baber/WOPTO huggingface dataset:
Patent DE-2301987-A1 (DE)
Title: Desulphurization of pig iron - by treating the liquid pig iron with a calcium compound and a hydrocarbon
Inventor: PUTZIER UDO DR
IPC: C21C1/02
Filed: 1973-01-16
Abstract: The usual hazards of ignition encountered with these two agents are avoided by using a solids mixt. comprising finely divided lime and a fine-grained hydrocarbon. Pref. the solid hydrocarbon has the same particle size as the lime and is 1 mm. The mixt. is introduced into the bath using a pneumatic feed.
Patent DE-2303900-A1 (DE)
Title: Ferromagnetic metal powder prodn - for use in recording tapes
Inventor: AONUMA MASASHI
IPC: H01F1/06
Filed: 1973-01-26
Abstract: The ferromagnetic metal powder contg. Co and/or Ni has a square hysteresis loop, high coercive force, and high max. permanent flux desity. The powder is prepd. by redn. of a metal salt in an aq. soln. in the presence of hypophosphite ions and an org. solvent under a magnetic field. Pref. the powder is composed of a salt of Ni and/or Co, and contains 0.5-15 wt.% P and 0-10 wt.% (based on Ni or Co) of a salt of a different metal, obtd. from a metal salt of La, Ce, Nd, Sm, Al, S, Cr, Mn, Fe, Cu or Zn, the salt being a sulphate, chloride, nitrate, formiate, a etate, sulphamate, or pyrophosphate. The metal ions concn. in the aq. soln. is 0.001-1 mole/l and the pH is 5.
Patent DE-2307850-A1 (DE)
Title: Wire screen cylinder - of cellular construction defined by peripheral array of axial channels with vent holes
Inventor: SCHIEL CHRISTIAN
IPC: D21F1/60
Filed: 1973-02-17
Abstract: Cellular wire screen supporting cylinder includes a perforated sleeve provided along its periphery with peripherally spaced axially extending channels formed by respective pairs of webs whose flanges are provided with vent openings. Marking of paper web is prevented.
Patent DE-2325976-A1 (DE)
Title: Aqs. alkaline zirconium silicate polishing compsns. - used to form scratch free surfaces on silicon and germanium wafers, for semiconductor
Inventor: GAMBALE JAMES RICHARD
IPC: C09K3/14
Filed: 1973-05-22
Abstract: Title compsns. have particle size 2 mu and ave. particle size 1 mu, pref. 0.5 mu and opt. contain >=0.1 wt. % of oxidizing agent e.g. KMnO4, NaOCl. pH of compsn. is not critical but is pref. is not 7 and esp. is not 10 optionally 10-14 and is maintained by addn. of >0.05 wt. % of e.g. alkaline or alkaline earth oxide, hydroxide, or basic salt. Compsn. can be solid or an aq. paste contg. 5-90% solids, and opt. contains conventional polishing agents e.g. oxides of Ce, Al, Fe III, or Zr.
Patent DE-2345442-A1 (DE)
Title: Aminophenylethanolamines and oxazolidines - beta-2-mimetics, beta-1-inhibitors, analgesics, uterospasmolytics, and antispastics
Inventor: ENGELHARDT GUENTHER DR
IPC: C07D263/04
Filed: 1973-09-08
Abstract: Title cpds. are of formulae (I) and (II), including optical isomers and salts, where R1=H, F, Cl, Br, I, or CN; R2=F, 1-5C alkyl opt. subst. by OH, NH2, or N (alkyl)2, CF3, alkoxy, NO2, CN, CO2H, CO2 alkyl, or CONH2; R3 and R4 = H, 1-6C alkyl, hydroxyalkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkinyl, or opt. subst. aralkyl; and R5=H or alkyl. (I) are prepd. by various standard routes including reduction of acetophenones, alpha-diketones, ketoaliohols, or 4-nitro-derivs., halogenation of I (R1=H) etc.
Patent DE-2345715-A1 (DE)
Title: Building site weather protective tarpaulin cover structure - has peripheral frame groove widened for fixing tarpaulin edge locking spring
Inventor: STEGEMANN GEB SCHMOLL ANNELIES
IPC: E04G21/28
Filed: 1973-09-11
Abstract: The tarpaulin structure is intended for screening window and door openings and other open spaces in uncompleted buildings, esp. in winter, and for keeping dust out. The groove on one side of the frame periphery has a widening bend inwards towards the frame inner edge, the outside edge of the tarpaulin being attached to it by means of a locking spring of corresponding shape, preferably of elastic material. The frame may be divided by one or more intermediate bars with a side groove widened on both sides for accommodation of two locking springs. Even pressure is exerted under wind or other stress, preventing the tarpaulin detachment or tearing.
Patent DE-2349376-A1 (DE)
Title: Washing tower for fruit in boxes - has motorized cage for lowering stacks of boxes into base washing container
Inventor: FURLANI PIETRO
IPC: A23N12/02
Filed: 1973-10-02
Abstract: Fruit in baskets or boxes is washed and cleansed in a washing tower which has a sump with the washing liq. at its base. A cage which can be lowered by motor-driven system accepts the boxes on its platform. It is then dipped and finally raised again. The tower can be combined with a portable drying unit as a trailer. This saves the laborious manual operation to wash and clean every box with fruit.
Patent DE-2357561-A1 (DE)
Title: Circuit for flashing indicators of a vehicle - has central timer producing two different flashing frequencies for fault diagnosing
Inventor: PROHASKA HANS
IPC: B60Q11/00
Filed: 1973-11-17
Abstract: Flashing circuit for travelling direction indicator has a central constantly connected timing device. The flashing circuit actuated by thi timing device is connected by the direction indicator switch. A control relay in the circuit switches the central timing device to a higher frequency when one flashing light fails. The central timing device can produce two different pulse frequencies of equal period and equal pulse time and pause time. However, the contact ensures that two pulses are produced witin a whole pulse time while contact produces only one such pulse. The increased frequenc is hence a definite indication of the fault situation.
Patent DE-2361445-A1 (DE)
Title: Hammer jaw attachment for hand drilling machine - is used to flatten folded edges of thin sheet metal
Inventor: BLEYER FRANZ ING
IPC: B21D39/02
Filed: 1973-12-10
Abstract: The jaw attachment body carries two parallel jaws in such a way that the jaw sections which are outside the body form a gap. This gap opens and closes as the attachment is operating. One jaw is stationary whilst the second one is driven by the crank shaft so that it moves with reciprocating motion. The crank shaft in turn is driven by the shaft of the hand drilling machine. The location of the moving jaw is provided with a compression spring and a screw ring so that the gap between the jaws can be adjusted.
Patent DE-2400630-A1 (DE)
Title: Double roller castor for furniture - has expanding rings on pin ends for positive axial roller fixing
Inventor: MAIER HANS-CHRISTIAN
IPC: B60B33/00
Filed: 1974-01-08
Abstract: The double-ended pin is rigidly pressed onto the swivelling castor body. Each pin end is provided with an annular recess into which an expanding ring is fitted. The hub of the roller is provided with a blind bore of a reduced diameter at the blank end of the hub. Into the part with the larger diameter a bushing is pressed having such a wall thickness that between the blank end diameter and the adjacent edge of the bushing a shoulder is created. When the roller is forced onto the pin, the expanding ring at the pin end snaps into position when the roller hub touches the face of the swivelling castro body.
Patent DE-2401422-A1 (DE)
Title: Alarm clock with electric alarm and illuminated dial - has switch provided with contacts for alarm and light source
Inventor: SCHLENKER WALTER
IPC: G04C21/20
Filed: 1974-01-12
Abstract: The switch can be brought into one of three positions, in the first of which the alarm is blocked in the second of which the alarm is operational, and in the third of which the light source for illuminating the clock face is switched on. The switch comprises a slider having an indulated spring blade on the inner side fo the clock housing, with a switch arm for opening the alarm circuit in the first switch position. This spring blade is further provided with two spaced contacts cooperating with corresponding contacts in the current path of the light source in the third switch position.
Patent DE-2404830-A1 (DE)
Title: Heat exchanger for volatilising dilution materials - has inward-tapering hollow cylindrical body with beadings at ends and middle
IPC: F27D13/00
Filed: 1974-02-01
Abstract: Heat exchanger is for volatilization of dilution materials in rotary evaporators, e.g. in preheaters for rotary kilns, and has a cylindrical hollow body, tapering toward the middle and having outward-directed, radial circumferential beadings at its ends and in the middle, and also having axially-extending, inner and outer ribs. Preferably the body has openings between the beads and ribs. The beadings and ribs conically taper outward. More partic., the heat exchange element is designed to have good gas permeability and a large surface, and cleans off adherent material well.
Patent DE-2406009-A1 (DE)
Title: Barograph with pen and recording drum - has pen stationary in air pressure directions and drum is moved by air pressure
Inventor: SCHOENHARD HEINZ DIETER
IPC: G01L19/10
Filed: 1974-02-08
Abstract: In order to show the time, the recording pen is moved along parallel to the drum axis and the drum is supported at both of its ends by axially mounted barometer capsules, one of which rotates the drum clockwise, and the other rotates it anticlockwise; the drum surface has axial sections which are alternately used for writing and are left blank. The sections which are left blank are shallow peripheral grooves. The barograph is esp. suitable for use on vehicles and ships. The positive drive mechanism for the pen is not affected by jolting and rolling and the motion has minimum effect on the cylinder.
Patent DE-2408200-A1 (DE)
Title: Remote actuator for fume ventilator covers - has actuating cylinder for releasing the spring for opening the cover
Inventor: GREFE HELMUT
IPC: E04D13/035
Filed: 1974-02-20
Abstract: The remote actuator is used for remote actuation of fume fume ventilator covers and doors or for automatic opening of roof light panels. The door is opened by the cylinder and piston mechanism and closed by the force of a spring. The lifting element of a domed roof light panel has an actuating element whose piston can be optionally loaded with pressurised medium from a network or from a different source. This piston operates in parallel with a spring. The alternative actuating gas source is a propellant charge which is ignited by an electric circuit. Actuators of individual windows are able to operate independently and the window is pushed so far into the open position that the winding is no longer able to close it.
Patent DE-2408529-A1 (DE)
Title: Ortho-benzyltoluenes prepn from o-xylyl halides and benzenes - in the presence of sulphuric acid
Inventor: EILINGSFELD HEINZ DR
IPC: C07C2/86
Filed: 1974-02-22
Abstract: o-Benzyltoluenes of formula (I): (where R1 are each indep. H or halogen; R2 are each indep. H, halogen or aliphatic or aromatic gp.) are obtained by reacting o-sylylhalides of formula (II): (where X is halogen) with benzenes of formula (III): in the presence of HiSO4, using a mol. ratio of 7 mol. (III) per mol. (II). (I) are obtained in improved yields and purity (cf JA 40754/1973) from easily available starting materials, and are easily isolated from the reaction mixture. (I) are useful as dyestuffs intermediates and as starting materials in the prepn. of anthracene and anthraquinone and their derivs.; oxidn. with HNO3 yields o-benzoylbenzoic acid and its derivs.
Patent DE-2409259-A1 (DE)
Title: Raising- and supporting frame for constructional elements - acts simultaneously as support for double guide rail
IPC: E01D15/12
Filed: 1974-02-27
Abstract: The frame consists of three struts, two metal rings, a cylindrical cap section, to support a wire rope; three prefabricated concrete foundation blocks, and a block and tackle. The three struts are held by an upper wide metal ring, having metal eyes along its lower edge. The second ring is positioned below it, within the triangle formed by the three struts. It has metal eyes along its upper edge, and is fastened by metal flanges to the struts. The rings are connected to adjustment and stabilization by wire ropes, passing through the metal eyes. Two frames form a carrying frame work, each cap section consisting of three cylindrical parts, and carrying a roller, to support a wire rope, which carries the load. When the frame acts as a support for a double guide rail, the rail is screwed to the lower ring. The lower strut ends are anchored in the concrete foundation blocks.
Patent DE-2423630-A1 (DE)
Title: Snap-action thermostat or pressure switch - has swivelling arm in counter bearing formed by angularly bent sheet metal member
Inventor: ANDRESEN JENS NICOLAI
IPC: H01H3/00
Filed: 1974-05-15
Abstract: The switch has at least one swivelling arm pivoting round a joint and at least one snap-section spring for switching over under the effect of an actuating element, such as a bellows exerting a pressure against the force of its rated value spring. The arm is loaded by a force component in the longitudinal direction, and possibly by a second force component at right angles to the arm surface. The arm has a counter bearing which is pressed by the force components against a bearing with an edge. The counter bearing is formed by an angularly bent sheet metal (8, 8', 34) whose one shank (9, 9', 35) is mounted on the arm (7, 7', 32), this counter bearing extending between the arm and bearing. Its second shank (10, 10', 36) is mounted on the other side of the edge on the bearing.
Patent DE-2424108-A1 (DE)
Title: Encapsulated FET for microwave amplifier - has short connections of gate and source connections to encapsulation terminals
Inventor: FREYER ULRICH DR RER NAT
IPC: H01L23/66
Filed: 1974-05-17
Abstract: The field effect transistor is intended for microwave amplifier, especially for the frequency range about 10 GHz. With the connection of the gate (g) and source (S) electrodes to the housing terminals as short as possible, the connection between the drain electrode (D) and the housing terminal is carried out as a high-ohmic power transformer of electric length in the order of quarter-wavelength of the mean frequency of the frequency range. The field-effect transistor is preferably arranged on a metal block (3) of good conductivity in an aperture (2) of a substrate plate (1), whose upper side carries a conductive structure (1e, 1a) and whose underside carries an earthing conductor (1m). The conductive structure forms the gate and drain electrodes terminals, while the earthing conductor forms the source electrode terminal.
Patent DE-2429440-A1 (DE)
Title: Measuring system with measurement transducer - has two controlled oscillators connected to transducer and to coupling cct respectively
Inventor: KNUDSEN OLE FRIIS
IPC: G08C19/02
Filed: 1974-06-19
Abstract: A signal transformer separates two controlled oscillators. A controller determining the signal d.c. current is controlled by a control signal derived from a comparison between two quantities proportional to the transducer input signal and to the signal d.c. components. The quantities to be compared are applied to the two oscillators, and comparison is made by a frequency comparator to which frequencies of the two oscillators are applied. The current controller e.g. the collector-emitter path of a transistor, is in series with a resistor from which the voltage corresponding to the signal d.c. current is collected. The second VCO is controlled by this voltage.
Patent DE-2438511-A1 (DE)
Title: Lock for safety disconnecting switch - has slidable latching insert and spring yokes for bolting secured to lock housing
Inventor: MERKLE PAUL
IPC: E05B29/00
Filed: 1974-08-10
Abstract: The lock is intended for a safety disconnecting switch with longitudinally shiftable locking insert and a number of spring yokes, whose free end functions as a moving bolt. The spring yokes are mounted on the lock housing. Preferably the free end of the spring yokes can move in corresponding recesses of the lock housing in transverse direction. The bolting of the locking insert is effected by the spring yoke ends entering a recess of the locking insert lateral plates. For the locking operation the horizontal step edges of the corresponding key are of sufficient length to suit the longitudinal dimensions of the lock.
Patent DE-2441794-A1 (DE)
Title: Lightweight portable height-adjustment device for mattress frames - comprises separate expandable bridge members detachably fastened by belts
Inventor: LAUTENSCHLAEGER FRANZ
IPC: A47C19/02
Filed: 1974-08-31
Abstract: The height-adjustment device which is to be used on beds to prevent bed-sores etc comprises a bridge member made from several expanding members (3) which are adapted to raise the mattress to the horizontal plane. These expanding members (3, 38) can be folded down to fit in to portable carrying case and can be held loosely together by retaining belts (4) which are then used to detachably fasten the expanding members (3) to the bed frame (2). The expanding members may be in the shape of inflatable air chambers or in the form of at least two telescopically slidable hollow sections (6, 7) which can be locked in various positions relative to each other. Each expanding member preferably comprises two U-sections, the free opposite ends of each arm being bent inwards to form sliding guides.
Patent DE-2452316-A1 (DE)
Title: Mechanical sewage sludge processing - to fertilizer preceded by homogenizing disintegration to specified mesh
Inventor: SPENNES GUENTER ING GRAD
IPC: C05F17/00
Filed: 1974-11-05
Abstract: Dewatered sewage sludge is processed mechanically into fertilizer by homogenizing and disintegration prior to the biological treatment stage by microorganisms. The disintegration produces pref. a particle size of minus 20 mm. A pasteurization stage can be combined with it. This ensures that the compost produced is free from undigested lumps. It results in a satisfactory fertilizer, suitable for strewing.
Patent DE-2458741-A1 (DE)
Title: Water soluble polymers having amino end gps. and amido side gps. - prepd. from unsatd. carboxylic amides in the presence of mercaptans
Inventor: WILHELM HANS PROF DIPL CHEM DR
IPC: C08F20/54
Filed: 1974-12-12
Abstract: Water-soluble polymers having amino end gps. and amido side gps. are prepd. by copolymsg. unsatd. carboxylic acid amides alone or together with >=80wt.% of other polymerisable cpds. with free radical initiators in the presence of mercaptans which in addn. to >=1 sulphydryl have >=1 gp. contg. a basic N-atom. Water-soluble polymers are easily prepd. and method is free from disadvantages of previous processes e.g., swellable but not satisfactorily thinnable matls.
Patent DE-2503061-A1 (DE)
Title: Lattice box pallet - has projection at ends of corner post interlocking with openings in feet of base
Inventor: SCHNEIDER JOSEF
IPC: B65D19/08
Filed: 1975-01-25
Abstract: Lattice box pallet consists of a base pallet with insertable front and rear wall and with suspended side walls. The lattice walls have at the bottom end of their corner posts a projection which interlocks with an opening in support feet of the base pallet. The bottom end of the corner post when inserted in a tubular opening of the feet has the horizontal interlocking projection positioned in longitudinal direction of the side walls and the surface of the post ends opposite the projections is tapered to enable an easy positioning. The corner post ends are made from an aluminium or other metal casting. In the ends is cast an anchor bolt which with its free end is pressed in the tubular corner post.
Patent DE-2504347-A1 (DE)
Title: Crystallisation of tetracycline hydrochloride - accelerated by subjecting to high-frequency vibrations, with purer, less toxic prod. formed
Inventor: VASSILEV HRISTO DIMITROV DIPL
IPC: C07C233/00
Filed: 1975-02-03
Abstract: Process for preparing tetracycline hydrochloride (I) comprises treating a suspension of tetracycline (II) in organic solvent with conc. HCl and irradiating the resulting soln. with high-frequency vibrations, esp. of 10,000-400,000 Hz at flux density 0.5-10.5 W/sq.cm. By this irradiation crystallisation of (I) is 10-13 times quicker, and a purer product is obtained in higher yields. (I) is deposited as small, micronised crystals (particularly suitable for ointments, syrups etc.) and not as conglomerates enclosing solvent and acid. The activity of the mother liquor is 2000-4000 units/ml lower than for a control; that of (I) is higher than for a control and is close to the theoretical. (I) is esp. useful for preparation of tetraolean, and has a reduced toxicity.
Patent DE-2505396-A1 (DE)
Title: Drill for bore holes in mines - has tool shaft driven by hydraulic motor supplied by pump of hydraulic roof support
Inventor: HOFFMANN DIETER
IPC: E21B1/36
Filed: 1975-02-08
Abstract: The drill is for producing bore holes in underground mining especially during driving roadways or advancing faces supported by hydaulic roof support. The drive of the shaft consists of a hydraulic motor supplied by pressurized fluid from a pump of the hydraulic roof support. The hydraulic motor is mounted in a housing contg. a bearing for the shaft driving the drilling tool. The inner end of the shaft inside the housing forms a swash plate which is activated to rotate the shaft by pistons pressurized by the fluid. The bores for the pistons are located in an outer part of the housing and their longitudinal axis are parallel with the longitudinal axis (109) of the shaft.
Patent DE-2508048-A1 (DE)
Title: Box type fan driven air heater - has front and rear sections with rear air intakes and push of front section and all working components mounted on support frame
Inventor: PETZ GUENTER
IPC: F24H9/02
Filed: 1975-02-25
Abstract: Air heater having a blower fan type impeller with a drive motor and a heat control grid with electrical switching and control system mounted in a single box type housing. The box type rear housing section which has a series of air intake apertures let into it and a front housing section which can be a push fit over the rear housing section, having a support entering into the rear section through the air outlet grid, onto which the heat control grid blower motor and fan impeller as well as the switching and control devices are mounted.
Patent DE-2513373-A1 (DE)
Title: Automatic labelling machine - has blocking arrangement at feed, and control unit with timer for main drive
Inventor: DULLINGER KARL
IPC: B65C9/40
Filed: 1975-03-26
Abstract: Automatic labelling machine consists of a conveyor to feed the objects to be labelled and a driven label feed unit with a gluing attachment and pressure application unit. The machine is distinguished by a blocking arrangement (20) in the path of the objects (3) in front of the gluing attachment (8). It also has a control unit (22, 23, 24) connected to the blocking arrangement and the drive motor (15), which , when activated, closes the blocking arrangement and stops the motor after the last object (3a) in the machine (1, 1a) has run through the pressure application unit (11, 12). The control unit includes an adjustable time (23) to stop the motor (15), alternatively an impulse counter.
Patent DE-2516456-A1 (DE)
Title: Drawing board slope height adjustment mechanism - has locking mechanism mounted with sliding guide
IPC: A47B27/18
Filed: 1975-04-15
Abstract: The slope and height adjustment mechanism for a drawing board has a rod (5) which is swivel mounted on the frame and slides along the board (3) or the lever which supports the latter during the height displacement, a weight compensating compression spring (10) and a manually operated locking mechanism (11) with handle which positively or non-positively engages on the rod (5) in the area of its sliding guide (9). The locking mechanism (11) can have a shaft (7) mounted horizontally on the drawing board through which the rod (5) passes to clamp the rod. Since the sliding guide lies half way up the drawing board when the latter is to be inclined or in the centre region of the swivel lever in the event of height adjustment, both these positions are readily reached by the user for easy adjustment.