baber/WOPTO huggingface dataset:
Patent GB-2061020-A (GB)
Title: Electric motors; automatic control of speed
IPC: H02K7/20
Filed: 1980-09-02
Abstract: The drive motor 1 of a food mixer includes an adjustable circuit board 10 which comprises a control circuit for regulating the speed of the motor in dependence upon the setting of the board 10 as determined by the position of a user-operable knob 7. A tachometer is constituted by magnets 4 on a stub shaft 5 of the motor 1 in association with a pick-up coil 150 on the board 10. The control circuit is responsive to the output of the coil 150 for controlling the speed of the motor. The set speed of the motor is adjusted by rotating the knob 7 which causes the circuit board to move and hence varies the separation between the pick-up coil 150 and the magnets 4.   In the circuit arrangement shown, a triac 105 is placed in series with an AC series motor 101, 104, 101', and receives gating signals in each half cycle via a diac 108. The timing of the gating signals, and hence the amount of power supplied to the motor, is controlled by a phase control comprising a series- connected resistor 106 and capacitor 109, and capacitor 110 in series with a full-wave rectifier bridge 118. The bridge applies charging-current to a capacitor 113, and the capacitor 113 is able to discharge through a resistor 114 and transistor 151 whenever the tachogenerator coil 150 generates a signal to switch on the transistor 151. Adjusting the position of the coil 150 relative to the magnets 4 causes the amplitude of the signals in the coil 150, and ultimately the set speed of the motor, to be adjusted. <IMAGE>
Patent GB-2065882-A (GB)
Title: Coated shape memory effect elements
IPC: G01K5/48
Filed: 1980-11-18
Abstract: An element of shape memory effect alloy has a coating applied to it. The coating may serve to protect the surface of the element from environmental attack, or, when insulated from the element, may be electrically conductive to enable the temperature of the element to be varied by passing an electrical current through the coating. Specified coating materials include metals such as nickel, or an alloy, a lacquer, or a plastics material. The element may be helical or tubular in form, or in the form of a torsion bar.
Patent GB-2064283-A (GB)
Title: A thrower spreader
IPC: A01C15/00
Filed: 1980-12-05
Abstract: A thrower spreader, in particular for distributing fertilisers, has a drivable spreading device which is provided with at least one thrower element (2) comprising one inner part (4) and one outer part (6). The outer part is angularly movable relative to the inner part in a vertical plane and is adjustably arranged in respect of its inclination on the inner part. The parts (4 and 6) are connected together with friction contact by means of at least one resilient element (8), so that the ejection angle of the projected fertiliser particles can be adjusted simply and reliably without the aid of tools. <IMAGE>
Patent GB-2072782-A (GB)
Title: Expansible dowel
IPC: F16B13/08
Filed: 1981-01-27
Abstract: To enable the dowel to be anchored satisfactorily in boreholes having a relatively wide range of diameters it comprises an expansion element 3 composed of a sleeve 3b, which abuts a shoulder on expansion bolt 1, and radially resilient lamellae or tongues 3a which connect with the end of the sleeve 3b remote from head 1a of the bolt 1 and extend at an angle preferably of 15 DEG relative to the axis of the bolt 1. Expansion of the element 3 is achieved by drawing a frusto-conical expansion body 4 into the element 3 by rotating the bolt 1. <IMAGE>
Patent GB-2068211-A (GB)
Title: An article of footwear and a kit of parts therefor
IPC: A43B9/00
Filed: 1981-01-30
Abstract: A kit of parts which can be secured together by thongs to form a shoe includes an upper 15 having pre-punched holes adjacent the lower edge, and a moulded sole unit 10 which has a peripheral flange with preformed holes in it. The upper components are also pre- punched along their edges to receive the thongs, and include side panels, a heel panel and an apron. <IMAGE>
Patent GB-2094195-A (GB)
Title: Forging heavy articles
IPC: B21K1/06
Filed: 1981-02-24
Abstract: A heavy goods vehicle front axle beam 10 is produced on a forging press having a rated maximum forging pressure which would normally only enable the press to produce a much lighter weight beam. The method comprises taking an optimally shaped rolled and bent starting blank and subjecting the blank to two consecutive separate pressing operations in the forging press during a first one of which operations the dies of a first toolset act on only part of the blank to forge it to substantially its final shape and act on the remainder of the blank to forge it only to an intermediate shape and in the second of which operations the whole of the part shaped blank is forged to its desired final shape in a second toolset. The pressure exerted during each individual pressing operation is less than the rated maximum forging pressure of the press. <IMAGE>
Patent GB-2070926-A (GB)
Title: Picture frame
IPC: E06B3/54
Filed: 1980-09-01
Abstract: A picture frame comprising a symmetrical frame profile (1) with two recesses (2, 3). Both recesses may be used as means for inserting a picture or as means for mounting corner joints, suspension fittings, and upright fittings. The shape of the frame profile implies that both sides of the frame may be used as front, and only one cutting per frame side is necessary for shaping the frame. Therefore one picture frame permits choosing between two different visual angles of the frame. Furthermore, the frame may be used as a turnable frame with a picture on both sides. Such a frame is moreover easy to manufacture at the same time as waste of material is avoided. A suspension of the frame by means of a ball (8) surrounded by a cord (9) implies that the picture frame permits adjustment of the height from a permanent suspension point.
Patent GB-2075205-A (GB)
Title: Quantitatively regulating mixtures
IPC: G01G19/32
Filed: 1981-04-16
Abstract: To quantitatively regulate a mixture of individual constitutents, in particular concrete comprising cement, additive substances and water, the individual constituents are individually supplied to containers disposed on weighing means and the respective weights of the individual constituents are displayed digitally on a display means on respective ones of a plurality of juxtaposed digital display fields (A1, A2, A3 and A4). The nature of the constituents and desired values which are to be weighed in are also displayed. Further, for each constituent, there is provided an analogue display field (A1', A2', A3' and A4') for producing an analogue display both of the corresponding desired value and also the respective actual value of the weight of such constituent. <IMAGE>
Patent GB-2091342-A (GB)
Title: I.C. engine fuel heating device
IPC: F02M31/16
Filed: 1981-04-16
Abstract: Fuel flowing from a pump to a carburettor passes through a copper U-tube 16 within an aluminium casing containing coolant from the engine radiator. The fuel is heated to just below its vaporisation temperature. <IMAGE>
Patent GB-2076391-A (GB)
Title: High silica glass
IPC: C03C17/23
Filed: 1981-04-23
Abstract: A fully dense high silica glass is made by taking a silica glass, causing it to phase separate into two inter- connecting phases, then removing one phase to leave a porous high silica glass, forming a layer of metal oxide over the surface of the pores of the glass and finally sintering the metal oxide-coated porous glass. Preferably a titanium oxide layer is formed by first producing a layer of titanium chloride and then hydrolysing this layer to form a surface layer of titanium oxide. The formation of a metal oxide layer on the pores of the glass allows a lower sintering temperature to be used.
Patent GB-2075849-A (GB)
Title: Improvements in or relating to hearing protectors
IPC: A61F11/14
Filed: 1981-05-01
Abstract: Hearing protectors having an earshell 20 and ear cushion 21 encloses a volume of air. A membrane 22 in the earshell 20 has a predetermined stiffness and mass so as to flatten the attenuation response of the protector (within a range of about 10dB) from low frequencies (200Hz or less) up to frequencies important for understanding speech (at least 2kHz). Alternate or additional structures for flattening the response include further membranes and barriers dividing the enclosed volume of the shell with interconnecting tubes. An ear plug 30 is also disclosed, having a channel or opening 32 closed by a membrane 33. <IMAGE>
Patent GB-2078958-A (GB)
Title: Sonar transducer mountings
IPC: B06B1/06
Filed: 1981-05-12
Abstract: A sonar transducer array has a mounting drum 1 to which are secured twenty seven bars 2 extending lengthwise of the drum and spaced apart around its circumference. Each bar carries three sonar transducers 3 directed radially outwards of the array. The bars 2 are reduced in width between the transducers 3 so as to reduce coupling between them. Each transducer 3 comprises an aluminium forward resonator, a piezo-electric element and a steel rear resonator, the bar 2 extending intermediate the piezo-electric element and the forward resonator at a node point of the transducer. <IMAGE>
Patent GB-2101890-A (GB)
Title: Apparatus for and method of treating a living body
Inventor: MORLEY HUGH BARRIE
IPC: A61H23/04
Filed: 1981-07-03
Abstract: Apparatus for muscular stimulation or massage of a patient is in the form of a chamber (10) with a window (11) covered by a supported flexible membrane (12) against the outside of which a part of the patient's body, clothed or undressed, is located. Water from a jet (13) is caused to break and impinge on the inside of the diaphragm to provide the stimulation or massage and then drain to a sump (17) where a pump (14) sends the water back to the jet (13). <IMAGE>
Patent GB-2079887-A (GB)
Title: Insulating drive link
IPC: F16C7/00
Filed: 1981-07-13
Abstract: According to this invention an elongate linkage comprises one or more rods (1) formed from substantially parallel fibres encapsulated in a bonding material, the rod or rods being contained in a tubular member (4), wherein the space in the tubular member not occupied by the rod or rods is packed with a low density filling material (5). <IMAGE>
Patent GB-2081101-A (GB)
Title: Sanitary napkin
IPC: A61F13/56
Filed: 1981-07-24
Abstract: A sanitary napkin has a fluid absorbent matrix (2 in phantom) and a fluid impervious baffle with a garment attachment adhesive 3 disposed in a spaced uniformly distributed configurational pattern which is inset from the napkin periphery and covers between 50 and 90% of the undergarment facing surface of the baffle. <IMAGE>
Patent GB-2103188-A (GB)
Title: Winding film into large firm rolls under controlled tension
Inventor: BARNETT ROGER CHARLES
IPC: B65H18/26
Filed: 1981-08-06
Abstract: During winding/unwinding film stock (F) onto or from core (6) under constant tension, a large radial force is exerted by roller (17) on the roll (7) in the region where incoming film stock (F) is laid on the roll (7). Roller (17) is biassed against roll (7) by gravity or pneumatic or hydraulic pressure. In this manner very large, firm rolls (7) can be speedily wound without the use of cheek plates. The tension control means (15, 16, 12) provided to maintain the film stock tension at a substantially constant, low value, includes a film-stock tension sensor (15, 16) and a control unit (12) arranged to control the output torque of the motor (8) in dependence on the sensed tension. <IMAGE>
Patent GB-2104420-A (GB)
Title: Power operated machine tool
Inventor: DUDDEN CHRISTOPHER JOHN
IPC: B23Q5/40
Filed: 1981-08-28
Abstract: The machine tool has a motor driven lead screw (25) which cooperates with a nut (26) to feed the lead screw and a tool bit held thereby at a pitch controlled rate. The nut is fixed in a tubular nut holder (16) which can be rapidly advanced, together with the lead screw, with respect to the tool body (10) at the start of a machining operation preferably by a fluid pressure operated piston. Once in a fully advanced position the nut holder is locked with respect to the tool body by a locking mechanism including locking elements e.g. balls (30) located in apertures (29) in the nut holder on further forwards movement of the lead screw relative to the nut at a pitch controlled rate. After a machining operation the motor is reversed and the lead screw moves backwards at a pitch controlled rate until the locking mechanism is disengaged, when the lead screw, together with the nut and the nut holder can be rapidly retracted by e.g. a spring. <IMAGE>
Patent GB-2089819-A (GB)
Title: Conformal coating curable by combination of radiation and heat
IPC: H05K3/28
Filed: 1981-12-04
Abstract: A process for conformally coating an irregularly shaped article, e.g. an electronic circuit board with components attached, comprises coating the article, e.g., by dipping or spraying with a composition comprising   (1) a solventless, radiation and heat curable, reactive, liquid resin containing at least two olefinic carbon- to-carbon double bonds per molecule;   (2) a thermal initiator for (1); and optionally; (3) a photoinitiator for (1); and exposing said coated article to radiation and heating the article to a temperature in the range 50 to 250 DEG C for a time sufficient to obtain a completely cured solid coating. The radiation exposure is preferably effected before the heating. If high energy ionizing radiation is used, no photoinitiator is necessary in the composition. Preferred compositions are UV-curable and contain a photoinitiator. r
Patent GB-2089968-A (GB)
Title: Ventilator for Use in a Roof Space Ventilation System
IPC: E04D13/17
Filed: 1981-12-17
Abstract: A ventilator for use in a roof space ventilation system comprises a base 10 having ribs 11 which define a plurality of channels through which air can flow, and at least one cross- member 14 which bridges the ribs to form a rigid structure. The ventilator is fixed to the roof joists and allows free passage of air between insulating material and the inside surface of the roof. In an alternative embodiment, the ventilator comprises corrugated flexible material with special expandable corrugated sections which can be attached to the roof rafters regardless of the rafter spacing.   <IMAGE>
Patent GB-2096871-A (GB)
Title: Fishing reel
IPC: A01K89/015
Filed: 1982-03-04
Abstract: A rotary fishing reel comprises a holder and a spool on the holder, a control member (7) manually operable without removing the spool from the holder and ratchet means comprising a set of ratchet teeth (41) which are driven by the spool and at least one pawl (35), the control member being selectively movable between a plurality of positions to effect movement of the pawl and establish corresponding conditions of the ratchet means, said conditions including: a neutral condition in which the pawl is disengaged from the ratchet and the spool can rotate freely on the holder in either sense; and a condition in which the pawl engages the ratchet teeth and exerts resistance to rotation of the spool in either sense. Preferably the reel includes two pawls. In operation movement of the control member effects movement of the slide (33) with resultant movement of at least one pawl into contact with ratchet teeth (41). <IMAGE>
Patent GB-2096216-A (GB)
Title: Cover and frame assembly
IPC: E02D29/14
Filed: 1982-03-04
Abstract: A new and improved cover and frame assembly comprises a cover comprising two parts each provided with three bearing surfaces (41) part which cooperate with complementary seating formations (19) provided on the frame, each seating formating (19) having a bearing surface (20) which is inclined relative to the general plane of the cover and extends downwardly from the upstanding wall radially inwardly so that the cover parts are urged towards one another, when received in the frame. <IMAGE>
Patent GB-2121327-A (GB)
Title: Making heat exchange elements
Inventor: KRITZER RICHARD WALKER
IPC: B21C37/20
Filed: 1982-05-24
Abstract: In the manufacture of an elongate heat exchange element 1 having outwardly projecting fins 4 disposed at various angles to the length and width of the element, an elongate tubular member 2 is fed longitudinally past cutters 13, 13a. These cutters are reciprocated into and out of the tubular member 2 in skiving actions to produce the fins 4, and the angles of the cutters 13, 13a relative to the length and width of the tubular member 2 moving therepast are changed between at least some of the reciprocations of the cutters. <IMAGE>
Patent GB-2102920-A (GB)
Title: Spade valves
Inventor: JUDD HECTOR ARTHUR
IPC: F16K3/20
Filed: 1982-06-03
Abstract: A spade valve including a housing having an inlet 17 and an outlet 27, a valve blade 12 slidingly mounted within a passageway 18 in the housing for movement between the inlet and outlet, and a first seal means surrounding the inlet for sealingly engaging the valve blade and a second seal means surrounding the outlet for sealingly engaging the valve blade, the first and second seal means comprising individual seal elements 41 arranged end to end to surround the inlet or outlet and compression means 44 for compressing the seal elements into engagement with the valve blade. The compression means may comprise wedges 63 or screws. <IMAGE>
Patent GB-2111531-A (GB)
Title: Method for manufacturing titanium metal
Inventor: OKUDAIRA SHIGENORI
IPC: C22B34/12
Filed: 1982-07-09
Abstract: A method for manufacturing titanium metal comprises feeding a titanium chloride and powdered particles of a reducing metal into a reaction zone, and reacting the titanium chloride and powdered reducing metal at a temperature above the melting points of the reducing metal and the chloride salt of the reducing metal.
Patent GB-2106052-A (GB)
Title: A tubular tyre
Inventor: KRUMEY HEIMO
IPC: B60C19/04
Filed: 1982-07-09
Abstract: A tubular tyre for single-track vehicles comprises an outer casing (3) having a tread strip (2), and a pneumatic tube (5) within the casing (3), the edges of the casing (3) being joined together at the inner periphery of the tyre by means of a slide fastener (4). The slide fastener may be of segmented or continuous profile type. <IMAGE>
Patent GB-2113085-A (GB)
Title: Chair support base
Inventor: PICO CARLOS MAORTUA
IPC: A47C7/00
Filed: 1982-07-26
Abstract: A support base for a chair pedestal comprises a central core (2) and a plurality of identical, radially extending arms (3) integrally formed with the core (2) wherein each arm (3) has a substantially flat upper surface defining a recess receiving a non-slip support element (6) for use as a footrest. <IMAGE>
Patent GB-2109708-A (GB)
Title: Materials separation system and method
Inventor: CLEAVELAND NORMAN
IPC: B03B11/00
Filed: 1982-11-29
Abstract: In a materials separation system a distributor (13A, 13B) for jigs (14A, 14B, 14C) used in the separation of heavy minerals, also diamonds, from pulp dredged up from a body of water (and separated by a trommel (10A, 10B) according to size) functions to supply all of the finer material, including sand which is not rejected by the trommel, to the feed boxes of the jigs, but when the material delivered by the dredge and trommel contains excessive sand, the sand is caused to overflow (at 17) to, if desired, one or more secondary distributors (18) and jigs (25). In this way the primary jig or jigs and the dredge can be kept operating at full dredge capacity. <IMAGE>
Patent GB-2113721-A (GB)
Title: Chromate composition for treating electrodeposited zinc- nickel alloys
Inventor: KAMITANI MASAAKI
IPC: C23C28/00
Filed: 1983-01-11
Abstract: An aqueous acidic chromating solution, suitable for forming coloured chromate coatings on zinc-nickel alloy electrodeposits containing up to 15% by weight of nickel has a pH of from 1.3 to 2.7, a hexavalent chromium content of at least 0.5 grams per litre, preferably from 0.5 to 100 grams per litre, and contains sulphate in an amount such that the weight ratio of SO4:Cr<6+> is from 0.025:1 to 1.5:1. In some instances, a flash electrodeposit of zinc may be applied to the zinc-nickel alloy electrodeposit before it is immersed in the chromating solution. Alternatively, the zinc-nickel alloy electrodeposit may be immersed in the chromating solution and the solution electrolyzed, with the zinc-nickel alloy surface as the anode, at low current densities for a short period of time, after which, the electrolysis is discontinued and the zinc-nickel alloy surface is maintained in the chromating solution until the desired coloured chromate film is formed. <IMAGE>
Patent GB-2135562-A (GB)
Title: Plough offset adjustment
Inventor: DOWDESWELL CHARLES VERNON ROGE
IPC: A01B15/14
Filed: 1983-03-03
Abstract: The plough frame (1) including the plough carrying beam (10) is laterally movable relative to mounting support (3) from a tractor for offset adjustment by actuator means (4). The actuator means (4) may consist of or include screw mechanism but is shown provided by a hydraulic ram (40) pivotally mounted at (140) on the plough frame (1) and is connected by links (42, 45) to rearward and forward parts (330, 34) of the mounting support (3) via bell crank levers (41, 44) pivotally carried by the plough frame (1). The plough frame (1) is shown having a sliding pin and slot connection (130, 131 and 120, 121) with the mounting support (3) for lateral offset adjustment movement. For setting ploughing furrow width adjustment of the angle of inclination of the plough beam (10) is by turnbuckle adjustment (430) between the bell crank levers (41, 44) and/or by variable length link connection (as at 450). <IMAGE>
Patent GB-2119946-A (GB)
Title: Image receiving element in a dye diffusion transfer material
Inventor: STRAUSS JURGEN
IPC: G03C8/24
Filed: 1983-05-03
Abstract: A photographic material which is suitable as an image-receiving element for the dye diffusion transfer process contains in a dyeable layer positioned on a substrate particles of crystalline aluminosilicates which have been exchanged with nickel or copper (II) ions, in particular as a metallisation agent for the formation of coloured complexes of organic colourless or coloured complex formers. Corresponding nickel complexes having an improved light stability are formed from the image dyes which may be chelated and which are transferred imagewise into the dyeable layer during development.
Patent GB-2156690-A (GB)
Title: Frame for snooker balls
Inventor: GAVIN WALTER BRIAN
IPC: A63D15/00
Filed: 1983-08-26
Abstract: The frame is of diamond shape with a separating piece across its widest point to give two triangles, the upper triangle being used to set up the fifteen red balls at the start of a game of snooker. The distance between the apices of the upper and lower triangles is such that when the apex of the lower frame is located at the black ball spot, the top red ball is as close to the pink ball as possible. <IMAGE>
Patent GB-2182769-A (GB)
Title: Detecting small targets
Inventor: WICHMANN GUNTER
IPC: H04N5/33
Filed: 1983-11-16
Abstract: In a target detecting system in which a detector scans a field of view, a small object 4 is distinguished from a larger object 5 by analysis of the frequency spectrum 4', 5' of the detector output. Preferably the amplitudes of the components of two particular frequencies f1, f2 are compared, these frequencies being such that the f2 component will be less than the f1 component only if the object is small. <IMAGE>
Patent GB-2134353-A (GB)
Title: Co-operative satellites
Inventor: YOUNG RONALD WILLIAM
IPC: H04B7/19
Filed: 1984-01-12
Abstract: A satellite orbiting arrangement including an orbiting cluster 10 of co- operative satellites in which inter- satellite communication is to be maintained substantially constantly, the arrangement further including an inter- satellite communication satellite 18 positioned remotely from the cluster in an orbit selected to maintain at least approximate station with the cluster and to enable communication with each satellite of the cluster to be maintained substantially constantly. <IMAGE>