baber/WOPTO huggingface dataset:
Patent DE-3905124-A1 (DE)
Inventor: DEMUS DIETRICH PROF DIPL CHEM
IPC: C07J9/00
Filed: 1989-02-20
Abstract: Esters of 3 ???-hydroxy-5  alpha -cholestan-6-one to the general formula I   <IMAGE> in which R has the meaning shown in the documents of the description are used as crystalline liquid compounds. The oompounds are used as additives for mixtures with ferroelectric properties, which are used as a medium for producing rapidly switching optoelectronic components having storage properties for depicting figures, symbols and illustrations. After fusion, these substances form smectic and cholesterinic phases over a wide range of temperatures.
Patent DE-3915765-A1 (DE)
Title: Mfr. process for twin-chamber pressure pack - involves inner and other bodies with turned-in flanged edge
Inventor: STOFFEL GERD
IPC: B65D83/14
Filed: 1989-05-13
Abstract: When making a twin-chamber pressure pack with an outer body (1) enclosing the pressure-biassable inner body, an inner body (6) of fold-forming material is inserted through the opening (5) which has a flanged edge (10). Before adding the filling and attaching a valve in the mouth area the inner and outer bodies are connected together and have the flanged edge turned inwards. The cut edges are covered in the flanged edge. USE/ADVANTAGE - By turning the flanged edge inwards the contact heights can be more accurately determined and the resulting pack is absolutely tight.
Patent DE-3917348-A1 (DE)
Title: Take-down mechanism for circular knitting machine - has finely adjusted separate drive
Inventor: SCHERZINGER WERNER DIPL ING
IPC: D04B15/88
Filed: 1989-05-27
Abstract: A takedown mechanism for fabric produced on a circular knitting machine, having separate drive with a tension controller arrangement which modifies the takedown, by means of a release or brake system. ADVANTAGE - The system is economical. The output is infinitely controllable. The control is reliable.
Patent DE-3917740-A1 (DE)
Title: Counter discriminator circuit for frequency modulation - has pulse generator with quartz controlled clock pulse generator(s), and counter
Inventor: KIEMLE HORST DR ING
IPC: H03D3/04
Filed: 1989-05-31
Abstract: The circuit provides frequency modulation of a sime-shaped and FM oscillation (1) by deformation (KUF) into a rectangular oscillation (2) of identical frequency.  A pulse generator (1G) transmits pulses of preset width, with a start determined by the flanks of the rectangular oscillation. Behind the pulse generator is coupled an integrator (1E), at whose output an FM signal can be tapped. The pulse generator has at least one quartz controlled clock pulse generator (TG) and a counter (Z) by which the pulse width can be determined with quartz precision. ADVANTAGE - Improved precision and FM signal quality.
Patent DE-3924407-A1 (DE)
Title: Wallpapering table - has paste applicator above and clear of surface
Inventor: BAERSCHNEIDER LUDWIG
IPC: B44C7/04
Filed: 1989-07-24
Abstract: The wallpapering table (1) works with a paste-application (10), the two being so secured together that the unit is above and clear of the table surface. They can be secured together by two U-shaped brackets, one leg of each of the latter working in a drilling in the table plate, and the other in one in the unit. A distance-piece can be provided between the underside of the latter and the table surface. ADVANTAGE - Minimum overall length, with entire table surface available for paper.
Patent DE-3928807-A1 (DE)
Title: Wall-mounted paper roll holder - has torsion rod to press roll carrier clip towards the roll to brake the unwinding action
Inventor: GERBE HELMUT
IPC: A47K10/38
Filed: 1989-08-31
Abstract: The wall-mounted holder for a roll of paper has a spring component between the swing clip (1) and wall fitting (1). The empty paper roll carrier clip (2) is held by spring tension at least against the plane through the wall side of the fitting. (1). The spring component is a torsion rod (3) of plastics, pref. of polyurethane., fixed in a hollow journel (2) shaped at the fitting end of the clip (2) to engage in a holder (41) of the fitting (1) when the clip (2) is at the plane through the wall side of the fitting (1). The fitting (1) has a wall mounting (4) wtih a lateral holder (41) in the form of a threaded drilling (42) with a following shoulder (43) followed by a smooth drilling (44). ADVANTAGE - The assembly prevents uncontrolled unwinding of the paper from its roll, without the use of a lid exerting a braking action on the paper as it is drawn off.
Patent DE-3933341-A1 (DE)
Title: Bag for removing dog excrement - has mouth of bag fitted with wire frame, to stiffen it and hold it open
Inventor: FREIKAMP GUENTER
IPC: E01H1/12
Filed: 1989-10-06
Abstract: Dog excrement is hygienically removed by means of a bag (2) made of plastics. The mouth of the bag (2) is fitted with a wire frame (1) bent to the shape of a trapezium.  This frame (1) is pushed over the end of the bag so that the bag material is folded to form a cuff. A handle (3) is formed  integrally with the frame (1). The bag is placed on the ground near to the excrement which is pushed into the bag with the aid of a piece of cardboard. The bag is then closed and the frame pulled forwards to unfold the cuff.  The outside of the bag is thus kept clean and the bag can be sealed without soiling the hands. USE - Bag for removal of dog excrement.
Patent DE-3934198-A1 (DE)
Title: Sealing strip of flexible material for tunnel section joints - comprises one-piece profile of projecting anchors joined by membrane to body
Inventor: GRABE WERNER DR ING
IPC: E21D11/38
Filed: 1989-10-13
Abstract: The sealing profile (1) is made of flexible material. It is designed to fit into grooves in tunnel sections and consists of a one piece body (A) with projecting anchoring members (4, 5) joined together by a membrane (3). There may be a thickened region behind the membrane (3) with a series of perforations to increase its flexibility. The sectional thicknesses of the seating profiles are carefully chosen to give the required characteristics. USE/ADVANTAGE - The strength of the membrane corresponds to the average of the body members.
Patent DE-3938564-A1 (DE)
Inventor: LANGELUEDDEKE PETER DR
IPC: A01N57/18
Filed: 1989-11-21
Abstract: The agents of the invention, which contain: (a) herbicides from the group of imidazolines of formula (I) and (II) as claimed in claim (1) and possibly also phosphinothrizine or known analogues; (b) C10-C18-fatty alcohol polyglycol ether sulphates as wetting agents; and (c) the customary additives, make it possible, for the same effect, to use a surprisingly smaller quantity of active agents as against herbicidal agents without wetting agent (b).
Patent DE-3941004-A1 (DE)
Title: Water wheel with ventilation tube interconnecting two chambers - alternately water-filled and emptied through ports in regions of junction of cylinder wall and partition
Inventor: HEINECKER WOLFGANG
IPC: F03B13/18
Filed: 1989-12-12
Abstract: A hollow cylinder (1) rotating about its horizontal axis (3) is divided by a serpentine partition (2) into two chambers (10,11) which are filled and emptied alternately via ports (8,9). The tube (12) extends through the centre of the partition (2) which is assembled from two oppositely curved half-shells (4,5) of dia. equal to the radius of the cylinder (1). In the starting position one port (8) is fully open to atmos., and the other port (9) is closed at the bed of the stream (15,16). ADVANTAGE - Universally applicable appts. can be operated economically without complex construction or costly head regulation.
Patent DE-4000985-A1 (DE)
Title: Seal for conical seating in housing - has sealing surface forming part of conical section, with grooves
Inventor: BERNDZEN HANS KARL
IPC: F16K1/226
Filed: 1990-01-16
Abstract: The seal-is for a conical seating positioned in a housing.  It has a sealing surface which forms part of an outer surface of a cone-section (4) cut obliquely to the cone axis (5) of a straight circular cone (4). The sealing surface and/or the seating have grooves (6,7,8) produced by grinding, turning or milling.  The grooves (6,7,8) are parallel to the oblique intersecting plane. USE/ADVANTAGE - The seal gives a tighter sealing effect by having grooves in the sealing surface. -
Patent DE-4004778-A1 (DE)
Title: Combined burner and fan - has ignition device supported on radial arms which impart swirling motion to air-fuel mixture
Inventor: KOHLMANN HANS-ALBRECHT
IPC: F23D14/70
Filed: 1990-02-16
Abstract: The combined fan and burner has a combustion air duct (2) with a zone (3) of reduced dia. in which axially adjustable fuel nozzles (5) are mounted in a nozzle head (1).  The nozzle head (1) is  mounted on the downstream side of a baffle plate (7) which has  openings fitted with guide vanes (6) which impart a swirling motion to the combustion air. The burner combustion chamber (9) is enclosed in the flame tube (10) which is mounted coaxially with the air duct (2).  The ignition device (11) is mounted in the flame tube (10) and has three radial arms (13).  These arms are set at an angle to the flame tube azis so that an additional swirling motion is imparted to the mixture of air and fuel flowing into the flame tube (10). Ul - Omin urnr nd fn.  ( DW.ND.1/)
Patent DE-4007424-A1 (DE)
Title: Compact transmission with torque converter - has clutch operated by ring piston on torque converter housing
Inventor: HEIDEMEYER PAULUS DIPL ING
IPC: B60K17/02
Filed: 1990-03-09
Abstract: The transmission has a gearbox (4) connected to the engine (1) by a mechanical clutch (2) and a torque converter (3).  The pump wheel of the torque converter acts as the flywheel of the engine and supports the ring piston (15) which operates the clutch.  The pump wheel also drives an electric generator (9). The ring piston housing is mounted directly onto the torque converter housing, with the torque converter forming the rear wall of the piston housing. ADVANTAGE - Short overall length.
Patent DE-4008503-A1 (DE)
IPC: B08B3/04
Filed: 1990-03-16
Abstract: A device for storing and possibly transporting workpieces (5) comprises at least one tubular container (1) with a place for receiving a workpiece which can be introduced into the container (1) through a charging opening. The device of the invention is characterized in that one end face of the tubular container (1) (tube) has an inlet opening to which a fluid outlet connection (7, 8, 9) of a surface treatment device for surface treatment of the workpiece with a treatment fluid can be connected and the other end face has an outlet opening (3) for the fluid to which a fluid discharge line can be mounted.
Patent DE-4009773-A1 (DE)
Title: Individual adjustment for central heating boilers
Inventor: ABEL HELMUT
IPC: F24D19/10
Filed: 1990-03-27
Abstract: The method for individual adjustment of central heating boiler controller characteristics involves matching the inlet temp. to the current heat demand.  Individual data are entered into the controller to match the shape of the characteristic. The controller automatically sets the required controller characteristic using the data entered.  Data can be entered to set the level, inclination and base point of the characteristic.
Patent DE-4011658-A1 (DE)
Title: Anti-sound wave generator - incorporates at least fluidic amplifier with input and output connections
Inventor: BSCHORR OSKAR DR
IPC: G10K11/178
Filed: 1990-04-11
Abstract: At least one fluidic amplifier (1) is incorporated, which has at least one input connection (5), and at least two output connections (41, 42). To the input connection(s) is connected one end of a pipe conduit (2), the other end of which is open and in the proximity of the noise source (3). On the output connections, acoustic adaptors (6) are provided. The adjacent output connections (41, 42) radiate sound waves phase-displaced through 180 deg., and their radiation apertures of the acoustic adaptors are spaced by a distance which amounts to an odd number multiple of lambda/2. The acoustic adaptors (6) are lambda/4 Helmholtz resonators or funnel resonators. USE - Acoustic system to cut out periodically sounding noise.
Patent DE-4019863-A1 (DE)
Title: Hammer-mill bar elastic mounting - has dovetail protrusion on bar hinging in rotor recess containing elastic insert
Inventor: EIBS MANFRED DR ING
IPC: B02C13/28
Filed: 1990-06-22
Abstract: The elastic mounting is for the impact bar of a hammermill  or crusher in the rotor. The body of the bar has at its mounting point a dovetail-section protrusion (2), giving a large amount of free pendulum movement (9) in the recess (3) in the rotor disc (4). Elastic inserts formnig clamping members are fitted between the recess and the bottom of the bar. USE/ADVANTAGE - Simplicity, and damps out shock-loads on rotor  of hammer mill.
Patent DE-4027817-A1 (DE)
Title: Construction set for toy framework -  has joint blocks, which may be directly connected in straight line
Inventor: RINGELHAN FRANZ
IPC: A63H33/12
Filed: 1990-09-01
Abstract: The construction set toy comprises several joint blocks with a first number of plug holes, having axis on a common plane, and several rods, which are pushed into the plug holes. - The joint blocks can be connected directly along a longitudinal axis, which is at right angles to the previously mentioned plane. For this purpose, the blocks are conical, and each has a hole at the lower end, to accommodate the smaller top end of the next block.
Patent DE-4028409-A1 (DE)
Title: Sub-calibre artillery projectile -  has penetrator with guide structure around part of its length, and conical formation in part of rear side
Inventor: LUTHER HANS WERNER
IPC: F42B10/06
Filed: 1990-09-07
Abstract: The rear part area (22) of the penetrator (2) is fitted in a conical or cylindrical recess (50) in the guide structure (5), and a pin (20) connects to it via which the guide structure is joined to the penetrator. Between the pin and the conical part area of the penetrator is a theoretical breakpoint (21), and between the conical area and the guide structure is an air gap (52). In order to join the guide structure at its end (51) facing the penetrator, a round or conical section (23) is provided. The air gap (53) is filled with plastic pulp. USE/ADVANTAGE - As a further development of a sub-calibre projectile, providing an increased end-ballistic force and good target contact accuracy.
Patent DE-4028569-A1 (DE)
Title: Dielectric antenna - has dielectric filed space with dimensions specified w.r.t. wavelength
Inventor: DOMBEK KARL-PETER DR ING
IPC: H01Q19/09
Filed: 1990-09-08
Abstract: The dielectric antenna has a cylindrical dielectric body that has an overall length (L), diameter (D) and a dielectric filled internal space with an associated wavelength (ep). The relationship between the length (L) and wavelength is given as: L/Lep = ((D/Lep-0.6). (D.Lep-0.6)+(1.3...2.7)) 6/Qep, where Qep is the square of the relative dielectric constant. - The supply waveguide (2) is increased to a section (3) that has a diameter 1.1 to 1.4 times greater, and the length is 0.6-0.8 times the wavelength Lep.
Patent DE-4031395-A1 (DE)
Title: Trolley for large loads - with inclined load platform and rear surface frame with hand grip
Inventor: EBERLEIN HERBERT
IPC: B62B3/14
Filed: 1990-10-04
Abstract: The load support platform (10) is inclined to hold the loads against the sloping rear support wall. This is made from two uprights (17) supported against vertical upright pillars (5) which run into the horizontal handgrip (6). The upper end of the sloping support has a removable lopp (15) which faces over the trolley and which supports long items in the upright setting. The trolley has at least wheels and can be stacked into similar trolleys. The rear support and the upright supports can be simplified by a  single sloping structure. ADVANTAGE - Safe transport of variety of loads, simple construction.
Patent DE-4036155-A1 (DE)
Inventor: GERKEN MANFRED DR
IPC: C07B53/00
Filed: 1990-11-14
Abstract: The invention relates to anthracyclines with cytostatic activity and the formula I, which are optionally in the form of a salt of an inorganic or organic acid, <IMAGE>  in which     R<1> is hydrogen or a hydroxyl group,   R<2> is hydrogen, a hydroxyl group or an alkyloxy group (C1-C4), R<3> is hydrogen, a hydroxyl group or a structure of the formula II,   <IMAGE>   R<4> is CH2CH3, COCH3, COCH2OH, CHOHCH3 or CHOHCH2OH, R<5> is hydrogen, a hydroxyl group, a methoxycarbonyl group or a structure of the formula II, R<6> is hydrogen, an alkyl group (C1-C4), an allyl group, a benzyl group or mono- or dimethyloxy-substituted benzyl group, a tetrahydropyranyl group, R<7> is hydrogen, an alkyl group (C1-C4), an allyl group, a benzyl group or mono- or dimethyloxy-substituted benzyl group, and   R<8> is a structure of the formula III or IV, <IMAGE> and to a process for the preparation of these compounds, characterised in that an anthracycline derivative of the structure I in which     R<1>, R<2> and R<4> are as defined above, and R<3> is hydrogen, a hydroxyl group or a structure of the formula V,   <IMAGE> R<5> is hydrogen, a hydroxyl group, a methoxycarbonyl group or a structure of the formula V and   R<6> and R<7> are as defined above, is reacted with (R)- or (S)-glycidyl sulphonate.
Patent DE-4102391-A1 (DE)
Title: Evaluation by differentiation of sequence of measured values - applying newton algorithm to obtain tabular function of difference between successive measurements in two orthogonal directions
Inventor: HILL HEIDEBRECHT DIPL ING
IPC: G06F17/17
Filed: 1991-01-28
Abstract: In a function formed from the sequence of measurements their slopes are obtd. by differentiation and the distances between the adjacent slopes are found from the sequence of differential coeffts. These distances are compared with reference values formed from one or more preceding distances with the addn. of a max. allowed deviation. Distances are marked when the reference values are exceeded. A Gauss algorithm applied to the Cartesian co-ordinates (3) computes an ellipse (4). USE/ADVANTAGE - Geomagnetic field measurements in vehicular navigation systems, perturbed measurements can be distinguished unambiguously from unperturbed ones.
Patent DE-4109880-A1 (DE)
Title: Protection against rock fall in mine - comprises corrugated arched plates located across gallery just under roof, fixed to sidewalls on anchored brackets
Inventor: SONNTAG WERNER
IPC: E21D19/04
Filed: 1991-03-25
Abstract: Protection against rock fall in a mine comprises arched plates (2) set under the roof across the gallery, with their ends fixed to the sides of the gallery (1) on brackets (3) anchored (4) to the rock face. The plates are corrugated in cross section. USE/ADVANTAGE - The ends can be let into the rock face as an alternative to the brackets, but the latter method is preferred.
Patent DE-4111296-A1 (DE)
Title: Friction clutch adjuster, acting via axial bearing - has disc spring, tensioned between clutch plates, and clutch side axial bearing disc, with constant force adjusting range
Inventor: RICKELL ROBERT
IPC: B60K23/04
Filed: 1991-04-08
Abstract: A differential friction clutch has a clutch plate adjusting device (18), consisting of two rings (20,21), rotation of one ring (21) w.r.t. the other (20) causing it to move axially, acting via an axial bearing (25) on the clutch plates (29). A disc spring (50) is tensioned between the clutch plates and a clutch-side disc (26) of the axial bearing. The disc spring characteristic curve has a decreasing gradient, with the clutch plate adjusting range occurring in a second essentially constant force range. ADVANTAGE - The spring ensures both effective clutch disengagement and easy clutch adjustment.
Patent DE-4111766-A1 (DE)
Title: Liq. crystal mixt. with wide nematic phase range etc. - contg. one or more opt. substd. alkyl 1,4-cyclohexylene bis:phenylene cpds. with ethylene linking gp.
Inventor: COATES DAVID DR
IPC: C09K19/44
Filed: 1991-04-11
Abstract: The novel feature in a liq. crystal medium based on a mixt. of polar cpds. with positive dielectric anisotropy is that one or more cpds. of formula (I) is present; where L1-3 = H or F; X = F, Cl, CF3, OCF3 or OCHF2; one of Q1 and Q2 = -C2H4- and the other is a bond; and R = alkyl, oxaalkyl, fluoroalkyl or alkenyl, each with up to 7C. USE/ADVANTAGE - The medium can be used in matrix-, twisted nematic-or super-twisted nematic-cells and has, compared to prior art liq. crystal compsns., a broadened nematic phase range, switchability at low temps. (e.g., for outdoor, automobile or avionic use), increased UV resistance, improved clear pt., lower viscosity at low temps. and improved heat stability. Viscosity at -30 deg.C is 600 mPa.s or lower, and at -40 deg.C 1800 mPa.s or lower, while anisotropy value (delta epsilon) is 3.5 or above and clear pt. is above 65 deg.C. The nematic range is -30 to +70 deg.C. (32pp Dwg.No.0/0)
Patent DE-4114951-A1 (DE)
Title: Loosening and removal of iron oxide from metal surface esp. vessel or pipe - comprises using alkali poly:amino-carboxylate, reducing agent and buffer to bind alkali ions
Inventor: LANGNER ALEXANDER DR
IPC: G21D1/00
Filed: 1991-05-08
Abstract: Loosening and removing Fe oxide from a metal surface, esp. a vessel and/or pipe, is effected with a mixt. contg. a salt (I) of an acid with chelating properties and a reducing agent (II). (I) is an alkali salt of a polyaminocarboxylic acid and the mixt. contains a buffer (III), which binds the alkali ions released by (I), pref. as soon as they are formed (claimed). (I) is the Na salt (Na3NTA or Na3EDTA) of nitrilo-triacetic acid (NTA) or ethylenediamine-tetraacetic acid (EDTA). (II) and (III) are the same substance, pref. NaHSO3 (pref. as satd. soln.), SO2, water contg. SO2 or gaseous SO2. Water contg. SO2 or gaseous SO2 is mixed with (I) or a (I) soln. before and/or during treatment, SO2 pref. being introduced until the water or soln. is satd. The mixt. has pH 7-10, pref. 8-9. It is also possible to use N2H4 as (II) and NaHSO4 as (III). USE/ADVANTAGE - The process is esp. suitable for cleaning pipes and steam generators in fossile fuel thermal power stations, heating systems and heat exchangers. Fe oxide alone and mixts. with hardness scale can be removed
Patent DE-4115302-A1 (DE)
Inventor: MAIER SIEGHART DIPL ING
IPC: F02D1/04
Filed: 1991-05-10
Abstract: In a centrifugal governor for an internal combustion engine with a fuel injection pump, the full-load torque-control can start by simple means even at low rotational speed in the idling phase and the governor exerts the lowest possible force on the cam follower (45) and the cam track abutment (54) realising the torque-control curve. In addition when the centrifugal governor (100) is at a standstill, the distance (m) between the spring abutment plate (13) and the flyweight (8) in the speed measuring mechanism (66) is greater than the distance (1) between the front end face (28) of the control capsule (31) and the annular abutment (29). <IMAGE>
Patent DE-4116750-A1 (DE)
Inventor: ZASCHKE HORST PROF
IPC: C07D405/12
Filed: 1991-05-23
Abstract: The invention concerns optically active 1,3-dioxolanes for use as dope additives in liquid-crystal mixtures, the dioxolanes having the general formula (I), in which n  >/=  2, R<1>, R<2> and R<3> may be an alkyl or alkenyl group, Q and B an aromatic ring system and Y a spacer group. Such compounds have a sufficient tendency to form mesomorphic phases, produce a high degree of twisting and produce little spontaneous polarization. They are capable of inducing cholesteric or optically active smectic phases, in particular Sc* phases. The compounds have the particular advantage that they are suitable for use in modifying ferroelectric liquid-crystal mixtures.