baber/WOPTO huggingface dataset:
Patent GB-2143394-A (GB)
Title: Passive optical coupler
Inventor: WOOD THOMAS HUNTINGTON
IPC: H04B10/2507
Filed: 1984-07-10
Abstract: In a multiple-access local network taps are provided at each node for coupling a small fraction of the signal between the network (13) and a local receiver (14) and for coupling a local transmitter (15) to the network (13). To minimize the amount of power extracted while at the same time maximizing the coupling efficiency between the transmitter and the network, a mode selective coupler (11) is employed along with a mode scrambler (12). The transmitter (15), operating in the preferred mode, couples a large percentage of its signal to the network where it is scrambled among all of the modes capable of propagating along the network bus (13). Likewise, the mode selective coupler (11) directs a large fraction of one mode or a small group of modes travelling in the bus (13) to the local receiver (14). Thus, the arrangement permits very high coupling efficiency for injecting signal into the network while, at the same time, the fraction of the total signal removed at each node remains low. <IMAGE>
Patent GB-2152746-A (GB)
Title: Electric lamp and cap therefor
Inventor: TIMMINS LIONEL GEORGE
IPC: H01K1/46
Filed: 1984-12-10
Abstract: A bayonet-type lamp cap is formed of plastics material keyed to the lamp envelope so as to prevent relative rotation, and formed with at least one projection which engages a recess in the envelope to secure the cap to the envelope. <IMAGE>
Patent GB-2170140-A (GB)
Title: A method for the manufacture of cylindrical sound records
Inventor: MILLER DUNCAN BARTON
IPC: B29D17/00
Filed: 1985-01-25
Abstract: A method for the manufacture of cylindrical sound records in materials other than wax uses a mould carrying a record in negative on its bore 17 and having suitable closures, into which a resin is introduced, the mould being then rotated or shook so that the fluid takes up the shape of the inner surface of the mould while that resin solidifies. <IMAGE>
Patent GB-2171079-A (GB)
Title: Reversible tool case
Inventor: LEGG GERALD ALEXANDER
IPC: B25H3/02
Filed: 1985-02-16
Abstract: A reversible tool case has two halves of boxes 10 fitted with tool retaining brackets 12, a double reversible hinge 11 and double handle 13. A clip 14 may secure the box halves 10 in an open condition for access to the tools. <IMAGE>
Patent GB-2164307-A (GB)
Title: Sail rigs
Inventor: BENNETT TORIX PETER
IPC: B63B35/79
Filed: 1985-03-07
Abstract: A sail rig for a sailboard or other craft comprises a sail, two masts 2, 3 coupled together at or near their bases and pivotally mounted on the board or craft, the sail being attached to each mast along a respective edge of the sail; and a wishbone boom 6 arranged between the masts to space them so that the sail adopts a fanlike configuration between them, and to provide a hand hold for the sailor of the board. <IMAGE>
Patent GB-2156171-A (GB)
Title: Electrical connector
Inventor: BOND BRIAN CHARLES
IPC: H01H85/54
Filed: 1985-03-12
Abstract: A cartridge fuse holder of the bayonet type comprises an outer insulating housing member 1, including a contact 12 having a tag 13 and also a connector 16 with tags 17. An inner insulating cap 3 having a connector 4 fits into the housing member 1 in a telescopic relationship, the two being held together mechanically by a bayonet connection comprising pins 20 and slots 21 and being spring loaded in relation to one another by a spring 6. The connector 4 is fitted with a soft metal shim 10 which receives one end of a fuse 14, which is biased by a spring 11 against the contact 12. The connector 4 engages the connector 16 over an annular zone 16A so that a circuit is established between the tags 13 and 17 through the fuse 14. The cap 3 is capable of axial movement in relation to the connector 4 which is limited by a shoulder 7 so that the cap can move against the effect of the spring 6 without moving the connector 4 and thus without interrupting the circuit through the contact zone 16A. <IMAGE>
Patent GB-2160087-A (GB)
Title: Storage device
Inventor: JACKSON JOHN
IPC: A45D27/29
Filed: 1985-05-22
Abstract: A device for storing a plurality of disposable razors (52) has a flat base portion (10) and two side wall portions (20, 22) substantially perpendicular to the base portion. The side wall portions (20, 22) are provided with a groove (28) defined by two parallel ribs (32, 34). In use, the razors (52) are slid into the groove and may be stacked upon each other. The device is fixed to a wall by means of adhesive pads. <IMAGE>
Patent GB-2160490-A (GB)
Title: A folder for surgical sutures
Inventor: FERGUSON DOUGLAS MELVIN
IPC: A61L17/00
Filed: 1985-06-05
Abstract: A pack of needled sutures comprising first, second and third panels (1,3,4) of which second panel (3) is hinged along opposite sides of the other panels (1,4), the first (1) and second (3) panels having recesses (9,12) which register in the folded pack and the second panel (3) having an incised tab (11) on one side of recess (12) and an aperture (13) on the other side of the recess (12) to receive and grip a curved needle (17) which extends across the recess (12), the third panel (4) being shaped to engage the first panel (1) and hold the folder closed without obstructing access to the needle (17).
Patent GB-2163855-A (GB)
Title: Clinical thermometer in form of a dummy teat
Inventor: LUONG MING-CHONG
IPC: A61J17/00
Filed: 1985-08-27
Abstract: A thermometer, particularly for babies, is in a form analogous to a dummy teat. The thermometer includes a nipple or teat 12 which has an electronic sensor 40 at or near its tip and a housing 14 for electronic circuitry and a visual (e.g. L.C.D.) output display. The teat and housing are joined in a water-tight manner. The thermometer is non-circular shaped, e.g. it has a pair of diametrically opposed, radially outwardly projecting, integral wings 60, so that it can be placed in the mouth in a defined orientation with the sensor positioned on the underside of the teat so that the baby's tongue will contact the sensor each time the thermometer is used. A half-ring 16 or loop is hinged to the housing with the axis of hinging displaced about 45 DEG  clockwise to the upright when in use. When not in use, the teat is immersed in sterilising liquid, e.g. alcohol, in a container 18. A switch 42 is provided for activating the electronic circuitry and display. <IMAGE>
Patent GB-2166321-A (GB)
Title: Emergency call unit
Inventor: PINDER RUSSELL STUART
IPC: H04M11/04
Filed: 1985-10-31
Abstract: A call unit for use in an emergency call system comprises speech receiving and transmitting means (11) capable of operating in a handsfree mode. A first non-volatile memory (10a) stores information determining the destination of an emergency call made from the unit. Such call is initiated by microprocessor operating means (9) operating in a normal mode in response to a control signal from a generator, for example a radio signal generator (6), located remote from the unit. This operation initiates dialling by an automatic dialler (8) to an emergency call destination, and on connection handsfree two-way speech communication is permitted. The unit includes switch means (16) having a first normal switching condition in which the microprocessor operates in the normal mode. The switch means (16) responds to an incoming call signal on the telephone line to adopt a second switching condition causing the microprocessor to operate in a receive mode. In this mode receipt of a control signal from the signal generator (6) causes the microprocessor to enable handsfree two-way speech communication between the call unit and the incoming caller without the use of the unit physically having to be present at the call unit itself. <IMAGE>
Patent GB-2168737-A (GB)
Title: Improved bearing system for a roller cone rock bit
Inventor: HALL DAVID R
IPC: E21B10/20
Filed: 1985-12-20
Abstract: A roller cone rock bit is disclosed with an improved bearing system. The improvement comprises a journal bearing (41) which is substantially frusto-conically shaped and a roller cone bearing (42) which is reverse shaped to mate with the journal bearing. The invention also includes a means (43) for maintaining the journal and roller cone bearing in compression against each other. In the preferred embodiment, the journal and roller cone bearings comprise polycrystalline diamond and the compression is maintained by a threaded bolt (43) which is tightened to the point of putting the bolt in tension. In one preferred embodiment, the bolt is threaded into the cone and rotates in the center of the journal. In another preferred embodiment, the bolt is threaded into the leg (34) of the journal and the cone rotates about it. In both of these embodiments, thrust bearings (45, 46) are located between the head of the bolt and the leg or cone surface contacted. The bolt's threads can either be locked in place, or allowed to self- tighten as the cone rotates during drilling. The invention has application in extending the life of bits used in oil, gas and geothermal drilling operations. <IMAGE>
Patent GB-2174413-A (GB)
Title: Fabric take-down device
Inventor: FUCIK MILAN
IPC: D04B15/88
Filed: 1986-03-17
Abstract: The device, for use with a circular knitting machine, for example for use a double-cylinder sock knitting machine, has a circular array of vertically displaceable take-down elements (1). For use at high knitting speeds the elements (1) are rigid, flat-shaped bodies, the toothed, fabric-engaging ends (P) of which are bent by 90 DEG  with regard to the remaining parts. <IMAGE>
Patent GB-861942-A (GB)
Abstract: 861,942. Ignition systems. SMITSVONK N. V. June 3, 1957 [June 6, 1956], No. 17501/57. Class 7(4). [Also in Group XXXV] An ignition system for gaseous and/or liquid fuels especially in or for use with gas turbines, oil-fired boilers and the like, comprises a transformer 2, 3, rectifying means 4, an ignition condenser 12 charged by the transformer through the rectifying means, an electromagnetic switch device 7, 8 and a low voltage ignition plug 13 connectible by the switch device to the ignition condenser, the switch device being automatically operated by voltage or current changes across the ignition condenser whereby to permit the condenser to discharge across the ignition plug. As shown the electromagnet 7 is strong enough to keep the contacts 9, 10 apart until the charging current drops to a predetermined value. In a modification the electromagnet is in parallel with the condenser 12 and the current in the electromagnet increases as the condenser is charged and this increase in current is used to close the contacts. If the system is supplied from a direct current mains supply a periodically operating interrupter or a buzzer is incorporated in the primary transformer circuit.
Patent GB-2185087-A (GB)
Title: Shock absorber
Inventor: WILLIAMS GEOFFREY HUGH
IPC: F16F9/48
Filed: 1985-07-04
Abstract: A hydraulic shock absorber comprises a cylinder (1), a piston rod (2), a fluid or fluids contained within the cylinder, a piston structure (7, 12), the piston structure incorporating fluid conducting passageways (10, 11) and means (13, 14) to regulate the passageways, the regulating means being controlled by relative displacement between the piston structure and the cylinder. If a displacement is applied to the shock-absorber which causes relative motion between the piston structure and the cylinder, fluid will be caused to pass from the side of the piston structure to the other side through passageways which offer a degree of restriction to fluid dependent on the position of the piston structure relative to the cylinder.
Patent GB-2200144-A (GB)
Title: Improvements relating to roller gins
Inventor: TRUSSELL JOHN
IPC: D01B1/06
Filed: 1987-04-16
Abstract: A roller gin has its ginning roller (3) clad with toothed clothing wire and radially spaced from the cooperating surfaces of at least one stationary ginning member (4). A second ginning member (6) may be mounted adjacent the first member (4) with the provision of means for adjusting the clearance (7) between them and also means for adjusting the radial clearances (8 and 9) between the roller 3 and the stationary members (4 and 6 respectively). A perforated grid (17) is positioned immediately below the roller (3) to clear entrained dirt and any broken seed husk from the roller (3).   Other means of equipping the roller 3 with raised projections may be used, for example abrasive covering in the manner of a "granular card", or pinned fabric in the manner of fillet clothing. A moving knife 14, having a seed removing edge 16, is carried by an angularly oscillating roller 15. A seed grid 11 allows disposal of separated seed. A fluted doffer roll and a cooperating separating plate 19 represent a stripping arrangement. <IMAGE>
Patent GB-2192796-A (GB)
Title: Portable line marking apparatus
Inventor: COLLYER PETER RICHARD
IPC: A63B71/04
Filed: 1987-05-05
Abstract: Portable line marking apparatus (2) for marking a throwing line in the game of darts comprises an elongate abutment device (4) against which the feet of dart players can abut, and fixing means (6) for releasably fixing the elongate abutment device (4) to a darts mat (8) such that the elongate abutment device (4) is fixed solely to the darts mat (8). The fixing means may comprise nuts (18) and bolts (20) securing a plate (16) or plates, or may include a bayonet fixing, snap fitting or resiliently biassed jaws. <IMAGE>
Patent GB-2204742-A (GB)
Title: Permanent magnet rotor for a dynamo-electric machine
Inventor: TURNER ALAN BURROWS
IPC: H02K1/27
Filed: 1987-05-14
Abstract: A rotating part 10 for a dynamo-electric machine comprises a magnetic core 11, a non-magnetic side wall 12 of high strength, a magnetic portion 13, and a retainer ring 14 divided into magnetic parts 15 and non-magnetic parts 16. Thus the resulting machine may be of small size and light weight, and suitable for high speed operation. The effect of the non- magnetic portions is to prevent flux leakage (cf Fig 2,3), which would occur if the retaining ring was magnetic material throughout, whilst retaining the small "air" gap. <IMAGE>
Patent GB-2204470-A (GB)
Title: Radiotherapy apparatus
Inventor: CLARKSON DOUGLAS GALLIE
IPC: A61B6/04
Filed: 1987-09-11
Abstract: Radiotherapy apparatus of the isocentric type for use with high energy ionising radiations. In one embodiment a patient support assembly (24) is mounted to a gantry (12) so that when the gantry (12) is rotated through an angle of  alpha  DEG , the patient support assembly (24) is rotated by an angle of - alpha  DEG  with respect to the gantry (12) about a separate horizontal axis (26) parallel to the gantry rotation axis (22) and moving with the gantry (12). This results in maintaining the couch top horizontal for all gantry angles. With the gantry (12) at an angle of 0 DEG , i.e. the radiation source (18) directly above the couch, the patient, instead of being at the height of the gantry rotation axis, is lower by the distance separating that axis from the horizontal axis of rotation of the patient support assembly (24). Because the radiation source (18) is still the same distance from the patient it is also lowered by the same amount, yet with the gantry at 180 DEG , that is the radiation beam pointing vertically upwards, the patient is no higher from the floor than with existing techniques. In another embodiment the patient support assembly (24b) is mounted separate from the gantry (12b) with the patient support assembly (24b) driven in response to the gantry rotation such that the couch top moves in a manner identical to that described above.
Patent GB-2223039-A (GB)
Title: Sheet spreading device
Inventor: WEIR HENRY JOHN
IPC: D06C3/06
Filed: 1988-06-03
Abstract: A sheet spreading device in which a sheet is fed with its centre generally on the centreline (16) of the device, comprises two forward endless belt drives (17, 18) mounted symmetrically to either side of the centreline 16 and two rearward endless belt drives (19, 20) mounted immediately behind the respective forward belt drives. The adjacent inner runs (25a, 32a) of the forward and rearward belt drives on each side of centreline 16 lie parallel, are spaced by a small gap and move in the direction away from the centreline 16. A multiplicity of spaced rotary cams (40) (belt oscillators) engage periodically the inner belt runs (25a) and comprise drums, each having a rounded diamond shape periphery (42). The drums are driven in synchronism with the belt drives to move portions of inner belt runs 25a towards those of belt 32a to "nip" the belts and therefore portions of the sheet between the belts at spaced locations to spread the sheet as inner runs 25a, 32a move away from centreline 16. Inner runs 32a of belt 32 have supports 52, 53 and may also include the cams 40. <IMAGE>
Patent GB-2206351-A (GB)
Title: An epoxy-based electric insulation adhesive
Inventor: HAGIWARA YASUYO
IPC: C08G59/50
Filed: 1988-06-10
Abstract: A room temperature curing electrically adhesive comprises a polyfunctional epoxy compound, at least one alicyclic amine curing agent and phenol or an alkyphenol cure accelerator. Electrolytic corrosion is eliminated or minimized when using this adhesive.
Patent GB-2222129-A (GB)
Title: Vehicle bodies
Inventor: RILEY DEREK ARNOLD
IPC: B61D17/04
Filed: 1988-07-14
Abstract: A vehicle body comprises at least one wall, floor or roof member having an aperture (11) therein, a frame member, e.g. for a window, fitted at said aperture, the wall, floor or roof member, at least in the region of the aperture, being formed from one or more extruded panel sections (10) and being provided adjacent the aperture with a pair of slots (14) having inwardly protruding lips, which slots are formed during extrusion of the panel section or sections, and lie one on either side of the aperture, and a plurality of fastening elements such as bolts retained captive in said slots by said lips, the frame member being attached at the aperture by said retained fastening elements. <IMAGE>
Patent GB-2215635-A (GB)
Title: Emulsification method and apparatus
Inventor: OLIVER RAYMOND
IPC: B01F3/08
Filed: 1988-11-08
Abstract: Apparatus for producing a multi-phase emulsion explosive from a liquid organic fuel medium and an immiscible liquid oxidiser comprises a mixing chamber 5, flow constrictor means 8, 9 for introducing the liquid oxidiser as an emergent turbulent jet to said chamber and causing formation of droplets of said oxidiser in situ within the chamber, means 10 for introducing the fuel medium to said chamber so that the fuel introduced thereby contacts and stabilises the droplets of oxidiser solution as they are formed to maintain same as discrete droplets of oxidiser liquid and thereby provide an emulsion suitable for use as the basis for an explosive system. The oxidiser may be one or more of ammonium nitrate, alkali or alkaline earth nitrates and perchlorates and amine nitrates. An emulsifier such as sorbitan mono- or sesqui-oleate may be added to the fuel medium (continuous phase). The fuel phase may comprise one or more saturated or unsaturated hydrocarbons, vegetable or mineral oils for dinitrotoluene. <IMAGE>
Patent GB-2215769-A (GB)
Title: Anti-theft device
Inventor: FINE-THOMPSON COLIN EWART
IPC: E05B67/38
Filed: 1989-01-18
Abstract: An anti-theft device specifically for a waste skip (10) comprises a housing part (16) and an L-shaped part (16a) which is slidable relative to it by means of lips (20, 23) an opening being defined by member (21) and an end part of the longer limb (24) of the part (16a), there being a space within the housing at the inner side of the opening, and a padlock to lock the parts (16, 16a) together. It is intended that the device is fitted to lifting means (14, 15) on a skip, a cylindrical part (14) of the means being received in said opening and an ear (15) thereof being received in said space. This prevents unauthorised removal of the skip by attachment of lifting chains on the lifting means. Member (21) and limb (24a) have V-shaped recesses (22b) (24a) to form the opening and V-shaped projections (22c, 29). <IMAGE>
Patent GB-2219549-A (GB)
Title: Compression and isostatic moulding, of different regions of ceramic holloware article.
Inventor: PERRY JOHN REGINALD
IPC: B28B3/00
Filed: 1989-06-07
Abstract: Holloware articles 70 such as cups and mugs are made by introducing dry ceramic power 61 into a space 60 between a rigid, lower die 3 and a surrounding deformable die 5. A second rigid die 4 is lowered to apply pressure of about 400 bar to ceramic material between the two rigid dies, to mould the inside and outside surface of the floor of the article 70. At the same time, hydraulic fluid is supplied to a housing 2 outside the deformable die 5 such that radially directed inward pressure of abut 400 bar is exerted to compact the ceramic material to mould the sidewall of the article. The lower die 3 is then lowered through an aperture 22 in the housing 2 with the compacted article on the die. The compacted article 70 is then fired in a kiln 71. The process avoids difficulties associated with the drying, handling, and dimensional changes, arising from the compression of wet ceramic material. <IMAGE>
Patent GB-2233556-A (GB)
Title: Topical formulations containing zinc oxide
Inventor: DAVIES ELWYN
IPC: A61L15/44
Filed: 1989-07-01
Abstract: The formulation, for use in the treatment of burns in skin and or in underlying tissue, comprises a major proportion by weight of lard, intimately mixed with finely divided particulate zinc oxide and is preferably in the form of a uniform emulsion or cream, in which the zinc oxide is dispersed throughout a matrix of the lard.
Patent GB-2234032-A (GB)
Title: Drive mechanism for converting rotary motion into reciprocating linear motion
IPC: B23D49/16
Filed: 1989-07-11
Abstract: A drive mechanism for a powered hand tool, e.g. an electric saw, for converting rotational motion into reciprocating linear motion comprises a reciprocatable drive shaft (55) coupled to a rotatable drive means (30) by a transfer mechanism incorporating a right angle drive mechanism, the shaft (55) being substantially in line with the drive means (30). In the embodiment shown the transfer mechanism incorporates a gear (35) which is rotatably mounted on a bearing block (40), the reciprocatable shaft (55) being slidably mounted in front and rear bearing assemblies (80, 75) the rear bearing assembly (75) being incorporated into the bearing block (40). In an alternative embodiment (Figs 5 & 6 not shown) the transfer mechanism incorporates a gear (30) which drives a rotatable disc (35) associated with an eccentric cam track (107). A cam follower (111) on one end of the drive shaft (113) engages in the cam track so that rotation of the disc is translated into reciprocating movement of the shaft (113). <IMAGE>
Patent GB-2222460-A (GB)
Title: Battery tester
Inventor: KINCHIN ROBIN
IPC: G01R31/36
Filed: 1989-07-27
Abstract: A battery tester comprises, for connection (11) to a battery (3) to be tested, a series circuit of a resistive load (7) and a semi-conductor chopper (5) of variable mark/space ratio. Sensing means (9) senses the current in the series circuit and a microprocessor (15) maintains the sensed current substantially constant for the period of the test. <IMAGE>
Patent GB-2222672-A (GB)
Title: Fire surrounds
Inventor: ELLISON JAMES
IPC: F24B13/00
Filed: 1989-09-05
Abstract: A fire surround construction has sides formed with ledges (26) for a cross-piece (14), ends of which can extend into the sides as necessary for the width of fire surround being formed. Each of the pair of sides has a front panel (22), an outer return panel (24) and an inner return panel (26), the inner return panel being of lesser depth and height than the outer return panel to accommodate a back panel (18) between the outer return panels and to carry the cross-piece (14), which fits behind the front panels. <IMAGE>