baber/WOPTO huggingface dataset:
Patent GB-1159696-A (GB)
Title: Hybrid Circuit.
Inventor: BAKER ARTHUR HERBERT PATRICK
IPC: H04M9/08
Filed: 1966-09-30
Abstract: 1,159,696. Hybrids. STANDARD TELEPHONES & CABLES Ltd. 30 Sept., 1966, No. 43829/66. Heading H4B. A hybrid circuit, for coupling a two-wire line L (Fig. 1) to an unbalanced transmitting circuit T and to a signal receiving circuit R with substantially no transmission to the receiving circuit R of a signal originating in the transmitting circuit T, includes a transistor VT, an emitter load impedance R2 series-connected to a first supply line and a collector load impedance R1 series-connected to a second supply line. The supply lines are of opposite D.C. polarity but at the same A.C. potential. The impedances R1, R2 bias the emitter and collector electrodes. The two-wire line L is connected to the hybrid between the collector electrode and one of the supply lines. The transmitting circuit T is connected between the base electrode and one of the supply lines. A chain of at least two impedances R3, R4 separate from the load impedances R1, R2 is connected in series between the emitter and collector electrodes. The receiving circuit R is connected between one of the supply lines and a point 3 in the impedance chain. Preferably the impedances R1 to R4 are resistive, R1=R2 and R3=R4. A potentiometer may be connected between R3 and R4, terminal R being connected to the potentiometer slider. Reactance may be added to the chain to compensate for lack of exact phase opposition between points 1 and 2. Alternatively a matching transformer LT (Fig. 2) is used to couple the line L to point 1. The primary is connected in place of resistance R1 or in parallel with R1 via a blocking capacitor C2 (as shown). A capacitor C1 compensates for resulting phase error. Alternatively an inductive impedance having characteristics similar to the primary may be included in the emitter load. Shunt capacitance of the twowire line is compensated by a capacitor C3. A variable resistor may be included in either or both resistors R3, R4 or a potentiometer RV may be used.
Patent GB-1017198-A (GB)
Title: Skid resistant device for vehicle tires
IPC: B60C27/16
Filed: 1964-10-28
Abstract: 1,017,198. Anti-skid tyre attachment. TECNOGOMMA D'AGOSTINO S.A.S. Oct. 28, 1964 [Oct. 29, 1963], No. 43986/64. Heading B7C. An anti-skid tyre attachment comprises textile reinforced rubber segments 2 each having a restricted middle portion and connected at their ends by chain links 9 to endless side chains 3 fitted with tensioning tumbuckles 13, the segments when fitted on the tyre each covering an angle A between 20 and 35 degrees. Each segment has metal inserts 15 and is recessed on its outer face to improve road-holding. Projections 8 (Fig. 4, not shown) on its inner face dig into the tread surface and prevent circumferential creeping. An adjustment hook 12 is provided for each side chain 3.
Patent GB-1081916-A (GB)
Title: Improvements in or relating to engine mountings
Inventor: WARRY REGINALD FRANK
IPC: B66D1/20
Filed: 1964-10-28
Abstract: 1, 081, 916. Engine mountings. MARTIN HOIST and ENGINEERING CO. Ltd. Oct. 28, 1965 [Oct. 28, 1964], No. 44024/64. Heading F1M. A mounting for an engine which is required to drive via chain and sprocket transmission means 12, 13 a winch drum or other member located at a higher level than that of the drive shaft 11 of such engine, comprises a sub-frame or platform 14 on which the engine 10 is fixedly located and which is extended to project beyond the drive output end of the engine, resilient buffer or shock absorbing means 16 interposed between the sub-frame or platform and an underlying base frame or support 15 in the apparatus for which the engine is installed and additional resilient buffer or shock absorbing means 17 located between the extended portion of the sub-frame or platform and overlying stationary abutment means 18 the arrangement being such that while transmission of engine vibrations to the base frame or support will be substantially eliminated any upward or rearward tilting movement of the engine as a result of an upward pull exerted by the drive transmitting means will be substantially prevented by the additional resilient buffer or shock absorbing means. The buffer or shock absorbing means may each comprise a block of rubber or the like to each of two opposed faces of which a metal plate or the like is bonded. Instead of employing rubber blocks it may be feasible to employ coiled springs or other appropriate shock absorbing devices. The invention relates particularly to mountings for internal combustion engines such as may for example be employed in driving hoists or winches.
Patent GB-927625-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/86
Filed: 1959-12-30
Abstract: 927,625. Semi-conductor devices. M. CHAPPEY, and J. LANTIERI. Dec. 30, 1959 [Jan. 7, 1959; Oct. 10, 1959], No. 44264/59. Class 37. A two-terminal negative resistance device comprises a semi-conductor body with a first region of one conductivity type provided with an ohmic contact connected to the first terminal, an adjacent region of opposite type with an ohmic contact connected to the other terminal and a more heavily doped opposite type region at least partly covering the junction between the second and third regions. The device is said to be the equivalent of two interdependent field effect transistors. The arrangement shown in Fig. 2 is made by ultrasonically cutting a 200 Á diameter bar from a grown PN junction ingot and then electrolytically etching to the form shown by the method disclosed in French Specification 1,182,731. A P+ coating of the form shown is produced by electrolytically depositing indium on the bar and heating to alloy. Another arrangement produced by similar methods is shown in Fig. 3. The device shown in Fig. 5 is formed from a P-type silicon wafer by heating at 1300‹ C. in oxygen to form a silica layer, wax masking to leave only an annular region exposed, etching in hydrofluoric acid to remove the exposed silica layer and then diffusing phosphorus through the exposed annular region to form a zone 82. After dissolving away the remainder of the silica layer vapour deposited aluminium is alloyed into the wafer to form a P+ zone 83. Ohmic contacts 5, 6 are finally made to zone 84 and to P-type body 80 and if desired to zone 83. An alternative arrangement, Fig. 6, utilizing an annular P zone 83 between concentric annular N zones 86, 86<SP>1</SP> may be produced by a similar technique. Specification 753,014 also is referred to.
Patent GB-1403556-A (GB)
Title: Separation of methyl acetylene and or propadiene from admixture with propylene and/or propane
Inventor: ROTTMAYR F
IPC: C07C7/11
Filed: 1972-09-26
Abstract: 1403556 Solvent separation of hydrocarbons LINDE AG 26 Sept 1972 [1 Oct 1971] 44323/72 Heading C5E Methyl acetylene and/or propadiene is separated from a C 3 -fraction mixture containing the same and propylene and/or propane by selectively absorbing the methyl acetylene and/ or propadiene in a polar organic solvent, e.g. dimethyl formamide or N-methyl pyrrolidone at a temperature at which the ratio of the solubility of propadiene or methylacetylene in the solvent to the solubility of propylene or propane sterein is at a maximum for the absorption pressure used or does not differ from said maximum by more than 5%. Absorption in the required temperature range is assumed by carrying it out at a temperature between 30‹ and 40‹ C. higher than the condensation temperature of the C 3 -fraction. The absorption pressure may be carried out at 2 atmos. absolute or above.
Patent GB-1497912-A (GB)
Title: Polyether polyol-aminoplast blends
IPC: C08L61/20
Filed: 1975-10-28
Abstract: 1497912 Polyether / aminoplast blends AMERICAN CYANAMID CO 28 Oct 1975 44460/75 Heading C3R  Polyether / aminoplast blends comprise a water-soluble or water-dispersible blend of (A) from 10 to 90% by weight of a water-soluble or water-dispersible polyether polyol containing only carbon, hydrogen and oxygen and optionally halogen atoms, having an average molecular weight of 250 to 2000, at least two alcoholic hydroxy groups, from 80 to 20% by weight of hydrophobic moieties derived at least in part from aromatic or cycloaliphatic compounds and correspondingly from 20 to 80% by weight of hydrophilic moieties consisting of units and (B) correspondingly from 90 to 10% by weight of a compatible aminoplast crosslinking agent having an average molecular weight not greater than 1000. The polyether polyol may be prepared by reacting a phenolic novolak, a bisphenol or hydrogenated phenol with ethylene oxide and optionally another alkylene oxide. Conventional aminoplasts which may be alkylated are used. Wetting agents flow-control agents, pigments and catalysts may be added to the polymer blends. The blends may be used in the form of waterbased coatings on substrates of which iron phosphated steel panels are exemplified.
Patent GB-1205756-A (GB)
Title: Improvements in or relating to the application of adhesive and machines for use therein
Inventor: CLARKE TERENCE JAMES LEONARD
IPC: A43D25/18
Filed: 1966-10-06
Abstract: 1,205,756. Applying adhesive strip to a layer. BRITISH UNITED SHOE MACHINERY CO. Ltd. 5 Oct., 1967 [6 Oct., 1966], No. 44674/66. Heading B8F. One surface of a strip of thermoplastic adhesive film is rendered tacky by a hot gas stream and the strip is thereafter bonded under pressure to a marginal portion of a piece of sheet material, e.g. a shoe upper. The piece of sheet material may subsequently be secured to a further piece of sheet material by means of the adhesive film. The machine comprises a driven, rubber-covered feed roll 10, a downwardlybiased nylon presser roll 26 and a hot air delivery jet 69 for activating the lower surface of an adhesive film A immediately before the latter and a shoe upper (not shown), pass between the two rolls. The carriage 18-24 carrying the presser roll 26 is urged downwardly towards the feed roll 10 by a spring 44, the upper end of which bears on a block 34. The bias exerted by the spring is adjustable by varying the vertical position of the block 34. When the machine is not operating, the presser roll and its carriage can be raised well clear of the feed roll against the action of spring 44 by means of a piston and cylinder combination 60 acting through linkage 58-55, 48, 46, 52, 54. Air is supplied to the jet 69 from a pipe 66, via a heater (not shown), a valve 74 and pipe 64. The jet 69 is of narrow, elongated cross-section. The valve 74 may be operated by a piston and cylinder combination 88 acting through linkage 86-78 and 75 so that air is exhausted to atmosphere instead of flowing to jet 69. The adhesive film A is fed from a roll 92 to the nip between rolls 10 and 26 via guides 98 and 28. An edge gauge 102, Fig. 1 and Fig. 3 (not shown), the position of which relative to feed roll 10 is adjustable, is provided for assisting the manual guiding of a shoe upper (not shown). The film A may be based on ethylene/vinyl acetate copolymer. Upon starting the machine, a valve arrangement (not shown) ensures that the presser roll 26 is not lowered into its operative position until the air issuing from jet 69 has attained its operative temperature, about 94‹ C. At this temperature, the lower surface of film A is activated while the upper surface remains non-tacky. The presser roll 26 may be stepped to accommodate a fold in the shoe upper. The working surface 6, over which the shoe upper is moved, is covered with PTFE cloth. The adhesive film may be carried on a backing layer.
Patent GB-964602-A (GB)
Title: Pigments of the anthrapyridone series and the mass-coloration of artificial fibres
Inventor: IRVING FRANCIS
IPC: D01F1/10
Filed: 1961-12-14
Abstract: Polyacrylonitrile, acrylic copolymers, stereoregular polypropylene, polyhexamethylene adipamide, polycaprolactam and polyethylene terephthalate are spin-dyed in red to violet shades using pigments of the formula: <FORM:0964602/C3/1> wherein two of the Z's are hydrogen and the other two are groups of the formula: <FORM:0964602/C3/2> or <FORM:0964602/C3/3> where X is hydrogen, alkyl or aryl and Y is hydrogen, alkyl, cycloalkyl, aralkyl or aryl. The polyacrylonitrile and acrylic copolymers may be spun from a dimethylacetamide or aqueous alcoholic thiocyanate solution containing the finely divided pigment in dispersion. In examples (1) polyhexamethylene adipamide chip is coated with a mixture of a polyhexamethylene adipamide paste made as in Specification 839,712 and an aqueous paste of pigment and anionic dispersing agent and the chip dried, melted and spun; polycaprolactam may be similarly spindyed; (3) pigment and stereoregular polypropylene are ground, melted and spun; (4) an aqueous dispersion of pigment and anionic dispersing agent is mixed with finely-divided polyethylene terephthalate and coated on to polyethylene terephthalate chip which is melted and spun. Specifications 13686/07, 603,495, 847,959 and 895,657 also are referred to.ALSO:The invention comprises dyes of the formula <FORM:0964602/C4-C5/1> wherein two of the Z's are hydrogen atoms and the other two are groups of the formula <FORM:0964602/C4-C5/2> or <FORM:0964602/C4-C5/3> wherein X is hydrogen, alkyl or aryl and Y is hydrogen, alkyl, cycloalkyl, aralkyl or aryl, excepting 1 : 5 - bis - (31 - methyl - 111 : 911 - anthrapyridonyl 61 - amino) anthraquinone which is disclaimed.  The dyes are made by condensing appropriate polyhalogeno-anthraquinones with aminoanthrapyridines or polyaminoanthraquinones with halogenoanthrapyridones. The dyes colour synthetic fibres (see Divisions B5 and C3).  Specifications 13686/07, 603,495, 839,712, 847,959 and 895,657 are referred to.
Patent GB-1175558-A (GB)
Title: Improvements relating to Insulated Connectors
Inventor: STARTIN KENNETH JOHN
IPC: H01R43/00
Filed: 1967-10-03
Abstract: 1,175,558. Two-part couplings. AMP Inc. 13 Sept., 1968 [3 Oct., 1967], No. 44966/67. Heading H2E. A method of forming a multi-contact electrical connector involves inserting socket contacts 4 which have been crimped to the conductors of wires 5, in insulating sleeves 1 which are joined by a web 2. Each sleeve is then cold-crimped at 7 about a contact to retain the contact in the sleeve. Usually all the sleeves are crimped in one operation. A portion of the web 2 may be removed before crimping, allowing complete peripheral crimping of the sleeve. A two-part coupling according to the invention comprises two such connectors having sleeves and contacts of different diameters but having sleeves spaced the same distance apart allowing one connector to be inserted into the other. Connectors may be made from an insulating strip of indefinite length, portions of sleeves 1 being removed at intervals to define individual units into which contact-terminated wires are successively crimped, each unit being severed from the length at the time of crimping.
Patent GB-1528934-A (GB)
Title: Accumulator battery
IPC: H01M50/147
Filed: 1975-10-30
Abstract: 1528934 Battery cases COMPAGNIE EUROPEENNE D'ACCUMULATEURS 30 Oct 1975 [19 Nov 1974 1 July 1975] 45075/75 Heading H1B The plates of a battery are held in position by horizontal members 18 which are thermowelded to the case 1 or partitions in the case together with the cover 10. The members may be of T, or angle section, and they may extend across the battery in either direction (Figs. 2 to 5) in which case they have holes for electrolyte.
Patent GB-1123049-A (GB)
Title: 5-nitroimidazoles and process for their preparation
IPC: C07D233/94
Filed: 1965-10-25
Abstract: Novel 5-nitroimidazoles of the formulae <FORM:1123049/C2/1> <FORM:1123049/C2/2> <FORM:1123049/C2/3> <FORM:1123049/C2/4> <FORM:1123049/C2/5> (wherein R and R1 are C1- 7 alkylene radicals, X and X1 are H, halogen, a CF3, COOH, alkoxycarbonyl, CN, NH2, mono- or di-(C1- 6 alkyl)-amino, C1- 6 alkythio, alkylsulphoxy or alkylsulphonyl, CONH2, N-mono- or N,N-di-(C1- 6 alkyl)-carbamoyl, amidino or mono- or di-(C1- 6 alkyl)-amidino group or a group <FORM:1123049/C2/6> wherein Z is O, NH or CH2, but X and X1 are not both H, and R2 is a C1- 5 alkyl group), and their pharmaceutically acceptable acid addition salts, are prepared by performing one or more of the following:  (a) methylating 2-isopropyl-5-nitroimidazole or a compound of the formula <FORM:1123049/C2/7> (b) treating an imidazole having one of the formulae <FORM:1123049/C2/8> <FORM:1123049/C2/9> <FORM:1123049/C2/100> <FORM:1123049/C2/111> <FORM:1123049/C2/122> as follows:  (1) when Z is halogen, with an alkali metal cyanide, a C1- 6 alkylmercaptan (followed, if desired, by oxidation of the resulting thioether to a sulphoxide or sulphone), ammonia, or a mono- or di-(C1- 6 alkyl)-amine, (2) when Z is alkoxy, with HI (replacing alkoxy by I), (3) when Z is OH, with a phosphorus trihalide or oxyhalide or SOCl2 or with an oxidizing agent (to convert CH2OH to COOH), or (4) when Z is CN, with dry HCl gas and the product with ammonia, a mono- or di-(C1- 6 alkyl)-amine morpholine, piperazine or piperidine; (c) treating a nitroimidazole of the formula <FORM:1123049/C2/133> <FORM:1123049/C2/144> with a cyanoethylating agent; (d) treating a nitroimidazole of the formula <FORM:1123049/C2/155> with formaldehyde and the product with a halogenating agent, and in all cases, if desired, converting the products into pharmaceutically acceptable acid addition salts.  In an example of process (d), 1-trifluoromethyl-2-hydroxymethyl-5-nitroimidazole is formed as an intermediate.  The compounds of the invention may be made up into pharmaceutical compositions for oral, topical or parenteral administration in the treatment of trichomonal infections.  Reference has been directed by the Comptroller to Specifications 1,003,091; 1,067,387 and 1,094,773.
Patent GB-1321636-A (GB)
Title: Method of and apparatus for cleaning dairy and other installations
IPC: B08B3/00
Filed: 1970-09-22
Abstract: 1321636 Cleaning tanks DE DANSKE MEJERIERS MASKINFABRIK AmbA 22 Sept 1970 [ 25 Sept 1969] 45168/70 Heading A4F [Also in Division F2] In a method of cleaning apparatus arranged in a fluid circuit, such as part of a dairy installation, an amount of cleaning fluid sufficient to clean the circuit is drawn from a store and circulated in the circuit, and after circulation is returned to the store or discharged into a sump or drain depending on the degree to which it is contaminated. The tank K of a dairy installation is first rinsed with water pumped by a pump C from a tank A through pipe 2, valve a, pipe 3, a heat exchanger E, a pipe 11 and a distributor H controlling the supply of rinsing liquid to the tank K and other dairy equipment. The rinsing water is withdrawn from the tank K by a pump J and passed to a drain or a collecting tank via pipes 14 and 12, the heat exchanger E, pipe 4, valve c, pipe 6, and valve l. After rinsing the valve a is closed and a valve k opened so that cleaning liquid is passed from a storage tank L by the pump c to the tank K to clean it, and the pump J passes the liquid from the tank K towards the drain or collecting tank until a concentration gauge z indicates that the pipe 4 is filled with cleaning liquid. The valve k then closes and the three-way valve c changes its position so that cleaning liquid passes from the pipe 4 to the pipe 3 to be pumped in a closed circuit through the tank K for a desired cleaning period. During this circulation the cleaning liquid is heated by steam introduced via a valve P into the heat exchanger E . At the end of the cleaning period the valve a is opened so that rinsing water is supplied to the pipe 3 and the 3-way valves c, I change their positions so that cleaning liquid is passed from the pipe 4 to the tank L or, if the liquid is heavily contaminated to a drain. When the gauge z has indicated that water has displaced the cleaning liquid in the pipe 4, the 3-way valve l changes position to direct the rinsing water to the drain. Pumps u, v supply respectively, additional concentrated cleaning liquid to the system during the cleaning operation, and disinfecting liquid during the final rinsing operation.
Patent GB-1277488-A (GB)
Title: Discharge head for a metallizing device
IPC: C23C4/12
Filed: 1969-11-03
Abstract: 1,277488 Metal spraying FLAME-SPRAY INDUSTRIES Inc 3 Nov 1969 [7 Nov 1968] 45303/71 Divided out of 1277487 Heading B2F In a discharge head for an electric arc metallising gun in which an arc is struck between two wires continuously advanced to an arc zone through guides in electrodes 15 and 16, a gas discharge nozzle 94 blows the molten metal in a spray from the arc zone, the head having a shield mounted against spacer lugs 85 and 86 giving access for atmospheric air between the shield and the rest of the discharge head, which air is induced into the space 93 such that it contains the spray of metal by providing an annular stream around it.
Patent GB-1460268-A (GB)
Title: Method for enhancing the atmospheric leaching of nickeliferous matte
IPC: C22B3/08
Filed: 1975-10-31
Abstract: 1460268 Nickeliferous matte AMAX Inc 31 Oct 1975 [26 Dec 1974] 45344/75 Heading C1A A nickeliferous sulphide matte in acid solution is treated by esablishing a bath of molten matte having by wt. 30-75% Ni, up to 50% Cu, up to 10% Co, 4-25% S, up to 5% iron, the nickel, copper, sulphur and when present, Co content being at least 90% of the matte, and the amount of sulphur being less than the stoichiometric quantity for combination with the metals and not more than the amount required to form Ni 3 S 2 , the molten matte being at least 100 C. above the liquidus solidus (L.S.) temperature of the matte composition, lowering the temperature to from 50 C. above to 100 C. below the L.S. temperature, granulating and quenching, comminuting the granulated matte, and subjecting the comminuted matte to atmospheric leaching in hot acid solution containing free sulphuric acid.
Patent GB-1100039-A (GB)
Title: Apparatus for constructing bridge spans of ordinary or prestressed reinforced concrete in situ
IPC: E01D21/00
Filed: 1965-10-26
Abstract: 1,100,039. Shuttering for casting bridges. M. FIORETTO. 26, Oct, 1965 [31, Dec, 1964], No. 45374/65. Heading E1S. Shuttering for casting bridges comprises a frame extending forwardly from the completed span to overhang the next pier on which it is supported by jacks, the overhanging part being counterbalanced by the part on the completed span and has a working surface and cover 1<SP>1</SP>for weather protection. Longitudinal mcmlbems 2 of the frame are connected by members 3 supporting the working surface and cove 1<SP>1</SP>.The bottom 9 of the mould is formed of two parts pivoted to the frame at 9<SP>1</SP>each consisting of two parts pivoted together at 9". These parts hang vertically when the shuttering is moved forward on rollers. Mould parts 5 normally kept in chambers 4 are lowered by winches 11 into position for casting a bridge span and held in position by members 15 suspended from the members 2. Skips 16 for concrete are carried along rails 7 on members 6 adapted to be pivoted out of the way when necessary. The cast span is hardened by steam in closed chambers formed by closing down flaps forming hand rails for catwalks 10 and opposite mating flaps.