baber/WOPTO huggingface dataset:
Patent GB-1176678-A (GB)
Title: A Method of and Apparatus for Testing a Powdered Material to Determine the Fineness Thereof.
IPC: G01N15/02
Filed: 1967-11-28
Abstract: 1,176,678. Electro-physical measurement - particle size. FULLER CO. Nov. 28, 1967 [Nov. 30, 1966], No. 54163/67. Heading G1N. The fineness of particles is determined by measuring the fluid permeability of a sample, compacted to a known porosity or density, determining the length of the sample in the direction of measurement of the fluid permeability and multiplying the one by the other to obtain a valve of the fineness of the particles. As shown, the sample is introduced into a tube 16, Fig.1, via inlet 14 while the tube and inlet are vibrated by devices 56 to obtain an initial even density of the sample, the tube being filled to the level of overflow outlets 28. After filling a piston 30 is moved downwards under the action of a cam 44 driven by the shaft 45 of a motor 46, to compress the sample. Measurement of porosity. During compression the density of the sample is continuously monitored, by measuring the capacitance of electrodes 62, one connected to an oscillator 66, Fig. 2, the other via an amplifier 70 to a comparator 68 where the signal on one electrode 62 is compared with that on the other. When the inputs from the oscillator and amplifier are equal, a relay 72 is energized to deenergize the compression motor 46. The set valve of porosity is determined by adjustment of capacitor 74 connecting the oscillator to the amplifier. Alternatively the porosity of the sample may be determined by measuring the absorption of electromagnetic or particle radiation which occurs across the sample. Measurement of fluid permeability. The fluid permeability is determined by connecting constant fluid-pressure differential between porous plates 18, 32 at the lower end of tube 12 and the lower surface of piston 30 respectively and measuring the rate of flow of fluid through the sample using flowmeter 76 which produces a representative voltage at outputs 86, 88. Alternatively the fluid permeability may be measured by applying initially a known pressure difference across the sample and measuring the time for it to be reduced to a predetermined value or by applying setting up constant flow rate of fluid through the sample and measuring the pressure difference across it. Determination of fineness. The voltage output from the fluid-flowmeter 76 is connected across a potentiometer 96 geared to the motor 46 to move according to the position of the piston 30 and therefore according to the length of the sample. The voltage between the slider and one end of the potentiometer is representative of the fluid permeability of the sample, i.e. the fineness of the sample corrected according to the length of the sample.
Patent GB-1142504-A (GB)
Title: Fluorescent and coloured polymers
IPC: B01F25/74
Filed: 1965-12-21
Abstract: 1,142,504. Stilbene derivative. DAINICHISEIKA COLOR & CHEMICALS MFG. CO. Ltd. 21 Dec., 1965 [29 Dec., 1964 (2)], No. 54171/65. Heading C2C. [Also in Divisions C3, C4 and D1] A fluorescent compound of the formula is prepared (see Examples I and XXI) by reacting 2 moles of cyanuric chloride with 1 mole of diaminostilbene-disulphonic acid, neutralizing with sodium carbonate, reacting further with 2 moles of 3,5-dichloro-1,4-phenylenediamine and then with 2 moles of monoethanolamine. The product is diazotized with sodium nitritehydrochloric acid, and the diazonium salt obtained is used as a polymerization catalyst in the production of fluorescent polymers (see Division C3).
Patent GB-1446436-A (GB)
Title: Water closet systems for yachts
IPC: B63B29/14
Filed: 1972-11-24
Abstract: 1446436 Discharging ship's closets P B DOLPHIN 23 Nov 1973 [24 Nov 1972] 54428/72 Heading E1C A ship's w.c. includes a pump 50 for directing flush water to a venturi device 34, 35 in the pan's outlet to thereby discharge the pan. A valve 80 directs the flow of water from the pump. The pan discharges through a valve 111 into a holding tank. To empty the holding tank, valve 111 is closed and valve 80 operated to pump water to compress air in reservoir 59, the water entraining further air through a venturi pump 62 and inlet 63. The compressed air discharges the holding tank's contents. The pump's inlet and closet pan's outlet include anti-siphon loops with either one-way valves or bleed holes for admitting air.
Patent GB-1083939-A (GB)
Title: Production of self-extinguishing polyurethanes
IPC: C08G18/38
Filed: 1965-12-23
Abstract: A self-extinguishing polyurethane product is prepared by curing a mixture of polyether-, or polyester-polyol, an organic polyisocyanate, a curing catalyst, sufficient of a saturated aliphatic ether containing a free OH group and a quaternary carbon atom carrying a bromomethyl group to give 0.1-25% by weight of bromine in the product, and sufficient aliphatic ether of a bis-(hydroxyalkyl) phosphinic acid ester containing free OH groups to give 0.1-6% by weight of phosphorus in the final product. The moulding mass may also include a blowing agent. Suitable bromine compounds can be prepared by reacting at least 1.2 mols. of a compound such as pentaerythritol-, mono-, dior tri-bromhydrin; 1,1-dimethylol-1-bromomethyl-, or 1-methylol-1,1-bis-(bromomethyl)-ethane, propane or butane; or the mono-, di- or tri-bromohydrin of 1,1,1-trimethylol isopropanol with 1 mol. of ethylene oxide; 1,2-propylene oxide; styrene oxide; epichlorohydrin; epibromhydrin; glycidol; or the methyl or ethyl ester of glycidic acid.  Suitable phosphorus-containing compounds can be prepared by etherifying bis-(hydroxyalkyl) phosphinic acids, forming the alkali metal salts, and esterifying them by boiling with epichlorohydrin.
Patent GB-1483659-A (GB)
Title: Thermoplastic compositions
IPC: C08L27/06
Filed: 1974-12-23
Abstract: 1483659 Thermoplastic compositions NYNAS-PETROLEUM AB 23 Dec 1974 [28 Dec 1973] 55519/74 Heading C3P A thermoplastic composition comprises:- (a) 10-80% by weight of an oxidatively polymerized extract from mineral oils which is solid at room temperature and contains not more than 10 atomic per cent of atoms other than C and H, the oxidatively polymerized extract having a content of aromatic carbon of at least 35% (based on total carbon content), and a softening point (Ring and Ball) of at least 80 C.; (b) 10-89À5% by weight of a primary plasticizer; and (c) 0À5-60% by weight of a vinyl chloride polymer. The composition may include a tackreducer for (a) and/or a filler. The plasticizer may be a phthalate (e.g. dioctyl phthalate), phosphate, terephthalate or naphthenic acid nitrile. A Ba-Cd stabilizing agent may also be present.
Patent GB-1249378-A (GB)
Title: Improvements in or relating to composite electrode/gas-diffuser bodies for use with electro-chemical cells
Inventor: LOFGREN HAROLD C
IPC: G01N27/40
Filed: 1969-11-13
Abstract: 1,249,378. Electro-chemical analysis. HONEYWELL Inc. Nov. 13, 1969 [Nov. 18, 1968], No. 55752/69. Heading G1N. An electrode is bonded to a semi-permeable membrane by an inert porous layer. As described the electrode may be gold mesh attached by a fluorinated ethylene - propylene copolymer film to a P.T.F.E. barrier. The three layers are placed between aluminium sheets in a hot press to force the electrode mesh into the heat-softened film and bond it to the barrier. The aluminium is subsequently etched away by sodium hydroxide, and the laminate cleaned with nitric acid. A list of suitable film/barrier pairs is given.
Patent GB-1305477-A (GB)
IPC: D01H4/44
Filed: 1970-11-24
Abstract: 1305477 Control of open end spinning machines VYZKUMNY USTAV BAVLNARSKY 24 Nov 1970 [19 Jan 1970] 55777/70 Heading DID In an open end spinning machine the stopping sequence is controlled automatically by a control mechanism 29 which on pressing stopping button 31 initiates the following:- Motors 21 and 25 are switched off, clutches 22 and 26 are disengaged and brakes 23 and 27 are activated thus stopping the fibre combing roller and feeding roller 4 and 5 respectively. Yarn is then withdrawn from the spinning chamber 1 for just long enough to remove all fibre therein but leave the yarn end in the withdrawing tube 34 under the influence of spinning chamber suction. Withdrawal is stopped by turning off motor 19 and simultaneously disengaging reversing clutch 28 and activating brake 33 to stop withdrawal rollers 6 and winding rollers 7. Finally the spinning motor 13 is turned off. On pressing starting button 30 the spinning motor 13 starts first then fibre feed is resumed and finally the yarn is fed back into the spinning chamber to piece up and thence be withdrawn normally. All clutches and brakes are electromagnetic. The spinning chambers 1 are housed in a unitary frame 3 and are driven by an endless belt 12. Reference has been directed by the Comptroller to Specification 1084662.
Patent GB-1453160-A (GB)
Title: Herbicidal compositions
IPC: A01N43/70
Filed: 1974-12-30
Abstract: 1453160 Herbicidal compositions NIPPON SODA CO Ltd 30 Dec 1974 [10 Jan 1974] 56013/74 Heading ASE Herbicidal compositions comprise from 5 to 95% by weight of at least one compound or metal salt thereof of formula: wherein R<SP>1</SP> and R<SP>2</SP> are C 1 -C 4  alkyl groups and R<SP>3</SP> is a C 1 -C 4  alkyl group, an allyl or propargyl group, provided that R<SP>1</SP> and R<SP>2</SP> are not both methyl, and from 95 to 5% by weight of at least one herbicide selected from urea, triazine, carbamate, diphenyl ether and phenoxyacetic acid herbicides, 3-isopropyl-2, 1, 3- benzothiadiazine-4-one-2, 2-dioxide and 1- phenyl-4-amino-5-chloro-pyridazine. Extensive lists of specified herbicides are included in the Specification.
Patent GB-1165590-A (GB)
Title: Improvements in Tape Embossing Apparatus.
IPC: B41K3/36
Filed: 1967-12-11
Abstract: 1,165,590. Selective printing. APSCO PRODUCTS. 11 Dec., 1967 [22 Dec., 1966] No. 56182/67. Heading B6F. Type wheel machines; embossing plastics strips.-A manually operated embossing tool comprises an upwardly open tape feed channel 11, 12, a type wheel assembly 15, Fig. 9, projecting sidewardly into the channel and rotatable to bring selected dies into position for embossing tape 14, an actuator 42 adapted to effect embossing of the tape and to advance the tape along the channel, and includes a friction roller 56 directly above the tape feed path and freely rotatable manually to feed the strip in either direction, embossed characters on the tape being visible at least as soon as the tape passes the periphery of the type wheel assembly. Type wheel construction.-The type wheel assembly 15 includes an upper disc 16 formed with recesses 27 conforming to the shapes of die elements 29 formed on spring fingers 28 fixed to a lower disc 17. The discs 16, 17 are rotatable about an axis 180 and are interconnected by pins 31. The discs 16, 17 are mounted between fixed plates 18, 19, the upper fixed plate 18 bearing a marker (25), Fig. 7 (not shown) which is registrable with indicia on the upper surface of the upper disc 16 for character selection. Impression arrangements. A hammer 34 is held by a spring 86 against a retainer 84 fixed to the inside of the actuator 42, and is operated by upward movement of the actuator 42 about a pivot 48. Strip feeding, guiding, and cutting arrangements.-The tape 14 is automatically fed on a return, downward, stroke of the actuator 42 by a pawl 69 engaging a ratchet wheel 65 fixed to a feed roller 61. On an upward stroke of the actuator, the pawl idles over a tooth of the wheel 65, an arm (75), Fig. 5 (not shown), of a lever 70 bearing the pawl 69 and a surface 76 of a tape guide 77. The guide 77 is fastened to the body of the tool and guides the tape between the rollers 56, 61. A second tape guide 93a directs the tape into the embossing position. The tape is cut by a pair of blades (36, 37), Fig. 12 (not shown), formed on the upper disc 16 of the type wheel assembly, and which coact with a platen (35), one severing a portion of tape and the other cutting an upper plastics layer (38) only, to facilitate removal of a backing layer (39). A roll of tape is located in a magazine 46 formed within the actuator 42, access to which is afforded by a slidable cover 50.
Patent GB-1235481-A (GB)
Title: Information transmission system
Inventor: MORRIS PETER DUNCAN
IPC: H04M11/06
Filed: 1967-12-19
Abstract: 1,235,481. Signalling by audio-frequencies. BRITISH AIRCRAFT CORP. Ltd. 12 March, 1969 [19 Dec., 1967], No. 57589/67. Heading G4H. [Also in Division H4] In a system for signalling between a central station and a number of remote gun stations by radio telephone or over telephone lines the central station has a microphone and an encoder adapted to accept a decimal input and produce a binary coded output the "1" and "0" bits of which are represented by two audio-frequency tones, means being provided to transmit either the output from the microphone or the output from the encoder and means at the receiver to reproduce either speech or the original decimal input. The decimal input, from a computer for a keyboard, is applied to the encoder and a switch passes it to the transmission circuit. The signals are gated into a shift-register in the encoder under the control of clock pulses. A counter gives a signal when the message is complete to switch the transmission back to the microphone. At the gun station the two frequencies are separated by filters, the output of the "1" filter being applied to a call recognition circuit which enables the decoder. This comprises a shift register into which the incoming serial signals are shifted under the control of clock pulses derived by combining the outputs of the "1" and "0" filters. The output of the shift register is recoded from binarycoded-decimal form into decimal form and displayed on indicators showing the azimuth and bearing to which the gun is to be laid. Speech signals are reproduced on a speaker.
Patent GB-1172378-A (GB)
Title: Continuous Wave Lasers
IPC: H01S3/093
Filed: 1966-12-23
Abstract: 1,172,378. Lasers. UNION CARBIDE CORP. 23 Dec., 1966 [29 Dec., 1965], No. 57832/66. Heading H1C. In a laser in which a crystal active medium 18 and a pumping source 12 are located at respective foci of a reflecting enclosure 14 of elliptical cross-section, the pumping source comprises a high-pressure arc 16 produced within a trans. parent, e.g. quartz, envelope 24 between a tubular anode 22 and a cathode 20, the arc being stabilized and constricted into a lineal path by a swirling flow pattern of arc gas which is circulated under pressure between inlets 30 and an exit passage 28 in the anode. The arc may be started by a high-frequency discharge. The anode and cathode are water-cooled and are respectively formed of tungsten with or without thorium content, and copper preferably having a tungsten tip. An alternative anode material is a copper-silver alloy. Suitable arc gases are argon, xenon and krypton. The laser crystal may be either ruby or neodymium-doped yttrium aluminium garnet which is housed in a transparent, e.g. quartz, envelope through which water or other fluid coolant is circulated. The output of the laser is continuous and is concentrated on a workpiece X by a lens 44. To prevent deterioration of the quartz envelope 24, a gas such as argon or air is circulated under pressure through the enclosure 14 between inlet 32 and outlet 34. Additionally or alternatively the pumping source may be fluid-cooled by water or other radiation-transmitting liquid circulated between the envelope 24 and an outer transparent sleeve (not shown). Use of a tubular cathode with arc gas introduced at both ends of the arc cavity 26 is suggested.
Patent GB-1449200-A (GB)
Title: Harmonic filter
IPC: H01P1/212
Filed: 1973-12-13
Abstract: 1449200 Harmonic filters PLESSEY CO Ltd 9 Oct 1974 [13 Dec 1973] 57937/73 Heading H1W A waveguide harmonic filter comprises a coaxial line coupled between a pair of waveguides by impedance transformers. The latter may be of the probe or the cross-bar type. As shown, two short-circuited lengths 1, la of rectangular waveguide are coupled by a coaxial line having an inner conductor 7 and an outer conductor 9 partly formed by the outer surface of the waveguides. The co-axial line is coupled to the waveguides by transformers comprising cross-bars 5 extending between the narrow walls of the waveguides and centrally connected to the ends of the co-axial line by conductors 6, 8.
Patent GB-1254121-A (GB)
Title: Net fabric and method and apparatus for knitting the same
IPC: D04B1/10
Filed: 1968-12-06
Abstract: 1,254,121. Knitting. MASRIERA S.A. 6 Dec., 1968 [7 Dec., 1967(3)], No. 58094/68. Headings D1C and D1K. A net fabric is knitted by retaining around two needles a sinker loop 20a formed in one course and knitting it together with yarn fed for a subsequent course, on the two needles the loops 19, 19a and connecting sinker loop 20, 20a are thus of double yarn. An orifice 21 is formed between the corresponding wales. The sinker loops are spread and held by vertically movable pairs of pelerine instruments situated between-the needles and shaped accordingly. In one embodiment pairs of instruments 3, 3a having an offset upper portion and a spring 6 fixed thereto are provided between adjacent needles. The springs normally bear against the needles but when raised above them, spring outwards to spread the loop. In an alternative embodiment the sinker loops are caught on the tips 11 of the instruments and spread by the inclined edges 12. The loops are retained clear of the needles on the shoulder 14 for the desired number of courses. When they are to be knitted the needles are raised so the loops land on the latches to be taken with the fed yarn, and the instruments are lowered.
Patent GB-583672-A (GB)
Abstract: 583,672. Dividing by fusion. LINDE AIR PRODUCTS CO. Nov. 15, 1944, No. 22550. Convention date, Dec. 30, 1943. [Class 83 (iv)] The slag, produced during flame desurfacing of a metal body and projected along the face thereof, is disposed of by projecting a stream of cooling fluid across said face to deflect the slag soon after production and cool and break it up into small particles. As applied to a machine of the kind described in Specification 553,337 four nozzles 25 . . . 28 are arranged to direct streams 21 . . . 24 of air, water, or a mixture thereof across the four surfaces of the bloom W being desurfaced by the heads 11 ... 14. The nozzle 25 is carried by a pipe 30 mounted on the head 12 so that, in spite of adjustment of said head, the stream 21 will always pass just below the lower face of the billet and deflect slag produced by the head 11 into an inclined deflector 38 from which it falls into a pit. The nozzles 26, 27 are carried by a pipe 33 mounted on the head 13 so that the streams 22, 23 are always in correct rotation to the left hand and upper surfaces of the bloom, the slag from the stream 23 being deflected by the plate 38 also. The nozzle 24 is carried by a pipe 35 mounted on the head 14. The streams 21, 23 are arranged in a plane different from the plane of the streams 22, 24 so that they do not interfere one with the other. The target face 39 is preferably arranged at 52 degrees to the streams to reduce splashing. If the bloom is arranged with all its surfaces at 45 degrees to the horizontal, all the streams can be directed downwardly, and those acting on the lower faces may intersect. When streams of water are used each nozzle has a slot orifice to give a ribbon of water arranged edgewise to the surface of the bloom W. If required a number of parallel streams may be used to completely deflect the slag.
Patent GB-1134027-A (GB)
Title: Temperature indicating device
Inventor: BOL JAN
IPC: G01K11/12
Filed: 1967-05-17
Abstract: 1,134,027. Optical apparatus. W. DABISCH. May 17, 1967, No.58798/67. Divided out of 1,134,026. Heading G2J. [Also in Division G1] The present Specification is divided from Specification 1,134,026 and is concerned with the construction and composition of the Christiansen optical filters as disclosed in that Specification.
Patent GB-1375559-A (GB)
IPC: B01L9/06
Filed: 1971-12-17
Abstract: 1375559 Specimen tube device F HOFFMANN-LA ROCHE & CO AG 17 Dec 1971 [30 Dec 1970] 58867/71 Addition to 1290957 Heading G1B A holder device for a test tube comprises a receptacle 11 for receiving a test tube, the receptacle having means for positively retaining the test tube and an elongate plate 34 whose longitudinal centre line is substantially parallel with the axis of the test tube when in the receptacle, the plate being integral with the receptacle and capable of supporting a data support of the punched card type, the plate having spaced apart mutually parallel grooves. The holder device preferably comprises a pair of receptacles 11, 12 Fig. 1 having flexible tongues 22, 24, 28, the upper edges of which are formed with beads Fig. 4 (not shown) which retain test-tubes inserted into the receptacles. The data support card may be glued to plate 34. The device may be an integral moulding formed with lateral projections 36, 37 for supporting the device. The projections may be parallelpipedical each having a trapezoidal bottom part 42 Fig. 2 for use with a complementarily shaped support, or may be cylindrical for use in pivoting the device.
Patent GB-1390949-A (GB)
Title: Frequency generating arrangement
IPC: H02P5/51
Filed: 1972-12-20
Abstract: 1390949 Control of A.C. motors SIEMENS AG 20 Dec 1972 [30 Dec 1971] 58933/72 Heading H2J The speeds of synchronous motors 7-10 are controlled, via frequency dividers 15-18 and frequency changers 11-14, by the output of a constant-frequency oscillator 20 or a variablefrequency oscillator 21, depending upon the condition of a switch device 23. When starting, the motors are controlled by oscillator 21, a potentiometer 24 being used to increase the output frequency of oscillator 21 up to the frequency of oscillator 20. The output frequency of the two oscillators are compared by a device 22 which, upon frequency equality, actuates switch 23 to connect oscillator 20 to the dividers 15-18. Device 22 also regulates the output frequency of oscillator 21 to tend to keep it equal to that of oscillator 20, any inequality leading to switch 23 disconnecting oscillator 20 and reconnecting oscillator 21. Fig. 2 (not shown) depicts the compounds of devices 22 and 23. The motors 7-10 may drive the rollers &c. in a spinning, stretching and winding machine for man-made fibres.