baber/WOPTO huggingface dataset:
Patent GB-1200208-A (GB)
Title: A filter
IPC: B01D33/073
Filed: 1967-11-14
Abstract: 1,200,208. Filter for sewage. KOEHLERDAYTON Inc. 14 Nov., 1967 [14 Nov., 1966], No. 51847/67. Heading B1D. [Also in Division El and E2] The w.c. pan (17) in a bus or aircraft discharges into a closed tank (11) from which the liquid content is drawn through a filter 56 by an internal pump 54 and recycled as flushing liquid to a manifold (38) in the pan (Fig. 1, not shown). The filter comprises a hollow plastics clup-like body with internal or external axial ribs 75 and circumferential, parallel sided slots machined through its vertical wall except for the ribs, and is cleaned by plastics combs 78 which move relatively thereto. In Figs. ,2, 3, 6, the filter has internal ribs and is rotated by a pinion. 72 engaging teeth 70 thereon, and combs 78 are fixed outside the filter. In Figs. 4, 5, 7 (not shown), the filter is fixed and has external ribs, and pinion 72 rotates the combs (115) on their annular support inside the filter. The combs may be moulded and machined like the filter, or may be built up of individual teeth and spacers. Spout (35) (Fig. 1) is hinged at (32) and may 'be pushed aside. An outlet valve (22) is fitted in tank (11).
Patent GB-1467749-A (GB)
Title: Miniature reciprocating pump for hydrostatic suspension  application
IPC: F04B17/04
Filed: 1975-12-18
Abstract: 1467749 Reciprocating pumps BENDIX CORP 18 Dec 1975 [19 Dec 1974] 51927/75 Heading F1A A small-scale pump, e.g. for pressurizing the suspension system of a liquid bearing gyro, comprises a bellows 18 connected to an armature 16 and defining a pumping chamber 40 having an inlet disc valve 26 and an outlet port 41, an electromagnet 10 with windings 8 being energized by rectangular waveform electrical pulses to reduce gap 17 and effect a suction stroke, the discharge stroke being effected by the resilience of the bellows. The electrical pulses are such that armature 16 does not contact either electromagnet 10 or return stops 43, 45. Space 15 and gap 17 are liquid-filled and vented via port 20.
Patent GB-1125172-A (GB)
Title: Dual hydraulic clutch
IPC: F16D25/10
Filed: 1965-12-08
Abstract: 1,125,172. Friction clutches. BORG-WARNER CORP. 8 Dec., 1965 [30 Dec., 1964], No. 52134/65. Heading F2C. A dual clutch having a common hydraulic actuator for engaging the clutches has means to cushion engagement and to delay disengagement. A hydraulic cylinder 11 is interposed between clutch packs A, B and is axially slidable on a reaction plate 42 fast axially on an input shaft 21 common to the clutch packs. Auxiliary pistons 52 are slidably mounted on the input shaft, and together with the reaction plate provide main, 14, 15, and auxiliary, 16, 17, chambers in the cylinder 11. The chambers are normally maintained full of low pressure liquid, and to engage one of the clutch packs high pressure liquid is supplied through a passage 57 or 62 to the auxiliary chamber 16 or 17 and shifts one of the pistons 52 towards the plate 42. The piston 52 shifts a Valve disc 47, against the bias of spring fingers 49, to close apertures in the plate 42 one-way thus preventing flow from the apply chamber 14 or 15 to the release chamber 15 or 14. The cylinder 11 moves into initial engagement with a clutch pack, and high-pressure fluid passes through restricted apertures 56 in the auxiliary piston 52 to the main chamber 14 or 15 and builds up therein to give full engagement. The clutch packs react against reaction rings 32 which cooperate with Belleville springs 34 to cushion engagement. Release of pressure when disengaging a clutch is delayed by the restricted apertures 56 which control the rate at which fluid bleeds from the main chambers.
Patent GB-1520900-A (GB)
Title: Time base corrector
IPC: H04N5/04
Filed: 1975-12-22
Abstract: 1520900 Time base corrector SONY CORP 22 Dec 1975 [25 Dec 1974 2 May 1975] 52450/75 Heading H4F Time base errors introduced during recording and reproducing television video signals are removed by writing the signal in digital or analog sample from in a memory unit at a clocking rate which varies in proportion to the time base errors, and then reading out these stored signals at a standard clocking rate. The memory unit comprises a plurality of registers, e.g. three registers each having a capacitor for one line interval of the video signals, having repeating cyclic orders of writing and reading, the video signals read out from each register being recycled or rewritten in the same register. The writing and reading operations are controlled so that writing and reading of any single register is not effected simultaneously. During the occurrence of excessive time base errors the writing or reading period of a register is extended, e.g. from one line interval to two line intervals, so that a line interval signal at the output is either omitted or repeated. If a drop out is detected in the video signal the writing period of a register is extended so as to omit (i.e. deleted due to the recycling action of the register) the line interval containing the drop out from the stored video signals, and during read-out the line interval preceding the deleted line interval is read twice. The write clock pulses, e.g. at three times the subcarrier frequency, are derived from the horizontal sync pulses in the played-back video signals from the magnetic tape recording, and write interval pulses for the three registers are derived from these write clock pulses via a counter and a sequencing counter which latter counter has inhibiting inputs for drop out and excessive time base errors. Read-out from the registers is similarly controlled by a standard clock generator. Instead of being derived from the horizontal sync pulses the write clock pulses may be derived from the subcarrier bursts. To compensate for velocity errors in the played-back video signals the read clock pulses may be modulated during each standard line interval having the standard frequency only at the beginning and end of each standard line interval. The registers may each have the capacity to store two or more line intervals. The registers may comprise random access memories. Instead of storing digitized samples of the video signal in the memory, differentially pulse coded samples may be stored.
Patent GB-1358137-A (GB)
Title: Methods of manufacture and magnetic transducer made thereby
IPC: G11B5/31
Filed: 1972-11-14
Abstract: 1358137 Magnetic transducers INTERNATIONAL BUSINESS MACHINES CORP 14 Nov 1972 [20 Dec 1971] 52476/72 Heading G5R A magnetic transducer has a core 212 of magnetic metal foil upon which electrically conductive material 224 has been deposited to form a winding, the conductive material 224 not extending into the transducing gap defined by the foil. The winding 224 is insulated by deposited layers 222, 226, or by prior surface oxidation of the winding 224, and the foil 212 may be grooved, e.g. by photoetching, to accept the winding and insulation, Figs. 1-6 (not shown). The transducing gap width may be defined by one or both insulating layers, as layer 222, or by a separate deposited layer or a shim (134), Fig. 7 (not shown). The core may be formed either from a single, folded foil 212 as shown, having holes 236 for electrical connections to the winding, or from two separate foils, Figs. 1-6, 7 (not shown) secured together in the back-gap area, possibly with a deposited magnetic layer or foil shim, by glueing, welding, or merely by pressure. A multi-track head may be formed by mating slots (32), Fig. 1 (not shown) in the core, e.g by etching, between the separate U-shaped windings. A multi-turn winding may be formed by depositing a spiral pattern conductor. The foils are of magnetic alloy, the windings preferably of copper, and the insulation preferably of a metallic oxide or compound formed by deposition, slurry coating, or decomposition of an organic compound. Suitable deposition techniques are vacuum deposition, sputtering or plating, the deposited areas being defined by masks, or by subsequent photoetching.
Patent GB-1358139-A (GB)
Title: Decontamination processes for radioactive liquids
IPC: G21F9/12
Filed: 1972-11-14
Abstract: 1358139 Radioactive decontamination BELGONUCLEAIRE SA 14 Nov 1972 52512/72 Addition to 1312852 Heading G6R The method of extracting radioactive ions from a contaminated liquid claimed in the parent Specification 1,312,852, is modified in that the sorbent comprises a mixture of a barium salt and a ferrocyanide of a metal other than copper. Mixtures of BaCO 3  with ferrocyanides of Mn, Ni, Co, and Zn are referred to.
Patent GB-1115828-A (GB)
Title: Apparatus for the preparation of multi-layer film and sheet
Inventor: LEFEVRE LLOYD EDWARD
IPC: B29C48/08
Filed: 1966-11-24
Abstract: 1,115,828. Extrusion dies. DOW CHEMICAL CO. 24 Nov., 1966 [26 Nov., 1965], No. 52600/66. Headings B5A and B5B. A composite sheet or film of plastics material is made using a slot extrusion die 10 comprising a conduit 27 terminating in a fish-tail slot die 28, through which a first material passes, and a conduit 18 which surrounds conduit 27 and through which a second material passes to envelop the first material. The materials emerge from conduits 18 and 27 within a plenum 16 and are coerced by the configuration of the plenum to move laterally and fill extrusion slot orifice 21, the enveloped material itself extending substantially the entire width of the slot.
Patent GB-1526970-A (GB)
Title: Vehicle suspension systems
IPC: B60G7/00
Filed: 1975-12-30
Abstract: 1526970 Vehicle suspension MPPHILLIPPE 30 Dec 1975 53161/75 Heading B7D An independent suspension system for vehicle wheels 20 includes a fluid pressure servo unit 26 which in response to the lateral forces which cause body roll when cornering varies the suspension geometry to maintain the wheels 20 perpendicular to the running surface. As shown the wheels 20 are connected to the vehicle chassis 30 by upper and lower links 17, 18, the position of the pivots connecting the upper links 70 to the chassis being varied by the servo unit 26. Operation of the servo unit 26 is controlled by valves actuated by a pendulum 28 which may be immersed in a fluid or gas to provide viscous damping. An automatic locking device is included in the servo unit to prevent changes in geometry when the vehicle is not in use or there is insufficient fluid pressure to operate the servo unit. The length of the upper links may be variable instead of the positions of the pivots, and the invention is also applicable to struttype suspensions. The lateral forces may be detected from the steering mechanism or suspension members instead of by a pendulum.
Patent GB-1316190-A (GB)
Title: Gas bearings-supported rollers
IPC: F16C13/02
Filed: 1971-11-18
Abstract: 1316190 Gas bearings; rollers GENERAL MOTORS CORP 18 Nov 1971 [17 Dec 1970] 53651/71 Heading C1M [Also in Division F2] An impermeable carbon-graphite roll 32 is supported by a gas bearing which comprises a hub 12 on which is located a pair of spaced resilient O-rings 20 which are compressed between the hub and the inner surface of a permeable carbon-graphite sleeve 26 which  surrounds the hub, gas being supplied to the plenum chamber between the hub, O-rings and sleeve through a passage 22, 24 in the hub. The hub may carry thrust rings 34 which abut the end faces of the sleeve to locate the sleeve axially. The thrust rings may be secured by snap rings 28 and gas may escape from the bearing past either the inner or outer circumferential surface of the thrust rings. Preferably, two pairs of resilient O-rings are provided with a gas supply passage opening into the plenum chamber defined by each pair. The roll may be provided with a ceramic coating, e.g. by flame spraying with alumina-titania particles.
Patent GB-1419802-A (GB)
Title: Process for the manufacture of metal complexes of optionally substituted salicylic acids
IPC: C08L27/00
Filed: 1973-11-21
Abstract: 1419802 Metal complexes of optionally substituted salicylic acids CIBA-GEIGY AG 21 Nov 1973 [22 Nov 1972] 53914/73 Heading C2C [Also in Division C5] Complexes of tri- or tetravalent metals with acids of Formula I in which R 1  and R 2  are independently H, Br, Cl, alkyl, cycloalkyl or aralkyl are obtained by successive reaction, in a solvent, of (a) an acid of Formula I with (b) a salt of formula M m X n  (II) wherein M is a tri- or tetravalent metal cation, X is an anion which forms with M a salt which is soluble in the solvent, m and n correspond respectively to the valencies of X and M, and (c) an alcoholate of formula M<SP>1</SP>OR wherein M<SP>1</SP> is an alkali metal cation and R is a C 1-4  alkyl, methoxyethyl or ethoxyethyl group, reactants (a), (b) and (c) being employed in a molar ratio of n : 1 : n to produce a complex free of OH ligands or (n - 1) : 1 : n followed by reaction with at least 1 molar equivalent of water to produce a complex having an OH ligand. The complexes have application as antistatic agents.
Patent GB-1162581-A (GB)
Title: Improvements in or relating to Electrical or Electronic Components
Inventor: MORTIMER ALAN FRANK
IPC: H01C10/32
Filed: 1966-12-02
Abstract: 1,162,581. Potentiometers; inductive potentiometers. PAINTON & CO. Ltd. 21 Feb., 1967 [2 Dec., 1966], No. 54152/66. Headings HIS and H1T. A resistive or inductive potentiometer has a rotatable wiper 10 continuously engaging a take-off contact 31 and formed by a resiliently flexible metal strip (8) (Fig. 1, not shown), bearing on an arcuate impedance track 21 and spot welded to the head 4 of a metal stud (2) having a cylindrical shank 3 providing a bearing for the wiper. The conductive plate 31 makes electrical contact with terminal plate 33 via the coil spring 32. The wiper is in the form of a loop (8) (Fig. 2, not shown) spot-welded to the frustro-conical undersurface (6) of the stud of silvered brass. The impedance track is wirewound. The assembly may be mounted on an L-shaped angle bracket. In a modification, (Figs. 6-11, not shown) a Y-shaped resilient strip carrying a dimple (58) co-operates with recesses (63) in the carrier (61) to form a " slipping clutch " so that when the carrier is turned the wiper traverses the impedance track until it reaches the end thereof and abuts a stop (72). Continued turning of the carrier in the same direction causes the dimple to ride over the recesses to provide the " slipping clutch " action.
Patent GB-1375975-A (GB)
Title: Loose leaf holding device
IPC: B42F11/00
Filed: 1972-08-09
Abstract: 1375975 Filing paper E HEIMANN 9 Aug 1972 [24 Nov 1971] 54637/71 Heading B6E A loose leaf holding device has a loose-leaf engaging-part or parts, e.g. prongs 11, and a hingedly connected part 12 with adhesive for connecting it to a binder. In a modification, Fig. 3 (not shown), the device has holes for fastening to a ring binder before sticking into place. In a further modification, Fig. 5, the pronged portion 30 is stuck to a blank portion 32 having the hinged adhesive margin 12, hole 37 at one end and aperture 38 at the other enabling the prongs to be passed through the blank during assembly without bending.
Patent GB-1479350-A (GB)
Title: Recirculating-ball mechanism
IPC: F16C29/00
Filed: 1974-12-18
Abstract: 1479350 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 18 Dec 1974 [19 Dec 1973] 54718/74 Heading F2A A recirculating-ball mechanism comprises an annular cage 1 having a plurality of endless paths containing recirculating balls 2, the balls in the loaded zone of each path being closely spaced from the balls in the loaded zone of an adjacent path, and the balls in the adjacent loaded zones contacting raceway portions of a common support member 4 having an axially extending middle portion 9a, 9b, 9d, 9e which extends radially outwardly beyond the raceway portions. The member 4, which is of steel, may be a solid moulding with an axial rib 9a, 9b, thereby supporting the raceways resiliently. The outer surface of the member 4 may be curved 9c (Fig. 1, not shown) to permit pivoting movement. Alternatively, the member 4 may be of sheet metal 9d, 9e with a U-shaped section which pivots on the housing 3 or on a cage web 10.
Patent GB-1154387-A (GB)
Title: Digital Computing Systems
IPC: G06F12/14
Filed: 1966-12-08
Abstract: 1,154,387. Memory protection in computers. INTERNATIONAL BUSINESS MACHINES CORP. 8 Dec., 1966 [7 Jan., 1966], No. 54900/66. Heading G4A. A digital computing system inhibits access by an unprivileged instruction to conditionally protected storage locations. The multi-block main memory of a multiprogramme computer is protected by means of an associative control memory. Each word in the control memory has a programme identifier field, a block address field (specifying a mainmemory block) and four status bits. The status bits are set to 1 if the programme-block, with which the control word is associated (i.e. the portion of the associated programme in the associated block or of the associated block in the associated programme) is (a) write protected, (b) write privileged, (c) transfer protected, (d) transfer privileged, for the four status bits respectively. At each memory access by a given programme, the control word for the requesting instruction and that for the requested address are obtained from the control memory in turn by associative matching with the programme identifier and the respective block addresses. If the instruction is of the " active " type, i.e. the type which alters the contents of the requested location, an interrupt (trap) is caused if the requested location is write protected and the instruction (or rather the address it came from) is not write privileged. Interrupt is also caused if a branch (transfer of control) is attempted to a transfer protected location from a location which is not transfer privileged. In all other cases, interrupt is not caused, so, e.g. a write privileged instruction may access and alter a write protected location. Applications programmes could be write protected but have the other status bits set to 0, and control programmes could have all status bits set to 1, as a simple example. If several programmes have the same protection characteristics, a common programme identifier could be used for all of them and just one control word be provided for each relevant block.
Patent GB-1142949-A (GB)
Title: Improvements in roller constructions for chassis dynamometers
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: F16C13/00
Filed: 1966-12-12
Abstract: 1,142,949. Rollers. LAYCOCK ENG. Ltd. 30 Nov., 1967 [12 Dec., 1966], No. 55503/66. Heading F2U. A roller for a chassis dynamometer comprises a cylindrical shell 11 with wall discs 12 secured to a mounting shaft 15, the discs being formed with ventilation openings 14 and at least one of the discs carrying a fan 18 whereby, during rotation, an axial flow of cooling air is induced through the roller.
Patent GB-556138-A (GB)
Abstract: 556,138. Foundry-moulding machine. DARWINS, Ltd., WALKER, J., and CONNERTON, D. May 30, 1942, No. 7350. [Classes 83 (i) and 83 (ii)] In a machine for making moulds for casting milling cutters, specialized magnets &c. from a pattern 13 having one or more external helical slots or other formations 14 of uniform pitch, this is rotatably secured to the pattern plate 12 and each formation 14 is engaged by a tooth &c. of a stripping plate 21. The pattern 13 may have a spigot 15 passing through the plate 12 and a thrust bearmg 18 fitted. In a modification, a headed spindle 29, Fig. 5, is passed through a corresponding bore in the pattern and secured into the plate 12, the head 30 being received in a counter-bore 28 which is closed by a cover plate 42. A number of separate patterns may be mounted on one plate 12. In the case of a milling cutter, the helical formation 34, Fig. 6, may be continued at 36 radially over the end of the pattern.
Patent GB-1117289-A (GB)
Title: Improvements in and relating to apparatus for manufacturing cylindrical ceramic objects
IPC: B28B11/16
Filed: 1966-12-13
Abstract: 1,117,289. Endless conveyers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Dec., 1966 [16 Dec., 1965], No. 55811/66. Heading B8A. [Also in Division B5] Cylindrical ceramic objects, e.g. rods or tubes, are produced by using apparatus comprising an extruder (36, Fig. 1), an endless belt (12) on to which the extrudate is fed, cutting mechanism [13) to sever desired lengths of extrudate, pneumatically operable delivery mechanism (25) to deliver severed lengths by blowing air across the belt on to a sloping pathway (2) extending transverse to the belt, along which moves a conveying mechanism (5) having pockets (4) therein and along which the objects are dried. The apparatus is preferably provided with a single driving mechanism, e.g. motor (9), which drives the conveying mechanism (5) and through a reducing transmission (9), the endless belt (12) and also controls the cutting mechanism (13) and the pneumatic delivery mechanism (25), which is preferably an elongated, perforated box.
Patent GB-1360249-A (GB)
Title: Apparatus for measuring neutron flux
IPC: G21C17/10
Filed: 1971-12-03
Abstract: 1360249 Monitoring reactors HITACHI Ltd 3 Dec 1971 [4 Dec 1970] 56371/71 Heading G6C In a nuclear reactor, apparatus for measuring the neutron flux distribution in the reactor core 1 comprises a closed circuit having a tube 7 of uniform internal diameter in the core, means, such as a reservoir 11, for supplying to and receiving from the circuit a fluid containing a substance which is rendered radio-active by neutron irradiation, a circulating pump 12, a fluid flow velocity control means and detectors 8, 13 for detecting radio-activity in the fluid bath after and before its passage through the core. Data inputs to a central control unit 14 enable the latter to establish and solve simultaneous equations to determine the neutron flux distribution function. The apparatus can use a single substance, and merely vary its circulation rate, or can use different substances circulated at a constant rate, or a combination of both approaches. Substances which give rise to isotopes of short half-lives are preferred, e.g. silver nitrate (# <SP>110</SP>Ag), ammonium chloride (#<SP>38m</SP>Cl), indium sulphate (#<SP>116m</SP>Iu), scaudium sulphate (#<SP>46m</SP>Sc) or mixtures thereof. The tube 7 may be disposed axially or radially in the core which may be that of a thermal or fast breeder rector.
Patent GB-1318016-A (GB)
Title: Method of and apparatus for heat-treating mineral materials
IPC: F27B7/20
Filed: 1971-12-07
Abstract: 1318016 Calcining apparatus ALLISCHALMERS CORP 7 Dec 1971 [10 Dec 1970] 56812/71 Heading F4B In the heat treatment of granular materials such as iron ore, limestone and cement raw materials in apparatus generally similar to that disclosed in Specification 1,136,864 (see Divisions F3-F4) a by-pass conduit 27 and a second conduit 40 connect the preheating chamber 5 and the drying chamber 4, said conduit 27 extending from a mixing chamber 22 having a valve controlled air inlet 25 and incorporating a cyclone separator 36, said conduit 40 extending from plenum chambers 41 below the gas pervious travelling grate 1, and a third conduit 50 connects the drying chamber 4 to a fine dust collector 54. Conduit 27 also incorporates dampers 31 and 32, a valve-controlled connection 57 to conduit 50 and a valve-controlled air inlet 38 upstream of a fan 35. Conduit 40 includes a damper 43, a cyclone separator 45 and a valve-controlled air inlet 47 upstream of a fan 44. Conduit 50 includes a fan 53 and the dust collector 54 may be an electrostatic precipitator or gas permeable bags which extract the fine dust passed by separators 36 and 44. The rotary furnace 8 and cooler 11 are identical with those disclosed in the aforementioned Specification 1,136,864. Additional burners 49 may be disposed in the preheating chamber 5.