baber/WOPTO huggingface dataset:
Patent GB-1254237-A (GB)
Title: Pumping apparatus comprising a rotary pump driven by a wet rotor electric motor
IPC: F04D29/04
Filed: 1969-12-16
Abstract: 1,254,237. Pump motors. KLEIN, SCHANZLIN & BECKER A.G. 16 Dec., 1969 [17 Dec., 1968], No. 61274/69. Heading H2A. [Also in Division F1]  The rotor 9 of an electric motor driving a pump impeller 4 through a shaft 3 is enclosed in a rotor chamber formed by a cylindrical stator plate 8 and bulkheads 11, 12; thrust bearings at each end of the rotor chamber each comprise a bearing part 15 or 22 having a face directed towards a face of the respective bulkhead 11 or 12 on the side of the bulkhead remote from the rotor chamber; the arrangement is such that pressurized fluid supplied from the pump output via a duct 5 to the rotor chamber can escape through the opposed faces of the thrust bearings. The fluid passes from the end 6 of the rotor chamber through a restrictor gap 20 and then passes through the lower thrust bearing, a radial bearing 23 and a restrictor gap 24 into a chamber 25 behind the impeller 4. The fluid also passes from the end 6 of the rotor chamber to the other end 10 via the gap 7 between the rotor 9 and the stator plate 8, thereby exerting an upthrust R on the rotor. Thence, the fluid passes through a restrictor gap-13, the upper thrust bearing and a radial bearing 16 to the end of the shaft 3, where it exerts a downthrust W on the shaft. After flowing through a drilled screw 17, a bore 18 in the shaft 3 and a further drilled screw 19, the fluid returns to the eye of the pump. The net upthrust R-W counteracts the downthrust exerted by the impeller 4. In the event of an imbalance occurring between the impeller downthrust and the counteracting upthrust, the resultant axial displacement of the shaft 3 reduces the gap between the opposed faces of one of the two thrust bearings, thereby producing an axial thrust on the thrust bearing to remove the imbalance: Radial grooves may be  provided in the thrust bearing faces of the bulk-  heads 11, 12 to ensure a minimum flow which is sufficient for cooling and lubrication.
Patent GB-735552-A (GB)
Abstract: 735,552. Earth boring apparatus. SKYLUX, Ltd. Oct. 8, 1953, No. 27695/53. Class 85. In a thrust earth-boring machine, the thrust-exerting means includes two cross heads 19, that are always simultaneously moved in opposite directions so that one reaches its end-of-thrust position as the other reaches its start of thrust position ready to take over and continue the thrusting action. Two parallel shafts 7, each having a right and left-handed screw threaded portion, are so rotatably mounted in and between rigidly spaced-apart end plates 1 that the right-handed screw threaded portion of each shaft is laterally opposite to the left-handed screw threaded portion of the other shaft. Worm wheels on each shaft 7 are rotated by worms 11 on a shaft 12, which is rotated by oscillatable levers 17 through pawl and ratchet mechanism 15. The crossheads 19 extend laterally of the shafts 7 and each engages the right-handed threaded portion of one shaft and the left-handed threaded portion of the other shaft. Thrust plates are positioned alternately in one or other of the crossheads dependent upon the desired direction of movement of the thrust tubing, which abuts the plate. Specification 596,545 is referred to.
Patent GB-2029011-A (GB)
Title: The use of a synthetic bifunctional ligand for the immunometric determination of the concentration ratio of two solutes
IPC: G01N33/74
Filed: 1978-09-01
Abstract: The specification describes an immunochemical method for detecting the fertile period of the menstrual cycle, by determining the ratio, in urine of the two hormonal metabolites oestrone-3-glucuronide (E13G) and pregnanediol-3- glucuronide (PD3G). The method depends on determining how an immunocomplex dissociates in the presence of the two metabolites. The immunocomplex comprises a solid phase with antibodies to PD3G attached, and bifunctional ligand (E13G and PD3G both covalently bound to bovine serum albumin) bound to these antibodies, finally E13G antibodies are bound to the E13G moieties of the bifunctional ligand. The immunocomplex is incubated with urine. The metabolites in the urine compete for the antibodies so the immunocomplex partially dissociates. The solid phase is washed and the number of exposed E13G moieties remaining depends on the ratio of E13G to PD3G in the urine. These are determined with enzyme labelled E13G antibodies.
Patent GB-2029917-A (GB)
Title: Improvements in pipe swivels
IPC: F16L27/08
Filed: 1978-09-15
Abstract: The invention describes a pipe swivel intended to be used at low temperatures, for example pipes carrying liquefied gas in the North Sea. The pipe swivel comprises an inner annular member 14 secured to one pipe section 10 and an outer annular member 18 secured to the other pipe section 12. The annular members 14 and 18 are formed of separable parts and retain inner and outer races 30 and 32 made of a different material. In this way, the material used for the annular members 14 and 18 is suitable for welding whilst the material used for the races is one chosen to be suitable for such use at low temperature. <IMAGE>
Patent GB-2009341-A (GB)
Title: Temperature-variable pulley system
IPC: F16H9/12
Filed: 1978-11-13
Abstract: A temperature-variable pulley system (16) has a drive pulley (50) and driven pulley (18) each of which has a movable section (58, 28) enabling the bite (60, 30), and thus the diameter, of the pulley to be altered as is known. Temperature- responsive actuators (68) are arranged round the periphery of the drive pulley and abut against its movable section (58) to adjust it with varying temperature. The movable section (28) of the driven pulley (18) is spring loaded (44) to oppose the action of the actuators (68). The system (16) offers simplicity and an effective positioning of the actuators (68). <IMAGE>
Patent GB-2017229-A (GB)
Title: Guide Vanes for Gas Turbine Engines
IPC: F01D5/18
Filed: 1979-03-02
Abstract: A guide vane comprises a hollow body 10 externally of aerofoil form. The inner surface of the body is provided with confronting grooves 23, extending in a direction along the length of the aerofoil form, at a location intermediate the leading and trailing edges of the aerofoil form for receiving two inserts 21, 26. The first insert 21 comprises two perforated panels 22 situated inside a trailing region of the aerofoil form and defining therewith one or more air passages 30 between the insert and the wall of the body. The first insert has portions 22A which engage in the grooves in the wall of the body, and is provided with confronting grooves 24 extending in a direction along the length of the aerofoil form at a location intermediate the leading and trailing edges of the aerofoil form. The second insert 26 comprises a first panel extending across the void in the body, and has edges which engage in the confronting grooves in the first insert. The second insert has a second panel 28 closing at least part of an end of the void in the body. <IMAGE>
Patent GB-2043592-A (GB)
Title: Continuous towel cabinets
IPC: A47K10/28
Filed: 1979-03-05
Abstract: A continuous towel cabinet has a device for metering the length of clean towel which may be withdrawn at any one time. The device comprises a plate 25 mounted for vertical movement between a raised stop position Figure 3 and a lowered release position Figure 2, a pin 28 driven by movement of the towel to raise the plate 25, and a pair of suckers 31, 32 to hold the plate 25 raised, whereby further movement of the pin 28 beyond a stop 30 on the plate 25 and hence further withdrawal of clean towel is prevented. When the suckers 31,32 disengage the plate 25 falls into its release position Figure 2 and the cycle may be repeated. <IMAGE>
Patent GB-2015736-A (GB)
Title: Automatic inspection of and apparatus for testing of welds
IPC: G01N29/265
Filed: 1979-03-06
Abstract: For a thorough ultrasonic examination of a circumferential tube weld it is desirable to move a probe in a systematic scan extending around the tube and also towards and away from the weld parallel to the tube axis. There are described and illustrated a platform 5 provided with clamping means 6 for positioning the platform in relation to the tube and adapted for supporting and guiding the rotation of a probe carrying sleeve 7 adapted for embracing the tube, driving means 22 (Figure 5, not shown) for effecting rotation of the sleeve around the tube, further driving means 23 (Figure 6, not shown) for effecting independent rotation around the tube of a ring component of the sleeve and mechanism 61-63 mounted in the sleeve and arranged to be driven in response to speed differences between the sleeve and the said ring component thereof and when so driven to move a probe carrier 61 longitudinally of the sleeve. <IMAGE>
Patent GB-2017761-A (GB)
Title: A method for brazing aluminium or an aluminium alloy to a ferrous or cuprous alloy
IPC: B23K1/00
Filed: 1979-03-23
Abstract: Parts are subjected to the action of an organic flux containing metallic fluoborate as well as diethylenetriamine and diethanolamine. The flux is applied at least in the areas to be brazed and these areas are heated to the melting temperature of a soft soldering or brazing alloy coated on one of the parts. The metallic fluoborate is reduced to deposit the metal on the aluminium or aluminium alloy part. The method is applied to manufacture of a heat-exchanger with tubes (1), tube-plates (2) and headers (4) of copper or ferrous alloys e.g. stainless steel, and strips or fins (8) of various aluminium alloys. <IMAGE>
Patent GB-2019557-A (GB)
Title: Bidirectional optical data transmission
IPC: H04B10/2507
Filed: 1979-04-18
Abstract: A single optical fibre 10 carries data bidirectionally between two computers. The first computer is coupled by means of control logic to a first transmitter T1 and a first receiver R1. The first transmitter and receiver are in turn coupled to the optical fibre by means of a Y-coupler 2, 4, 6. A second computer is similarly coupled via control logic to a second transmitter T2 and second receiver R2, which are in turn coupled to the fibre by means of a second Y-coupler 14, 16, 18. To minimize problems due to reflections, each receiver is disabled when its corresponding transmitter is transmitting data. Correct reception of each bit at the second computer is confirmed by retransmission back to the first computer. <IMAGE>
Patent GB-2050820-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B23/00
Filed: 1979-06-06
Abstract: An umbrella comprises a resilient one piece ring 13 attached to a cover 14 of flexible material with a handle 15 connected at its respective ends to both the ring 13 and the cover 14 so as to support the flexible cover 14 in its erect position when the umbrella is in use. The ring is preferably sufficiently resilient to allow it to be twisted into at least two, preferably three loops for storage. <IMAGE>
Patent GB-2030096-A (GB)
Title: A vehicle anti-theft device
IPC: B60R25/022
Filed: 1979-07-19
Abstract: A vehicle anti-theft device is constituted by making the steering column in two parts 1 and 2, with a sleeve 3 axially slidable on the part 2 but keyed against relative rotation, and a collar 17 fixed on the part 1 with a lug 16 which is withdrawn from a recess 15 in the sleeve 3 when the latter is moved axially to render the two parts 1, 2 relatively rotatable thereby preventing the vehicle being steered. A control means 4 for moving the sleeve 3 comprises a bell-crank lever 5 forked and having lugs projecting into an annular groove 12 in the sleeve 3. A motion mechanism 6 has a rotatable element 9 carrying an arm 10 with a peg 7 extending into a slot 8 in the lever 5. The device may be concealed, the element 9 being rotatable by a key-operated lock and/or electrical switch and circuitry, possibly linked to alarm means and/or lights on the vehicle. <IMAGE>
Patent GB-2032706-A (GB)
Title: Step-by-step electric motor
IPC: H02K37/14
Filed: 1979-09-26
Abstract: An electric permanent magnet step-by-step motor has a stator provided with a plurality of slots 106, Fig. 3, 1' 2' 3' Fig. 5A, and coils adapted to generate an alternating succession of north and south poles N, S Fig. 5A. The coils are formed by n independent windings a, b, c each passing respectively through one slot 106 out of every n slots; the flow directions of the currents in the windings follow a pre-established sequence, Fig. 4, to generate 2p poles rotating with a predetermined step. Furthermore, the rotor comprises 2p permanent magnets 112 arranged radially in housings 111 in an iron body, the magnets being polarised at right angles to the radii and having like poles of successive magnets facing one another. <IMAGE>
Patent GB-2039007-A (GB)
Title: Joystick control electric switch
IPC: G05G9/047
Filed: 1979-12-20
Abstract: In a joystick controller for electric switches the joystick 16 is biassed to its neutral position by means of a garter spring 26 which encircles and embraces two ring members 20, 22, one ring member 20 being displaced in its own plane in response to pivoting the joystick about its pivot 14 and the other ring member 22 being secured to a fixed housing part 12. When the joystick is displaced beyond a threshold position, the garter spring 26 becomes dislodged as shown in Fig. 3 so that the joystick is retained in this position. <IMAGE>
Patent GB-2041609-A (GB)
Title: Security fence
IPC: G08B13/12
Filed: 1980-01-09
Abstract: This invention relates to a security fence including at least one tensioned wire connected to a detector for sensing movement of the wire. The detector comprises a movable element which sealingly separates two chambers in such a manner that any movement of the sealing element produces a change in volume of at least one of the chambers, which one chamber is connected to a pressure-sensitive switch actuator. Preferably, the said detector comprises an air cylinder with a piston which constitutes the said sealing element and is connected to the said wire.
Patent GB-2079065-A (GB)
Title: Linear differential transformer
IPC: G01V1/18
Filed: 1980-06-27
Abstract: A linear differential transformer is disclosed. The transformer has a primary, excitation winding (1), first and secondary windings (3, 4) connected in series opposition, and a displaceable core (6) for the windings. The core (6) is made of an alloy which comprises carbon, silicon, chromium, aluminium, yttrium and iron. The alloy has a permeability which does not vary, or varies in direct or substantially direct proportion to temperature, over the temperature range from 0 DEG C to 400 DEG C. Such a linear differential transformer could be used for a displacement transducer, which transducer could provide accurate results up to temperatures of approximately 400 DEG C. <IMAGE>
Patent GB-2054740-A (GB)
Title: Cross-flow fans
IPC: F04D17/04
Filed: 1980-07-21
Abstract: A housing for a cross-flow fan which is primarily for use with roof ventilators, comprises a guide body 25 to separate the incoming flow from the emerging flow. An impeller 26 is located between the guide body 25 and a baffle plate and the latter being arranged to guide the emerging flow, having a partially spiral shape. The guide body 25 and the baffle plate are so designed and arranged both in themselves and relative to each other that the fan, by maintaining an essentially low and constant level of dynamic energy at its outlet, operates to a flat and horizontal or approximately horizontal pressure/volume characteristic. The centre of turbulence during normal operation, is moved somewhat towards the interior of the impeller 26 and away from the impeller vanes and is held in this position. During restricted flow operation, the centre of turbulence is maintained in approximately the same radial position, moving along the inside of the row of impeller vanes against the direction of impeller rotation, a maximum of dynamic energy being, in addition, converted into static energy on the way to the housing outlet 15. <IMAGE>
Patent GB-2057405-A (GB)
Title: Apparatus for cleaning bottles
IPC: B08B9/34
Filed: 1980-07-22
Abstract: The treatment chamber of an apparatus for cleaning bottles is provided with at least one hollow spray pipe (4) provided with a plurality of radial apertures (8) each able to issue a jet of liquid from a source of pressurized fluid with which said spray pipe is connected, said jets being directed towards the neck of bottles and the pipe being internally provided with gapped annular members (9) each consisting of a resilient strip which functions as a scraper, during relative rotation between the pipe (4) and the members. Members 9 seal off the apertures in the spray pipe over a certain arc, an edge of each member cutting off any accretions in said apertures (8), so preventing blockage thereof. <IMAGE>
Patent GB-2066284-A (GB)
Title: Process for liquefying a solid carbonaceous material
IPC: C10G1/00
Filed: 1980-07-23
Abstract: A solid carbonaceous material, for example a coal, is slurried in a vessel (10) with solvent and then preheated by passage through the convection section (19, 20) of a hybrid boiler (21) which also produces steam (e.g. in a radiant section 51 to satisfy process steam requirements and produce at least some of the electrical power required for the liquefaction process. The preheated slurry is subjected to conventional liquefaction (29) to provide gaseous material (32), normally liquid liquefaction products (34, 35, 36) and a normally solid bottoms product (33). At least a portion of the bottoms product is combusted in the combustion section (22) of the hybrid boiler (21) to provide at least some of the heat for preheating the slurry. Preferably another portion is gasified (45) to produce hydrogen, which can be employed for solvent-hydrogenation (48, 37) and/or the liquefaction (17, 15, 29). <IMAGE>
Patent GB-2059505-A (GB)
Title: Centrifugal Pumps
IPC: F04D7/04
Filed: 1980-09-05
Abstract: A system for transporting a slurry (41) comprises a centrifugal pump connected in a conduit (18). The pump has a helical bladed rotor (30) mounted within a housing (20) provided with a vent (38). The bladed rotor creates a fluid vortex (40) with a central air core (42), the diameter of which varies to equalize the pressure in the housing with the back pressure in the conduit. The slurry is fed into an inlet port (26) of the pump and is carried by the fluid vortex to a pump outlet port (28). <IMAGE>
Patent GB-2062096-A (GB)
Title: Engine Unit
IPC: F02D23/02
Filed: 1980-10-07
Abstract: A diesel engine (1) has a supercharger (3) and an injection pump (4) and certain minimum air and fuel quantities delivered by the supercharger (3) and the injection pump (4) correspond to the quantities required for a simple induction operation of the engine. The fuel quantity to be delivered by the injection pump (4) is related by a control device (11, 12) to the quantity of air delivered by the supercharger (3). The control device (11, 12) may be made inoperative in order to reduce the fuel quantity used under partial loads. Consequently. the engine (1) can be operated, according to choice or in accordance with operating conditions, e.g. load or engine temperature either with the minimum fuel quantity required for simple induction operation or with a fuel quantity related to the quantity of air supplied, <IMAGE>
Patent GB-2087131-A (GB)
Title: Electrode assembly for e.g. secondary batteries
IPC: H01M10/44
Filed: 1980-11-03
Abstract: An electrode assembly comprising: a porous electrode having a first and second exterior face (122a,122b), and having a cavity (114) formed in the interior thereof between first and second interior faces (120a,120b) positioned opposite the first and second exterior faces (122a,122b); a counter electrode (not shown) positioned facing each of the first and second exterior faces (122a,122b) of the porous electrode; means (not shown) for passing an oxidant through said porous electrode; and screening means (126) for blocking the interior faces (120a,120b) of the porous electrode a greater amount than it blocks the respective exterior faces (122a,122b) of the porous electrode, thereby maintaining a differential of oxidant electrode surface between the interior faces (120a,120b) and the exterior faces (122a,122b). The electrode assembly is useful in a metal-halogen-halogen hydrate electrical energy storage device. <IMAGE>
Patent GB-2095999-A (GB)
Title: Fracture reduction apparatus
IPC: A61B17/60
Filed: 1981-04-01
Abstract: A fracture reduction apparatus is provided for use in external fixation. The apparatus comprises a base and a first unit which comprises a platform, selectively movable with respect to the base either along a first translational axis or pivotally about a first pivotal axis. The first unit comprises a pair of blocks (1,2) which are movable in unison with one another or at different speeds. The blocks (1,2) carry a strut (7) which in turn carries the platform. A second unit, similar to the first, is mounted on the platform of the first unit, and a third unit, similar to the first and second units, is mounted on the platform of the second unit. The units operate at right angles to one another. The third unit is provided with means for holding the ends of bone fixation pins. <IMAGE>
Patent GB-2077506-A (GB)
Title: Pushbutton switch for electronic timepieces
IPC: H01H1/029
Filed: 1981-04-07
Abstract: A pushbutton switch for an electronic timepiece comprises a plastics pushbutton (13) having a flexible head portion (13a) and an inwardly projecting leg portion (13c), and a pressure conductive rubber member (15) adjacent the leg portion (13c). The pressure conductive rubber member (15) is engageable with a pair of fixed contacts (17) mounted on a switch body (16) which is engaged within the pushbutton (13). When the flexible head portion (13a) is depressed, the pressure conductive rubber member (15) is compressed and rendered conductive thereby to connect the fixed contacts (17). The pushbutton (13) may be secured by adhesive in a hole (11a) in the watch case (11), or may be integral with the watch case (11). <IMAGE>
Patent GB-2076444-A (GB)
Title: Apparatus for the selective collection of silo drainage
IPC: A01F25/16
Filed: 1981-05-21
Abstract: An apparatus for selectively collecting silage effluent draining from a silo at a variable flow rate comprises a delivery conduit 12 extending at a small upward angle into a housing 14 set into the ground. The housing contains two collecting vessels in the form of mutually parallel drainage channels 15, 16. In dry weather conditions the effluent has insufficient velocity to detach itself from the outlet 13 and runs back under the conduit 12 to drop off into the rear channel 15. In conditions of wet weather, however, the silage effluent is diluted with rainwater and exits from the outlet 13 at sufficient velocity to fall into the front channel 16. The rear channel 15 is connected to a slurry tank, whereas the front channel 16 is connected to any suitable drainage system. <IMAGE>
Patent GB-2077309-A (GB)
Title: Carding machine cleaning brushes
IPC: D01G15/80
Filed: 1981-06-03
Abstract: A revolving cleaning brush for the doffer stripping roller of a textile carding machine comprises a brush body 10 which carries a plurality of brushing portions each of which extends helically around the periphery of the brush body and alternate portions have right and left hand helices. <IMAGE>
Patent GB-2106326-A (GB)
Title: Electro-magnetic lifting device with projecting, faceted pole piece
Inventor: PEACE JOHN
IPC: H01F7/20
Filed: 1981-09-25
Abstract: The invention provides an electro-magnetic lifting device 1 for ferrous articles comprising a ferro- magnetic body 2 having an electro- magnetic excitation winding 4 contained therein, and a ferro- magnetic pole piece 5 extending from the ferro-magnetic body, said pole piece tapering away from the ferro- magnetic body and being provided with a plurality of flat surfaces 6 around its circumference in a pyramid configuration. Slots 11 in the pole piece enable it to be engaged by a tool during assembly of the device. <IMAGE>