baber/WOPTO huggingface dataset:
Patent GB-1151396-A (GB)
Title: Automatically Acting Load Sensor for a Vehicle Axle
IPC: B62D61/12
Filed: 1967-09-01
Abstract: 1,151,396. Controlling auxiliary road vehicle axles. TRANASVERKEN A.B. 1 Sept., 1967 [6 Sept., 1966], No. 40014/67. Heading B7D. In automatic load sensing and control means for an elevatable auxiliary axle 12 which is associated with a main axle in a tandem or multi-axle road vehicle bogie and is positioned by a servo-cylinder 11, a pressure-actuated switch 34 sensitive to the pressure in the servocylinder is arranged to prevent elevation and retention in the elevated position of the axle 12 when the load on the main axle exceeds a predetermined maximum. A lever 14 carrying the axle 12 is connected to the servo piston 13 and to spring means 15 carrying the main axle. Lines 20, 21 connected to the cylinder 11 are reversibly connectable by an electromagnetic valve 18 to a return line 25 and a pump 16 fed from a tank 26 and driven by an electric motor 17. The valve windings 28, 29 and the pump motor 17 are energized through a control switch 35 having a moving contact 38 fed through the pressure switch 34 and a position switch 33 closed when the axle 12 occupies other than the extreme lowered position. A shock relief and compensating valve assembly 19 in the lines 20, 21 includes a valve 32 for supplying make-up fluid to the line 20 and a pair of valves 30, 31 for permitting fluid transfer in either direction between the lines 20, 21 in the event of shock loads or overloading. When the load on the vehicle is reduced with the axle 12 lowered and it is considered that the axle 12 may no longer be required, the switch 35 is moved to a "raise" position whereupon the valve winding 28 and pump motor 17 are energized to elevate the axle 12 unless the pressure below the servo piston 13 is sufficient to open the switch 34 thereby ensuring that the axle 12 remains in the lowered position. Should the vehicle load be increased when the axle 12 is in the elevated position and the control switch 35 is open, increased pressure beneath the servo piston 13 opens the valve 31 so that fluid transfer between the lines 20, 21 permits the axle 12 to return to the lowered position. Lowering of the axle 12 when the load is insufficient to do so automatically is effected by moving the control switch 35 to a "lower" position. Extra deflection of control switch 35 in the direction of the "raise" or "lower" position energizes the valve winding 28 or 29 and the pump motor 17 through by-pass connections 43, 44 whereby the axle 12 is elevated or lowered regardless of the state of the switches 33, 34.
Patent GB-1025980-A (GB)
Title: Electronic phase shifting circuit
IPC: H03C3/00
Filed: 1963-10-11
Abstract: 1,025,980. Transistor frequency changing circuits. STANDARD TELEPHONES & CABLES Ltd. Oct. 11, 1963 [Oct. 11, 1962], No. 40197/63. Heading H3T. [Also in Division H2] In an arrangement in which a high frequency F is shifted a small amount f to give frequencies (F+f) or (F-f) a phase-shifting circuit 101 is used to derive from the frequency F an output of this frequency and two further outputs respectively shifted 120 and 240 degrees in phase. The three outputs are limited in amplitude by limiters 107-109 and each forms one input of modulators 103, 104, 105 respectively. The second inputs of the modulators are derived from a phase-shifting circuit 102A which produces from the frequency f an output of the same frequency and two further outputs respectively shifted 120 and 240 degrees in phase. The modulators 103-105 may be of the transistor choppertype and their outputs are fed to fillers 110- 112 which suppress components of frequency f and harmonics of frequency of the order 2F and higher. The outputs of the filters 110- 112 are combined in an adding network 106, it being shown in the Specification that the output on line 14 comprises only the desired sum or difference frequency, i.e. (F+f) or (F-f) according to the manner in which the phase-shifted signals are combined in the modulators 103-105.
Patent GB-1032547-A (GB)
Title: Slide assembly
Inventor: CASHMAN ROBERT WILLIAM
IPC: B23Q1/26
Filed: 1964-10-02
Abstract: 1,032,547. Slides. SAGINAW MACHINE & TOOL CO. Oct. 2, 1964, No. 40248/64. Headings B3B and B3D. [Also in Division F2] A slide assembly for a lathe, drilling, milling or grinding machine comprises a slide member 36 supported by guides 2, 3, one of which is movable towards the other by adjustable spring means 27. The effect of the springs, as limited by screws, is to urge the block 24 laterally to take up play while allowing the slide to move laterally towards the guide 3 if undue forces occur. Rollers, 25, 50, 47, 48 are interposed between the slide and guides. The rollers are mounted in cages 51, 52 which may be restrained by springs or may be moved with the slide through rack-and-pinion means 57 and 58, Fig. 8 (not shown). Seals 60, 61, Fig. 5 (not shown), may be provided and the guide 2 made in one piece instead of two as in Fig. 2 (not shown).
Patent GB-1279965-A (GB)
Title: Nuclear reactor columns
Inventor: WILLIAMS MICHAEL ROGER LLOYD
IPC: G21C1/12
Filed: 1968-08-23
Abstract: 1279965 Moderator structures BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 18 Aug 1969 [23 Aug 1968] 40352/68 Heading G6C In a nuclear reactor graphite moderator structure, the blocks are arranged in vertical columns, each block being formed of an inner, separate cylindrical part surrounded by an outer hexagonal part. The inner parts 12, are mounted within the outer sections, 13, and are secured thereto by the wire circlips, 16. The inner sections 12 are staggered vertically in relation to the sections 13 by half a block height. The channels, 11, contain fuel and coolant gas. The radial clearance between 12 and 13 allows for differential growth due to irradiation. Control means, 14, are located at three alternate corners of the core central column.
Patent GB-1241578-A (GB)
Title: Cinematographic reproduction apparatus
IPC: G11B15/67
Filed: 1968-08-23
Abstract: 1,241,578. Cine projection apparatus. AGFA-GEVAERT A.G. Aug. 23, 1968 [Aug. 31, 1967], No. 40466/68. Heading G2E. In a cine projector, film 5 is automatically extracted from cassette 2 by means of an endless flexible band 19 with transverse grooves 19a which is brought into frictional driving engagement with the surface of the film roll 6, the film end being guided by a spring-loaded stripper 9 to the outlet 2a, 2b of the cassette. The grooves 19a engage and carry the film end to the nip of roller 18 with roll 6. Band 19 passes over rollers 17, 18 on spindles 15, 16 extending from a member 14 mounted on pivoting arms 10, 11 for displacement towards and from roll 6 through cassette inlet 2c by means of bar 25. Coaxial pulley 20 on spindle 15 is belt-driven by film sprocket 4.
Patent GB-1155637-A (GB)
Title: Method of Operating a Hydrofining Process
Inventor: JAFFE JOSEPH
IPC: B01J38/18
Filed: 1967-09-05
Abstract: 1,155,637. Hydrofining. CHEVRON RESEARCH CO. 5 Sept., 1967 [6 Sept., 1966], No. 40492/67. Heading C5E. A method of operating a hydrofining process comprises continuously reducing to below 50 ppm. the organic nitrogen content of a hydrocarbon feed containing from 50-20,000 ppm. of nitrogen in the form of organic nitrogen compounds by continuously contacting the feed and added hydrogen under conventional hydrofining conditions with a hydrofining catalyst comprising Mo sulphide or W sulphide and containing 1-20% combined sulphur, discontinuing the contacting when the denitrification activity of the catalyst falls to a level indicating that regeneration of the catalyst is desirable, regenerating the catalyst in the presence of an oxygen-containing gas under conventional regeneration conditions to produce a metal sulphate-containing regenerated catalyst, reducing the regenerated catalyst in a gas stream containing from 0À1-10 mol per cent of hydrogen, at a temperature of 550-750 F., pressure of 15-10,000 p.s.i.g. until reduction reactions are substantially completed, resulphiding the resulting regenerated and reduced catalyst, and resuming the contacting of the feed and added hydrogen with the sulphided catalyst under the conventional hydrofining conditions, e.g. temperature of 500-850 F., pressure of 200-4000 p.s.i.g., space velocity of 0À2-10 L.H.S.V. and a hydrogen throughput of 1000-10,000 S.C.F. per barrel of hydrocarbon feed.
Patent GB-950478-A (GB)
Title: Improvements in alkaline electric batteries
IPC: H01M4/34
Filed: 1960-11-25
Abstract: 950,478. Batteries. ELECTRIC STORAGE BATTERY CO. Nov. 25, 1960 [Dec. 21, 1959], No. 40543/60. Drawings to Specification. Heading H1B. The efficiency of silver electrodes in an alkaline battery is improved by adding from 0.1-5% by weight of the silver, of lead, lead oxide, lead hydroxide or sodium plumbite. This causes the formation of silver plumbate on the divalent silver oxide particles and reduces gassing and electrical resistance.
Patent GB-1217258-A (GB)
Title: Improvements in or relating to the electro-slag refining of metals
Inventor: OLDS GEOFFREY CHARLES EDWARD
IPC: C22B9/18
Filed: 1968-08-26
Abstract: 1,217,258. Casting processes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 26 Aug., 1969 [26 Aug., 1968], No. 40598/68. Heading B3F. In an electroslag refining process a consumable electrode of iron, steel or nickel alloy is used which incorporates a particulate insoluble additive which is retained by the molten metal of the electrode whilst passing through the slag and which is incorporated in the ingot which is formed. The additive can be a metal oxide or carbide but is preferably alumina or thoria comprising 0À1 to 2À0% wt. of the metal present in the electrode. The process can be utilized with the consumable electrode depending into a water-cooled mould and the mould base forming a counter-electrode. Alternatively, a second consumable electrode, with or without the particulate additive, can be used as a counter electrode. A 3-phase current supply may be used with three electrodes.
Patent GB-1487613-A (GB)
Title: Reclassifier for oil fog lubrication systems
IPC: F15D1/08
Filed: 1974-09-18
Abstract: 1487613 Oil coalescer C A NORGREN CO 18 Sept 1974 40683/74 Heading BIT  An oil mist coalescer for lubricating systems comprises a body member 20 and 18 having internal wall surfaces conforming to a generatrix rotated about a reference axis and inlet 30 and outlet 32 orifices, and a baffle member 2 disposed therein having a body conforming to a generatrix rotated about the reference axis of the body member. Oil mist particles through inlet 30 coalesce on baffle member 2 and are swept as larger droplets through outlet 32 by gas flow. The baffle member may be placed closer to the outlet orifice than to the inlet orifice. The internal walls of body member may be hemispherical at the ends and elongated therebetween; the inlet orifice may be of smaller diameter than that of the outlet. A tapered portion adjacent the inlet orifice produces turbulent flow.
Patent GB-1394183-A (GB)
Title: Semiconductor devices
IPC: H01L21/00
Filed: 1972-09-05
Abstract: 1394183 Semi-conductor switching elements INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1972 [30 Sept 1971] 41081/72 Heading H1K A device capable of assuming two stable impedance states in either of which it can remain on removal of the supply voltage comprises a metal electrode forming a Schottky barrier with a body of semi-conductor material containing a sufficient density of deep energy traps for there to be two stable states of interaction between charge carriers and the traps. The theory of operation is discussed. Suitable semi-conductor materials are compensated gallium arsenide, and silicon doped with platinum nickel, gold, iron, manganese, mercury, chromium, silver, copper, zinc or cobalt. The device may be a diode consisting, e.g. of a rhodium Schottky contact on gallium arsenide. It remains in a (normal) high resistive state until a sufficient reverse bias is applied to it when it assumes a low resistive ohmic condition in which it stays until a forward current in excess of a threshold level is applied. An alternative device is made by depositing palladium on three strips spaced 1Á apart on a conductive channel at one face of a high resistivity silicon body. Then gold-antimony alloy is heated to 550 C. on the outer contacts, which are interconnected, to provide an ohmic contact, the centre strip forming the Schottky barrier. In a device of essentially the same construction the outer contacts are separately connected to constitute the source and drain of a field effect transistor the gate of which is formed by the centre strip. In modifications of this which can form part of a matrix the source and drain are formed by diffused regions, gate conductors being provided on one face of the wafer while the source and drain may be contacted at the back face through extensions of or exposure of the diffusions.
Patent GB-1127430-A (GB)
Title: A safety device for injection moulding machines
IPC: B29C45/84
Filed: 1966-09-14
Abstract: 1,127,430. Injection moulding machines. MASCHINENFABRIK UND GIESSEREI NETSTAL A.G. 14 Sept., 1966 [14 Sept., 1965], No. 41122/66. Heading B5A. In an injection moulding machine wherein a movable die 7 is moved towards a die 8 by pairs of toggles 3, the die 8 being mounted for limited movement under the action of the die 7, means (not shown) are provided for breaking a control circuit to arrest motion of the die 7 if switches 11, 14 of a safety circuit remain open simultaneously for a predetermined time. In the open position of the dies shown, switch 11 is closed and switch 14 open. A screw 12 is adjusted so that switch 11 is opened after the die 8 has been displaced a distance equal to or slightly less than the movement of die 8 which precedes closing of switch 14, i.e. when a tappet screw 15 actuates the switch 14 when die 7 has contacted die 8 and moved it a distance several times shorter than the total movement thereof. If there is no-obstruction, switch 14 is opened simultaneously with or slightly after opening of switch 11. If there is an obstruction, die 8 will advance and open switch 11 prematurely, thereby making the time interval between its opening and switch 14 closing longer than the predetermined time, which therefore causes the drive to the toggles to be interrupted.
Patent GB-934496-A (GB)
Title: Combination three-dimensional article and display package therefor, and method of packaging said article
IPC: B65D73/00
Filed: 1959-12-04
Abstract: 934,496. Packages. UNION BAGCAMP PAPER CORPORATION. Dec. 4, 1959 [Dec. 15, 1958], No. 41295/59. Class 94(1). [Also in Group XVIII] A package comprises an apertured card 31 having a sheet of plastics &c. 36 secured to one side and a pocket of the sheet protruding from the other to contain the article. The article may be larger in one dimension than a dimension of the aperture so that it may be retained against the card by the pocket. The pocket may be shrunk by heat on to the article. A display stand may be formed by the card having a flap 32 which is bent at right angles to the rest of the card to provide a base. The sheet 36 is attached to the vertical and horizontal portions of the card.
Patent GB-1010107-A (GB)
Title: Purification of phosphoric acid during manufacture
IPC: C01B25/22
Filed: 1963-10-21
Abstract: In the preparation of phosphoric acid from natural phosphates using sulphuric acid, a complex silicate or iron and alumina, and sodium sulphate is added to the natural phosphates. The additives are suitably added dry, in crushed form to the crushed phosphates prior to mixture with the sulphuric acid.  Typically 5% of complex silicate and 4.8% sodium sulphate are used based on the total magma of phosphates and sulphuric acid, e.g. for a natural phosphate containing 1.8% silica and 3.8% fluorine, the complex silicate containing 45% by weight of silica.  Suitable complex silicates are naturally occurring silicates containing iron and silica, e.g. halygorskyte clays, and clays issuing from the washing of iron ores and phosphates.
Patent GB-1479960-A (GB)
Title: Jogger mechanism
IPC: B65H31/24
Filed: 1974-09-25
Abstract: 1479960 Knocking-up apparatus RUEL E TAYLOR Inc 25 Sept 1974 [3 Oct 1973] 41692/74 Heading B8R Knocking-up devices 22 provided at the top of a stack to which sheets are being delivered each comprise an endless chain 46 trained around spaced sprockets 34 and 44. The chains are arranged so that one run of each thereof moves in the direction of delivery of sheets to the stack and so that these runs perform oscillatory motion transverse to their general direction of movement for knocking the pile. The sprockets may be mounted in bearing blocks urged apart by spring 45 to keep the chain tensioned. The chain may be provided with stack engaging rollers 51. A flexible belt 24 may surround the rollers so that this rather than the rollers engages the stack. The devices are laterally adjustable to accommodate stacks of different widths and are vertically adjustable on posts 19. The stack is collected on a vertically movable platform 14.
Patent GB-1237807-A (GB)
Title: Circuit arrangement for a telephone subscriber station
IPC: H04M1/74
Filed: 1969-08-21
Abstract: 1,237,807. Substation circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 21 Aug., 1969 [29 Aug., 1968], No. 41693/69. Heading H4K. Shunts across receiver and transmitter of a telephone substation circuit are varied in accordance with loop current passing through low-valued resistors associated with each shunt. Voltages developed across low-valued resistors R1, R2, govern the collector base impedances of transistors T1 and T2 in shunt with capacitors C1, C2, across receiver F and transmitter M. If resistors are employed in place of hybrid transformer U, as in Fig. 2 (not shown), the substation circuit may be produced as an integrated circuit.
Patent GB-1254027-A (GB)
Title: Continuous production of glycerine
IPC: C07C27/00
Filed: 1969-08-22
Abstract: 1,254,027. Glycerine. ASAHI GLASS CO. Ltd. 22 Aug., 1969 [26 Aug., 1968], No. 41961/69. Heading C2C. A method for continuously producing glycerine by the hydrolysis of epichlorohydrin comprises continuously introducing epichlorohydrin and an aqueous mixed alkaline solution containing sodium carbonate and sodium hydroxide into a perfect mixing reactor to effect hydrolysis of the epichlorohydrin and continuously withdrawing the reaction mixture from the reactor to obtain glycerine, the chemical equivalent ratio of in the aqueous mixed alkaline solution introduced into the reactor, the residence time inside the reactor and the feed ratio of epichlorohydrin to the aqueous mixed alkaline solution (Na 2 CO 3  +NaOH) being regulated so that the reaction mixture withdrawn from the reactor contains no sodium hydroxide and the chemical equivalent ratio of in the reaction mixture withdrawn from the reactor is maintained within the range of 0À01 to 0À98. Yields may be increased by heating the reaction mixture withdrawn from the reactor, optionally with evaporative concentration. The chemical equivalent ratio of Na 2 CO 3  to Na 2 CO 3  + NaOH in the feed may be 0À01 to 0À5 and that of Na 2 CO 3  + NaOH to epichlorohydrin may be 0À95 to 1À50. The residence time may be 10-300 minutes and the reaction temperature 50-100‹ C.
Patent GB-1276424-A (GB)
Title: Reversing fluid flow control valve
IPC: F16K11/065
Filed: 1970-09-02
Abstract: 1276424 Valves ALLIED CHEMICAL CORP 2 Sept 1970 [18 Nov 1969] 42056/70 Heading F2V A four-way valve for reversing fluid in two conduits 115, 116 comprises an inlet 106, outlet 110 and two pistons 117, 118 connected so that in a first position fluid from the inlet 106 passes to the conduit 116, and fluid from conduit 115 passes to the outlet 110; and in a second position fluid from inlet 106 passes to the conduit 115 whilst fluid from conduit 116 passes to the outlet 110. The two cylinder chambers 102, 103 may be aligned (Fig. 4, not shown) with both pistons mounted on a single piston-rod. The piston-rod is hollow (Fig. 5, not shown) to allow the passage of sealant gas, e.g. steam to a chamber (202) between the piston rings. The same route may be used for corrosion resistant lubricants.
Patent GB-1445220-A (GB)
Title: Microphone
IPC: H04R19/01
Filed: 1974-09-27
Abstract: 1445220 Electrostatic transducers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Sept 1974 [1 Oct 1973] 42167/74 Heading H4J An electrostatic microphone incorporates as part of its physical structure a weakly conductive (100 M#) synthetic component which acts as a large resistor for the input circuit of an, e.g. FET integrated circuit amplifier or as a series resistor in the polarizing potential supply circuit. In Fig. 1, a metal or conductive polypropylene foil diaphragm 1 is clamped between a metal ring 2 and a weakly conductive synthetic ring 3. A perforated metal hood 4 clamps this assembly to an insulating frame 6. A metal back electrode 7, a further ring of weakly conductive synthetic material 8 and a metal ring 9 complete the assembly. In one embodiment, the ring 3 is effectively in series with the polarizing supply for the microphone while back electrode 7 is connected via cable 10 and a capacitor to an FET amplifier having its own very high input resistor (Fig. 2, not shown). In another embodiment (Fig. 3, not shown) the ring 8 provides the amplifier input resistor, the just mentioned capacitor being dispensed with. Fig. 4 depicts an electret foil diaphragm 40 clamped between perforated metal hood 42 and a weakly conductive synthetic mount 41. A sintered ceramic back electrode 43 is provided. The ring serves as an input resistor for an FET amplifier (Fig. 5, not shown).
Patent GB-1532976-A (GB)
Title: Photoconductive imaging member
IPC: G03G5/087
Filed: 1975-10-15
Abstract: 1532976 Electro-photographic members XEROX CORP 15 Oct 1975 [29 Oct 1974 24 July 1975] 42229/75 Addition to 1296291 Heading G2C An electro-photographic member containing a photo-conductive layer of trigonal Se in the form of continuous chains of particles in a binder through the thickness of the layer, the chains constituting 1-25 per cent by volume of the layer, and the binder having been formed from resin particles which are at least 5 times the size of the Se particles. The layer is coated on a conductive support and may be in the form of a continuous belt. In the Example, triogonal Se particles of 0À003 microns are dispersed in polyester particles of 5 microns and coated on an Al support. The coating is then fused by heating to form a layer with the continuous chains.
Patent GB-956836-A (GB)
Title: Atomic absorption spectrochemical analysis
IPC: G01N21/31
Filed: 1962-11-08
Abstract: 956, 836. Photo-electric absorption analysis apparatus. KABUSHIKI KAISHA HITACHI SEISAKUSHO. Nov. 8, 1962 [Nov. 9, 1961], No. 42258/62. Heading G1A. Absorption analysis apparatus comprises a light source S1 emitting suitable spectral lines, which need not be narrow, a flame into which the' test sample is introducted, S2, a monochromator M of low dispersion and low resolving power followed by a interference spectrometer I of high dispersion and resolving power. The sample may be vaporized in the flame and the absorbance at the wave-length of a resonance line of the element of interest determined and compared with the absorbance of known concentrations of the element similarly introduced to determine the amount present in the sample. The apparatus makes it possible to measure accurately peak intensities at any required wavelength. The interference spectrometer may perform a wavelength scan and incorporate a photosensitive device D whose output after amplification is fed to a recorder R.
Patent GB-1511279-A (GB)
Title: Fire-retardant polyester compositions
IPC: C08K13/02
Filed: 1975-10-15
Abstract: 1511279 Fire-retardant polyester compositions TEIJIN Ltd 15 Oct 1975 [17 Oct 1974] 42320/75 Heading C3R A fire retardant thermoplastic composition comprises, by wt., 100 parts (A) aromatic polyester, 0À5-100 parts (B) MgCO3 or an alkaline earth carbonate, 0À5-50 parts (C) a fire retardant, 0-120 parts (D) glass fibres, and 0-10 parts (E) other conventional additives. (C) may be an organic halogen compound with or without Sb2O3 or a Bi compound, and/or red P or an organic or inorganic P compound; many suitable compounds (C) and (E) are listed. Use.-Moulded articles.