baber/WOPTO huggingface dataset:
Patent GB-1202840-A (GB)
Title: Gas turbine heat exchange system using flexible locating members for torque tranmission
IPC: F28D19/04
Filed: 1969-08-08
Abstract: 1,202,840. Thermal regenerators. FORD MOTOR CO. Ltd. 8 Aug., 1969 [29 Aug., 1968], No. 39802/69. Heading F4K. A ceramic regenerator core 22 rotatably mounted in a gas turbine engine is rotated by a drive arrangement consisting of an annular ring gear 34 which is coupled to the regenerator core by means of a plurality of spaced locating members designed to permit slight relative radial and axial movement while preventing tangential movement between the core and the ring gear. As shown in Fig. 1, the locating members are formed by U-shaped leaf springs 40 which fit into a peripheral groove 30 the bottom of which is made up of flat portions 32. Tn an alternative embodiment, Fig. 4, the locating members each comprise a pad 70 of a high temperature elastomer having a steel plate 72 bonded to one side. The plate 72 has a semicircular groove 74 which extends parallel to the rotational axis of the core 22<SP>1</SP> and cooperates with a corresponding groove 76 formed in the inner surface of the ring gear 34<SP>1</SP>; steel balls 78 are located in the grooves. Short slots (80, Fig. 5, not shown) cut into the corners between the adjacent flat portions of the outer periphery of the core serve to relieve thermal stresses. A solid ceramic rubbing seal 18, e.g. of a nickel oxide-calcium fluoride combination, is located on top of an inner housing 14 which is divided into passages 16, 17. A metal foil seal 58 is welded to the top of a D-shape seal 56 located above the passage 17. In use cool air from a compressor flows up through a surrounding passage 13, through the core 22 and then down through passage 16. Hot combustion gases flow upwardly through passage 17.
Patent GB-1144615-A (GB)
Title: Power transmission hydrocarbon oil
IPC: C10M105/06
Filed: 1967-08-31
Abstract: 1,144,615. Hydrocarbon power transmission oil. U. B. BRAY, and E. L. BRAY, [trading as BRAY OIL CO.]. 31 Aug., 1967 [8 Nov., 1966], No. 39867/67. Headings C5E and C5F. A synthetic hydrocarbon power transmission oil consisting predominantly of dialkyl benzenes, prepared by the alkylation of benzene with a chlorinated normal C 10 - C 13  paraffin and fractional distillation of the product, has the following characteristics : gravity API 28-33 ; viscosity-centistokes at 100‹ F., 20-30, centistokes at 200‹ F., 3À8-4À9 ; viscosity index 70-100; flash point above 400‹ F. pour point (ASTM) below -70‹ F.; boiling range 650- 760‹ F. The alkylation may be effected at 30- 150‹ F. in the presence of alkylation catalysts such as AlCl 3  and HF. The power transmission oil fraction may be purified and decolorized in one or more of the following steps: SO 3  treatment followed by washing and neutralization ; extraction with a selective solvent such as furfural, phenol or dichloroethyl ether; contact with an absorbent earth. The oil may comprise by wt. Dialkyl benzene 40-60% Dialkyl tetralin 15-25% Dialkyl diphenyl 10-15% Unidentified hydrocarbons 10-17% Optional additives to the transmission oil include phenolic antioxidants (e.g. ditertiary butyl phenol, polybutylated bisphenol A, octylated diphenyl amines, alkylphenol ethers, zinc dialkyl dithiophosphate, and 2,6-ditertiarybutylparacresol), tricresyl phosphate, an oil soluble polymer viscosity index improver of M.W. 10,000-20,000, and polybutene. The oil may be blended with compatible fluids such as natural petroleum oils, di-2-ethyl hexyl sebacate, trimethylol propane pelargonate, pentaerythritol heptonoate, polyphenyl ethers, hexyl dicresyl phosphate, silicate esters and silicones.
Patent GB-944671-A (GB)
Title: Hydro-pneumatic suspension units
Inventor: POWELL GEORGE BERTRAM
IPC: F16F9/096
Filed: 1961-11-08
Abstract: 944,671. Hydro-pneumatic suspension units. GIRLING Ltd. Nov. 8, 1962 [Nov. 8, 1961], No. 39927/61. Heading B7D. [Also in Division F2] A self-levelling hydropneumatic suspension unit comprises a pressure chamber 11 divided by a diaphragm 12 or equivalent member into an air or gas space 13 and a liquid space 14 and extending from the pressure chamber 11 a concentric sleeve 18 and reservoir 22 between which is an annular space A within which the cylindrical wall 19 of cup shaped piston 27 slides. On outward movements of piston 27 liquid passes from the reservoir through port 34, annular space 33 (Fig. 2) between the inner reservoir wall 21 and wall 19 of piston 27, through a series of passages 31 in the piston wall and a corresponding series of holes 36 in valve plate 35 into space A. The valve plate 35 is slidably mounted on two or more pegs 37, the holes 36 in the plate (Fig. 3) being offset from the passages 31 so that the plate acts as a oneway valve. On inward movements of the piston liquid in space A is pushed past valve disc 39, loaded by conical spring 40, into space 14 to lengthen the unit until piston wall 19 uncovers port 42 when liquid can pass directly from space 14 through the parts 43 and 42 into the reservoir thus limiting the length of the unit. Liquid volume changes in the reservoir are compensated for by flexible and compressible cellular bag 44. In a modification the valves 35 and 39 allow limited reverse direction flow.
Patent GB-1517558-A (GB)
Title: Polyethylenic silicon compounds
IPC: C08F30/00
Filed: 1975-09-30
Abstract: 1517558 Unsaturated bis-silanes RHONE POULENC INDUSTRIES 30 Sept 1975 [1 Oct 1974 11 Feb 1975] 40056/75 Heading C3S Novel silanes have the general formula wherein each n is 1, 2 or 3; each R is a C2-10 ethylenically unsaturated group; each R<1> is an alkyl, haloalkyl or cyanoalkyl group or an optionally halogenated aryl or alkaryl group; each R<2> is a C1-4 alkylene group; each X is -O- -S- or -NR<5>, or -CO-O-, -CO-S, -CS-O-, -CS-S- or CO-NR<5> linked to R<2> via N, O or S (R<5> being H or C1-4 alkyl); each F has 1-30 C atoms and is (i) an optionally chlorinated divalent aliphatic cycloaliphatic or aromatic radical or a divalent O-, S- or N-containing heterocyclic group, or a chain of such groups linked directly or via -O-, -S-, -NR<6>-, -CONR<6>-, -CO-, -COO-, -SO2, -N=N-, or -PO(R<6>)- (R<6> being C1-4 alkyl, cyclohexyl or phenyl, or, on N, H) or (ii) a benzene-, naphthalene- or pyridine - triyl radical or -C6H4-E-C6H3= (E being a direct bond or C1-4 alkylene or alkylidene, -O-, -CO-, -COO-, -SO2 or -CONH-), in which one valency is attached to X and the other two to the -CO- groups of T below when T is -CO-N-CO-; and each # is wherein R<3> is H or C1-6 alkyl, R<11>, R<111>, and R<1111> are di, tri- and tetra-valent organic groups, an T is -CO-O-, -CO-S-, -NH-CO-O-, -NH-CO-S-, -CO-NR<3>- or when # is divalent and when r is trivalent. They may be made by reaction of one or more silanes wherein Y is -OH, -SH, -NCO, -COCl, -COOR<5>, -NHR<3> attached to divalent #, or attached to trivalent #, with a compound COCl2, H2O, R<11>Y2, as appropriate. In the examples the silane ViMe2SiCH2O-C6H4-NH2 is reacted with [1] terephthaloyl chloride, [3] pyromellitic anhydride or [4] diphenylmethane diisocyanate; the silane ViMe2SiCH2O-CO-C6H4NH2 is reacted with [6] terephthaloyl chloride; the silane ViMesSiCH2O-C6H4-COCl is reacted with [2] methylene dianiline, [5] di-hydroxyethyl terephthalate, [7] O[SiMe2-CH2CH2CH2O-C6H4-NH2]2, [20] CH2[C6H4-NHCO-C6H4-NH2]2, [21] p-C6H4[COO-C6H4-NH2]2, [22] H2N-C6H4-COO-C6H4-NH2, and [23] p-C6H4(NH2)2; and the silane Vi2MeSiCH2O-C6H4-COCl is reacted with [24] methylene dianiline.
Patent GB-941903-A (GB)
Title: Process for the recovery of pure phthalic anhydride from the crude product obtained by the oxidation of o-xylene
Inventor: SUTER HUBERT
IPC: C07C51/573
Filed: 1961-11-10
Abstract: Crude phthalic anhydride, obtained by the oxidation of o-xylene, is purified from maleic acid and water by distilling off 5 to 25% by weight of the crude material at a pressure of 20 to 200 mm.  Hg and a still-temperature not exceeding 225  DEG C., and then distilling over pure phthalic anhydride at such a reduced pressure that the still-temperature does not exceed 200  DEG C.  A tarry residue, comprising about 2 to 8% by weight of the crude material, remains behind as distillation-residue.
Patent GB-856527-A (GB)
Title: Improvements in coating compositions
IPC: C08F2/44
Filed: 1958-12-15
Abstract: Pigmented coating compositions having a pigment volume concentration of 8-80% are prepared by (A) forming a mixture containing (1) water (2) one or two of the monomers, methacrylic esters of saturated aliphatic monhydroxy alcohols having one to four carbon atoms, acrylonitrile, vinylidene chloride, styrene and butadiene or one or two of the monomers acrylic or methacrylic esters of saturated aliphatic monohydroxy alcohols having one to four carbon atoms, acrylonitrile, vinylidene chloride, and vinyl esters of saturated aliphatic monocarboxylic acids of two to four carbon atoms or a copolymer of one of the monomers from the second group with one of the monomers vinyl esters of saturated aliphatic monocarboxylic acids of five to eight carbon atoms, acrylic or methacrylic esters of saturated aliphatic monohydroxy alcohols of five to ten carbon atoms and maleic or fumaric diesters of saturated aliphatic monohydroxy alcohols of one to ten carbon atoms, (3) an aqueous pigment dispersion, (4) a wetting agent, (5) a protective colloid, (6) a water-soluble salt of persulphuric acid, (7) at least one water-soluble compound of the group consisting of salts of oxyacids of sulphur and addition compounds thereof with an aldehyde, (8) a water soluble iron salt and (9) a sequestering agent, identical with or compatible with the wetting agent, capable of forming a complex with iron cations (B) agitating the mixture at below its refluxing temperature while polymerization occurs, and (C) adjusting the proportion of monomer in the mixture to form an aqueous pigmented coating composition having a pigment volume concentration of between 8 and 80%.  The polymerizable constituent may be added in two portions, the second portion ranging between 70/30 and 30/70 of the first portion by weight, at temperatures below the refluxing temperature of the mixture.  The oxidizing and the reducing agent may be added in two portions, the second portion being added after all of the polymerizable constituent has been added.  Specified monomers and mixtures used in the examples are vinyl acetate, vinyl propionate, butyl acrylate, styrene, acrylonitrile, methyl methacrylate, vinylacetate mixed with butyl or decyl acrylate, or dibutyl fumarate or vinyl propionate or vinyl-2-ethyl-hexoate, or vinylidene chloride, styrene-butadiene, and butyl acrylate-vinylidene chloride.  The wetting agent may be the condensation product of ethylene oxide with the reaction product of propylene oxide and propylene glycol, the protective colloid may be hydroxyethyl cellulose, and the catalyst system comprises potassium persulphate, sodium formaldehyde sulphoxylate, sodium pyrophosphate (sequestering agent) and either ferrous sulphate or ferric chloride.  Other sequestering agents are sodium hexametaphosphate and sodium silicate.  Specified pigments are titanium dioxide, iron oxides, lithopone, zinc sulphide and calcium extended titanium pigments.
Patent GB-1191266-A (GB)
Title: Solenoids for use in Engine Starting Mechanism
Inventor: ZAGRZJEWSKI MIECZYSLAW
IPC: H01H51/06
Filed: 1966-09-09
Abstract: 1,191,266. Electromagnetic switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 22 Aug., 1967 [9 Sept., 1966], No. 40309/66. Heading H1N. An attracted-armature plunger type electromagnetic switch is coupled to a lever, which serves to engage and disengage a pinion and toothed wheel for motor starting, one end of the lever being trapped between a part of the plunger armature and a spring-biased part slidable on the plunger. As shown, the plunger armature 13 is moved when a coil 12 is energized and drives a shaft 21 so that a bridging contact 26, resiliently mounted on the shaft 21 engages a pair of fixed contacts 31. The armature 13 is biased by a spring 19 which acts on a part 18 to urge it against a sleeve 17 which engages a washer 16 secured in the end of the stem 15 of the plunger. A spring 30 between the plunger body and the part 18 also urges the part against the lever (not shown) which is normally retained between the part 18 and washer 16, to allow lost-motion if the pinion and wheel do not interengage.
Patent GB-899578-A (GB)
Title: Improvements in or relating to electrical insulators
Inventor: LUCAS DOUGLAS HAROLD
IPC: H01B17/32
Filed: 1958-12-15
Abstract: 899,578. Insulators. CENTRAL ELECTRICITY GENERATING BOARD, LUCAS, D. H., OAKESHOTT, D. F., and FORREST, J. S. Oct. 2, 1959 [Dec. 15, 1958], No. 40406/59. Drawings to Specification. Class 36. Insulators for suspending overhead line conductors have a conductive path thereon which is so designed as to generate sufficient heat in still ambient air to raise the temperature of the surface to at least 10‹ C; above its surroundings when a voltage of at least 3 kv. per inch is applied. A helical conductive path is applied by spraying, e.g. graphite, on to glass fibre rod provided with sheds of conical or bowlshaped form which may be of insulating material or metallic. A protective coating such as resin may be applied over the graphite.
Patent GB-1431409-A (GB)
Title: Papaverine and ethaverine salts and compositions containing them
IPC: C07D217/24
Filed: 1974-09-17
Abstract: 1431409 Papaverine and ethaverine salts SOC D'ETUDES ET D'EXPLOITATION DE MARQUES ET BREVETS 17 Sept 1974 [19 Sept 1973] 40437/74 Heading C2C [Also in Division A5] The novel salts of Formula I wherein R is methyl or ethyl are prepared from aspirin and papaverine or ethaverine.
Patent GB-1107970-A (GB)
Title: Process for the preparation of chlorosilanes
Inventor: FAUCHE PAUL CHARLES
IPC: C07F7/20
Filed: 1966-09-09
Abstract: Chlorosilanes are separated from mixtures with solid or tarry particles, produced by reacting mono-chlorinated hydrocarbons with silicon, by distilling in a thin film evaporator. The apparatus preferably consists of a vertical heated cylinder into which the liquid reaction products are allowed to enter at the top before being distributed in a thin film, a few tenths of a millimetre thick, by rotating "doctor" blades carried on a vertical shaft. The liquid film evaporates rapidly, the most volatile fractions being removed at the top of the apparatus whilst the heavier constituents and solid products collect at the bottom where they are removed in the form of a free-flowing powder. Examples of mixtures which are treated in this way include the reaction products of chlorobenzene, HCl and Si (Cu catalyst), and of MeCl with Si/Cu alloy; these mixtures may be stripped of the most volatile fractions before introduction into the rotary evaporator.
Patent GB-1468294-A (GB)
Title: Electrolytic copper stainproofing process
IPC: C25D11/38
Filed: 1974-09-18
Abstract: 1468294 Copper foil laminates YATES INDUSTRIES Inc 18 Sept 1974 40684/74 Heading B5N [Also in Division C7] Cu foil, previously electrolytically treated in a Cr(VI)-containing bath (see Division C7) is laminated by means of a copolytetrafluoroethylene-hexafluoropropylene or epoxy adhesive to a PTFE/fibreglass, trifluorochloroethylene polymer/fibreglass or polyimide (pyromellitic anhydride-aromatic diamine derived) substrate, and is used in this form to make printed circuits.
Patent GB-1009978-A (GB)
Title: Installation for supplying gas to a blast furnace or the like
IPC: F02C3/24
Filed: 1963-10-16
Abstract: 1,009,978. Gas turbine plant. UNITED AIRCRAFT CORPORATION. Oct. 16, 1963 [Oct. 31, 1962], No. 40752/63. Heading F1G. [Also in Division F4] The invention relates to an installation for supplying gas under pressure to a blast furnace and comprising a gas turbine engine having a main compressor and a turbine which drives the compressor. In accordance with the invention a part of the air discharging from the main compressor to the air inlets of the blast furnace passes through an auxiliary compressor to an oxygen producing plant, the oxygen passing from the oxygen plant in part to a combustion chamber to be mixed with compressed fuel for driving the turbine, and in part into the air from the main compressor conducted to inlets of the blast furnace. The plant shown comprises a main air compressor 4 which is driven by a turbine 6, a portion of the air delivered by the compressor passing through line 10 and air preheater 14 into the inlets of the blast furnace 2. The remaining portion of air from the compressor 4 passes through line 16 to an auxiliary compressor 18, the air at increased pressure passing through line 28 to the oxygen producing plant 8, the oxygen produced passing through line 12 where it mixes with the air from the compressor 4 passing through line 10, the air and oxygen passing through the preheater 14 referred to. A portion of the oxygen produced in the plant passes through line 36 to the combustion chamber 32 to which fuel gas from the compressor 34 is also supplied, the resulting combustion gases passing through line 44 to the turbine 6. The turbine exhaust gases pass through line 46 to the air pre-heater 14 and thence discharge to atmosphere. The blast gas from the blast furnace which gas contains combustible components passes through the gas cooling and cleaning device 40 before passing into the fuel gas compressor 34. The compressor 34 is also driven by the turbine 6.
Patent GB-1244632-A (GB)
Title: Tape wrapper
IPC: H01B13/08
Filed: 1968-08-27
Abstract: 1,244,632. Wrapping cores. W. L. GORE & ASSOCIATES Inc. 27 Aug., 1968 [7 Sept., 1967], No. 40809/68. Heading B8G. A tape which is used to spirally wrap a conductor is uniformly elongated whilst being fed to the conductor. As shown, the tape 34 is uniformly elongated by advancing the conductor 101, producing a relative rotation between the tape and conductor and controlling these rates so as to uniformly elongate the tape as it is passed to the conductor. The elongation of the tape can be controlled by a pair of pinch rollers 27 which are driven from tube 14. The latter together with tube 26 is used to rotate the conductor during wrapping. The conductor is wound from reel 10 to reel 19 and is driven longitudinally by capstan 15. The reels 10 and 19 are balanced by brakes 20 and 21. Preferably the reels, conductor, tape elongation device and conductor advancing capstan are all driven from a common power source 25, as shown. The conductor can be supported at the point of being wrapped with tape (see Fig. 4, not shown). In an alternative arrangement the tape spool &c. is rotated about a non-rotating advancing, wire.
Patent GB-1249970-A (GB)
Title: Improved rotary dump coupler with shank wear plate
IPC: B61G7/00
Filed: 1970-08-25
Abstract: 1,249,970. Coupler shank wearplate. AMSTED INDUSTRIES Inc. 25 Aug., 1970 [11 Dec., 1969], No. 40875/70. Heading B7T. In a rotary coupler shank, a bottom surface 24 has an elongated recess 22 in which is located a substantially rigid rectangular flat wear plate 20 with a wearing surface 21 which is substantially tangential to curved surfaces 31 of constant curvature adjacent the lower portions of side surfaces 30, the thickness of the wearplate 20 being substantially equal to the depth of the recess 22. The wear plate is retained in place by a continuous or intermittent welded joint 28 along the longitudinal sides of recess 22.
Patent GB-1142893-A (GB)
Title: Direct coupled differential transistor amplifier with improved offset voltage temperature coefficient and method of compensation
IPC: H03F3/45
Filed: 1966-09-14
Abstract: 1,142,893. Transistor amplifying circuits. BECKMAN INSTRUMENTS, Inc. 14 Sept., 1966 [18 Oct., 1965], No. 41072/66. Heading H3T. In a direct coupled differential amplifier having at least an input stage including two differentially connected transistors, a resistive network is connected between a voltage point which varies linearly with temperature at a different rate than the voltage level of the collectors in the input stage, and at least one of the collectors of the input stage, having the proper value to provide sufficient collector current imbalance in the input stage proportional to temperature to compensate for any differential input offset voltage with temperature. In an amplifier as otherwise described in Specification 1,142,894, the emitter currents in the first differential stage 104, 106 are first adjusted for equality, at a standard temperature, by means of potentiometer 132, and then variable resistor 114 in one emitter circuit is adjusted so that the base-emitter voltage drop in transistor 104 plus the voltage drop in resistor 108 is equal to the corresponding drop in transistor 106 plus that in resistor 114. Next a potentiometer 290 in the diode chain is adjusted so that the voltage at its slider is equal to the collector voltages of transistors 104, 106; there is then no current in resistor 292 and the position of the slider of potentiometer 294 is immaterial. The temperature is changed, differential changes in the voltage drops causing current to flow in resistor 292, and the slider of potentiometer 294 is adjusted to give zero offset. Potentiometers 298, 300 connected across part of the diode chain supply base currents to transistors 104, 106 respectively and are adjusted so that negligible standing currents are taken from the input terminals.
Patent GB-1282270-A (GB)
Title: Improvements in cylinder lock constructions
IPC: E05B29/00
Filed: 1970-08-26
Abstract: 1282270 Locks G MERTEN and W MERTEN [trading as MERIT-WERK MERTEN & CO KG] 26 Aug 1970 [28 Aug 1969] 41131/ 70 Heading E2A  A lock has a housing 10, Fig. 8, having a lock cylinder which is made of synthetic plastics material and is rotatably mounted therein, the latter comprising a cylindrical main body portion 1, Fig. 2, or comprising a cylindrical main body portion having a number of individual sections 11, Fig. 5. The main body portion 1 is integrally formed with at least one spring portion 3 and with at least one tumbler portion 4. An axially extending key passage 2 is formed in the portion 1, the spring portion 3 is a leaf spring, and the tumbler portion 4 is provided with a recess 4b Fig. 3, which, when the tumbler portion 4 is assembled in the body portion 1 as shown in Fig. 4, coincides with a passage 2. The recess 4b may be bevelled, for example, at 4a, Fig. 3, to facilitate the insertion and removal of a key. The sections 11, Fig. 5, are each formed integrally with an associated spring portion 3 and with an associated tumbler portion 4, and the sections 11, Fig. 7, are each coupled at 7 to a spring portion 3 having an integral tumbler portion 4. The sections 11, having apertures 6 therein, are connected together and to end pieces 12, 13, Fig. 8, by a pin 14. The end piece 12 has a flange 15 which abuts the housing 10 and the end piece 13 has a groove formed therein which receives a circlip 16, the latter preventing withdrawal of the assembly by abutting a flange 17 of the housing 10. When the key 19 is inserted, the tumbler portions 4 are withdrawn from a groove 18 formed in the housing and allow the lock cylinder to be rotated. The tumbler portions 4 are blocked outside the grooves 18, 20 by the inner surface of the housing 10 and prevent removal of the key.