baber/WOPTO huggingface dataset:
Patent DE-4112098-A1 (DE)
Title: Installation for pumping paste-like material such as cement - has discharge pipe with dia. increasing in direction of outlet
IPC: F04B43/12
Filed: 1991-04-12
Abstract: An installation for pumping thick paste-like substances such as cement, consists of a suction pipe (1), a pump (2) and a discharge pipe (3). The discharge pipe (3) increases smoothly in diameter from its connection (4) with the pump to the pipe outlet (5). This form of discharge pipe reduces the risk of a blockage occurring in the discharge pipe and stopping the pump. The discharge pipe may have a length of 10 metres with an increase in diameter over its length of 10 to 100 per cent. The discharge pipe may be in the form of a flexible rubber hose. USE/ADVANTAGE - Pumping of substances such as liquid cement. The tapered discharge pipe reduces risk of pipe blockage.
Patent DE-4114544-A1 (DE)
Title: Weapon practice target disc evaluation device - uses diodes for optical evaluation of strike points relative to target disc grid zone
Inventor: GUNDEL BERND
IPC: F41J5/24
Filed: 1991-05-04
Abstract: The evaluation device uses a row of diodes (9) and an illumination device (13) transverse to the movement direction of a target disc web on opposite sides of the latter. The web is fed between a supply reel (1) and a take-up reel (3), at right angles to one another, via a deflection roller (2), with a series of spaced target disc grid zones (5) marked along its length. Each of the these zones is brought in turn into the target postion and is subsequently fed past the diodes for detecting the strike positions. Pref. the diodes are coupled to a computer providing a print-out of the strike points. USE/ADVANTAGE - Sports gun competitions. Robust. Immediate results of hits.
Patent DE-4121914-A1 (DE)
Title: Plastics sheet package for paper handkerchiefs - has overlapping ends joined by adhesive clear of free edge
Inventor: VOMBERG RAINER DIPL ING
IPC: B65D75/58
Filed: 1991-07-03
Abstract: The soft package of plastics sheet accommodates a stack of folded paper handkerchiefs, being rectangular and with narrow sidewalls. The sheet is passed round the stack in the transverse direction and welded into a hose, each end wall being formed by four folded flaps. The sidewall formed by the sheet ends contains an extraction opening. The overlapping sheet ends are joined by adhesive strip running in the lengthwise direction. This is at a set distance from the free edge of the outermost portion of sheet. From this edge two perforation lines run to points on the front or rear wall of the package. ADVANTAGE - Low cost, and good sealing without using adhesive tape.
Patent DE-4124663-A1 (DE)
Title: Pilot signal controlled HF amplifier for coaxial cable network carrying TV and audio broadcast signals - has control voltage generator, adjusting first to medium amplification on slow pilot signal failure
Inventor: MAINERT GUENTER
IPC: H03G3/00
Filed: 1991-07-25
Abstract: The HF amplifier has a pilot frequency evaluator and coupled control voltage generator, forming the control voltage by actual-rated value comparison for the HF amplifier. The control voltage is used for the HF amplifier adjustment to a medium amplification mode, on a failure of a pilot signal (9p). In such instance, the control voltage generator (18) of the HF amplifier adjust automatically first to the medium amplification, when the generator has controlled the amplifier to the approx. max. permitted amplification and the pilot signal evaluator (15), or the generator, has simultaneously determined that the pilot signal failure has taken place. ADVANTAGE - Reliable prevention of max. level excess at amplifier output.
Patent DE-4128937-A1 (DE)
Title: Optical fibre splice coupling - holds splice with outer guide sleeve and sliding centring sleeve used for inserting optical fibre end
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/38
Filed: 1991-08-30
Abstract: The splice coupling, receiving an optical fibre end (9) after removal of its outer coating, uses a mechanical  splicing device (3) with an outer guide sleeve (7) and a relatively sliding centering sleeve (6) which is attached to the coated optical fibre (21) so that the stripped fibre end (9) projects through the bore (10) in the centring sleeve (6). The splicing device is supported in a holder (2) having reception devices (5) for two plugs (4) for respective optical fibres (8). The centring sleeve is retracted from the guide sleeve for initial insertion of the optical fibre end (9), with subsequent sliding of the centring sleeve into the guide sleeve to insert the optical fibre end in the splicing device. USE - For assembly of mechanical or thermal splice connections.
Patent DE-4129000-A1 (DE)
Inventor: CHRISTENSEN BERND DR
IPC: C09D163/00
Filed: 1991-08-31
Abstract: Curable powdered coating substances based on polyaryl siloxanes, containing 1 to 99.9 % wt. or one or more polyaryl siloxanes of formula (I). The symbols R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, X, m and n have the following meanings: R<1> and R<2> are a straight or branched-chained C1-C12 alkyl radical, a substituted or unsubstituted C6-C14 aryl radical or a possibly substituted vinyl radical; R<3>, R<4>, R<5>, and R<6> are the same or different and mutually independently stand for hydrogen, a branched or unbranched C1-C3 alkyl radical or a substituted or unsubstituted C6-C14 aryl radical; X is a ( alpha ) group or oxygen or sulphur or a bond, R<7> and R<8> being mutually independently hydrogen or a branched or unbranched C1-C6 alkyl or C6-C14 aryl or a substituted or unsubstituted C3-C9 cycloalkyl radical. The degree of polymerisation n lies in the region from 2 to 100 and m is 0 or 1. The coating substances described are distinguished by high transparency and good solvent resistance and, especially with high polyaryl siloxane contents, are flame resistant.
Patent DE-4131088-A1 (DE)
Title: Gas concn. measurement in flue gas - by condensn. to obtain dry flue gas sample with withdrawal tube ending in condensn vessel which is joined by dry gas line to analyser unit
Inventor: KUHN KARL-HEINZ
IPC: G01N33/00
Filed: 1991-09-18
Abstract: Measurement of the concn. of a gas, esp. NO, SO2, or O2, in flue gas is carried out by cooling a portion of the flue gas to below the dew point, collecting the condensate and analysing the dried flue gas portion. Equipment, for carrying out the measurement on flue gas flowing in a duct, pref. includes a flue gas withdrawal tube which has an inlet opening in the duct and which is connected to an analysis unit. Withdrawal tube terminates in a condensn. vessel which is connected by a dry gas line to the analysis unit. Condensn. vessel pref. consists of an inner thermoconductor body associated with a cooling device (e.g. a Peltier element, 5) and an outer thermally insulating layer. Vessel (4) pref. has an internal corrosion protective layer. Withdrawal tube pref. terminates in the condensn. vessel at a level below the inlet of the dry gas line. Condensate is pref. periodically returned from the condensn. vessel (4) into the flue gas duct (1). ADVANTAGE - Most of the moisture and any NH3 present is sepd. from the flue gas portion, so that reliable measurements are obtd. simply, without the need for expensive heating of the line to the analysis unit or for an expensive exchangeable absorber
Patent DE-4133768-A1 (DE)
Title: Paper-making calender section has hard surface rollers - rollers swing clear for leading end of the web to pass at full speed over the soft surface rollers
Inventor: KOIVUKUNNAS PEKKA
IPC: D21G9/00
Filed: 1991-10-11
Abstract: In the calender section of a papermaking or cardboard mfg. machine, the roller gaps are formed between the rollers with a soft surface and rollers with a hard surface, where the hard surface rollers can be displaced by their mountings to one side for the leader end of the paper web (W) to pass through the section over the soft surface rollers. When the web (W) is in place, the hard surface rollers are returned to their operating position, and press the web (W) between them and the other rollers in the gaps between them. The hard rollers can pref. be withdrawn fully from the path of web (W) travel through their mountings, and the web (W) can be drawn through the calender section without touching the rollers with the soft roller surface, or at least along one of the soft surface rollers. The mountings for the hard surface rollers are fitted to swing arms to pivot on shafts across the line of the machine at the machine pedestals. A take-off roller is fitted to the mountings for the moving rollers, so that they are moved together. The movable hard surface rollers are powered and heated, and the take-off rollers are also powered. ADVANTAGE - The leading end of the web can be inserted into the calender section of the papermaking machine at full web travel speed.
Patent DE-4135152-A1 (DE)
Inventor: HEITLINGER KARL-LEO
IPC: E05B9/06
Filed: 1991-10-25
Abstract: Described is a door/window knob, designed to operate locking devices and to hold lock-cylinder inserts, with a two-part sleeve which has, round the edge of the front part, an annular groove. Inserted in the groove are decorative and/or operating elements fitted with an internal collar and designed along visually attractive or functional lines. These elements are secured, preferably with a key, so that they cannot rotate relative to the sleeve.
Patent DE-4137850-A1 (DE)
Title: Hydroxy alkenyl ester(s) - by hydrolysis of an alkene diol di:acylate using pigs liver esterase
Inventor: ISAK HEINZ DR
IPC: C07C69/145
Filed: 1991-11-16
Abstract: The prepn. of hydroxyalkenyl esters of formula (I) comprises hydrolysing an alkenedioldiacyl deriv. of formula (II) with a base in the presence of pigs liver esterase. In formulae, R1, R2, R3 and R4 are each H, alkyl or aryl; and n and m are 0-5. USE/ADVANTAGE - (I) are intermediates in the synthesis of active ingredients such as herbicides and fungicides, e.g. (I) can be oxidised to formylalkenyl esters which can be reacted with hydroxylamine to give isoxazole derivs. which can be used as precursors for juvenoids. (I) are obtd. in good yields in short reaction times and in high purity. The enzyme is cheap and gives (I) with high selectivity. (II) are readily available.
Patent DE-4138239-A1 (DE)
Title: Shock absorber device on steering column of motor vehicle - has curved track on absorber sections to produce resistance forces, for even support force on baffle element
Inventor: KOENIG ROLAND
IPC: F16F7/12
Filed: 1991-11-21
Abstract: An radial extension on the inner section (6) and/or a radial constriction on the outer section, are formed by a curved track. The track acts with either inner or outer section, dependant upon the movement distance of the yielding support (steering column 1), for a more even support force on the baffle element (steering wheel 7). The inner section is a flat body on whose narrow side the curved track runs symmetrically to the longitudinal axis (12). The outer section (3) is part of the carriage and is parallel to the adjustable direction of the yielding support inlet opening (10) of the inner section.
Patent DE-4139112-A1 (DE)
Title: Prodn. of porous silicon@ for semiconductor systems - by dipping silicon plate into electrolyte, pref. contg. hydrofluoric acid, water and ethanol, and producing pulsed current between anode and cathode
Inventor: LE BAIL LAURENT
IPC: C25D11/32
Filed: 1991-11-28
Abstract: Porous silicon is produced by: (i) dipping a silicon plate (200) into an electrolyte (150); (ii) producing an electric current between an anode (310) and a cathode (300), both arranged in the electrolyte. A pulsed current is used in step (ii). The appts. comprises a vessel (100) contg. the electrolyte (150), a holder for holding plate (200) and a means (400) for prodn. of a current, the means producing pulsed current between the anode and cathode. The electrolyte (150) contains approx. 35% HF, 35% H2O and 30% EtOH. USE/ADVANTAGE - The porous Si obtd. by anodic oxidn. favours diffusion of doping materials or impurities, e.g. B or P, in semiconductor systems.
Patent DE-4202025-A1 (DE)
Title: Fan assisted respirator with protective mask and filter connection - houses filter inserts of different filter characteristics through which breathable air supplied by electric motor driven fan is fed inside mask
Inventor: BIRENHEIDE TORSTEN
IPC: A62B18/00
Filed: 1992-01-25
Abstract: The respirator includes a filter connection (10) which has a connection identifier (11) corresp. to the filter characteristic of the filter insert (2,3). The identifier(11) is brought into contact with a filter identifier (12) assigned to the type of filter, with the fitting of the filter insert (2,3). At least one electrical contact is operated corresp to the identifiers (11,12), which adjusts the fan drive (40) and its variable output power, to the filter characteristic assigned to the fitted filter insert. In the assembled condition of the filter insert (3) or the filter adapter (2) with the filter connection (10), the electrical contacts are closed. The closure influences the driving output of the fan drive (40) or activates the detection sensor (44). ADVANTAGE - Fixing filter inserts of different filter characteristics into mask to provide breathable air driven by fan. Output power of fan is monitored automatically regarding type of filter insert used and matched to filter type accordingly.
Patent DE-4202228-A1 (DE)
Title: Bonding of difficult-to-bond surfaces of plastic components - involves heating surface of first component, treating with solvent and bringing into contact, pref. with liq. adhesive on treated surface
Inventor: HAINDL HANS DR MED
IPC: A61M39/12
Filed: 1992-01-28
Abstract: Prior to bonding a first plastic component (6) the surface of which is difficult to bond, to the surface of the first component (4) is briefly heated and then treated with a solvent (8) e.g. cyclohexane. Both components surfaces (1,4) are brought into contact with each other. In a preferred process, a liq. adhesive (9) e.g. acrylic or cyanoacrylate is coated onto the solvent treated surfaces before mutual contact. USE/ADVANTAGE - The process is used to bond the end of a tube, pref. a medical catheter to an adaptor or extension. Plastic components mfd. in materials, difficult to bond can easily bonded together in a simple process giving good bond strength.
Patent DE-4202260-A1 (DE)
Inventor: LEHR STEFFEN
IPC: G08C15/00
Filed: 1992-01-28
Abstract: For determining and setting parameters in a unit, on the one hand a plurality of parameters is to be permissible and on the other hand the number of connecting leads needed is to be reduced. According to the invention, the unit is to be operated optionally in a normal or an adjustment mode. In the normal mode internally generated and in the adjustment mode externally applied parameter signals are operative. The invention is preferably used in the optimisation of integrated circuits.
Patent DE-4203166-A1 (DE)
Title: IR spectroscopic gas analysis appts. - has internally reflective hollow spherical sample chamber
Inventor: SCHWARTING WALTER
IPC: G01N21/3504
Filed: 1992-02-05
Abstract: An IR spectroscopic (esp. trace) gas analyser has a sample chamber in which the IR light path length is increased by multiple reflection. The sample chamber (2) is in the form of an internally reflective hollow sphere which can be pressure-tightly and vacuum-tightly sealed, and into and out of which the IR light is coupled. USE/ADVANTAGE - The appts. is used e.g. for detection of silicon cpds. in hydrazine rocket file. It has an extremely simple and compact design and high gas (mixt.) detection sensitivity.
Patent DE-4213237-A1 (DE)
Title: Glass press assembly - has vertical cylinder and piston unit with cylinder fixed to die or sprung basket and pressure channels through piston
Inventor: LINDNER WALTER
IPC: C03B11/16
Filed: 1992-04-22
Abstract: The assembly to produce pressed glass objects from glass droplets or a pastille, with a vertical cylinder/piston unit to press the glass against a moulding die or sprung basket, has the cylinder (6) of the cylinder/piston unit firmly bonded to the die or sprung basket, with movement along its axis. Pressure channels (12,13) are at the fixed piston (1) to deliver pressure to the two pressure chambers (14, 17). The cylinder (6) moves between the piston (1) and the surrounding fixed guide housing (4). Two parallel pressure channels (12, 13) pass through the piston (1) to its lower end. The first channel (12) charges the first pressure chamber (14) below the piston (1) through an opening (15) at the bottom of the piston (1). The second channel (13) charges the second pressure chamber (17) between the piston (1) and the cylinder (6) through a side opening (16) at the lower section of the piston mantle surface. The piston dia. is smaller at the second chamber (17) and is smaller than the inner dia. of the cylinder (6) at least in part. The pressure surface of the first chamber (14) is larger than the surface under pressure in the second chamber (17). The pressure medium is a fluid or gas. The two pressure chambers (14, 17) are linked by at least one channel with a valve. The ratio of the pressure surfaces between the first (14) and second (17) pressure chambers is about 2:1. The pressure surface of the first chamber (14) is formed by the lower end side closure surface of the cylinder (6). USE/ADVANTAGE - The assembly is for press moulding of glass drops or pastilles, or to draw a parison from a glass pastille. The appts. is produced economically and gives a trouble-free operation with min. maintenance.
Patent DE-4215213-A1 (DE)
Inventor: GOTTSCHLICH RUDOLF DR
IPC: C07D403/06
Filed: 1992-05-09
Abstract: Novel arylacetamides of the formula I <IMAGE> in which Q, R<1>, R<2> and R<3> have the meaning indicated in Patent Claim 1 exhibit analgesic and neuroprotective properties and bind with high affinity to kappa receptors.
Patent DE-4218218-A1 (DE)
Title: Hand sewing machine - has cams to operate implements from above the cloth to form a chain-stitch
Inventor: GRAEFE TORSTEN
IPC: D05B57/02
Filed: 1992-06-03
Abstract: A process to form a chainstitch, to seam two layers of material. The needle forms loops of thread beneath the material, which is caught by another element operating from above the material. When the needle is withdrawn and advanced to the next loop, the thread is tightened and the loops are drawn together. The element to catch the loops from the needle is a pin, which enters the material at an angle, and enters the loop formed around the eye of the needle. The pin is then drawn to the vertical, and while in this position, the threaded needle descends parallel to the pin, thus entwining the loop into the material. The pin reverts to an angle as the needle is withdrawn, pulling the loop forward as it reverts to vertical. The process is repeated in stitch lengths. The appts. is also claimed. ADVANTAGE - The hand machine is employed in positions where the material is very wide, and has no attachment fixed beneath the cloth. Applicable to mending sails, or seaming an endless machine cloth.
Patent DE-4220527-A1 (DE)
Title: Suspended conveyor for underground use - uses track rails and track wheels to move gear wheels onto tooth rows of toothed rack
Inventor: BEHLAU GERHARD
IPC: B61B3/02
Filed: 1992-06-23
Abstract: The system consists of a rail-bound train with a driver carriage. This is coupled via friction wheels (19) and toothed gears (21) to both sides of a travelling rail (FS), which consists of jointed sections. The rail has some upper toothed racks (31). An integral web (30) on the rail supports the wedge-shaped racks and track rails (33) above the racks. The track rail acts with track wheels (22), which rotate about the same axis (20) as friction wheels and gears. A pair of teeth is located in the vertical transverse plane of the leading and trailing sections (32) of the racks, so as to be movable crosswise. This pair of teeth is supported against an elastic return force. USE/ADVANTAGE - Suspended underground conveyor with reduced construction and maintenance expenditure, combined with low-wear and easier transition from friction to rack drive at transition of horizontal to inclined track sections.
Patent DE-4222873-A1 (DE)
Title: Dirty bottom surface cleaner with front dirt reception aperture - has dirt collector with top open guide fin extension for admission of collected dirt
Inventor: WESSELS BERNHARD
IPC: B08B15/02
Filed: 1992-07-11
Abstract: The front side dirt reception aperture (4) is operable by a servicing person, while a dirt collector (1) is fitted with a spray head (11) for water, steam etc. application and is connectable to a suction mechanism. The dirt collector has a top open guide fin extension (15) for admission of the dirt to be collected. Pref. the guide fin extension connects to both long side boundaries (2, 3) of the dirt collector, and has inclined side boundaries, w.r.t. the longitudinal centre axis in the outwards direction. USE/ADVANTAGE - For sludge cleaning of flat bottom tanks, or tanker ships, with simple design and no need for extensive, reciprocal motions.
Patent DE-4225774-A1 (DE)
Title: Oil fired heating boiler for household use - has exhaust reverse flow guide inside high temperature combustion chamber and working with injector, chamber being in form of pot with constantly hot base
Inventor: PANAROTTO OLIVER
IPC: F24H1/26
Filed: 1992-08-04
Abstract: The boiler (11) has a burner (12) and a high temperature combustion chamber (18) into which the flame (21) is directed. The reverse flow guide for the exhaust works with an injector device. The combustion chamber is in the form of a pot whose base (20) is at a constant high temperature. The exhaust (40) flows back towards the burner on a flow path which surrounds the flame inside the chamber (18). A ring channel (32) for the exhaust leads to the base of the flame, and has an outlet (22) out of the chamber near its periphery. A tubular nozzle (28) near the base of the flame surrounds it and is flanged (31) in a bell mouth against the channel side (32). ADVANTAGE - Has increased efficiency and reduced emission of harmful substances.
Patent DE-4238151-A1 (DE)
Title: Measuring temp. of railway vehicles and components - involves measuring infrared radiation of moving vehicle and comparing profile with known signal patterns
Inventor: WETZLER GERD R DIPL ING
IPC: G01J5/06
Filed: 1992-11-12
Abstract: The temp. measuring method involves measuring the infrared radiation from the vehicle or component during the passage of the vehicle over track measurement equipment contg. infrared sensors.  Infrared noise sources and their reflections are filtered out. The accurate wheel position and wheel dia. are determined each time and the infrared profile detected by the IR sensors in the infrared measurement system is compared with known infrared signal patterns of the vehicle or vehicle component. USE/ADVANTAGE - Determining wheel dia. and position. Overcomes disadvantages of conventional methods, including effects of extraneous thermal sources.
Patent DE-4238439-A1 (DE)
Title: Screen printing doctor blade holder - has difference angle between holder axis and rubber axis and has varying jaw lengths with anti-adhesive coating on jaw extension
Inventor: GENCALIOGLU OSMAN N
IPC: B41F15/44
Filed: 1992-11-13
Abstract: A difference angle appertains between the doctor holder axis and the doctor rubber axis and the jaws have varying lengths. The extended jaw has an anti-adhesion coating in the extended part and reduces the sag of the doctor rubber. In this case, the effective printing angle is the holding angle plus the difference angle less the sag angle. For a full colour throughput the left side of the doctor holder is turned, whereby the extended jaw is no longer functional. In this case, the effective printing angle is the holding angle less the difference angle less the fuller sag angle. ADVANTAGE - Can produce a thin or thick layer of colour.
Patent DE-4300302-A1 (DE)
IPC: B65D1/38
Filed: 1993-01-08
Abstract: The invention relates to a bottle crate having lateral openings. It consists in the fact that at least one lateral opening is of such a size that a bottle (5) standing in the bottle crate can be removed through this opening (12). <IMAGE>