baber/WOPTO huggingface dataset:
Patent GB-1166122-A (GB)
Title: Improvements in or relating to resonant circuits for UHF
IPC: H03D9/06
Filed: 1966-10-05
Abstract: 1,166,122. Tuning by variable capacity diodes; transistor mixers. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 5 Oct., 1966 [13 Oct., 1965; 8 June, 1966], No. 44388/66. Headings H3Q and H3T. [Also in Division H1] A tuned resonant circuit includes a resonant line, e.g. 6, 11 or 19 tuned by a capacity diode, e.g. 8, 12 or 20, with an inductor, e.g. 21a, 21b, 21c connecting the line to the diode, the resonant frequency of the series resonant circuit composed of the diode and inductor changes at a greater rate than the resonant frequency of the tuned resonant circuit as the resonant line is tuned by variation of the bias on the diode. As shown, the resonant circuits are used at 7 and 9 to form a band filter following a U.H.F. amplifier 4, and also at 16 to form the frequency determining circuit of self-oscillating mixer 13. The inductors 21a, 21b, 21c increase the tuning range of the resonant circuits. Further inductors 22a, 22b, 22c in parallel with the corresponding diodes 8, 12, 20 permit the circuits to be used at higher frequencies, and further capacity diodes 23, 24, 25 may be switched into the circuits to provide a still greater tuning range. Choke 2 prevents transistor 4 oscillating at a frequency determined by impedances 8, 21a, 22a, 23a. Damping resistor 27 prevents an oscillation in mixer 13 due to choke 26 and of frequency determined by impedances 20, 21c, 22c and 25. The connection point 28 of resistor 27 is selected to be a nodal point of the series resonant frequency of impedances 20, 21c, 22c and 25. Strip line techniques and integrated circuits may be used.
Patent GB-1197529-A (GB)
Title: Thermometer
Inventor: LAFONT RAYMOND JEAN BAPTISTE
IPC: G01K5/70
Filed: 1968-09-18
Abstract: 1,197,529. Thermometers. R.J.B. LAFONT. Sept. 18, 1968 [Oct. 31, 1967], No.44408/68. Heading G1D. A thermometer, particularly for indicating to a vehicle driver the likelihood of the occurence of frost, comprises a coiled bi-metal strip 4 carrying a pointer 5 with at least two different colour zones 12, 13 which are individually and successively visible are through each of at least two windows 9, 10 which are offset with respect to one other, the appearance of one colour zone behind its respective window indicating that frost is likely to occur. The coiled bi-metal strip 4 is carried on a pin 6 secured to the channel portion of a casing 7 in the side faces 14, 15 and tabs 8 for securing the casing to the member in which the windows 9, 10 are provided. As described the windows are formed as transparent areas in a vehicle outside rear-view mirror and the colour zone 12 visible through the window 9 being green, the colour zone 13 being red. The arrangement is such that at normal temperatures the green zone 12 is seen, but below 5‹C. the red zone 13 begins to be visible in the window 10, this zone completely filling the windows 10 at -1‹ C. Abutment of the pointer 5 with the side faces 14, 15 limits the range of movement of the pointer and ensures that one colour zone at least is always visible. A fluorescent strip 16 may be incorporated in the red zone 13 to improve indication at night.
Patent GB-1485653-A (GB)
Title: Method of and apparatus for folding sheets of material
IPC: B65H45/20
Filed: 1975-10-28
Abstract: 1485653 Folding paper W THURMANN 28 Oct 1975 [30 Oct 1974] 44420/75 Heading B8R A sheet 3, Figs. 1 and 3, is fed by rollers 1 through a gap 4 in a table 7 and between two folding rollers 9 carried on a reciprocating slide 10. The rollers 9 are moved to an extreme upper position, Fig. 3, thus forming in the sheet an S-shaped double loop comprising a folding loop 18 and a blind loop 17. As the rollers 8 return to the position of Fig. 1, the loop 18 is flattened against the table surface 8 to form a fold. The rollers 9 are moved successively to upper and lower extreme positions, to form a plurality of folds of alternately opposite sense. In another form, Figs. 7 and 8, the table has oppositely inclined surfaces 108 between which slide plates 134, 135. With the lower folding roller 109 engaging the upper surface 108, the double loop 118, 117 is formed over the plate 134, which is then retracted while the loop 118 is flattened by the roller 109 and plate 135. On the next operation, the upper roller 109 engages the lower surface 108 and flattens the loop against the plate 134. In another form, Fig. 10, the sheet is clamped by rollers 243 after passing between folding rollers 241, 242, the loop 218 being thus formed and directed to one side by a movable guide 240, then being flattened between rollers 242, 243 for one fold, and 241, 243 for the next fold. The guide may be replaced by reciprocating rods which push the fold between the flattening roller pair and are then removed axially.
Patent GB-1099367-A (GB)
Title: Improvements in or relating to fuel bearing components for nuclear reactors
Inventor: REDDING GEOFFREY BRIAN
IPC: G21C3/64
Filed: 1963-11-11
Abstract: 1,099,367. Compression moulding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 3, 1964 [Nov. 11, 1963], No. 44463/63. Heading B5A. [Also in Division G6] A refractory fuel-bearing component for a nuclear reactor having annular regions of different compositions is made by assembling in a die at least one graphite tube preformed to constitute a region or regions of a certain composition, placing in intimate contact with the outer surfaces of the tube or tubes a mixture of coated nuclear fuel particles, powdered carbon and a polymerisable binder, consolidating the mixture in the die and simultaneously heating it to polymerize the binder. A cylindrical fuel cartridge according to the invention comprises an inner annular region of graphite and an outer annular region of coated particles of nuclear fuel dispersed in carbonaceous filler material. The graphite region serves to protect the fuel-bearing region from possible erosion or corrosion by a fluid stream passing through the cartridge and has gas diffusion characteristics such that fission products may or may not be allowed to diffuse according to whether the fluid stream is a purge gas stream or a coolant stream. The strength and corrosion resistance of the graphite region may be increased by impregnation with silicon carbide. The first step in making the cartridge is the casting of a graphite sleeve from a mix of graphite and resin, the resin being cured after the shaping of the sleeve. The sleeve 1 is then fitted over a former 5 which is bolted to a base plug 4 over which a cylinder 7 is placed so as to leave an annular space 8 between the sleeve and the cylinder. A mixture of coated particles of nuclear fuel carbides, powdered carbon and a resin binder is poured into a funnel 9 mounted above the cylinder 7 and compacted in the annular space 8 by means of an annular piston 10, whilst simultaneously being heated to the polymerisation temperature of the resin, thus causing the mixture to key on to the inner sleeve 1. In an alternative embodiment, a plurality of parallel graphite tubes penetrate a mass of moderator in which nuclear fuel particles are dispersed.
Patent GB-1267823-A (GB)
Title: Process for the production of a photographic copy which simulates a multi-colour print
IPC: G03C7/28
Filed: 1969-09-10
Abstract: 1,267,823. Photographic colour proofs. CIBA-GEIGY A. G. Sept. 10, 1969 [Sept. 12, 1968], No.44658/69. Heading G2C. A colour proof is prepared from positive colour separations and a positive black separation (to be used for preparing printing plates) using a positiveacting silver halide colour photographic material (preferably silvo dye bleach type) by (1) twice exposing the material though each colour separation using light of the corresponding colour, once with and once without the positive black separation, the ratio of the amounts of light of the exposure with and without the black separation being in the range 1 : 19 to 1 : 1, and (2) developing the photographic material.
Patent GB-1522435-A (GB)
Title: Non-opaque flame retardant polycarbonate composition
IPC: C08L69/00
Filed: 1976-10-28
Abstract: 1522435 Flame retardant polycarbonate compositions GENERAL ELECTRIC CO 28 Oct 1976 [29 Oct 1975] 44938/76 Addition 1495969 Heading C3R A non-opaque flame retardant composition comprises a polycarbonate and from 0À001 to 2À0% by weight, based on the polycarbonate, of an alkali metal or alkaline earth metal salt of a monomeric or polymeric aromatic sulphonic acid, the polycarbonate and the salt each having a refractive index of from 1À54 to 1À65. Many salts are specified, e.g. potassium benzene sulphonate, sodium diphenylmethane-4-sulphonate and the potassium salt of a sulphonated polystyrene.
Patent GB-1513290-A (GB)
Title: Magnetic head cleaning tape and method
IPC: G11B5/41
Filed: 1975-10-30
Abstract: 1513290 Magnetic cleaning tape MINNESOTA MINING & MFG CO 30 Oct 1975 [29 Nov 1974] 45005/75 Heading B2E [Also in Division G5] A tape for cleaning the magnetic heads of video tape recorders comprises a polyester film coated, e.g. by rotogravure, with a binder containing magnetisable particles, e.g. of chromium dioxide, and non-magnetic abrasive particles, e.g. of aluminium oxide.
Patent GB-1409715-A (GB)
Title: Method ofand apparatus for recording and decoding frequency  modulated signals
IPC: G11B20/06
Filed: 1971-09-28
Abstract: 1409715 Data storage LUCAS INDUSTRIES Ltd 15 Sept 1972 [28 Sept 1971] 45035/71 Heading G4C Frequency modulated signals and a reference frequency signal are recorded on a magnetictape and on playback the ratio of the frequencies of the frequency modulated and reference signals is determined. The two signals may be recorded on separate tracks or may be superimposed on the same track in which case the two signals are separated by filters 12, 13 before being passed to a divided circuit 14 which determines the ratio of their frequencies and supplies a corresponding signal to a discriminator 15. The reference signal from filter 13 may also be supplied to a counter 16 which is arranged to reset discriminator 15 at the correct time even though tape speed may vary during playback of a string of identical bits.
Patent GB-1117737-A (GB)
Title: A combination of furniture element and connection means
IPC: A47B47/04
Filed: 1966-10-10
Abstract: 1,117,737. Convertible furniture and joints. H. SCHULTZE-BONATZ. 10 Oct., 1966 [9 Oct., 1965], No. 45093/66. Headings A4B, A4H and A4U. Convertible furniture is constructed from plane, rectangular slabs 1 each with intersecting recesses 2, 4 formed respectively in its border region 3 and its edge 5. The border recesses 2 may extend completely through the slab 1. Rows of further recesses (6, Figs. 2, 3) through the slab 1 are spaced apart by a multiple of the slab thickness. Slabs 1 are interconnected by pegs (8 or 10, Fig. 15) and locking pins (9) interengaged perpendicularly and engaged in the recesses 2, 4. The recesses 2, 4 may receive threaded sockets (11, 12) for the pins (9) or pegs (8). Slabs may be assembled to form cabinets of shelving (Figs. 7-10), a stool (Fig. 11), a table (Fig. 12), a chair (Fig. 13), or a flower box (Fig. 14).
Patent GB-1413733-A (GB)
Title: Propylaxis of malaria
IPC: A61K39/015
Filed: 1973-09-28
Abstract: 1413733 Malaria vaccine LE D'ANTONIO 28 Sept 1973 [28 Sept 1972] 45540/73 Heading A5B A vaccine compostion comprises BCG and a non-living malaria vaccine.
Patent GB-1182014-A (GB)
Title: Urethane and Urea Catalyst
IPC: C08G18/20
Filed: 1967-10-06
Abstract: 1,182,014. Diaza-bicyclo compounds. SANABBOTT Ltd. 6 Oct., 1967 [29 Oct., 1966; 29 Dec., 1966], No. 45956/67. Heading C2C. [Also in Division C3] The invention comprises acid addition salts of a diazo-bicyclo compound of formula wherein n is 3, 4 or 5 and m is 2 or 3. By acid addition salts is meant the salts formed with acids as well as the salts formed with other proton-donating compounds. The salts are formed by reacting the free base with a stoichiometric amount of a proton-donating compound. Specifically, salts of 1,8-diaza-bicyclo (5,4,0) undecene-7 are described. These are the salts with formic, acetic, propionic, enanthic, 2-ethyl hexoic, oleic, malonic, adipic, fumaric, naphthenic, lactic, glycolic, levulinic, glutamic, benzoic, anisic and nicotinic acids, phenol, p-cresol, p-nitrophenol, barbital, p-toluene sulphonic acid, methane sulphonic acid, hydrochloric acid, carbonic acid and phosphoric acid. 1,8 - Diazo - bicyclo (5,4,0) undecene - 7 may be prepared by reacting #-caprolactam with acrylonitrile to produce N-(#-cyanoethyl)-#- caprolactam which is reduced in the presence of Raney nickel to N-(γ-aminopropyl)-#-caprolactam which is refluxed with xylene and ptoluene sulphonic acid and the diaza-bicyclo compound isolated by fractionation. 1,4 - Diaza - bicyclo (3,3,0) octene - 4 may be prepared by condensing γ-butyrolactone with ethylene diamine and reacting the formed N- (#-aminoethyl) pyrrolidone in xylene with ptoluene sulphonic acid under reflux. 1,8 - Diaza - bicyclo (5,3,0) decene - 7 is prepared by condensing #-caprolactone with ethylene diamine and reacting the formed N- (#-aminoethyl) -#-hydroxycapronic amide with p-toluene sulphonic acid in the absence of xylene. The diaza-bicyclo compounds and their acid salts may be used as catalyst in the formation of polyurethanes (see Division C3).
Patent GB-1368296-A (GB)
Title: Energy absorbing device
IPC: F16F9/30
Filed: 1971-10-05
Abstract: 1368296 Energy absorbing devices HARTWELL CORP 5 Oct 1971 [29 Oct 1970] 46189/71 Heading F2S An energy absorbing device comprises an energy absorbing member 3, 46 of rubber or plastics, indenting means 13 positioned against a surface of the energy absorbing member 3, 46 so as to compress the member locally a carrier member 6, 11, 44 confronting the same surface of the energy absorbing member 3, 46 and carrying the indenting means 13 for movement relative to the energy absorbing member, and a supporting member 1, 47 confronting an opposite surface of the energy absorbing member 3, 46, the energy absorbing member being, at at least one end, restrained against movement relative to the supporting member 1, 47 but not bonded to it, so that the energy absorbing member 3, 46 can move locally relative to the supporting member in response to the compressions and tensions induced by the indenting means 13. This relative movement between energy absorbing and supporting members provides frictional damping. However the major energy absorption is due to hysteresis losses in the energy absorbing member. In the embodiment of Fig. 3, which absorbs longitudinal shocks the energy absorbing and supporting members are held together at one end by a clamp collar 4. The indenting means 13 are in their inoperative position because of a clearance groove 5. In the embodiment of Fig. 17 which absorbs rotary shocks the energy absorbing and supporting members are held against relative rotary movement at both ends by interlocking ribs and slots 48. The indenting means may be integral with the carrier member (Fig. 20, not shown). In Figs. 27, 28 (not shown) the supporting and energy absorbing members are flat bars and the indenting means are rollers.
Patent GB-1516569-A (GB)
Title: Recovery of rhodium
IPC: B01J31/40
Filed: 1976-11-05
Abstract: 1516569 Recovery of Rhodum E I DU PONT DE NEMOURS & CO 5 Nov 1976 [23 Dec 1975] 46220/76 Heading C7D Rhodum metal, in the form of small hollow particle agglomerates, is recovered from the still heel residues of the hydroformylation of an unsaturated organic compound, i.e. an olefinic cyclic acetal, in the presence of CO, H and a complex Rh-ligand catalyst, by heating the residue in the presence of water at 115-175‹C at a pH of 3-8 to separate the Rh from the ligand and recover the metallic Rh by filtering or centrifuging. The pH adjustment may be made with a base of an alkaline earth metal or alkali metal hydroxide, preferably MaOH, and the water may be a mixture of water and an alcohol or water and an organic liquid, provided the ratio water:heel is 0À1-1:1.
Patent GB-982965-A (GB)
Title: Improvements in or relating to inverters and converters
Inventor: GEORGE ROGER GEOFFREY
IPC: H02M3/338
Filed: 1962-12-07
Abstract: 982,965. Converting. STANDARD TELEPHONES & CABLES Ltd. Dec. 7, 1962, No. 46329/62. Heading H2F. [Also in Division H3] An inverter circuit comprises a direct current supplied oscillator which feeds the circuit output through a transformer whose turns ratio depends on the required alternating current output voltage and the, or each, switching element of the oscillator includes two or more amplifying devices with their main current paths in series, in which the control electrode, and hence the conducting or non-conducting condition, of one amplifying device of each switching element is controlled from the output of the oscillator, and in which the conducting or non-conducting condition of each other amplifying device is controlled in accordance with the conducting or non-conducting condition of the first amplifying device. In the Figure, the inverter, which is followed by a rectifier, is a blocking oscillator in which the primary winding Np of the transformer is connected to the D.C. input VIN through the transistors VT1, VT2. Resistors R3, R4 equalize the voltages across the transistors when cutoff. The resistors R1, R2 bias the base of VT1 so that it is cut-off when VT2 is cut-off. VT1 conducts when its emitter potential is made more positive by switching on transistor VT2, which is controlled by the winding Np of the transformer. Other embodiments are a pushpull circuit (Fig. 2, not shown), and circuits in which saturable transformers control the oscillators (Figs. 3 and 4, not shown).
Patent GB-1013946-A (GB)
Title: Antioxidant comprising aliphatic esters
IPC: C11C3/04
Filed: 1961-12-28
Abstract: Antioxidants for fatty substances e.g. tallow and lard, comprise the products of the alcoholysis reaction of an ester of a fatty acid with a hydroxy acid or an ester of a hydroxy acid.ALSO:Antioxidants for fatty substances (lipids) comprise the products of the alcoholysis reaction of an ester of a fatty acid with a hydroxy acid or an ester of a hydroxy acid.  The fatty acid ester preferably has 10 to 34 and preferably an even number, of carbon atoms in the acid residue, and 2 to 12 carbon atoms in the alcohol residue, for example, palmitic, stearic, and lauric acid, mono-, di-, or tri-glycerides. Hydroxy-acids may be ascorbic, citric, tartaric and lactic acids and their esters with alcohols of 2-12 carbon atoms are also mentioned. An excess of hydroxy acid or ester is used for the alcoholysis. Examples describe the reaction of ethyl palmitate with citric acid or tartaric acid; methyl, ethyl, or propionyl citrate or tartrate with ethyl, butyl, or propionyl palmitate; lauryl citrate with ethyl palmitate; ethyl stearate with tartaric acid; ethyl lactate with ethyl stearate; glycerol palmitate with citric, tartaric and lactic acids; and glycerol stearate with citric acid.
Patent GB-1015138-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C3/04
Filed: 1961-12-29
Abstract: 1,015,138. Stackable chairs. D. SEBEL & CO. Ltd. Dec. 29, 1961 [Dec. 29, 1960], No. 46655/61. Headings A4H and A4J. In a chair of the type disclosed in Specification 648,243 downward displacement of the combined seat and backrest 12 is limited by means such as prongs 8 extending rearwardly from the seat frame 4. Resilient grommets 14 may be interposed between the seat frame 4 and the prongs 8. The prongs 8 may be replaced by a member extending between the two limbs of the seat frame 4 or by a U-shaped member secured at its free ends to the front of the seat frame. The combined seat and back-rest 12 may be bowed to reduce contact of the seated person with the cross-members of the chair frame.
Patent GB-1194568-A (GB)
Title: Improvements in or relating to Magnetic Alloy Materials and Their Manufacture
Inventor: NARA TOMISABURO
IPC: C22C38/08
Filed: 1967-10-13
Abstract: 1,194,568. Iron alloys. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. Oct. 13, 1967 [Oct. 14, 1966; March 10, 1967], No.46731/67. Heading C7A. A magnetic alloy consists, by weight, of Ni 1-20% Al 0À5-4À5% Ti 0À5-3% optionally Cu 0À01-5% Fe balance (apart from impurities) Treatment sequences include the steps of (a) forging, hot-rolling, cold-rolling or homogenizing, (b) heating at 300 -900 C, (c) cooling by air or water quenching, (d) cold-rolling, and (e) ageing.
Patent GB-1132170-A (GB)
Title: Weaving mills
IPC: D03D41/00
Filed: 1967-10-16
Abstract: 1,132,170. Weaving mills. SULZER BROS Ltd. 16 Oct., 1967 [14 Oct., 1966], No. 47060/67. Heading DIE. A weaving mill contains looms having warp and cloth beams and at least one of the looms has a warp and/or a cloth beam located below the floor which carries the loom which floor has a hole therethrough for the passage of warp or woven cloth. The loom may be mounted on the floor of a room above the room containing the beams or on a false floor in the same room.
Patent GB-1246145-A (GB)
Title: A method of and apparatus for ultrasonic inspection
IPC: G10K11/28
Filed: 1968-10-04
Abstract: 1,246,145. Ultrasonic probes. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. 4 Oct., 1968 [6 Oct., 1967], No. 47162/68. Heading H4J. Ultrasonic inspection apparatus includes an electro-acoustic transducer 2 (Fig. 1) or 15 (Fig. 2), means for directing a column of water or other liquid normally to the surface of an article 1, 12 under inspection and at least one curved reflecting surface 4a, 18 to reflect an ultrasonic beam 3, 20 emitted by the transducer 2, 15 and to concentrate the reflected beam 5, 13 on a region where the liquid column strikes the surface of the article 1, 12. Preferably the reflecting surface or surfaces are of thickness equal to a quarter of a wavelength of the ultrasonic beam. The apparatus is for inspecting a hot article and the liquid strikes the article at sufficient speed to prevent the liquid reaching boiling point where the column strikes the surface, while also acting as a coupling liquid. The apparatus of Fig. 1 is for inspecting continuous cast billet 1, correct spacing being maintained by rollers 9. A rectangular emitting and receiving transducer 2 is of barium titanate. The reflecting surface 4a is cylindrical and of stainless steel. The reflected ultrasonic beam 5 is wedge-shaped and passes through a slot 8 in a plastics easing 6 of high coefficient of absorption for preventing parasitic emissions. Coupling water is introduced through a pipe 7 and discharged through a slot 8. The device of Fig. 2 is for inspecting a flat product 12 and includes spacing rollers 14a, 14b on a chassis 13. A cylindrical plastics container 10 has a circular hole 11 for water discharge. An annular emitting and receiving transducer 15 of barium titanate is fitted to the container top and there is a convex spherical reflector 17. At the bottom of the container 10 a second, concave, spherical reflector 18, having a circular hole 19, is arranged. Rays emitted by the transducer 15 are reflected successively by reflectors 18 and 17 and a conical beam 13 is obtained. The beam may be made parallel, for example, by axial adjustment of reflector 17.
Patent GB-1273012-A (GB)
Title: Electroless nickel plating
Inventor: HENTZSCHEL HANSPETER PAUL KARL
IPC: H01L21/00
Filed: 1969-09-26
Abstract: 1,273,012. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 26 Sept., 1969 [13 Dec., 1968], No. 47458/69. Heading H1K. [Also in Division C7] A semi-conductor wafer of, e.g. Si, Ge or gallium arsenide is formed with Ni contacts by activating the wafer with an aqueous HF solution containing 0À1 to 100 p.p.m, of Au<SP>+3</SP>, electroless plating, and then heating to above 370 C., e.g. 400 to 700 C. The nickel is then thickened, masked with a resist, and etched with HNO 3 .