baber/WOPTO huggingface dataset:
Patent DE-3818833-A1 (DE)
Title: Piston for pneumatic cylinders, especially cylinders without a piston rod
IPC: F15B15/22
Filed: 1988-06-03
Abstract: Pneumatic cylinders of the types that are commercially available, especially those without a piston rod, are too slow because, owing to the construction, the inlet and outlet holes are too small when damping spigots are used. The full piston area is not available in the known damping systems because the damping spigot projects in front of the piston and reduces the cross-section by a corresponding diameter or, where hollow damping spigots are used, results in an additional restriction of the inlet and exhaust cross-section. Users require cylinders which are suitable for high piston speeds of 3-15 m/s and damp large inertia forces in the end positions. The invention ensures that the air inlet is closed and opened in accordance with the cross-section of the speed to be attained in the two cylinder end pieces by the installation of a resilient shaft of any desired length in both sides of the piston, the ends of these shafts closing the respective inlet and exhaust. The end acts as a non-return valve and, depending on the installation diameter, releases up to about 99% of the piston area for damping and restarting.
Patent DE-3819983-A1 (DE)
Title: Mounting device, in particular for dental practice
Inventor: ROSSNER HANS
IPC: B25B1/22
Filed: 1988-06-11
Abstract: For the spherical bearing of a mounting plate (10) and the base frame (1), use is made of a slewing ring (6), two measuring scales (2 and 3) with markings (4 and 5) being arranged between the mounting plate (10) and the base frame (1). By angular orientation of the adjusting planes (7 and 8), any desired inclined positions of the mounting plate (10) can be set. This inclined position is easily reproducible. Locking devices (34 and 35) fix the set position. <IMAGE>
Patent DE-3822712-A1 (DE)
Title: Power transmission element for flexible transmissions
Inventor: MOZDZANOWSKI JOACHIM DIPL ING
IPC: F16H9/24
Filed: 1988-07-05
Abstract: Power transmission element for flexible transmissions with taper pulleys, also suitable for continuously variable transmissions. This power transmission element has a chain-type construction. It consists of rings which act as links and through which there pass link pins, the end faces of which rest against the taper pulleys. The cross-section of the link pins is designed so that the width is less than the height and the side faces, which are in contact with the link rings, have a convex curvature. The curvature of the cross-section is equal to or greater than the curvature of the inner surface of the link rings. The cross-section of the link pins preferably has an elliptical shape. The inner surface of the link rings and the outer surfaces of the link pins, which face the link rings, can be provided with toothing, preferably involute, W/N (Wildhaber/Novikov) or Sym-Mark toothing.
Patent DE-3822734-A1 (DE)
Title: Process for the assisted recovery of hydrocarbons in a silicon-containing geological formation
Inventor: LABRID JEAN
IPC: C09K8/84
Filed: 1988-07-05
Abstract: The invention relates to a process for the assisted recovery of hydrocarbons in a silicon-containing geological formation, which contains hydrocarbons and into which, starting from at least one injection borehole, a solution of alkaline agents is introduced or injected towards at least one production borehole, with the solution being circulated through this formation and at least a part of the solution and of the hydrocarbons, which are separated, being recovered.
Patent DE-3823593-A1 (DE)
Inventor: PFEIFER ULRICH
IPC: B65D45/32
Filed: 1988-07-12
Abstract: A container 11 is provided with a resiliently deformable seal member 13 which envelopes a beaded edge 12 of the container 11 and also fulfills the sealing function in a double cover system, a bottom surface of a shoulder 17 of the seal member 13 may comprise a support surface for a locking element 16 of a cover 14 of the container 11. The seal member 13 includes a cavity 15 for enhancing its elasticity and is secured to the container by adhesive material. The container may include a bead in its side wall against which the locking element 16 may engage (Figure 2). The container 11 may be urged directly against the bottom region of a cover 19 of a dispensing container 18 for contamination free transfer of the contents, eg radioactive or toxic material, from container 18 into container 11. <IMAGE>
Patent DE-3824842-A1 (DE)
Title: Lightweight, heat-insulating, fire-resistant structural panel and process for the production thereof
Inventor: TRATNIK JANEZ
IPC: B32B15/00
Filed: 1988-07-21
Abstract: The lightweight, heat-insulating, fire-resistant structural panel in sandwich form has, as outer coverings, two profiled metal sheets (1, 2) between which lamellae of a heat-insulating filler (3) are located, all three layers being adhesively bonded together by polyurethane. The structural panel has a fire resistance of from 30 to 60 minutes, a heat transmission coefficient K of from 0.59 to 0.34 W/m<2>K and a thickness of from 50 to 100 mm. The density of the heat-insulating filler is from 50 to 100 kg/m<3>. In order to produce said structural panel, the upper metal sheet, the heat-insulating filler and the lower metal sheet are supplied separately in a continuous manner. Before assembly, there is injected, between the upper metal sheet and the heat-insulating filler and between the lower metal sheet and the heat-insulating filler, a two-component polyurethane adhesive-bonding composition which adhesively bonds all three layers upon polymerisation. <IMAGE>
Patent DE-3828942-A1 (DE)
Title: Pick arrangement for a winning plough
Inventor: RASSMANN CHRISTOPH
IPC: E21C27/44
Filed: 1988-08-26
Abstract: The pick arrangement according to the invention for a coal plough or the like consists of a pick holder (1) and a plough pick (2) which can be inserted with its plate-shaped pick shank (4) into the pick pocket (5) of the pick holder (1) and can be secured by means of an elastic locking element (6) of plastic. The elastic locking element (6) is located in a receptacle (wall constriction 29) of the pick holder (1), preferably at the pick-holder web wall (7) lying at the front in the cutting direction. The pick (2) has a pressure surface on its shank (4), preferably in the configuration of an integrally formed detent (24), for the elastic locking element (6). The latter preferably consists of a cubic plastic body. <IMAGE>
Patent DE-3830021-A1 (DE)
Title: Roof or wall covering
Inventor: MARZOUKI TAIEB
IPC: A62C35/02
Filed: 1988-09-03
Abstract: In order to provide a roof or wall covering having fire-retardant properties, it is already known to introduce water into channels (18) of a carrying layer (11), formed from trapezoidal sheet steel, of the roof covering (10). It has, however, been shown that, in the event of a fire, leakage points rapidly arise in the carrying layer (11) which result in the short-term discharge of the water, and the latter is consequently no longer able to evaporate to discharge the heat, resulting from the fire, in order to fulfil the given fire-protection aim. The invention eliminates this disadvantage. According to the invention, a thickened, fire-retardant liquid is arranged in the channels (18) of the carrying layer (11). By virtue of this thickening, the liquid, in the event of a fire, cannot escape, or can escape only very slowly, from unsealed points in the carrying layer (11), this ensuring evaporation of the fire-retardant liquid in order to discharge the heat energy arising as a result of the fire. The invention is particularly suitable for buildings having a flat roof covering. <IMAGE>
Patent DE-3830923-A1 (DE)
Inventor: DEUTSCHMANN NORBERT
IPC: G01R31/00
Filed: 1988-09-12
Abstract: The invention relates to a circuit arrangement for generating at least two alternating-voltage output signals having a variable differential frequency. It is the feature of the invention that frequency dividers are provided which are associated with each alternating-voltage output signal and are jointly fed by a precision oscillator, the respective divider ratios of which frequency dividers can be varied by means of fixed pre-set values in such a manner that the differential frequency between the individual alternating-voltage output signals is adjustable. <IMAGE>
Patent DE-3838620-A1 (DE)
Title: Maximum/minimum thermometer
Inventor: FROEBEL JOACHIM
IPC: G01K5/20
Filed: 1988-11-15
Abstract: A maximum/minimum thermometer having an upper part (12), a U-shaped glass capillary (16), means for the generation of magnetic field lines and marking pins arranged inside the webs of the U-shaped glass capillary (16), the magnetic field lines acting at least on the webs (24) of the U-shaped glass capillary (16), is distinguished in that the U-shaped glass capillary (16) is fastened on the upper part (12), the means for generating magnetic field lines (44) are arranged fixed on the lower part (10) and the connection construction (32; 40, 42) of upper part (12) and lower part (10) is so designed that the upper part and the lower part can be moved away from each other, at least in areas, in such a way that the influence of the magnetic field lines on the webs (24) of the U-shaped glass capillary (16) can be interrupted, at least in areas. <IMAGE>
Patent DE-3838889-A1 (DE)
Title: Connecting device
IPC: F16L23/10
Filed: 1988-11-17
Abstract: A bracing ring engaging over flanges is intended to be easy to close and be secured against unintentional loosening. Formed in a bracing-ring head part is an inwardly arched receiving means into which an outwardly arched press-on part of a screwed closure engages. Pipe connection.
Patent DE-3901366-A1 (DE)
Title: Method and apparatus for heating a continuously operating hot-platen press
Inventor: BIELFELDT FRIEDRICH BERND
IPC: B30B15/06
Filed: 1989-01-18
Abstract: The invention relates to a method for heating a continuously operating hot-platen press in the manufacture of particle boards, fibreboards, plastic panels, plywood panels or the like, with endless steel belts which transmit the pressing force, are guided via driving and deflecting drums around the fixed pressing table and the liftable and lowerable pressing ram and are supported with an adjustable pressing gap against abutments of pressing table and pressing ram via co-running rolling bars guided with their axes transversely to the belt running direction, hot platens being attached to the upper side of the pressing table and to the underside of the pressing ram, which hot platens convey their thermal energy via the rolling-off rolling bars to the steel belts and therefrom to the material being pressed, the rolling bars being fed, already preheated, to the inlet region. An improved heat supply is to be achieved by the following measures,   a) the rolling bars (8; 8') rolling in in the inlet region (16; 16') are set to an operating temperature which lies about 15% higher than that of the table and pressing-ram hot platens (3; 3') and b) the rolling bars (8; 8') convey the thermal energy transmitted to them by the preheating fully to the material being pressed already in the inlet region (7; 7') via the likewise preheated steel belts, in that the rolling bars (8; 8') in the inlet region (7; 7') are not supplied with any, or with only low, quantities of heat by contact with the table and pressing-ram hot platens (3; 3').   <IMAGE>
Patent DE-3903083-A1 (DE)
Title: Processes for producing tubular films or bags from a wider tubular film of plastic and apparatus for carrying out these processes
Inventor: KARL VEIT-HOLGER DR ING
IPC: B29C69/00
Filed: 1989-02-02
Abstract: For producing tubular films or bags from a wider tubular film (1) of plastic, processes and an apparatus in which the tubular film (1) is cut up in the longitudinal direction and the films (2, 3) lying one above the other are joined to each other are specified. In this case, the films (2, 3) of the tube (1) are cut up offset transversely with respect to the longitudinal direction, the overhanging end (6) of the one film (3) is folded over and joined to the end of the other film (2). <IMAGE>
Patent DE-3905925-A1 (DE)
Inventor: GEIGER ERICH DIPL ING
IPC: H04N5/92
Filed: 1989-02-25
Abstract: During the performance and/or recording of a television programme for subsequent transmission, the title of the programme is generally cited only in the leader credits. The aim of the invention is to provide a television programme, which is to be played and/or recorded, with an associated title statement. The data for a title statement are extracted (7) from transmitted programme preview tables of the television text signal and inserted in the video signal (3) of the programme during performance (11) and/or recording (14) of the corresponding programme. The size and arrangement of the lettering are determined by means of a manipulation circuit (8) and a microprocessor (6).
Patent DE-3909493-A1 (DE)
Title: Platform balance
Inventor: EICHINGER HARTMUT
IPC: A63G31/02
Filed: 1989-03-22
Abstract: In a platform balance with two bridges (1, 2) which are movable essentially vertically and which are motionally coupled to one another in such a way that the downward movement of one bridge (1) results in an upward movement of the other, it is proposed to assign a hydraulic cylinder (3, 4) to each bridge (1, 2) and to connect the cylinder (3) of one bridge (1) to the corresponding chamber of the cylinder (4) of the other bridge (2) via a line (5), in which a current regulator (6) is preferably located. <IMAGE>
Patent DE-3910215-A1 (DE)
Inventor: SPLIETHOFF HEINZ DR ING
IPC: C02F11/13
Filed: 1989-03-30
Abstract: PCT No. PCT/DE90/00175 Sec. 371 Date Aug. 22, 1991 Sec. 102(e) Date Aug. 22, 1991 PCT Filed Mar. 9, 1990 PCT Pub. No. WO90/12249 PCT Pub. Date Oct. 18, 1990.In a method of reprocessing sewage sludge in which the sludge is dried before it is burnt, it is proposed to use steam from the water-steam circuit of a fossil-fueled power station process as the heating medium for drying and to take the vapors arising during drying into a fire chamber downstream of the power station furnace to reduce nitrogen oxides. The dried sewage sludge is preferably burnt together with coal in the power station furnace.
Patent DE-3910338-A1 (DE)
Inventor: KOBAYASHI HIRONOBU
IPC: G09G3/28
Filed: 1989-03-30
Abstract: An apparatus for displaying display data in desired representations includes a storage section (22) for storing the display data, attributes (eg color code values 0 to 15) being assigned to data portions of the display data, a display section (20, 28, 30) for reading out the display data from the storage section (22), and displaying the display data with the representations determined in accordance with display codes (gradation code values 0 to 3) mapped to the attributes, and a changing section (10, 12) for changing the mapping of the display codes to alter the display to suit. The change may be in a display value (1) (Fig 5A-5C) assigned to one of the attributes (11) selected by an input attribute selection instruction, and is effected by an input selection instruction in a code change mode. In one application, the color attributes are initially set up for a color CRT (34) display. When however a monochome eg plasma-display-panel (30) is to be used, the boundary between two colors having the same gradation code value will disappear. One gradation code value must therefore change. <IMAGE>
Patent DE-3921889-A1 (DE)
Title: End frame of a small motor
Inventor: SHIMIZU MASAAKI
IPC: H02K5/16
Filed: 1989-07-04
Abstract: An end frame (1) of a small motor comprises an outer frame (made of a yoke) and the end frame which is fastened to one end of the yoke. It has various directions and/or positions for connections to be passed out, which connections are provided in a fixed manner in the end frame. The end frame (1) of the small motor is distinguished in that the insertion holes (3 to 10) for positive fixing of the connections (2) which are used as brush holders (14a) are formed in advance in the end frame (20), in a plurality of positions and/or directions, which are based on versatile applications of the small motor. <IMAGE>
Patent DE-3922377-A1 (DE)
Title: Surface treating mechanically worked metallic components - using UV beam of excimer laser
Inventor: BERGMANN HANS-WILHELM PROF DR
IPC: B23K26/40
Filed: 1989-07-07
Abstract: Surfaces of mechanically worked metal parts are treated using an UV beam of a excimer laser. The surface is exposeq to the beam several times with the power beam flux density concentrated between +/- 10mJ/mm2 of the beam basic flux density so as to penetrate a depth of 0.01-1 micro-m. Pref. for cast Fe parts a power flux density of 1-30 power 102 W/cm2 pref. 5.10 power 7 W/cm2 with a wave length of 308 nm and a pulsed duration of 20-250 m sec. is used. The beam irradiates the part 1-40, pref. 1-10 times. For a casting esp. of AlSi alloy a flux density of 0.1-30.10W/cm2  0.5.107 0.1-30.10 power 7 W/cm2 esp. 0.5.10 power 7 W/cm2 with a wave length of 308 nm and pulsed duration of 20-250 n. sec is used. The beam irradiates the part 2-200 pref. 30-60 times. USE/ADVANTAGE - To stress relieve and/or remove surface cracks from a mechanically or electrochemically polished surface.  To smooth a microporous surface structure to a roughness of below 1 micro m. Is relatively inexpensive method to improve beams, strength and surface finish properties.
Patent DE-3925184-A1 (DE)
Title: Formulation of insecticide in form of paste
Inventor: KOERNER HANS-JUERGEN DIPL BIOL
IPC: A01N57/28
Filed: 1989-07-29
Abstract: Prepn. of insecticide in the form of a paste comprising thickening agent, an aliphatic or cycloaliphatic alcohol or ether and/or an aliphatic or aromatic carboxylic ester, and the active cpd. O,S-dimethylthiophosphoric ester amide or O,S-dimethylthiophosphoric ester-N-acetamide.  Also in the paste is a terpene oil, pref. alpha-pinene or myrcene in a concn. of 3-10%.
Patent DE-3926008-A1 (DE)
Title: Introducing soluble active material into spun fibres - esp. for the insertion of mulch fibres in plant cultures
Inventor: SOMMER KLAUS
IPC: D06M16/00
Filed: 1989-08-05
Abstract: Incorporation of soluble active substances (I) into nonwoven webs produced by agitating fibres with water jets is effected by adding (I) to the water. The fibres are, e.g., of cotton. (I) are fungicides, insecticides, surfactants or trace elements. USE/ADVANTAGE - The webs are esp. useful as mulching sheets in agriculture. The process is simple, readily automated, and provides a uniform distribution of (I) in the web.
Patent DE-3929301-A1 (DE)
Title: Overhead conveyor with carriage - has C=section rail, and carriage is driven over horizontal regions by friction belt
Inventor: SCHROTT HUGO
IPC: B65G19/02
Filed: 1989-09-04
Abstract: The overhead conveyor has the articles being conveyed suspended by bars (8,10) from a carriage (1) with two rollers (2,3).  The carriage runs on the flanges of a C section rail (4) which has sloping regions (14") and horizontal regions (4'). The carriages descend the slopes under gravity but are driven along the horizontal regions (4') by friction.  The upper bar (8) attached to each carriage has a horizontal friction plate (6) which rests on a driving belt (13) when the carriage is in the horizontal region of the conveyor.  The friction plate (6) is so positioned that when it is in contact with the driving belt (13) the carriage rollers (2,3) are lifted clear of the flanges of the C section rail.  The carriages can be held stationary if required with the driving belt slipping over the friction plate (6). USE - Overhead conveyor with friction belt drive system.
Patent DE-3931404-A1 (DE)
Inventor: EHRMANN BERND
IPC: H04N3/223
Filed: 1989-09-20
Abstract: The invention relates to a horizontal deflection stage which is provided with a picture width control. An adaptation of the respective desired picture raster to the screen size and a stable picture width with changing horizontal frequency can be achieved by the fact that the charging choke (LS) of a horizontal deflection stage has applied to it a horizontal-frequency pulse width signal (U) which is determined by a pulse width controller (PR) by comparing a controlled variable (lp) proportional to a deflection current (Ia) with a reference variable (UR) proportional to the picture width. The invention is applied in television engineering. <IMAGE>
Patent DE-3935226-A1 (DE)
Title: Fluidised bed grinding installation for brittle material - has grinding zone connected to storage vessel by an overflow duct
Inventor: VERCH HARTMUT DIPL ING
IPC: B02C23/12
Filed: 1989-10-23
Abstract: A fluidised bed for grinding brittle material by means of reflected jets of gas, has a hopper (7) to receive the material to be ground. The material is transferred to a storage vessel (4) by a screw conveyor (8). A second screw conveyor (6) transfers the material to the grinding zone (2) which is below the sifting zone (3). The grinding zone (2) is surrounded by an annular chamber (10) which is connected by radially arranged nozzles (9) to  the grinding zone (2). The grinding zone (2) is held to a constant level by means of an overflow duct (5) which has a sharp edge formed at its entrance and which leads back into the  storage vessel (4). USE - Grinding of brittle material.
Patent DE-3942838-A1 (DE)
Title: Concrete traffic guide wall - is made in sections which can be joined end to end via coupling rails
Inventor: RAUSCH PETER ING
IPC: E01F9/669
Filed: 1989-12-23
Abstract: The traffic guide wall is formed from concrete sections (1) which can be joined end to end. Each section consists of a concrete element wiht a vertical T or C-section (2), embedded at each end, with the two sections welded to opposite ends of a metal frame (3), which is also embedded in the concrete. The sections can be joined end to end in either of two ways. Sections with a T shape at one end and a C shape at the opposite one are joined by fitting the T section of one element into the C section of the adjoining element. Sections with C shape at each end are joined by fitting shanks of an I-section (4) into the C-sections. ADVANTAGE - Improved traffic safety independent of individual element destruction.
Patent DE-4002566-A1 (DE)
Title: Tyre monitoring system, e.g. for measuring pressure temp. - has vacuum chamber press sensor, bimetallic ring for full temp. compensation
Inventor: HAUBNER GEORG ING GRAD
IPC: B60C23/20
Filed: 1990-01-30
Abstract: The vehicle tyre monitoring system contains a press. sensor (1) consisting of a vacuum chamber (11) which has a counter contact (10) adjustable using an adjustment and securing ring (9) and a bimetallic temp. compensation ring (8). The sensor transfers an HF signal via a switch contact (10) from one coil to another coil when the desired tyre press. is exceeded. A speed sensor signal is superimposed on the coil signals at different frequencies with different bandwidths via a rotor.  The wheel speed sensor transforms an a.c. voltage supplying the wheel electronics whilst at rest. USE/ADVANTAGE - E.g. for measuring tyre press., temp., applied forces and wear. Full temp. compensation is achieved.