baber/WOPTO huggingface dataset:
Patent GB-1165174-A (GB)
Title: 3-Substituted Methylene-Steroids and Process for their Manufacture
IPC: C07J75/00
Filed: 1966-08-22
Abstract: 1,165,174. 3 - Carboxymethylene - steroids. FARBWERKE HOECHST A.G. 22 Aug., 1966 [21 Aug., 1965(2)], No. 37583/66. Heading C2U. The invention comprises (a) a process for preparing a 3-esterified carboxy)-methylene steroid of the androstene, estrane or pregnane series by reaction of a 3-oxo-#4- or -#4,6-steroid with a compound of formula in which R 3  is methyl or ethyl and R 4 <SP>1</SP> is a C 1-12  saturated or unsaturated aliphatic, cycloaliphatic or araliphatic hydrocarbon group in the presence of an anhydrous base and in an anhydrous organic solvent, followed if desired by esterification of any hydroxyl groups, and (b) the products of formulae wherein R 1 <SP>1</SP> is a #-hydroxy or acyloxy group, a (#-hydroxy-α-methyl or ethyl) group, a (#-hydroxy or acyloxy-α-vinyl or ethynyl) group, a carbony or etherylenedioxy group, a (#-COCH 3 -α-H, -OH, -O Alk or -OCO Alk) group, a (#-CH 2 OH or -CH 2 O Acyl- α-OH) group or a group. Alk having the same meanings as R 4 <SP>1</SP> above, R 2 <SP>1</SP> is a hydrogen, fluorine or chlorine atom or a methyl or ethyl group, R 3 <SP>1</SP> a hydrogen atom or a methyl group, R 4 <SP>1</SP> is as defined above, R 6 <SP>1</SP> represents a 9(<SP>11</SP>) double bond, two 11-hydrogen atoms, an 11 #-hydroxy or keto group or the 11 #-hydroxy-9 α-fluoro grouping, and R<SP>1</SP> 8  is a hydrogen atom or a methyl group or in combination with R 2 <SP>1</SP> forms a 6α, 7α- oxido-group. The compounds of the invention have gestagenic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration.
Patent GB-1482990-A (GB)
Title: Secondary air supply control device
IPC: F01N3/22
Filed: 1974-08-28
Abstract: 1482990 Controlling air supply to exhaust gas systems NISSAN MOTOR CO Ltd 28 Aug 1974 [4 Sept 1973] 37655/74 Heading B1W A secondary air supply control device for the exhaust gas cleaning system of an i.c. engine is interposed between the intake system 11 and the exhaust gas purifying system 24 comprises an air pump 30 which generates secondary air under pressure in first conduit 40, a pressure control valve 44 interposed between 40 and the air pump inlet conduit 36 via drain conduit 60, a second conduit 42 connecting the first conduit and the exhaust gas system 24, and a control valve 74 in said second conduit which controls the flow of secondary air into 24 in accordance with the flow of air taken into the engine. Control valve 44 annuls the influence of engine speed when air pump 30 is driven by the i.c. engine and comprises first and second chambers 50 and 52 divided by flexible diaphragm 48 having a valve member 62 mounted thereon which is seatable on 56 to close drain part 58, and biasing means 64 (e.g. a helical spring) which urges 62 onto seat 56. Chamber 52 may communicate via conduit 66 with a vacuum source such as air intake conduit 16 downstream of the throttle valve 20. A valve 68 may be provided in conduit 66 which may be operated by means 70 (e.g. solenoid) in response to sensor 72 programmed to detect abnormal conditions of the exhaust gas. The control valve 74 may be operated in response to engine intake air flow via a mechanical linkage 94 with the throttle valve 20 or (Fig. 2-not shown) via an air pressure linkage with the air intake venturi.
Patent GB-1172920-A (GB)
Title: Improvements in or relating to Hydraulic Apparatus
Inventor: STUHR HANS-WALDEMAR
IPC: F16H61/42
Filed: 1967-08-16
Abstract: 1,172,920. Hydrostatic transmissions. LINDE A.G. 16 Aug., 1967, No. 37670/67. Headings F2C and F2D. In a hydrostatic transmission comprising a variable-capacity pump 4 and one, or more, variable-capacity motors 10, of the piston-andcylinder tilting-head type, the pump-head 4 is pivotable, relative to a drive shaft 1, about an axis 5, and the motor-head is pivotable about an axis 11 at right-angles to the axis 5, the pump and motor being connected by a link 8 so that when the pump is in its zero-delivery position, the motor is in its maximum position and the centres of the joints 7 and 9 connecting the link 8 to the pump and motor respectively lie in a common plane with the pump pivot axis 5. The driven shaft 13 may be at right angles to the drive shaft 1 or, Fig. 2 (not shown), parallel thereto. When two motors are included in the transmission, e.g. for vehicle transmissions, each motor may be connected to the pump by an individual link 8, or a common link may connect both motors to the pump, the motor-driven shafts lying at right angles to the drive shaft, or their projections on the plane passing through the drive shaft and tilt axis 5, being at right angles to the drive shaft. A universal joint 9 connects the link 8 and motor, and, either a similar joint 6, 7, or a joint with a pivot pin which lies parallel to the pivot axis 5, connects the link 8 and pump 4.
Patent GB-871259-A (GB)
Title: High frequency switching unit
IPC: H01P1/12
Filed: 1959-11-09
Abstract: 871,259. Interrupters. DON-LAN ELECTRONICS Inc. Nov. 9, 1959 [Nov. 20, 1958], No. 37924/59. Class 38 (5). [Also in Group XL (b)] A high-frequency coaxial line switch comprises a hollow conductive body 11 to which three or more coaxial connectors, e.g. 12, 13, 14 are attached, the output connectors, e.g. 13, 14 being intermittently brought into conductive contact with the input connector 12 by means of sliding contactors 25, 26. These consist of insulating sleeves surrounding conductive split sleeves 31, 33 which slide upon the inner conductors 35, 36 of the output connectors and are urged into conductive contact with the fixed inner conductor 24 of the input connector by springs 29, 30. The sliding contacts are actuated in turn by an insulating roller 22 mounted eccentrically at the end of a motor shaft 18. The diameter of the roller may be such that both sleeves 31, 33 contact the inner conductor 24 simultaneously as it passes from one to the other, thus affording a make-before-break switching action. Alter-- natively, the roller may be dimensioned for a break-before-make action. The dimensions of the springs 29, 30 are such that, when in the expanded (closed circuit) position, they form a matched coaxial line section with the corresponding inner conductors 35, 36 and when compressed they present a mismatch. The insulated contactors 25, 26 may carry outer conductive sleeves (not shown). In this case, the roller 22 is made of conductive material and is arranged to shortcircuit the inner sleeves 31, 33 to the outer (earthed) sleeves. To eliminate mechanical chatter, the inner conductor 24 may be provided with spring contacts (not shown) which cushion the engagement of the sleeves 31, 33 with the conductor. The interior of the switch may be filled with dielectric oil.
Patent GB-1279703-A (GB)
Title: Improvements in or relating to acrylic polymer compositions
IPC: C09D133/06
Filed: 1969-07-29
Abstract: 1279703 "See-through" acrylic polymer compositions SYBRON CORP 29 July 1969 [8 Aug 1968] 38093/69 Heading C3P "See-through" acrylic polymer compositions comprise the reaction product of (a) 7-25% by weight of acrylic and/or methacrylic acid, (b) 35-93% of at least one alkyl acrylate or methacrylate, (c) 0-30% of styrene or a mono- or di-alkyl derivative thereof and (d) 0-15% of acrylonitrile, wherein components (a) to (d) are reacted at 70-95‹ C. in the presence of lauryl mercaptan or other chain transfer agent and to the polymer reaction product is added an aqueous water-soluble base to adjust the pH of the composition to 7À5-10À0. The reaction product can be formulated into a "see-through" aqueous protective coating composition of pH 7À5-10À0 comprising (a) 50-100 parts by weight of the reaction product, (b) 0-50 parts by weight of an alkali-soluble resin, (c) 0-3 parts by weight of a halofluorocarbon resin, (d) a coalescing agent in an amount of 0-30% by weight of polymer and resin solids, and (e) a plasticizer in an amount of 0-30% by weight of polymer and resin solids. The polymer reaction product is preferably prepared in aqueous emulsion using a catalyst system comprising ammonium persulphate, cumene hydroperoxide, sodium formaldehyde sulphoxylate and, optionally, diisopropylbenzene hydroperoxide. The reaction product may be converted to metal carboxylate form by treatment with a salt, e.g. Zn(NH 4 ) 2 CO 3  to produce a zinc carboxylate form. In the protective coating compositions the alkali-soluble resin may be a styrene-maleic anhydride resin, and a polyethylene or wax emulsion may also be included. Coalescing agents specified are Carbitol, methyl Carbitol, mono- or di-ethylene glycol, ethyl or methyl Cellosolve, 2-pyrrolidone and N-methyl-2-pyrrolidone ("Carbitol" and "Cellosolve" are Registered Trade Marks). Triethoxyethyl phosphate and tributyl phosphate are examples of plasticizers.
Patent GB-939682-A (GB)
Title: Substituted malonic acid dinitriles
IPC: C07D295/12
Filed: 1961-10-25
Abstract: N-substituted aminomalonic acid dinitriles are prepared by reacting 1 mol. of an N,N,N1,N1- tetrasubstituted formamidinium salt with at least 2 mols. of anhydrous hydrocyanic acid.  Preferred N,N,N1,N1-tetra-substituted formamidinium salts have the formula:- <FORM:0939682/IV(a)/1> in which R and R1 separately represents aliphatic, cycloaliphatic or aromatic radicals which may be substituted by alkyl or alkoxy groups, chlorine or bromine or in which a group R together with an adjacent group R1 represent a C4-5 alkylene bridge in which one methylene group can be replaced by O, N or S, and X represents an anion such as that derived from hydrochloric, hydrobromic, hydroiodic, chloric, iodic, perchloric or sulphuric acid.  The process yields amine salts as by-products. p N,N,N1,N1- Bis- (pentamethylene)- formamidinium chloride is prepared by heating excess of tetramethyl formamidinium chloride with excess piperidine.  N,N,N1,N1- Bis- (3- oxapentamethylene)-formamidinium chloride is prepared by reacting N-formyl morpholine with chloroformic acid-3-oxapentamethylene amide.  Chloroformic acid- 3- oxapentamethylene amide is prepared by reacting N-methyl morpholine with phosgene in boiling benzene.
Patent GB-930255-A (GB)
Title: Golf practice ball substitute
IPC: A63B69/36
Filed: 1961-10-25
Abstract: 930,255. Balls. A. T. HUNTER. Oct. 25, 1961, No. 38242/61. Class 132 (2). A substitute for a ball for golf practice comprises a light-weight cylinder of rigid material, such as expanded polystyrene, with ratio of length to diameter within the range threequarters to one and three quarters. The shape may be slightly barrel-shape or with ends bevelled, and may be provided with dimples or have longitudinal concentric or crossed grooves therein.
Patent GB-906975-A (GB)
Title: Bearing for rotating bodies in particular in balancing machines
IPC: F16C27/02
Filed: 1958-11-27
Abstract: 906,975. Yielding bearing supports. AVERY Ltd., W. & T. (Schenck Maschinenfabrik G.m.b.H., Carl). Nov. 27, 1958, No. 38254/58. Addition to 805,838. Class 12 (1). [Also in Group XXXII] In a modification of the bearing assembly described in the parent Specification, a bearing 11 is supported from a bearing block 13 by means including at least three springs 12a, 12b, 12c having progressively adjustable characteristics which enable the bearing to be progressively changed from a radially isotropically substantially rigid condition to a radially isotropically flexible condition and vice versa. The tension of each spring may be adjusted by rotation of a screwed spindle 15 by means of an associated hand wheel or an auxiliary motor. Each spring may take the form of a spiral helix of a strip having a progressively decreasing width 19, Fig. 3, towards the centre of the spiral from a cylindrical outermost turn 21 adapted to contain the remaining turns when the spring is fully compressed.
Patent GB-809175-A (GB)
Title: Improvements in or relating to plug valves and liners therefor
IPC: F16K5/02
Filed: 1956-12-17
Abstract: 809,175. Making valves. CAMERON IRON WORKS Inc. Dec. 17, 1956 [March 21, 1956], No. 38405/56. Drawings to Specification. Class 83 (2). [Also in Group XXIX] The method of fabricating a liner for a plug valve (see Group XXIX), comprises bonding a thin sheet of gasket material to each side of a thin sheet of metal with the sheets extended flat, blanking out the liner from the bonded sheets, and bending the blanked piece into a frusto-conical shape.
Patent GB-945073-A (GB)
Title: Process for the production of expanded or foamed articles from foamable thermoplastic polymer compositions
IPC: C08J9/232
Filed: 1961-10-27
Abstract: A process for the production of expanded or foamed articles in a mould comprises placing a mass of a solid, particulate, thermoplastic polymer composition, which is capable of thermal foaming or expansion by virture of a contact of a volatile organic expanding agent which is not a solvent for the polymer, into the mould and subjecting the mass of the polymer composition to a first heating by passing a liquid gaseous or vaporous heating medium through the mass until the individual particles in the polymer composition are heated throughout to a temperature above the boiling point of the volatile organic expanding agent, which temperature is lower than that at which the polymer composition softens or at which the individual particles flow together or adhere to one another and thereafter subjecting the polymer composition to a second heating at a higher temperature at which foaming or expansion and fusion between the particles takes place. The method is particularly effective when the particulate thermoplastic polymer composition has been partially prefoamed and is capable of further foaming or expansion.  Suitable polymers are polystyrene, polyvinyl chloride, copolymers of vinyl and vinylidene chloride, polyacrylic esters and copolymers of styrene and methyl methacrylate, acrylonitrile or natural or synthetic rubber, and especially polymers or copolymers of monovinyl aromatic compounds. The gaseous heating medium may be saturated or superheated steam or steam in admixture with inert gases such as air, carbon, dioxide, nitrogen, methane, ethane, propane, butane and/or helium.  In examples the process is applied to beads of styrene and styrene-acrylonitrile copolymer containing pentane. Heating is effected by evacuating the mould and then using steam first at an absolute pressure of 150 mm. and than at 3 lbs. s.i. guage.  After moulding the chamber surrounding the mould is again evacuated to cause drying and cooling of the moulded body by vaporization and removal of the water.
Patent GB-371400-A (GB)
Title: Improvements relating to the entry of electric cables into cable boxes and other apparatus
IPC: H02G15/113
Filed: 1930-12-22
Abstract: 371,400. Couplings. HENDERSON, C. A. M., 2, Bradmore Way, Brookmans Park, Hertfordshire. Dec. 22, 1930, No. 38544. [Class 38 (i).] In securing and electrically bonding a cable c in an entry casing, short lengths of each of the coverings and lead sheathings of the cable are exposed, bound with wire, cleaned of any dirt or oil and introduced into the conical shaped chamber of the entry casing EC, soft metal filling ML being poured in, which when solidified secures the cable. In Fig. 1 the molten metal is introduced till a predetermined level LP is reached, and when the cable is secured, the wires are connected by thimble lugs tl to terminals b passing out through porcelain insulators p, the cover bp of the entry casing being then replaced and secured by the bolt BO. In Fig. 3, the entry is integral with the horizontal cable box and the metal filling is introduced through holes H, air holes being provided whilst packing PA prevents the flow of metal into the cable box proper. Metallic rings of different diameters and having a transverse and diagonal cut, may be employed instead of the soft metal to grip the casing and the sheathings, thus securing and electrically bonding the cable in a similar manner.
Patent GB-1150386-A (GB)
Title: Improved Thermoplastic Wrapping Materials and process for their preparation
IPC: B29C71/00
Filed: 1966-08-30
Abstract: 1,150,386. Polyolefin films. UNION CARBIDE CORP. 30 Aug., 1966 [30 Aug., 1965], No. 38675/66. Heading B5B. A crystalline polyolefin film exhibiting cling characteristics has a repeating pattern of alternate translucent and transparent areas throughout it, the translucent areas being of greater crystallization and orientation than the transparent areas; and is made by feeding a crystallizable polyolefin film capable of exhibiting cling characteristics in the final product, in at least a softened, amorphous state on to a differential cooling roll which bears the required pattern, and which is maintained below the crystallization temperature of the film, but above a temperature which would rapidly cool the film, and maintaining it in contact with the roll for at least a portion of the cooling cycle. Specified polymers are polypropylene, polyethylene and their copolymer; also such copolymers with minor amounts of copolymerizable monoolefinic monomers. The cling characteristic is imparted, e.g. by the incorporation in the film of a mono- and/or diglyceride of a fat-forming fatty acid; esters or ethers of ethylene oxide; or amines or amides containing at least one ethylene oxide group. The cooling roll suitably bears its pattern in the form of raised portions, which may themselves be engraved, e.g. in a mesh pattern, separated by grooves. The ratio of translucent area : transparent area is suitably from 1 : 2-1 : 15, and the individual figure area in the repeating pattern is suitably 0À01-0À5 sq. inch.
Patent GB-842490-A (GB)
Title: Improvements in or relating to book rests or the like
Inventor: KNIGHT ERNEST ALFRED
IPC: A47B19/08
Filed: 1957-12-13
Abstract: 842,490. Book-rests &c. KNIGHT INSTRUMENTS Ltd. Dec. 11, 1958 [Dec. 13, 1957], No. 38811/57. Class 52(3) A foldable book-rest has two supporting members 10, 11 pivoted together by a pin 12 secured at the rear to a U-shaped bracket having rearwardly extending lugs apertured to receive a spindle 16 on which are mounted the free ends 17, 18 of a U-shaped strut 19 which has a bridge piece 20 with inclined nose 21 to lie between members 10, 11 in the operative position. A chain 22 forms a collapsible support for a typist's note book.
Patent GB-1439858-A (GB)
Title: Sheet winding apparatus
IPC: B65H18/16
Filed: 1973-08-20
Abstract: 1439858 Winding webs HANSA-TECHNIK GmbH 20 Aug 1973 [7 Sept 1972] 39238/73 Heading B8R A web winding apparatus is provided with a web winding guiding device formed by spiral springs 4 disposed uniformly along web feed roller 1, the winding of the web being assisted by rollers 7, 8 provided with rings 9. The rings are of a material having a high coefficient of friction and the inner face of the springs 4 in contact with the web are lined with a polyhalogen synthetic resin having a low coefficient of friction.
Patent GB-897623-A (GB)
Title: Improvements in or relating to means for igniting fuses
IPC: F23Q3/00
Filed: 1960-11-16
Abstract: 897,623. Projectile fuzes. WASAG-CHEMIE A.G. Nov. 16, 1960 [Nov. 18, 1959], No. 39396/60. Class 9(1). Means for electrically igniting a projectile fuze 3 comprises a circuit in which are connected in series a piezo-electric generator 1, a spark gap 2 and the fuze 3. A piezo-electric crystal of lead or barium titanate, precompressed to produce as great a voltage rise as possible when subjected to a sudden compressional impact, will cause the ignition of a sensitive high-ohmic fuze when directly connected thereto. However, to make possible the use of a low-ohmic fuze, the introduction of a spark gap 2, which gap is preferably immersed in an inert gas such as argon, requires that a certain threshold voltage be reached before discharge takes place. Alternatively an impulse-transformer 5 (not shown) may take the place of the spark gap, the transformer being chosen to step-down the impulse voltage to suit the fuze resistance. A third embodiment may include both the spark gap and impulse-transformer.
Patent GB-830824-A (GB)
Title: Process and catalyst for polymerization of polymerizable hydrocarbons
IPC: C08F10/00
Filed: 1956-12-28
Abstract: A catalyst used in the polymerization of unsaturated hydrocarbons is obtained by mixing (1) a halide of Ti, Zr, Hf or Ge; (2) a carbide or acetylide of Li, Na, K, Rb, Cs, Mg, Ba, Sr, Ca, Zn, Cd, Hg, Cu, Ag or Au; and (3) a component selected from (a) organometallic halides of Al, Ga, In, Tl and Be, (b) organic halides + Li, Na, K, Rb, Cs, Be, Mg, Zn, Cd, Hg, Al, Ga, In or Tl, and (c) complex halides of an alkali metal and Al, Ga, In or Tl. An inert diluent is usually present.ALSO:Unsaturated hydrocarbons are polymerized using as catalyst the reaction product of (1) one or more halide(s) of Ti, Zr, Hf or Ge; (2) one or more carbide(s) or acetylide(s) of Li, Na, K, Rb, Cs, Mg, Ba, Sr, Ca, Zn, Cd, Hg, Cu, Ag or Au; and (3) one or more components selected from (a) organometallic halides of Al, Ga, In, Tl and Be, (b) organic halides plus Li, Na, K, Rb, Cs, Be, Mg, Zn, Cd, Hg, Al, Ga, In or Tl, and (c) complex halides of an alkali metal and Al, Ga, In or Tl.  Many unsaturated hydrocarbons are specified including olefins such as ethylene (purified in the examples), propylene, &c., alkyl-substituted olefins, non-conjugated di- and poly-olefins, cyclic olefins such as cyclohexene, mixtures of the above, aryl olefins such as styrene and its alkyl-substituted compounds, conjugated dienes, such as butadiene and its derivatives, either alone or with any of the above or with acrylonitrile, methacrylonitrile, methyl acrylate or methacrylate, vinyl acetate or chloride or a vinyl pyridine.  The polymerization may be continuous or with continuous addition of olefin, and may be in bulk or in an inert diluent (preferably purified).  Preferred molar ratios of catalyst components are given.  Subsequent to polymerization the catalyst may be destroyed with methanol or other alcohol, water, an acid or a base.  The polymers may be used in the impregnation of paper and fabrics and in the manufacture of bottles and pipe.
Patent GB-986738-A (GB)
Title: A process for recovering crystalline glutamic acid from a glutamic acid-containing fermentation broth
IPC: C12P13/14
Filed: 1963-10-07
Abstract: Glutamic acid is obtained from a glutamic acid fermentation broth by (i) adjusting the pH of the broth to about the isoelectric point of glutamic acid by adding an acidic liquor which has been obtained by the acid treatment in the fourth step of a previous operation, and, if necessary, also adding additional acid, and separating this first crop of glutamic acid crystals, (ii) separating a mixture of micro-organism cells and huminous substance from the mother liquor from which the first crop of glutamic acid crystals has been separated, (iii) concentrating this clarified mother liquor and separating the resulting second crop of glutamic acid crystals, and (iv) heating with a mineral acid all or a portion of the resulting mother liquor from which the second crop of glutamic acid crystals has been separated.  The glutamic acid obtained in the second crystallization may be recycled to the first step of a following operation, or washed and combined with the first crop of crystals. The product acid may be recrystallized as the monosodium salt. Specifications 869,948, 870,031 and 924,035 are referred to.