inventor: KUNTZE RICHARD
IPC: G01B3/10
Filed: 1982-03-20
Abstract: In a roller tape measure which is provided with a handle, is wound in the interior of its housing onto a spring-loaded coil core and in the event of pressure on a pin is drawn into the housing through a slot opening on the circumference thereof, accurate measurement of the circumference of a round body, for example, is rendered difficult. In order to eliminate this disadvantage, the housing has at the front end a trough which extends up to its lateral boundary and with which the housing is applied to the body to be measured. Furthermore, directly at one end of the trough the housing has on its circumference a slanting slot which is open on a broadside of the housing and reaches as far as into a receptacle which is open on the same broadside and is provided in the housing and into which the roller tape measure applied to the body can be inserted using its handle by guiding in the slanting slot.
Patent DE-3212320-A1 (DE)
Title: Circuit arrangement for selectively driving one or a number of power field-effect transistors in switching mode with potential isolation
Inventor: BERTSCH BRUNO ING GRAD
IPC: H03K17/691
Filed: 1982-04-02
Abstract: The circuit arrangement for selectively driving one or a number of power field-effect transistors in switching mode with potential isolation by means of transformers brings improvement with respect to noise sensitivity, frequency range, power loss and space requirement. These are achieved with the aid of a centrally generated auxiliary voltage, the transmission of which is controlled by an electronic switch (7) controlled by the respective input signal (e1...en). The lack of sensitivity to electromagnetic interference is achieved by means of a low-resistance load resistor (12) between gate (G) and source (S) of the field-effect transistor (13). The resistor (12) also results in a rapid turn-off of the field-effect transistor (13), as a result of which the power loss of the transistor (13) is low. This is of significance particularly in the case of high frequencies.   <IMAGE>
Patent DE-3218240-A1 (DE)
Title: Awning for covering containers and method of manufacturing it
Inventor: OELLERKING GEORG
IPC: B65D88/12
Filed: 1982-05-14
Abstract: The invention relates to an awning provided with four attachment flaps for covering rectangular containers which are open at the top and have four corner posts. The awning is prepared as a semi-finished product in such a way that the flaps attached to the two ends of the awning are longer than the distance between the corner posts provided at the ends, while the two other flaps are longer than the distance measured at the longitudinal side of the container between two corner posts. It is established by trial covering of the container where the attachment means are to be attached in the flaps and which parts have to be cut off to produce the finished awning so that an awning which is accurately matched to the relevant container can be produced in a simple manner.
Patent DE-3222781-A1 (DE)
Title: Method for greening structural bodies, prefabricated self-greening structural elements for implementing the method and method for manufacturing the same
Inventor: KINKEL HORST DR
IPC: A01G9/02
Filed: 1982-06-18
Abstract: A method for greening structural bodies is described. To this end prefabricated self-greening structural elements are manufactured. These comprise a matrix made of concrete, into the cavities of which a self-greening mass is filled. The latter contains seeds or spores of the required plants and nutrients and rooting substrate for the same. These self-greening bodies can be fastened to the shuttering before the erection of the structural body from in-situ concrete or introduced into the mould before pouring in the concrete in the case of manufacture of prefabricated structural elements. The triggering of the germination process can take place by setting optimum germination conditions before building into the structural body. Even extremely large-area structural bodies can be completely greened in this manner in a very short time.
Patent DE-3232210-A1 (DE)
Title: Sheet-conveying device in a copier
Inventor: ERMEL HEINRICH
IPC: B65H29/58
Filed: 1982-08-30
Abstract: A sheet-conveying device for sheets (1) which are conveyed longitudinally through a copier and which are to be printed on both sides includes a turning device (E) which turns the sheet between copying processes in one or more steps about an axis parallel to the direction of transport (A), in order to ensure that the top of the type face (1a,1b) is in the same position on the front and back of the sheet. This turning device may consist simply of a rotatably mounted suction platform connected to a standard turning loop or to a device for reversing the movement of the transported sheet, or a pair of conveying rollers which can be driven in the same or opposite senses and are connected to a reversing loop, or two guideways which can be alternately pivoted into the transport path of the sheet, each guideway having a device for reversal of the direction of sheet transport. <IMAGE>
Patent DE-3240671-A1 (DE)
Title: Clamping connector
Inventor: SCHLIEPHACKE HEINRICH DIPL ING
IPC: E04B1/58
Filed: 1982-11-04
Abstract: The invention relates to a clamping connector for two intersecting girders with flanges, one girder having an approximately l-shaped cross-section. The stirrup, of U-shaped construction, of the clamping connector embraces a flange of this girder, it being possible for two claws with bearing faces to be pressed against this flange. In this arrangement, the cross-member of the U-shaped clamping connector engages under the flange of the other girder of the cross-shaped connection, the lower parts of the U-shaped stirrup being bent at right angles so that the second connected girder can also have a C-shaped cross-section.
Patent DE-3241668-A1 (DE)
Title: DC-DC converter
Inventor: SPITZNER ROLAND
IPC: H02M3/335
Filed: 1982-11-11
Abstract: In a pulsed DC-DC converter having a pulse-width modulator, a starting circuit and a current transformer for detecting the primary current which is compared in a comparator with a reference voltage, it is provided that the output current of the comparator influences the starting circuit. This results in fast dynamic current limiting and, at the same time, current regulation. In order to achieve a digital method for influencing the starting circuit, it is furthermore provided that the reference voltage is an AC voltage. <IMAGE>
Patent DE-3247335-A1 (DE)
Title: Drive assembly with a primary energy source and with a device for braking
Inventor: ABELS THEODOR ING GRAD
IPC: B66F9/22
Filed: 1982-12-21
Abstract: Drive assembly, preferably for vehicles, with a primary energy source, preferably an internal combustion engine, into which, in the braking condition, so called drag power can be fed in and with a preferably adjustable transmission and with an auxiliary pump connected to the primary energy source, a connectable restrictor being arranged in the delivery line of the auxiliary pump, so that in that condition in which braking power is to flow back to the primary energy source by way of the transmission, the power absorption is increased, the auxiliary pump pumping against the resistance of the restrictor.
Patent DE-3302021-A1 (DE)
Inventor: ROSSY PHILLIP A DR
IPC: C07D401/14
Filed: 1983-01-22
Abstract: Novel 6-(acylaminaryl)-3(2H)-pyridazinones of the formula    <IMAGE> (I)  where R1, R2, R3, R4, A and B have the meanings given in the description, and their preparation are described. The compounds have thrombocyte aggregation-inhibiting activity.
Patent DE-3305862-A1 (DE)
Title: Heat transfer unit
IPC: F28F9/00
Filed: 1983-02-19
Abstract: A heat transfer medium is introduced on one side in a heat transfer unit having an interior through which medium flows. A jacket member surrounding the interior is mounted in a sealing fashion on a separating plate. In addition, at least one sensor element projecting into the interior is arranged sealingly on the separating plate. The sensor element is either a temperature sensor, level sensor, flow sensor or pressure sensor. The sensor element is mounted sealingly in a sleeve which penetrates the separating plate and projects into the interior.
Patent DE-3309922-A1 (DE)
Title: Tool-changing holder
Inventor: HERTEL GUENTHER
IPC: B23B29/04
Filed: 1983-03-19
Abstract: In the case of a tool-changing holder with a collet chuck (7) which is effective between tool shank (1) and clamping bolt (8) of a tool head (4), the clamping jaws (10) of the collet chuck (7) bear, in the clamping position, with two or more inner-cone segment surfaces (16, 17), which lie next to one another in the axial direction, against corresponding mating surfaces of the clamping bolt (8), whereas they are supported by their outsides via cylinder-segment outer surfaces (24, 25), arranged distributed in the axial direction, against corresponding inner cylinder surfaces (28, 29) of the tool shank (1). In this connection, the cylinder-segment outer surface (24) which is acted upon by that inner cylinder surface (29) of the tool shank (1) which is remote from the tool head lies, with respect to the axial direction, between the mounting surface (13) of a connecting rod (3) and that inner-cone segment surface (17) of the clamping jaw (10) which is nearest to it. <IMAGE>
Patent DE-3313419-A1 (DE)
Title: Cell for an electrical accumulator having a cell cover terminal seal
Inventor: MOLL PETER J
IPC: H01M50/176
Filed: 1983-04-13
Abstract: The invention relates to a cell for an electrical accumulator (rechargeable battery) having a cover which has a terminal bushing and is preferably mounted in a liquid-tight and gas-tight manner on the upper edge of the cell, and having in each case at least one positive and negative plate set which has in each case one terminal projecting beyond the cell cover and whose plates are preferably constructed as tubular plates. In order to create a cell cover terminal seal which avoids cell damage and cell cover damage resulting from thermal welding to the cell housing when the cover is mounted on the edge of a cell and, as a consequence of this, avoids any possibility of deformation when the plate set is raised, according to the invention, the terminal is supported such that it can slide in the cover with respect to the pole bushing.
Patent DE-3313910-A1 (DE)
Title: Hydropneumatic accumulator
Inventor: BURGDORF JOCHEN
IPC: F15B1/08
Filed: 1983-04-16
Abstract: The invention starts from hydropneumatic accumulators with a housing whose inner space is subdivided by a separating body into two chambers of variable volume. The separating body is made in such a way that it is essentially permeable to gas. A first chamber divided off by the separating body is filled with gas, while hydraulic oil can be admitted to a second chamber. To prolong the life of accumulators of this type, provision is made for the first chamber to be filled with a gas mixture which is composed of gases which can be mixed with one another and have different molecular diameters. In a design of this type, the gas with the larger molecular diameter constitutes a safety reserve.
Patent DE-3316714-A1 (DE)
Title: Vibratory grinding machine
Inventor: BRUINS JAN
IPC: B24B31/073
Filed: 1983-05-06
Abstract: The invention relates to a vibratory grinding machine having an essentially circular trough-shaped treatment receptacle (6), in which, at a certain distance above the bottom of the receptacle, there is provided a separation device (11) for separating the workpieces (8) to be treated from the treatment agent to be used, when emptying the receptacle. In this machine, in the advancement direction of the workpieces and of the treatment agent upstream of the sieve in the receptacle, a flap is located which can be pivoted into the advancement path of the workpieces and the treatment agent, in order to move these upwards towards the separation device. In order to improve the upward migration of the workpieces and of the treatment agent towards the flap, the latter contains at least one step which rises in the advancement direction, which step has, when it is positioned pivoted into the advancement path, an essentially vertical upright surface (22) and an immediately adjoining, essentially horizontal resting surface (21). There may also be a plurality of steps one after the other, each having a vertical upright and a horizontal resting surface. The flap may also be mounted in a fixed position in the receptacle. <IMAGE>
Patent DE-3327837-A1 (DE)
Title: Fixing apparatus for hanging up large-format writing pads
Inventor: TOBLER ERICH
IPC: B42F15/06
Filed: 1983-08-02
Abstract: A fixing apparatus for hanging up an article has a head-rail, into which the upper edge of the article can be introduced, and at least one fixing mechanism for holding the upper edge of the article in a suspended position, the fixing mechanism having a snap-action bolt which is movable transversely to the head-rail and has a bearing surface, is prestressed into an engagement position, and has a control surface which, when the article is introduced, can be pushed aside by the article and thus moves the snap-action bolt into a release position, so that it can slide over the article when the latter is introduced and can engage into a suspension hole or the like provided in the article, and the control surface having a first component which can be actuated by a substantially vertical movement introducing the article in the position of use of the apparatus, and a second component which can be actuated by a substantially horizontal movement of the introduced article in the position of use of the apparatus.