baber/WOPTO huggingface dataset:
Patent DE-2623277-A1 (DE)
Title: Recovery of heavy metals and water from effluent - by use of ion exchange for sepn. of heavy metal ions and subsequent extraction for recovery by electrolysis
Inventor: HASHIMOTO YASUHIKO
IPC: C25D21/22
Filed: 1976-05-24
Abstract: In a process for the recovery of heavy metals by use of an ion exchange column contg. ion exchange resin and an electrolytic bath, waste water contg. heavy metal and other ions is passed through the ion exchange column for adsorption of the heavey metal ions and sepn. of the other ions and the electrolyte is passed through the resin exhausted by heavy metal ions and continuously passed into the electrolytic bath for electrolytic sepn. of the heavy metal ions. The process can also be adapted for the recovery of heavy metal and industrially pure water from waste water in a closed system contg. a metal surface treatment plant, >=1 ion exchange columns, an electrolytic bath, and demineralising equipment, such that the latter receives water from the ion exchange column during the removal of the heavy metal ions for purification and further removal of other ions, the water being returned to the treatment process. The process can be used for recovery of heavy metals from water used in refining, surface treatment etc., Other methods are less effective when ion concn. is high and may cause anode corrosion, necessitating use of e.g. Pt. anode, not required with this process.
Patent DE-2623345-A1 (DE)
Title: Electronically operated thyristor switch circuit - has two antiparallel thyristors coupled by gates via two decoupling diodes to triggering thyristor
Inventor: WEBER GUENTHER DIPL ING
IPC: H03K17/725
Filed: 1976-05-25
Abstract: The thyristor switch consists of two antiparallel thyristors connected by their gates over two coupling diodes to the output of a triggering thyristor. The triggering thyristor is turned on by an electronic operating circuit. The voltage applied to the antiparallel thyristos by the triggering thyristors is determined by a zener diode in series with the coupling diodes. The switch provides greater decoupling between load and control circuits. The power loss in the 'on' condition is also reduced and the low voltage drop means smaller voltage sources can be used.
Patent DE-2627589-A1 (DE)
Title: Portable battery operated earthworm trap for anglers - uses probes carrying alternating voltage which are inserted about one metre apart in ground
Inventor: THUERER HARRI
IPC: A01M29/24
Filed: 1976-06-19
Abstract: The battery operated earthworn trap is for use by anglers, and consists of two rod shaped electrodes carrying about 220 volts AC, which are inserted in the ground about 1 metre apart. The electrodes are insulated so that no unsafe conducting metal is exposed above the ground, and the device may be operated from a car battery, or a separate wet or dry battery. A metal chassis or box (1) with suitable handgrip (2) contains a transistor circuit, rectifier and transformer, which excite two electrodes (10) on the end of a plugged (9) cable, with about 220 V. The electrodes have bellows type insulators (13) and handgrips (11) which allow them to be inserted in the ground about 1 m apart, without dangerously exposed conducting parts. A mains cable may be plugged into the device instead of the electrode cable, and the battery charged as required.
Patent DE-2632416-A1 (DE)
Title: Poly-(para)-phenylene terephthalamide (co)polymers prodn. - by reacting (para)-phenylene diamine and terephthalic acid dichloroanhydride in soln. with a tert. amine
Inventor: SOKOLOV LEV BORISOVITSCH
IPC: C08G69/32
Filed: 1976-07-19
Abstract: Poly-p-phenylene terephthalamide (co) polymers are made by (1) dissolving p-phenylenediamine (I) or a mixt. or (I) and a diphenyl diamine in a solvent consisting of (a) linear or a mixt. of (I) and a diphenyl diamine in a solvent consisting of (a) linear or cyclic N-alkyl substd. acid amides abd (b) alkali (ne earth) metal salts which are soluble in the amide, and used at 1-3 moles per mole dissolved diamine; (2) Introducing into the soln. at 0-20 degrees C an equimolar amt. (on diamines) of terephthalic acid dichloroanhydride (II) or a mixt. of (I I) and a diphenyl series dichloroanhydride; (3) introducing 2-6 moles (per mole diamine) or a tert. amine (III); (4) stirring the reaction mixt. for 3-70 mins; and (5) recovering the desired prod. from the reaction mixt. Suitable tert. amines (III) are alpha-picoline, beta-picoline, dimethylbenzlamine, dimethylaniline, quinoline, pyridine, triethylamine or N-methylmorpholine. The presence of the tert. amine increases the rate of polycondensation of the reactants and allows the prod. of higher mol. wt. prods. The higher rate of polymerisation also reduces the purity requirements of the solvent compared with prior art processes, and it is possible to obtain high mol. wt. polymers using solvents contg. 0.07 % moisture. The poly-p-phenyleneterephthalamide (co)polymers are polyamides having high thermal stability, mechanical strength and solvent resistance. They are useful e.g. in the prodn. of fibres used for making tyre cords and as a reinforcement for plastics materials.
Patent DE-2633853-A1 (DE)
Title: Machine for loading and off-loading pallets - has grab head between pallet and piece goods conveyors mounted on four link gearing
Inventor: HAHN WINFRIED
IPC: B65G57/24
Filed: 1976-07-28
Abstract: Equipment for loading piece goods such as boxes on and off loading from pallets includes a conveyor for delivering and taking away the pallets and a pallet store. Between the piece goods conveyor and the pallet conveyor is located a grab head which is moving along a hook shaped curved track. One end point (13) of the curved track is positioned above the piece goods conveyor (1) and its other end point (14) which is vertically displaced against the first point (13) is positioned above a pallet lift (3') so that a top layer (2') of a pallet can be lifted or set down. The grab head (4) is positioned on an extended tie (6) of a four link gearing (7) and the bearing points (9, 10) of the support steering arms are below a movement track traced by the end points (13, 14) on axis (15) of the extended tie (6). The crank radius of the support steering arm (11) is smaller than the crank radius of the driving arm (12) which swings backwards and forwards below the curved track.
Patent DE-2633927-A1 (DE)
Title: Path attenuation compensator for telephone networks - uses transmitted direct current to alter gain of line amplifier
Inventor: OKUHARA SHINZI
IPC: H04B3/04
Filed: 1976-07-28
Abstract: The connection path attenuation compensator, for telephone networks, reduces line attenuation by connecting the line to a gain-controlled bidirectional amplifier (14) whose gain depends on a DC current transmitted via the line circuit and selectors (12) to the terminal unit and back. The DC current causes the amplifier's gain to alter such that changes in connection path attenuation are automatically compensated and the quality of the connection is maintained. The DC current and the voice signals are isolated from one another by using decoupling inductors and capacitors.
Patent DE-2637036-A1 (DE)
Title: Surgical instrument for treating varicose veins in lower limbs - in form of needle scissors with outer and inner edges for cutting skin and vein
Inventor: TORRE DULFFO JOSE E DE LA DR
IPC: A61B17/32
Filed: 1976-08-17
Abstract: Surgical instrument for releasing, tearing out and destroying varicose veins int he lower limbs comprises needle scissors of which the cutting portions (3) have an outer edge (7) for cutting this skin and an inner edge (6) for cutting the varicose vein. The cutting portions form a rhombus ending in a ground point (4). The width of the cutting portions is pref. 1-3 mm., and their height is not more than 3 mm., in accordance with a given ratio. The instrument operates with a linear skin incision of approx. 5 mm. which is not stitched and which facilitates exit of blood accumulated in the zone of operation, thus reducing formation of haematomas to an acceptable level.
Patent DE-2644065-A1 (DE)
Title: Bed for child in intensive care unit - has common subframe for side grid and patient support surfaces of different size
Inventor: ROCHUS-KAEMMERER GEB KAEMMERER
IPC: A47C21/08
Filed: 1976-09-30
Abstract: Bed for child in intensive care unit comprises side grids and patient support surfaces of different size which can be mounted selectively on a common subframe (12). Pref. the support surfaces are mounted on two lifting columns (14, 16) which are mounted with longitudinal spacing on the subframe, and the side grids are fixed to the subframe. A head and/or foot rest or a back rest can be mounted pivotably on the main pat of the support surface, for pivoting out of a position resting on the main part or the back rest as far as a stop to extend the support surface. The lifting columns can pref. be actuated separately. The bed can be mfd. in larger batches, and adapted by simple means to the body size of the patient within the given size range.
Patent DE-2645764-A1 (DE)
Title: Detachable buoyant power unit for e.g. air mattress - has small hull with sealed-in batteries and control by tiller allowing push or pull propulsion
Inventor: HOELZL HORST ING GRAD
IPC: A63B35/00
Filed: 1976-10-09
Abstract: The detachable buoyant power unit for bathing boats or air mattresses comprises a two part hollow body made of plastic, with a horizontal join near the middle. The inverted - U shaped lower part centrally supports a sealed electric motor (3) driving a propeller (17), substantially horizontally and submerged. In the sides it accommodates two sealed-for-life batteries. The top part, bolted and sealed to the lower to ensure buoyancy, has a central upright fin (7). A fork at the top of this carries a pivoted tiller (9), allowing pusher or puller operation. The tiller handgrip (10) embodies a start/stop buttom (11). A coupling bracket (12) projects from the nose of the unit.
Patent DE-2650301-A1 (DE)
Title: Hydraulic or pneumatic screw cap securing device - has link integral with mounting ring fitting by groove over flange
Inventor: LEVERBERG SIEGFRIED
IPC: F16L19/00
Filed: 1976-11-02
Abstract: The screw securing device has a protective screw cap for screw- or quick-action-type hydraulic or pneumatic system couplings, and with a holder fixed to its top having a mounting ring at the other end. The holder is a link integral with the ring (2), while the coupling itself (5) has a flange (4) to secure the ring in the axial direction. This engages in a mating groove (6) formed in the ring. The flange can be chamfered on its face nearest to the cap, in which there can be a cylindrical recess (10) below the tapped portion (12) to accommodate the ring, of internal dia. slightly less than the external dia. of the ring.
Patent DE-2655314-A1 (DE)
Title: Waste compressor for paper and plastics - comprises feed=in funnel, rotating worm screw and roller mounted over container
Inventor: WALTER SEPP
IPC: B30B9/30
Filed: 1976-12-07
Abstract: The waste press consists of a rotating part (3) which is mounted at the bottom of a funnel. The worm is mounted over a waste container (2). The whole is built into a frame (4) that is held together by three bolts (5) which act as feet for the compressor. The rotating part consists of a worm screw (16, 17) which is driven by a motor (15). The dia. of the screw is slightly smaller than the inside dia. of the waste container. A conical roller (20) is mounted at the bottom of the worm screw. The surface of the roller rolls over the top of the compressed waste.
Patent DE-2704192-A1 (DE)
Title: Fumaryl di:chloride prepn. - by heating maleic anhydride with aromatic tri:chloro-methyl cpds. using Lewis acid catalysts
Inventor: BLUMENFELD GEORG DIPL CHEM DR
IPC: C07C51/60
Filed: 1977-02-02
Abstract: Fumaryl cichloride, (I), is prepd. by reacting maleic anhydride with aromatic trichloromethyl cpds. (II), at 120-180 degrees C in the presence of catalysts and opt. of inert organic solvents. (II) may be benzotrichlorides and their substd. prods., esp. 1,3- or 1,4-bis-(trichloromethyl)-benzene. The catalysts are esp. Lewis acids, partic. FeCl3. Catalyst concn. may be 0.15-1% w.r.t. maelic anhydride. The solvents may be chlorinated aromatic or aliphatic cpds. (I) is a raw material for polymer prepn. (I) can be obtd. in high yields, e.g. 90% and 98% purity. Reaction prod. consists of (I) and aromatic carboxylic acid chlorides, without HCl. No HCl-absorption device is needed. (II) are easily available by direct chlorination of xylene and toluene. (I) and isophtyaloyl dichloride were pred. by the FeCl3-catalysed reaction of maleic anhydride and 1,3-bis-(trichloromethyl)-benzene.
Patent DE-2711816-A1 (DE)
Title: Temp. control for inside of bus - has electronic sensors for separately controlled outlets receiving air via. duct from pressure region in front of vehicle
Inventor: HOLZER WALTER
IPC: B60H1/00
Filed: 1977-03-18
Abstract: The inside of the bus has separate outlets above each pair of seats, with air being supplied by a supply duct from the pressure region at the front of the vehicle. The outputs from the jets is monitored by electronic sensors so that differences in pressure along the vehicle are catered for. The system can also cope with temperature differences due to the sun shining onto one side of the vehicle. The airflow is maintained at the set levels, independent to vehicle speed, by variable speed impellers.
Patent DE-2713808-A1 (DE)
Title: Fork-lift truck lifting equipment - has rams between outermost flanges of H=section stationary columns
Inventor: ABELS THEODOR ING GRAD
IPC: B66F9/08
Filed: 1977-03-29
Abstract: The forklift truck lifting equipment comprises a stationary mast section fixed to the truck and one or more extending sections, each section consisting of two columns, and the extending one fitting between those of the stationary one. The lifting slide works on the extending section, being suspended from a chain reeved over a roller. A hydraulic ram is coupled between stationary and extending sections, and the columns are each of H-section, the webs being perpendicular to the planes in which the columns lie. Each ram (6) is mounted between the outermost flanges (4, 5) of the stationary mast section (2).
Patent DE-2727564-A1 (DE)
Title: Alkali 2-hydroxyalkyl sulphonate prodn. - with low glycol content, from alkylene oxide and alkali bi:sulphite, then spray drying
Inventor: DISTLER HARRY DR
IPC: C07C309/08
Filed: 1977-06-18
Abstract: Prodn. of mixts. of hydroxyalkyl sulphonates HO.CRH.SO3Z (I) (R are each H or aliphatic gp.; Z is alkali) and glycols HO.CRH.CRH.OH (II) contg. 0.6 wt.% (II) on (I) comprises first reacting the corresp. alkylene oxide (III) with ZHSO3 in the presence of solvents. The liq. reaction mixt. at 30-100 degrees C is then atomised under a pressure of 100-150 bar to droplets of mean dia. 1-100 mu m, and the droplets heated in air/or inert gas at 150-390 degrees C/0.05-2 bar. (I) are starting materials for textile auxiliaries and cleaners, e.g. domestic washing powders, liq. cleaners and soaps. Yields space-time yields and purity are improved, esp. the content of (II), which causes skin irritations and gives a hygroscopic prod., is lower than that in other processes.
Patent DE-2728706-A1 (DE)
Inventor: GLEISBERG DIETRICH DIPL CHEM D
IPC: G01N33/18
Filed: 1977-06-25
Abstract: In order to carry out phosphate determination in waste water in such a way that trouble-free, automatic dosing with precipitant is effected as a function of the phosphate concentration of the waste water, the molybdate-vanadate reagent solution is admixed with chloride ions. This prevents the formation of crystallites in the equipment parts through which the reagent solution flows, and the reproducible determination of phosphate becomes possible.
Patent DE-2729536-A1 (DE)
Title: Ring shaped toy with roller inside - has roller consisting of two sections connected by spindle
Inventor: KOLLER HEINRICH
IPC: A63B67/08
Filed: 1977-06-30
Abstract: The toy has a ring shaped body with a handle and with a roller which is inserted into the ring and which rolls around the inside of the ring. The roller is made of a cross section corresponding to that of the ring shaped body and is shaped and used as a rotation body. The handle is formed on the ring shaped body as an attachment with an opening. The roller consists of two equal sections connected by an axle with the distance of the two sections from each other corresponding to the thickness of the ring shaped body.
Patent DE-2739082-A1 (DE)
Title: Rubber tyre contg. light-metal reinforcement cords - made of aluminium alloy contg. minor portions of magnesium, manganese, chromium, zinc and silicon
IPC: D07B1/00
Filed: 1977-08-30
Abstract: The parent patent claims a rubber tyre reinforced with light-metal cords. In this addn. a major portion of the wires of which the reinforcing cords are composed are of light metal. Pref. their cross-section is dimensioned so that their resistance to static and dynamic permanent stresses corresponds to that of steel wires intended for similar use. Tensile strength of individual wires is pref. 30-50, (esp. 40)kP. The specific wt. of the light metal employed is pref. 2.72 g/cm3. An Al-alloy contg. 3-6, pref. 4-5.5 wt.% Mg, and 1 wt.% of each of Mn, Cr, Zn and Si, is suitable.
Patent DE-2742669-A1 (DE)
Title: Lorry for transporting containers - has fork shaped rear chassis with hydraulic ram operated swivelling arms to hold containers
Inventor: TOIFELHART GUENTER
IPC: B60G11/26
Filed: 1977-09-22
Abstract: A lorry for transporting containers has a chassis forked behind the cab and going around the container and lifting equipment which can be coupled to the container. Cylinders (7) at the rear do the lifting and also form part of the suspension of the lorry. The chassis members (1) are fixed firmly to the cab and each has a swivelling arm (5) supported by a rear wheel (6). The working cylinders are placed between these arms and the wheels and the travel of the work cylinders (7) is greater than the clearance between the underside of the container and the ground.
Patent DE-2743210-A1 (DE)
Title: Luminous display panel or model - has patterns on transparent elements, movable or stationary, periodically illuminated through their edges
Inventor: VARGA ROBERT S
IPC: G09F13/36
Filed: 1977-09-26
Abstract: The device is intended for demonstration, teaching, exhibition, propaganda or advertising purposes. It comprises at least one transparent element, light sources, and at least one picture or signal system illustrating the displayed subject. The transparent element(s) (3) made of glass or other transparent material are stationary or movable with respect to each other. A picture or signal pattern (4) is provided in each of them, and is periodically illuminated by lamps (2) at their edges.
Patent DE-2746643-A1 (DE)
Title: Installation raising steam from geothermal heat - has concentric inlet and steam outlet pipes with water boiled in preformed fissure
IPC: F24J3/08
Filed: 1977-10-17
Abstract: A large diameter hole is drilled into the earth to a depth at which there is solid rock at a high temperature. Water is forced down the hole at high pressure to crack the rock and produce a large fissure in it. A small diameter tube is then inserted centrally in the hole and water is pumped through it. It enters the fissure and is evaporated. The steam produced rises through the annular space between the central tube and the outer bore.
Patent DE-2748302-A1 (DE)
Title: Sealed thermal expansion joint between pipes - comprises flat belt clamped along edges by threaded studs between V=shaped components
Inventor: SKATES RAYMOND ELLIS
IPC: F23J13/04
Filed: 1977-10-25
Abstract: The expansion joint forms a sealed connection between the adjacent ends of first and second conduits. Two oblongs strips (3) are secured to the pipe ends and have V-shaped outer surfaces, against which the V-shaped inner surfaces of clamping members (5) are pressed by securing devices (9). A flexible seal (7) fits over the pipe ends and is clamped between members and strips. It is in the form of a flat belt whose edges are distorted where they are clamped.
Patent DE-2750650-A1 (DE)
Title: Hard-copy print=out system - uses temporary storage to produce line by line hard copies of video screen display
Inventor: TROELLER GERALD DR ING
IPC: H04N5/84
Filed: 1977-11-10
Abstract: The print-out system produces a hard copy of a screen's displays. The picture signal, the picture-point clock signal and the sync. signal are derived from the transmission signal used to generate the stationary picture. The picture data is digitised and divided up in time. The digisied data is stored temporarily and can be read out continuously for hard copy printing line by line. The digitised data is written in and read out in words n bits in length, where n = 2x and x is 3 or 4.
Patent DE-2753434-A1 (DE)
Title: Ballast filler for tractor tyre - has hopper fed screw extending into tyre through removable plug in wheel rim
Inventor: ECKER SEN LUDWIG
IPC: B60C29/06
Filed: 1977-11-30
Abstract: The ballast filler for the tractor tyre has a tube with integral screw drive (3) to move the ballast from a hopper (22) to the filling end (8). The filler is fitted through a removable plug in the wheel rim and extends well into the tyre. The filler can be used to fill tubeless tractor tyres, with the screw impeller driven by an electric servo motor (1) at the end of the filler. The ballast is thus packed tightly and evenly.
Patent DE-2757597-A1 (DE)
Title: Conveyor belting woven insert - has warps of texturised and non-texturised high tenacity filament yarns to improve bond with cladding mass
Inventor: MEWES HERBERT DIPL CHEM DR
IPC: D03D1/00
Filed: 1977-12-23
Abstract: In the mfr. of a woven fabric as an insert into conveyor belts, and drive belts, the material is composed of texturised high tenacity filament yarns or twisted and untexturised high tenacity filament yarns, or twisted yarns. Polyester is the pref. material for the high tenacity filament yarns to give the texturised and untexturised components of the mixts. of twisted filaments forming the yarns.
Patent DE-2758128-A1 (DE)
Title: Shock absorber for hydrostatic drives - has floating piston cylinder with flow control valves at both ends
Inventor: BENZ ANDREAS
IPC: F16H61/40
Filed: 1977-12-24
Abstract: The shock absorber for hydrostatic drives has relatively simple design and ensures soft damping. A cylinder with a piston has end connectors with restrictor valves. Liq. entry is free but the outlet is restricted. The connections at the cylinder ends can be arranged to be axial or at right angles to the cylinder axis. The restrictor valves can be adjusted and the floating piston travel can be limited.
Patent DE-2802159-A1 (DE)
Title: Hexa:hydro-benz-(g)-isoquinoline derivs. - useful as antidepressants, analgesics, anti:aggressive(s) and thrombocyte-aggregation inhibitors
Inventor: BASTIAN JEAN-MICHEL DR
IPC: C07D211/78
Filed: 1978-01-19
Abstract: Isoquinoline derivs. of formula (I) and their salts are new. In (I) R1 is H, F, Cl, Br or 1-4C alkyl or alkoxy; R2 is H, 1-6C alkyl, 3-6Calckenyl or alkynyl (the multiple bond is not adjacent the ring N), 2-5C hydroxyalkyl (the OH >=2C away from the N), 3-5Calkylcarbonyl-alkyl, 7-10C phenylalkyl (opt. ring substd. by gps. R1); R3 is H, 1-4C alkyl, thienyl or phenyl) (opt. substd. by one or two F, Cl, Br, or 1-4C alkyl, alkoxy or alkylthio. (I) are made e.g. by dehydrating the corresp. 5-hydroxy cpds.. (I) are esp. useful as antidepressants but also have analgesic activity. Those with R3 = H or alkyl are anti-aggression agents and those with R3 = thienyl or opt. substd. phenyl are thrombocyte-aggregation inhibitors.