baber/WOPTO huggingface dataset:
Patent DE-4023474-A1 (DE)
Title: Cutting flat material like paper - involves fixed cutter and swinging cutter which presses against fixed cutter and swings away
Inventor: BARDUTZKY KLAUS
IPC: B26D7/26
Filed: 1990-07-24
Abstract: The machine for cutting flat material like paper has a stationary cutter (9) m associated moving cutter (32) which swings up and down and away from the fixed cutter (9). The moving cutter (32) swings on an axis between the direction of the cutting edge and the paper feed direction, and is flexibly pressed against the fixed cutter (9).  The axis (C) of the moving cutter (32) swings in the direction of the paper feed. USE/ADVANTAGE - The moving paper band does not have to stop for each cut.
Patent DE-4026304-A1 (DE)
Title: Seat or recliner head part - fits between backrest and back, and has flexible strip, two links and linkage system
Inventor: PLETZING KARL HEINZ
IPC: A47C17/13
Filed: 1990-08-20
Abstract: The seat or recliner has a head part (10) fitting in the space between the back-rest (1) and the back of the furniture. When pushed in, the top of the head-part (10) is joined to the furniture frame by at least one flexible strip (15). The head-part (10) is connected to the carriage (2) on both sides by a link (9) movably mounted on the carriage (2) and on the head-part (10). The head-part (10) has at least two parts (12, 13) joined by a linkage system (14). One end (13) on its side facing away from the linkage (14) is joined to the flexible strip (15), and the other end (12) on the side facing away from the linkage system (14) is joined to the links (9). USE/ADVANTAGE - The seat-cum-recliner has a shallower seat depth, adequate reclining length and is pushed in more compactly.
Patent DE-4029225-A1 (DE)
Title: Offset printing plate for printing with wiping water -  has covering layer with hydrophobic, hydrophobic and oleophilic components
Inventor: BAUSER HERBERT
IPC: B41N3/03
Filed: 1990-09-14
Abstract: The printing plate consists of five layers, a positive plate having a hydrophilic covering layer (1) with a hydrophilic and oleophilic layer (2) underneath, a photoconductor (3), a conductor (4) and a layer carrier (5). The covering layer is changed by development. The component of this layer are so distributed before latent image prodn. and development that the surface of the printing plate is hydrophilic for a positive plate and hydrophilic and oleophilic for a negative plate. A latent electrostatic image can be produced in the covering layer. After exposure and development the exposed areas are hydrophilic and oleophilic for a positive printing plate and hydrophilic and oleophilic for a negative plate. USE/ADVANTAGE - At low mfg. cost allows direct writing with low power laser beam and/or electron beams.
Patent DE-4030974-A1 (DE)
Title: Lid muscle exercising device - is for players of brass and woodwind instruments and consists of spring-loaded rod in tubular housing
Inventor: ENGELMANN HELMUT
IPC: G10D9/00
Filed: 1990-10-01
Abstract: The device for exercising the lips and facial muscles of the players of brass and woodwind instruments consists of a tubular housing (3) in which an axially sliding rod (1) with a rounded outer end, is fitted. The rod passes through a compression spring (3) which is fitted inside the tubular housing. The rod is retained by a support plate (4) and a tubular nut (5) which engages a screw thread on the end of the rod. The tubular nut enables the force, exerted by the spring, to be adjusted. USE/ADVANTAGE - Exercising of lips and facial muscles which is more effective than practising by playing the woodwind and brass musical instruments.
Patent DE-4042291-A1 (DE)
IPC: F01N13/08
Filed: 1990-12-31
Abstract: The invention discloses a flexible conduit element (1) for exhaust conduits of internal combustion engines for vehicles, having a bellows (2) made of metal and a metal hose (5) which is arranged coaxially in the latter and the outside cross section of which is smaller than the clear internal cross section of the bellows (2). At least a second braided hose (20) is arranged between the bellows (2) and the metal hose (5) and fixed by at least one of its ends within the associated bellows connection end. <IMAGE>
Patent DE-4104739-A1 (DE)
Title: Support unit for coupling mechanism - has support flange, with intermediate piece, screw fixtures and clamping discs
Inventor: GAY CHRISTIAN
IPC: F16D13/50
Filed: 1991-02-15
Abstract: The support-unit for a coupling mechanism (10), especially for a vehicle, is contained by a support-flange (11) with at least one intermediate piece. The support-unit is fixed to a shaft (13) by means of screw-fixtures (12) going through the flange (11) and intermediate piece. Attachments engage with the fixtures (12) and with the support-flange (11) and intermediate piece and consists of at least one clamping-disc. USE/ADVANTAGE - The single support unit enables the flange and intermediate piece to be clamped lengthwise between the heads of the fixtures and the attachments.
Patent DE-4105338-A1 (DE)
Title: High frequency oscillator using surface wave resonator reference - mixes surface wave resonator output with auxiliary oscillator and filters required frequency
Inventor: CZERNY HERIBERT DIPL ING
IPC: H03B21/01
Filed: 1991-02-21
Abstract: The frequency of the main oscillator (1) is synchronised by a surface wave oscillator (8) and modulated by a suitable input source (6). The modulated main oscillator output frequency is fed to a mixer circuit (2) whose second input frequency is derived from an auxiliary oscillator (3). The mixer output is fed through an adjacent frequency attenuator (4) before being applied to the antenna (5). Exact tuning of the carrier frequency is achieved by a tuning control (7) connected to the auxiliary oscillator (3). Frequency selective amplifiers and filters can be incorporated into the circuit. USE/ADVANTAGE - For battery powered transmitter/receiver devices. High efficiency, prolonged battery life.
Patent DE-4107009-A1 (DE)
Title: Roller bearing alignment unit - consists of straight rail with inner guide groove, and slide piece with outer guide groove, forming duct for balls
Inventor: ANADA KATSUYA
IPC: F16C29/04
Filed: 1991-03-05
Abstract: The roller-bearing alignment unit consists of a straight rail (1) of pre-set length and rectangular cross-section with a top, bottom and two side surfaces. The top of the two sides have each an inner guide-groove (1a) with circle-segment-shaped cross-section and parallel to the longitudinal axis of the rail. A slide-piece (2) has a crosswise part and two arms sticking up from it and with outer guide-groove (2a). The two guide grooves (1a, 2a) when assembled form a guide-duct containing a positioning and retaining piece (4, 6) with windows by which balls are held. USE/ADVANTAGE - The aligner is lightweight and economically produced and easy to assembly.
Patent DE-4108149-A1 (DE)
Title: Procedure for cleaning liquids and gases using biological filter - gas gives up contaminant to absorber, clean gas picks up contaminant in greater concentration before entering biological filter
Inventor: KOTTWITZ MAX A
IPC: C02F3/02
Filed: 1991-03-13
Abstract: In a new procedure for handling liquids and gases using one or more biological filters (12), the concentration of contaminants in the fluid is increased before it enters the filter. This process takes place in a cleaning device (10,11) located upstream of the filter, and consists of a desorption process. The cleaning device may operate alternately as an adsorber and a desorber. One or more cleaning devices each having a number of cleaning chambers may be used; or two cleaning devices (10,11) connected in parallel may be used and each operate in turn as an adsorber and a desorber. When a predetermined quantity of contaminants has been collected in one cleaning device, it is switched from adsorption to desorption operation and vice versa. The contaminant collected during adsorptive operation is given up during desorptive operation. At least a part of the fluid (13) is cleaned exclusively in the cleaning device which is operating as an adsorber, and is vented to the atmosphere (23,24). A part of the fluid flow is passed through the cleaning device which is operating as a desorber, and only this part (25,26) passes through the biological filter. USE/ADVANTAGE - Used in the cleaning of fluids, and especially exhaust gas or exhaust air, using a biological filter. Increasing the level of contamination enables the size of the biological filter to be reduced. The effectiveness of the filtration process is therefore improved.
Patent DE-4108723-A1 (DE)
Title: Shower cubicle partition with door at one side
Inventor: BREMM KLAUS
IPC: A47K3/36
Filed: 1991-03-18
Abstract: The shower partition partic. for corner entry showers includes a support column (1) whose upper end is fixed by a console bracket (10) on a room wall (7). The support column is mounted between the first opening area (29) and the adjoining second area (30). The support column can rest at the bottom on the ground or on the edge of the shower tray (4) where it is fixed by a further lower console bracket to the room wall.     Where the partition is an outwardly opening pivot door (5,6) the pivot bearing for the door is held on the support column. Where the partition is a multi-part sliding door one of the upper guide rails fixed on the room wall is supported by the support column. Shelves can be arranged in the area which does not open.
Patent DE-4114962-A1 (DE)
Title: Prodn. of wear-resistant multilayer coating on metal substrate - by plasma spraying thin layers with local variations in thickness so layer bind by penetrating each other
Inventor: PURSCHE GUENTER PROF DR
IPC: C23C4/137
Filed: 1991-05-04
Abstract: Mfr. of a multi-layer compound coating by vacuum plasma spraying of individual thin layers onto a metallic substrate. The layers have varying thicknesses and penetrate each other at both interfaces. The spraying compounds used are metals, pref. hard alloys and hard materials. Some of the layers consist of metal-hard material composites contg. varying proportions of hard material. USE/ADVANTAGE - Wear resistant, heavy duty, multi-layer coatings for metallic materials. The materials composition and the arrangement of the layers in the compound coating endow a compound coating with graduated combined properties.
Patent DE-4118681-A1 (DE)
Title: Membrane for anion sensor, esp. for determn. of nitrate concns. - has polymer matrix contg. phenanthroline-metal complex as anion ionophore and sulphonated tri:phenyl-methane dye as proton ionophore
Inventor: LUMPP RALF
IPC: G01N31/22
Filed: 1991-06-07
Abstract: A membrane (I) for a sensor system for determination of anion concns. is claimed, consisting of (a) an optically transparent (co)polymer matrix contg. a plasticiser, (b) a positively-charged anion ionophore which is able to bind anions reversibly and (c) a pH indicator as negatively charged proton ionophore; the novelty is that (b) is a phenanthroline-metal complex, (c) is a sulphonated triphenylmethane dye, and the plasticiser also acts as an inert, water-immiscible organic solvent for (b). (b) Is the nitrate salt of Ni(II)-tris-bathophenanthroline (II), and (c) is bromocresol purple (III); (I) also contains a sec. amine as weakly basic ion exchanger (IV). USE/ADVANTAGE - (I) Is useful in a test cell with a receiver for an anion-contg. sample liq., the receiver space being at least partly bounded by (I) (claimed). The invention provides a membrane for an anion-selective optical sensor based on co-extn. of anion-proton pairs into a solvent-polymer membrane; (I) can be made with non-pretreated, commercially available pH indicators, and is essentially selective for nitrate ions.
Patent DE-4120726-A1 (DE)
Title: DC drive for offset rotary printing machine - switches speed regulator between different regulation characteristics for different operating modes
Inventor: KUENZEL MATTHIAS
IPC: B41F13/004
Filed: 1991-06-22
Abstract: The DC drive (4) has a speed regulator (6) for the DC motor (5), which can be switched in dependence on the required printing mode, between a low regulation amplification and a soft regulation characteristic and a high regulation amplification and a hard regulation characteristic. Pref. the speed regulator (6) uses an operational amplifier (8) with respective input resistances (12.1, 12.2) for the actual and the required voltages (Usorr, Uist) and a parallel proportional resistance (9). The latter lies in series with an auxiliary proportional resistance (10) bridged by a parallel switch (11), controlled by a setting device (7).
Patent DE-4122520-A1 (DE)
Inventor: BOCHMANN HARALD DR
IPC: H04B7/08
Filed: 1991-07-08
Abstract: The invention relates to a control apparatus for an FM receiver having a plurality of antennas, the signal received by each antenna being mixed with a carrier generated in the receiver and the mixed signals thus produced added with controllable phase angle to form an aggregate signal, and the phase angle of the mixed signals to be added being in each case controlled as a function of the phase difference between the respective mixed signal and the aggregate signal. To optimise the control characteristic of the control device, according to the invention a delay section (200, 201) is provided which compensates for signal delay caused by selection means (93, 94). <IMAGE>
Patent DE-4124282-A1 (DE)
Title: Electromechanical drive for door - has clutch-driven gearing with programmed hold in open position and stored energy return drive
Inventor: RESSEL WILLI
IPC: E05F15/63
Filed: 1991-07-23
Abstract: The electric motor drives the gearing for the door opening via a clutch (7) and transmission. The clutch requires a preset torque to engage. The open position is held by a reduced motor torque and the closing drive is via a stored energy element (8). The motor can operate as a retarder during the closing drive. The open and closed positions are controlled by position sensors and the movement is damped. A data processing unit controls the operation using a stored program. If the drive fails then the door can be operated manually, against return (spring) drive. ADVANTAGE - Compact drive system can be retrofitted to existing doors, safe operation.
Patent DE-4125135-A1 (DE)
Title: Stereo-block polymers prepn. with long isotactic sequences - by (co)polymerisation of olefin(s) using catalyst contg. chiral gp. substd. indenyl- or tetra:hydro-indenyl-ligands
Inventor: ERKER GERHARD PROF DR
IPC: C08F4/642
Filed: 1991-07-30
Abstract: Prepn. of a stereoblock polymer by (co)polymerisation of an olefin of formula R5HC=CHR6 (I), at a temp. of -60 to 100 deg.C, pressure 0.5-60 bar, in soln., suspension or in the gas phase in the presence of a catalyst comprising a transition metal cmpd. of general formula R1R2R3R4Me (II) and an aluminium oxan where R5, R6 = H, 1-14C alkyl, or opt. R5 and R6 may be combined to form a ring. Me = titanium, zirconium or hafnium. R1, R2 = halogen, 1-10C alkyl, 6-10C aryl, 2-10C alkenyl, 7-40C arylalkyl, 7-40C alkylaryl or 8-40C alkenylaryl. R3, R4 = indenyl- or 4,5,6,7-tetrahydroindenyl-, opt. subtd. in the 4- and 7-positions with 1-4C alkyl, whereby the indenyl- or 4,5,6,7-tetrahydroindenyl gp. exhibits one or more chiral centres prepd. by reaction of the alkali indenyl with the tosylate of a chiral alcohol. USE/ADVANTAGE - The prepn. of the metallocene catalyst (II) is simpler than prior art and the method enables prepn. of stereoblock polymers with long isotactic sequences
Patent DE-4125707-A1 (DE)
Inventor: DEBON CHARLES
IPC: B24B13/06
Filed: 1991-08-02
Abstract: A device for making a bifocal contact lens is provided. It has a support (2) and an eccentric head (3) which is proportionately held by the latter and has a lens mount (4, 7) for accommodating a lens blank (8) to be machined. The lens mount (4, 7) is displaceable in the radial direction on the eccentric head (3) in a direction perpendicular to the axis of symmetry of the eccentric head (3). Furthermore, a carriage (9) is provided for holding a cutting tooth (10). The latter can be brought into position on a circular track around a mid point situated on the axis of symmetry and, additionally, in the direction perpendicular to the axis of symmetry in order to vary the size of the radius. So that the lens to be made has no step in the separating region between the distance area (19) and reading area (20), a control (16) is provided which is constructed in such a way that the cutter (10) has a first radius R1 for cutting the distance area (19) and a second radius R2 for cutting the reading area (20). After a first operation for fabricating the distance area, the reading area is cut in a second operation in such a way that the transition from the distance area to the reading area is achieved smoothly without formation of a step. <IMAGE>
Patent DE-4134871-A1 (DE)
Inventor: HAHN RAINER DR
IPC: A61C5/50
Filed: 1991-10-23
Abstract: A device for reconstructing or stabilizing damaged teeth is disclosed, in particular a pin or pin reconstruction system for reconstructing damaged dentine substance. The device is based on at least one appropriately designed pin (14) directly and/or indirectly associated to a filling device for filling or consolidating materials. The pins or pin superstructures are made for example of ceramic materials or plastic and contain no metals, with associated filling device or not.
Patent DE-4139959-A1 (DE)
Title: Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide
IPC: B32B27/06
Filed: 1991-12-04
Abstract: Electrically-heatable, flexible and transparent sheets (I) are claimed, esp. for rear windows of convertibles. (I) consist of plastic, esp. thermoplastic (II) and have an electrically conducting metal oxide layer (8,13) (III) with low surface resistance. (III) is a transparent layer 2-4 (pref. 3) microns thick, pref. indium oxide, applied to a polymer film (7, 11), pref. PET, PVC or PU (polyurethane) etc.. The outer, opposite surface of (I) is coated with a scratch-resistant layer (3, 4), pref. SiO2. (I) has (a) an upper PVC layer (5), a PU adhesive (6) and a polymer film (7; esp. PET) with a metal oxide layer (8), or (b) an outer PET layer (10) and a metal oxide (13)-coated PET layer (11), layers (10) and (11, 13) being bonded together with a PVB adhesive (12). USE/ADVANTAGE - A heatable rear window for cars is provided without using wire heating grids which are difficult to produce and install. The metal oxide layer enables rapid and uniform defrosting over the whole surface of the sheet.
Patent DE-4140899-A1 (DE)
Title: Water-soluble condensn. prods. prepn. for tanning agents - by partial oxidn. of glyoxal using excess nitric acid, then reaction with melamine, dicyandiamide, or (thio) urea and condensable cpds. etc.
Inventor: REUTHER WOLFGANG DR
IPC: C14C3/18
Filed: 1991-12-12
Abstract: Prepn. (A) comprises partially oxidising aq. glyoxal using nitric acid to give (B) which is then reacted with components (A), (C) and (D) to give condensn. prods. (I). (A) is 1 mol. melamine, dicyandiamide, (thio)urea or a mixt., (B) is 0.5-12 mols. (w.r.t. total molar amt. of components (B)) mixt. of glyoxylic acid and glyoxal in the molar ratio of 5:95-95:5, (C) is 0-3 mols. condensable cpd. contg. at least one phenolic or alcohol hydroxy gp., and (D) is 0-3 mols. condensable cpd. contg. an amido or amino gp. or an alkali metal or ammonium salt. Pref. 30-70 wt.% HNO3 is used in the partial oxidn. of glyoxal at 40-90 deg.C. USE/ADVANTAGE - (I) are useful as leather tanning agents (claimed). Also claimed is a process using (I) as tanning agents. The prepn. of (I) is a cheap, simple reproducible process. In an example, 1.04 g. sodium nitrite was added to 435 g. aq. glyoxal (40 wt.%) and the obtd. soln. was heated to 70 deg.C with 128 g. HNO3 (65 wt.%) being added over 5 hrs. THe soln. was then heated for 12 hrs. at 90 deg.C and then cooled to 60 deg.C. 63 g. melamine were added and the soln. was stirred for 1 hr. at 60 deg.C to give a clear, light-yellow soln. which was then spray dried (160-100 deg.C) to give 232 g. white powder. The powder was found to contain 2.60 mMol/g. glyoxylic acid, 2.60 glyoxal, 0.20 oxalic acid, 0.12 formic acid and 0.03 nitrat
Patent DE-4200854-A1 (DE)
Title: Packing method for sealing soft packs of tissues - has transfer and centring feed and pressure source to close up adhesive sides
Inventor: STARY CHRISTOF
IPC: B65B5/02
Filed: 1992-01-15
Abstract: The still open packet (1) is transferred by the transfer/centring unit and an adhesive spot (34) is applied to the front main surface (2). The closure flap (8) is sucked up flat against a folding device. The two side closure flaps (10,11) are turned in towards the removal opening and the closure flap (8) is pressed against the front main surface and the adhesive (34) applied thereon. The turning movement of the two side closure flaps is synchronised with the movement of the folding device. The suction and folding section is a flexible suction belt which can turn 90 deg. about its longitudinal axis. The contact pressure device has a wiper blade inclined to the longitudinal axis of the pack. ADVANTAGE - The pack is closed and sealed without folds to prevent the inclusion of air and dirt.
Patent DE-4208195-A1 (DE)
Inventor: RAUSCH WALTER DR ING
IPC: B01D39/16
Filed: 1992-03-14
Abstract: A self-supporting coated filter element for filtering dusts or aerosols out of the ambient air or suspended matter out of a liquid has a porous base body and a porous filtering layer applied on the face of the base body exposed to the contaminated ambient air or liquid. The base body is made of sintered plastics, the filtering layer is also composed of the same plastics and adhesively applied thereon. The plastic is polyethylene and the ratio between the average pore size of the microporous filtering layer and the average pore size of the macropores produced by sintering of the base body is comprised between 1:3 and 1:6.
Patent DE-4212792-A1 (DE)
Title: Operating conditions monitoring for electrochemical sensors - by measuring inlet of amplifier connected by switch to testing voltage at switch signal potential
Inventor: GUENDNER HANS MARTIN DR
IPC: G01N27/416
Filed: 1992-04-16
Abstract: The measuring inlet of an amplifier, connected to the sensor, is connected via a switch to a testing voltage. The connecting point (Pi) of the switch (Si) with the measuring switch is maintained at the same potential as the signal (P2) of the switch during measuring. The appts. for the monitor is also new. USE/ADVANTAGE - Used to measure the behavious of inner resistance of potentiometric half cells and the reference half cells.
Patent DE-4213090-A1 (DE)
Title: Electronic hose levelling instrument for calibrating horizontal surfaces - contains 3 sensors in arm of hose, one permanently coupled to liq., second as level sensor and third for sensing excess and coupled via resistors to pulsed sound source.
Inventor: SCHOEN FRIEDER
IPC: G01C5/04
Filed: 1992-04-21
Abstract: The instrument contains a liquid-filled tube coupled to a sound generator. Three electronic measurement sensors are arranged within the tube at one end. One sensor (4) is continuously in contact with the liquid inside the tube. The second (3) signals the achievement of the level on contacting the liquid and the third (2) signals when the level is exceeded. A light guide is provided within the hose  and is connected at one end to a pulsed light source of the same frequency as that of the sound generator and at the other end to a display. ADVANTAGE - Eliminates eg danger of transistor failure and inability to determine whether level has been reached or exceeded.