baber/WOPTO huggingface dataset:
Patent GB-1421607-A (GB)
Title: Laser system
IPC: H01S3/108
Filed: 1973-11-20
Abstract: 1421607 Lasers INTERNATIONAL BUSINESS MACHINES CORP 20 Nov 1973 [21 March 1973] 53717/73 Heading H1C [Also in Divisions H3-H5] A tunable laser 2 of output frequency f L  is coupled to a non-linear metal vapour Raman cell 20 in which the laser output generates stimulated Raman scattering at a second frequency f S , the first and the second frequencies f L , f S  also acting together in the cell so as to produce emission at a third frequency f R . A second tunable laser 4 of output frequency f P  may be provided, its output being combined with that of laser 2 by mirrors or Glan prisms 8, 10 and producing the emission frequency f R  from the Raman cell by mixing the frequencies f L , f S  and f P . The latter arrangement has the advantage of a broader frequency emission range in which frequency selection is effected by alteration of f P . Dye lasers tuned, e.g. by diffraction gratings, and pumped either by flash lamps or a common nitrogen laser 6 may be used, the emission frequency range of the Raman cell being extendable by changing the type of laser dye in use. Incident laser radiation 12 on the Raman cell is focused by a lens 14 and passes through a frequency selective window 16, while emergent radiation is filtered at 22 so as to provide an infra-red or an ultraviolet output, depending on whether the mechanism of stimulated Raman scattering essentially produces a Stokes or an anti Stokes response. The Raman cell is located in a heat pipe oven 18 and contains single or mixed vaporized alkali metals in the group lithium, sodium, potassium, caesium and rubidium with a vapour pressure of several Torr. The vapour pressure selected provides an amplitude trim control by optimizing the coherence length of the cell for a given frequency f P , while mixed metal vapours enable phase matching to be obtained by providing suitable refractive indices.
Patent GB-1476300-A (GB)
Title: Substituted ferrocene compounds and processes for their production
IPC: C07F17/02
Filed: 1973-11-21
Abstract: 1476300 Ferrocene derivatives FISONS Ltd 12 Nov 1974 [21 Nov 1973 17 July 1974] 54002/73 and 31609/74 Heading C2J The invention comprises compounds of the general formula in which R is alkyl, Cl, Br, a thiophene ring, a ring, a furan ring, phenyl or alkyl. or halophenyl, one of X and Y is -CO-, -CHOH-, or -CH 2 - and the other is an exocyclic C-C bond and A is a C 5 -C 7  unsubstituted cyclic hydrocarbyl group which may be unsaturated at the C atom connected to X and, when saturated and when X is -CO-, may be substituted by -OH on the C atom to which Y is attached, X and Y being attached to adjacent C atoms on the A group. The compounds are prepared by the following processes: (a) when X is a direct bond, A is a cycloalkene group and Y is -CO- either by (1) reacting ferrocene with (usually in the presence of a Lewis acid such as AlCl 3 ) where n is 4, 5 or 6 and R<SP>1</SP> is -CN, -COOH or an acid halide or anhydride thereof and, when R<SP>1</SP> is -CN, hydrolysing the product, or (11) cyclizing and dehydrating under acidic conditions a ferrocene substituted by the group -CO(CH 2 ) n COR; (b) when X is -CO- and A is a saturated cyclic hydrocarbyl group substituted by an -OH group at the C atom to which Y (direct bond) is attached by cyclizing a ferrocene substituted by -CO(CH 2 ) n COR under basic conditions (e.g. ring NaH in dioxan or NaOH in ethanol); (c) when one of X and Y is -CHOH- or -CH 2 - by selective reduction of a compound of the invention obtained by process (a), (b) or (f), usually by using Pd on charcoal at 20-80‹ C. or by use of or a Clemmensen reduction; (d) when one of X and Y is -CO- by selective oxidation of a -CHOH- containing product of process (c), e.g. using CrO 3 .dipyridine complex; (e) when R is phenyl or halo- or alkylphenyl by reacting a ferrocene substituted by the group where R<SP>1</SP> and n are as defined under (a) (i) above with benzene or a halo- or alkylbenzene usually under Friedel-Crafts conditions; and (f) when X is -CO- and A is unsaturated by dehydrating a compound obtained by process (b) using similar conditions to that process but preferably lower reaction temperatures. The compounds have pharmacological properties and may be formulated into pharmaceutical compositions which may also include Vitamins B12 and C, folic acid, aspirin, an anthelmintic or an oral contraceptive.
Patent GB-1478629-A (GB)
Title: Power steering means power-driven axle combination
IPC: B62D5/10
Filed: 1975-10-27
Abstract: 1478629 Power steering systems DAVID BROWN TRACTORS Ltd 27 Oct 1975 [17 Dec 1974] 54543/74 Heading B7H  Power steering means of a power-driven axle, including a casing 10 which contains differential gearing connected by half-shafts to stub-axles in respective housings 14 pivotally connected to each end of the casing, comprises a doubleacting hydraulic cylinder 20 rigidly secured to the casing 10 and containing a slidable piston 23 disposed between the ends of a piston rod 24 which projects from both ends of the cylinder 20, each end of the rod 24 being pivotally connected by a link 25 to a steering arm 18 mounted on a respective housing 14. Each housing 14 contains epicyclic reduction gearing interposed between its stub axle and universal joint means connected to the associated half shaft.
Patent GB-546971-A (GB)
Abstract: 546,971. Polyvinyl compositions. STANDARD TELEPHONES & CABLES, Ltd., and NEW, A. A. Jan. 2, 1941, No. 72. [Class 2 (iii)] Electrical insulating material consists of a mixture of polystyrene and the polymerized α-methyl styrene formerly sold under the designation Polymeth 2 and now sold under the designation Polymeth 350, the mixture containing 50 to 60 per cent. of Polymeth 350. The mixture may be made by dissolving the ingredients in a common solvent such as benzene or trichlorethylene and'evaporating the solvent, or by adding the finely divided polystyrene to the Polymeth 350 while heating and stirring the mixture, and then heating without stirring; a low pressure may be applied to the mixture during, or subsequent to the heating without stirring. Specifications 506,290, 542,694, [Group XXVIII], and 546,990 are referred to. According to the Provisional Specification, the mixture may contain from 10 to 70 per cent. of the Polymeth 2. Specification 540,300, [Group XXXVI], also is referred to.
Patent GB-1374310-A (GB)
Title: Dipyrazolo 3,4-b-3,4,-d- pyridin-3-ones
IPC: C07D471/04
Filed: 1971-11-26
Abstract: 1374310 Dipyrazolo[3,4-b; 3<SP>1</SP>,4<SP>1</SP>-d]pyridin-3- ones E R SQUIBB & SONS Inc 26 Nov 1971 [1 Dec 1970] 55068/71 Heading C2C Novel compounds of the general Formulµ I or II wherein R 1  is C 1-7  alkyl, C 3-6  cycloalkyl, (R 5 ) n  phenyl or (R 5 ) n  phenyl-C 1-7  alkyl; R 2  is hydrogen or C 1-7  alkyl; R 3  is hydrogen, C 1-7  alkyl, or hydroxy-C 1-7  alkyl, R 4  is (R 5 ) n  phenyl; R 5  is hydrogen, C 1-7  alkyl, halogen, or C 1-7  alkoxy and n is 1 or 2 and acid addition salts thereof may be prepared by cyclization of compounds VIII or IX wherein lower alkyl is C 1-7  alkyl and optionally alkylating a compound I wherein R 3  is H to produce a compound I in which R 3  is C 1-7  alkyl Compounds of the Formula VIII or IX may be produced by substituting the appropriate hydrazine group for a chlorine or ethoxy group, both of which groups may be formed from the appropriate 4-hydroxy compound by treatment phosphorus oxychloride or ethyl iodide respectively. R 1 , R 2  - Substituted - 4 - hydroxy - 1H - pyrazolo[3,4-b]pyridine- 5 - carboxylic acid ethyl ester may be prepared by cyclizing an [(1-R 1 , 3- R 2  substituted - 5 - pyrazolyl)amino methylene]- malonic acid which in turn may be produced by reacting a 1-R 1 , 3-R 2 , 5-amino-pyrazole with ethoxy methylene malonic acid diethyl ester. Pharmaceutical compositions of the compounds I and II are tranquilizers, ataractic agents and relieve asthma when administered orally or parenterally with the usual excipients.
Patent GB-1434425-A (GB)
Title: Dioxamates and the manufacture thereof
IPC: C07C/
Filed: 1973-11-28
Abstract: 1434425 Phenylenedioxamate derivatives UPJOHN CO 28 Nov 1973 [20 Dec 1972] 55209/73 Heading C2C Novel compounds I (in which M is H or a pharmaceutically acceptable cation (metal or amine); is at 4, 5 or 6 position with regard to the CN group and X is as follows is at 4, then X is 3-H or 1-3C alkyl; 5-H, halo, 1-3C alkoxy or CN; or 6-H of halo; is at 5, then X is 3- or 6-H or 4-H, halo, 1-3C alkyl or 1-3C alkoxy; -NHCOCOOM is at 6, then X is 3- or 5-H or 1-3C alkyl or 4-H, CN, or 1-3C alkyl) are prepared by reaction of a compound II with an alkyloxalylhalide to give the dialkyl dioxamate, followed by hydrolysis. The compounds II may be prepared by reduction of the corresponding nitro compounds which are prepared, for example, by treatment of the corresponding dinitro-carboxylic acids with benzenesulphonamide. Pharmaceutical compositions for oral, parenteral, rectal or nasal administration in treating allergies and anaphylactic reactions of reagin or non-reagin nature comprise a compound I together with a suitable carrier.
Patent GB-1157440-A (GB)
Title: Improvements in Fluid Pressure Operated Reciprocating Motors
Inventor: BUTTERWORTH PHILIP
IPC: F03C1/14
Filed: 1966-12-09
Abstract: 1,157,440. Hydraulic and pneumatic reciprocating motors; valve gear. BUTTERWORTH HYDRAULIC DEVELOPMENTS Ltd. Nov. 30, 1967 [Dec. 9, 1966], No.55226/66. Headings F1A, F1M and F1S. A hydraulic or pneumatic motor, e. g. for operating an agricultural mower, as shown, or percussive tools &c. comprises a differential piston 1 having its smaller effective area 6 continuously subjected to fluid pressure from an inlet 20 and its larger effective area 8 alternately connected to inlet 20 and exhaust 28 by a spool valve 5 having a differential piston action with its smaller effective area 11 continuously subjected to inlet pressure and its larger effective area 14 alternately connected to pressure and exhaust by the movement of piston 1 controlling ports 25a, 26a leading to ports 25b, 26b in the spool cylinder. The port arrangement is such that 25b, 26b are not closed at the same time and ports 25a, 26a are not closed at the same time, and when the spool land 10, which controls the connection of the port 23, leading to the larger area of the piston, to pressure and exhaust, is covering port 23, ports 25b and 26b are both open, thereby minimizing stalling of the motor. In the mower embodiment shown, one mower blade is attached to housing extension 34 and the other mower blade to piston rod extension 35.
Patent GB-1131370-A (GB)
Title: Process for preparing polysulphonates and polythiocarbonates
IPC: C08G63/688
Filed: 1965-12-30
Abstract: 1,131,370. Superpolyesters. BORG-WARNER CORP. 30 Dec., 1965 [31 Dec., 1964], No. 55270/65. Heading C3R. Superpolyesters are made by reacting a dihydric phenol with at least one diacid chloride of formula where A is an aliphatic, aromatic or araliphatic radical; the reaction being effected in the presence of an organic solvent for the polyester and an at least stoichiometric amount of a tertiary amine in which one of the valencies of the nitrogen atom is satisfied by an aliphatic radical and the other two valencies are satisfied by other aliphatic radicals or by cycloaliphatic or araliphatic radicals or the residue of a saturated heterocyclic radical in which the nitrogen atom is a ring member. The reaction mixture may also include phosgene or a diacid chloride of a dicarboxylic acid of formula The preferred solvents are chlorinated hydrocarbons. Specified amines are triethylamine, tributylamine, dioctadecylmethylamine, dimethylbenzylamine, N - methylpiperidine, N,N<SP>1</SP> - dimethylpiperazine and N - methylmorpholine. Many dihydric phenols and acid chlorides are specified. In examples: Polysulphonates are made from (9) Bisphenol-A and 4,4<SP>1</SP>-biphenyldisulphonyl chloride. A Polythiocarbonate is made from (20) Bisphenol - A and thiophosgene. Sulphonate - carboxylate copolyesters are made from (6)-(8) and (10)-(12) Bisphenol-A, isophthaloyl chloride, terephthaloyl chloride and 4 : :4<SP>1</SP>-diphenyletherdisulphonyl chloride, 4 : 41 - diphenylsulphonedisulphonyl chloride and 4-chlorosulphonylbenzoyl chloride; (14)-(17) Bisphenol A, 4:4<SP>1</SP>-biphenyldisulphonyl chloride, isophthaloyl chloride, terephthaloyl chloride and hydroquinone, resorcinol, 4 : 4<SP>1</SP> - bis - (4 - hydroxyphenyl)- pentanoic acid or fumaroyl chloride; (18) Bisphenol-A, 4 : 4<SP>1</SP> - biphenyldisulphonyl chloride and sebacoyl chloride. A Sulphonatecarboxylate block copolyester is made by reacting (13) a polysulphonate from Bisphenol-A and 4 : 4<SP>1</SP> - biphenyldisulphonyl chloride, Bisphenol-A and terephthaloyl chloride. A Sulphonate-carbonate copolyester is made from (19) Bisphenol-A, 4 : 4<SP>1</SP> - biphenyldisulphonyl chloride and phosgene. Thiocarbonate-carboxylate copolyesters are made from (21)-(22) Bisphenol-A, thiophosgene and a mixture of isophthaloyl and terephthaloyl chlorides. A Thiocarbonate-carbonate copolyester is made from (23) Bisphenol-A, thiophosgene and phosgene. A Thiocarbonate-sulphonate copolyester is made from (24) Bisphenol-A, 4 : 4<SP>1</SP>-biphenyldisulphonyl chloride and thiophosgene.
Patent GB-1107400-A (GB)
Title: Process for the production of polyamide-polyester blends
IPC: D01F8/14
Filed: 1965-12-30
Abstract: A fibre-forming blend from a synthetic unbranched polyester and a synthetic unbranched polyamide having at least 40% primary amino end groups is obtained by applying shearing forces to a molten mixture of two such polymers containing not more than 0.2% moisture and a polyamide chain terminator reactive with primary amines present in a proportion of 0.5 to 3 equivalents per amine equivalent so as to disperse one polymer in a continuous phase of the other.  Various polyesters based on aromatic, alicyclic and heterocyclic diacids are specified; the polyesters may also be polylactones.  Polyamides specified are nylons 6 and 66 of reduced viscosity at least 0.9 while specified chain terminators are mono and polycarboxylic acids and anhydrides and p-tolyl isocyanate.  The chain terminator may be a carboxylic acid formed in situ from an aldehyde and an oxidizing agent.
Patent GB-1212502-A (GB)
Title: Improvements relating to cards capable of breaking an authenticity code
Inventor: GILSON RAYMOND GEORGE
IPC: G06K1/12
Filed: 1966-12-10
Abstract: 1,212,502. Record cards. ELECTRIC & MUSICAL INDUSTRIES Ltd. 11 Dec., 1967 [10 Dec., 1966], No. 55433/66. Heading G4M. [Also in Division H1] ] A record card has a layer of magnetic material of one coercivity occupying at least part of the area of the card, and another layer of magnetic material of different coercivity occupying part only of the area of the other layer. The layer of lower coercivity may be continuous and the other in the form of strips or dots. Either layer may be the outer layer. The materials of high and low coercivity may be Co ferrite and #-Fe a O3 respectively. Information is recorded on both layers and then erased from the layer of low coercivity; different information may then be recorded on this layer. ,
Patent GB-1115743-A (GB)
Title: Improvements in or relating to ignition control circuits
IPC: F02P15/12
Filed: 1965-03-26
Abstract: 1,115,743. Starting I.C. engines. MAR-LIN SAFETY DEVICES Inc. 26 March, 1965 [28 April, 1964], No. 55445/67. Divided out of 1,115,742. Heading H2H. [Also in Division F1] The disclosure in the Specification is similar to that of the parent Specification but the claims are directed to an ignition control circuit.
Patent GB-1153165-A (GB)
Title: Apparatus for feeding a sheet of packaging material to an article to be packaged
IPC: B65B25/14
Filed: 1966-12-13
Abstract: 1,153,165. Feeding wrapping sheets; feeding webs. METAVERPA N.V. 13 Dec., 1966 [5 Jan., 1966], No. 55740/66. Headings B8C and B8R. A wrapping sheet, fed to an article from a supply roll, passes through two sets of feed rollers between which is a device responsive to tension in the sheet, which at a predetermined value operates a switch actuating a knife blade. The two sets of feeding rollers travel at the same speed. In the embodiment described, sheets are fed by accelerating rollers 14, 13, on a work-table 2, on to a pair of belts 8. The roller 14 has a rough surface, and the roller 13 a smooth surface. When the article engages a switch (24), Fig. 2 (not shown), the drive to a clutch driven feed roller 19 is engaged and sheeting is fed from a supply reel 3 through a guideway 18 having a resilient section 25, 26 to work-table 2, the latter stages of feeding being affected by continuously driven feed rollers 20, and 23. When the article ceases engagement with the switch (24) the drive to the roller 19 is discontinued and the wheel is braked. Due to the continued rotation of feed rollers 20 and 23, the tension in the web in front of the roller 19 increases and the resilient section 25, 26 of the guideway 18, yields downwardly on to a switch 27 which operates a knife 21 to sever the sheet. When the web has been severed, the resilient part of the guideway returns to its former position, thus pulling the severed end of the sheeting away from the knife blade.
Patent GB-1153803-A (GB)
Title: Two-Part Fastener for Securing Two Apertured Members to One Another
Inventor: FORD DAVID JULIAN
IPC: F16B5/10
Filed: 1966-12-13
Abstract: 1,153,803. Stud and socket fastenings. CARR FASTENER CO. Ltd. 22 Sept., 1967 [13 Dec., 1966], No. 55826/66. Heading E2B. A two part fastener comprises a resilient stud 1, having a body 3, portions 5 and 6, for snapping engagement in an aperture formed in a panel a, a through bore 11 and formations (not shown in Fig. 1) projecting into the bore, and a pin 2, having a head 8, shank 7 and lugs 9 and 10 extending laterally from the shank, the fastener being securable by rotating the pin to bring lugs 9 and 10 into engagement with the formations, thus preventing withdrawal of the pin from the stud, this rotation also causing the lugs to engage and move radially outwardly the stud portions 5 and 6. The formations may comprise two shoulders, each as shown in Fig. 3. Upon rotation of the pin, the lugs 9, 10 ride up ramps 12, snap over protuberances 13 and come to rest in depressions 14 in the manner of a bayonet-type fastening. The stud portions 5,6 are of subsantially rectangular crosssection, Fig. 4, (not shown), and are formed with ribs 5a, 6a. The bore 11 is formed with diametrically-opposed enlargements to permit the passage of lugs 9 and 10 upon insertion of the pin. A spacer element 15 may be provided 'in the assembly of two panels a and b, and the annular flange 17 of this element may be formed with an annular lip Fig. 13 (not shown) which engages the outer surface of panel b. In a modification, Figs. 7-12 (not shown), the spacer element is dispensed with, the stud body comprising two co-axial annular walls abutting panel b, and the pin head comprises a radially-split, frusto-conical, resilient flange, the larger end of which bears against panel b. In any of the embodiments, the length of the pin may be such that the fastener is under compression when secured.
Patent GB-1409747-A (GB)
Title: Heating system for extrusion of thermoplastics
IPC: B29C48/08
Filed: 1972-12-06
Abstract: 1409747 Heat shields for extruders FMC CORP 6 Dec 1972 [20 March 1972] 56384/72 Headings B5A and B5B The temperature of a molten thermoplastic polymer is kept within a required band whilst passing from a screw extruder 13 through a filter 17 and flanged pipes 31, 33, 35 to an adjustable slit die 21 by passing heated air through a passage or conduit 47 formed by surrounding the above apparatus with a fibreglass heat shield 39. The temperature of the air is controlled by a detector 63 connected to a controller 65 regulating the temperature of a heater 51. The pressure of the air is controlled by a sensor 69 connected to a controller 67 regulating a blower 49. The air may circulate clockwise as shown through conduits 59, 61, 47, 57 or anticlockwise, the positions of the blower 49 and heater 51 being interchanged. The heat shield 39 is provided with spacers 43 and may comprise preformed panels interconnected by quick-release fasteners. A pair of filters 17 placed in parallel and provided with diverter valves so that one may be used and one may be a stand-by. The polymer may be a polyamide, a polyethylene or a polyester such as polyethylene terephthalate.
Patent GB-1316983-A (GB)
Title: Methods for washing red blood cells
IPC: G01N33/483
Filed: 1970-05-05
Abstract: 1316983 Washing red blood cells N M HIRSCH 5 May 1970 [2 June 1969] 56831/70 Divided out of 1316981 Addition to 1316981 Heading A5B Red blood cells are freed from a coating of preselected substances, such as non-specific protein, by mixing them with a wash solution which dissolves the substance(s) to be removed but which does not remove the net electrical charge on the cells, subjecting the mixture to an electrical field polarized such that the red blood cells are caused to migrate to one edge of the mixture, and separating the migrated cells from the wash solution. Thus, the red blood cells may be mixed with a saline wash solution and passed through a tube sandwiched between a pair of electrodes, the bottom electrode being given a positive charge and the top electrode a negative charge, by means of a DC voltage supply. In this way, the negatively charged red blood cells are forced to migrate downwardly to the lower edge of the tube, permitting separation of the migrated cells from the wash solution by decantation.
Patent GB-1308795-A (GB)
Title: Coupling arrangement providing for automatic supply of gas from  reserve gas cylinder to a consumer pipe connected to a main gas  cylinder upon depletion of the contents of the main gas cylinder
IPC: F17C13/04
Filed: 1970-11-30
Abstract: 1308795 Gas distribution systems P KREIS 30 Nov 1970 [2 Dec 1969] 56852/70 Heading F4X A gas supply arrangement comprises a main gas cylinder A and a reserve gas cylinder B each provided with a respective pressure regulator 6, 26 and connected to a consumer pipe 12 by way of pipes 8, 28 and junction piece 10. Non-return valves are incorporated in the unions 3 and 23 between the pressure regulators 6, 26 and the cylinders A, B. The pressure regulator 6 connected to the main cylinder A is set at a higher outlet pressure than the pressure regulator 26 connected to the reserve cylinder, whereby when the main cylinder A is nearly empty the reserve cylinder B will then supply gas to the consumer pipe 12 until the main cylinder is replaced by a fresh one; thus an uninterrupted flow of gas is supplied to the consumer pipe 12. The gas in the cylinders is normally in liquid form and can be used for camping purposes.
Patent GB-1150800-A (GB)
Title: Apparatus for Unloading Material from a Heap
IPC: B65G65/06
Filed: 1967-12-14
Abstract: 1,150,800. Unloading materials from a heap. GUSTAV SCHADE MASCHINENFABRIK. 14 Dec., 1967 [25 March, 1967], No. 56953/67. Heading B8E. Heap 2 of material is annular in shape and material is fed thereto by endless conveyer 5 which discharges material down the hollow top of column 1 on to endless conveyer 7 which distributes it over heap 2 by means of conveyer 8. Material is discharged from the heap 2 by means of endless conveyers carried by jibs 15 pivoted together at 17 and to frame 9 at 16, the material passing on to belt 19 and being discharged into hopper 20 and then being discharged rightwards by belt 22. Frame 9 is pivoted to turn around column 1, moving on rail 11 and frame 6 of belt 7 also moves around column 1 being supported by 13 on rail 11. Alternatively the frame 9 may carry the feeding conveyer, so that it carries both charging and discharging apparatus as it rotates about the hopper 20.