baber/WOPTO huggingface dataset:
Patent DE-1943123-A1 (DE)
Title: Casting of magnesium-containing ferrosilicon
Inventor: HARD ROBERT
IPC: B22D21/00
Filed: 1969-08-25
Abstract: Casting of magnesium-containing ferrosilicon This process, comprising casting the melt (1275-1350 degrees C) into elongated moulds (diam =7.5 cm) and then cooling from 1250 to 925 degrees C at a rate of at least 50 degrees C/min. according to Patent No. 1558334, is improved in that the cooling from 925 to 500 degrees C is carried out at a rate of at least 100 degrees C/min. Highly uniform distribution of magnesium is achieved and the ingots can be easily pressed.
Patent DE-1945655-A1 (DE)
Title: 1,1-difluoroethane from acetylene and - hydrogen fluoride
Inventor: SCHMIDHAMMER LUDWIG DIPL-CHEM
IPC: C07C17/08
Filed: 1969-09-09
Abstract: from acetylene and hydrogen fluoride. CHF2CH2 is prepared quantitatively from HF and HC triple bond CH (2-6:1 pref. 3:1) in HSO3F and SbF5 (0.5-6:1 pref. 1:1). Pref., temp. is 20-50 degrees C and pressure 1-11 atmos. CHF2CH3 is a valuable intermediate for polymerisable fluorovinyl cpds. and is used as a coolant or low boiling solvent eg. as an aerosol propellant.
Patent DE-1956591-A1 (DE)
Title: Mould material
Inventor: BUERGER ARNO
IPC: B29C33/52
Filed: 1969-11-11
Abstract: The material is of a suitable foam such as Styropor, treated with a resin in an alcohol solution and dried to evaporate off the alcohol. The tacky foam is exposed to a suspension bed of fireproof granular material, preferably under an electrostatic charge so that the granules adhere to the surface. The resultant material is dried and baked to produce a casting mould which will vaporise freely and leave a casting with a smooth surface.
Patent DE-1964350-A1 (DE)
Title: Anti-parodontal and anticaries compn contg - carbon dioxide
Inventor: DEGEN JOSEPH
IPC: A61Q11/00
Filed: 1969-12-23
Abstract: A prepn. for the care of the mouth and teeth and the prevention of caries paradonititis and paradontosis and of bacterial infection of the mouth and teeth contains carbonic acid or CO2 in any form, alone or together with other active materials. Suitable prepns. are natural CO2-contg. waters or water treated with CO2 under pressure to give an effervescent mouth-wash which releases CO2 into dental cavities.
Patent DE-2017589-A1 (DE)
Title: Epoxy resin and silicone rubber for sealing/ -
IPC: H05B3/48
Filed: 1970-04-13
Abstract: In prodn. of tubular heating element, liquid curable epoxy resin is dropped onto surface of filling at front end of element, then this is filled with liquid, cold-curing silicone rubber and finally the insulation bead is placed in this, as in DT 1,565,337. Epoxy resin is dropped in immediately after heating to red heat, which is carried out after reducing tube dia. by cold forming to improve flexibility and vaporise moisture in MgO. Epoxy resin is then cured, then element is bent and/or pressed into its final shape and filled with silicone rubber before inserting insulation bead. Epoxy resin ensures that no water vapour can reach inside the cause reduction in insulation resistance and hence occurrence of surface leakage currents and arcing.
Patent DE-2022200-A1 (DE)
Title: Slat conveyor belt
Inventor: HERRMANN KLAUS
IPC: D01G23/00
Filed: 1970-05-06
Abstract: Slat conveyor belt for fabrics and fibres, for textile machines, has parallel slats and an open profile against the belt, with lateral slots into which spring clamps on the belt engage. Pref. the slats are of flame-resistant, self-extinguishing glass fibre reinforced polyester. The clamps are riveted to the belt. The slats have an antistatic metal coating.
Patent DE-2033215-A1 (DE)
Title: Ore slurry microsieve - mounted on vibration bearings and with permanently attached vibrators
IPC: B07B1/00
Filed: 1970-07-04
Abstract: A steeply inclined sieve tray, with side cheeks, is mounted on a fixed frame by means of vibration bearings. On each side cheek, located on the transverse axis through the centre of gravity of the sieve, is an imbalance motor with its axis of rotation parallel to the longitudinal axis of the sieve. The motors counter-rotate, thus producing vibrations only in a direction perpendicular to the plane of the sieve.
Patent DE-2118803-A1 (DE)
Title: Electrostatic precipitator - with improved reinforcing and spacing of electrode bars
IPC: B03C3/86
Filed: 1971-04-17
Abstract: Electrostatic dust separator consists of vertical electrode bars with joints and placed at a transverse pitch by means of horizontal bars and cross bars perpendicular to the electrode wall. The horizontal and cross bars can be hollow thus reducing the weight and be of a circular, square or rectangular cross section. The reduction in the length of each electrode section reduces the height to width ratio from 20:1 to 6:1, thus increasing the stability of the electrodes even with localized temp. disturbances.
Patent DE-2142308-A1 (DE)
Title: Polyepoxide/itaconic acid coatings - made as thin sheets and powdered
Inventor: KRUEGER ALFRED
IPC: C08G59/42
Filed: 1971-08-24
Abstract: The material is made by reacting polyepoxides, of molecular wt. 1,300, and epoxy value >0.1, with itaconic acid/derivs in the form of a thin layer. The reaction is interrupted by air-cooling and the material is powdered. Its polymsn is finally completed by heat treatment when in the form of a coating.
Patent DE-2153225-A1 (DE)
Title: Blast heater and combustion shaft pipe socket connection - - with compensation thermal movement
Inventor: COENDERS WILLI
IPC: C21B9/00
Filed: 1971-10-26
Abstract: The cupola fitted blast heater and adjacent combustion shaft are interconnected by expansion compensator fitted pipe sockets with different dia. ends and interlocking reinforcement rings. Between each reinforcement ring and the pipe socket it engages adequate radial play is provided, to permit vertical displacement of the sockets relative to each other over the contact surfaces of the two reinforcement rings. The design avoids the build up of thermal stresses and thereby avoids early failure. The equipment is used in connection pig iron furnaces and therefore at extreme temp. variations.
Patent DE-2228215-A1 (DE)
Title: Bell type heat treatment furnace - with atmosphere cooling chamber
Inventor: GUINEA ELORZA
IPC: C21D9/52
Filed: 1972-06-09
Abstract: The furnace with forced controlled atmos. circulation is provided at the bottom with a water cooling coil equipped gas cooling chamber under a false heat insulator bottom. The gas enters this chamber through valves from a centrally disposed fan and leaves it via a ring space provided between the chamber and the furnace bell. The method ensures that all atmos. gas is passed through the cooling chamber thereby accelerating cooling down of the charge and achieving faster furnace cycles. The furnaces are used for heat treatment of metal sections such as steel strip etc.
Patent DE-2232277-A1 (DE)
Title: Electroless copper -plating bath - stabilised by addn of a sulphite
Inventor: HARADA FUMIO
IPC: C23C18/40
Filed: 1972-06-30
Abstract: Bath contg. a water-sol. Cu salt, a cpd. forming a complex with Cu, an alkali metal hydroxide and formaldehyde, is improved by the addn. of a sulphite, pref. 1-10 g/l or Na2SO3, K2SO3, (NH4)2SO3 or NaH2O3. The sulphite inhibits noncatalyst reactions which otherwise occur in the bulk of the soln. at higher concns. and temps. so that the process can be intensified.
Patent DE-2233489-A1 (DE)
Title: Octachloro-dipropyl ether prepn - synergistic aid for pyrethrin insecticides
Inventor: SHIMIZU YOICHI
IPC: C07C43/12
Filed: 1972-07-07
Abstract: A process for prepg. 2,3,3,3,2',3',3',3'-octachlordipropyl ether consists of reacting trichlorethylene with paraformaldehyde in the presence of AlCl3 and HCl which are added separately or simultaneously at 5-20 degrees C. The reaction mixture is poured into water, the sepd. organic layer washed, the solvent (which may be CCl4, CHCl3 or the tri-Cl-ethylene itself) removed and the residue distilled. The HCl in the reacting mixture is present at 0.2-1.0 mols per mol paraformaldehyde.
Patent DE-2304361-A1 (DE)
Title: Drying plastics material in fluid phase - esp. for precipitated polymn. prods. in the form of flakes or particles leaving a centrifuge
Inventor: OCKER HERBERT DR ING
IPC: B29C48/76
Filed: 1973-01-30
Abstract: The material to be dried is forwarded to an evapn. appts. which has >=3 successive zones, sealed from the atmos. The material is passed through each zone under reduced pressure and is subjected to heating so that the fluid is driven off and the plastic material rapidly homogenised.
Patent DE-2318414-A1 (DE)
Title: Sintered steel containing metal carbides - having high wear resistance and fatigue strength, for machine and engine components exposed to vibrations
Inventor: FREHN FRITZ
IPC: C22C33/02
Filed: 1973-04-12
Abstract: The sintered alloy comprises 50-90% steel of compsn. (wt.%) 0-1.0C (bound), 1.5-6.5C (graphite) 0.5-6.0 Si, 0-7 Al, 0-7 Mn, 0-36 Ni, 0-8 Cu, 0-0.1 Mg, 0-0.1B, 0-2.0 total Cr, Mo, V, Ti balance Fe and 10-50 wt.% metal carbide, pref. Ti carbide of which up to 50% may be replaced by other metal carbides. The alloy is machinable in the soft annealed condition, and age-hardenable to a hardness of over 55 HRc. Its damping property in this condition is >30 x 10-5 (Q-1 = delta/phi).
Patent DE-2329988-A1 (DE)
Title: Plastic packing bag for powdery material - has mixing fluid measuring channel surrounding enclosed building material mix of gypsum
Inventor: CAMPEN LEONHARD
IPC: B65D30/22
Filed: 1973-06-13
Abstract: An inner space encloses the material and a channel surrounds the outer edges of the inner space connected with one end to the inner space and sealed at its other. When the material is to be used the sealed end of the channel is opened or cut off and the channel filled by the measured vol. of fluid necessary for correct mixing. The part of the bag including the channel can be separated from a material enclosing part to form a hose connected to the material enclosing part.
Patent DE-2332554-A1 (DE)
Title: Nasal and/or nasopharyngeal tampon - has preformed rubber or plastics balloons on or around breathing tube
Inventor: SCHLOENDORFF G PROF DR MED
IPC: A61F13/20
Filed: 1973-06-27
Abstract: The balloons are shape-stable and can be inflated or filled with other media, from outside, through a feed hose, also attached to the breathing tube, after insertion into the nose. Preferably the balloons are preformed corresponding to the structure of the interior of the right or left nostril when inflated or filled, so that they are then non-displaceably seated. The middle one has a web which becomes inserted in the upper nasal passage and is thus sealingly stabilised. The insert is for treatment of nasal fracture. Painful and awkward packing of the nasal cavity with gauze strips is no longer necessary.
Patent DE-2332789-A1 (DE)
Title: Motor cycle gear change mechanism - has selector forks mounted on mainshaft together with fixed and sliding gearwheels
Inventor: SZODFRIDT IMRE DIPL ING
IPC: F16H3/08
Filed: 1973-06-28
Abstract: In mesh with the fixed gearwheels are gear change wheels that select the particular clutch for the output shaft drive required. The output shaft has a series of smooth bearing surfaces and the rims have small forks to contact the sliding wheels to move axially along the bearing surfaces. The wheels can be coupled and acted on by a double fork, fixed by a special mounting to the kick start cross shaft. The input shaft is designed as a step wheel shaft. The radial profile of the forks on the output shaft is an involute curve.
Patent DE-2334999-A1 (DE)
Title: Two-tube colour television camera - has chrominance part for generation of three narrow band colour signals
Inventor: KRAUS UWE DIPL-ING
IPC: H04N9/077
Filed: 1973-07-10
Abstract: A camera tube has a composite strip colour filter on which a real image of a coloured object is projected, which generates at the tube output a corresponding composite electric signal with an l.f. component representing the image brightness, and a pilot oscillation of frequency fp generated by a floodlight lamp in the camera; and an h.f. carrier oscillation whose frequency ft = 2fp is a.m. and f.m. with two signals corresponding to the red and blue components of the image; the pilot and h.f. oscillation frequencies and phases are rigidly interrelated; a low-pass filter separates the l.f. components, and a band-pass filter separates the h.f. carrier; two demodulators demodulate and separate the red and blue signal components, and a matrix delivers the image green component; a frequency doubler converts the pilot signal into a reference signal identical with the h.f. carrier, applied to the input of one demodulator; a phase shifter shifts the reference signal phase by 90 deg. and applies the shifted reference signal to the other demodulator.
Patent DE-2342040-A1 (DE)
Title: Film and paper strip cutting jig - has a rotary twin edged knife and two stationary counter blades
Inventor: MUNDT PETER
IPC: G03D15/10
Filed: 1973-08-20
Abstract: The cutter is designed for use in transparency framing operations where the single pictures are severed from a film strip. It can also be used to cut single copies from rolls of printed material. The rotary knife has parallel cutting edges on one side. These pass close to the edges of two stationary, spaced counter blades. The flat knife surfaces are shaped so that a transparency is deflected downwards into a frame when the knife rotates anticlockwise. To remove a splice or other waster, the knife is rotated clockwise when the material is deflected upwards. The design facilitates faster work.
Patent DE-2348106-A1 (DE)
Title: Electric cigarette lighter - like pocket torch, with glow spiral replacing bulb
Inventor: NEUTERT GUENTHER
IPC: F23Q7/00
Filed: 1973-09-25
Abstract: Electrical table or pocket cigarette lighter has the bulb of a lighter resembling a pocket electric torch substituted by a glow spiral onto which the cigarette is brought for ignition. More partic., greater convenience is obted. than with other means of lighting cigarettes. To avoid inadvertent switching on, there is a press. system, i.e. the spiral glows only when the contact lever is actuated. The lighter can be used outdoors, in storm or rain.
Patent DE-2361682-A1 (DE)
Title: Pregnan-21-oic acids prepn - by reacting 17-oxo-steroids with dialkylphosphono-alkoxy-acetic acid esters
Inventor: NEEF GUENTER DR
IPC: C07J13/00
Filed: 1973-12-08
Abstract: Derivs. of formula (I): (where R1 is CH3 or C2H5; R2 is H or CH3; X + Y in a C-C bond and R3 is 1-6C alkyl, or X is H and Y + R3 is a C-O bond; R4 is 1-8C alkyl or benzyl; and St is the residue of the steroid molecule), are prepd. by reacting 17-oxo-steroids of formula (II) with a dialkylphosphono-alkoxyacetic acid ester of formula (where R5 and R6 are 1-6C alkyl) in the presence of an alkali- or alkaline earth-contg. deprotonating agent and opt. hydrolysing the resulting (I; X + Y = C-C bond, R3 = 1-6C alkyl) by treatment with acid to give (I; X = H, Y + R3 = C-O bond). Certain of the cpds. (I) are useful as inters. for pharmacologically active steroids, while others are themselves pharmacologically active (cf. Be 779869). The new process permits (I) to be obtd. in surprisingly good yiled in a simple 1 or 2 stage process starting from readily accessible 17-oxosteroids.
Patent DE-2365664-A1 (DE)
Title: Electromagnetic relay with linear contacts - qas uniform magnetic field at right angles to the contacts
Inventor: REUTING HANS-WERNER DIPL ING
IPC: H01H51/22
Filed: 1973-09-03
Abstract: The electromagnetic relay has a permanent magnet with two poles (26, 27) in contact with contact driving members (10, 11) directly in contact with the surfaces of the contacts (14, 15). The pole pieces are linked by an anchoring arrangement (7) and the magnetic circuit path is completed a magnetically conducting yoke (13). The internal components are supported in between a pair of rectangular frame cheek-plates (1, 2). An induction coil for power operation (5) is wound around the central former and occupies the space inside the central aperture in the cheek-plates. The contact points return to the rest positions under the influence of leaf springs (17, 18).
Patent DE-2403946-A1 (DE)
Title: Dry shaving appts. with rotating cutting roller - roller engages against static sheet with upturned edges to holes
Inventor: BRAUN ARTUR
IPC: B26B19/16
Filed: 1974-01-28
Abstract: Dry shaving apparatus with a rotating cutting roller as mobile cutting component i.e. the lower blade, and a cylindrical segment formed flexible screen sheet i.e. the upper blade, which is tensioned against the lower blade. The screen sheet has, on its side turned towards the cutting roller and in the area of the edges of its holes, narrow outwards projections, the total surface area of which is low in comparison with that of the total sheet surface. The average application pressure of these hole edge projections against the blades of the cutting roller is between 5 and 5 kp/cm2 at a blade count of between 15 and 20.
Patent DE-2409419-A1 (DE)
Title: Grating for cattle stalls - consists of T-sectioned bars with cross-girders and vertical centre girders
Inventor: BRANDENBURG WILHELM
IPC: A01K1/015
Filed: 1974-02-27
Abstract: The sewage channel is spanned by flat metal bars which are firmly fixed in grooves in the top side edges of the channel, and may be concreted in. Each bar is the width of the cattle stall and is flush with the side-rims. Each metal bar has indentations along its top edge, which taper downwards. The stem of the T-shaped grating bars clamp into the indentations, and are secured by hammering, a tension-device, or the animals themselves. The length of the grating bars amounts to a multiple of the stall width. Production costs are low and the granting is easy to transport.
Patent DE-2409803-A1 (DE)
Title: Damping of rotary vibrations in axial piston hydraulic engines - floating sleeve of grease film around cylinder block provides damping characteristic
Inventor: RENIUS KARL-THEODOR DR ING
IPC: F16F15/16
Filed: 1974-03-01
Abstract: Axial piston hydraulic pump or motor cylinder block rotates about a fixed shaft coupled to the valve block with inlet and outlet connections. A swash plate coupled to the drive shaft transmits motion to the cylinder block via connecting rods. A port plate with appropriate orifices connects various cylinders with the input and output connections. In order to reduce the effect of rotational vibrations associated with such machines, a damping arrangement is incorporated in the design. A freely mounted sleeve is located with clearance around the cylinder block. The clearance is filled with grease and the assembly constitutes a damping system.
Patent DE-2410705-A1 (DE)
Title: Compressor with flexible outlet valve - has valve seat whose channels are connected to coolant circulation
Inventor: RAUSCHER WOLFGANG DIPL ING
IPC: F04B39/06
Filed: 1974-03-06
Abstract: The compressor has a flexible outlet valve which is held in the cylinder head. The valve seat has a number of holes and above the seat is arranged a curved bracket for restricting the travel of the flexible valve plate. The valve seat plate is water cooled to prevent formation of carbon deposits in the valve system. The valve seat plate has at least one transverse channel which is connected to the coolant circulation system. The coolant flows from the cylinder head housing, through the valve seat plate to the cylinder head cover plate. The cylinder head cover plate and valve seat plate can form an integral unit.
Patent DE-2417295-A1 (DE)
Title: Keyboard push-button switch - has push shaft with switching shoe having transverse recess for bridging coil spring
Inventor: SYKORA ALLAN J
IPC: H01H1/24
Filed: 1974-04-09
Abstract: The push-button has a centre aperture in the top cover of its housing for a push shaft with a switching shoe, held by a spring normally inan OFF position, in which the shoe is situated above two contacts in the bottom of the switch housing with outer terminals. The pressure shoe has a transverse recess retaining a coiled spring forming a bridging contact. The spring end turns are tangentially bent in opposite directions, which provide the bridging of the stationary contacts of the switch housing. The recess walls of the shoe are provided with holders supporting from below the moving spring ends, holding them in such position that they abut elastically the stationary contacts when the shoe is pressed down. Preferably the shoe has guides parallel to the spring ends for support on the opposite switch housing walls.
Patent DE-2420017-A1 (DE)
Title: Underfloor electrical installation with cover plate on frame - has screw connection to the electrical component inside the floor inset housing
Inventor: GIERSIEPEN HELMUT DIPL ING
IPC: H02G3/14
Filed: 1974-04-25
Abstract: The underfloor electrical installation has its housing set into the floor and its open top closed by a covering system. The covering system consists of an outer rectangular frame that covers the top edges of the housing, and an inner cover plate that rests with its underside ridge in a top-side groove in the frame. Both frame and cover plate are fixed by a screw to the electrical component inside the housing. The component is held in place by radially sprung arms. The screw that fixes the frame and the cover to the component may be replaced by some other form of locking.
Patent DE-2420766-A1 (DE)
Title: Determination of instantaneous motor fuel consumption - with pulse train dependent on consumption supplied to counter
Inventor: RABUS FRIEDRICH DIPL ING
IPC: G01F9/00
Filed: 1974-04-29
Abstract: The pulse train is fed to a counter shoe counting position is transferred to a memory as a function of the measuring unit and then reset. The value stored in the memory is displayed on an indicator. A timing frequency and the pulses dependent on the petrol consumption are supplied to a gate circuit whose output is connected to the counter. The counter value is switched through the memory to the indicator. A tachometer has connected to its output a measuring unit control whose output is coupled to the counter and memory. A display screen control can be connected in series with the measuring unit control.
Patent DE-2421875-A1 (DE)
Title: Portable steam jet cleaning device - for cleaning vehicles and machines used in building industry
Inventor: SCHOETTEN FRIEDRICH WILHELM
IPC: B08B3/02
Filed: 1974-05-07
Abstract: The device consists of a tee connector which is attached to the exhaust pipe of the road vehicle, by the adaptor. The hot exhaust gases flow through the pipe to the steam jet generator which houses a heat exchanger consisting of a central pipe surrounded by an annulus. A water supply is connected to the annulus through the branch pipe. The hot exhaust gases passing through the pipe, heat the water in the surrounding annulus and turn it into steam. On leaving the end of the small pipe, the exhaust gases suck the steam out of the annulus to form a jet which passes out through the pipe.
Patent DE-2423010-A1 (DE)
Title: Oil-water mixture separator - with filter insert of filter cloth filled with Styropor powder
Inventor: WEERTS WILHELM
IPC: B01D17/02
Filed: 1974-05-13
Abstract: An oil-water mixt. (e.g. bilge water) from which most of the oil has been removed by decanting must be reduced to 10 mg of oil per litre to meet international regulations before it can be dumped in the sea. The oil-absorbing filter used for this final operation is designed as a pass-through tank with an interchangeable filter insert sealed against the tank walls by sealing lips, and consisting of a permeable sheel (filter cloth fabric), filled with STYROPOR (RTM) powder. Filter eliminates the risk of low filtering efficiency at high flow rates by swirling of the filter material. The new filter inserts are easily disposed of burning, and are easily exchanged without environmental pollution. New inserts can accept the full flow rate at once.