baber/WOPTO huggingface dataset:
Patent DE-2239304-A1 (DE)
Title: Electron beam welded joints - between manganese steel and transformation hardenable steel with dual heating of transition hardenable steel
Inventor: HILLER WALTHER DIPL ING
IPC: B23K9/23
Filed: 1972-08-10
Abstract: Mn steel and components made from transformation hardenable steel the Mn steel being subjected to one single and the other to two heatings in the joint zone when the joint is made. This is pref. done by insertion of an austenitic steel which is first welded to the transformation hardenable steel and then to the manganese steel the heat generated by the second welding operation tempering the first weld seam zone. The methods avoids local excess hardening and consequent cracking.
Patent DE-2239946-A1 (DE)
Title: Xylene isomer sepn from a complex - by heating with hydrocarbon vapour avoiding corrosion problems caused by steam heating
Inventor: KAI IWAO
IPC: C07C15/08
Filed: 1972-08-14
Abstract: A single xylene isomer is sepd. from a mixt. of 8C-aromatic hydrocarbons by heating a complex cpd. of HF-boron fluoride-aromatic hydrocarbon by passing over hydrocarbon vapour obtd. by distn. of a hydrocarbon mixt. A part of the aromatic hydrocarbon is isomerised to other isomers or the complex cpd. is decomposed into its components. The hydrocarbon vapour is normally obtd. from the 8C-aromatic hydrocarbon mixt.
Patent DE-2315013-A1 (DE)
Title: Lounge jacket mfr. using lapel template - and elimination of folds in wrapped-over front part
Inventor: TUTIDA MASAITI
IPC: A41D1/02
Filed: 1973-03-26
Abstract: Piece is cut from a pref. woven or knitted fabric laid double, of sufficient size to form the lapel. The template has a side edge corresponding to the outer joint line of the lapel and the curved bend line. The folds formed by folding over are removed, to form the provided front part. The outer collar is sewn to the lapel, which is then sewn conventionally to the body of the jacket. The bulky, unstable seam usually formed between the lapel and the front part is avoided.
Patent DE-2318652-A1 (DE)
Title: Common destruction of metal hardening waste - by reacting cyanides and cyanates with nitrates and nitrites
Inventor: DITTRICH GUNTHER DR
IPC: C23C8/40
Filed: 1973-04-13
Abstract: Pollution by waste from melts used in hardening, carburising and nitriding steel, and from heat-treatment melts contg. alkali nitrite/nitrate, is prevented by common destruction of (1) cyanides, cyanates and complex cyanides (I)and of (2) nitrates and nitrites (II). Powdery mixts contg (I) and (II) are reacted with one another, in molten or sinter sintered conditions, using a wt. ratio (II):(I)>2.1(>4), and reducing excess (II) by reaction with C or C-contg. substances in molten phase. Mixts of powdered salts are heated at least to formation of melt, partic. when C is added after reaction of (I) and (II), or powdered salts contg. (I) or (II) may be introduced into stirred melt of the other cpd gp. Reduction with C may be effected also during reaction of salt mixts. esp. at 50 degrees C above their melting temp.
Patent DE-2328156-A1 (DE)
Title: 3-Hydroxy-2-naphthoic acid prepn - from sodium beta-naphtholate and carbon dioxide, in the presence of aryl-aliphatic cpds and/or aromatic ethers
Inventor: QUADBECK-SEEGER HANS-JUERGEN D
IPC: C07C51/15
Filed: 1973-06-02
Abstract: Sodium naphthalate is heated in a first stage to at least 180 degrees C in the presence of aryl-aliphatic cpds. contg. at least two aromatic radicals linked by a cycloaliphatic and/or aliphatic radical, and/or aromatic ethers contg. at least one aromatic ring carrying at least one alkoxy, clcyo-alkoxy and/or aralkoxy gp, the resulting mixture being reacted with CO2 at the same temp. in a second stage, and resulting disodium salt of 3-hydroxy-2-naphthoic acid being converted into the free acid by addition of an acid.
Patent DE-2333609-A1 (DE)
Title: Tape recorder with two tape spool rims - is fitted with two oppositely rotating tape driving shafts
Inventor: PLENER HELMUT
IPC: G11B15/44
Filed: 1973-07-02
Abstract: The monitor has two scanners supplying pulses whose train corresponds to the rotational speed of the tape spool rims. A changeover switch raises the tape pressure roller from the tape and engages the other roller with the tape. It switches off the drive for the hitherto winding-on tape spool rim and switches on the drive for the other spool rim. The scanner assigned to the hitherto winding-on rim is disconnected from the changeover switch and the scanner assigned to the other rim is started up or its pulses switched to the monitor, when the speed of the winding-on rim falls below a certain value.
Patent DE-2337739-A1 (DE)
Title: Stabilising proteins, esp., enzymes by crosslinking - by two-or multi-step reaction with di- or multifunctional reactants
Inventor: SIEBENEICK HANS-ULRICH DR
IPC: C12N11/02
Filed: 1973-07-25
Abstract: Proteins, esp. enzymes, are stabilised in their native, active form by covalent crosslinking by a two-step or multi step reaction with a di- or polyfunctional (homo- or hetero-functional) reactant(s). Ribonuclease, trypsin and other enzymes for use in medicine, food industry, chemical industry effluents purification, etc. can be so stabilised. The tertiary or quaternary structure of the proteins is fixed by covalent crosslinking.
Patent DE-2337761-A1 (DE)
Title: Extender for flash cube fitting - has fixed housing, rotating cube support and single flash release lever
Inventor: WINKLER ALFRED
IPC: G03B15/04
Filed: 1973-07-25
Abstract: The extender has a fixed housing which fits into slots on the camera, by means of tags. A rotating column inside the housing joins the rotating fitting to the flash cube mounting at the top. The flash bulbs are fired by a single lever between the camera release and the flash cube. A safety lever is joined to the release lever so that the bulb can only be fired when the cube is in the correct setting. The extender has only one release lever mechanism and thus has a simple layout. The release lever is spring loaded with a weak spring to hold it in the off position. The extender is compact and easily carried in the user's pocket.
Patent DE-2338516-A1 (DE)
Title: Antibacterial 1,3-oxazolidines - substd. in positions 3 or 5 by long-chained alkyl gps
Inventor: KOPPENSTEINER GUENTER DR
IPC: C07D263/04
Filed: 1973-07-30
Abstract: Substd. 1, 3-oxazolidines used as active bacteriostatic or bactericidal agents are substd. by long-chained alkyl gps. in positions 3 or 5 and have general formula: R3-CH-CH2-NR2-CHR1-O (I) (where R1 is H, opt. halogen- substd. alkyl, or halogen-, OH- or MeO-substd. Ph; R2 is H, alkyl opt. substd. by OH or amino or interrupted by an imino gp.; R3 is H or alkyl, provided one of R2 or R3 is 8-18C alkyl). The cpds. are used in aq. or organic solns. suspensions or emulsions for dry-cleaning, disinfecting a and preserving textiles, floors, hospital equipment and instruments; industrial concentrations, e.g. dairies, breweries and laundries; preserving products, e.g. cosmetics, starch sizes, glues, dispersed dyes, cutting and drilling oils, against bacterial attack and decomposition; preparations for body hygiene, e.g. soaps, shampoos; deodorants and cosmetics. (I) resist prolonged heating and are stable at pH 7-10.
Patent DE-2341138-A1 (DE)
Title: Yarn winding system for extruded yarns - has dual drive to divided friction roller to allow reverse bobbin drive rotation
Inventor: ISHIHARA SATOSHI
IPC: B65H54/46
Filed: 1973-08-14
Abstract: The system to wind extruded synthetic yarns, using a friction contact roller to develop the wound creel, uses two winding bobbins with a centrally-located drive roller which can be rotated in either direction. the system ensures a smooth change-over from a fully-wound bobbin to the fresh bobbin, without any loss of yarn.
Patent DE-2342803-A1 (DE)
Title: Illuminated chart table for ship's bridges - has projector directing light beam onto ground glass screen via reflector mirrors
Inventor: KUEHNE KARL-MICHAEL
IPC: A47B97/02
Filed: 1973-08-24
Abstract: The chart table comprises a projector and a ground glass screen which serves as a base for the sea chart which is located with its edges inserted in guides. The projector is associated with a control device which can be actuated by controls set near the screen and displaceable diaphragms are disposed in the beam path of the projector and are used to adjust the size and format of the light field appearing on the screen. This field can be rotated and displaced in any direction so that only the relevant part of the chart need be illuminated. A colour filter can also be disposed in the projection path so that the most favourable colour can be used for night navigation. The light is projected onto the screen via reflecting mirrors.
Patent DE-2349730-A1 (DE)
Title: Rubbing-board for plasterers and bricklayers - has plastic handle-support firmly joined to wooden board
Inventor: LECHNER JOSEF
IPC: E04F21/06
Filed: 1973-10-03
Abstract: The rubbing-board consists of a wooden rubbing-plate and a handle made of closed-cell hard plastic foam, which is joined to the wooden plate to form one piece, by foaming the handle-supports to the wooden surface of the plate. The device combines the advantages of plastic foam, e.g., polyurethane, with the occasional advantages of wooden boards. It is economical in prodn., easy to handle and very durable.
Patent DE-2358637-A1 (DE)
Title: Composite metal and plastic profile - made by foaming between two metal elements in a mould
Inventor: BISCHLIPP KLAUS
IPC: E06B3/267
Filed: 1973-11-24
Abstract: Two separate metal profiles are bonded together into a heat-insulating composite profile (e.g., for window/door frames) by using two mould tools with a circular section cavity which is filled with thermosetting insulation, the gap between profiles being pre-set by stops; the stops are adjustable and the mould tools with cover strips are sepd. by those stops. The method is improved by using >=2 mould halves which hinge together about an axis parallel to the longitudinal axis of the composite and embrace the cavity which accepts the metal profiles; the hinge axis is parallel to, at a distance from, and above the plane of mould closure. The arrangement saves space and simplifies the process.
Patent DE-2359557-A1 (DE)
Title: Ink storage compsn. for markers - which comprises chrysotile asbestos fibres and ink solution
Inventor: HUBBARD JAMES ROBERT
IPC: C09D11/16
Filed: 1973-11-29
Abstract: An ink-storage compsn. comprises a uniform dispersion of liquid-solid mixture of chrysotile asbestos fibres type 5-7 and an ink formed from a polar solvent and a soluble dye. The compsn. is used in marking instruments with fibrous capillary tips and of any shape or configuration. The compsn. is leak proof and can hold a large volume of ink.
Patent DE-2361527-A1 (DE)
Title: Security system for strong rooms - has electric door lock with time lag element
Inventor: JANK WILHELM
IPC: E05G5/00
Filed: 1973-12-11
Abstract: The electric door security contains a time lag element, which releases the door, a predetermined time after the opening order. The door may be opened by a key from outside, but from inside only electrically via the door security. The security has an associated fire sensor and/or mains failure sensor, and the door is released immediately, when these react. One additional sensor determines the open position of the door, and is connected to a time switch. It produces a signal, when the door is kept open for a certain period, and transmits an emergency call, when the door is not closed, after the signal has been issued.
Patent DE-2400736-A1 (DE)
Title: Prefabricated door-frame - with left hand or right-hand door closure, has sealing piece in fold of door covering hinge-plate holes
IPC: E05D11/00
Filed: 1974-01-08
Abstract: The wooden door frame has a lining strip and a strip covering the door fold, with a groove on the door abutment side of the fold. Into the groove is pressed a sealing strip which has a fixture strip running down the centre of its underneath side. At the height of the top and bottom door hinge-plates is an auxiliary hole on the door abutment side of the fold. A small space separates the auxiliary holes from the other side of the fold. A rigid plastic boring template adapted to the cross-section of the door frame has on one side of the angle-piece, a pin, and on the other side of the angle-piece a drill socket. After the bore holes have been drilled, the sealing strip is applied.
Patent DE-2405076-A1 (DE)
Title: Heater for hot water central heating - using electricity for normal requirements and combustible fuel for peak requirements
Inventor: PEPPING ERNST DR ING
IPC: F24D11/00
Filed: 1974-02-02
Abstract: Heater for hot water central heating comprises a hot water tank with electric heating system to which is attached a water heater using lignite briquettes, with its own water tank which may be connected to the other tank. A thermostat controls a valve in the outlet pipe of the secondary tank and a pump in the inlet pipe of the tank. An automatic ignition system is incorporated in the combustion chamber to ignite the lignite briquettes.
Patent DE-2436948-A1 (DE)
Title: Complete meal tray with different moulded compartments - has cutlery compartment supporting extra meal container with no wasted space
Inventor: WEIDNER WERNER DIPL ING
IPC: A47G23/06
Filed: 1974-07-31
Abstract: The disposable meal tray which can be made of foamed polystyrene and is designed to hold all the different courses for a complete meal is provided with at least one compartment (10) which is defined by two partition webs (15) or by a web (15) and a raised border section (14a) so that a container (12) holding an individual portion of food can be set on the webs to bridge the compartment (10) which is designed to hold the cutlery. There is therefore no wasted space caused by providing separate cutlery compartment and in the case of a disposable unit the cutlery can also be made of plastics which ensures a lightweight serving unit. The extra portion container (12) can be held secure against slipping if it is provided with projections which interact with the webs.
Patent DE-2438752-A1 (DE)
Title: Extra window for tractor cab - has smaller windows fitted in front and sides of cab below windscreen level
Inventor: KETTLER PAUL ERICH
IPC: B62D33/06
Filed: 1974-08-13
Abstract: The tractor cab forms a totally enclosed space for the driver and has a wrap around windscreen. The engine cowling is kept narrow to improve visibility for the driver. The front, bottom edges of the cab are fitted with rectangular windows, which can be curved slightly around the corner of the cab. Each window is fitted with elastic sealing strips and is gripped by screw clamps operated from inside the cab. A special guide under the window allows the window to be slid downwards for increased ventilation and improved visibility if the window is dirty. The window can be removed by lifting it out of the guide.
Patent DE-2439476-A1 (DE)
Title: Telephone PBX with decadal numbering - has a circuit for code numbers transmission in a two out of five code
Inventor: BYL FREDDY DIPL ING
IPC: H04Q1/39
Filed: 1974-08-16
Abstract: Relays for individual digits, made operative by the coded number transmission, retransmit the number to the marker in the tow out of five code. The series of contacts transmitting the code number consist of two series circuit containing change-over contacts (5zl etc.) whose movable contacts (1) are connected to the marker relays (Z1-Z5), and make contacts (2) through rectifiers (G1, G2) to a potential common to each series circuit. Contact of the last marking relay (e.g. tens relay Z5) is missing in one contact series (5z1 etc.) and the contact of the first marking relay (e.G. tens relay Z1) is missing in the second series (9z2 etc.).
Patent DE-2440219-A1 (DE)
Title: Hydraulic mould closure with two pressures - and valve connection between two chambers through high pressure piston
Inventor: HEHL KARL
IPC: F15B15/20
Filed: 1974-08-22
Abstract: The Parent Patent describes a hydraulic drive mechanism for an injection moulding machine for plastics or similar casting machine for metals, in which closing and opening of the mould is effected by a movement cylinder operating at relatively low force and a pressure cylinder (or holding cylinder) operating at relatively high force, the pistons of these two cylinders being linked together as an integral unit, and the pressure piston, i.e. the holding piston, having a low pressure chamber on one side and a high pressure chamber on the other side inside the cylinder; communication between these two chambers inside the cylinder is provided by ducts lying on a concentric line around the piston rod and inside the pressure piston; these ducts are blocked during the high-pressure, holding period by an annular piston, acting as a valve and having an inwardly oriented flange sliding on the cylindrical outer face of the piston rod; in the closed position, the high pressure inside the high pressure chamber presses this ring onto a shoulder of the pressure piston, acting as a valve seating; the inner cylindrical face of this valve ring slides on a ring keyed to the piston rod. In the Patent of Addition, the ring bears through a distance sleeve against a shoulder of the pressure piston, this distance sleeve acting as a guide surface for the flange of the annular piston. In a preferred arrangement, the ring is of rectangular section and is integral with the distance sleeve, these two having a common internal cylindrical surface. The length of the axial stroke of the annular piston is pref. determined by the length of the distance sleeve. A high pressure of almost any desired value can be applied in the high pressure chamber without a risk of the ring breaking through in the opposite direction. This enables a very high pressures to be applied, esp. temporarily when starting to open a mould.
Patent DE-2443256-A1 (DE)
Title: 3-Phenyl-4,5,6-trichloro-pyridazine derivs prepn - by reacting 3-phenyl-4,5-dihydro-6(1H)-pyridazones with chlorine in phosphorus oxychloride
Inventor: REICH-ROHRWIG PETER DR
IPC: C07D237/04
Filed: 1974-09-10
Abstract: 3-Phenyl-4,5,6-trichloro-pyridazine derivs. of formula (I): (where R1 and R2 are H or halogen), e.g. 3-phenyl-4,5,6-trichloropyridazine or 3-(p-chlorophenyl)-4,5,6-trichloropyridazine, are prepd. by suspending 3-phenyl-4,5-dihydro-6(5H)-pyridazones of formula (II) in POCl3 and reacting with Cl2. (I) are useful as intermediates for herbicides. Single-stage process giving (I) in good yields and purity. Starting materials (II) are obtainable by cyclising 3-(opt. substd. benzoyl)-propionic acids with hydrazine. The conversion into (I) is effected by passing Cl2 gas through a suspension of (II) in POCl3. The initial reaction temp. is pref. held below 40 degrees C, being increased to up to 100 degrees C during the course of the reaction.
Patent DE-2443451-A1 (DE)
Inventor: KREUTZER HERMANN DIPL ING
IPC: C08G63/78
Filed: 1974-09-11
Abstract: To speed up the preparation of prepolymers of ethylene glycol and terephthalic acid and fit it into a continuous polyester polycondensation and to operate the dissolution stage at atmospheric pressure, there is provided a process in which part of the prepolymer is led off out of the reaction zone and recirculated back into the mixing zone to the starting materials. Simplified apparatus, faster dissolution through the suppression of troublesome side reactions and improved product quality are achieved with an apparatus which to achieve fine comminution is equipped with a tube which extends into the mixing zone and is equipped with nozzle outlets along its length. <IMAGE>
Patent DE-2447257-A1 (DE)
Title: Device for cutting figures or designs - out of thin material e.g. plastics film, with low power consumption
Inventor: BECKESTROEM BO SVEN ERIK
IPC: B26D1/00
Filed: 1974-10-03
Abstract: A cutter features a carrier element with a knife protruding perpendicularly therefrom, the knife having a cutting edge at some distance from the surface of the carrier element; a spacer which surrounds the knife and is in spring-loaded relationship to the carrier element; a block with a groove fitting the knife. These components are arranged movably to enable the cutting operation to be effected in the groove whilst firmly clamping the film between the spacer and the block, and compressing the spacer. Extreme accuracy of the tool dimensions is not critical. Power consumption needed for the cutting-out is low. Rel. low pressure is exerted on the knife so that there is little wear on the block.
Patent DE-2448117-A1 (DE)
Title: Clock pulse train generator - delivers at least two clock pulse trains of same frequency but shifted in phase with respect to each other
Inventor: BURGERMANN NORBERT
IPC: H03K5/15
Filed: 1974-10-09
Abstract: The output resistance and power consumption of the clock pulse generator are low. It comprises a multi-vibrator (MV) which delivers at its output a signal whose frequency is a multiple of the required frequency; it is supplied with a voltage (U2) much lower than the required output voltage (U); it is connected to a counting chain (ZK) whose outputs (Q, Q) deliver pulse trains of the required frequency; each pulse train has allocated to it a dynamic resistor network (RS1, RS2), each connected to bases of a transistor pair (T1, T2) forming a push-pull stage; their supply voltage corresponds to the required output voltage (U); clock pulse trains are collected from collector resistors (R10) of the transistors.
Patent DE-2454609-A1 (DE)
Title: Variable speed electric motor - has movable permeable yoke bridging air gap between permanent stator magnets to alter flux
Inventor: VOLKRODT WOLFGANG DR ING
IPC: H02P7/285
Filed: 1974-11-18
Abstract: The variable speed motor has a mechanism in the permanently magnetic stator assembly to alter the air gap in the stator circuit and thereby alter the flux which consequently changes the speed. The halves of the stator circuit (3, 4) are separated from one another by two air gaps. A yoke (6) bridges one of these air gaps and its motion alters the flux in the stator circuit. The bridge is driven radially towards, and away from, the gap by a lever mechanism, or it may slide in and out of the gap. The highest rotational force is delivered at small revolutions which is advantageous in e.g. dough mixers and hand drills.
Patent DE-2455229-A1 (DE)
Title: Partial bypass cardiopulmonary machine - has blood reservoir with analog level indicator controlling reservoir level by pump speed control
Inventor: VALLEN HARTMUT ING GRAD
IPC: A61M1/36
Filed: 1974-11-21
Abstract: The machine, which has a blood reservoir and at least one infusion roller pump in its oxygenator circuit, has an analog filling gauge on the reservoir for continuous regulation of its volume and for the control of the speed of the roller pump automatic control system preferably the filling gauge has a P1 output, as well as an additional critical value indicator which controls a motor terminal in the oxygenator supply path, as well as an alarm. The return line, behind the reservoir and pump, has an analog pressure gauge and a pressure regulator with a P1 output coupled bit. The pressure regulator has an additional critical value indicator, controlling a motor terminal in the machine recirculation system, as well as the alarm.
Patent DE-2460549-A1 (DE)
Title: Surface vehicle location method - signals from vehicle received by several stations and transmitted to central station
Inventor: DREBINGER KLAUS
IPC: G01S5/06
Filed: 1974-12-20
Abstract: Received signals are transmitted by fixed lines to a central station, where they are evaluated by the hyperbolic method. Several signals from the vehicle are received for each location procedure by individual receiving stations, and the vehicle position is approximated by mean value formation from all propagation time differences. Addresses of all vehicles in the location system are stored. Depending on their missions they are marked with different urgency grades. The vehicles are called for their location in the order corresponding to their urgency level. The sender of the vehicle to be located is called for test signal transmission.