baber/WOPTO huggingface dataset:
Patent GB-1133108-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J53/00
Filed: 1966-03-23
Abstract: 1,133,108. Steroids. UPJOHN CO. 23 March, 1966 [24 March, 1965], No. 26179/68. Divided out of 1,133,107. Heading C2U. [Also in Division A5] Novel compounds of the formulµ and and their corresponding novel 17α,21-dihydroxy pregnane derivatives are prepared by reacting a compound of formula with hydrazine or a monosubstituted hydrazine to give the derivatives III and IV, if desired treating the latter with an aqueous organic acid to give the ring opened products, and finally, if desired, acylating these ring opened pregnanes to give the corresponding 21-acylates. In the above formulµ R 2  is H, CH 3 , F, Cl or OCH 3 ; R 3  is H, the acyl radical of a C 1-16  hydrocarbon carboxylic acid, C 1-8  alkyl, C 3-8  cycloalkyl, C 7-13  aralkyl, C 6-12  aryl or a C 4-9  heterocyclic nucleus; R 4  is H or alkyl; X is =CH 2 , carbonyl, or #-hydroxymethylene, and Y is H or F with the proviso that where X is = CH 2 , Y is H.
Patent GB-1160225-A (GB)
Title: Process for the Reproduction of Information by Short-duration, High-intensity Exposure of a Heat-sensitive Material to Visible Light
Inventor: VRANCKEN MARCEL NICOLAS
IPC: B41M5/46
Filed: 1966-06-13
Abstract: 1,160,225. Lamps. GEVAERT-AGFA N.V. 13 June, 1966 [12 June, 1965], No. 26184/66. Heading F4R. [Also in Division G2] The glass cylinder surrounding a xenon discharge flash tube is (i) made of infra-red absorbing glass or (ii) made of non-infra-red absorbing glass and coated with a layer which reflects infra-red radiation and transmits visible light e.g. gold 130 Š thick and tin dioxide 3À2 Š thick or (iii) made of non-infra-red absorbing glass and half coated with a layer which reflects visible light but transmits infra-red radiation. Such lamps are used in thermographic processes (see Division G2), and preferably have an energy of 0À5 Watt sec per sq. cm.
Patent GB-646418-A (GB)
Title: Improvements relating to x-ray tubes
IPC: H01J35/10
Filed: 1948-10-08
Abstract: 646,418. X-ray tubes. CORDINGLY, N. C., and NEWTON VICTOR, Ltd. Oct. 8, 1948, No. 26313. [Class 39 (i)] An X-ray tube has a rotating anode 3 secured to a carrier 4 carried in a bearing housing 10 which engages a ring 12 secured to the re-entrant end 20 of the tube, the ring 12 being extended into a sealed cap 22 forming an extension of the envelope 1, so that the whole of the anode assembly can be inserted in the tube from the cathode end. The ring 12 is preferably externally oil-cooled, and the cap 22 is preferably of non-magnetic material and also oil-cooled externally.
Patent GB-463195-A (GB)
Title: Improvements in extensible pipe-joints for beer-lines and the like
IPC: F16L27/12
Filed: 1935-09-23
Abstract: 463,195. Pipe couplings. TREVALLON, F. J. Sept. 23, 1935, No. 26351. [Class 99 (i)] An extensible pipe coupling comprises a tube 15 slidable in a tube 10 and carrying at its end a packing sleeve 21 which extends beyond the tube, the tube 15 being clamped in position by a device comprising a nut 14 screwing on to the tube 10 and having a split extension 24 which is tightened by a screw 26. The space 28 is open to the atmosphere through gaps between packing pieces 19. The tube 15 has a flange 20 engaging a groove in the rubber sleeve 21 the ends of which are flared internally and externally. Specifications 9903 /97, 19469 /99, [both in Class 99], and 433,722 are referred to.
Patent GB-616443-A (GB)
Title: Production of polyamides
IPC: C08G69/26
Filed: 1946-09-02
Abstract: Synthetic fibre-forming polyamides are prepared by reacting in the absence of heat an ester of oxalic acid with a polyamino compound containing two primary amino groups and one or more secondary amino groups, the primary amino groups being separated from each other by a chain of at least three atoms and the reaction mixture containing substantially equivalent proportions of oxalic ester and primary amino groups.  The esters specified are ethyl, methyl, phenyl and cresyl oxalates and polyamino compounds mentioned are 1.16-diamino-7.10-diazahexadecane, triethylene tetramine, 1.13-diamino-7-azatridecane, 1.10-diamino-4.7-diazadecane and 4.41-bis-o -aminomethyl-diphenylamine.  The chains linking the primary amine groups may contain ketone atoms, e.g. oxygen or sulphur, or may be substituted, e.g. by alkyl, sulphone or hydroxy groups.  The reaction may be carried out in ethanol (with up to 10 per cent by weight of water) or in other alcohols, ethers and hydrocarbons or mixtures thereof, or in the absence of solvents or diluents.  After separation from the reaction mixture the polymers may be given a heat treatment in an inert atmosphere to increase its intrinsic viscosity.  This may be prepared in solution, e.g. in m-cresol.  Bases or acids, e.g. phosphoric or benzoic acid may be present as catalysts.  The products, if desired in the form of filaments, may be after-treated with carbon bisulphide, ethyl oxalate or ethyl carbonate or with a poly-isocyanate or isothiocyanate. Mixtures of the amines with other similar amines or with diamines may be employed.  The products may be used if desired after incorporation of plasticizers for production of filaments, films and other articles in known manner.  Examples describe the production of polymers from ethyl oxalate and 1.16-diamin-7.10-diazahexadecane. Specifications 610,304 and 610,311 are referred to.
Patent GB-770280-A (GB)
Title: Improvements relating to indicating the amplitude/frequency response of an electrical network
Inventor: PERCIVAL WILLIAM SPENCER
IPC: G01R27/32
Filed: 1954-09-15
Abstract: 770,280. Amplitude/frequency response measurement. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 15, 1954 [Sept. 25, 1953], No. 26405/53. Class 37. The amplitude/frequency response of an electrical transmission network is determined by generating repetitive pulses of short duration with regard to the pulse intervals and containing multiple Fourier frequency components of approximately equal amplitudes distributed over the working range, which are applied to the network input; the resultant output signals comprising a distorted pulse train whose Fourier components are analysed by selection by a variably tuned circuit and a measuring device responsive to the individual component amplitudes, which may comprise a C.R. oscillograph displaying amplitude components against a time-base synchronized with the variations of the tuned circuit. A television transmitter 1 under test comprises master oscillator 2 feeding modulator 3 receiving modulating video signals over channel 4, to feed radio frequency channel 5. A pulse generator 6 supplies to the video channel a train of repetitive square pulses 7 of duration shorter than the shortest pulse able to pass unchanged through the system, such that the amplitudes of the Fourier components thereof over the waveband of the channel are approximately equal, and the output of the R.F. channel 5 modulated by pulses 8 distorted by the limited video pass-band is received by high-Q resonant circuit 9 comprising inductance 10 variably tuned over the pass-band by automatically and cyclically variable capacitance 11. The band width of circuit 9 is of the order of the difference between adjacent Fourier components of the test waveforms and may comprise correction elements maintaining its shunt impedance constant over the tuning range, and the component signals developed thereacross are rectified and applied to the Y-plates of a C.R. oscillograph 14 whose X-plates receive a sweep voltage from saw-tooth generator 17 driven by a pulse generator 15 synchronized to produce a pulse when the capacitor 11 is varied through its mean value. The C.R. display represents a plot of frequency along the X-axis and video response to the transmitter along the Y-axis. The input pulses may be adjusted to profile to contain Fourier components more exactly equal in amplitude over the transmitter pass-band. Alternatively the rectified output may be applied to a meter and the frequency of the tuned circuit varied manually. The carrier frequency of the transmitter may be 45 Mc/s. and its video response band 0 to 3 Mc/s. with vestigial side-band modulation, while the input pulses may have duration 0.07 microsecond at a repetition frequency of 100 Kc/s. and the resonant circuit 9 may have Q=500 tunable over the range 41.5 to 47.5 Mc/s. The apparatus is also applicable to testing the frequency response of filters, amplifiers and other networks.
Patent GB-227544-A (GB)
Title: Improvements in apparatus for separating liquids of different specific gravities, specially applicable for the separation of oil from water
IPC: B01D17/02
Filed: 1923-10-24
Abstract: 227,544. Comyn, B. D., and White, W. A. Oct. 24, 1923. Separating by gravity. - A liquid mixture is delivered to apparatus for separating liquids of different density, such as oil and water, in several non- vertical streams which are caused to impinge so that the horizontal components of the velocities of the several streams are mutually destroyed. A separation chamber is provided with an inclined surface depending therein against which the mixture impinges in its upwards flow so as to effect coalescence of the globules of oil or lighter liquid. The mixture is delivered through a pipe 1 into an open receptacle 2, in which pulsations due to the pumps are neutralized, and overflows into an outer chamber 4. passing thence by symmetrically arranged pipes 6 into a lower receiving chamber 7. The oil and water separate as the mixture rises in the surrounding space 8, globules of oil coalescing on the lower surface of the chamber 4 and the oil collecting in the narrow space 8a and overflowing through slots 10. The water passes under a cylindrical partition 9 and oil still retained separates with the aid of the inclined lower surface of an oil receiver 15 and rises into the narrow space 11. This oil with that from the slots 10 passes through slots 14 into the receiver 15 and is discharged by pipes 25<a>, 25. The water passes over an inner wall 16 and under a partition 18 to an outer belt 19 and thence over a lip 20 to an outlet 22. Steam heating pipes 23, 23a, 24, 42 are provided. The partition 18 with the receiver 15 and slot 14 can be adjusted vertically by means of hard wheels 29 and screwed studs 30. The partition 9 with the slots 10 can be similarly adjusted.
Patent GB-1021339-A (GB)
Title: Improvements in or relating to circuit arrangements for obtaining a stabilized supply voltage
IPC: H02M7/15
Filed: 1964-06-26
Abstract: 1, 021, 339. Automatic voltage control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 26,1964 [July 1, 1963; April 10, 1964], No. 26537/64. Heading G3R. A circuit for obtaining a stabilized voltage across a load 6 supplied from an a.c. source 1 over a controlled rectifier 2 includes a discharge tube 20 which is connected with a resistor 21 across the load and which illuminates a photosensitive resistor 10 in a phase shifting network 18 controlling the rectifier 2, the arrangement being such that variations in the voltage across the load, and hence variations in the light emitted by the tube'20, result in corresponding variations in the phase and/or amplitude of the ignition voltage of the rectifier 2 whereby the output from the rectifier tends to remain constant. A filament lamp and a Zener diode may replace the elements 20 and 21, and the rectifier 2 may be a semiconductor component or a thyratron. The phase shifting network may be as shown in Fig. 1, or may be designed so that the control voltage for the rectifier is constituted by two components differing in phase by approximately 180 degrees (Figs. 3 to 8, not shown). A modification which provides compensation for the consequences of ageing of the lightemitting element 20 is described with reference to Fig. 10 (not shown).
Patent GB-701284-A (GB)
Title: Improvements relating to safety elements
IPC: B02C23/04
Filed: 1951-11-13
Abstract: 701,284. Vibrating-jaw crushers. MUCCHI, L Nov. 13. 1951. No. 26574/51. Class 59 [Also in Group XXIV] A safety element for use in crushing or other machines comprises two members 1, 2 adapted to transmit a compressive force and acting on each other at two points on opposite sides of the line of action of the force, the members being in direct contact at one of the points (4. 5), so that they can turn at this point about an axis normal to the line of action of the force, and in indirect contact at the other (4<SP>1</SP>, 5<SP>1</SP>) through an elastic means 3 which is preloaded to a load equal to that fraction of the limiting load on the element which acts on the elastic means, the load to produce unit deflection of the means 3 being smaller than the increase in the fractional load due to unit deflection of the elastic means, and the maximum load on the means 3. corresponding to its maximum deflection which is reached in the dead-centre position, being less than the limiting lead on the element. As applied to a crushing machine (not shown) in which a movable jaw is swung towards a stationary jaw by a member reciprocated vertically by an eccentric, the safety strut is positioned between one side of the member and a fixed part of the machine and, with a further strut located between the other side of the member and the movable jaw, has a toggle action in swinging the jaw. If uncrushable material prevents swinging of the jaw upon vertical movement of the member and the limiting load on the element is exceeded, the spring 6 will be further compressed until the element collapses and assumes the attitude illustrated in Fig. 3d, the movable jaw swinging away from the stationary jaw into engagement with a fixed stop. The spring 6 is pre-loaded by a bolt 8, Fig. 2, and a link 11 is provided between the members 1, 2 to hold them together after the toggle has been upset.
Patent GB-687438-A (GB)
Title: Endless tracks for vehicles
IPC: B62D55/24
Filed: 1950-11-01
Abstract: 687,438. Endless tracks for vehicles. BOMBARDIER, J. A. Nov. 1, 1950, No. 26621/50. Class 79(i) A vehicular endless track comprises longitudinally spaced cleats curved to follow the cross-sectional curvature of a tyre, each cleat being provided on its concave face with truncated conoidal members adapted to engage grooves in the tyre tread, and two endless flexible belts secured to lateral extensions of the cleats. As shown the endless track comprises the transverse cleats 22, the endless flexible belts 24 secured to the extensions 23 of the cleats by plates 25 and bolts 26, and the truncated conical members 27 being formed of rubber and bolted to the cleats, the members 27 engaging the grooves 29 in the tyre of a wheel 20. The track is shown applied to an endless track vehicle having features of Specification 679,896.
Patent GB-982849-A (GB)
Title: Film holders for strip film
IPC: G03B17/26
Filed: 1962-07-11
Abstract: 982,849. Film holders. GENERAL MAGNAPLATE CORPORATION. July 11, 1962 [Aug. 3, 1961], No. 26645/62. Heading G2A. [Also in Division H5] A film holder 10 comprises a pair of flexible sheet members 12, 14, Fig. 1, arranged in overlying relationship and adapted to receive a length of film 16 interposed between them, each member having an area opaque to visible light at least equal to the exposure dimensions of the film, and flexible interconnecting means 24 for the sheet members which permit longitudinal and lateral relative movement between the sheet members. The sheet members are preferably a laminar construction as described in Specification 982,848. The required length of the film holder 10 may be drawn off a roll of such material, the exposed ends of the material being covered with a cap structure 34. In further embodiments, Figs. 8, 9, the sheet members may be of different widths and the interconnecting means may comprise upper and lower tape elements.
Patent GB-1431342-A (GB)
Title: Transferring plies of limp sheet material
IPC: B65H3/22
Filed: 1973-06-05
Abstract: 1431342 Feeding and delivering sheets USM CORP 5 June 1973 [6 June 1972] 26657/73 Heading B8R Sheets W, Figs. 1 and 3, are separated singly from the top of a pile S by a pick-up device comprising a tubular carrier 18 secured to a carriage 16, and vertically slidable within the carrier a piston 28 constituting a support for ply-gripping means 10 comprising a first jaw member 42, Figs. 1, 2 and 3, slidable within limits in the piston and having a lower eccentric portion 48 carrying in a slot 50 a V-shaped tooth 54 defining a clamping shelf 58, and a second jaw member 60 carrying teeth 66 and pivoted by a pin 62 in a slot 64 of the member 42, so as to be movable between an initial position, Fig. 1, and a clamping position, Fig. 3, cooperating with the shelf 58, the initial position and thus the amount of travel to clamping position is adjustable by a ring nut 70 settable in a plurality of positions. The force opposing rising of the member 42 in the piston 28 and thus pressure on the pile is adjustable by a screw engaging a ball detent 80. The pile is raised by a cyclical elevator mechanism until the top sheet engages a sensor in the form of a hollow tube 84 connected to an air pressure source. In operation, as the pile is raised, the member 42 yields upwardly with a resistance which bulges the sheets in the locality P, where the top sheet comes into engagement with the teeth 66, the member 60 being moved by the ring 70 into clamping position with a fold of the sheet gripped between the teeth and the shelf 58. Closing by the sheet of the tube 84 causes a pressure build-up which produces a signal to lower the pile and to exhaust a chamber 38 in the piston, whereupon a spring 86 raises the piston together with the top sheet, whereupon, by means of a cam pin 32 and part-helical slot 26, the piston is rotated to twist the sheet locally to disrupt cleavage to the next sheet. The pick-up device with the sheet is then moved laterally with the carriage 16 to place the sheet in deforming position, where a switch acts to pressure a chamber 36 in the carrier 18 so as to force down the piston 28, which is thus rotated to untwist the sheet and to open a port 40 to pressure the chamber 38 and force the member 42 down so as to allow the member 60 to be returned to its initial position by a spring 74 to release the sheet for depositing. A plurality of pick-up devices may be used spaced over the sheet and supported on the carriage 16, and the pistons of some may rotate in opposite directions from others.
Patent GB-190286-A (GB)
Title: Water-soluble compounds of diethyl-barbituric acid and phenyl-ethyl barbituric acidand process of manufacturing the same
Filed: 1921-10-08
Abstract: The water-soluble calcium and magnesium salts of C-C-diethyl and C-C-phenyethyl-barbituric acids are obtained by digesting a hot saturated solution of the acid with the theoretical quantity of freshly precipitated magnesium carbonate, which has not yet assumed the crystalline state, or of calcium or magnesium hydroxide, filtering the solution obtained and concentrating and drying in vacuo at as low a temperature as possible.  An example shows the treatment with freshly precipitated magnesium hydroxide. It is stated that the salts thus obtained are easily absorbable and give permanent mixtures with the alkaline earth salts of acetylsalicyclic acid.
Patent GB-399649-A (GB)
Title: Improvements in and relating to pulleys
IPC: F16H55/38
Filed: 1932-09-27
Abstract: 399,649. Surfacing pulleys. SLOAN, D. G. D., Williams, Western Australia. Sept. 27, 1932, No. 26769. Drawings to Specification. [Class 80 (i).] A fabric band is secured around a pulley and a vulcanized rubber band is formed on the face of the fabric band. In making the pulley, the surface of an ordinary pulley may be roughened, adhesive, such as rubber solution, applied, a canvas band stretched in position, and a rubber band, preferably unvulcanized, wrapped on to the fabric band and vulcanized in position.
Patent GB-1020731-A (GB)
Title: Hydrocarbon cracking catalyst
IPC: B01J21/16
Filed: 1964-06-29
Abstract: Petroleum hydrocarbons may be cracked by contacting them with a calcium oxide-silica-alumina catalyst prepared by reacting calcium oxide with a silica-alumina gel and drying the resulting composite. The catalyst may contain from 1 to 10% calcium oxide. Examples compare cracking products using the above catalyst with alumina and magnesia-silica-alumina.ALSO:A silica alumina calcium oxide catalyst for hydrocarbon conversion is prepared by reacting finely divided calcium oxide preferably less than 1m  per particle with a silica alumina gel to form a silica alumina calcium oxide composite and drying the composite.  The composite may contain from 1-10% calcium oxide, and may be dried at a temperature of 800-1400  DEG F.  The calcium oxide may be calcined before it is added to a silica-alumina hydrogel or to a slurry of silica alumina hydrogel or xerogel.
Patent GB-1426144-A (GB)
Title: Electrophoretic method for forming an ypsilon-alumina coating on a refractory article
IPC: B01D53/86
Filed: 1974-06-18
Abstract: 1426144 Electro-deposition of γ-alumina NISSAN MOTOR CO Ltd 18 June 1974 [31 July 1973] 26844/74 Heading C7B A refractory substrate e.g. of cordierite, is electroless-plated e.g. with Ni, Cr, Co or Cu, and then electro-coated with γ-alumina. The substrate may be monolithic, in tablet form or particulate. Electroless-plating is by conventional methods. An aqueous γ-alumina dispersion containing colloidal alumina may be used with the plated substrate as cathode. The γ-alumina coating may be impregnated with e.g. Pt, Ru, Rh or Pd and is then useful as a detoxifying catalyst for motor exhaust gases.
Patent GB-939808-A (GB)
Title: Photo sensitive paper developing device
Inventor: AIZAWA TATSUO
IPC: G03D5/06
Filed: 1960-08-04
Abstract: 939,808. Rollers. S. MITA. Aug. 4, 1960, No. 27020/60. Class 42 (2). [Also in Group XX] In a photographic developing machine, the rollers between which the photographic paper passes to be coated with developer are surfaced with resilient material, and have a plurality of deep thin circumferential slits spaced apart along the length of the roller, capable of retaining liquid therein by capillary action. The paper is delivered from the printing section through a guide 38 to the nip between primary roller 25 and secondary roller 28. Roller 25 dips partially into the developer solution contained in a bath 11 which is supported freely, without fastening, in side frame 1 of the developing apparatus. Both rollers are of resilient material, and have deep circumferential slits 26, 29, respectively, closely spaced along the length of the rollers. This construction allows the even application of developer liquid to the paper by roller 25 ; and since the two rollers are in contact, roller 28 applies liquid in lesser degree to the back of the paper also, which prevents distortion thereof.
Patent GB-1454674-A (GB)
Title: Tensiometers
IPC: G01N33/24
Filed: 1974-06-18
Abstract: 1454674 Mercury tensiometer L SAVVIDES 18 June 1974 27036/74 Heading G1S A mercury tensiometer for measuring the moisture suction of soil comprises an outer body 1 for containing water, the outer body having a water permeable part 4, and a measuring unit 2 dispersed within the outer body, the measuring unit comprising a closed inner body 6 containing a pool of mercury 7, a capillary tube 8 immersed at its lower end in the mercury and communicating at its upper end with the outer body, and a tube 9 connecting the inner body to atmosphere. As shown, the measuring unit 2 is suspended from stopper 5 by the tube 9. The outer and inner bodies and the tube 8 are preferably of transparent plastics material. In use, the outer body is filled with water, and the measuring unit inserted. As the stopper is pushed into position, water from the outer body is forced down tube 8 to displace air therefrom. Any water entering the inner body may be removed - through tube 9 by turning the tensiometer upside down. The lower end of the tensiometer is placed in the soil, and the height to which the mercury rises in tube 8 in a predetermined time is measured.