baber/WOPTO huggingface dataset:
Patent DE-2023867-A1 (DE)
Title: Semi-conducting lead compound crystals precipitated - by vapour deposition
IPC: C30B25/02
Filed: 1970-05-15
Abstract: A process for producing single crystals of a semiconducting lead cpd. with layered latticed structure uses a carrier gas, the crystals being precipitated from the gas phase. The precipitation zone is pref. at a temp. below the m.pt. of the cpd. The advantages are high purity and a crystal shape requiring little further processing.
Patent DE-2127855-A1 (DE)
Title: Drying phosphate gypsum - without escape of fluorine by adding calcium oxide/hydroxide/carbonate
IPC: C01F11/04
Filed: 1971-06-04
Abstract: Contamination of the atmosphere and corrosion of the drying apparatus are prevented by adding to gypsum a minor amt. of CaO, Ca(OH)2 or CaCO3, and heating the mixture at 200-600 degrees C. The presence of a small amt. of fluorine (e.g. 0.27 wt %) improves the quality of the subsequently produced Portland cement.
Patent DE-2144876-A1 (DE)
Title: Normal alkane-1-sulphochlorides prepn - from alkyl chlorides via sodium alkane-thiosulphate, inters for dyestuffs and te
Inventor: STAFFE ADOLF DR
IPC: C07C381/02
Filed: 1971-09-08
Abstract: N-Alkane-1-sulphochlorides (I) of formula R-SO2Cl (in which R is n-4-12C alkyl) are prepd. by reacting RCl (II) with Na2S2O3 in MeOH, contg. 5-30 wt.% H2O at elevated temp. opt. under pressure, and converting the resultant Na n-4-12C -alkane thiosulphate (III) to (I) by treatment with Cl2. (I) are inters. for dyestuffs and textile finishes, e.g. perfluoro-n-octyl sulphofluoride from n-octyl sulphochloride. Excellent yields of pure prod. are attained. Under these conditions, thiosulphates can be reacted with (II) instead of the much costlier alkyl bromides.
Patent DE-2145254-A1 (DE)
Title: Finishing spinning orifice bores - by coating with titanium nitride or carbide
Inventor: REICHELT WALTER DR
IPC: C23C14/12
Filed: 1971-09-10
Abstract: Synthetic fibre melt spinning orifice plate of steel or Ti has the melt contacting face and the orifice bores finished with a coating of fine crystalline Ti nitride or carbide and the coating which is 5-50 mu thick may be followed by a further coating of 1-10 mu of PTFE.
Patent DE-2145730-A1 (DE)
Title: Paramagnetic tungsten-carbide-base composite - contg binder consisting of nickel-phosphorus alloy,molybdenum and nickel
IPC: C22C29/06
Filed: 1971-09-13
Abstract: Hard alloy produced by sintering contains 1-30% of a binder consisting of 2-30 wt. @ of a Ni-P alloy (contg. 8-14% Ni), 15-50 wt. % Mo, the balance being Ni; and 99-70% of a carbide, mainly WC opt. with addition of a carbide of Ta, Ti, Nb, V, Cr, Zr or Hf. Carbide particles can be preliminarily chemically coated with the Ni-P alloy. The usual ferromagnetic binder, esp. co, used for carbide composites, is replaced by the binder described above the paramagnetic applications, e.g. clocks or wrist watches.
Patent DE-2208757-A1 (DE)
Title: Acyloxyalkane phosphonate and phosphinate esters prepn - from acyloxyalkenes and phosphonate or phosphinate esters using high-energ
Inventor: FINKE MANFRED DR
IPC: C07F9/40
Filed: 1972-02-21
Abstract: Cpds. of formula (I): (where R1, R3 and R4 are 1 - 18C alkyl; R2 is H or 1 - 18C alkyl; x and y are 0 or 1) are prepd. by adding R1COO(CH2)xCHR2-CH2 onto a cpd. (II): at 130 - 250 degrees C (pref. 150 - 200 degrees C) under the action of high-energy radiation, pref. gamma- or X-rays or accelerated (0.5 - 4 MeV) electrons. Yields of 80 - 90% are obtd. Cpds. (I) are intermediates for plant-protection agents, ripening accelerators and flameproofing agents.
Patent DE-2308088-A1 (DE)
Title: Converting thiazolinone amino-acids - into phenylthiohydantoin amino-acids in protein and peptide sequence determination
Inventor: WITTMANN GEB LIEBOLD BRIGITTE
IPC: G01N33/68
Filed: 1973-02-19
Abstract: In automatically converting thiazolinone amino-acids into phenylthiohydantoin amino-acids in the course of the amino-acid sequence analysis of proteins or peptides, (a) with constant exclusion of O2 a soln. of the thiazolinone amino-acid in the solvent to be used for the conversion is brought into a reactor cell and evapd. to dryness at a constant temp. of 50 to 80 degrees C with simultaneous passage of an inert gas stream introduced at the lowest point of the reactor cell and above the surface of the soln., (b) mercaptan-treated aq. CF3COOH or dilute HCl is added in an amt. such that it is completely evapd. within 30-40 mins. at the given constant temp. and with introduction of the inert gas stream, (c) the residue is dissolved by spraying over with a mixt. of 1,2-dichloroethane (6-8 vol. parts) and CH3OH (4-2 vol. parts), and (d) the resulting soln. is withdrawn from the reactor cell for identification or further purification. A reactor cell for carrying out the above procedure is described. The new procedure and appts. are simple and can readily be incorporated into existing or future automatic sequence analyzers.
Patent DE-2332252-A1 (DE)
Title: Safety rapid starter for gas discharge lamps - includes bimetal switch with permanent magnet bias for repeated starting
Inventor: RASCH ERHARD
IPC: H05B41/04
Filed: 1973-06-25
Abstract: The safety, rapid electronic starter for gas discharge lamps automatically repeats starting attempts after a certain time without damaging any component by these attempts if the fault should persist. The lamp is preheated via an inductance electrode, overload fuse a thermal switch and a capacitor to the other electrode of the lamp. An electronic starter parallel to the capacitor consists of a four-layer didoe, shunted by a damping resistor, in series with a diode gate. The thermal switch has a bimetal strip which opens the contacts against the force of a permanent magnet.
Patent DE-2338674-A1 (DE)
Title: Double-acting multiple telescopic cylinder - has outer stage consisting of two concentric tubes including a hydraulic fluid channel
Inventor: DODT JUERGEN
IPC: F15B15/16
Filed: 1973-07-31
Abstract: Double acting, multiple telescopic cylinder with at least two telescopic stages which can be moved into and out of the outer cylinder and with hydraulic connections for the extension and retraction of the stages. The outer stage consists of two concentric, supporting tubes which between them include a hydraulic fluid channel made up of a segment-shaped casing reduction of the inner tube, which is adjacent to the outer tube over the greater part of its circumference.
Patent DE-2346696-A1 (DE)
Title: Mould filling device esp. for press. die-casting machines - using swinging and tilting ladle for precise dosing
Inventor: BRUEMMER HELMUT
IPC: B22D39/02
Filed: 1973-09-17
Abstract: A ladle is mounted above a bath of metal on the end of a swivel-arm which immerses the ladle in the bath and transfers it through an arc to the casting hole; an overflow on the ladle ensures that the same amt. of metal lifted out of the bath during each cycle. When the swivel-arm reaches the end of its travel to the ladle is tilted by an angle which can be altered by an adjustable stop working on a thrust pad. The ladle is shaped so that part of its vol. lies below the lowest position of the ladle-lip, i.e. the ladle need not empty completely during each cycle but is tilted by a controlled amt. and the metal remaining in the ladle is carried back to the bath of molten metal.
Patent DE-2349634-A1 (DE)
Title: Magnetic tape player for cassettes - has tape attached to spool hub and switch-off controlled by spool winder
Inventor: EMMERT REINHOLD
IPC: G11B15/093
Filed: 1973-10-03
Abstract: The means of switching off the magnetic tape player, which uses cassettes where the end of the tape is attached to a retaining point on the spool hub, operates independently of the position of the spool winder shaft. An eccentric cam connected to the latter is arranged within a switching arm in such a way that the arm is brought out of engagement with an independently driven cam. When the spool winder shaft stops rotating one or other part of the arm remain in contact with the cam, so that a tripping pin on the cam engages in a release lever. By its movement the latter then actuates an adjacent switch to shut off the instrument.
Patent DE-2351001-A1 (DE)
Title: Furnace exhaust fume filter - in which renewal of filter material need not interrupt filtration
Inventor: LACHNIT FRIEDRICH DIPL-ING
IPC: B01D46/30
Filed: 1973-10-11
Abstract: Particulate filter material e.g. coke, is held between two louvred, vertical walls through which the fumes are passed. The filter material space is partitioned into >=4 sectors of which >=2 at a time can be screened off from the gas flow for servicing or recharging while filtration continues through the remaining sectors. Conveniently, a cylindrical filter silo has an annular space for filter material divided into sixteen sectors and intermittent rotation of a sector screen about the axis of the cylinder cuts off two sectors at a time. Gas flow outwards from the silo axis gives a speed drop through the filter material which enhances filter efficiency.
Patent DE-2352292-A1 (DE)
Title: Compact drive for cine projector - has two coaxial electromagnetic clutches for forward and reverse drive
Inventor: BRUEHLHART HANS-PETER
IPC: G03B1/34
Filed: 1973-10-18
Abstract: The sprocket wheel is driven from the motor via two electro-magnetic clutches driven by a drive wheel coupled to the motor by a belt drive. One clutch operates in one direction and the other in reverse. The electro-magnetic system operates quickly to provide a rapid film acceleration. The clutches are mounted coaxially with the input and output drives of the system with one clutch coupled to the output via one gear wheel and the other via two gear wheels, to generate the reverse drive. The relative sizes of the clutches and gears are chosen so that a compact system is obtained.
Patent DE-2356414-A1 (DE)
Title: Flow divider for pressure medium from pump - has control valve with double-acting piston control ducts double valve and changeover valve
Inventor: BRENDECKE MANFRED
IPC: F15B11/22
Filed: 1973-11-12
Abstract: The flow divider for a pressure medium stream fed from a pump, to two users in parallel via two main pressure ducts has a control valve with an axially displaceable piston maintaining equal flow cross sections in both ducts in each piston position. Both piston end faces are acted on by fluid medium from the ducts. A control duct opens into the chamber that is in front of one end face of the piston, and this duct comes from the main press. medium ducts between the pump and control valve. A control duct comes from both main ducts from the control valve and opens into the chamber in front of the other end face of the piston. A pressure spring in this chamber additionally loads the end face of the piston. The piston has two waisted sections between three cylindrical sections which fit closely into the valve block. The length of these sections is such that they completely free the downstream press. ducts in each piston position, while their adjacent cylindrical sections throttle with their identical control edges facing toward the spring the identical opening cross sections of the pressure ducts to the pump.
Patent DE-2400804-A1 (DE)
Title: Cinema sound reproduction equipment - has cct. for automatic limiting of loudspeaker current
Inventor: ORTHMANN JUERGEN DIPL PHYS
IPC: H03G11/00
Filed: 1974-01-09
Abstract: Current corresponding to a loud speaker maximum volume is preset by a variable resistor connected to a control device which reduces the loudspeaker amplifier gain at least when the maximum current intensity is reached. The control device consists of a lamp with a threshold, placed in front of a photosensitive device in the amplifier input circuit. The variable resistor is in parallel with the loudspeaker coil. According to one embodiment the threshold value is adjustable by means of a variable resistor and the input of the threshold circuit is connected to the loudspeaker coil while the output is connected to a controllable transistor arranged in parallel with a manually controllable resistance. The control resistor and the threshold resistor, can with advantage, be regulated by a common grip.
Patent DE-2408319-A1 (DE)
Title: Wasteless cutting of foamed plastics laminated roofing felt - cut section supported on convex surface to prevent rotary cutter jamming
Inventor: PRIGNITZ HERBERT
IPC: B26D7/20
Filed: 1974-02-21
Abstract: Foamed plastics matls. are cut without waste of matl. by inducing internal tensile stresses in the matl. which are highest opposite the cutter. Roofing felts laminated with foamed plastics matls. are cut for butt ointing. Cut edges are square, guiding of the matl. over a convex support prevents jamming of the cutter or generation of waste matl. Foamed plastics matls. may be polyurethane or polystyrol.
Patent DE-2409372-A1 (DE)
Title: Force pick-up with determinable zero point - has switching mechanism allowing reversal of direction of force
Inventor: KAMPF HERBERT
IPC: G01G3/14
Filed: 1974-02-27
Abstract: The force pick-up has a switching mechanism which enables reversal of direction to be carried out under load and the mechanical force flux is equally divided and is allocated to two measuring elements. The directions of the force fluxes in the two elements can be reversed and, at the same time, the places of the elements may be changed. The pick-up can consist of two concentric rings, one surrounding the other, which are connected at two points on their circumference by bridges extending at a tangent. The force to be measured is transmitted from one ring to the other and the total flux passes through the two bridges designed as measuring elements.
Patent DE-2413620-A1 (DE)
Title: Wiper arm fixing clamp - is non flexible casting with deformable inner shell of resilient strip
Inventor: BRUEMMER DIETMAR
IPC: B60S1/34
Filed: 1974-03-21
Abstract: The connecting clamp is preferably of non flexible plastic or zinc casting and contains a through boring to receive the wiper shaft. A slot is provided in the boring leading to two projections bored to receive a clamping screw. Parallel to the clamp screw projections are two lugs with borings to accommodate a rivet or fixing screw for the wiper arm and its pressure spring. A clamping shell is provided to prevent the clamp from slipping on the wiper shaft. The shell is fitted inside the boring which is provided with a flange at the edge to guide the shell and prevent it from turning.
Patent DE-2416202-A1 (DE)
Title: Suspension for rigid axles - has Z-shaped torsion rod with connections to chassis-and axle at four points
Inventor: CVETNIC MILAN DIPL ING
IPC: B60G9/00
Filed: 1974-04-03
Abstract: There are two longitudinal guide rods fitted to the rigid axle and a single bow shaped tension bar lying across the chassis acting as a stabiliser. Without additional components, and with the smallest possible number of bearing points, acceptable transmission of transverse forces is achieved. The two longitudinal members and the bow shaped tension bar form a single Z-shaped suspension member. The connections to the frame and axle are at the ends and the angle points of the Z. The mounting of the angle points is by half shell support plates with through bolts, and a short extension arm with a bearing eye point at the chassis or axle end.
Patent DE-2422890-A1 (DE)
Title: Microscopic circular shape size distribution measurement - using optical appts. comparing shape with standard ring and electronically counting results
Inventor: LUEBBERT ULRICH DIPL ING
IPC: G01N15/02
Filed: 1974-05-11
Abstract: An apparatus for determining the size distribution of microscopic circular shapes, for example in textile, chemical or medical production, is presented. The particle is illuminated by a light beam which is then split and displayed on two screens, each of which has a transparent ring-shaped window. The screens are movable and are arranged so that the image falls concentrically with respect to the ring-shaped window. The rings are of different diameter, so that, if the smaller ring is totally covered by the image whilst the larger ring is not covered, the particle size is a member of the set specified by that ring pair.
Patent DE-2426015-A1 (DE)
Title: Large dia glass fibre reinforced pipeline - helically wound from prefabricated reinforced strips on internal lining
Inventor: RUDOLF ARTUR
IPC: F16L9/16
Filed: 1974-05-30
Abstract: A wound glass fibre reinforced pipe, esp. for large-diameter gas or oil pipelines, is made up from glass fibre-resin strips or bands which are prefabricated on site and would and fixed to the form of the pipe. A preferred arrangements comprises a number of successive layers would in opposite directions, the inside of the pipe having longitudinal stabilising glass fibre reinforced resin strips, esp. embedded in the internal lining. Pipe ends may have reinforcing rings which surround the winding. By winding a pipe from glass fibre-reinforced resin strips, a uniform reinforcement is obtained so that high strength props of glass fibres are utilised to best advantage. The pipe is esp. suitable for highly corrosive conditions, e.g., under sea, and withstands the high bending stresses encountered during laying.
Patent DE-2429777-A1 (DE)
Title: Vinyl chloride polymers - having low residual monomer content
Inventor: WEINLICH JUERGEN DR
IPC: C08F6/20
Filed: 1974-06-21
Abstract: A process of prodn. of homo- or copolymers contg. >=80 wt. % polymerised vinyl chloride comprises polymerise. of the monomer(s) in aqs. emulsion or suspension, removing the bulk of the unreacted monomer, according to known methods, evaporating 0.5 to 20 kg water per 100 kg dispersion at a pressure of 150 to 650 torr over a time of >=15 mins. and if necessary removing and drying the polymer. Pref. 0.5 to 5 kg of water per 100 kg dispersion is evaporated within 30 to 360 mins and at a pressure of 200-450 Torr. Polymers can be obtd. with a residual monomer content of 0.005 wt. % vinyl chloride. The process can be used for prodn. of vinyl chloride homopolymers or its copolymers with aliphatic vinyl esters, vinyl ethers, acrylic and methacrylic acid esters, butadiene, acrylonitrile and styrene.
Patent DE-2433469-A1 (DE)
Title: Homopolar machine with liquid metal current collection - uses motion induced by eddy currents to contain metal
Inventor: MASSAR ERNST DR
IPC: H01R39/30
Filed: 1974-07-09
Abstract: The application is to homopolar motors with horizontal shaft, particularly those with a reversing duty, employing a liquid metal (7) to conduct current from the rotor (2) to the stator (12). The main, central circumferential gap or channel (5) containing the metal is bounded on either side by narrower channel (6) set at an angle to the central one. Along the whole, or part, of the stationary side of the narrow channels is an iron core with a multiphase winding which when energised, induces eddy currents in the liquid-metal. The resultant forces contain the metal within the bounds of the channels so that in either rotation or at rest it cannot escape. Mechanical sealing glands are thus eliminated.
Patent DE-2436067-A1 (DE)
Title: Laminated transformer core with non-inductive clamping bolt - has gap in core region surrounding its bore for clamping bolt
Inventor: WAASNER BRUNO
IPC: H01F27/34
Filed: 1974-07-26
Abstract: The laminated transformer core has a device to limit induced current in an electrically conducting clamping bolt. A bore passes through the laminated core and is arranged to lie at the point in the core where the magnetic flux flows in one direction only. The part of the laminated core (6) around the bore (3) has a gap (7) along one side of the bore. The gap width is preferably equal to or greater than a quarter of the diameter of the bore. The part of the laminated core around the bore may be located in the corner of the core and may open at the core outside.
Patent DE-2437860-A1 (DE)
Title: Mounting arrgmt. for circular cutters - has disc hubs carrying individual blades compressed together on shaft
Inventor: GULDE ARNO
IPC: B26D7/26
Filed: 1974-08-06
Abstract: When a strip is to be cut into a set of narrower strips, a number of circular cutters are used, mounted on a shaft at distances which correspond with the width of the narrower strips. Use is made of a set of hubs which can be mounted on a shaft. The thickness of the hubs correspond with the width of the strips to be cut. Each hub consists of a disc with a stepped outside dia. The cutting disc is mounted with its bore over the smaller dia., while a conical spring washer or spring disc is mounted between the cutter and the step on the hub, so that each cutter is pressed against the next disc.
Patent DE-2438175-A1 (DE)
Title: Pouch shaping filling and sealing machines - has filling funnel with oval section tapering spout
Inventor: WALTER KURT
IPC: B65B39/02
Filed: 1974-08-08
Abstract: The machine shapes, fills and seals pouches, having a filler pipe with shaping shoulder continuously feeding and shaping strip material into pouches which are then filled via the pipe and sealed by tools underneath. The pipe is in the form of a funnel (1) with a slim oval outlet tapering towards the tip. Two separate strips (3, 4) of sheet material are fed in to form the pouch, on opposite sides of the oval funnel spout flanks. The upper shoulder edge is curved so that the curve ends adjacent to the funnel spout end edges lie deeper than the highest point of the curve. In the filling direction the funnel spout edges diverge, and the lengthwise sealing tools are likewise inclined.
Patent DE-2440686-A1 (DE)
Title: Metal profiled section manipulator - has magnets in housing tilting on trunnions on spreader suspended from crane
Inventor: SCHWARZ WILHELM DR ING
IPC: B66C1/04
Filed: 1974-08-24
Abstract: The manipulator is for handling sheet-metal and rolled profiled sections, the load being transported by a crane and lifted and lowered by magnets. A spreader (2) is suspended by ropes (1) from the crane, and a housing (3) pivots on it by means of trunnions (4). This accommodates lifting magnets inside it, and it is tilted by a drive mechanism. The trunnion centres coincide with the centre of gravity of the housing including the magnets and half the payload. Tilting can be by an electric motor (5) with reduction gear (6) and spring brake. There can be a number of housings on the spreader, the torque from the motor being transmitted via the trunnions.
Patent DE-2443859-A1 (DE)
Title: Shoe tree-stretcher with inflatable air cushion - cushion provided with valve around which reinforcement at open part of shoe is provided
Inventor: BRAB HUBERT
IPC: A43D3/04
Filed: 1974-09-13
Abstract: Shoe tree/stretcher comprises an air cushion (1) of elastic material which is closed on all sides and which is approx. equal in length to the length of the shoe. The cushion is introduced into the shoe in the deflated state, then inflated via an air valve (3) disposed on the inside or outside at one end of the cushion. Pref. the air cushion has a shape corresponding to that of the shoe, and on the valve side of the cushion is a reinforcement (2) to prevent inflation of the cushion at the open parts of the shoe. The reinforcement may be loosely inverted, or rigidly connected to the cushion over the air valve, and may be closed at one end.