baber/WOPTO huggingface dataset:
Patent GB-622147-A (GB)
Title: Improvements in shaft transmission couplings and the like
IPC: F16D3/78
Filed: 1946-12-23
Abstract: 622,147. Universal joints. BOOLE, R., and RUBBER BONDERS, Ltd. Dec. 23, 1946, No. 37719. [Class 80 (ii)] In a flexible shaft coupling, three units 1, 2 and 3 each comprising a pair of plates 4, 5 bonded to an intermediate rubber layer 6 are connected by axial sleeves 12 which alternately connect the outer plate 4 of an outer unit to the inner plate of the other outer unit and the adjacent plate of the inner unit. In each plate elongated apertures 7 and holes 10 are arranged alternately on a common pitch circle. The ends of each sleeve 12 are shouldered to form spigots 13 which engage the holes 10 in the plates and are provided with lugs 14: At one end, screws 15 connect the plates to the lugs 14 and at the other end a nut 17 is connected to adjacent plates and lugs 14 by bolts 16. Bolts 19 in shaft flanges 18 extend through the sleeves 12 and engage the nuts 17. In a modification the sleeves are internally threaded to receive the bolts 19. Two or more units may be used to form a coupling.
Patent GB-760774-A (GB)
Title: Improvements in method of making aluminium-containing hydrides
IPC: C01B6/00
Filed: 1954-12-31
Abstract: A metal aluminium hydride is reacted with an aluminium trihalide to form aluminium hydride and a halide of a metal other than aluminium, and the aluminium hydride, either in admixture with the halide, or preferably, after separation therefrom by filtration or centrifuging, is reacted with a hydride of a metal other than aluminium to form a metal aluminium hydride.  The metal of the original and product metal aluminium hydride may be an alkali or alkaline earth metal, and may be the same or different.  The aluminium halide may be chloride or bromide.  A liquid medium for the first reaction is preferably one in which both reactants and aluminium hydride are soluble, while the halide of the metal other than aluminium is insoluble and is precipitated.  The metal aluminium hydride should be dissolved in the liquid medium, e.g. tetrahydro-furan, and pyran, or diethyl ether, and the aluminium halide added thereto.  A liquid medium for the second reaction should be one in which aluminium hydride and the metal aluminium hydride produced are soluble, e.g. tetrahydro-furan and pyran, or glycol ethers.  If different liquid media are used in the two reactions, the liquid should be wholly or partially removed from the product of the first reaction before dissolution thereof in the liquid for the second reaction. The reactions should be effected in an air or moisture-free atmosphere of dry nitrogen or other inert gas, and may be effected at room or elevated temperature.  In examples, where aluminium chloride is used as the halide, and the metal hydride is added to the aluminium hydride solution in powdered form (1) lithium aluminium hydride is converted to sodium aluminium hydride using diethyl ether as first solvent and tetrahydrofuran as the second, (2) 3 mols. of sodium aluminium hydride are converted to 4 mols. of sodium aluminium hydride in tetrahydrofuran, (3) sodium aluminium hydride is converted to lithium aluminium hydride in tetrahydrofuran, and (4) lithium aluminium hydride is converted to calcium aluminium hydride using diethyl ether first and tetrahydrofuran second.  Reference is also made to the preparation of calcium aluminium hydride from sodium aluminium hydride in tetrahydrofuran.
Patent GB-1447157-A (GB)
Title: Process for producing carbon products in particular carbon foams
IPC: C01B31/00
Filed: 1974-08-30
Abstract: 1447157 Carbon product BAYER AG 30 Aug 1974 [31 Aug 1973] 37938/74 Heading C1A A carbon product, preferably a carbon foam is prepared by pyrolysing a foam comprising a polymer containing carbodiimide groups in an inert atmosphere, preferably by heating the foam at a rate of 100‹ to 2000‹ C. per hour in an inert atmosphere to a temperature of 600‹ to 3000‹ C., at which temperature it is held for 0À5 to 50 hours. The inert atmosphere may be of argon, helium, nitrogen or carbon dioxide. The density of the product is preferably below 200 kg/m.<SP>3</SP>. The carbodiimide foam may be subjected to an oxidative treatment prior to carbonization.
Patent GB-326272-A (GB)
Title: Improvements in or relating to sound record pick-up devices
IPC: H04R11/08
Filed: 1928-12-22
Abstract: 326,272. Turner, P. K., and Robinson, E., H. Dec. 22, 1928. Gramophone pick-ups.-The armature of a pickup device has its pivot disposed outside the magnet so that the armature extends through an aperture midway between the polar extremities into the polar air-gap, the stylus being directly secured to the armature fulcrum. A metal tube 5, plugged with resilient material 15, extends through the hole in the magnet, Figs. 1 and 2, and is carried by a plate 6 under which is fixed a cover plate 7 having a rectangular channel 8 which forms the armature bearing. The armature 9 is provided with pivot pins 11 fitted with rubber sleeves 12. a similar sleeve 10 separating the armature from the cover plate 7. The plates 6, 7, tube 5, and armature 9 may form a complete unit as shown in Figs. 6 and 7. The lower end of the armature receives the stylus 18 secured by a set screw 19. The plates 6, 7 are secured to the magnet so as to permit of longitudinal adjustment for centring the armature in the pole gap, elongated screw holes 27 being provided for this purpose. in a modified construction, Fig. 9, the armature is reduced in length, L-shaped extensions n', s' being fitted to the magnet poles.
Patent GB-1024812-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J7/00
Filed: 1962-10-08
Abstract: The invention comprises compounds having the formula <FORM:1024812/C2/1> wherein R is hydrogen or the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbons, the corresponding D 1, D 4, D 1,4, D 4,6 and D 1,4,6-compounds, and compounds having the formulae <FORM:1024812/C2/2> <FORM:1024812/C2/3> wherein Ac is the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbons, and processes for the preparation thereof by treating a 6a  - formyl - 3b ,17a  - 5a  - pregnan - 20 - one 3,17-diacylate with sulphur tetrafluoride to obtain 6a -difluoromethyl - 3b ,17a  - dihydroxy-5a  - pregnan - 20 - one 3,17 - diacylate (II), hydrolysing (II) to obtain 6a -difluoromethyl-3b , 17a  - dihydroxy - 5a  - pregnan - 20 - one - 17-acylate (III), and oxidizing (III) to obtain 6a -difluoromethyl - 17a  - hydroxy - 5a  - pregnane-3,20-dione 17-acylate (IV).  Dehydrogenation of (IV) may be effected in 1, 2 and 4, 5 positions with selenium dioxide or dibenzoyloxyselenium dioxide, by 2,4-halogenation and dehalogenation, with periodic acid, or with a microorganism of the genus Fusarium. D 4-Compounds are obtained by brominating (IV) in 2 and 4-positions, treating the 2,4-dibromo compound with sodium iodide to obtain a 2-iodo-4-bromosteroid, deiodinating the latter to form a 4-bromosteroid which is dehydrobrominated, or by subjecting a D 1,4-compound to hydrogenation, e.g. with the micro-organisms Arthrobactertumescens or S. olivaceous.  The D 1,4-compounds may in turn be obtained by dehydrogenating the D 4 compounds, e.g. with the micro-organisms Septomyxa or Corgnebacterium or with selenium dioxide D 1 compounds are obtained by halogenating compound (IV) in 2-position and dehydrohalogenating D 4,6 compounds are obtained by treating the D 4-compounds with chloranil D 1,4,6-compounds are obtained either by treating D 1 4-compounds with chloranil or by dehydrogenating D 4,6-compounds by means of Septomyxa or selenium dioxide.  Pharmaceutical compositions containing the above compounds and having progestational activity are administered orally or parenterally as pills, tablets, capsules, syrups, elixirs, suspensions and solutions
Patent GB-1195735-A (GB)
Title: Arrangement for controlling the charging of off-peak storage heaters
IPC: G05D23/24
Filed: 1967-08-18
Abstract: 1,195,735. Control systems for thermal storage heaters. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 18 Aug., 1967 [22 Aug., 1966; 22 April, 1967], No. 38094/67. Heading H2H. A control system for a thermal storage heater comprises means whereby the charging of the heater during off-peak tariff periods is rendered responsive to the ambient temperature during those periods. A bridge circuit comprising thermistors 1, 2 is subjected to the ambient temperature and is fed from a D.C. source 8 stabilized by a Zener diode 6. The output voltage of the bridge charges a capacitor 5 which charge is dependent on the ambient temperature. A second capacitor 11 is charged during the conductive periods of a thyristor 22, the voltages from the capacitors 5, 11 being applied to a transistor 19 which controls the gating pulses of the thyristor 22 by way of a transformer 20. Whenever the voltage UK derived from the capacitor 11 equals the voltage UE derived from the capacitor 5 no firing pulses appear at the gate of thyristor 22. Thus the heater elements 23 associated with the temperature sensitive cut-out devices for the storage heater are de-energized. Simultaneously the charging voltage for the capacitor 11 is removed. As the capacitor 11 discharges over the resistors 9, 10, the transistor 19 becomes operative to cause gating signals to appear at the thyristor 22 whereupon the heater elements 23 are energized and the capacitor 11 recharged. Thus the energized periods of the elements 23 are dependent upon the ambient temperature with the effect that the charge taken up by the thermal storage heaters is also dependent on such temperature. The transformer 13, diodes 16, 17 and potentiometer 18 are provided to compensate for the threshold voltage of the transistor 19. In a second embodiment the bridge circuit is supplied by way of a transformer from the A.C. supply.
Patent GB-364809-A (GB)
Title: Improvements in the actuation of sliding or rolling doors
IPC: E05F11/54
Filed: 1930-12-18
Abstract: 364,809. Operating doors by cords. BRIGGS, F., 136, Eccles Old Road, Pendleton, Manchester. Dec. 18, 1930, No. 38143. [Class 65 (i).] In a system for operating one or more sliding or rolling doors by ropes, the operating ropes are connected to the doors through springs, in order to maintain sufficient tension for friction winding and to avoid breakage due to overwinding or obstruction. The invention is shown in Fig. 1 applied to double sliding doors ; the operating rope a b is connected through springs to uprights A, B on the doors, and these two uprights are connected by ropes a<1>, bl to ensure the doors moving together. The springs and the ropes a<1>, b<1> are attached to the uprights by adjusting screws.
Patent GB-1161342-A (GB)
Title: Correction of Distortion Effects in Transversal Equalisers
IPC: H04L25/03
Filed: 1966-08-25
Abstract: 1,161,342. Transversal equalizers. WESTERN ELECTRIC CO. Inc. 25 Aug., 1966 [27 Aug., 1965], No. 38178/66. Heading H4R. The adaptive transversal equalizer of Specification 1,105,959 is modified to operate on multi-level signals where each data symbol has a number of permissible amplitude levels. In the modified apparatus, Fig. 1, the output of the transversal equalizer is applied from summer 16 to the sampler 17 which, under the control of clock 25, samples the transmitted data symbols at the appropriate time. The sampled symbol value is then passed to a multi-level slicer which converts the amplitude into a digital signal according to the reflected binary Gray code by operating on the analogue signal with a multi-level slicer, as shown in Fig. 3, which successively slices the input signal at zero level and full wave rectifies the signal before applying it to the succeeding slicer. The rectifier folds the signal about zero level and the successive slicers provide the Gray coded binary output in parallel form. One stage of rectification and slicing is provided in excess of that required for recovering the signal content of the sample and this additional digital signal, the (n + 1)<SP>th</SP> slicer output, is fed as an indication of the amplitude of the error over line 21. The actual polarity of the error is not defined by the n + 1 slicer output but is dependent on the preceding slicer outputs, lead 33 therefore provides an indication of the polarity of the digit supplied over lead 21, the Exclusive- or gate 27 then provides a signal to the delay 28 which indicates the actual polarity of the error. The remainder of the system is similar to that described in Specification 1,105,959 except that reversible counters 32 are provided in place of the low-pass filters and slicers of the previous application. The reversible counter is similar to an integrator with a long time constant in that the error signal, applied to the " EXCLUSIVE- OR " gates 31 together with the main interference component from the shift register stage 30 causes an increase, or a decrease, in the count of the appropriate counter 32. When the counter reaches a predetermined count the respective attenuator counter 15 has its count increased or decreased by one, to adjust the attenuator on the tap appropriately, and the reversible counter 32 is reset to zero.
Patent GB-1009337-A (GB)
Title: Magnesium oxide preparation
Inventor: SCHUBERT MANFRED
IPC: C01F5/10
Filed: 1961-10-26
Abstract: Magnesium oxide and hydrogen chloride are produced from magnesium chloride containing solutions by atomizing the solution under its own hydrostatic pressure through nozzles into a spray drier to yield a magnesium chloride hydrate, preferably the dihydrate, which is then heated to at least 800 DEG  C.  The magnesium chloride hydrate may be separated from the heating gases by cyclones.  The hydrate is then passed pneumatically or mechanically to a fission tube where it is drawn through with the heating gases to further cyclones which separate out the magnesium oxide formed from the heating gases which at this stage have a temperature of at least 800 DEG  C., the hydrogen chloride formed being carried off with the gases. Alternatively the magnesium oxide may be formed directly from magnesium chloride solutions in the spray drier if the admission temperature of the heating gas is at least 1000 DEG  C.
Patent GB-1102336-A (GB)
Title: Sintered electrodes capable of being wound
IPC: B22F7/04
Filed: 1965-09-08
Abstract: 1,102,336. Sintered electrode. VARTA A.G. 8 Sept., 1965 [8 Oct., 1964], No. 38410/65. Heading HlB. [Also in Division C7] A sintered electrode suitable for winding for galvanic cells is made by oxidizing a metal wire gauze, metal cloth or a perforated metal, e.g. by heating at 800‹ C. in air, coating with a dispersion of, e.g. Ni powder in methyl or carboxymethyl cellulose and sintering at 900- 1100‹ C. to form a layer 50-80 Á thick and then applying a coating of, e.g. Ni powder, as a dispersion in a cellulose derivative and polystyrene and sintering at 700-850‹ C. to form a porous layer of 80-85% porosity. The metal support may be Ni or perforated Ni-plated steel.
Patent GB-930006-A (GB)
Title: Improvements relating to the manufacture of caprolactam
Inventor: BALLARD DENIS GEORGE HAROLD
IPC: C07D201/10
Filed: 1960-11-09
Abstract: Caprolactam is prepared by reacting a compound containing a cyclohexyl group having a tertiary carbon atom in the ring with a nitrosylating agent capable of producing NO+ ions in the reaction medium, in the presence of sulphuric acid and optionally SO3 also, the reaction being carried out in the presence of carbon tetrachloride as a heat-transfer solvent.  The reactants may be those disclosed in Specifications 904,302, 904,413 and 912,034. Specification 924,098 also is referred to.
Patent GB-1524429-A (GB)
Title: Hollow polyvinyl alcohol fiber
IPC: B01D71/38
Filed: 1976-09-16
Abstract: 1524429 Dialysis membrane KURARAY CO Ltd 16 Sept 1976 [19 Sept 1975] 38470/76 Heading B1X [Also in Division B5] A dialysis membrane comprises a bundle of PVA hollow fibres each fibre having a degree of orientation (#) in the range 60% # # # 98% and a degree of swelling (zeta) in the range 1.05 # (zeta) # 1.80 times. The membrane may be used to recover or remove alkalis, acids or salts from solutions containing them, pH adjustment, ion adjustment and dehydrative concentration of aqueous solutions.
Patent GB-1485421-A (GB)
Title: Pre-heating of vitrifiable batch
IPC: C03B5/027
Filed: 1974-09-03
Abstract: 1485421 Preheating batch material GLAVERBEL-MECANIVER 3 Sept 1974 [5 Sept 1973] 38488/74 Heading C1M [Also in Division F4] In a process for preheating vitrifiable batch using the hot gases leaving a melting furnace 14 the material is fed on to an apertured support 121 directly exposed to the gases leaving the furnace and the material is retained on the support and heated thereon until it is in such a condition as to flow through the apertures of the support. The process may be carried out in the apparatus of Specification 1,485,422 or on a support 35, Fig. 3, on a shaft 30 forming a flow path for gases from an associated furnace, arranged so that its lower side forms a boundary of the gas flow path and having a gap between one side of the support and the inner wall of the shaft 30 through which the gases flow upwardly in contact with the support. There may be a number of superposed supports, some of which may be internally heated, or may be cooled. The melt may be heated by passing electric current through it before it flows through the support.
Patent GB-826507-A (GB)
Title: A new or improved letter rack
Inventor: EATWELL HENRY THOMAS
IPC: B42F7/12
Filed: 1956-12-19
Abstract: 826,507. Rack stands. HARVEY & CO. (LONDON) Ltd., G. A. Dec. 19, 1957 [Dec. 19, 1956], No. 38647/56. Class 52(3) [Also in Group XV] A letter rack comprises a plurality of letter trays and a pair of side supporting plates all formed from rigid sheet material, e.g. sheet steel, the trays and the side supporting plates being interengaged or inter-engageable by means of projecting lugs or the like on the one and slots for the reception of said lugs on the other, said lugs being adapted to receive locking elements to prevent disengagement of the trays and side supporting plates. As shown, each of the trays 1 has side flanges 3 and a back flange 4, each of the side flanges having a pair of spaced lugs 6 pressed outwardly therefrom. Each of the side supporting plates 7 has vertically spaced pairs of slots 8 for the reception of the lugs 6 and a protuberance 13 between each pair of slots. Locking elements 9 have outwardly directed flanges 10 at the bottoms and sides thereof and inwardly and downwardly directed flanges 11 at the tops thereof. When the lugs 6 on the trays have been passed through the slots 8 in the side supporting plates the flanges 11 of the locking elements 9 are engaged in the lugs 6 so as to lock the plates in position, apertures 12 in the flanges 11 engaging over the protuberances 13. The flanges 10 on the elements 9 may serve to hold a name card or the like. The front edges of the trays are turned over as at 5 and are apertured near each end to receive studs 14. Each tray is dimpled at 15 near the two rear corners. Studs 14 are secured to the bottom tray only and these and the dimples 15 on that tray serve as feet for the rack. In a modification the studs 14 are fitted on the lower ends of the side plates 7.
Patent GB-1200969-A (GB)
Title: PRODUCTS MANUFACTURED FROM THE COMPOSITE MATERIAL Al-Mg-Al2O3-MgO FOR NUCLEAR APPLICATIONS, AND METHODS OF OBTAINING THE PRODUCTS AND THE MATERIAL
Inventor: GUALANDI DANTE
IPC: B22F9/00
Filed: 1968-08-13
Abstract: 1,200,969. Reactors. EUROPEAN ATOMIC ENERGY COMMUNITY. 13 Aug., 1968 [31 Aug., 1967], No. 38716/68. Heading G6C. [Also in Division C7] A composite sintered material of Al-Mg- Al 2 O 3 -MgO suitable for nuclear fuel element cans and reactor pressure tubes is made by grinding Al-Mg alloy powder in an oxygen containing atmosphere and then sintering in vacuo. The Al-Mg powder preferably containing 2-5% Mg is formed by atomizing the molten alloy or a wire of the alloy, and the powder is collected in a container of Al or Al alloy. The powder is ground with stearic acid, stearates or a silicone in grinding mills of Al or Al alloy using balls of Al or Al alloy to produce a composite containing 2-20% Al 2 O 3  and 1-10% MgO. The powder is then cold compacted, sintered at 550-625 C. in vacuo at a pressure of 10<SP>-2</SP> to 10<SP>-5</SP> mm. Hg for 10-30 hours, hot pressed at 600 C. and 5-6 t/cm<SP>2</SP>. Extrusion and drawing operations may then be carried out to form tubes.
Patent GB-972032-A (GB)
Title: Modulated light transmission
Inventor: EAGLESFIELD CHARLES CECIL
IPC: H04B10/516
Filed: 1962-10-12
Abstract: 972,032. Light amplitude modulating systems; receiving arrangements. STANDARD TELEPHONES & CABLES Ltd. Oct. 12, 1962, No. 38757/62. Headings H3Q and H3R. Double sideband microwave modulated light is, by a half-silvered mirror 1, and further mirrors 2, 3 at 45 degrees in the path of one beam, converted into two-beams at right angles both impinging at 45 degrees on a half-silvered, mirror 4, and this results in the continued beams ML 1 , ML 2 , each having single side-band modulation, provided the path lengths differ by an odd multiple of quarter wavelengths of the light and of the modulation frequency. The S.S.B. beams may then easily be modulated, to recover the original modulation, or may be used for transmitting. A load 5 may absorb one or other of the beams.
Patent GB-1313672-A (GB)
Title: Electromagnetic counters
IPC: G06M1/02
Filed: 1970-08-12
Abstract: 1313672 Counters TAMURA ELECTRIC WORKS Ltd 12 Aug 1970 [13 Aug 1969] 38759/70 Headings G4D and G4H Adjacent modules of an electromagnetic stepping counter have the electromagnets 26a, 26b projecting from the related modules 10a, 10b into the other. The pallet of each electromagnet acts on a star-wheel 44 integral with a gear wheel 48, which meshes with a numeral wheel 50 and a print wheel 52. A wiper 58 on the inside of wheel 48 co-operates with terminals 56 of a printed circuit to provide electrical read-out. The numeral wheel 50 carries a permanent magnet with off-set pole pieces 71, 73 defining a narrow air gap 75 for operation of a reed switch 76 for transfer.
Patent GB-1309002-A (GB)
Title: Rotary sliding-vane pumps
IPC: F01C21/08
Filed: 1970-08-12
Abstract: 1309002 Grinding ZAHNRADFABRIK FRIEDRICHSHAFEN AG 19 Feb 1970 [27 Aug 1969] 38808/72 Divided out of 1309001 Heading B3D [Also in Division F1] To facilitate grinding of flat rectangular cranes 8 for a rotary sliding-vane pump, Fig. 1 (not shown), so as to give the edges 9 a convexly rounded shape in cross-section the vanes are clamped in a mandrel 11 between strips 15, 19, the mandrel being furnished with a handle 20 and placed between centres 12 parallel with the axis of the grinding wheel 21. Resilient lugs 17 on the strip 15 press the vanes against the strip 19, the latter having a shoulder 22 to align the vanes axially.
Patent GB-1468288-A (GB)
Title: Building elements and building structures
IPC: E04B2/64
Filed: 1975-08-15
Abstract: 1468288 Structural joints E J PAGET and J S PAGET 15 Aug 1975 [5 Sept 1974] 38918/74 Heading F2M [Also in Division E1] A rectangular slat 1, preferably reinforced concrete, has at least one edge rabbetted to provide a longitudinally extending tongue 4 of half the thickness of the slab and a pair of spaced recesses 6 each having a width equal to or slightly greater than the thickness of the slabs. The slabs are assembled as shown in Fig. 6 to form a lining for a soakaway pit, a lid comprising a concrete slab with a pipe inlet being provided. The recesses 6 may be inclined for the formation of non-rectangular tanks. Some of the slabs may be apertured for drainage.