baber/WOPTO huggingface dataset:
Patent DE-4105383-A1 (DE)
Title: Extending application of turbo lawn mowers - uses vacuum in turbo housing to suck air from outside through extra extractor connection to suck in leaves as well as grass
Inventor: WAESSA WILFRIED
IPC: A01D34/63
Filed: 1991-02-21
Abstract: Extending the application of turbo lawn mowers uses the vacuum in the turbo housing through an extra extractor connection. During the mowing operation a vacuum arising in the turbo housing or mowing box an additional extractor provides for an air stream from outside to flow into the turbo housing. The air stream sucks in leaves, grass and other things through the extra extractor connection into the turbo housing, and from there into the machine collecting box or a special container. USE/ADVANTAGE - The cutter can be set to its lowest level and act as a collector for autumn leaves and other matter for the compost heap
Patent DE-4106331-A1 (DE)
Title: Fibre prepn. roller braking reducing run-down roller time - using induction motor as drive and stator winding connected through switch system to ac supply
Inventor: KUEPPERS ERNST WOLFGANG
IPC: H02P3/24
Filed: 1991-02-28
Abstract: To brake a rotating roller in an appts. to prepare fibre material for spinning, such as a bale breaker or cleaner or card, an induction motor is used as the drive (1) for the roller. The stator winding is connected through a switch system (2,6) to an AC supply (3) and with a unit (7) to deliver DC to connect the motor (1) selectively either to the AC or DC  supply. The drive motor (1) is connected to the roller through a belt or similar transmission. The DC supply (7) provides a variable DC, and is connected to a control (8). The switches (2,6) are connected to the control (8), which, in turn, is connected to an electrical timer. The control (8) is linked to a rotary speed  meter (13) for the roller and a rotary speed meter (14) for the  motor (1). The control (8) has a discontinuous or steady operation. The DC is used to brake the motor (1), and is adjusted throughout the braking action to vary its action either steadily or in stages according to the rotation of the roller or the rotation of the motor (1), to maintain a given ratio between the rotary speeds of the roller and motor. The DC supply (7) is connected to the control (8) for the fibre processing machine, such as a microcomputer. Data inputs (13,16,17) into the control (8) provide roller and motor rotary speeds, type of fibre material and quantity etc. A memory (18) at  the control (8) stores braking conditions as an algorithm, tabular form or curves. The brake unit has a breaker for the braking current. The control (8) is connected electrically to the operating units to open and close cleaning flaps or doors. ADVANTAGE - The system reduces the running down time of the roller, according to the braking conditions, with no wear or maintenance.
Patent DE-4112781-A1 (DE)
Title: Measuring wind direction and strength in layer near ground i.e. up to 100 to 200 m - releasing balloon filled with light gas and attached to coil of light thread for observation of direction and speed of unwinding
Inventor: HUEHN REINER DIPL PHYS
IPC: G01P5/02
Filed: 1991-04-19
Abstract: A method of measuring the strength and direction of the wind in layers near the ground involves using a balloon (1) filled with light gas as a buoyancy body. The balloon is attached to a light chord (2) which runs out from a spool (3) as the balloon rises. The rate of revolution of the spool is measured and compared with that for the balloon rising when there is no wind to determine the wind drift and resulting horizontal wind speed. USE/ADVANTAGE - Economical measurement and evaluation of data. Estimating landing points of non-dirigible balloons and airships as well as likely performance of parachutes.
Patent DE-4113758-A1 (DE)
Title: Circuit for transistorised microprocessor controlled telephone station - has control current switchable via microprocessor coupled by opto-coupler for speech circuit switch=on
Inventor: NIJMOLEN WILLEM
IPC: H04M19/04
Filed: 1991-04-26
Abstract: The microprocessor controlled telephone appts. has a twin alarm (waking). Its circuitry consists of a speech circuit preceded by a polarisation protection which, in turn, is preceded by a call circuit. A cradle switch change-over contact, an NSI contact, a speech circuit contact, and longitudinal transistor are interconnected in a control current circuit via a constant current sink. In the telephone appts. rest state, an alarm contact switches the call circuit for the twin alarm by an alarm contact. The control circuit (I), switchable via the microprocessor (MP) is derived by the alarm contact (WK), on switching the cradle switch switching contact (GU) and connecting the speech circuit (SPKR) via an opto-coupler for switching-off the twin alarm. USE/ADVANTAGE - Switching unit for different communications appts., with simple electronic design.
Patent DE-4116610-A1 (DE)
Title: Pipe coupling for high pressure small diameter pipes - has sealing ring with teeth which bite into pipe surface
Inventor: EHRKE DIETER DIPL ING
IPC: F16L19/02
Filed: 1991-05-22
Abstract: The pipe coupling is for small dia. high pressure pipes. These are connected to nipples (1) with a tapered bore (2) with a standard cone angle of 24 deg. The tapered bore (2) receives one end of a sealing ring (6). This sealing ring has internal circumferential ridges (9) which form teeth which bite into the pipe (8). The other end of the sealing ring has a conical end face which abuts against the conical surface (12) of the shoulder of the coupling nut (5). The teeth (9) have a ratchet tooth longitudinal profile and prevent any outward acial movement of the pipe (8). USE/ADVANTAGE - High pressure pipe coupling which can be used withstandard pipe fittings.
Patent DE-4119792-A1 (DE)
Inventor: SEIFERT JOSEF
IPC: A45C11/00
Filed: 1991-06-15
Abstract: In a hinged portable container (10) made from plastic, in envelope form, which is particularly suitable as a multipurpose portfolio, it is proposed that two half-shells (11, 12) be connected by means of a resilient one-piece spinal hinge (13) which has webs (13a) extending in the longitudinal direction, between which partial film hinges (15) permit problem-free opening and closing of the container (10). The container (10) can have mounted inserts which can be swung open in book form or can accommodate a ring-binding mechanism in its interior. <IMAGE>
Patent DE-4121170-A1 (DE)
Title: Universal shell system for construction of e.g. walls, pipes etc. - comprises recycled plastic waste gutter-shaped elements having right angled contact faces with grooves for sealing materials
IPC: E04H17/16
Filed: 1991-06-24
Abstract: The system comprises thick walled shells with ratio of the thickness to the average radius being 0.003 or greater. The shells consist of compacted or foamed, modified and/or reinforced recycled plastic or plastic waste esp. household waste. The shells have contact faces and sealing grooves and/or tongues and/or studs which allow them to be put together pref. with right-angled profiles by glueing, bolting, welding, etc. using sealing materials and/or clips etc.. USE/ADVANTAGE - Used to produce inexpensive pipes, walls surfaces, bends, framework, sheathing and other construction elements (claimed).
Patent DE-4126509-A1 (DE)
Title: Silicon nitride ceramic for high strength, hardness and fracture toughness - contg. titanium- or carbon nitride grains with small internal pore dia. for cutting and machine tool wear parts
Inventor: HERRMANN MATHIAS DR
IPC: C04B35/593
Filed: 1991-08-08
Abstract: Ceramic comprises 35-96 wt.% Si3N4, 3-50 wt.% titanium (carbo)nitride grains and 1-15 wt.% of a grain boundary phase. This phase comprises an oxynitride glass phase which may be fully or partially crystallised. Five percent or more of the titanium (carbo)nitride grains in the material have a pore with a core dia. less than 2 microns. Mfr. comprises mixing the silicon nitride, the grain boundary phase and another component, shaping the mixt. to form a green body and sintering the latter at 1750-2000 deg.C in a nitrogen atmos. at 0.1-100 MPa. The other component comprises 0-95 wt.% Ti (carbo)nitride and 5-100 wt.% TiH2. USE/ADVANTAGE - Toughness is higher c.f. conventional silicon nitride ceramics and material has less scatter. Pref. 20-100% of the Ti (carbo)nitride is used as a very fine powder with a specific surface more than or equal to 20 m2/g. A two-stage sintering process is used comprising (1) 1450 deg.C (max.) in an inert atmos. or vacuum; and (2) 1750-2000 deg.C. under 0.1-100 MPa nitrogen. In an example, silicon nitride powder (95% alpha modification) of mean grain size 0.6 microns and with an oxygen content of 1.6% was wet-mixed with 5 wt.% yttria, 2 wt.% alumina, 15 wt.% TiH2 and 15 wt.% TiC in isopropanol. 2% stearic acid was also added as a pressing aid. The mixt. was dried, pressed at 200 MPa and sintered for 1.5 hrs. at 1900 deg.C in a nitrogen atmos. at 5 MPa. The four-point bending strength and Vickers hardness of the prod. were 720 +/- 80 MPa and 13.2 GPa respectively.
Patent DE-4127450-A1 (DE)
Title: New liq. crystal and cyclohexyl-cyclohexyl di:fluoro:benzene and phenol cpds.
Inventor: REIFFENRATH VOLKER
IPC: C07C69/76
Filed: 1991-08-20
Abstract: Liq. crystal (LC) cpds. of formula (I) and (II), 1-(4-(trans-cyclohexyl)- trans-cyclohexyl) -3,5-difluorobenzene cpds. (IIA); and 4-(4-(trans-cyclohexyl) -trans-cyclohexyl) -2,6-difluorophenol cpds. (IIB) are new. In the formulae, X = H in (IIA) and X = OH in (IIB); R = H, 1-15C alkyl(ene), opt. with one CN or CF3 or at least one halogen substit., in which 1 or more CH2 gps. may be replaced by -O-, -S-, -CO-, -CO-O-, -O-CO- or -O-CO-O- but the O atoms are not linked directly; Z1 and Z independently = -CH2CH2-, -CH=CH-, -CC- or a single bond and one of Z1 and Z may also be -(CH2)4- or -CH=CH-CH2CH2-; A and A1 independently = trans-1,4-cyclohexylene, in which 1 or 2 non-adjacent CH2 gps. may be replaced by -O-, or 1,4-phenylene, opt. with 1 or 2 F and/or Cl substits., in which 1 or 2 CH gps. may be replaced by N; m = 0, 1, 2 or 3; o and s = O, 1 or 2, such that (s+o) = 2 or more; W = -O-, -COO- or a single bond; Q = -O-, -CH=CH- or a single bond; r = 1-7; t = 0-7; Y = F, Cl, CF3, OCF3, CHF2, OCHF2 or OCH2F; L = F.
Patent DE-4133314-A1 (DE)
Inventor: EBERLEIN HERBERT
IPC: G07F7/06
Filed: 1991-10-08
Abstract: The invention relates to an apparatus (1) for hiring trolleys. The apparatus (1) consists of a number of trolleys (2, 2') which are equipped with coupling parts (9) for coupling them together, and of a collection point (4). Each coupling part (9) has an insertion part (14) and a locking well (11). The trolleys (2, 2') can be uncoupled from the collection point (4) against payment of a coin deposit and can be coupled to this again after use, the coin deposit being refunded. To prevent the stacked row (22) of returned trolleys (2, 2') from increasing beyond a predetermined length, the invention proposes arranging at the end of the collection point (4) a magnet (7) which, when a trolley (2, 2') moves past, influences a blocking member located in the coupling part (9) of this trolley (2, 2'), in such a way that, as long as the coupling part (9) is in the effective range (8) of the magnet (7), this blocking member projects into the locking well (11) of the coupling part (9), so that the insertion part (14) of a trolley (2) located in front cannot be introduced into the coupling part (9) of a trolley (2') which is to be pushed in. This measure ensures an automatic limitation of the length of a stacked row (22). <IMAGE>
Patent DE-4201940-A1 (DE)
Inventor: HAUNER FRANZ DIPL ING DR
IPC: H01H1/0237
Filed: 1992-01-24
Abstract: Contact materials with the composition AgSnO2Bi2O3CuO have proved their worth, especially for low-voltage switching devices. Other metal oxides may be added to these materials. Besides the required useful life and a suitable over-temperature behaviour, such materials are also required to meet all requirements under short-circuit current stress. This is achieved by the invention in that the other metal oxide is separately added stannic oxide and/or iron and contains at least one element of the sixth sub-group of the periodic system. The other metal oxide of the sintered composite material of the invention is in particular ferric tungstate (FeWO4). Preferably, there is separately mixed SnO2 in combination with FeWO4. To produce such a sintered composite material, an internally oxidised alloy powder is made from an AgSnBiCu alloy and mixed with the powder of the other metal oxide or oxides and the powder mix is sintered into mouldings with a residual porosity < 1.5 %.
Patent DE-4202089-A1 (DE)
Title: Gas detection, determn. and/or combustion esp. in gas explosion prevention - includes using 1 or more combustion chambers into which vapour or gas is supplied
Inventor: WIESEMES JOHANNES DR
IPC: G21C19/317
Filed: 1992-01-27
Abstract: In a process and appts. for detection, concn. determination and/or combustion of one or more gases, vapours or their mixts. in combustion chambers, as described in DE3820187. The novelty is that one or more combustion chambers, into which a vapour or gas is dosed, are provided or introduced into a space in which the combustible or inert gas(es), vapour(s) or mixt(s). can enter. The dosed gas and/or vapour may comprise H2 and/or hydrocarbons, air and/or O2, explosion preventing gas or vapour, or combustible gas(es) and/or vapour(s). Combustion in the combustion chambers is pref. detected by sensors, providing signals which are computer evaluated to determine intensity and spectral compsn.. USE/ADVANTAGE - The process and appts. are esp. useful for detecting combustible gases and/or vapours, determining concn. levels relative to the upper and lower explosion limits or determining CO2 concns.. Measurements are unaffected by additional gases and/or vapours in the space, determinations of the amount of gases and/or vapours required to prevent explosion can be carried out and in-situ concn. measurements of explosion preventing gases (esp. CO2) can be carried out
Patent DE-4203975-A1 (DE)
Title: High pressure discharge lamp - has straight wire electrodes with end bent over in U=shape, wrapped around by wire helix
Inventor: BUNK AXEL
IPC: H01J61/073
Filed: 1992-02-11
Abstract: The high pressure discharge lamp with a rating of less than 400 W has a filling of mercury, metallic halide and at least one noble gas. Two electrodes are sealed in. Each one is made up of a straight shank of wire embedded in the case and the end of the shank is bent over a U-shape. The wire has a constant diameter. The direction of the rearward-facing U is that of the arc. Around the legs of the U is a helix of at least three close-wrapped turns of wire. The diameter of the wire used in the helix is between a half and a third of the shank wire. ADVANTAGE - Reduces lamp flicker and thus extends lamp life.
Patent DE-4206157-A1 (DE)
IPC: H01H1/50
Filed: 1992-02-28
Abstract: In order to create a thermostatic switch which consists of a small number of individual parts, can be produced simply in production engineering terms and as completely automatically as possible and is overall of simple design, the invention proposes a thermostatic switch which has two connecting parts which are mounted on a carrier part, one of which carries a fixed contact and the other of which is connected in a high-impedance manner to a moving contact which can be switched by a bimetallic element, the carrier part being a ceramic part and the connecting parts in each case engaging virtually completely around the carrier part in a force-fitting manner. 
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Patent DE-4210428-A1 (DE)
Title: Continuously adjustable transmission for bicycles - uses differential to combine variable rotary movements, to produce even rotary movement
Inventor: MUELLER REINHARD
IPC: B62M11/14
Filed: 1992-03-30
Abstract: The transmission uses a crank and crank arms (1) fastened to it, to transmit the torque to two triangular elements (4), which are offset through 90 deg. The elements are pivoted about the gudgeon pin axis (3). Toothed gear segments located in the triangular elements, roll off gear wheels (8), which are fixed to the crankshaft (2). The gears are connected via freewheel hubs (9) to two hollow shafts (11). The triangular elements are fixed via a ball bearing (5) on a ring groove (6), to transmit the movement of the elements about the pin axis. The ring groove is radially displaceable in one direction. The torques from the hollow shafts are collected in a differential (10), and transmitted to the chain wheel (12).
Patent DE-4212028-A1 (DE)
Title: Grain boundary-based Josephson element - uses epitaxial deposition of ceramic superconducting material on surface contg. step in height with suitable slope angle
Inventor: HOENIG H ECKHARD DR
IPC: H01L39/22
Filed: 1992-04-09
Abstract: The junction is made with ceramic oxide superconducting material deposited epitaxially on a substrate with a height step in its surface which produces grain boundaries at both upper and lower level. The feature is that the width of the superconducting material (3c) on the step (B) and (3b,13b) on the lower level (b1,b2) are much larger than that of the film (3a) on the upper surface (b1). This is pref. realised by defining 2 parallel structures (3,13) of which one (3) has a narrow track and the other a much wider track (13) which are connected together at least via the film on the slope (10). The width (b2) is pref. at least 3 times the width (b1). The angle of the slope with the horizontal planes is pref. at least 45 deg. At least one junction is used, with a slit, to form a SQUID device. USE/ADVANTAGE - The method to produce a grain boundary induced Josephson effect is more reliable and easier to control than currently available techniques. The effect operates only in the upper layer of the film and the effect can be avoided at the lower part of the slope by providing a large shunting area. The process allows SQUIDs to be constructed easily.
Patent DE-4214682-A1 (DE)
Title: Foldable partitioned container for storing writing and cleaning implements for blackboards - has stationary part fixed to wall and foldable part with insertable shell with partitions and ability to store water in closed or open positions
Inventor: KLIMAS MICHAEL
IPC: B43L21/00
Filed: 1992-05-02
Abstract: The foldable part (3) has an insertable shell (8) to accommodate the implements and has an area (14) for collecting the dirty water which is kept within the shell in either the open or closed position. The stationary part (2) is fastened by screws to the wall (6). The hinge link (7) is situated on the lower edge of the stationary part. The shell is made up of a base (9) and side walls (10,11,12), the one (12) nearest the link having an extended portion (13) which protrudes into the stationary part when closed. Separating elements (17) are set either transversely or parallel to the side walls (10). USE/ADVANTAGE - For separating dry and wet implements such as chalk, sponges, cloths etc. during storage. It keeps all the necessary implements together and stores water for the sponges and cloths.
Patent DE-4215436-A1 (DE)
Title: Germ redn. system for foodstuffs - uses heat while material is within protective gas
Inventor: KOSEL EDGAR
IPC: A23L3/28
Filed: 1992-05-11
Abstract: To reduce the germ content in materials, through the application of heat, the material is heated within a protective gas atmos. Also claimed is an appts. with a vacuum vessel (10) with a vacuum supply (19) at its interior, together with a supply (24) of protective gas. Before heating, the atmosphere round the material is pref. evacuated at a pressure of at least 0.03 atmospheres. The material is heated and the vessel is heated, to give a material temp. of at least 75 deg. C or 120 deg. C. The protective gas, free of oxygen and containing carbon dioxide, is heated. The flow heater (22), between the protective gas supply (24) and the vacuum vessel (10), heats the protective gas to at least 150 deg. C. and pref. 300 deg. C. The assembly has a system to count the germs in the material, continuously or at intervals to control the connection between the protective gas supply (24) and the vacuum supply (19). USE/ADVANTAGE - The heat treatment is especially for foodstuffs and vegetable matter, where the germs are effectively reduced by heat without affecting the nature or smell of the material.
Patent DE-4217142-A1 (DE)
Title: Water-tight motor pump, especially immersion pump - uses standard motor encased in sheet metal sleeve with plug sealing shaft passage and cable lead-through cover
Inventor: GENZ OTTO
IPC: F04D29/10
Filed: 1992-05-23
Abstract: The electric motor (2) is a caseless standard motor. The shaft passage sided end of the electric motor has a plug cap (6) which seats the shaft passage. A cover (7) is arranged at the opposite end of the electric motor. The cover (7) has a tight passage for cable lead-through. The cover and the plug cap are mounted on the sheet metal sleeve encasing the motor by being tightly connected to the sleeve. ADVANTAGE - Watertight encapsulated special motors; can be replaced by less expensive motors.
Patent DE-4221178-A1 (DE)
Title: Container trays dimensioned for standard pallets - can be stacked when empty by their feet and have openings to take others in the stack
Inventor: TEUBNER INGRID
IPC: B65D21/02
Filed: 1992-07-01
Abstract: The carrier trays, to carry and store foodstuff produce, plants and small industrial components and the like, are dimensioned to that when they are loaded, four trays next to each other cover the surface of a standard Euro pallet without projection and, when stacked empty, three trays can be placed on a standard Euro pallet without projection when stacked. The base, near the four feet (2) at each longitudinal side has at least two sets of generally L-shaped openings (3-6), in a mirror image to the lateral and longitudinal axes of the trays. USE/ADVANTAGE - The trays, which can be stacked, are for the carriage and storage of small items such as foodstuffs, plants and small industrial components. The container is simple and cheap to produce, meets standard dimension specifications, with a wide range of applications in commerce and industry, household or hobbies, taking up little space.
Patent DE-4224533-A1 (DE)
Title: Thermal printer with improved head mounting - has head unit mounted on frame locating in pivot mounted housing that is located by lever and which applies spring force to head
Inventor: MASUMURA YOSHINOBU
IPC: B41J25/34
Filed: 1992-07-24
Abstract: The thermal printer has the print paper (S) and the print ribbon (R) passed through the gap between a contact roller (P) and the thermal print head (11). The head unit is mounted on a carrier plate (10) that has a front projection (10C) locating in a slot (4) in a main housing and is supported at the rear by a spring loaded plunger (6) that engages a hole. The main housing support for the head assembly is in the form of a frame (2) with a pair of pivot mounts (3) and a front location pin (14) on an actuation linkage (13,15). A spring (8) applies a contact force to the print head.
Patent DE-4230183-A1 (DE)
Title: Hydromotor controller for crane - has safety valve in vent line responding to excessive pressure loading
Inventor: BRUNNER RUDOLF
IPC: F15B13/04
Filed: 1992-09-09
Abstract: The controller (S) for at least one hydromotor (H1,H2) has a flow regulator (Z) in the feed line (1) to a displacement slider (W). The slider is coupled to the hydromotors (H1,H2) via respective working lines (3,4), with load pressure sensor points (5,6) and control lines (9,10,11,12,13) providing a load-dependant control pressure. At least one safety valve (V1,V2,V3) is switched in response to a given load pressure or movement limit and lies in a section of the vent line (14,15,18,19,20). Pref. each safety valve (V2) acts as a pressure limiting valve. The other valves (V1,V3) comprise 2/2 way magnetic valves brought into the blocking position by energising a magnet (29). ADVANTAGE - Prevents excessive pressure loadings.