baber/WOPTO huggingface dataset:
Patent GB-1156017-A (GB)
Title: Improvements in or relating to Control Systems.
Inventor: BENNETT JOHN RICHARDSON
IPC: F04D27/02
Filed: 1965-12-08
Abstract: 1,156,017. Controlling aircraft; aircraft warning indicators. TEDDINGTON AIRCRAFT CONTROLS Ltd. 8 Dec., 1966 [8 Dec., 1965], No. 52034/65. Headings B7G and B7W. [Also in Divisions F2 and G3] A butterfly valve 1 controlling the supply of air from the engine compressor of a VTOL aircraft to stabilizer nozzles is actuated in response to movement of the main thrust nozzle. As shown, the valve 1 is positioned by a doubleacting piston 6 via link 5 and crank 4. The piston chambers 8, 9 are supplied from the duct 2 upstream of valve 1 via filter 18, solenoidoperated valve 20 and lines 11, 12, permanent bleeds 13, 14 being provided for each chamber. Valve 20 includes an armature disc 28 and coils 31-34 arranged in pairs one within another on opposite sides of the armature. Inner coils 32, 34 are connected via switches 46, 47 to terminals 44, 45 of switch 41. The latter is controlled by cam 42 in response to movement of the main thrust nozzle. As shown, the latter would be positioned for normal flight so that switches 41, 47 connect the supply to light lamp 52 to indicate that valve 1 is closed. Air supplied to chamber 8 via port 25 of valve 20 maintains valve 1 closed. When the main nozzle is rotated through 5 to 15 degrees, switch 41 connects the supply to coil 32 via switch 46 and the armature moves to connect the air supply to chamber 9 to open the valve 1. Rotation of spindle 3 causes cam 48 to operate switch 46 to light lamp 51 to indicate valve 1 is open. At the same time, switch 47 connects coil 34 to terminal 45 in preparation for the reverse sequence, i.e. return of the main nozzle to the horizontal. A switch 49 operated by cam 48 lights lamp 50 during movement of valve 1 from one position to another, such movement occurring within an arc of 96 degrees. If the inner coils should fail, a manual switch 53 is used to energize outer coils 31, 33 via switches 55, 56 operated by cam 54 driven by valve 1. The sequence of operations is identical to that described above except that switch 53 is operative instead of switch 41. A pressure switch 19 prevents operation of the valve 20 when the engine speed is below a certain value. In an alternative embodiment (Fig. 2, not shown), the coils and lamps are connected to a negative line instead of being earthed, and switch (19) is connected between the voltage source and switch (53). The coils and lamps are also connected to switch (53) through a rectifier (60). Failure of switch (19) is compensated by operating switch (62). In Fig. 3 (not shown), two pressure switches (71, 72) replace switch 19. Double wound coils may replace the separate coils of each pair and a spring may bias armature 28 to a position causing opening or closure of valve 1.
Patent GB-1494487-A (GB)
Title: Sludge treatment
IPC: C02F11/13
Filed: 1974-12-03
Abstract: 1494487 Drying sludge HOECHST AG 3 Dec 1974 [4 Dec 1973] 52316/74 Heading F4G [Also in Division B1] A method for drying sludge comprises bringing superheated steam into direct contact with the sludge and preferably a portion of the steam which corresponds to the amount of water evaporated from the sludge in the drying process is drawn off and condensed whilst the remainder is recycled back to the drier. As shown in Fig. 1 sludge is introduced into a drier 1, and steam is passed thereto from a heater 3. The steam passing from the drier is split into two streams and the aforesaid portion passes into a condenser 8. In the apparatus of Fig. 2 the sludge is pre-heated in a heat exchanger 13 which is heated by fluid from the steam condenser in the form of a waste heat boiler 21. A paddle mixer 14 then mixes moist sludge with dried sludge from a cyclone separator 17 in a ratio of 1 : 1 and the mixture passes to a grinding drying device 15 and a series connected conveying drier 16 through which steam from a generator 3 is passed. Dried material in the cyclone 17 which is not fed into the moist sludge travels through a bucket wheel 19 into a storage container. In a further embodiment the steam and sludge are fed together into a spray drier (Fig. 3, not shown). Incompletely burned gases formed in the drying process are led from the first condenser to the steam generator to be burnt therein. Various temperatures and pressures of the superheated steam are specified.
Patent GB-1212479-A (GB)
Title: A process for the production of dialkenyl-substituted tetrahydropyrans
IPC: C11B9/00
Filed: 1969-10-27
Abstract: 1,212,479. Dialkenyl - tetrahydropyrans. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 Oct., 1969 [28 Oct., 1968], No. 52434/69. Heading C2C. [Also in Division A5] Dialkenyl - substituted tetrahydropyrans or a mixture of isomeric dialkenyl - substituted tetrahydropyrans are obtained by reacting two mols of a conjugated diolefin with one mol of formaldehyde in the presence of one or more complexes comprising zero-valent palladium and one or more tertiary phosphines. Examples are given for the production of the compounds.
Patent GB-1491580-A (GB)
Title: Process for separating and recovering solids from dispersions
IPC: B04B13/00
Filed: 1975-12-31
Abstract: 1491580 Centrifugal separation of solids from liquid METALLGESELLSCHAFT AG 31 Dec 1975 [4 Feb 1975] 53335/75 Heading B2P In a process for separating solids and a liquid from a dispersion in which the solids are dispersed in a mixture of liquid hydrocarbons, a solids-enriched sludge phase and a liquid hydrocarbon phase with a low solids content are separated from the dispersion and a liquid, which has a higher density than the hydrocarbons and is immiscible therewith, is added to the sludge phase, and the resulting mixture is centrifuged to separate the solids from the liquid constituents of the mixture, the latter being then separated into the added liquid and a mixture of said hydrocarbons. As shown, in a process of removing dust from tar produced by pressure-gasification of coal, heavy tar containing coal dust is clarified at elevated temperature in a solid bowlconveyor centrifuge 2 and in a separator 3. Clear tar is withdrawn through a line 4 and dust-containing sludge is fed via a line 5 to a mixer 7 where it is diluted with a tar oil cut supplied through a line 6. The resulting stream is mixed in a line 9 with water (to which surfactants may be added) supplied through a line 10 and the mixture is fed to a solid bowl-conveyor centrifuge 8 from which water-wet dust is discharged via a line 11, dried in a dryer 12 and recovered as coal powder through a line 13. Liquid discharged from centrifuge 8 is fed via a line 14 to a separating tank or vessel to be separated into water which is fed through a line 16, and oil-diluted tar which is fed via a line 17, to a flasher 18 to produce the tar oil cut supplied through line 6 and a residue which is united via a line 19 with the clear tar. The water through line 16 is fed, with condensate in a line 20 from dryer 12, via a line 21 to a clarifier and thence to line 10 together with purified gas water produced during gasification. The process may also be adapted for recovering catalyst from residual oil or from the primary product of bitumen hydrogenation carried out in a fluidised catalyst bed.
Patent GB-1214398-A (GB)
Title: Dynamic image converter system
IPC: H01J29/50
Filed: 1968-11-12
Abstract: 1,214,398. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 Nov., 1968 [15 Nov., 1967], No. 53495/68. Heading H1D. [Also in Division H4] A dynamic image converter system includes a cathode-ray tube which has an electron beam source for producing a number of electron beams lying in one plane and directing the beams towards a screen to form a straight line of impact areas thereon, the source comprising a common cathode 1, an independent control grid 2 for each beam and a common anode 4. The control grids 2 have apertures 9 arranged in a straight line and the anode 4 is provided with correspondingly aligned apertures. The control grids and anode may be formed as a single mechanical unit by electronically etching a metal layer provided on opposing major surfaces of an electrically insulating plate 3, e.g. of mica. The system includes a row of radiation detectors which are used to scan an incident field, the output from each detector being connected to a respective grid and the series of beams are projected in a corresponding straight line on to the luminescent screen of the tube and scanned thereacross in synchronism with the detectors. The number of detectors and grids each being equal to the number of picture lines in the final display, e.g. 40.
Patent GB-1452298-A (GB)
IPC: H04N3/08
Filed: 1973-11-22
Abstract: 1452298 Copy by scanning XEROX CORP 22 Nov 1973 [27 Nov 1972 (2)] 54234/73 Heading H4F A light beam generated by a light source 1, which may be a laser, and modulated by a video signal at 4 is scanned across a recording medium 25 by a rotating polygon scanner 16, a cylindrical lens 23 being included to provide compensation for errors, due to the axis of scanner 16 not being at right angles to the incident modulated light beam or to misalignment of the facets of scanner 16, which would produce a line scan on medium 25 not at right angles to the direction of motion of medium 25. Cylindrical lens 23 may be bi-convex, planoconvex, or meniscus. Lens 18 may be placed between scanner 16 and cylindrical lens 23 (Fig. 1, not shown). To provide synchronization signals a detector 48 is provided to produce a pulse at the start of each line scan, a timing element being provided to produce, in response to each start pulse, a pulse indicating the end of the line scan.
Patent GB-1275265-A (GB)
Title: Ram-air turbines
Inventor: CHILMAN JOHN ALFRED
IPC: F03D9/00
Filed: 1968-11-15
Abstract: 1275265 Fluid-pressure servomotor systems DOWTY ROTOL Ltd 5 Nov 1969 [15 Nov 1968] 54286/68 Heading G3P [Also in Division F1] A ram air turbine having rotor blades 12 the pitch of which can be varied by a hydraulic actuator 16 controlled by a rotor speed responsive governor 26 includes means for venting all the hydraulic chambers of the actuator to low-pressure below a predetermined rotor speed. Thus as the rotor slows down or stops the blades 12 can be automatically or manually moved to a coarse pitch position ready for the next restart. The governor 26 comprises flyweights 27 which control the axial position of a landed spool valve 28 loaded by a speeder spring 30. Should for example, the rotor speed rise above its set value, flyweights 27 move spool 28 to the left from its equilibrium position shown in Fig. 1 thus allowing liquid from pump 46 and pipe 51 to flow through port 36 to port 39 and thence through pipe 41 to chambers 21, 23, 25 of the vane type actuator 16. The shaft 18 and casing 19 of the actuator are thus urged to rotate in opposite directions driving bevel gears 15, 14, respectively, meshing with bevel gears 13 on the blade roots to move the blades 12 into a coarser pitch position and hence reduce the rotor speed to its set value. At the same time the remaining chambers 20, 22, 24 of actuator 16 are vented to low hydraulic pressure via pipe 42, ports 40, 37 and pipes 59, 57. Similarly with a fall-off in rotor speed below the set value the blades 12 are moved into a finer pitch position and chambers 21, 23, 25 are vented to low pressure. The rotor is mounted on an aircraft, either by means of a drop out leg or in a duct having closable entry flaps and drives an emergency hydraulic pump 44, alternator, fuel pump or pneumatic device. When it is desired to stop the rotor retraction of the leg is initiated or the entry flaps closed so that the speed falls-off. When the latter has fallen to about 800 r.p. m. flyweights 27 have moved sufficiently far inwardly to allow the spool 28 to move to the extreme rightwards position shown in Fig. 2 in which all the actuator chambers 20 to 25 are vented to low pressure via pipes 41, 42, 59. A torsion spring 17 connected between the bevel gears 14, 15 can thus move the latter so that the blades 12 are placed in a coarse pitch position ready for restarting when the turbine is next required. In a modification spring 17 is omitted and the blades 12 are moved manually into their coarse pitch position when the aircraft has landed. In a futher modification the actuator 16 is of piston and cylinder type.
Patent GB-1491024-A (GB)
Title: Discoidal winding structure for dynamoelectric machines
IPC: H02K23/54
Filed: 1974-12-17
Abstract: 1491024 Coils for dynamo-electric machines CANADIAN GENERAL ELECTRIC CO Ltd 17 Dec 1974 [19 Dec 1973] 54380/74 Heading H2A A discoidal winding structure for planar air gap machines comprises a plurality of stranded coils 46 overlapped and bonded together to form a disc portion 52 containing the coil sides and inner and outer rings 54, 53 containing the end windings, the strands of each coil side diverging from the inner ring to the outer ring whereby each coil side is thicker in the axial direction at its end adjacent the inner ring than at its end adjacent the outer ring, so that the disc portion 52 has axially opposite flat sides which converge from the inner ring to the outer ring. The winding structure may be on the rotor or stator of a D.C. or A.C. motor or generator.
Patent GB-1219561-A (GB)
Title: Condenser microphone
Inventor: YOSHIDA TOMIO
IPC: H04R19/04
Filed: 1968-01-22
Abstract: 1,219,561. Condenser microphones. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 22 Jan., 1968, No. 54700/65. Heading H4J. A condenser microphone comprises a diaphragm C (Fig. 4), and a back electrode D as electrical elements and sound-absorbing material A in the rear of the back electrode D. The back electrode D has 100 or more holes or crevices per square cm. in it. The thickness of the back electrode D is smaller than the mean diameter of the holes or crevices. The area occupied by the holes or crevices is about 20% to 30% of the total area of apertured and non- apertured portions of the back electrode D and the mean effective radius of the non-apertured portion is more than 10 times as long as the distance between the diaphragm C and the back electrode D. As shown, the sound-absorbing material A is porous and is of sintered metal or sintered plastics. A perforated, conductively-coated glass plate E acts as substrate for the back electrode D. Alternatively porous material, such as chemically bonded plastics particles, is used as sound-absorbing material, an electrically conductive coating being used as a back electrode (Fig. 3, not shown). Alternatively, a bundle of fine wires, fine tubes or a rigid body provided with straight holes bored through it is used as sound-absorbing material (Fig. 5, not shown). In another arrangement, porous ferromagnetic material such as ferrite is used as sound-absorbing material (Fig. 6, not shown). The ferromagnetic material also acts as a magnetic core on which an inductance coil is provided.
Patent GB-1105680-A (GB)
Title: Thermoplastic materials and process for producing same
IPC: C08J3/22
Filed: 1965-12-29
Abstract: Granular particles of thermoplastic materials are coated with a layer of polyethylene wax having a powdered material dispersed therein and compatible with said wax, said wax being solid at the temperature of at least 30 DEG C. the granules may be of homo-polymers and interpolymers of monomers containing the group <FORM:1105680/B1-B2/1> where R1 is H, F or Cl and R2 is H, alkyl, aryl or halogen. Exemplified are homo- and inter-polymers of ethylene, propylene, isobutylene, vinyl halides, e.g. vinyl chloride, vinylidene chloride, vinyl esters of carboxylic acids, e.g. vinyl acetate, vinyl propionate, vinyl benzoate, vinyl ethers, e.g. vinyl methylether, vinyl ethyl ether, and saturated carboxylic acids, and derivatives thereof, e.g. acrylic acid, methacrylic acid, acrylamide, acrylonitrile, polyesters of e.g. terepthallic acid esters, vinyl aromatic compounds, e.g. styrene, vinyl napthalene, as well as tri-chloroethylene, tri-fluoroethylene, tetrafluoroethylene, chlorotrifluoroethylene, dialkyl fumarates and 1, 2-dichloroethylene. Powdered materials which may be used are fillers, dyes and pigments, powdered metals, e.g. aluminium and copper, inorganic oxides, for example titanium dioxide and ferric oxide, and salts such as lead chromate, sulphates and arsenates may also be used.  Organic pigment such as prussian blue, gamboge, and carbon black are also specified. The powdered material may be of 1 millmicron to 1,000 microns in size.  The thermoplastic granules and wax may be introduced into a heated vessel in a number of ways.  The granules and powdered wax may be introduced separately and directly into the vessel, or they may be first pre-blended and the blend then introduced into the vessel where the granules can be sprayed with molten wax by passing them into the spray thereof, after which they are introduced into the vessel.  The vessel is maintained at at least the melting point of the wax.
Patent GB-1127188-A (GB)
Title: 10-sec. aminoalkyl phenothiazine derivatives and process for their production
IPC: C07D279/18
Filed: 1965-12-29
Abstract: 1,127,188. Organic compounds. J. R. GEIGY A.G. 29 Dec., 1965 [30 Dec., 1964], No. 55018/65. Heading C2C. Novel compounds of the general formula wherein X represents hydrogen, halogen up to the atomic number 35, the trifluoromethyl radical or an alkyl, alkanoyl, alkoxy, alkyl. sulphonyl or dialkylsulphamoyl radical, having at most 4 C atoms in each alkyl radical, Y represents hydrogen or the acyl radical of a carboxylic acid, A represents an alkylene radical having 2-5 carbon atoms in a straight or branched chain and R represents a C 1-4  alkyl radical or A and R together represent an alkane triyl radical having at most 8 carbon atoms in a straight or branched chain, which radical with #N-O-Y forms a C-pyrrolidinyl-alkyl, C- piperidylalkyl or C - hexahydroazepinylalkyl radical substituted at the nitrogen atom by -O-Y and optionally substituted at carbon atoms by alkyl radicals, and their salts with inorganic and organic acids, are prepared by reacting a secondary amine of the general formula wherein X, A and R have the meanings given above with an acyl peroxide the reaction being performed in an inert solvent at a temperature of at most 20 C. and in the presence of an acid binding agent to form an N-acyloxy compound embraced by first general formula above wherein Y represents a monoacyl radical, if desired, hydrolysing this N-acyloxy compound and, if desired, converting the N-hydroxy compound obtained into an acid addition salt or into another O-acyl derivative embraced by the general Formula I. Pharmaceutical preparations in conventional form for oral, rectal, topical or parenteral administration comprise a compound of the first general formula above and at least one inert pharmaceutical carrier.
Patent GB-1340838-A (GB)
Title: Hydraulic rack-and-pinion steering systems
IPC: B62D5/10
Filed: 1972-11-29
Abstract: 1340838 Power assisted steering ZAHNRADFABRIK FRIEDRICHSHAFEN AG 29 Nov 1972 [1 Dec 1971] 55146/72 Heading B7H In an hydraulic rack and pinion steering system of the type including a servo cylinder 6 disposed coaxially to the rack 2, a piston 7 fastened to the rack 2, a first seal A on the piston and second and third seals B, C at the ends of the cylinder 6, the first and second seals A, B are resiliently mounted for radial movement so that deflections of the rack 2 due to lateral loads can be accommodated by the seals. The first seal A (Fig. 2) consists of a piston ring 10 which carries an elastically mounted sealing ring 11 in an outer groove and which is supported by a rubber ring 12 on the rack 2. Axial movement of the seal A is prevented by a pair of washers 13, 14 and a pair of circlips 15, 16. The second seal B includes a sealing ring 19 carried by a thickened end portion of a tube 17, the other end of which is resiliently mounted in casing part 3 so that the seal B can move radially, this movement being permitted by clearance 20. The tube 17 is resiliently mounted in the casing part 3 by means of a circlip 23 fixed to the tube 17, the circlip 23 being held between a first retaining ring 22 fixed in the casing 3 and a second retaining ring 23 which bears against a sealing ring 27 which embraces the end of the tube 17.
Patent GB-1323737-A (GB)
Title: Hollow member frame structure
IPC: E06B3/972
Filed: 1970-11-27
Abstract: 1323737 Joints AKTIENGESELLSCHAFT FUER VOGT-PATENTVERWERTUGEN 27 Nov 1970 [5 Dec 1969] 56553/70 Heading A4H [Also in Divisions E1 and F2] A frame made up of hollow-members of polygonal cross-section includes at least one coupling unit expanded into an end of a frame member, the coupling unit having loosely interconnected flats braced in at least two angularlyspaced directions in pairs against the inside surfaces of the frame member with elements resting in the corners of the frame members to position the flats. As shown in section in Fig. 2 and in exploded view in Fig. 4 a coupling for connecting two frame members 1 at right angles consists of right-angled loose flats 2-5. Each limb of flats 2 and 3 carries a plate holder 9 in which spreaders 12 are displaceably mounted, being pushed apart by a bolt 13. The spreaders act on the flats 2-5 through rollers 14. The elements are formed by wires 8 located in the gaps between the ends of the flats. Alternatively the elements may be formed by interengaging teeth formed on adjacent flats. In an embodiment for a narrow frame member Fig.9 (not shown), two cylinders and one spreader only is used. An embodiment for forming a T-connection between two frame members is also described.
Patent GB-1145178-A (GB)
Title: Improvements in or relating to devices for dispensing cloths or rags from a container
IPC: B25J9/04
Filed: 1967-12-13
Abstract: 1,145,178. Dispensing cloths. H. ENGELHARDT. 13 Dec., 1967 [30 Dec., 1966], No. 56615/67. Heading B8S. Cloths C contained in container 2 are discharged one by one by gripper 13 which is formed telescopically at 12 and carried pivotally by wall 1 at the top thereof. Gripper 13 grips a cloth C, rises vertically by telescoping and then swings pivotally to discharge the cloth at 17 down shoot 15 whilst operating recording means 17. The gripper then returns to its original position. Container 2 is mounted to rotate at 3 and is ratchetted round to present another cloth to the gripper 13. Alternatively gripper 13 may be carried by a pentograph. Gripper 13, (Fig. 4).-Gripper 13 comprises fixed gripper element (32) and movable gripper element (33) pivoted at (34) and operated by cylinder (38). It is carried by element (27) which is movable vertically on pin (25) against spring (27) and is guided by guide (31) relative to arm (26) which carries the gripper.
Patent GB-1285200-A (GB)
Title: A method and an apparatus for raising deposits, especially gravel and the like
Inventor: TROENDLE ALOIS
IPC: E02F3/92
Filed: 1969-11-20
Abstract: 1285200 Suction apparatus A TRUNDLE 20 Nov 1969 [20 Dec 1968] 56924/69 Heading E1F Material is raised from subaqueous deposits by being mechanically loosened and conveyed up a dredge pipe to a separator, a gaseous pressure medium introduced at the lower end of the pipe to produce suction having a tangential component of movement creating a rotary motion of the water. The dredge pipe 11 is surrounded by an outer pipe 10 and the pressure medium, e.g. compressed air, is fed downwardly between the pipes to an adjustable annular nozzle 8 having curved and inclined guide fins 6 to rotate the air. A cutting device having teeth 54 .. 58 is rotatably mounted on the pipe 10 and is driven by hydraulic motors 20, 21 disposed in a sealed housing supplied with compressed air. The dredge pipe may have resilient sections disposed intermediate other sections of the pipe, Fig. 4 (not shown). Compressed air may be directed through the dredge pipe 11 to float the lower end of it. (For Figure see next column)