baber/WOPTO huggingface dataset:
Patent DE-2334930-A1 (DE)
Title: N-carboxyanhydride peptide synthesis - on the water-soluble carrier arginyl-polyethyleneimine
Inventor: PFAENDER PETER
IPC: C07K5/06
Filed: 1973-07-10
Abstract: A procedure for synthesising peptides by the N-carboxyanhydride method on the water-soluble carrier arginyl-polyethyleneimine involves (a) preparing arginyl-polyethyleneimine from arginine N-carboxyanhydride hydrobromide and polyethyleneimine, (b) purifying this by dialysis, (d) attaching a peptide chain of the desired sequence to the purified carrier by stepwise attachment of amino-acids in the form of their N-carboxyanhydrides (functions not participating in the reaction being protected or not), purification being carried out after each step, and (e) freeing the peptide chain from the polyethyleneimine enzymatically with trypsin. All reaction steps are carried out in aqueous solution, Reaction times are short. Purification by dialysis after each step decreases the occurrence of flase peptide sequences and corresponding losses in yield. The method of separating from the carrier is specific and does not disrupt the peptide chain. The peptide is generally of much lower molecular weight than the carrier and can readily be isolated by dialysis.
Patent DE-2337984-A1 (DE)
Title: Plasticising, mixing and homogenising appts. for powders or granulates - incorporates a heatable/coolable tube fitted with baffles
Inventor: KRAUSE EUGENIA LORENIAN GEB
IPC: B01F5/06
Filed: 1973-07-26
Abstract: The appts. incorporates a heatable and/or coolable tube in which there are baffles arranged in rows transverse to the direction in which the plastics matl. flows. The individual baffle elements are arranged in staggered relationship A 1st edge of each baffle substends with the plastics stream an angle which is smaller than the angle subtended by a 2nd. edge. The device is suitable for thermoplastics or heat-settable matls. Plasticising/mixing homogenising efficiency is greatly increased compared with prior-art appts.
Patent DE-2342282-A1 (DE)
Title: Compact photo floodlight for mains electric supply - has a reflector housing with hand grip and a separate switch and fuse unit
Inventor: GOLLWITZER HANS
IPC: G03B15/03
Filed: 1973-08-22
Abstract: The design is intended to keep the overall dimensions to a minimum by improving ventilation and heat dissipation from the electrical fuse and switch aggregate. The housing has two sockets for spring safety plugs. One plug is used for connection to a mains outlet, the other for a shorter cable connection to the lamp housing which is also fitted with a spring plug. Support pins projects from the lower front of the reflector casing. These allow it to be placed face down on a support for cooling. The reduced heating improves durability.
Patent DE-2342735-A1 (DE)
Title: Liquid level no-contact float - has float body, guide tube and freely moving level indicator
Inventor: BOESCH HANS RUDOLF DR
IPC: G01F23/72
Filed: 1973-08-24
Abstract: Two annular magnets are spaced in the float body which moves round the guide tube. One annular magnet and a transmission element are arranged in the guide tube. The magnetic poles on the inner side of the annular magnets in the float body and those on the outer side of the annular magnets in the guide tube feature the same polarity symbol. The annular magnets surrounding the guide tube and the annular magnet in the guide tube consist of individual segments divided by air gaps. The measuring system is based on repelling magnetic forces which prevent the float from sliding on the guide cylinder.
Patent DE-2343093-A1 (DE)
Title: Ring-opening polymn. of cyclic olefins - producing polyalkenamers of broadened mol. wt. distribution and increased deform elasticity
Inventor: BECK MANFRED DR
IPC: C08G61/08
Filed: 1973-08-25
Abstract: Ring-opening polymerisation of cyclic olefins (I) is effected in the presence of a catalyst contng. (a) a Gp. VB or VIB metal halide and (b) a Gp, IIA, IIIA or IVA organometallic cpd. opt. in admixture with a cocatalyst and opt. in the presence of an inert org. solvent at -70 degrees C. to 60 degrees C. during or after which polymerisation 0.01-10 wt. % (based on (I)) of a cpd. contng. C=C unsaturation in conjunction with a C=O double bond (II) is added in the presence of the catalyst. The polyalkenamers, known as per se, have higher degrees of inhomogeneity and a consequently broadened m.wt. distribution besides having greatly increased Defo elasticity.
Patent DE-2345680-A1 (DE)
Title: Pressure tight instrument housing with window - has resin sealing tapered gap between window and surround
Inventor: MAASS LUDOLF
IPC: G12B9/04
Filed: 1973-09-11
Abstract: The window has a tapered edge and the metal surround has a rebate with a matching taper. The space between the two tapered surfaces is filled with a casting resin. The edge of the window and the rebate in the surround may have a tapered portion and a cylindrical portion, these tapered portions forming a conical surface for the usual typical of instrument having a circular housing.
Patent DE-2346204-A1 (DE)
Title: Transducer electrodes for filters or delay lines - based on principle of surface waves on piezoelectric substrate
Inventor: KUNY WILHELM DIPL PHYS
IPC: H03H9/145
Filed: 1973-09-13
Abstract: The transducers are designed as weighted interdigital structures with dummy prongs for as plane as possible wavefront generation. The dummy prongs are not directly connected to the adjacent prongs or to metallised edges; the prongs next to dummy prongs are interconnected by a conducting strip between the active prong and the corresponding dummy prong; or the dummy prongs are split is several parts; active prongs are, even in electrodes with phase reversal, connected to the current supplying edge metallisations only at evenly spaced points; active prongs in the overlapping areas of the opposite phase transducer zones are connected to connecting strips.
Patent DE-2352892-A1 (DE)
Title: Christmas tree stand - has centering plates on cylinder pivotable through slots in upper of displaceable inner container
Inventor: BLOM SIGVARD
IPC: A47G33/12
Filed: 1973-10-22
Abstract: Christmas tree stand has a cylinder with removable, outward-projecting feet and centering plates attached at the upper end and pivotable inward. A container with a conical lower part is displaceably mounted in the cylinder, under action of a spring and has slots in its upper region through which project the free, curved carrow sides of the centering plates. Preferably the centering plates are pivotally attached by bolts to the pairs of shackles fitted at the upper end of the cylinder. The upper end of the container has a circumferential projection in or beneath which are slots. The cylinder has lower inward bulges to receive the feet. The trunk of the tree is easily held and centered, and can be stood in water.
Patent DE-2355617-A1 (DE)
Title: Aerosol-free low-air-speed indoor air humidifier - with wide-surface ceramic units in sieve container moistened by salt-free water
Inventor: ERB ERHARD
IPC: F24F6/04
Filed: 1973-11-07
Abstract: The apparatus humidifies air without mist build-up, esp. in areas where the air temp. is low. The ceramic units in the sieve-type container have a large surface area, and are kept moist by water in which there is no salt content, container and ceramic units being mounted in the air duct for an air conditioning assembly. Here the speed of the air flowing between the units is low enough to prevent water droplets from being carried along. The ceramic units are pref. Raschig rings, in a wire mesh basket container of tin plated brass, the same material being suitable for the air duct. Water temp. is pref. between 20 and 50 deg.C. Long-lasting high output aerosol free operation is practicable.
Patent DE-2356231-A1 (DE)
Title: Plug and socket with switch for household installations - has protective poles on sides of plug and spring piston in socket pressing contacts together
Inventor: BEHRENS HANS JOACHIM
IPC: H01R13/703
Filed: 1973-11-10
Abstract: The plug with a switch, for household and industrial installations, has a short projection on its upper surface onto which a metal disc is mounted. Two poles are fixed on the sides of the plug to give total protection when the plug is inserted into its socket. The socket has a cylinder containing a helical spring acting on a piston that moves up and down between end-stps so that when the plug is inserted the contacts are pressed together. The piston has a recess in its surface to hold a metal disc that is connected via the spring to the earth line.
Patent DE-2356509-A1 (DE)
Title: Charged particles energy measurement method - uses high-pass and low-pass filters and lens systems producing a parallel particle beam
Inventor: BARZ ALFRED
IPC: H01J49/46
Filed: 1973-11-13
Abstract: The lens system can be an electric or a magnetic system, and precedes the high-pass filter. After passing through the high pass filter the particles are again focussed by a further lens system and deflected by a magnetic field towards the low-pass filter. Particles reflected from the low-pass filter pass through the lens system in the opposite direction, are focussed and deflected towards a detector. Both filters are in the form of plane, parallel grids with the electric or magnetic lens system before them, which make the particle paths parallel to each other and perpendicular to the grids.
Patent DE-2405603-A1 (DE)
Title: Motor vehicle headlamp protective cap - is between reflector and lamp socket with tongue sealed to cover socket body
Inventor: FREUDENREICH ERWIN
IPC: F21V17/00
Filed: 1974-02-06
Abstract: Motor vehicles headlamp consists of a reflector covered in front by a transparent disc and with a lamp inserted in an opening. The gap between the lamp and the reflector is covered by a protective cap of elastic material which sealingly embraces, with a middle region having an opening, the lamp socket. Its outer edge sealingly abuts the reflector or a part connected to it. A tongue is formed on the cap and projects radially into the middle opening, sealingly covering the insulator body of the lamp socket, between the floor contacts. Penetration of moisture through the lamp socket is prevented.
Patent DE-2405951-A1 (DE)
Title: Ultraviolet radiator for enclosed grill - has extra ventilator for carrying along vapour-charged air and breaking down smells
Inventor: MAISCH EMIL
IPC: F24C7/00
Filed: 1974-02-08
Abstract: The enclosed grill contains an ultraviolet radiation device for breaking down vapours to prevent the atmosphere becoming polluted. A ventilator produces an air current which flows round the radiation source, and part of which passes from there into the area in which the ultraviolet radiation acts on the air current which carries along the vapours. These air currents then leave the enclosed grill through the air outlet aperture so that the air current produced by the ventilator keeps the radiation source free of the suspended deposits in the air current entraining the vapours. This ensures that sufficient oxygen is supplied to the area of the radiation produced by the source.
Patent DE-2412583-A1 (DE)
Title: Combined washer-wiper for windscreen - with perforated hose on back of wiper blade spraying on both sides
Inventor: MAYR HEINZ
IPC: B60S1/52
Filed: 1974-03-15
Abstract: A perforated water hose is fitted to the rear of the wiper blade holder with the holes directed at the windscreen area adjacent to the wiper blade. This ensures an even distribution of the cleaning water with minimum of smear. The holes can be staggered in size and spacing to ensure an even water spread and are designed to cover the length of the blade without any overspray. Two hoses can be fitted, one each side of the blade, operated by a reciprocating valve so that the leading edge of the wiper blade is constantly provided with water, irrespective of direction of wipe.
Patent DE-2415593-A1 (DE)
Title: Bulk good silo for chemicals or minerals - with corresponding worm drive gears rotating in same direction
Inventor: GESSLER HANS
IPC: B65G65/46
Filed: 1974-03-30
Abstract: Silo for bulk goods especially slow running chemical and mineral materials with an additional friction wall between inlet and outlet openings as in 2318560. At the outlet opening usually formed by a pouring funnel there are a pair of worm drives with their axes parallel to each other and fitted almost horizontal with their spirals combing each other. The conveyor worm drives making up a pair have a pitch height with the spirals corresponding and preferably rotate in the same direction. Two screw conveyors are positioned below the exit opening, these conveyors having mutually parallel rotating axes and being associated with two respective outlet channels.
Patent DE-2420308-A1 (DE)
Title: Exhaust gas turbo-charger for combustion engine - has coolant duct extending around wall of charger outlet collector duct
Inventor: BOZUNG HANNS-GUENTHER DR ING
IPC: F04D29/58
Filed: 1974-04-26
Abstract: The turbo-charger is of the type comprising an impeller which compresses the charging air into a collector duct contained in the housing. A coolant duct is provided which extends at least part way along the wall of the collector duct. The coolant duct and the collector duct are preferably formed as an integral component. The coolant duct may be approximately U-shaped and extends around the partition wall between the coolant duct and the collector duct. This partition wall may be provided with cooling ribs extending into the coolant duct.
Patent DE-2425814-A1 (DE)
Title: Non-linear damping resistor assembly with cooling fins - to reduce heating during current surges has negative temperature coefficient
Inventor: OSTWALD HEINZ GEORG
IPC: H02H9/02
Filed: 1974-05-28
Abstract: The active material of the damping resistor, or surge diverter, is a non-linear substance with a negative temperature coefficient. This material is formed into discs (2) which are assembled into a stack to give the required damping parameters. Each disc is located in a dished plate (4), with a final flat clamping plate (5) at one end of the stack. A central bolt, suitably insulated, holds the assembly together under the action of a cup shaped spring washer. The outer dimensions of the dished plates (4) and clamp plate (5) are chosen with regard to the cooling areas required. Overtemperature protection devices may be built onto the stack.
Patent DE-2428564-A1 (DE)
Title: Pyrotechnically tightened vehicle seat belt - uses explosively operated piston to pull belt loop over rollers
Inventor: FIALA ERNST PROF DR
IPC: B60R22/28
Filed: 1974-06-14
Abstract: A cartridge (12) is fired according to a sensor to pull a loop (14) of the belt through an opening (15) to shorten the belt and tighten it about the wearer without delay. Normally in the period immediately following the cartridge firing, the belt tension rises to a peak, from which it falls away before rising again higher to the maximum-tolerance level to which it is held by a tension-limiting device. The arrangement introduces a deformable section into the belt, which can be a stretchable ring (17) which deforms to an oval (dotted) to absorb part of the initial rise in tension. This eliminates the undesired peak and gives a steady rise to the maximum.
Patent DE-2432617-A1 (DE)
Title: Urban passenger transit car flying coupling - with car coupling heads linked to two-way hydraulic piston in cylinder
Inventor: EISELE HERBERT
IPC: B61G3/00
Filed: 1974-07-06
Abstract: The mechanism is for coupling individual vehicles forming trains, esp. in short-range urban passenger transport systems, while the vehicles are on the move, without leading to jolting or injury resulting from approaches at varying speeds, and for providing for release of individual vehicles under the same conditions. For this purpose coupling, with coupling-heads (1) are mounted on the end surfaces of the vehicles, each coupling-head being connected to a piston (4) set in a cylinder (3) and can be hydraulically activated on both sides. The cylinder is pref. linked to tanks containing oil and air, with connection to a pump attached to a supply tank provided by impulse-controlled three-way valves.
Patent DE-2443359-A1 (DE)
Title: Grill with removable sides and fat tray - has fool-proof safety means preventing use without replaced parts
Inventor: MAISCH EMIL
IPC: A47J37/06
Filed: 1974-09-11
Abstract: The grill comprises removable side plates (10) which are designed to fit against the side members (12) and a circuit breaker (23) is in the lower part of one of the side members (12) and is designed to be actuated by the adjoining side plate (10) when the latter is in the correct abutting position. The circuit breaker is disposed so that it is opened when the fat tray (9) is resting on the lowermost projections of the side plates (10, 11) adapted to support a grid (16), in the correct position and not too high up which would cause overheating. The circuit breaker is linked up with the electrical control switches which can thus only be operated when the apparatus is correctly assembled.
Patent DE-2443483-A1 (DE)
Title: Metal dye complex concentrates - prepd by metallising dye in hydroxyl gp-contg solvent in presence of lithium salts
Inventor: MENNICKE WINFRIED DR
IPC: D06P1/36
Filed: 1974-09-11
Abstract: Metal dye 1:2 complexes in the form of Li salts are claimed. Also claimed are conc. solns. contg. Li salts of these complexes, OH gp-contg. org. solvents and opt. water and a process of prepg. Cr dye 1:2 complexes based on azo and azomethine dyes by chromating metallisable dyes in OH gp-contg. org. solvents in the presence of basic Li salts with Cr acetate or formate. The concentrates are storage stable and can be mixed with a large amt. (=50%) of water without precipitating the dye. Dye concn. may be as high as 40% and storage temp. as low as -15 degrees C. Used in dye baths and printing pastes for dye/printing N-contg. fibres (wool, silk, feather) as well as polyurethanes and polyamides.
Patent DE-2444098-A1 (DE)
Title: Agricultural loading vehicle with material pick-up drum - intermediate conveyor and height conveyor form tool units
Inventor: KRONE BERNARD JUN
IPC: A01D90/04
Filed: 1974-09-14
Abstract: Agricultural loading vehicle with a material pick-up device in the form of a pick-up drum, which is driven about a horizontal axis and aligned transverse to the direction of travel, with a circulating intermediate conveyor, which with the circumference of its drum body and strippers on this on one hand and with a guide wall coming from the pick-up device on the other hand, bounds a first feed channel section for harvested material and has pick-ups on the periphery of its drum body which act with blades projecting from the side of the guide wall into the first feed channel section. A height conveyor with pick-ups engages in a second feed channel section connecting with the first section and transports harvest material into a loading chamber of the vehicle. The intermediate conveyor and the height conveyor (30) form tool units fixed independently to the main frame (1) of the loading vehicle.
Patent DE-2445193-A1 (DE)
Title: Diethyl ketone prepn from ethylene, carbon monoxide and water - in inert solvent using ruthenium halide catalyst
Inventor: KUTEPOW NIKOLAUS VON DIPL CHEM
IPC: C07C45/49
Filed: 1974-09-21
Abstract: The novel prepn. of diethyl ketone comprises reacting ethylene, CO and H2O at 150-300 degrees C/100-350 atmos. press. in the presence of an inert solvent and a Ru halide or its hydrate as catalyst. Diethyl ketone is obtained in high yields and purity, almost free from by products and contg. only small amts. of ethane. The reaction is smooth. The catalyst is specif RuCl3 or RuCl3.3H2O.
Patent DE-2447058-A1 (DE)
Title: Automobile internal combustion engine - has vent pipe from crankcase warmed by preheated engine inlet air
Inventor: MEYERDIERKS DIETRICH ING GRAD
IPC: F01M5/00
Filed: 1974-10-02
Abstract: Air is supplied to the engine through a filter (1) upstream of a carburreter (3) and a throttle (4). the inlet (6) to the filter contains an adjustable mixing valve (7) which blends outside air (9) with hot air (8) from the engine casing. A vent pipe (11) comes from the crankcase housing to a pressure regulating valve (10) and continues (12) from this point to a point in the suction manifold at which there is a suitable suction pressure. The pressure regulating valve (10) is contained in a recess in the housing of the filter (1) so that it is warmed by conduction through the wall of the housing from the mixture of outside and hot air flowing through the filter.
Patent DE-2451979-A1 (DE)
Title: Fibrous alkali titanates prepd. from glassy powder - for rapid reaction in autoclave yielding pure crystalline prod.
Inventor: SHIMIZU TADAO
IPC: C01G23/00
Filed: 1974-10-31
Abstract: Fibrous alkali titanates are prepd. by melting a mixt. of a titanium cpd. and an alkali metal cpd. at >1000 degrees C, the alkali metal being Na, K, Rb or Cs, and the mixt. contg. the alkali metal cpd. and titanium cpd. in a molar ratio >1.0 in terms of M2O:TiO2 where M is Na, K, Rb or Cs; cooling the thus melted prod. so as to form a vitreous matl.; pulverising into a powder, treating the powder in an autoclave in the presence of water at >350 degrees C and a pressure >100 atmospheres so as to form fibrous alkali titanate; and washing the prod.
Patent DE-2453149-A1 (DE)
Title: Motor vehicle speed control with acceleration function - uses preset potentiometer in transistor circuit to avoid close tolerances or selected devices
Inventor: WALKER JAMES T
IPC: F02D29/02
Filed: 1974-11-08
Abstract: A voltage source produces a voltage proportional to the speed of the vehicle and communicates this to a low leakage reference capacitor connected to the gate of an IGFET used as a source follower. Any variation causes a variation in the voltage drop across a resistor, sensed by a servo unit and used to adjust the engine throttle. A potentiometer is preset to provide a voltage at the junction of the reference capacitor and the IGFET to achieve the correct relationship between the voltage source and the servo to avoid component selection. The acceleration function is achieved by a 0.6 volt drop across a diode, used to vary the voltage at the junction of the reference capacitor and the IGFET with a time constant determined by a resistor and a capacitor.
Patent DE-2501478-A1 (DE)
Title: Folding partition wall sealing battery extending mechanism - comprising tension organ incorporating draw cable deflectable sideways for retraction
IPC: E04B2/82
Filed: 1975-01-16
Abstract: The wall element is used esp. for making up movable flat folding partition walls, for dividing up large multipurpose interiors, the individually movable elements being hung on ceiling rails and also partially guided on the floor: they incorporate sealing battens, which are extensible by means of elastic spring pressure and retractable by means of draw members at the top and bottom. There is a continuous tension member for both sealing battens (19, 20), formed at least in part in the shape of a draw cable (26), and this can be deflected sideways for retraction of the sealing battens, pref. by means of a rotatable toggle (27) in the plane of the wall element (10). The cable is pref. led in a straight line when the sealing battens are extended, lying between two pulleys (29, 30) which are stied one above the other and offset sideways. Sealing batten activator construction and operation are simplified.
Patent DE-2505439-A1 (DE)
Title: Sack opening and emptying machine - has two motor-driven circular knives on swing arms whose paths intersect
Inventor: STEIPER OTTO
IPC: B65B69/00
Filed: 1975-02-08
Abstract: The machine cuts open sacks of paper or plastic filled with material in bulk, and provides semi-automatic and dustless emptying of them into a hopper, from which the material is further conveyed by gravity or by pneumatic or mechanical transporters. There are two circular knives, preferably driven by compressed-air motors, and each mounted on an arm swung preferably by a pneumatic actuator. They are so arranged that as they swing and rotate the two lines cut by them intersect. The arm pivot axes can lie in the same plane, but inclined to each other.