baber/WOPTO huggingface dataset:
Patent DE-2239968-A1 (DE)
Title: Blue azo dyes - for dyeing/printing cellulose acetate and polyesters shades fast towashing and colour loss
Inventor: WEAVER MAX ALLAN
IPC: C09B29/08
Filed: 1972-08-14
Abstract: Dyes are of formula (I): (where R' is short chain alkyl opt. substd. by at least one OH, short-chain alkoxy, cyano and/or short chain alkanoyloxy, or cyclohexyl or short-chain alkoxy; R2 is 1-8C alkyl or short chain alkyl opt. substd. by at least one short-chain alkoxy and/or cyclohexyl). E.g. N-sec. butyl-N-(2:3-dihydroxypropyl)-3-acetamidoaniline coupling component is prepared by reacting N-sec-butyl-3-acetamidoaniline with glycidol. It is coupled with diazotised 2-bromo-6-cyano- -nitroaniline and the azo cpd. formed is reacted with cuproxyanide to give 3-acetamido-4-(2:6-dicyano-4-nitrophenyl-azo)-N-sec. butyl-N-(2:3-dihydroxypropyl)-aniline. Dyeings show to redness in artificial light.
Patent DE-2316289-A1 (DE)
Title: Rapidly hardenable lacquer coatings - contg. aminoplast, polyester resin, para-toluene sulphonic acid and opt. polyvalent alcohol
Inventor: SCHWARZ GUENTHER
IPC: D06M15/507
Filed: 1973-03-31
Abstract: rapidly hardenable coatings for wood contain a soln. or dispersion of a low mol. aminoplast resin, methylolated with mono- or poly-valent alcohols with >=1 functional gp. and (A) 3-50, pref. 11-25% polyester resin with a mol.wt. 200-6,000 and hydroxyl no. =450, (B) 6-20, pref.8-18%, p-toluenesulphonic acid and opt. (C) 4-30, pref. 12-24%, of an alcohol with >=2 prim. and/or sec. OH gps.; all %'s based on the aminoplast resin.
Patent DE-2320799-A1 (DE)
Title: Purifying waste water from paper industry - by adsorption with (gamma)- alumina in suspension
Inventor: PLOETZ THEODOR PROF DR
IPC: C02F1/28
Filed: 1973-04-25
Abstract: Waste water, partic. from pulp, paper and cardboard industries, is purified, opt. after preliminary purificn. by treatment with Al oxide as adsorbent. Al oxide has a large surface area and is pref. gamma-Al2O3. Activity can be improved by controlling the waste water pH. Al2O3, is used esp. as suspended granulates, having av. grain-size >30 mu, and kept in suspension by slow stirring. Content of Al2O3 and waste water takes place pref. in counter-current, opt. continuously. Spent Al2O3 is removed and replaced by fresh or regenerated Al2O3. A cylindrical vertical column is used, waste water being supplied at bottom and adsorbent at top, with extn. of purified water at top. Spent Al2O3 is regenerated by calcining at 400-900 (500-600) degrees C without sintering.
Patent DE-2329932-A1 (DE)
Title: Dough portioning and handling machine - with easily interchangeable portioning wheels for accurately measured widely ranging quantities
Inventor: SCHUEPFERLING REINHARD
IPC: A21C5/06
Filed: 1973-06-13
Abstract: A cheap, easily adjusted and accurate dispensing machine for portions of dough, has a horizontal filling cylinder with a piston arranged beneath a hopper and moving in sequence with an adjacent chambered wheel which swings through 180 degrees from the filling to the ejecting stations. In each of the portioning chambers of the wheel, a piston with a shaft carrying a cam follower is adjustable as regards its inmost position when the dough is pressed into the chamber, and it follows a cam block to eject the portion for further handling.
Patent DE-2333836-A1 (DE)
Title: Extraction of vanadium oxide cpds from foundry slag - using dil phosphoric acid after preliminary oxidising roasting
Inventor: SLOTWINSKIJ-SIDAK NIKOLAJ P
IPC: C22B7/04
Filed: 1973-07-03
Abstract: Foundry slag is subjected to preliminery oxidising roasting opt. with addition of lime, and the finely comminuted (0.1 mm) product having the ratio V2O5:CaO >0.05 is leached with a 5-20 wt.% phosphoric acid soln. at 50-100 degrees C and a liquid:solid ratio of 2:1 to 10:1, for 30-120 mins. High degree of vanadium recovery is achieved (80-92%). The residue can be used as fertiliser.
Patent DE-2334679-A1 (DE)
Title: Measurement of frequency dependent damping in telecommunication lines - involves sending coded data from central exchange to measuring point
Inventor: VIERLING OSKAR PROF DR PHIL HA
IPC: H04B3/48
Filed: 1973-07-07
Abstract: Damping between measuring and end-points is measured in both directions using signal voltage amplitudes or frequency variations. An analogue to digital converter at the measuring point transmits coded signals back to the central exchange via a single data channel. The appts. is used in speech telecommunication lines; at the central exchange there is a computer with a store, and the amount of distortion is measured. Corrections may then be applied to signals being sent out or to incoming signals. A known test signal may be used.
Patent DE-2336402-A1 (DE)
Title: Electrochemical analyser for ion concentration in liquid - has two identical electrodes immersed into the tested solution
Inventor: QUERRY MICHEL
IPC: G01N27/416
Filed: 1973-07-17
Abstract: A voltage is maintained between the electrodes; and there is a liquid stirring device and a device measuring current intensity between the electrodes; a switch applies different voltages to the electrodes, so that different types of ions in the bath can be detected. If the liquid used for processing contains FeCl3, the active part of the electrodes is made of amorphous carbon, and the voltage applied to the electrodes is of the order of 0.8 V.; the liquid stirrer has a turbine centrifuge; the analyser is made of chemically inert materials which can stand temperatures up to 105 deg.C; each electrode is made of an amorphous, glass-like carbon held in a tube, connected by a mercury drop to a molybdenum wire.
Patent DE-2338200-A1 (DE)
Title: Die casting machine clutch - used in drive to shift screw cores of moulds
Inventor: SCHNEE WALTER
IPC: B29C45/26
Filed: 1973-07-27
Abstract: The gear is used to move the screw arc mould in a die-casting machine to and from an exact final position, has a coupling which works with the power stroke in one direction and against the return stroke in the other. A cut-out mechanism on a switchboard is synchronised with a zone which works by frictional force, and this force can be adjusted by means of a spring loaded collar shifted by an adjusting screw.
Patent DE-2338273-A1 (DE)
Title: Pipe insulation for plumbing - decorative plastics casing houses synthetic resin insulation
Inventor: FIEBICH REINHOLD
IPC: F16L59/04
Filed: 1973-07-27
Abstract: The insulation system is intended mainly for hot water pipes especially when they run parallel to a cold water pipe. The adjacent wall or ceiling is provided with clips of U section of unequal legs with a screw through a hole in the longer leg securing the clip to the wall. The plastic casing is formed in an inverted top-hat section, the outward facing flanges being sprung into the grooves after the space between the pipes has been filled with synthetic resin insulating material. If the pipes are near to both wall and ceiling an L shape plastic section is used. The sections give a decorative external appearance.
Patent DE-2347334-A1 (DE)
Title: Rotary sliding vane engine - has vanes in angularly spaced apertures of rotor and expansion and combustion chambers
Inventor: BENTLEY ARTHUR P
IPC: F01C1/344
Filed: 1973-09-20
Abstract: Closed rotary vane i.c. engine consists of a housing which forms a motor chamber of elliptical shape, with an engine block fastened between the housing's 2 sidewalls and having a cover surface forming, with the inner surface, a rotor chamber, in the middle of which a shaft is rotatably mounted in the sidewalls. The rotor is mounted on the shaft and has planar side faces slidingly contacting the inner surfaces of the sidewalls and a cylindrical surface. Radial apertures in the rotor are angularly spaced and open toward the cylindrical surface, each with planar side faces and a base surface, and with sliding vanes mounted in them, with an expansion chamber ending externally in a lateral passage. Combustion chambers one for each aperture, are between their side faces and open to the cylindrical surface, each with an end surface and an inclined base surface ending at the cylindrical surface. A passage extends from the end surface to the side surface of the adjacent aperture, and is aligned with a lateral aperture in the associated vane when this is retracted into the aperture.
Patent DE-2349273-A1 (DE)
Title: Graining swage block - for underwater granulating of thermoplastic material with improved temp control of block
Inventor: FRANZE JOSEPH
IPC: B29C48/04
Filed: 1973-10-01
Abstract: The cutting side of the swage block is flushed with coolant whilst the plate orifices contain insulated jet tubes, in which the swage block, which is made up of several parts, has tempering chamber between the distributor and face plate as well as an insulation chamber sepd. from the tempering chamber by an intermediate plate whilst the jet tubes in the distributor channels penetrate the chambers and discharge into the face plate. Pref. the tempering chamber is an annular groove in the distributor body with supply lines for the tempering medium. Jet tubes, intermediate plate and face plate are all made of a metal with a low heat conductivity.
Patent DE-2351630-A1 (DE)
Title: Industrial or municipal refuse utilisation - as source of aliphatics and aromatics, fillers and cellulose-contg raw materials
IPC: C04B18/30
Filed: 1973-10-15
Abstract: Processed refuse, esp. industrial or municipal refuse from refuse-dressing plant consisting of a sorting device with lined-up breaking up or of a composting device, is utilised in plastics-, building- and chemical industries. Pref. the processed waste is used (i) as fillers in plastics, building, stone and soil industries; (ii) as extd. raw materials for chemical processing to organic adhesives and coating media, binders, sealing- and water-proofing compsns., (iii) as high cellulose-contg. solids for paper and cardboard industries.
Patent DE-2353604-A1 (DE)
Title: Temp. control in cryostats - above b.pt. of gas by heat source to create quasistatic bubble below liquid
Inventor: ALPEN ULRICH VON DR
IPC: F25D3/10
Filed: 1973-09-24
Abstract: Temp. in crystals which use a liquefied gas as a source of cooling is controlled simply by a lit. input. The cryogenic liquid is held in container below which is smaller vessel which is thermally insulated. The gap between the two an insulating plug which forms a narrow gap through which the liquid can pass. At the base is a conducting plate with heater in it. Above this a gas bubble forms and a state of equilibrium with the liquid above is achieved. The temp. of the cryostat is then determined by the amount of heat injected by heater. If no heat is injected, the temp. is the boiling pt. As more heat is injected this rises to some level above the boiling pt. The aperture also affects the correlation between the two.
Patent DE-2355196-A1 (DE)
Title: Powdery material pneumatic conveyor - has two superimposed alternating out of phase magnetic fields agitating material
Inventor: WALDORF ALBERT
IPC: B65G53/52
Filed: 1973-11-05
Abstract: The pulverised material is pneumatically transported in the pipe, and kept permanently in motion in the latter by means of an alternating electrical field. The latter is the resultant of two or more superimposed fields intersecting in the plane of the pipe cross-section, and out of phase with each other. It can be generated by pairs of electrodes running in the lengthwise direction of the pipe on the outside, and at equal angular intervals, or alternatively on the inside, or embedded in the material of the pipe. The advantage is that no bridging of the material occurs, with consequent short-circuiting, along the pipe walls between the electrodes.
Patent DE-2355929-A1 (DE)
Title: Appts. for welding together plastic tubes - with fixed tube clamping device and movable tube clamping device
Inventor: PROVINCE WILLIAM F
IPC: B29C65/02
Filed: 1973-11-08
Abstract: Welding appts. for connecting plastic tubes has a first tube clamping device fastened rigidly to the frame, and a second tube clamping device that can be moved along the frame in an axial direction, at least piston, rod that is fastened on the frame for moving and guiding the second tube clamping device, runs parallel to the axis of the first tube clamping device, and is equipped with a piston, a cylinder enclosing the piston and the piston rod, this cylinder being fastened to, and supporting, the second tube clamping device, pipes running along the axis of the piston rods between each end and the cylinder chambers on each side of the piston, and a device for selectivity supplying pressurised liq. into one of the pipes, so that the piston rod can serve simultaneously as supply line for the pressurised liq. to the cylinder, and as guide for the second tube clamping device. The movable tube clamping device is moved hydraulically, thus enabling large tubes to be handled.
Patent DE-2362863-A1 (DE)
Title: Object distance measuring system with dual viewing system - with alternate viewing of bright and dark images
Inventor: SIEBECKER HANS DIPL ING DR
IPC: G02B23/12
Filed: 1973-12-18
Abstract: A bright scene is viewed with one eye e.g. through a telescope and is then faded out by means of a diaphragm. The other eye then views a darker image of the same scene on a screen through a second optical system. Pref. the darker image is produced by illuminating the scene with a pulsed laser, whereby the natural light is eliminated by means of an interference filter and only the reflected light is brought to the screen by the gated viewing technique. An image intensifier is pref. used to produce the darker image.
Patent DE-2365842-A1 (DE)
Title: Opt. substd. cyanide contg. tris-amino-pyridine prepn. - from pyridinium salts and amines and use as couplers in azo dye prodn.
Inventor: MORITZ KARL-LUDWIG DR
IPC: C07D213/85
Filed: 1973-02-14
Abstract: of formula (I): (where R is alkyl, cycloalkyl, aralkyl or aryl; R1 is H, alkyl or aralkyl; R2 is alkyl, aralkyl or aryl and X is -CN, an opt. substd. carbonamide or carboxylic ester gp.), are used as coupling components for synthesis of azo dyes, for dyeing and printing synthetic materials, e.g. polyolefins, polyvinyl cpds., cellulose 2 1/2-acetate, cellulose triacetate and esp. polyester materials, e.g. polyethylene glycol terephthalate. (I) are prepd. by reacting pyridinium salts of formula (II): with >=2 equiv. amine NH2R2 at 110-130 degrees C, and opt. converting -CN gp. into an ester or amide gp. Reaction can take place in excess amine or in an inert solvent, e.g. CHCl3, acetonitrile or tetrahydrofuran.
Patent DE-2400743-A1 (DE)
Title: Heel hold for a safety ski binding - has heel downholding section detachable against spring with swivel bearing between storage and operating positions
Inventor: LUITZ MAX
IPC: A63C9/00
Filed: 1974-01-08
Abstract: The heel hold is for a ski safety binding with a downholding section which partially surrounds the ski boot heel. This downholding section is located on the ski and detachable against spring pressure with a swivel bearing providing movement between two end positions. The downholding section has a locking element with a nose which when in the closed position fits into a cam of a locking device. The locking element has a swivel bearing inside the down holding section and is activated by a detaching lever section. The locking element is made in one piece with the storage section on the ski.
Patent DE-2405043-A1 (DE)
Title: Storage of fever thermometer for prompt use - has cylindrical receptacle partly enclosing thermometer
Inventor: MUELLER-MELLENBERG H-JOACHIM
IPC: G01K1/08
Filed: 1974-02-02
Abstract: The internal diameter of the receptacle is considerably larger than the external diameter of the thermometer to be kept in it. The open end of the receptacle has attached to it a cap which fixes the thermometer detachably in the centre of the receptacle and which has a central opening. The receptacle is shorter than the thermometer it is intended to hold. The cap can be plugged into the end of the receptacle by means of a flange attachment and the receptacle can taper conically from the end of the cap to the ground.
Patent DE-2408232-A1 (DE)
Title: Strongly surface-structured building panel or moulding - comprises resin-impregnated wood fibre core and readily deformable top layer(s)
Inventor: KLINGEL HANS
IPC: B27N3/06
Filed: 1974-02-21
Abstract: A strongly surface-structured moulding or building panel of resin-impregnated moulding cpd. features (pref.) polyester- or polyurethane-impregnated wood-fibre core which is covered on one or both sides with top layer(s) such that deformation similar to deep-drawing occurs even under rel. low pressure during lamination, so that a dense and compact surface is achieved and very firm bonding to the core is obtd. Used for door panels, claddings, balustrades for balconies, etc. Process combines structural characteristics of metal panels with cheap prodn.
Patent DE-2412570-A1 (DE)
Title: Sectional ladder with sliding length adjustment - has locking bracket and pins for turning ladder into trestle
Inventor: ERNST SEBASTIAN
IPC: E06C1/32
Filed: 1974-03-15
Abstract: The extending ladder consists of two sections which can be adjusted relative to each other and locked in required extended length. The sliding section is guided by the brackets fixed on the upper ends of the lower, fixed ladder section struts. These brackets enclose the struts of the sliding ladder section. These brackets have upwards pointing, curved, sloping pins. These pins engage with the pairs of holes in the sliding ladder section struts when this section is tilted relative to the other section. The pairs of holes are arranged at given spacing. This connection method enures that an extending ladder can also be used as a trestle type ladder which is self supporting and can be used for example on staircases and other difficult places.
Patent DE-2416132-A1 (DE)
Title: Electro-pneumatic rotary and impact drill - tapered nose has pair of slots for tool freeing device
Inventor: SPIETH MANFRED
IPC: E21B17/03
Filed: 1974-04-03
Abstract: An electro-pneumatic drill in which the rotation of the drilling tool can be supplemented by blows from the pneumatically operated impact device, and with a bush on the end of the housing which is turned to cut out the impact device, has the tool holder passing through this bush, and the tool holder terminates in a tapered nose to hold the drilling bit, the nose being internally tapered also. The rear part of the tapered portion has a pair of slots through it for insertion of a device to free the drilling bit.
Patent DE-2427193-A1 (DE)
Title: Height - adjusting chair mounted on four-legged two-part frame - has interchangeable different height spacers and connector for forming seating rows
Inventor: SCHULTZ FRIEDRICH KARL
IPC: A47C3/20
Filed: 1974-06-05
Abstract: A support frame has four legs made from two U-shaped members and so that the height can be altered spacer elements (7, 8) are detachably fastened between the support frame and the seat by long screws (10) and winged nuts (11). The spacers (7, 8) can be in the form of small rollers or blocks which come in different sizes. a flat steel connector (9) can be screwed onto the bottom of the support frame so that seating rows can be made up and locked together. For this purpose the steel connector has bore holes mounted at different spacing. This flat steel connector (9) is mounted concealed held in place by the winged nuts when the seat is used as an individual chair but when used for seating rows the nuts are unscrewed and the connector is turned 90 deg. to meet up with the connector of the adjoining chair.
Patent DE-2429704-A1 (DE)
Title: Water tight cap for hydraulic reservoir - with one-way valves and flanges to prevent entry of water
Inventor: TANDLER PETER
IPC: B60T11/26
Filed: 1974-06-20
Abstract: A special cap (4) is fitted to the underside of the hydraulic fluid reservoir cover. The cap has two sets of one way valves formed by plastic lips (11, 12, and 13, 14) moulded into conical valves (9, 10). The air inlet valve (10) is provided with a flange (8) which raises the inlet to above the level of the floor of the cap so that any water collected in the cap does not drain into the hydraulic fluid. The excess pressure valve (9) has its lips above the level of the cap for the same reason. The air inlet/outlet hole (15) in the cover is offset from the two valves to prevent direct entry of water.
Patent DE-2432874-A1 (DE)
Title: Steering column mounted switch - with eccentric cam to provide intermediate switch position with different applied pressure
Inventor: ERDELITSCH HERBERT
IPC: B60Q1/14
Filed: 1974-07-09
Abstract: The steering column switch operates a switch element (10) which pivots in the forked ends of the lever and which is moved from one ratchet peg (14) to the other. In order to provide an intermediate switch position to operate the contacts without reaching the ratchet pegs, the pivot (12) has an eccentric outline which interacts with a profiled surface (22) of the spring loaded plate mounted inside the control lever. The switch is thus moved into the closed contacts position by slight lever pressure, and into the ratchet position by increased pressure. No extra moving parts are required for the switch.
Patent DE-2436955-A1 (DE)
Title: De-silvering electroplated metal parts - in soln contg conc sulphuric acid, barium nitrate, potassium chromate and nitric acid
Inventor: KRUG THEO
IPC: C23F1/44
Filed: 1974-07-31
Abstract: metal parts are de-silvered by cleaning to remove fat residues, drying and then introducing into a de-silvering soln. consisting of 1800 pts. wt. concn. H2SO4, 100 pts. wt. Ba nitrate, 35 pts. wt. K chromate and 1 pt. wt. conc. HNO3 and keeping in soln., with shaking until Ag coating is removed. The process is used esp. for brass parts, e.g. precision engineering parts, partic. contacts for signalling plant. Ag can be recovered and de-silvered parts can be re-used. During dwelling-time of metal parts, de-silvering soln. is pref. kept at =40 degrees C for about 15 min.
Patent DE-2438393-A1 (DE)
Title: Plate mounting for square testing and measuring device - has measuring box fitted into square aperture in plate
Inventor: HORNER ALBERT
IPC: H05K7/12
Filed: 1974-08-09
Abstract: The measuring device (1) is in the shape of a cube, and fits into a square opening (8) in the mounting plate (2), with a holder, for maintaining the device in position, in the form of a one-piece moulding (10) with four sides, for enclosing the four sides of the device (1). The latter has a rectangular projecting surface (6) provided on each side face and the moulding (10) has an indented rim (13) for locating the projecting surfaces (6) on two opposed sides, and a slot for accommodating the projecting surfaces (6) on the remaining opposing two sides. The internal dimension of the moulding (13) correspond to the external dimensions of the device (1).
Patent DE-2455689-A1 (DE)
Title: Flap to prevent premature removal of housing cover - is by covering one set of retaining screws until another set are removed
Inventor: UNGER HANS
IPC: H05K5/02
Filed: 1974-11-25
Abstract: The cover flap prevents the cover plate of one housing being removed before that of an adjacent housing. The flexible flap consists of an angled strip (4) held down at one end to the first housing by the fixing screw (5) of that housing cover plate, and looping over and under the head of the fixing screw (1) belonging to the cover plate of the second adjacent housing -- i.e. the housing whose cover plate must not be removed before the first. The flexible cover flap is made of plastic.