baber/WOPTO huggingface dataset:
Patent GB-731515-A (GB)
Title: Improvements in the manufacture of non-cylindrical hollow rounded pre-stressed concrete elements such as aircraft elements
IPC: B28B23/12
Filed: 1953-12-07
Abstract: 731,515. Aircraft framework. BREGUET, L. Dec. 7, 1953 [Dec. 10, 1952], No. 33984/53. Class 4. [Also in Groups V and X] Hollow rounded articles, e.g. aircraft hull and fuselage parts, of pre-stressed concrete, have main and secondary systems of reinforcements, one system being transverse to the other, the arrangement being such that the tensioning of the main reinforcements produces lateral deflections of the secondary reinforcements which are thereby tensioned. As shown, the article is cast between an outer mould 5a, comprising two hinged half shells, and a core 5, the latter having projectible pins 6 with notched tips to receive the circular secondary reinforcements 3. The main reinforcements 2 cross the reinforcements 3 at points between the pins 6 and are anchored at one end in a ring 18 which becomes an integral part of the article. The other ends are attached to a flange 16 of a sliding cap 14 actuated by jacks 15. The core 5 has rings 11 through which the pins 6 slide, annular air bags 12 being housed between the rings 11 to bear against sectors 13. When the core 5 has received its reinforcements 2, 3, the reinforcements 2 are tensioned by the jacks 15, and this pulls the reinforcements 3 into the waved form shown in Fig. 4. The core is now inserted in the mould 5a which embraces the rings 17, 18, and the concrete is filled into the mould, e.g. through the top, the mould being vibrated by means attached at 14b to the cover 14. The air bags 12 are now inflated and the sectors 13 are pressed radially outwards. When the concrete has set, the mould 5a is opened and the article is removed. The pins 6 are connected by bell-cranks 31 to a vertically slidable central shaft 32 which is locked by a nut not shown, threaded thereon and bearing on an upper web of the core 5. When the reinforcements 2 are cut between the flange 16 and the ring 17, the jacks 15 are operated to pull the shaft 32 down to withdraw the pins 6. The mould and core may be resiliently suspended on springs 29. The two shells 21, 22 of the mould 5 are pivoted at 23, 24 and may be lined internally with contiguous bars 27, arranged somewhat like barrel staves, bearing on peripheral ribs 28.
Patent GB-1207405-A (GB)
Title: The production of aluminium and aluminium coatings
IPC: C22B21/00
Filed: 1968-07-17
Abstract: 1,207,405. Alkyl aluminium hydrides. ETHYL CORP. 17 July, 1968 [17 July, 1967], No. 34066/68. Heading C2J. [Also in Division C7] Trialkyl aluminium is produced together with Al and H 2  by reacting an alkyl aluminium hydride in the presence of a tertiary amine and a catalyst at a temperature and for a time insufficient to form substantial amounts of hydrocarbon. The reaction may take place at temperatures from room temperature to 260‹ C., and under pressures from ambient to 5000 p.s.i. at temperatures of 160-220‹ C. the reaction time is usually 1-10 minutes. The hydride may be the mono-, di-, or sesquihydride, and the reaction mixture may contain the relatively stable trialkyl aluminium as a heat carrier. The tertiary amine, which may be present in the form of a complex with the hydride, may act as a reaction diluent, or other diluents such as inert, liquid hydrocarbons may be used. The catalysts are preferably compounds of the formula MX 4  where M is Ti, Zr, Hf or V and X is Cl, Br, I or an alkoxy group. Trialkyl aluminium hydride may be formed by reacting Al with an olefin and hydrogen, in the presence of an alkyl aluminium catalyst, at elevated temperatures and pressures. Alternatively Al may be reacted with trialkylaluminium and hydrogen, preferably in the presence of sodium or sodium hydride to enhance the reactivity.
Patent GB-1098964-A (GB)
Title: Frequency synchronising system
IPC: H03L7/20
Filed: 1966-07-29
Abstract: 1,098,964. Automatic frequency control systems; frequency discriminators. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 29, 1966 [Aug. 5, 1965; Aug. 14, 1966], No. 34200/66. Heading H3A. The frequency of a variable frequency oscillator 2 is swept by a sawtooth generator 3 over a range, including several harmonics of the frequency f 1  of a reference pulse generator 1 with which the oscillator output is mixed in a modulator 8. The output of the modulator has a constant amplitude if the frequency f 0  of the oscillator 2 is equal to a harmonic of f 1 ; otherwise the amplitude varies, and the amplitude modulation is detected by a rectifier 10 and passed through a low-pass filter 12 to provide a control signal to be applied to a capacitance diode controlling the frequency of oscillator 2. The output of rectifier 10 (or a succeeding amplifier 11) is coupled to a pulse former 13 which responds to each case of synchronization with a harmonic and advances a counter 6 which was started by comparator 4 when the frequency f 0  exceeded the frequency of a crystal oscillator 5 which is equal to the first multiple of f 1  within the swept range of oscillator 2. When the counter 6 reaches a desired count it stops the sawtooth generator 3 and opens gate 15 to allow the frequency of oscillator 2 to be controlled by the control signal from the filter 12. In an alternative mode of operation which can be used when the A.F.C. system has a wide hold range, switches 16-18 are put in their other positions. The oscillator 2 is then held at one harmonic whilst the sawtooth generator 3 continues its sweep, and jumps to the neighbourhood of the next harmonic when the sweep exceeds the hold-in range. Frequency discriminator.-The variable frequency f 0  is fed to one diagonal of a diode bridge (19, Fig. 2, not shown), and the pulse signal f 1  to the other diagonal which is coupled by a transformer (21) to the base of a transistor (22) feeding a coil (23). The energy stored in the coil during each pulse is discharged at the end of the pulse into a rectifier circuit (10) providing an output via a low-pass filter (12). In a modification (Fig. 3, not shown), the two signals f 0  and f 1  are supplied to the bases of respective transistors (32, 34) via transformers (33, 35), the emitter-collector paths of the transistors being connected in series between a power supply (U B ) and the base of the output transistor (22) operating in the same manner as in Fig. 2. In either case the output is constant if f 0  = nf 1  and otherwise varies at the difference frequency.
Patent GB-468192-A (GB)
Title: Toy group of aeroplanes, tanks or other toys for use in multiple formation
IPC: A63H27/00
Filed: 1936-12-14
Abstract: 468,192. Mechanical toys. SCHMID, M. Dec. 14, 1936, No. 34244. [Class 132 (iii)] In a group of toy aeroplanes, armoured cars, tanks, or the like, two or more auxiliary toys i, h are. hingedly connected with a propelling toy a by links f of resilient material so that they are capable of relative displacement in the same plane for producing different formations. The propellers of the auxiliary toys i, h are rotated from the runner wheels.
Patent GB-1122422-A (GB)
Title: Method of making hydrazinium diperchlorate
Inventor: PAUSTIAN JOHN EARLE
IPC: C01B21/16
Filed: 1964-08-21
Abstract: Hydrazinium diperchlorate, substantially free from hydrazinium monoperchlorate, is made by reacting one molar part of aqueous hydrazine with more than two molar parts of aqueous perchloric acid. The reaction product may be evaporated to remove exces perchloric acid, and then hydrazinium diperchlorate filtered off and dried to form the anhydrous salt.  Alternatively, the reaction product is evaporated to dryness without filtering. Instead of drying, the hydrated salt may be distilled with a compound which forms an azeotrope with water; examples given of such compounds include benzene, trichloroethylene, fluorinated aliphatic hydrocarbons, and hydrochloric and perchloric acids. The hydrazinium diperchlorate may be converted to rounded crystal form by contact with an at least 70% by weight solution of perchloric acid.  The salt is suitable for use as an oxidizer mixed with a polymeric fuel component to form a rocket propellant as described in United States Specification 3,006,743
Patent GB-924017-A (GB)
Title: Improvements in or relating to polarising devices for printed circuit connectors
Inventor: BLIGHT DENNIS JACK
IPC: H01R12/70
Filed: 1960-10-07
Abstract: 924,017. Two-part couplings. BELLING & LEE Ltd. July 21, 1961 [Oct. 7, 1960], No. 34422/60. Class 38 (1). A printed circuit connector has at least one removable polarizing baffle adapted to fit in a corresponding notch or notches on the edge of the printed circuit plate. As described the polarising baffle has four spigots 13-16 (Fig. 2) which fit into spaces 9 above any two adjacent pairs of contacts 7, a bridge piece 19 of the baffle being adapted to engage a notch 22 between contacts 21 of the printed circuit plate 20. Specification 843,797 is referred to.
Patent GB-1509942-A (GB)
Title: Vehicle with variable speed transmission
IPC: B62M9/06
Filed: 1975-08-19
Abstract: 1509942 Variable speed gear HARRIS INTERNATIONAL Inc 19 Aug 1975 34452/75 Heading F2D [Also in Division B7]  Speed ratios ranging steplessly from one-toone upwards to overdrives only, are provided on a pedal cycle by a rotatable inner shaft 65 adjustable radially within a wheel hub 27 by a rider control 95 to vary the speed ratio imparted to the hub by the shaft through oneway clutches 85 connected to the hub through links 83. The hub 27 bears an the frame at one side on a stub shaft 39 and at the other on a fixed housing 45, supporting, on a pivot 59, a forked arm 57 carrying the inner shaft 65 on bearings 67, 69, the shaft being driven through a sprocket 71 and chain 75 by conventional pedals or by oscillating pedal levers 135, Figs. 6 and 8. The support arm 57 is biased downwards to a concentric one-to-one setting determined by a stop screw 133, and is pivoted upwards to overdrives by tension on a manual cable 95 acting through a linear one-way lock 93, Fig. 4, which locks the arm 57 against downward movement in selected settings, and comprises balls 99 loaded by a spring 129 on to a wedge surface on a plunger 117 connected by a flexible cable 111 to the pivoted arm 57 and moved upwardly freely by tension on the control cable 95, and downwardly by push on the control cable to release the wedging balls 99. In Figs. 6 and 8 the chain 75a driving the inner shaft is driven by pedal levers 135 oscillated about frame pivots 137 to pull cables 141 attached to pulleys 143 carried eccentrically on a shaft 156 connected by one-way clutches 155 to a sleeve 147 carrying a sprocket 157 providing a one-way drive to the chain 75a, the eccentricity producing variable leverage.
Patent GB-1533544-A (GB)
Title: Phase-locked loop circuit
IPC: H03L7/107
Filed: 1977-08-17
Abstract: 1533544 APC systems PHILIPS' GLOEILAMPENFABRIEKEN NV 17 Aug 1977 [20 Aug 1976] 34502/77 Heading H3A In a phase locked loop including a loop filter 7 coupled between the loop phase comparator 1 and a controlled oscillator 2 and switchable between a wide-band state and a narrow band state before and after synchronization, loss of lock (causing a delay in the final synchronization) at switching to narrow-band state due to noise and sideband components of the reference signal at 5 is avoided by an arrangement 27 for determining the instants at which the value of a signal stored in an element 18 of the filter 7 equals its average value and delaying switching of the filter to its second state by a control circuit 20 until a said instant occurs. The control circuit 20 includes a bistable 21 set to a first state when a lock indication signal is absent at 24 and to a second state when a lock indication signal at 24 is applied via a delay circuit 35 to one input of a pulse generator 34 at the same time as an edge of a rectangular signal produced by the arrangement 27 occurs and corresponding to one of the instants. Figs. 4, 5 (not shown) relate to modifications of the arrangement 27 and the filter 7 respectively.
Patent GB-169946-A (GB)
IPC: C11D13/14
Filed: 1920-12-08
Abstract: 169,946. Bailly, M. Oct. 5, 1920, [Convention date]. Addition to 156,090. Void [Published under Sect. 91 of the Act]. Soap tablets containing bent wire or other metal reinforcements b are moulded in halves a each with a central longitudinal recess a<6> for the reinforcement, a longitudinal recess a<5> towards one side, and a corresponding projection a' towards the other side, and the halves are fitted together and pressed so that the projections a<4> and recesses a<5> interlock and the reinforcement is embedded, preferably with the exception of the end portions H, by which it may be hung up. The mould for forming each half consists of a lower metal block recessed to the outer contour of the half tablet, and an upper block c mounted on guides d and provided with projections c<6>, c<5> for making the recesses a<6>, a<5>, a recess c<4> for making the projection a<4>, and a recess c<2> bounded by the walls c<3> to produce the desired meeting surface. The two half tablets are pressed together between upper and lower plates f, Fig. 12, each having a recess f<2> corresponding to the contour of the tablet, a raised edge f<3> and two inner projections to shape the ends of the tablet to expcse the ends of the reinforcement.
Patent GB-367044-A (GB)
Title: Improvements relating to the making and projection of photographic films for coloured pictures
IPC: G03C7/00
Filed: 1930-11-18
Abstract: 367,044. Colour photography and kinematography. BURGER, P. L., 14, Hartington Road, Twickenham, Middlesex, and PICTORIAL SCREENS, Ltd., 231, Strand, London. Nov. 18, 1930, No. 34708. [Classes 97 (i) and 98 (ii).] Colour-record pictures are taken in a camera wherein an image of the object 3, Fig. 1, is focused by a lens 2 on to a multicolour screen 1, and this image is focused in turn by a lens 4 on to the sensitive film 5. The record so produced is projected in apparatus wherein an image of the record 5<1>, Fig. 2, passing through a gate 6, is projected by a lens 7 in register on to a multicolour screen 1<1> identical with or similar to the screen 1, or such a screen in which one colour is replaced by white, and this image is in turn projected on to the viewing screen 10 by a lens 9. The screens 1, 1<1> may be transparent or translucent, and may comprise for example, recurring series of red, blue, and green parallel stripes; or the screen 1 may have red and green stripes, and the screen 11 red and white stripes. The screen 1 and lens 2, and the screen 1<1> and lens 9 may be arranged as attachments respectively to the camera and projector.
Patent GB-971264-A (GB)
Title: Improvements in ceramic compositions
IPC: C04B35/50
Filed: 1961-09-27
Abstract: A ceramic composition having piezo-electric properties consists of lead titanate and lead zirconate in mol. ratios of from 60 : 40 to 40 : 60 and 0.5-3.0 weight per cent of antimony oxide or 0.5-4.0 weight per cent of bismuth oxide or a combined weight per cent of 0.5-4.0 of both antimony oxide and bismuth oxide.  Up to 15 mol. per cent of the lead may be replaced by barium.  The ceramics are preferably prepared by weighing, wet milling, filtering and drying a mixture of lead monoxide, titania, zirconia, barium carbonate, and antimony oxide or bismuth oxide, which is then calcined in open saggers at about 1550 DEG  F. for two hours.  The composition may then be remilled, filtered, dried, mixed with the usual binders and fabricated to the required shape. The binders are removed by firing in open settings in air at 1200-1400 DEG  F. for half an hour.  The ceramic is then subsequently fired to maturation in sealed refractories usually in the presence of a cup of lead oxide.
Patent GB-190020-A (GB)
Title: Improvements in combined baths and water-heaters
IPC: F24H9/06
Filed: 1921-12-24
Abstract: 190,020. Ewart, S. Dec. 24, 1921. B a t h s ; supports for geysers. - An annular gutter c for the reception of the lower end of a geyser is supported by the rim of the bath at one end. It may be integral with the rim, or formed with feet d integral with. or attached by screws to the rim.
Patent GB-619164-A (GB)
Title: Case for spoon hooks and like articles
IPC: A01K97/06
Filed: 1946-11-22
Abstract: 619,164. Cases for fishing tackle. OFFICE TECHNIQUE INTERNATIONAL O. T. I. Nov. 22, 1946, No. 34768. Convention date, March 7, 1945. [Class 48] [Also in Group XVII] A case for spoon fishing baits or the like articles comprises a thin rubber strip clamped between a pair of rigid strips formed at equal distances with apertures several square millimeters in area, the rubber strip being formed at the centre of each aperture with a hole about one millimeter in diameter adapted to receive and retain the shank of a bait. As shown, the case is provided with a pair of hinged lids 2 and 3 and contains a longitudinal partition 8 formed with a central sloping portion. Channel shaped members 10 apertured at 15 and enclosing rubber strips 9 perforated at 16 are secured to opposite faces of the partition at the respective edges of the sloping portion.
Patent GB-191599-A (GB)
Title: Improved sluice or gate valve
IPC: F16K31/56
Filed: 1921-12-28
Abstract: 191,599. Gardner, R., and Gardner, E. Dec. 28, 1921. Actuating-mechanism. - In a sluice valve the spindle is divided and a toggle trip gear is interposed so that the valve may be closed rapidly. The upper part A of the spindle is free to rotate in a fixed bridge C, and engages a crosshead E which is guided by the pillars D. The lower part J of the spindle carries a cross head L which is pressed downwards by springs M. The trip gear comprises two pairs of members G, H connected to the rods A, J respectively. A rod R is carried by the pivot F, so that when moved upward, the member G is carried past its upper dead centre and the trip gear is released. the pivot F carries also an arm Q with a stoppin P to retain the trip gear in its inoperative position. The lever R may be operated by hand, foot, or from a distance by a rod, Bowden wire, vacuum pipe, or electrical means. The valve may be rapidly opened after closing, by the temporary application of a lengthening lever to the rod R.
Patent GB-498766-A (GB)
Title: Aluminium base bearing metal alloy
IPC: C22C21/00
Filed: 1937-12-16
Abstract: An aluminium alloy for bearings contains 1-10 per cent of lead and 1,1-10 per cent of antimony, with or without 1-10 per cent of zinc. Lead and antimony may be partly replaced by 0,1-5 per cent of one or more of the metals tin, cadmium, bismuth, thallium, and arsenic, and the antimony may be partly replaced by 0,6-5 per cent of calcium, subject to a minimum of 0,5 per cent of antimony.  If the alloy contains 3,5 per cent or more of antimony, there may also be present 1-10 per cent of one or more of the elements copper, nickel, cobalt, iron, manganese, chromium, and silicon, and 1,6-10 per cent of magnesium.
Patent GB-1161846-A (GB)
Title: Improvements in or relating to Pressure Vessel and Method to Produce the Same.
Inventor: PONEMON WARREN E
IPC: F17C1/16
Filed: 1967-07-28
Abstract: 1,161,846. Pressure vessel. KOPPERS CO., Inc. 28 July, 1967, No. 34939/67. Heading B1X.  A pressure vessel comprises corrugated metallic inner wall 13, compressible resilient filler substance 31 filling the troughs on the outer surface of the corrugations and outer wall 15 comprising filaments coated with a resin binder substance and wound around the inner wall adjacent to the crests of the corrugations and to the filler substance. The inner wall may be of aluminium, aluminium alloy, copper, copper alloy, steel. The filler substance may be an. epoxy resin composition or synthetic rubber. The filaments are preferably glass fibres; metal is mentioned. They may be treated with a binder resin which is an epoxide, polyester e.g. alkyd, acrylic, or phenolformaldehyde, furbural-formaldehyde or resorcinol-formaldehyde resin.
Patent GB-1360825-A (GB)
Title: Mineral mining installations
IPC: E21F13/06
Filed: 1971-07-26
Abstract: 1360825 Mineral-mining installations GEWERKSCHAFT EISENHUTTE WESTFALIA 26 July 1971 [14 Nov 1970] 34973/71 Heading E1F In a mineral-mining installation the drive means 15 of the plough of the installation is, mounted on a frame 16 detachably connected to the outermost end of the framework 11 of an end drive station of a face conveyer 10 along the face side of which the plough is guided. The frame is of L-shaped configuration with an upwardly extending, preferably braced, end portion carrying coupling pieces 18 for connection to the outer end of the drive station by bolts 19 extending transversely of the conveyer. The plough drive means-supporting, horizontal portion of the frame rests on and is movable along a beam 21 extending substantially perpendicularly to the conveyer.
Patent GB-1339198-A (GB)
Title: System for cleaning and disinfecting waste water
IPC: B01D37/00
Filed: 1971-07-26
Abstract: 1339198 Purifying and disinfecting water K H HILDEBRAND [trading as KARL HEINZ HILDEBRAND CO] 26 July 1971 [12 Aug 1970] 34993/71 Heading C1C In an apparatus for purifying and disinfecting waste water, the waste water from inlet 2 is recycled through container 1 and disintegrator 5 by pump 4, passed through line 14 to mixer 15 where it is mixed with a chemical (e.g. lime) from dosage unit 18a, passed to filter 25 and then passed through line 30 where it is mixed with chlorine from unit 36, to mixer 31, sludge being removed through drain 24. The sludge is aerated and, if desired, mixed with chlorine in container 39, dewatered in thickener 47 and filled into bags 49. The sludge may be burned. Solids may be removed through drain 6. Outlet 9 in the reservoir 8 may be automatically controlled. Waste water may be treated with iron chloride and cellulose derivative from dosage units 18b and 18c respectively before and after treatment in the mixer 15. The filter may comprise gravel, coal, activated charcoal or dolomite. The filter may be back-washed. Water may be recycled from thickener 47 to reservoir 8. The waste water may enter the mixer and filter housing tangentially.
Patent GB-938741-A (GB)
Title: Improvements in, or relating to, cover plates or discs for vehicle wheels
IPC: B60B7/10
Filed: 1958-11-01
Abstract: 938,741. Wheel cover discs. J. H. HIPWELL, and K. J. HIPWELL. Nov. 2, 1959 [Nov. 1, 1958], No. 35113/58. Class 144 (1). A wheel cover disc 1 which extends so that its outer periphery 12 overlies, but is spaced from the tyre-retaining flange of the wheel rim, and is formed with an annular lip or projection 6 on its inboard face to provide for snap engagement with the usual hub-cap securing studs 3 on the wheel, is provided with a wear-resistant steel strip liner 11 covering at least the lip 6. As shown, the lip 6 connects with the disc centre 7 through a radially outwardly sloping wall 8, and an annular channel 10, and the liner strip 11 is of complementary cross-section to fit snugly within the channel 10 and against the wall 8. The liner may be adhered in position, or may be of split construction to permit expansion into position by a nut and bolt expander connection between its two ends. Alternatively the liner may be slotted around its radially inner edge to permit it to be sprung into position. The disc 1 may be formed with brake-cooling louvre openings radially outwardly of the lip 6.
Patent GB-1441920-A (GB)
Title: Lintels
IPC: E04C3/02
Filed: 1972-07-27
Abstract: 1441920 Lintels BOURNCRETE PRODUCTS Ltd 26 July 1973 [27 July 1972 5 Sept 1972] 35265/72 and 41106/72 Heading E1W A prestressed or reinforced concrete lintel 9 has a rigid extension flange formed by an element of angled cross section. The element has no part embedded in the lintel but is connected thereto either by having a portion in contact with a side wall of the groove 10 and an adjacent portion 13 secured to the lintel and/or by being adhered to the concrete lintel. The angled element may be of galvanised steel, glass fibre, reinforced cement, plastics or plastics coated steel. It may be secured to the lintel by epoxy resin or by bolting into sockets embedded in the concrete. When formed of G.R.C. the angled flange forming element may be cast directly onto the lintel which may have been previously coated with epoxy resin.