baber/WOPTO huggingface dataset:
Patent GB-2136648-A (GB)
Title: Trigger circuit
Inventor: VERITY PHILIP RONALD
IPC: H03K3/284
Filed: 1983-03-01
Abstract: A monostable trigger circuit comprises transistors (TR2 and TR3) arranged with their collectors and bases interconnected. The collector of the transistor TR2 is connected to the base of transistor TR3 via a capacitor (C2), the main current path of a grounded base transistor (TR1) and resistive means (R2, R3). The collector of transistor TR3 is connected to the base of transistor TR2 via resistive means R6, R7). In the stable state all the transistors are OFF, the capacitor C2 is charged, and the output (13) is LOW. A positive pulse input to the base of TR2 switches it ON, which in turn lowers the voltage at points A and B and so switches TR1 ON so that C2 can discharge via R2 R3, which in turn switches TR3 ON making the output (13) high. Thus all three transistors are latched ON. When C2 has discharged sufficiently TR1 switches OFF, followed by TR3 (making the output 13 low again) and TR2. The components C1 C3 and R4 serve to reduce noise, and the diode D1 is optional. <IMAGE>
Patent GB-2122513-A (GB)
Title: Bearing unit for the conveyor worm of a centrifuge
Inventor: SCHLIEPERSKOTTER BERND
IPC: F16C35/077
Filed: 1983-05-23
Abstract: A bearing unit for mounting the conveyor worm (4) of a centrifuge comprises a bearing (19) having an outer portion (19%) and an inner portion (19_) secured to parts of the centrifuge rotating relative to each other at different rotational speeds and a seal, the bearing (19) and the seal being carried by a displaceable unit (26) which permits axial compensating movements of the conveyor worm (4) relative to the centrifuge drum. <IMAGE>
Patent GB-2127362-A (GB)
Title: Steering compensator apparatus
Inventor: HOWARD DURRELL U
IPC: B62D6/04
Filed: 1983-06-30
Abstract: A steering compensator is disclosed for centering a frame supported steerable member comprising part of the steering means for a vehicle. The compensator includes a centering unit which is connected between the frame and the steering means and comprises a cylinder 50 containing a pair of pistons (42, 44) and an actuator (40) for engaging the pistons in response to movement of the steerable member. A fluid system (92, 96) provides fluid resistance to off-center piston movement and fluid force for return piston movement and includes means for independently varying both the resistance and the return force. The compensator may include trimming means (16, 130) for remotely varying the center position of the steerable member and means for controlling the rate of both turning and return movements. Optional valve means (122, 124, 126, 128) provide for deactivating the compensator manually or in response to power steering system failure, overpressurization, or vehicle speed. <IMAGE>
Patent GB-2146848-A (GB)
Title: EHT voltage terminal
Inventor: WEST GEOFFREY
IPC: H01B17/42
Filed: 1983-09-13
Abstract: An EHT voltage terminal which serves to minimise the risk of corona discharge comprising a central conductive core (8) from which a plurality of conductive projections (9) are arranged to extend radially, the core being adapted (not shown) to facilitate the provision of a junction between a number of conductors to be electrically interconnected and being covered with a region of insulation (10) which is arranged to cover the projections (9), and at least part of the core (8). <IMAGE>
Patent GB-2154146-A (GB)
Title: Ball game simulation apparatus
Inventor: ESSEX ADRIAN JAMES LUDLOW
IPC: A63B69/36
Filed: 1983-10-14
Abstract: The apparatus for simulating a a game, e.g. golf, comprises a screen 18, on which an image from a picture store is displayed, measuring devices in planes 14 and 15 coupled to a computer control unit 16 to determine the trajectory of a ball when hit, and means to display a moving ball image on the screen corresponding to the calculated trajectory. A video tape or disc may store information and images of a golf course and provide a view to the green from each new ball position together with information on distance to the hole. <IMAGE>
Patent GB-2135675-A (GB)
Title: Making spread elastomeric foam by the no-gel method
Inventor: MACARTHUR MALCOLM ALEXANDER
IPC: C08J9/30
Filed: 1984-02-15
Abstract: A spread foam is made by the no-gel method. In the process, a conventional no-gel foam latex composition, comprising the latex of an elastomeric polymer, is frothed and a thickener latex is added and mixed with the latex composition at the time of frothing; the thickened composition is then spread, for example, on a textile substrate, carpet back or as an unsupported foam, dried and, if desired, cross-linked. The injection of the thickener latex enables a high density foam of good quality to be produced from compositions which could otherwise only produce foams of low and medium densities.
Patent GB-2161067-A (GB)
Title: Paint roller cleaning device
Inventor: DAWSON GORDON BERTRAM
IPC: B44D3/00
Filed: 1984-05-01
Abstract: A device (10) for cleaning a paint roller comprises a cylindrical body (12) adapted to fit over the roller, an inlet (11) for fluid to enter the body and an outlet (14) for fluid to leave the body, the shape of the body being such that, in use, fluid passing from inlet to outlet is directed to flow over the paint roller. The handle support (19) of the roller may be located in a slot (13) in the body.   <IMAGE>
Patent GB-2163058-A (GB)
Title: Darts
Inventor: MURRAY STANLEY
IPC: F42B6/00
Filed: 1984-07-26
Abstract: The barrel of a dart is fabricated so that its centre of gravity is located at or slightly rearwards of the mid-point along the length of the barrel structure. The cross-section of the barrel may increase from front to rear. <IMAGE>
Patent GB-2145815-A (GB)
Title: Method for performing and tracing enzymatic reactions and a device for carrying out the method
Inventor: CERKASOV JIRI
IPC: C12P1/00
Filed: 1984-07-27
Abstract: Enzymatic material is immobilized on the surface of an exchangeable stirrer, e.g. magnetic or mechanical, or on the surface of another easily removable immovable part installed in the reactor either directly or by means of a cloth fixed in a suitable way on to the stirrer or on to the easily removable object in an amount sufficient to keep the concentration of the determined substance on the surface of the enzymatic layer on a value equal or close to zero, in course of many measurements.
Patent GB-2147285-A (GB)
Title: Production of manganese dioxide
Inventor: MELLORS GEOFFREY WHARTON
IPC: C01G45/02
Filed: 1984-09-28
Abstract: A process for the production of manganese dioxide comprises:-   (a) intimately contacting at least one manganous salt with at least one compound selected from alkali metal permanganates and ammonium permanganate; (b) heating the intimately contacted manganous salt/permanganate material produced in step (a) to between 120 DEG C and 180 DEG C in an oxygen-containing atmosphere until a substantially complete conversion of the manganous salt into a material comprising manganese dioxide has occurred; and (c) heating the material produced in step (b) in an oxygen-containing atmosphere at between 210 DEG C and 300 DEG C until at least 85% of the manganese present as oxide is present as MnO2 having a surface area of no greater than 15 m<2>/gm and an X-ray diffraction pattern indicating relative intensities, when compared with crystalline beta manganese dioxide of no greater than 30% at d value 3.12  ANGSTROM , no greater than 80% at d value 2.41  ANGSTROM , no greater than 65% at d value at 1.63  ANGSTROM  and no greater than 65% at d value 1.31  ANGSTROM . c
Patent GB-2150610-A (GB)
Title: Lintel
Inventor: WILLIAMS IEUAN
IPC: E04C3/02
Filed: 1984-11-29
Abstract: A lintel has two leaves 10, 12 which are connected at the top, an upper portion 26 of one being gripped by a bent-over upper portion 28 of the other. These upper portions have coinciding spaced projections 30, 32, preferably wedge-shaped. Thus separate leaves 10, 12 can be held so that the projections 30, 32 do not coincide, and their upper portions 26, 28 can then be easily engaged. One leaf is then displaced longitudinally so that the projections engage (and wedge). A resilient plastics U-strip 42 on the inserted portion 26 provides a thermal break and enhanced wedging. <IMAGE>
Patent GB-2159840-A (GB)
Title: Method and circular knitting machine for making decorative patterns
Inventor: GARIBOLDI FRANCO
IPC: D04B15/78
Filed: 1985-03-25
Abstract: In the manufacture of knitted hosiery with incorporated patterns using an alternating movement circular hosiery knitting machine with several yarn feeds the needles which must come into contact with one or other of the adjacent opposing feeds 1A,2A are selected by means of a single unit 52-58, placed between the adjacent feeds, for selection of the needles in an alternate fashion and with the same frequency as the reversals in the movement of the cylinder; the desired selection conditions are thus imposed on the needles when they come into contact with the set of stitch-drawing cams which is downstream of the needle selection zone for the direction of movement at that instant. <IMAGE>
Patent GB-2174731-A (GB)
Title: Extinguishing or preventing optical brightening
Inventor: WEIBLE KARL-HEINZ
IPC: D06L4/686
Filed: 1986-05-06
Abstract: In a process for extinguishing the optical brightening effect produced on a substrate by an optical brightening agent or preventing optical brightening effects from being produced on a substrate by an optical brightening agent, the substrate is brought into contact with an UV-absorber which is subsequently fixed on the substrate, both steps being effected either before or after the treatment of the substrate with the optical brightening agent. The UV-absorber may be applied to the substrate before, during or after dying or printing the substrate.
Patent GB-2195553-A (GB)
Title: Mixers
Inventor: ELLWOOD HENRY
IPC: B29B7/18
Filed: 1986-10-01
Abstract: In a Banbury-type mixer for plastics and rubber material, each rotor of a pair of overlapping, geared together, rotors (18, 20) has a blade of left hand helical form and a blade of right handle helical form, each blade starting from one end face of the rotor and terminating short of the other end face. The rotors are arranged to be driven in opposite directions at equal speeds, whereby material is always directed by the rotors away from their end faces. The upper surface of a drop door (36) may have a cus-like configuration (61). <IMAGE>
Patent GB-2184201-A (GB)
Title: Axial retaining member
Inventor: GEHRKE GLENN FRED
IPC: F16D3/224
Filed: 1986-12-01
Abstract: Axial retaining member (112) preferably a unitary thermoplastics moulding, for locking e.g. a splined shaft (118) into a splined bore of a female member (114) such as an inner race of a constant velocity universal joint, has a cylindrical body (144) and, at one end, an inwardly projecting flange (148) locating in a channel in the shaft, and, at the other end, an outwardly projecting flange (158) locating in a channel in the bore of the female member. The body (144) has a longitudinally extending region of reduced radial thickness to enable the retaining member (112) to open during assembly over the shaft (118). <IMAGE>
Patent GB-2202598-A (GB)
Title: Extruded hose end fitting
Inventor: BISHOP DAVID
IPC: F16L33/20
Filed: 1987-03-24
Abstract: A hose end fitting (1) comprising a cylindrical tube (2) and a ferrule (4) extending from an annular flange (3) to co-axially overlie part (5) of the tube. Both tube parts, the ferrule and the flange are formed as a single extrusion using an impact extrusion into three moulding cavities. <IMAGE>
Patent GB-2204663-A (GB)
Title: Liquid operated valves
Inventor: HILL ERIC RONALD
IPC: F16K21/16
Filed: 1987-05-15
Abstract: A liquid-operated valve in which a closure member (9) is mounted for movement under gravity between an upper open position and a lower closed position. A first vessel (20) can contain liquid, is mounted for vertical movement, and is connected to the closure member so that as the vessel descends the closure member rises, and visa versa. A second vessel (21) for liquid is also provided, and a pump (24) and pipe (26) operable to pump liquid from the second vessel into the first. When the pump operates thus, the first vessel fills with liquid, and descends and opens the valve by lifting the closure member. As the pump continues to work, liquid leaves the first vessel by an overflow (28) and returns to the second vessel. When the pump stops, liquid returns to the second vessel by reverse flow through the pipe and pump, the first vessel rises and the valve is re-shut by the closure member (9). Operation of the pump may be controlled by a timer (33) and/or by a liquid sensor (40). The mechanism finds particular use as the outlet valve of a sludge discharge conduit (6) in a sewage treatment works, operable periodically to open so as to permit the discharge of thick settled sludge that has accumulated within the conduit, and then to close again once all such sludge has been discharged. By using a liquid sensor (such as 40) the timing of the closure of the valve may be related directly to the consistency of the sludge leaving the outlet. <IMAGE>
Patent GB-2210185-A (GB)
Title: A chart
Inventor: CARRUTHERS JOHN HARDIE
IPC: G06G1/00
Filed: 1987-09-02
Abstract: A chart comprising a nomogram (24) for providing the value of the flow coefficient of a valve from given values of head loss and flow rate, and a graph (20), juxtaposed to the nomogram, in which the values of differential signals for valves of different orifice sizes are plotted against flow rate, the flow rate scales of the nomogram and the graph being common. <IMAGE>
Patent GB-2208795-A (GB)
Title: Faucet spout with discharge lift rod
Inventor: KNAPP ALFONS
IPC: E03C1/04
Filed: 1987-09-18
Abstract: A faucet spout (30) is provided with a mounting device for its installation into a hole (2) of a sink. The faucet spout has in a base section (13) with two supply fittings (10, 12) connected to two separated and parallel supply passages (17, 18) that pass longitudinally in the base section. The base section is mounted to pass through the sink hole. The base section also has an oblique hole (19) slideably receiving a lift rod (21) with a knob (23). The hole (19) is made obliquely in the lower end of the spout and passes between the supply passages (17, 18) without intersecting them. The two supply passages are threaded in their lower portions so as to receive the fittings (10, 12) of two flexible pipes (9, 11) for connection with the faucets. Preferably, the spout is formed from two parts; the base section (13) being mechanically worked from a bar stock and the upper section being produced from a metal pipe.
Patent GB-2211253-A (GB)
Title: Ventilated brake disc
Inventor: CAMPBELL ADRIAN DAVID
IPC: F16D65/12
Filed: 1987-10-16
Abstract: A ventilated brake disc, for example for use on a vehicle, comprises first and second braking surface plates (1 and 2 respectively) which are substantially annular and are spaced apart axially. The first and second braking surface plates incorporate respective first and second radially extending braking surfaces (5 and 6) against which, in use, brake pads are urged. For connecting the brake disc to a wheel hub, generally triangular portions (12) of a disc mounting element (7) extend radially between the first and second braking surface plates and are connected at their apices (12a) with each of the first and second braking surface plates (1, 2) by transverse elements (13) intermediate the radially inner and the radially outer extent of the first and second braking surfaces (5, 6). <IMAGE>
Patent GB-2198458-A (GB)
Title: Starting and shutting down a friction spinning machine
Inventor: WOOD ALFRED
IPC: D01H4/46
Filed: 1987-11-26
Abstract: The spinning units of a multi-position friction spinning machine are driven by a common AC drive motor powered by a static inverter enabling the power supply frequency to the AC motor to be controlled for controlling the rate of acceleration and the operating speed and the rate of deceleration of the AC drive motor. All of the machine elements may be driven from a single motor so that the relative speeds are maintained in the required proportions. The arrangement enables an identical acceleration and deceleration programme to be followed each time the machine is started up or shut down. In a modification some of the elements e.g. the sliver feed rollers may be driven from a separate AC, frequency controlled motor. <IMAGE>
Patent GB-2217454-A (GB)
Title: Position measurement system
Inventor: PERRY JOHN
IPC: G01C15/00
Filed: 1988-01-18
Abstract: A position measurement system comprises an angle measuring apparatus (11) which can operate unattended, and an attended target device (10) mounted on a support (22). The target device has a sight (20) for locating the apparatus and means for approximately measuring the angle (A) between the direction (S) of the apparatus and a reference direction (G). The angle is transmitted by a data link to the angle measuring apparatus, and used to appropriately angle an alignment device (12) on the apparatus which is then rotated to locate the target (19) within the field of view of the alignment device. The angle measuring apparatus then makes an accurate measurement of the position of the device, and the results of the measurement may be transmitted by a data link to the target device for use by the operator, or be otherwise logged.
Patent GB-2207102-A (GB)
Title: Trailer foot assembly
Inventor: RICKWOOD GERALD CHARLES
IPC: B60S9/02
Filed: 1988-07-14
Abstract: A foot assembly (20, 40, 50), suitable for use in supporting the front end of an unhitched trailer (10) of an articulated vehicle comprises an upper member (22) on a support leg (16) of the trailer, and a lower member (24) which, during use for supporting the trailer, remains in substantially stationary contact with the ground and supports the upper member (22) and hence the trailer; the construction and arrangement being such that the lower member (24) is held captive in relation to the upper member (22) such as by springs (36) and/or links (26), yet relative longitudinal movement is permitted between the upper and lower members, to accommodate longitudinal movement of the unhitched trailer due to loss of pressurised fluid from its suspension and/or due to loading thereof. <IMAGE>
Patent GB-2224004-A (GB)
Title: Pad extension mechanisms for gripper
Inventor: PRICE GLYN
IPC: B65F3/02
Filed: 1988-10-22
Abstract: A pair of mechanisms A and B are controlled by respective rams 12 which act to extend lever arms comprising sections 3 and 4 from the condition of mechanism B to that of mechanism A and vice versa. The positioning of the pivotal supports 5 and 6 for the arm sections 3 and 4, the pivotal supports 5 and 13 for the ram 12 and the pivotal supports 8 and 9 for a tie bar 7 are such that gripper pads at the end of each arm are caused to travel along the path 15, 16 (illustrated for mechanism B) so that at the end of travel the gripper pads 2 are moved towards each other to grip a bin, e.g. for inversion into a refuse vehicle. When retracted the mechanisms A and B are neatly stowed generally within the confines of a support frame 1. <IMAGE>
Patent GB-2212785-A (GB)
Title: A cardboard box
Inventor: UEDA KENSAKU
IPC: B65D5/32
Filed: 1988-11-22
Abstract: A cardboard box 20 has an upper portion 21 comprising a top 22 and two end walls 23, and a lower portion 24 comprising a bottom 25 and two side walls 26, the bottom 25 and side walls 26 having couplers 27 which are secured to the end walls 23 to complete the box after the contents have been placed therein. Perforated parting lines 29, 31 are provided in the top 22 and along the edges between the side and end walls 23, 26 and enable the box to be opened out flat for easy removal of the contents and subsequent disposal. <IMAGE>
Patent GB-2226127-A (GB)
Title: Optical frequency monitor
Inventor: KING JONATHAN PAUL
IPC: H04B10/69
Filed: 1988-12-16
Abstract: An optical frequency monitoring arrangement including high-pass and low-pass optical filter means (21, 22), means for feeding (20) an optical signal to both filter means and means for determining the ratio of the transmitted optical powers through the filters. The arrangement may be used in a feedback loop to provide frequency control of a laser light source in an optical communication system, Fig. 5 (not shown). <IMAGE>
Patent GB-2235145-A (GB)
Title: Metal matrix composite materials
Inventor: LEE PETER RAYMOND
IPC: F42B12/74
Filed: 1988-12-23
Abstract: A metal matrix composite material comprises a continuous matrix phase formed of a DU-rich or tungsten-rich metallic material in which a multiplicity of fibres, wires, particles or whiskers of a reinforcing phase are disposed substantially uniformly or heterogeneously and selectively throughout the matrix phase.
Patent GB-2217283-A (GB)
Title: Device for extracting and feeding piece-type articles from bulk stock
Inventor: GRADOBOEV VLADIMIR TIMOFEEVICH
IPC: B23P19/00
Filed: 1989-01-23
Abstract: A device for extracting and feeding piece-type articles from bulk stock comprises a means for extracting the piece-type articles (3) contained in a bunker (2) in bulk, which consists of a gripping screw (2) and a transporting screw (5), along which elements are arranged so as to form ''pockets'' for keeping the articles in a desired position during their transportation. The device further comprises a means for preliminary orientation of the articles extracted from the bulk stock, which consists of at least one orienting element projecting beyond the external diameter of the gripping screw (4).
Patent GB-2227527-A (GB)
Title: A variable stator vane arrangement for an axial flow compressor
Inventor: FARRAR PETER GORDON GRAHAM
IPC: F01D17/16
Filed: 1989-01-25
Abstract: A plurality of stages of variable stator vanes are operated by respective control rings 34, 36, 38, 40, 42. The vanes in each stage are connected to the control rings 34, 36, 38, 40, 42 by operating levers 44, 46, 48, 50, 52. 
<??>An axially extending member 64 is connected to each control ring 34, 36, 38, 40, 42 by operating links 54, 56, 58, 60, 62. The member 64 is arranged in a plane substantially tangential to each control ring and is movable in the plane substantially tangential to the control rings to change the pitch of the variable stator vanes. 
<??>Hydraulic rams 66, 68, ball screw actuators or electric stepper motors are provided to move the member 64, and the actuators may be operated to give proportional, or non proportional movement of the variable stator vanes. A controller 94 may use signals from position detectors 78, 80 positioned on the control rings or position detectors 86, 88 positioned on the hydraulic rams together with compressor parameters to control the positions of the vanes. The member 64 may be inclined to axial direction (Fig. 3), formed with steps (Fig. 4) or curved (Fig. 5) 
<IMAGE>
Patent GB-2219123-A (GB)
Title: Homogeneous magnetic head cleaning tape
Inventor: SIDDIQ MOHAMMED
IPC: G11B5/41
Filed: 1989-03-28
Abstract: A magnetic head cleaner (2) (42) (Fig 5) includes a strip of homogeneous (non-layered, non-fabric) plastic material having one or both of the following cleaning attributes: a matte finish 8 with a particular surface roughness (about 0.1 mu m to about 1.0 mu m) and a series of transverse and longitudinal grooves (12, 14) of a chosen size (dimensions are specified). The surface roughness and groove sizes are chosen to remove contaminants and hold same on the cleaning surface. The cleaner can be used wet or dry. The longitudinal grooves primarily distribute the liquid cleaner. Transverse groove geometries are featured (Fig 4). The "strip" may be incorporated in a floppy disc cleaner (Fig 5). Abrasiveness may be increased by chemically removing the polymer from the surface of incorporated particles or by incorporating hard large particles from which the polymer tends to rub off. Carbon may be applied to the back surface for VCR use. <IMAGE>