baber/WOPTO huggingface dataset:
Patent DE-2639624-A1 (DE)
Title: Hydrogen and oxygen mfr. from water - in cyclic process using iron cpds. and steam from a nuclear power station
Inventor: FRIE WOLFGANG DR
IPC: C01B7/03
Filed: 1976-09-02
Abstract: Hydrogen and oxygen are made from water, esp. using heat from nuclear power stations. Water and FeCl2 are reacted at high temp. to obtain Fe3O4, HCl, and H2 which is removed. The mixt. of Fe3O4 and HCl is treated with Fe2O3 and SO2 at 350-500 degrees K, and 1-15 bars, to form FeCl2 and water, which are recycled to step, and FeSO4. The FeSO4 is decomposed at >1000 degrees K, and atmos. press., to obtain Fe2O3 and SO3, which are recycled and O2 which is removed. The solid FeCl2/FeSO4 can be treated in a separator using inert gas, where FeCl3, Cl2, SO2 and SO3 are heated to 950 degrees K and compressed at 15.5 bars, to obtain liq. FeCl2 which is recycled and FeSO4.
Patent DE-2647005-A1 (DE)
Title: Tin recovery from lacquered tinned iron sheet scrap - by heating and leaching with sodium hydroxide and oxidising agent
Inventor: STOJANOV IVAN JELJASKOV DIPL I
IPC: C22B25/06
Filed: 1976-10-18
Abstract: Tin is recovered by heating the scrap at 230-300 C for 10-30 min. then leaching for 30-60 min. in a soln. contg. 150-250 g/l. of NaOH and 20-50 g/l of an oxidising agent (pref. NaNO3) at 100-105 degrees C, treating the resulting sodium stannate soln. with CO2 to precipitate stannic acid, sepg. the latter and dissolving in hot conc. HCl soln. diluting the resulting SnCl4 soln. and contacting it with a metal more electropositive than tin, such as Al (pref.) Zn, Mg or Fe. The degree of tin recovery is considerably increased compared with the known process (by 30-40% in the case of one-side lacquered sheets, and by 90% in the case of two-side lacquered sheets). Cheap chemicals are used. NaOH is regenerated by treating Na2CO3 with lime milk.
Patent DE-2650345-A1 (DE)
Title: Post:casing water leak detection - for prodn. wells by fast neutron radiation and gamma ray detection
Inventor: PAAP HANS JUERGEN
IPC: E21B47/10
Filed: 1976-11-03
Abstract: Undesirable water which may be present behind the casing of a prodn. well can be detected by lowering into the well a fast neutron source which produces the nuclear reaction O16 (n,p)N16. Two detectors at a certain distance from each other and from the source measure the gamma radiation, generated by the decay of the unstable isotope N16. Their output signals produce the information about the rate of flow of oxygen nuclei and of water. This furnishes more accurate results than acoustic methods which do not detect micro annuli between the casing and the cement ring. A clear discrimination between water flow inside and outside the casing is possible.
Patent DE-2655649-A1 (DE)
Title: Rotary IC engine with perpendicular positioned rotors - has compression cylinders inside rotors and timing gears between them
Inventor: MCCALL WILLIAM B
IPC: F01C3/02
Filed: 1976-12-08
Abstract: The engine has two identical rotors (22, 24) attached to shafts (26, 28) perpendicular to each other. Each rotor has two projecting blades (96, 98, 104, 106) which leave recesses (110, 112, 105, 107) between them on the periphery of the rotor. As the rotors turn the blades of one pass through the recesses of the other to form variable volume working chambers with the inside of the casing. The two shafts (26, 28) are connected by a train of bevel and spur gears which keep their movements in time with each other. The rotors are hollow and have vanes forming air compressors inside them. The inlet (94, 102) to each compressor is concentric round the shaft (26, 28) and the discharge (100, 108) is through the circumferential walls of the projecting blades (96, 98, 104, 106). This provides effective cooling of the rotors.
Patent DE-2658441-A1 (DE)
Title: Open=end spinning assembly maintenance - has a cleaning and/or control function for the mobile maintenance unit so that it is periodically cleaned
Inventor: STAHLECKER FRITZ
IPC: D01H13/00
Filed: 1976-12-23
Abstract: For the maintenance of an assembly of open-end spinning units, >=1 mobile unit is provided to move along the line for cleaning and yarn repair. Cleaning and/or control facilities are provided for the mobile unit. As the mobile maintenance unit is, itself, controlled and cleaned, so therefore is the cleaning and maintenance of the open-end spinning unit assured, without the risk of failure because of fouled maintenance equipment.
Patent DE-2700706-A1 (DE)
Title: Weather-resistant beach chair locker - has swivel back rest folding down over seat for form storage locker
Inventor: MAISENHAELDER SIEGFRIED
IPC: A47C1/14
Filed: 1977-01-10
Abstract: The locker deck chair for beaches, swimming pools etc. comprises a swivel back rest (5) and a swivel flap (7a) which can be folded down over the arm rests (4) which are closed at the sides to fit into the locking slot (8) so as to form a lock-up storage space inside the seat shells (3, 3a). The chair is supported by a tubular frame (1) which is connected to the seat shell (3) by a rotary joint (2). The back rest (5, 5a) is pref. designed so that when folding it down it overlaps the arm rests at the side so as to form a watertight unit preventing rain etc. from seeping in. A bolt can be fitted to the back rest to fit into the locking slot when the unit is closed.
Patent DE-2705234-A1 (DE)
Title: Cornea replacement eye prosthesis - has ring of holes around periphery and coating of vitreous carbon
Inventor: HENNIG GERHARD DR ING
IPC: A61F2/14
Filed: 1977-02-08
Abstract: The eye prosthesis is a curved disc (10) to replace the corner with a ring (12) of finely porous carbon around the periphery. This is intended to ensure attachment of the disc to the eye. It can form part of the iris of the eye. The outer edge can also include a ring of holes (14) to assist attachment. The carbon layer may be vitreous carbon.
Patent DE-2706618-A1 (DE)
Title: Portable distress signalling device - has spring biased hammer actuating eccentric bolt with limitation provided by annular stop (OE 15.7.77)
Inventor: CECH THEODOR
IPC: G08B7/08
Filed: 1977-02-16
Abstract: The portable distress signalling device for providing an acoustic or optical distress signal comprises a signal capsule with a cylindrical body (1), sealed at its upper end by a closure cap. The capsule contains an axially movable hammer (5) acted on by a spiral spring (15) secured to the cap, to operate a bolt (12), eccentric to the longitudinal axis of the capsule. The movement of the hammer (5) is limited by an annular stop (2) inside the capsule and the hammer (5) has a central bore (8) on the side facing the spiral spring (15), into which a pin (16) at one side of a transmission element (14) can fit. The element (9) receiving the eccentric bolt (12) is acted against by the transmission element (14) and has two finger grips (23).
Patent DE-2707711-A1 (DE)
Title: Azo dispersion dyes - giving fast marine blue colours on polyester fibres
Inventor: HANSEN GUENTER DIPL CHEM DR
IPC: C09B29/08
Filed: 1977-02-23
Abstract: Dispersion dyes of formula (I) are claimed (in which X is is Cl or Br; R1 is (m)ethyl and R2 is H, (m)ethyl or chloromethyl gp.). (I) are prepd by coupling diazotised (II) with a coupling agent (III). (I) give marine blue dyeings on linear polyester fabrics with excellent colour strength. Compared with prior art dyes, (I) have improved light fastness, and resistance to thermal fixing, moisture and reducing agents.
Patent DE-2712912-A1 (DE)
Title: Wet polishing aluminium or steel strip or wire - in row of tanks contg. alumina suspended in etching or soap solns.
Inventor: HELLING WERNER DR ING
IPC: B05D3/12
Filed: 1977-03-24
Abstract: The parent Patent 1796059 describes the surface smoothing of aluminium and/or steel. Claim 5 of an earlier addn. viz. Dt 2355576, proposed the wet polishing of Al-clad steel by drawing the steel through a vibrating tank contg. a polishing liq. The novelty in the present invention is the continuous mechanical surface smoothing of strip, rod or wire made of unclad al or steel by wet polishing, where the workpieces are drawn through vibrating tanks contg. polishing liqs. Liqs. pref. consists of alumina with a soln. which slightly attacks the workpieces; and the tank used for the last polishing stage pref. contains a soln. in which there is no solids. The wet polishing can be used for the pretreatment of workpieces which are not immediately lacquered but may be chemically- or anodically-oxidised with or without subsequent lacquering.
Patent DE-2715366-A1 (DE)
Title: Rotating electrical machine with changeover switch - is designed for operating as variable speed motor or variable frequency generator
Inventor: HIENZ GEORG DIPL ING
IPC: F02B3/06
Filed: 1977-04-06
Abstract: The rotating machine has a changeover switch (10) which is used to switch the stator phase windings. While it switches the phase windings it maintains frequency and/or amplitude constant can vary them in a specified way. The changeover switch changes the machine over from operating as a generator with variable frequency and voltage by essentially constant speed to operating as a motor with variable speed but supplied at constant amplitude and frequency. The changeover unit is mounted on the stator of the rotating electrical machine.
Patent DE-2726374-A1 (DE)
Title: Wire cable loop mfr. - by stressing the outer strands against the core with its ends butted together
Inventor: SCHEFFLER GUENTER DIPL ING
IPC: B29D30/48
Filed: 1977-06-10
Abstract: In the mfr. of a closed wire cable loop, one end is wound as the core and wound twice in the wire cable. The other end is overlaid within the wire cable and the cores butt together after several windings. The closed loop will not pull apart at the splice.
Patent DE-2727328-A1 (DE)
Title: Rotating hydraulic unit injection moulded from plastics - eliminates fitting operations on assembly, needs no lubrication
Inventor: HALLER PETER H
IPC: F01C21/08
Filed: 1977-06-16
Abstract: The separate details of a hydraulic unit such as a motor, a pump or a compressor for fluids, of the vane or the rotary plunger type, are injection moulded in acetal polymers, polyvinylidene fluoride or polyether sulphones. These details include the stator housing, the rotor with its journals, the plungers or vanes and the running surfaces. The hydraulic units can be operated with water or glycol solutions since they do not depend upon oil for lubrication. They are proof against atmospheric and chemical corrosion and run much more quietly than metal devices. The difficulties of producing a trochoidal or conchoidal running surface in metal housings are eliminated. The units find application as replacements for a range of small electrical servo mechanisms such as window and seat motors.
Patent DE-2727373-A1 (DE)
Title: Screw extrusion and mixing appts. - having cooperating grooved barrel and screw, for extrusion of thermoplastic or thermosetting materials
Inventor: GEYER PAUL
IPC: B29C48/395
Filed: 1977-06-14
Abstract: Extrusion and mixing appts. comprises a barrel with inlet and outlet ends and a rotating screw reciprocably located within the barrel. The internal surface of the barrel is grooved as is the surface of the screw. In a first section nearest the inlet end of the barrel the depth of the grooves in the barrel gradually increases whilst that of the grooves in the screw gradually decreases. In this way an increasing proportion of the working material is forced into the barrel grooves. In a second section the barrel grooves are abruptly decreased and that of the screw increased to cause the material to abruptly flow from the barrel to the screw grooves. The length of the second section is considerably shorter than the first. Homogeneous blending is obtd.
Patent DE-2729778-A1 (DE)
Title: Resilient sound insulated floor elastomer centre layer - has pattern of depressions on surfaces covered by chipboard panels
Inventor: SCHROETER MANFRED
IPC: E04F15/10
Filed: 1977-07-01
Abstract: The floor covering is made up from a centre layer of elastomer material and two outside layer units assembled from chipboard panels, adhesively connected to this. The elastomer layer comprises pieces such as those from old rubber tyres cohesively united in a compacted state. The surfaces of the centre layer (3) covered by the chip-board panels (1, 2) incorporate depressions (13) formed into them in a regular pattern. The elevations (23) adhesively fitting against the chipboard panels can be in the form of closed form units, shaped as knobs or cylindrical or conical stumps or, with no mutual linking. They may be mutually offset on the two sides of the centre layer.
Patent DE-2740101-A1 (DE)
Title: Borehole excavator jaw connection system - includes short inner levers below long side levers attached to yoke above
Inventor: CASAGRANDE BRUNO
IPC: E21B11/04
Filed: 1977-09-06
Abstract: The grab or excavating device for operating in confined spacers has jaws (2, 2') with pairs of arms (15) attached to their inside faces, swinging about hinge pins (3, 3') offset from the centre line of the housing. The arms on one jaw overlap the arms on the other jaw. On the top of each jaw is a further hinge pin (9) also connected to a longer arm (10) along the outside of the housing, attached to a yoke (12) higher up. The whole can be operated by a block and pulley system (22, 23, 30) inside the housing, operated from above. Each jaw has an inner face (7, 7') which slopes upwards from its pointed lower tip (6) to about the level of the lower hinge pins (3, 3').
Patent DE-2741726-A1 (DE)
Title: Sealing ring for cut-off installation spindle - has blunt angled roof-like formation on side facing spindle hole wall, with O=ring in groove on other side
Inventor: FERCH ALOIS
IPC: F16K41/06
Filed: 1977-09-16
Abstract: The spindle seal for cut-off mechanisms, such as fittings handling fluid or gas, is used where the spindle is located movably a fitting upper part, and has a seal in its hole. This seal is thermoplastic material with good sliding properties, based pref. on PTFE and has its foot port located in a hole wall groove. The sealing ring has a blunt angled roof shape on its side facing the hole wall. Opposite to the thus formed circular edge on the other side of the ring is a circular open groove in which an elastomer O-ring is fitted.
Patent DE-2741823-A1 (DE)
Title: Channel monitor for PCM TDM signals with check bits - compares transmitted parity count with parity count at receiver
Inventor: MURAKAMI MASATOSHI
IPC: H04B17/00
Filed: 1977-09-16
Abstract: The channel monitor, for PCM TDM signals with parity or check bits, has a device to count the binary code for the code number corresponding to the time slot interval as regards parity whilst the subsequent binary code for the same code number corresponding to the same time slot interval is not counted in terms of parity. The receiver contains a device to perform a similar counting process on the received signal. A comparator compares the receive device's output with the transmitted output of the transmit device.
Patent DE-2746349-A1 (DE)
Title: Controllable blade drive for tunnel construction - has blades interlocked by flanges to aid negotiation of small radii of curvature
Inventor: WALBROEHL HEINZ-THEO DIPL ING
IPC: E21D9/06
Filed: 1977-10-14
Abstract: Each individual blade comprises two identical parts or an axially symmetrical part each of which has at least along a longitudinal side a trough-shaped flange. These flanges interlock with one another when the blades are assembled in the blade drive. The limbs of each U-shaped trough diverge from one another and are connected by a flat base running parallel to the blade plate plane. The outer U-limb is shorter than its neighbour and lies at an angle of 105 deg. to the flat base. The other U-limb forms an angle of 135 deg. with the flat base or blade plate plane.
Patent DE-2747538-A1 (DE)
Title: Measurement of heavier-than-air gas contents - using counterbalanced immersed float observed through transparent container window
Inventor: HOECKELE MAX
IPC: G01F23/32
Filed: 1977-10-22
Abstract: A gas level meter for containers or systems of containers is designed for use with systems not having press. higher than atmospheric and having gas contents heavier than air, in partic. for SF6 switches. It is designed to enable the container gas level to be simply determined. A float (6) immersed in the gas is counter balanced by a compensating balance wt. (7) and force transfer system (3, 4). The float level indicates the gas content and is observed via a display panel (10). The float and balance wt. are of very different volumes.
Patent DE-2747689-A1 (DE)
Title: Forming light-absorbing surface on aluminium - by oxidising and dyeing in potassium permanganate bath (OE 15.6.78)
Inventor: MEISSNER HERBERT DIPL ING DR
IPC: C23C22/84
Filed: 1977-10-25
Abstract: An Al substrate is provided with a dark surface having a high absorption/omission ratio for luminous energy by (a) immersing in an oxidising bath to form a is not >2.5 mu thick oxide coating, (b) rinsing and (c) immersing in a aq. acidic soln. of 1-200 g/l potassium permanganate and 1-100 g/l nitrate of co or Cu at pH 0.5-5 and 90-100 degrees C. The process is used esp. to produce light-absorbing surfaces for solar energy collectors. Absorption coeffts. of >=0.8 and absorption/emission ratios of >3 are obtd.
Patent DE-2754027-A1 (DE)
Title: Determination of blood heparin concn. - by rapid, sensitive and accurate method using heparin as anticoagulant
Inventor: INNERFIELD IRVING DR MED
IPC: G01N33/86
Filed: 1977-12-05
Abstract: Blood heparin concns. in heparinised patients are determined by adding serum from the blood to standardised thrombin soln. and incubating the mixt. at a selected temp. for a defined period (too short for reaction between thrombin and any fibrin degradation prod. but sufficient for reaction between thrombin and heparin). A standard portion of the mixture is then added to normal plasma that has been equilibrated at the same selected temp. The clotting time of the resulting mixture is observed; it is an inverse function of the amt. of thrombin left after reaction with heparin and is a direct function of blood heparin. The clotting time is compared with standard curves prepd. by using serum from healthy individuals to whch standard amts. of heparin had been added. Rapid, sensitive and reliable method for determining heparin in blood to give accurate monitoring when heparin is used as an anticoagulant. The relationship between heparin content and the concn. of antithrombin III can be drawn.
Patent DE-2804481-A1 (DE)
Title: Control circuit with bidirectional thyristor arrangement - controlling reactive power of capacitor connected to AC mains
Inventor: KNUTH DETLEF DIPL ING
IPC: H02J3/18
Filed: 1978-01-31
Abstract: The control circuit controls the reactive power of a capacitor (1) in an a.c. network (8) at the fundamental frequency. In the case of an a.c. network containing reactance, the circuit comprises the series combination of two bidirectional sets of thyristor and a parallel storage capacitor. In the case of an a.c. network containing no or little reactance, the circuit comprises the series combination of the capacitor (1) and a bidirectional pair of thyristors.
Patent DE-2810103-A1 (DE)
Title: Optical fibre bundle consolidation connector - includes hollow ferrule with inner flat surfaces to miminise compression hoop effects on outer fibres
Inventor: MCCARTNEY RONALD LEE
IPC: G02B6/40
Filed: 1978-03-09
Abstract: The fibre optic cable for use in a fibre optic connector has a ferrule compressed around the end of the fibre bundle. The bore in the ferrule has a cylindrical wall with circumferentially spaced flat surfaces which minimise the compression hoop effects on the peripheral fibres of the bundle, thereby maximising fibre bundle consolidation. The ferrule pref. has a cylindrical outer surface so that no keying of abutting fibre optic cables is required. This minimises optical losses due to concentricity deviations in the ferrules and rotational misalignments between them.
Patent DE-2810854-A1 (DE)
Title: Reverse development of inductively chargeable toner image - using high absolute charge to attract toner particles to image background
Inventor: HARADA HIDEKI
IPC: G03G13/06
Filed: 1978-03-13
Abstract: A method of developing an electrostatic image on a support operates by applying inductively charged toner particles onto the support to produce "reverse development". The image on the support is composed of first regions possessing a relatively higher electrostatic charge and second regions possessing a relatively lower electrostatic charge, i.e., representing the background of the image. The support is conveyed on an electrically conducting backing sheet and a "brush" of toner particles is formed on an electrically conducting surfaces; a voltage difference is applied across the conducting surface and conducting backing sheet with the same polarity as the first charged regions, in order to maintain the polarity of the charge of toner particles the same as the polarity of the charge in these first charge regions; this causes the toner particles to adhere to the second, less charged regions. Pref. the applied voltage difference is not less than that between the first charged regions and the backing sheet. The method is used to produce a reverse development process utilising an inductively chargeable magnetic toner.
Patent DE-2810910-A1 (DE)
Title: Chain for cutting pipes - has discs alternating with rollers at link joints, with rollers limiting disc penetration
Inventor: KLINGLER KARL
IPC: B23D21/08
Filed: 1978-03-14
Abstract: The chain for use in the manual cutting of pipes includes intermediate rollers (4') which limit the depth of the cut. The chain has disc cutters (4, 5) and rollers (4') at alternative link (1) joints and includes a handle (8) with a screw-jack mechanism for tensioning the chain. The disc cutters and the rollers rotate about the pins (2, 2') which also provide for articulation between chain links. The chain has one end permanently fixed to the handle, and the handle includes a mobile anchorage (10) which locates the free end (9) of the chain.
Patent DE-2811099-A1 (DE)
Title: Voltage controller and reactive power compensator - has extra capacitor in distribution line between grounded capacitor and grounded inductor
Inventor: LIBKIND MARK SAMUILOVITSCH
IPC: H02J3/16
Filed: 1978-03-14
Abstract: The voltage controller and reactive power compensator, for power networks, has a capacitor battery and a controllable inductor in parallel with the power network's distribution line. An additional capacitor battery (6) is located in the distribution line (3) in series between the first capacitor battery (4) and the controllable inductor (5). The advantage lies in the controller/compensator regulating the voltage and reactive power smoothly without needing capacitors of large rated power. The controller/compensator is effective over a wide range of loads with various power factors.
Patent DE-2813602-A1 (DE)
Inventor: SCHMITZ GERHARD
IPC: D03J1/00
Filed: 1978-03-30
Abstract: The weaving machine provided with a warp beam (2) possesses a device (1) for climbing onto the side (20) of the warp beam, which device is arranged on the weaving machine so that it can be supported and displaced along the side (20) of the warp beam parallel to the warp-beam axis (14). The weaving machine preferably possesses a rod (6) which extends parallel to the warp-beam axis (14) and against which the climbing device (1) can be leaned and on which it is arranged displaceably. The upper part (17) of the climbing device (1) is preferably inclined over and above the warp beam (2) and possesses a supporting surface for the attendant. The attendant can thereby easily carry out repairs on the weaving machine or on broken warp threads even in respect of warp beams of especially large diameters, for example 800 to 1,000 mm and more. <IMAGE>