baber/WOPTO huggingface dataset:
Patent DE-4217524-A1 (DE)
Title: Recovering isocyanate-reactive components from polyurethane(s) and polyurea(s) - by heating with water, amine(s) and opt. mono, di or poly:hydric alcohol(s), and distilling to recover prod. and amine etc.
Inventor: LIMAN ULRICH DR
IPC: C08J11/14
Filed: 1992-05-27
Abstract: Hydrolytic liquefaction of polyurethanes, polyurethane-ureas and/or polyureas (A) comprises (1) heating (A) with (B) water, (C) amino cpds. of mol. wt. 17-399, opt. (D) mono-, di- and/or polyhydric alcohols of mol.wt. 32-250 and opt. (E) other mono-, di- and/or polyhydric alcohols of mol.wt. 251-20,000 for 1 min. - 72 hrs. at 120-250 deg.C, with wt. ratio (A):(C+D) = (3:1)-(1:10), and (2) at least partly removing components (C), (D) and (E). (A) Are polyurethane-urea and/or polyurea plastics prepd. by the RIM process from (a) MDI-series isocyanates, (b1) DETDA or (b2) ethylene glycol and/or butane-1,4-diol, (c) polyether-polyols of mol.wt. 400-20,000 with terminal OH and/or amino gps. and opt. (d) normal additives, etc. (A) is first dissolved by heating with (C) and opt. (D) and (E), then water (B) is added dropwise to produce a steady evolution of gas. USE/ADVANTAGE - Provides a simple process for the prodn. of NCO-reactive components (I) from polyurethane-type plastic scrap, esp. based on MDI and/or TDI, by heating for short periods at relatively low temp. and atmos. pressure; the process enables max. recovery of (I) for recycling, with complete recovery of (C).
Patent DE-4221290-A1 (DE)
Inventor: SANO HISASHI
IPC: G10K11/178
Filed: 1992-06-29
Abstract: An adaptive control circuit 3 is responsive to a reference signal, i.e. an output from a sensor 2 which senses vibration from a vibration source 1, for generating a cancelling signal having a transfer characteristic inverse to a transfer characteristic of vibration from the vibration source to a human body. A loudspeaker 8 is responsive to an output from the adaptive control circuit for generating cancelling vibration. A microphone 9 senses an error between the vibration from the vibration source and the cancelling vibration from the loudspeaker and generates an error signal E indicative of the sensed error. The adaptive control circuit varies the inverse transfer characteristic by an amount corresponding to the error signal as well as by delaying the reference signal by a predetermined delay time period, so as to minimize the above error. The system is particularly suited for application in a vehicle. <IMAGE>
Patent DE-4221377-A1 (DE)
Title: Mfg. contoured spectacle lens - using initial shape of blank and required lens contour data to calculate position of second lens surface
IPC: B24B13/06
Filed: 1992-07-01
Abstract: A standard lens blank is profiled according to the required contour data held in a memory. The stored data set and the contour of the previously machined surface of the blank is used to calculate the position for the second surface of the lens and allow minimisation of the critical lens thickness. The second lens surface is correspondly machined, with subsequent grinding and polishing of the lens edge. The machine of the second lens surface and the lens edge may be affected via separate or the same machining device. ADVANTAGE - Avoids need for various stages, e.g. registration and storage of frame shape.
Patent DE-4221574-A1 (DE)
Title: Winding core for strip-form material - comprises easily foldable thin-walled tube with axially running fold lines on two diametrically opposed sides
Inventor: KUHNERT VOLKER
IPC: B65H75/10
Filed: 1992-07-01
Abstract: The winding core is so formed that in the usage state it is cylindrical and is made of cardboard material. In a surface area located between the fold lines it has at least one slot (4) running axially for securing the winding material. Also between the fold lines (2,3) is an area for bearing an address. USE - For winding plastic strip.
Patent DE-4227372-A1 (DE)
Title: Polycarbonate prodn. by continuous interfacial polycondensation from phosgene di:phenol(s) etc. - uses special reactor system with at least 2 minutes between 1st addn. of more alkali and addn. of chain cleavage agent e.g. phenol@
Inventor: WULFF CLAUS DIPL CHEM DR
IPC: C08G64/24
Filed: 1992-08-19
Abstract: Continuous prodn. of polycarbonates (I) involves (a) continuously mixing aq. alkaline phase (A0 and organic (B) in a system with a heat exchanger and a pumping loop, opt. using a mixing device, using as (B) a solvent for (I) which already contains the phosgene and, as (A), a mixt. of water aq. alkali and phenolic components, (b) forming a water-in-oil emulsion in the system, with loop temp. below 60degC and mean residence time in the heat exchanger/loop system = at least 2 minutes, and taking off the emulsion continuously via a reaction boiler (RB), and (c) passing the emulsion through tubular reactors equipped with mixing and delay zones, providing a total residence time of 2-30 minutes, to convert the emulsion into an oil-in-water emulsion. The novelty is that more alkali is added before the heat exchanger, the dwell time in reactor RB is at least 2 minutes., (pref. 2-15 minutes) addn. of chain cleavage agent (and opt. further alkali) only takes place after passing through RB, and addn. of catalyst (and opt. more alkali) takes place after a further 2-15 minutes. Pref. reagents are Bisphenol A or HIP-Bisphenol, phenol, p-tert.-butyl phenol etc. (chain cleavage agents), tris- or tetra-phenols (branchers), NaOH soln., N-ethyl piperidine or Et3N (catalysts) and phosgene, with CH2Cl2 (opt. with PhCl) as solvent. USE/ADVANTAGE - The above combination of reactor types, special emulsion conditions and method of addn. of alkali, cleavage agent and catalyst enables the continuous prodn. of (I) with mol. wt. 10,000-100,000, with readily reproducible relative viscosity which is constant over the prodn. period
Patent DE-4232376-A1 (DE)
Title: Heat exchanger with several tubes - has rubber seal formed as seal frame and projecting web between tube ends, web having sealing lip extending in longitudinal direction
Inventor: BERNLOEHR PETER
IPC: F28F9/02
Filed: 1992-09-26
Abstract: The heat exchanger has a water tank, located on a tube base, and is sealed by a rubber seal (17) consisting of a seal frame (18), and a web section (19), which is located between the tube ends. The web extends between two parallel side edges of the tube base, and is fastened to the seal frame with its ends only. The side of the web facing the tube base has at least one sealing lip, which extends in longitudinal direction of the web. The sealing lip is pressed against the tube base by the dividing wall, and yields sidewards relative to the pressure direction of the wall. ADVANTAGE  - Simple and economical construction. Sealing of dividing wall is guaranteed, even if the tube base bends.
Patent DE-4232759-A1 (DE)
Title: Device for filling sausage skins, esp. natural gut skins - has gathered or compressed skin on exchangeable tube which fits over delivery pipe of sausage filling machine
Inventor: UHL MARKUS
IPC: A22C11/02
Filed: 1992-09-27
Abstract: In the device, the sausage skin is placed in a gathered form on a tube which is then fitted over the filling pipe and sealed by an adapter and a connecting nut to the outlet of the filling machine. The sausage skin slides off the tube as it receives the sausage filling coming from the filling pipe. A means is pref. provided for stopping the flow of sausage filling from the machine so the filling pipe can be exchanged. USE/ADVANTAGE - In the filling of sausage skins, and especially of natural gut skins. The device is effective, saves time and is convenient to operate, and it can readily be fitted to existing sausage filling machines.
Patent DE-4233804-A1 (DE)
Title: Control of permanent magnet synchronous machine - adjusting pilot angle between armature current and voltage in proportion to output of phase current regulator
Inventor: GIESSLER FOLKE DR ING
IPC: H02P21/08
Filed: 1992-10-07
Abstract: To control a permanent magnet excited synchronous machine (1), a pilot angle is adjusted between the armature current and voltage (independently of the current waveform) in proportion to the output of a phase current regulator (9) so that the machine is driven according to the load conditions either in the normal regime or in the field-weakened regime. The output signal from the current regulator has a degree of modulation and is used to control a pulse width modulator (13). The pilot angle is adjusted according to an algorithm. The initial setting for the current regulator depends on the pilot angle and the rotor position. ADVANTAGE - Improved control procedure.
Patent DE-4233995-A1 (DE)
Title: Time switch e.g. for staircase light - has period of normal illumination, then one of lower or alternating illumination, before final extinguishing
Inventor: WUNSCH GUENTHER
IPC: H05B37/02
Filed: 1992-10-09
Abstract: A domestic lighting circuit (4), eg, for a staircase, is connected to a timer (1). The timer is activated by control lead (2) via switches (3). After a certain time period (T1) without activity from any switches, the light output is reduced to a lower constant level for a further time period (T2), and then the lights are automatically cut out. Alternatively, during the second time period, the light may vary periodically. The lengths of the two time periods are adjustable. ADVANTAGE - Gives visible warning that light is shortly to go out.
Patent DE-4235022-A1 (DE)
Title: Blow:room installation - has opening and mixing equipment for fibres in a hopper fed by an airstream
Inventor: PINTO AKIVA DIPL ING
IPC: D01G13/00
Filed: 1992-10-16
Abstract: Machinery to mix and open the tufts of fibrous material carried in an airstream through ducting into a hopper. This has extraction screens to permit the airstream to deposit the fibre into a lower section having the opening equipment. The screens are adjustable, and have air compartments to direct the airflow. ADVANTAGE - The ducting is arranged with angles to permit the airflow to cause turbulence and the tufts are extracted in a mixture forming layers at an angle so that the opening rollers pick up the layers to again create a mixing process.
Patent DE-4239622-A1 (DE)
Title: Crane and combined platform for handling building stone - three sectioned crane arm deployed from portable platform which used for storing and moving building stone
Inventor: SCHOCH ROLF
IPC: E04G21/22
Filed: 1992-11-26
Abstract: The crane arm (4) consists of at least three sections (10-12) and is deployed from a moving rig (1). Underneath the crane arm and rotating with the crane support is a platform (3) for storing building stone. The crane arm sections can rotate respectively to one another. A mortar storage tank (27) and mortar delivery hose (25) is also located on the storage platform. ADVANTAGE/USE - For construction work with large and heavy building components.
Patent DE-4244378-A1 (DE)
Title: Printing machine for flat or shaped surfaces
Inventor: FESLER MANFRED
IPC: B41F17/00
Filed: 1992-12-29
Abstract: The printing pattern is etched, in the surface of a flat printing block (2), from which surplus ink is removed by a sliding wiper head (7). An elastomer punch (18) of silicon rubber, above the block works at right angles to it. The head has two blades (8) one behind the other in its travel direction and inclined in opposite ways. It tilts on an axis (6) at right angles to its travel direction, so that only the rear blade bears against the block surface. An ink-feed mechanism can be mounted between the blades, comprising a reservoir in the top part of the head, with a drilling at the bottom leading to a brush extending over the full width of the block and working against it.
Patent DE-4304267-A1 (DE)
Title: Recording information on optical disc memories - using sectors structured with pre-formulated range followed by data region having blocks of data and synchronising signals
Inventor: FUKUDA YASUSHI
IPC: G11B7/0045
Filed: 1993-02-12
Abstract: Information recorded in formatted sectors, each identified by an address. The preformatted range of the sector (400) embraces a sector marking (410), a synchronisation pattern (411) providing input to a phase locked loop and an identification range (412). The data range (401) consists of a synchronisation pattern (420), a synchronising signal (421) followed by data blocks (422) that alternate with the synchronising signals. End blocks are assigned error correction codes (424). ADVANTAGE - Reduces fluctuations in level of reproduced signal which can appear when code data are recorded using a coding rule not possessing the characteristic freedom of d.c. voltage components.
Patent DE-4307519-A1 (DE)
Title: Reflector for synchrotron radiation
Inventor: HOTATE SHIROU
IPC: G02B5/08
Filed: 1993-03-10
Abstract: A reflector for synchrotron radiation (SOR) has a base (10) made of a heat-proof ceramic material. A first surface coating layer (20) is moulded on one surface (12) of the base (10) and has a first surface. To improve the reflection capability of the reflector it is proposed that the first surface of the first SiC surface coating layer (20) is a first smoothed surface (24) and that at least one second further SiC surface coating layer (40), whose outer surface (44) is smoothed, is formed on the smoothed surface (24) (Fig. 2). <IMAGE>
Patent DE-4310604-A1 (DE)
Title: Mfg. field emission cathode for flat screen use - applying series of processes to form successive solid state layers and cathode tip
Inventor: NAKAMOTO MASAYUKI
IPC: H01J9/02
Filed: 1993-03-31
Abstract: A field emission cathode is formed in a series of operations that begins with the formation of a pyramid shaped hole in a substrate of silicon. Successive layers of a silicon oxidised isolating layer (13), a gate electrode layer (19), emitter layer (14) and a pyrex substrate (17) are added. The pyramid shaped emitter (18) is formed by removing the actual silicon substrate. The gate electrode layer is formed by coating with a photo resist material followed by etching. ADVANTAGE - Excellent reproducibility of form. Allows precision control of spacing between gates and emitters. Avoids additional thickening of cathode construction while achieving high productivity.
Patent DE-4310663-A1 (DE)
Title: Frame for a collapsible child's or doll's pushchair or pram
Inventor: WEGNER ALBERT
IPC: B62B7/10
Filed: 1993-04-01
Abstract: Frame for a collapsible child's or doll's pushchair or pram with a distance between the wheels which cannot be changed due to the longitudinal spars to which an erectable frame is coupled and to which supporting struts are attached in a manner such that they can swivel, which struts are mounted in a longitudinally displaceable manner on the particular longitudinal spar by their other end. Between the ends of the supporting-strut pairs, on the one hand, and the front longitudinal spars, on the other, there is mounted, in a manner which allows it to swivel, a scissors frame, which is arranged between the pairs of longitudinal spars.
Patent DE-4310914-A1 (DE)
Inventor: FLEISCHER MAXIMILIAN DR
IPC: G01N27/12
Filed: 1993-04-02
Abstract: For the continuous monitoring of the concentration of methane in the air, gas sensors using semiconducting metal oxides and heat-of-reaction sensors are usually used. Because of the observed cross-sensitivity to other reducing gases, the selectivity of this type of sensor for methane is not particularly high. The aim of the invention is to widen the range of applications of prior art metal-oxide gas sensors. This aim is achieved by virtue of the fact that, at temperatures within the range 700 to 850  DEG C, oxygen-sensitive, semiconducting metal oxides such as Ga2O3 are extremely sensitive to methane, and no significant cross-sensitivity is observed to other reducing gases such as hydrogen or carbon monoxide. In addition, a high water-vapour concentration in the air has no effect on the conductivity of these metal oxides. Within the stated temperature range, Ga2O3, TiO2, Fe2O3, CeO3, SrTiO3, Nb2O3 or HfO2 sensors can thus be used as highly selective methane detectors. The invention is applicable to the detection of methane in the air.
Patent DE-4313069-A1 (DE)
Title: Bowl-type vase
Inventor: APPELRATH HELMUT
IPC: A47G7/06
Filed: 1993-04-21
Abstract: The invention relates to a multi-part vase, in which the upper part can be pulled a long way out of the lower part (base part), the upper part additionally being held and enclosed by a bushing piece, located at the vase bottom, of a sleeve. As a result, an additional water reservoir is created, of which the transition from the outer chamber to the middle of the vase (vase extension) ... the vase upper part is made possible by the openings present in the bushing. In addition, by removing the upper or middle part, the vase can be used as a bowl-type vase or step-vase. The removed upper part with vase-closing ring can be accommodated externally in the shaft at the bottom of the vase provided therefor and thus ensures high stability.
Patent DE-4315652-A1 (DE)
Title: Swaying chair
Inventor: OLBRICH STEFAN
IPC: A47C3/025
Filed: 1993-05-11
Abstract: The invention relates to a swaying chair. The swaying is made possible by virtue of the fact that the chair is supported in the rear region by one or more compression springs instead of the rigid chair legs.
Patent DE-4323409-A1 (DE)
Inventor: FRIEBE WALTER-GUNAR
IPC: C07D311/18
Filed: 1993-07-13
Abstract: PCT No. PCT/EP94/02251 Sec. 371 Date Mar. 14, 1996 Sec. 102(e) Date Mar. 14, 1996 PCT Filed Jul. 9, 1994 PCT Pub. No. WO95/02588 PCT Pub. Date Jan. 26, 1995Use of compounds of formula I    <IMAGE>  (I)  in which R1, R2, R3, R4, Y and Z have the meanings stated in the claims, tautomers thereof as well as their salts with non-toxic acids or bases for the production of pharmaceutical agents having an inhibitory action on PLA2 in addition to compounds of formula I in which X does not denote a valency and processes for the production thereof.
Patent DE-4325101-A1 (DE)
Title: Measuring beaker for liquids
Inventor: PRESSL KLAUS A
IPC: G01F19/00
Filed: 1993-07-27
Abstract: There is a measuring beaker in which a beaker container 1 has a bottom region 6, a central region 5 parallel to a handle piece 3 and a top region 4 having an outlet nozzle 2, and in which the beaker container 1 has an outer circumference seen in cross-section, the outlet nozzle 2 is directed obliquely upwards to the side, the free end of the outlet nozzle 2 protrudes relative to the front outer contour 22 of the beaker container, and the beaker container 1 has, with the wall 20, a spacing from the handle piece 3. In this case, it is desirable for the stability of the measuring beaker to be improved in respect of the laterally projecting outlet nozzle. This is achieved in that the cross-section of the beaker container 1 determining the outer circumference is elongated and flattened in the direction handle piece 3 to outlet nozzle 2, the wall 20 having a spacing from the handle piece 3 is indented in the manner of a step, and the bottom region 6 of the beaker container 1 is extended up to the handle piece 3, and in that the bottom region 6 of the beaker container 1 projects laterally relative to the central region 5 below the outlet nozzle 2, and the beaker container 1 is drawn in relative to the projecting bottom region 6 towards the vertical centre 5 in respect of its front outer contour 22. Owing to the extension of the bottom region on the side opposite the laterally protruding outlet nozzle, the beaker container filled with liquid is heavier on this side. The centre of gravity of the filled measuring beaker ... Original abstract incomplete. <IMAGE>
Patent DE-4334419-A1 (DE)
Title: Surgical aid
Inventor: HACKLAENDER ANDREAS DR MED
IPC: A61B17/00
Filed: 1993-10-08
Abstract: A surgical aid (1) is used for introducing pointed and/or sharp surgical instruments (2) into the body of a patient and for positioning these instruments at an operating site. It has a shaft part (6) with handle (7) and, at the distal end area of the shaft part, a holding device (8) for at least one surgical instrument (2). A protective covering is also provided which is formed by a sleeve (9) and which in the covering position covers the pointed and/or sharp ends of the surgical instruments (2). In the working position, this protective covering can be removed from the handle area. <IMAGE>
Patent DE-4335717-A1 (DE)
Inventor: GOEBEL THOMAS DR
IPC: D06P3/24
Filed: 1993-10-20
Abstract: Aromatic polyamides are dyed with reactive dyes after being pretreated with a solution of an organosilicon compound of formula (I) or (II) <IMAGE>
Patent DE-4336488-A1 (DE)
Title: Composite anchor
Inventor: OETTL REINHOLD
IPC: E21D21/00
Filed: 1993-10-26
Abstract: In order to provide a composite anchor which is suitable for tension zones and is configured such that, even if there is a crack running through the bore, the bonding composition is not detached from the bore wall and the composite anchor is held securely, despite the fact that it is of a conventional anchor diameter, the invention proposes a composite anchor which can be anchored in a bore by means of a bonding composition and exhibits an anchor rod (1) which is provided with a thread (5) over the part which is introduced into the bore, characterised in that, in the region of the thread (5), the anchor rod (1) is enclosed by a sheet (15) which rests against the anchor rod (1) and consists of a wear-resistant material which adheres poorly to the anchor rod (1), and provision is made for an anti-rotation means which prevents displacement of the sheet (15) with respect to the anchor rod (1) when the composite anchor rotates about the longitudinal axis of the anchor rod (1). <IMAGE>
Patent DE-4337964-A1 (DE)
Title: Electrical hybrid accelerator for a special munition
Inventor: MAAG HANS-JUERGEN DIPL ING
IPC: F41A1/02
Filed: 1993-11-06
Abstract: The invention relates to a tubular firing device having a special projectile, the propelling powder gases being reheated continually, triggered by the special projectile passing through the barrel.
Patent DE-4341196-A1 (DE)
Title: Shower head with water supply handle - has flow limiting nozzle in inlet section of water supply line
IPC: B05B1/16
Filed: 1993-12-03
Abstract: The handle (1) forms the water supply line (2), and a shower screen (9) is fitted over the water outlet aperture. In front of the screen an air feed line (6) opens into the water supply line. The latter is fitted with a flow limiting nozzle (3). The nozzle is located in the inlet section of the water supply line and opens into a directly adjacent injection chamber (4). Next to the latter, in the direction of the screen, is located a pressure increase and mixing chamber (7). In the direction of the screen, the mixing chamber has a conically widening contour. ADVANTAGE - Effective water saving without pressure drop in outlet region.
Patent DE-4404211-A1 (DE)
Title: Car roof luggage container with frame
Inventor: KEHL HEINZ
IPC: B63B35/73
Filed: 1994-02-10
Abstract: The container has a foldable cover and the frame is securable to the car roof luggage carrier by manually releasable fastening. The frame forms a sledge with sliding skids (4). Pref. the frame has transport wheels (12) which are swivelably and arrestably mounted in an operating position. The cover is foldably coupled to the frame via a hinge on the rear side of the container. Bottom struts (9,10) may interconnect the sliding skids. The frame contains support and transverse struts, while the cover may be in the form of an upholstered seat.
Patent DE-4404602-A1 (DE)
Title: Contrast controller for colour photographic paper printing
Inventor: ROECKLE GUENTER
IPC: G03B27/72
Filed: 1994-02-14
Abstract: A conventional printer is used with pref. three additional lamps of controlled brightness and duration behind red, green and blue filters. If necessary a fourth additional lamp may be provided with individually controllable brightness and duration, matched to the particular colour paper in use with weak basic filtering. This ensures uniform and simultaneous flattening of all three gradations. Individual colour gradations arising from the computed gamma values can also be controlled and smoothed selectively.