baber/WOPTO huggingface dataset:
Patent GB-1380594-A (GB)
Title: Apparatus for x-ray analysis
IPC: G01N23/22
Filed: 1972-08-31
Abstract: 1380594 X-ray spectrometers NIHON DENSHI K K 31 Aug 1972 [7 Sept 1971] 40508/72 Heading G1A In an X-ray spectrometer in which X-rays diffracted by a rotating crystal are received by an X-ray counter rotating at twice the speed of the crystal, the mean height of pulses produced by X-rays satisfying the Bragg equation is maintained constant by varying the high voltage supply to the counter in accordance with the angle of rotation of the crystal. As shown, Fig. 1, an X-ray source 1 illuminates a sample 2 which fluoresces and produces X-rays which are reflected by a crystal diffractor 4 and are received by a detector 5 which may be a proportional counter or a scintillation counter. The crystal 4 is rotated by means of a drive 7 and the detector 5 is also rotated but at double the speed so that it receives the X-rays reflected from the crystal.  As shown, Fig. 3, the X-ray counter driveshaft 14 also carries the wiper 13 of a potentiometer which is divided into sections across which are connected resistors which are adjusted to give the desired non-linear characteristic. The potentiometer is connected across the output of a high voltage source and provides a signal which is compared with a reference voltage by a differential amplifier 10 which controls the high voltage source 9. A pair of potential dividers 17, 18 are connected across the high voltage source to provide varying outputs at levels suitable for the operation of a proportional counter or a scintillation counter respectively. The output pulses from the counter 5 are processed by a preamplifier 19 and a pulse height analyzer having a suitable window width about the constant value of the mean height of the pulses resulting from X-rays satisfying the Bragg equation, and are then counted by a rate meter 21 the output of which is applied to a recorder 22.
Patent GB-1055828-A (GB)
Title: Resin composition
IPC: C08L27/18
Filed: 1964-10-05
Abstract: Mouldable resin mixtures comprise (1) a polytetrafluoroethylene resin in the form of particles of diameter 20 to 1000 microns and (2) a polycarbonate resin having a glass transition temperature of at least 125 DEG  C. in amount of 10 to 40% based on the weight of resins. The polycarbonates may be prepared by reacting phosgene, a bishaloformate or a carbonate ester with a dihydric phenol, e.g. 2,2-bis-(4-hydroxyphenyl) propane, hydroquinone, resorcinol, 2,2 - bis - (4 - hydroxyphenyl) pentane, 2,41-dihydroxydiphenyl methane, bis-(2-hydroxyphenyl) methane, bis-(4-hydroxyphenyl) methane, bis - (4 - hydroxy - 5 - nitrophenyl) methane, 1,1 - bis - (4 - hydroxyphenyl) ethane, 3,3 - bis - (4 - hydroxyphenyl) pentane, 2,21-dihydroxydiphenyl, 2,6 - dihydroxynaphthalene, bis - (4 - hydroxyphenyl) sulphone, 2,41dihydroxydiphenyl sulphone, bis - (4 - hydroxyphenyl) diphenyl sulphone, 4,41-dihydroxydiphenyl ether, 4,41-dihydroxy-2,5-diethoxydiphenyl ether and the dihydric phenols disclosed in Specification 940,419, if desired together with a glycol, dibasic acid or acid- or hydroxy-terminated polyester.  The compositions may be moulded by compression, injection, calendering or extrusion, to form gaskets, pipes, wheels, gears, bearings and electrical insulation.  Examples describe compositions comprising polytetrafluoroethylene and (1 to 3 and 5) poly-p,p1-(2,2-diphenylpropane) carbonate and (4) a copolycarbonate prepared by phosgenating a mixture of 97 parts by weight of 2,2 - bis - (4 - hydroxyphenyl) propane and 3 parts by weight of 2,2-bis-(4-hydroxy-3,5dibromophenyl) propane.
Patent GB-1441444-A (GB)
Title: Logging the sequence of a programme in data processing systems
IPC: G06F11/34
Filed: 1973-08-30
Abstract: 1441444 Monitoring data processing systems INTERNATIONAL BUSINESS MACHINES CORP 30 Aug 1973 [23 Sept 1972] 40774/73 Heading G4A A record of a sequence of instructions executed in a data processing system is made by recording the store address of executed instructions in a selected one of the following three modes, viz. recording for each branch instruction in which the branch is taken only the "branch-to" address, for each branch instruction in which the branch is taken the "branch-to" and branch from addresses, and the address of each executed instruction. The system which is monitored consists of a microprogram control word store 4 addressed by register 3 in response to signals from the previous address incrementer 1, the output register 9 in the case of branch instructions specifying a "branch-to" instruction address, and lines TRAP and TLU supplying interrupt instruction addresses. A mode switch 17 causes the relevent instruction addresses to be stored in store 19 in response to mode-control signals. The store includes 16 locations which are addressed cyclically so that at any time the store contains a log of the most recently executed part of the program. A gating network is described, Fig. 4 (not shown), to fulfill the function of mode switch 17. The network provides a write signal to store the contents of address register 3 in each machine cycles. The network also provides "advance" signals to increment address counter 18 to address the next storage location in store 19 when the contents of address register 3 are to be retained, e.g. in mode 3 in every cycle. Mode 3 operation may be used for retry purposes when an error occurs. The record stored in store 19 may be printed out.
Patent GB-1001485-A (GB)
Title: Improvements in or relating to ceilings or walls
Inventor: BLOOD PETER BINDON
IPC: E04B9/06
Filed: 1961-11-15
Abstract: 1,001,485. Ceiling and wall constructions. ISORA ILLUMINATING CEILINGS Ltd. March 30, 1962 [Nov. 15, 1961], No. 40871/61. Heading E1V. [Also in Division F4] A ceiling, wall lining, or partition wall, comprises panels 10 supported on a gridwork 24, each panel comprising a rigid frame 20 over which is stretched a flexible sheet or film 12 having a border of increased thickness and formed with a groove so that it is snapped over the edge of the frame. As particularly described, the gridwork is of a light metal and two flexible sheets or films 12, 14 over each panel are of synthetic plastic or of a woven or rubberized fabric with the thickened border of plastic or plastic-coated cord or cable. The sheets or films may be translucent. Cruciform or T-shaped connecting pieces fill the gaps between panels and electric lighting may be located above the ceiling to diffuse through to the room below.
Patent GB-1068682-A (GB)
Title: Ferrimagnetic-thermistor devices
IPC: H01H43/30
Filed: 1963-10-16
Abstract: 1,068,682. Magnetic structures; thermistors. S. UMEDA. Oct. 16, 1963 [April 6, 1963], No. 40942/63. Headings H1H and H1K. [Also in Division H2] A ferri-magnetic thermistor for use in a time delay control device consists of a body of a sintered mixture of ferric oxide and an oxide of at least one divalent transition metal, e.g. manganese, nickel, cobalt or zinc with a pair of electrodes comprising silver. It may be produced by preparing a suspension of ferric oxide powder in a water and/or alcohol solution of a salt of the divalent transition metal, drying, compressing the powder into the required shape, sintering in air at 1300-1400‹ C., cooling rapidly from 1050‹ C. down to room temperature by quenching in inert gas, water or oil and applying the electrodes. A list of suitable compositions is given.
Patent GB-1468299-A (GB)
Title: Margin stop arrangement for typewriters
IPC: B41J29/50
Filed: 1974-09-20
Abstract: 1468299 Typewriters &c. HERMES PRECISA INTERNATIONAL SA 20 Sept 1974 [20 Sept 1973] 41051/74 Heading B6F In a typewriter having a movable type element 2 on a carriage 1 margin stops 3, 4 are selectively engageable with one of the rows of teeth 9, 10 (which are of different pitch). Each stop 3, 4 has a pointer 25 indicating on scale carrier 5 the position of the stop. Pointers 25 indicate the positions of the stops on scales 6, 7 when teeth 9, 10 respectively are engaged. As shown each stop has a grip 34 attached to bar 33. The bar is attached to plate 24 having a slot 30. Plates 26, 27 are connected by pins, slidable in the slot 30 and carry respectively fingers 28, 29 to engage teeth 9, 10. The fingers are urged by a spring (32), Fig. 5 (not shown) to contact the teeth. Movement of character spacing shift 12, as a result of the inclination of slots 18, 19, causes tongue 13 to rise or fall and so pivot the stops 3, 4 about rod 23 and cause it to engage the other of the set of teeth 9,10.
Patent GB-1354759-A (GB)
Title: Plastic drawers
IPC: A47B88/04
Filed: 1971-09-03
Abstract: 1354759 Sliding drawers BBP-KUNSTSTOFFWERK MARBACH BAIER & CO 3 Sept 1971 [10 Sept 1970 19 Feb 1971] 41114/71 Heading A4B A plastics drawer which is adapted for use with a variety of guide systems, including simple or telescopic slides and arrangements using rollers or balls, includes a floor 2 integrally moulded with a pair of longitudinal side walls 1 each having an integrally moulded, single, longitudinal guide rail 15 adjacent the floor 2, the drawer including means facilitating detachable fitment of a metal rail 18 to overlie or underlie the guide rail 15 as desired for use in certain of the guide systems. The metal rail 18 is fitted by a first connection 23 at the rear end of the drawer side, a lug 27 on the metal rail 18 being engaged in a socket 29 in the drawer by generally rearward movement of the metal rail 18 when in a slightly oblique condition, as at 16'. Thereafter a second connection 25 at the front of the drawer by engagement of a lug 30 on the rail 18 in a socket 32 in the drawer, either the drawer or the rail 18 being resiliently deformed to affect the latter connection 25.
Patent GB-1237888-A (GB)
Title: Improvements in rolled-stock guides for rotating shears
IPC: B23D33/02
Filed: 1968-08-28
Abstract: 1,237,888. Flying shears. SCHLOEMANN A.G. 28 Aug., 1968 [29 Aug., 1967], No. 41138/68. Heading B3W. In a rotating flying shear, Fig. 1, having a blade 4 on an arm 2, which is accelerated through an angle of more than 360 degrees from rest to match the speed of rolled stock, an entry guide tube 8 and a discharge guide tube 12, the adjacent ends of the guide tubes are fixed with respect to each other and linked to the drive of the shear so as to be moved into and out of the path of the shear blade, the movement from one extreme position to the other taking place during the time the blade is accelerated from rest to its cutting speed. The other end of the discharge tube is linked for movement with respect to two guide tubes, one of which is for cropped stock and the other for the sheared off ends of the rolled stock. The blade 4 cooperates with a driven wheel 6 and both may be driven by electric motors, the blade either direct from a D.C. motor or through an electromagnetic clutch from a continuously running motor.
Patent GB-1474744-A (GB)
Title: Transistor amplifier
IPC: H03F3/20
Filed: 1974-09-20
Abstract: 1474744 Field effect transistor amplifiers SONY CORP 20 Sept 1974 [28 Sept 1973] 41145/74 Heading H3T [Also in Division H1] In an amplifier using field effect transistors having triode characteristics, the biasing is so arranged that the drain standing current is constant despite changes in the supply voltage. An embodiment comprises FETs F1a, F2a, F1b, F2b, Fig. 6, in a class B complementary parallelpush-pull arrangement with load Z L . The arrangement includes a pre-amplifier stage comprising pentode FETs 22, 23, 28, 29, the FETs 22, 23 forming an emitter-coupled pair have FETs 28, 29 in cascode connection as common emitter impedance. FETs 22, 23 drive a second stage comprising junction transistor 33, 34 coupled to the output FETs F1a, F2a, F1b, F2b by means of the biasing network 12. Network 12 comprises a first network 12a for biasing the transistors F1b, F2b and a corresponding second network 12b for biasing the transistors F1a F2a. Biasing network 12a comprises a bias potentiometer formed by resistors R3a, R4a and diode D1a which determines the bias on and current in, a transistor Q1a. The collector potential of this is determined by the ratio between resistors R1a, R2a and forms the bias for emitter follower Q2a which in turn biases the FETs F1b, F2b: the signal input from terminal t 2  is applied to the base of transistor Q2a via capacitor C1a. The Specification gives a relationship between the amplification factor Á of FETs F1b, F2b and the values of resistors R1a, R2a, R3a and F4a which gives constant drain current in the FETs, assuming the various supply potentials vary in fixed proportions. The biasing network 12b for the FETs F1a, F2a corresponds to network 12a, but resistor R4b is made variable so that the standing biasing potentials can be adjusted. Resistor 25 and a capacitor 26 provide overall negative feedback. In a simplified embodiment, FETs Fa, Fb, Fig. 7 are biased by means of potentiometers comprising Zener diodes D zb  D za  respectively and resistors R 3b  R 4b  and R 3a , R 4a  respectively and receive a signal input from pre-amplifier 11. The Specification also discloses construction details of the triodecharacteristic FETs (see Division H1).
Patent GB-1519310-A (GB)
Title: Composite materials
IPC: B32B5/08
Filed: 1975-10-10
Abstract: 1519310 Inserts SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 10 Oct 1975 [30 Oct 1974] 41535/75 Heading B5A An article is produced by moulding in two semi-moulds oriented fibres in a resinous matrix forming superficial material of the completed article and a preformed core of randomlydispersed fibres in a resinous matrix capable of polymerizing with the resin of the superficial material when the moulds are assembled and heated or by depositing the resinous matrix and fibres of the superficial material in the moulds and filling the remaining space with the preformed core and assembling the mould and curing the resins by heating.
Patent GB-895250-A (GB)
Title: Photographic diazotype material
IPC: G03C1/54
Filed: 1958-06-11
Abstract: 895,250. Photographic diazotype materials. CHEMISCHE FABRIEK L. VAN DER GRINTEN N.V. June 11, 1958 [June 17, 1957], No. 41827/61. Divided out of 895,249. Class 98(2). One-component materials for semi-wet development have a layer containing a diazo compound of formula where X represents an anion, R 1  an alkyl group of at most 4 carbon atoms, R 2  an alkyl group of at most 4 carbon atoms or an aralkyl group, that may or may not be substituted, of at most 7 carbon atoms, and R 3  an alkyl group of at most 4 carbon atoms, and at least one aliphatic saturated dicarboxylic acid selected from the group of succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, antidimethyl succinic, ethyl-succinic, #,#-dimethylglutaric, /3-methyl adipic aspartic and glutamic acids in a quantity equimolecularly corresponding to at least 0.2 grams per square metre of the light-sensitive surface. Moderately alkaline developers containing phloroglucinol yield stable brown-black dyes little affected by development fluctuations therewith. In an example baryta-coated paper is sensitised with a solution containing p-methylbenzylaminom - ethoxy - benzene, # - methyl adipic acid, caffeine and a polyvinyl acetate dispersion and the developer therefor comprises a phloroglucinol mixing of pH 10.2. 3-ethoxy 4-di-npropyl-amino benzene diazonium chloride is quoted as a further sensitiser. Numerous other diazo compounds and also auxiliary substances used in diazotype materials are referred to.
Patent GB-905371-A (GB)
Title: Method of producing uranium dioxide powder
IPC: C01G43/025
Filed: 1960-12-06
Abstract: Powdered VO2 is formed by thermally decomposing ammonium diuranate, which has been precipitated from an aqueous solution of a refined uranyl salt of 100 gm./l. or less U concentration, into UO3 or U3O8 which are then reduced and sintered in a current of a gas containing free H2, e.g. H2, H2 and N2, or NH3 (which decomposes to yield hydrogen at the temperature employed), at 1200 DEG  - 1750 DEG C. The precipitation conditions are a concentration of not more than 28% for the NH4OH which is added to the uranyl salt solution, e.g. uranyl nitrate or a mixture of HF and uranyl fluoride, at a rate of 100 g. NH3/Kg.U/min. or less at a reaction temperature of 100 DEG C. or less to give a pH, e.g. 6-7, sufficient to complete the precipitation. The ammonium diuranate may be filtered, dried, pulverized and then calcined for 3 hours at e.g. 400 DEG  or 700 DEG C. in a furnace in a current of air giving UO3 or U3O8 respectively, which is then reduced and sintered for 3 hours.  The UO2 produced is ground, after cooling, to a powder which is suitable for use as a nuclear fuel material, e.g. by swaying, pelleting and extrusion.
Patent GB-1438016-A (GB)
Title: Mounting of an optical filament in axial alignment with a second optical element
IPC: G02B6/38
Filed: 1973-09-06
Abstract: 1438016 Light guides PLESSEY CO Ltd 7 Aug 1974 [6 Sept 1973] 41947/73 Heading G2J A method of mounting an optical fibre 16 in axial alignment with another fibre or with a photo semi-conductor element 1 comprises securing the fibre 16 in a holder body 7 .. 9 having a circumferential wall extending parallel to the fibre so that the fibre projects axially therefrom, the body 7 .. 9 being supported through an elastic layer 11, e.g. of silicone rubber, in a housing 13. This housing has two pairs of coaxial screws 12a .. d to enable the body 7 .. 9 to be adjusted transversely of the filament 16. The body comprises a collet 7, and a bush 8 axially slidable in a bush 9 against a spring 10 by movement of a set screw 14, the bush 9 being bonded to the housing 13 by the rubber 11.
Patent GB-1191006-A (GB)
Title: Production of 3-Ketobutanol-(1)
IPC: C07C45/75
Filed: 1967-09-14
Abstract: 1,191,006. Production of 3-ketobutanol-(1)- BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept., 1967 [15 Sept., 1966], No. 41973/67. Heading C2C. 3-Ketobutanol-(1) is prepared by reacting acetone with aqueous formaldehyde solution at superatmospheric pressure and at a temperature of from 140-210‹ C. The mole ratio of acetone to formaldehyde is suitably 4 to 10 moles of acetone per mole of formaldehyde. The formaldehyde solution preferably is a concentrated solution of 30-40% strength by weight. The reaction pressure may vary from the vapour pressure of the reactants at that temperature to 500 atmospheres. The reaction may be carried out in the presence of an alkaline catalyst, preferably 0À1 to 5% by weight of a salt of an alkali metal with a carboxylic acid and after a period of 30 sees. to 5 minutes of the reaction completion the solution is cooled to below 100‹ C.
Patent GB-881135-A (GB)
Title: Furred-in enclosures for room ventilating units
IPC: F24D19/06
Filed: 1959-12-10
Abstract: 881,135. Ventilating unit enclosures. SVENSKA FLAKTFABRIKEN A.B. Dec. 10, 1959 [Dec. 10, 1958], No. 42030/59. Class 20(2) An enclosure for room ventilating units 2, Fig. 2 disposed at outer walls of buildings comprises a frame structure secured to the floor and/or wall to which is secured a vertical front wall 5 and a top wall 4 preferably level with a window sill 3, both the frame structure and walls being formed of sheet iron profiles of channel section with inwardly bent edges 10b, Fig. 5, said profiles being joined by flat bars 9a, 9b extending transversely within the profiles and connected by screws 8. Apertures 12 in the base of one of the profiles provides access to the screw 8 or to a nut thereon. The inwardly bent edges 10a, 10b of the profiles are serrated at 11 to increase the rigidity of the joint. The top wall 4 of the enclosure includes discharge grilles 15 and the front wall 5 includes some readily detachable profiles fixed by resilient rails 13, 14 to provide access to the ventilating unit.
Patent GB-1041027-A (GB)
Title: Improved process for producing acid imide derivatives
Inventor: NIELD ERIC
IPC: C07D207/452
Filed: 1963-10-25
Abstract: Cyclic imides are obtained by the cyclisation of unsaturated cis-a ,b -amic acids (i.e. contain the structure <FORM:1041027/C2/1> which are free of atomic groups which are basic in character, or mono N-substituted derivatives thereof in which the substituent is non-basic in character and is linked to the N atom through a C atom, by contacting them at 80-200 DEG  C. with an acid catalyst selected from SO3, H2SO4,  chlorosulphonic acid, polyphosphoric acids, pyrophosphoric acid, organic sulphonic acids, HOPO, HOPO2, (HO)3P, (HO)3PO, HP(OH)2, HPO-(OH)2, H2POH, H2PO.OH, RP(OH)2, RPO-(OH)2, HRPOH, RR1POH, HRPO.OH, and RR1PO.OH, where R and R1 are monovalent organic radicals linked to the P atom through a C atom.  Examples describe the cyclization of N - o - chlorophenyl - maleamic acid, N - o - nitrophenylmaleanic acid, N-phenylmaleamic acid, N-butylmaleamic acid, N-allylmaleamic acid.  Others are specified.  Not all the amic acid need be present initially.  A solvent may be used.  A polymerization inhibitor may be present.  The amic acid may be prepared in situ from an appropriate a ,b -ethylenically unsaturated cis-a ,b -dicarboxylic anhydride and a primary amine.
Patent GB-1061420-A (GB)
Title: Incineration method and apparatus therefor
IPC: F23J15/02
Filed: 1964-10-16
Abstract: 1,061,420. Incinerators. F. PEDERSEN. Oct. 16, 1964 [Oct. 16, 1963; March 5, 1964], No. 42437/64. Headings F4B and F4W. An incinerator for drying and burning refuse and waste materials comprises a chamber with electric heating elements 9 and 10 in the walls and hearth respectively, a charging opening 4 incorporating an air look, air openings 6 and 7, the latter also being used to supply oxygen or fuel, and a flue 5 leading to a secondary combustion chamber 11 also heated electrically. The flue system may incorporate a waste heat boiler, a cold water atomizer and spray, and a filter from which the water is drained off, Fig. 2 (not shown).
Patent GB-1508486-A (GB)
Title: Analogue-to-digital encoder
IPC: H03M1/00
Filed: 1975-10-17
Abstract: 1508486 Analogue to digital converter ASSOCIATION POUR LE DEVELOPPEMENT DE L'ENSEIGNEMENT DE LA RECHERCHE EN SYSTEMATIQUE APPLIQUEE 17 Oct 1975 42786/75 Heading H3H In an a-to-d converter an input voltage is conveyed with a set of reference voltages in parallel and true and complementary results of comparators 9#15 are summed as follows:- 9A+10B +11A...+15A=C;9B+10A+11B...+15B=D; if C>D then the output for the smallest bit on comparator 17 is 1, if C<D then 0. A similar operation on the results of comparators 10, 12, 14 gives the next bit on 18, or result of 12 on 19. Additional comparators (41, 42, Fig. 5, not shown) may be provided to inhibit comparators 17#19 for an out of range signal, and two or more modules may be connected in series with the inhibition comparators providing the next digit(s) (Fig. 6, not shown). Circuits of the various comparators used are shown and the device may be an integrated circuit.