baber/WOPTO huggingface dataset:
Patent GB-2233687-A (GB)
Title: Casing head connector
Inventor: ANDERSON ALFRED LEWIS
IPC: F16L15/04
Filed: 1990-05-14
Abstract: A pipe or casing head connector includes a main body 23 having a stepped bore 29 in one end for telescopic insertion over the end of a pipe, creating a stepped annular area around the pipe. A slip retaining nut 45 is threaded into the end of the main body around the pipe, closing off the stepped annular area. Slips 61 are carried in a tapered annular space between the nut and pipe. Prior to actuation, the slips are held up in disengaged position by shear pins 67. A pair of metal seal rings 75, 77 is disposed in the end of the stepped annular area opposite the nut. A pair of dual-acting, hydraulically actuated pistons 105, 107 is disposed in the stepped annular area between the metal seal rings and slips. Hydraulic pressure actuates the upper piston 105 to move upwardly to energize the metal seals, and the lower piston 107 to move downwardly to actuate the slips into gripping engagement with the pipe. Floating, self-centering lock ring segments 161 are wedged between the pistons by lockdown screws 185 to prevent the pistons from backing out of energizing engagement with the metal seal rings and slips. The connector may be released by backing out the lockdown screws which retracts the lock ring segments, unscrewing the slip retaining nut and removing it and the slips, pulling out the lower and upper pistons, and sliding the main body off the pipe. The metal seals may then be replaced along with the elastomer seals or slips, as needed. <IMAGE>
Patent GB-2231301-A (GB)
Title: Cutter head for cutting sheet material
Inventor: GERBER HEINZ JOSEPH
IPC: B26F1/38
Filed: 1990-06-04
Abstract: A cutter head for cutting spread sheet material comprises a knife 62, supported for reciprocation along a vertical axis 59, on a base frame 46 which is mounted on a tool carriage 22 for vertical movement between a cutting and a non-cutting position. A sharpener arm 148 is mounted on the tool carriage for movement about a vertical axis 152 to bring a rotatable sharpener wheel 156 on the arm into and out of sharpening engagement with the knife when the base frame is in non- cutting position. The wheel which is slightly conical, is rotated by a motor-driven belt 164 and the arm is pivoted to sharpening position by a solenoid 170 against the action of a spring (166, Fig 8). The knife is rotated about the axis 59 to variable sharpening positions. Sharpening may be applied in alternate cycles to opposite faces (126, 128 Fig 12) of the blade or to only one face (126, Fig). <IMAGE>
Patent GB-2245802-A (GB)
Title: State sensing apparatus for connection to a multi-line parallel bus
Inventor: MCCALLUM LACHLAN
IPC: H04L12/26
Filed: 1990-06-25
Abstract: To enable location of sources of errors occurring during attempted communication between any pair of transceivers which can communicate through a multi-line parallel bus 11 a state sensing apparatus 10 samples the states of address, transceiver identity code, and control signals on the bus 11. A sampling pulse generator 17 supplies streams of sampling pulses for this purpose to an address sampler and display unit 12, a control signals sampler and display unit 13. and an identity code sampler and display unit 14. An error signal sensing and display, and inhibit signal generating circuit unit 15 senses error condition signals transmitted through the bus 11, and if any of these signals indicates an error condition, generates an inhibit signal which is supplied to the sampling pulse generator unit 17 where it stops the output of sampling pulses. The units 12, 13 and 14 hold and display the respective signal states present at the end of the last sampling pulse. <IMAGE>
Patent GB-2233566-A (GB)
Title: A golf club with improved impact property
Inventor: SATO MASANORI
IPC: A63B102/32
Filed: 1990-07-13
Abstract: A golf club (10) comprising a head (12) having a neck portion (20), a shaft (14) having a distal end portion 14a attached (exteriorly or interiorly) to the neck portion 20, and a neck neighboring portion extending above the neck portion 20 at which the shaft is dynamically bent due to an impact of the head with a golf ball during a swing of the golf club. A member (24) is provided in the shaft (14) for increasing a response to the impact. For example, material having a high elastic modulus (e.g. fibre reinforced plastic, a whisker, amorphous material, intermetallic compound, ceramics or metal) under impact is inserted or a section modulus of the shaft is rearranged in the bendable portion. Accordingly, a lower portion of the shaft is initially bent backward relative to the remaining portion of the shaft and then is moved rapidly forward to cause the head to advance while in contact with the golf ball. The member may have holes through which wires of relatively high elastic modulus may be inserted to serve the same purpose. The shape of wires may be different along their lengths (Figure 10). The shaft end portion may have a varying wall thickness or have at least a part thereof treated with shot peening or have a flared part fitting over neck portion 20. <IMAGE>
Patent GB-2234355-A (GB)
Title: Swept frequency signal analyser
Inventor: POWELL GEORGE LEONARD
IPC: G01R23/173
Filed: 1990-07-24
Abstract: Swept frequency signal analysing apparatus for displaying signals received by radio frequency receiver chain (12,14, 16,...) as a function of frequency produces a swept frequency display by feeding to a mixer (16) in the receiver chain a local oscillator signal which is derived both from a digital frequency synthesiser in a periodically open and closed phase locked loop (66) and from an analogue ramp generator (44). The local oscillator signal is generated by a voltage controlled oscilator (VCO) (58) which is periodically coupled in the synthesiser loop and at other times receives a stored voltage corresponding to the voltage fed to the VCO when the loop was last locked. Superimposed upon the stored voltage is a ramp signal for causing the oscillator frequency to execute repeatedly a frequency sweep. The apparatus also includes circuitry (128, 132) for generating a cursor deflection in the display during the flyback period pf the display, the circuitry including an arrangement for moving the cursor deflection when a display shift control is operated. <IMAGE>
Patent GB-2246924-A (GB)
Title: Non-linear processing of digital signals
Inventor: HURLEY TERRY RALPH
IPC: H04N9/69
Filed: 1990-08-08
Abstract: A digital signal is non-linearly processed without generation of alias components by modelling the required non-linear operation by the best available quadratic function. A transformation circuit 14 for implementing the quadratic function ax<2> + bx may be used. As a result, only the second harmonic of each original frequency component of the digital signal is generated. Space for accommodating the original frequency components and the second harmonics can be made either by sampling frequency up-conversion in an interpolation up-converting circuit 11 which doubles the sampling frequency, or by bandlimiting the original digital signal to a quarter of the original sampling frequency. In either case, the second harmonics occur below the Nyquist limit and no alias components are generated. A video signal colour corrector makes use of the first technique for the chrominance signals and the second technique for the luminance. Different quadratic functions may be used in different regions of the desired non-linear input/output amplitude characteristic for a better approximation. <IMAGE>
Patent GB-2235299-A (GB)
Title: Combustion chamber pressure 10 sensor
Inventor: SELLNAU MARK C
IPC: G01L23/10
Filed: 1990-08-13
Abstract: An annular sensor (36) that in an internal combustion engine (10) is measures combustion chamber pressure located in an engine component opening, such as a spark plug well (30), and is engaged with first (32) and second (31) annular walls that define the side of the opening. The first wall is located near the combustion chamber (19) and flexes in response to varying combustion chamber pressure. The second wall is located away from the combustion chamber and remains relatively rigid. Movement of the first wall relative to the second wall due to varying combustion chamber pressure transmits a load to the sensor. The sensor generates an output signal that corresponds to that load which may subsequently be used to control engine functions. As shown a piezoelectric sensor element (40) is held between a shoulder (33) machined in the well (30) and a threaded bush (37) which forms part of the sensor assembly and has a slot (45) and recess (59) holding output leads and a connector. <IMAGE>
Patent GB-2236976-A (GB)
Title: Manipulator Gaiter System
Inventor: COLE GEOFFREY VICTOR
IPC: G21F7/06
Filed: 1990-09-07
Abstract: A manipulator (10) comprising a throughtube (16) and a slave arm (18) is provided with a retainer ring (35) (figure 2, not shown) to retain a gaiter (30) enclosing the slave arm (18) while the manipulator (10) is installed in a through-wall liner (12) in a wall (14) of a cell. The manipulator (10) also incorporates a cam (60) and spring-loaded pin (52) (figure 3, not shown) arranged to push the toggle (50) of the gaiter ring into its expanded position, clamped to the liner (12). The cam (60) is operated by bending the slave arm (18) relative to the throughtube (16). Since the gaiter is fitted over the slave arm before installation of the slave arm in the liner, the gaiter is less likely to be damaged or to be knocked out of the liner during installation. <IMAGE>
Patent GB-2238053-A (GB)
Title: Inhibiting protein which controls milk secretion
Inventor: ADDEY CAROLINE VICTORIA PAULIN
IPC: C07K16/00
Filed: 1990-11-13
Abstract: A protein which inhibits milk secretion by lactating goats and has a molecular weight, as determined by gel filtration chromatography of about 7.6 KDa and a N-terminal amino acid sequence (I), where Xaa are unknown amino acids; and which is found in glycosylated form in goat's milk.
Patent GB-2240678-A (GB)
Title: RDS preset receiver
Inventor: KASA KOICHI
IPC: H04B1/16
Filed: 1991-01-25
Abstract: An RDS preset receiver has a memory 14 for storing data of RDS broadcast stations. When an RDS broadcast signal is received during a sweep selection operation, the program identification data of the received station and the stored program identifications of the preset stations are compared. If the received RDS station is one of the preset stations, the channel number is displayed on a display 18. With this feature, data relating to the same preset station can be prevented from being stored in the memory twice. <IMAGE>
Patent GB-2243646-A (GB)
Title: Door handle return mechanism
Inventor: DEARDEN NEVILLE
IPC: E05B3/06
Filed: 1991-05-03
Abstract: The mechanism comprises a housing formed by two plate-like members 2, 3 secured together, having co-axial central openings 4, 5, a rotatable member 6 located between the plate-like members 2, 3, and having a boss 7 to each side to extend into respective centre openings 4, 5 in the plate-like members, two diametrically opposed grooves 8, 9 on the inner face of each plate-like member co-operating to form channels and two springs 12, 13, one located in each channel, and extending in opposite directions from attachment points to opposite sides of the rotatable member to anchor points at the ends of the channels. Each plate-like member is provided at its outer periphery with notches to enable the mechanism to locate behind a wide variety of cover plates. <IMAGE>
Patent GB-2258885-A (GB)
Title: Stay arm assemblies.
Inventor: RANKIN BRIAN
IPC: E05C17/22
Filed: 1991-05-03
Abstract: A stay assembly for a door or window comprises a restraining ring 2 having a central passage through which a stay arm 1 passes. The stay arm is locked into the restraining means 2 by means of a locking plate 5 which is slidable in the restraining means into a locked position in which the stay arm is not releasable from the restraining ring, and an unlocked position in which the stay arm is releasable from the restraining ring. <IMAGE>
Patent GB-2248270-A (GB)
Title: Exhaust turbocharged i.c. engine charge pressure control
Inventor: HANSEN KLAUS
IPC: F02B37/18
Filed: 1991-09-11
Abstract: The vacuum actuators 9 and 11 of the turbine by-pass valve 8 and the throttle valve 10 arc supplied from a common vacuum controller 15 fed by a vacuum pump 16. A valve 17 or respective valves (28, 29, Figs. 3 and 4) control the application of the controller vacuum which may be to one or the other actuator with the remaining actuator vented or to both actuators during transition. The controller vacuum is set dependent on engine speed, coolant temperature, charge pressure and fuel injection pump charge quantity. <IMAGE>
Patent GB-2250636-A (GB)
Title: Identifying switches and other articles in the dark
Inventor: WHITEHOUSE DAVID
IPC: H01H9/18
Filed: 1991-10-31
Abstract: An article such as the movable member (15) of a light switch comprises a material which glows in the dark. The movable member (15) which operates the switch is thus made apparent in a darkened room and can easily be located and operated. Alternatively, the article to be identified may comprise a number or name of a building, a door handle, a display sign, a telephone, a lock or a seat belt. <IMAGE>
Patent GB-2264076-A (GB)
Title: Valve seat lapping device
Inventor: FLETCHER GEORGE TERENCE
IPC: B24B15/03
Filed: 1992-02-12
Abstract: A valve seat lapping device for lapping the seats of steam valves or the like a pair of lapping discs 37 movable in an orbital path by a pair of arms 47, on a shaft 34, which engage the inner face of a peripheral rim on the inner face of the discs. The shaft is journalled on the lower ends of a pair of vertical legs 29, 30 which depend from a cross-head 21 mounted on the valve body when the valve bonnet is removed, the shaft being driven by a belt-and-pulley arrangement 28, 35, 36 from a driving shaft 25 on the cross-head. <IMAGE>
Patent GB-2254523-A (GB)
Title: Mixed-mode transceiver system
Inventor: METROKA MICHAEL P
IPC: H04W8/20
Filed: 1992-02-11
Abstract: A radiotelephone system is comprised of a fixed site (120, Fig. 1) and a radiotelephone-pair (420) suitably intercoupled (436, 440, 444) theretogether to permit transfer of data, such as number assignment module (NAM) information, therebetween. A first (426 or 432) of the radiotelephone-pair comprises a radiotelephone of conventional construction using conventional band width. A second radiotelephone (432 or 426) of the radiotelephone-pair comprises a radiotelephone having circuitry to transmit more efficiently an information signal upon a cellular, communication system of increased capacity. The data sequence contained in a first radiotelephone of the pair is transferred to a second radiotelephone of the pair to permit a communication link to be formed between the second radiotelephone and a cellular, communication network. Thus a portable (426) may be used independently at off-peak-times, and intercoupled with a mobile (432) at peak times to make use of increased capacity but using the same NAM information as the portable. Only one NAM is thus required giving increased capacity at minimal cost. <IMAGE>
Patent GB-2264797-A (GB)
Title: Compiling a parts list.
Inventor: CURNOW RAYMOND CHARLES
IPC: G06Q40/00
Filed: 1992-03-07
Abstract: Compiling a parts list by selecting from a plurality of optional components arranged in groups, each group comprising a plurality of related components of which any number from a predetermined minimum to a predetermined maximum may be selected, the availability for selection of at least some of the components being dependent on those components already selected. The method may also be used to compile a list of clauses for inclusion in eg. an insurance contract. <IMAGE>
Patent GB-2254822-A (GB)
Title: Pellet forming apparatus
Inventor: HARRIS MICHAEL
IPC: B29B9/10
Filed: 1992-03-27
Abstract: A method of forming pellets of material by causing the material to flow in molten condition through perforations. So that the method can be used for producing pellets of pitch and other bituminous and resinous substances, it includes the steps of feeding the molten material into a rotating dish with perforated side walls and controlling the temperature of the material and/or the speed of rotation of the dish. <IMAGE>
Patent GB-2255817-A (GB)
Title: Thermostatic valve
Inventor: GRAHAM PATRICK GERARD
IPC: G05D23/275
Filed: 1992-05-12
Abstract: A hot water valve for a hot water radiator includes anaeroid bellows (6) for controlling the valve in response to the ambient air temperature, and a resistive heating element (10) for heating the bellows sufficiently to close the valve irrespective of the ambient air temperature.
Patent GB-2267352-A (GB)
Title: Pressure testing gas-lift wells
Inventor: ESPINOZA JOSE A
IPC: E21B47/10
Filed: 1992-05-15
Abstract: A method for testing physical integrity of production tubing (20) and production casing (16) in a gas-lift well includes the steps disposing a sealing tool (48) in the production tubing to obtain a seal at a desired location; applying a predetermined test pressure to the interior space of the production tubing; monitoring the test pressure applied for a pressure drop; and monitoring flow from the inner annular space. The physical integrity of the production casing is then tested applying pressure to the inner annular space (22); and monitoring the test pressure for a pressure drop. The sealing tool comprises a spherical member which seals against a contraction in the tubing (20). <IMAGE>
Patent GB-2267894-A (GB)
Title: A potato box
Inventor: HOLMES PETER JOHN
IPC: B65D6/36
Filed: 1992-06-02
Abstract: A box or crate e.g. for potatoes comprises four corner-posts (2) and a plurality of planks (1) which are secured between adjacent pairs of the corner posts (2) to define the sides of the box. A nail plate is secured to each and every one of the planks defining at least one side of the box. The nail plate may be covered by a wooden post (7) when secured internally of the box. <IMAGE>
Patent GB-2268337-A (GB)
Title: Electrical machine slot wedging system
Inventor: BEEDHAM EDGAR
IPC: H02K3/487
Filed: 1992-07-01
Abstract: An electrical machine slot wedging system wherein a conductor (11) is held in place in a slot (2) of the machine by wedge means (1, 3) and a resilient means, e.g. a ripple spring (5), sandwiched between the wedge means and the conductor. The wedge means may comprise two co-operating wedges (1, 3) which taper in opposite directions along the length of the slot. A plurality of separate wedge means axially aligned along the length of the slot may be used. To allow the force exerted by the resilient means to be determined the wedge means may be retained in the slot by means which permit the wedge means to be urged further into the slot against the force exerted by the resilient means. An aperture (15) may be provided in the outer wedge (1) to allow insertion of a tool to push the lower wedge further under the outer wedge. (Figure 2) <IMAGE>
Patent GB-2259072-A (GB)
Title: Unit for packing packets of cigarettes in groups
Inventor: BORIANI SILVANO
IPC: B65B11/58
Filed: 1992-08-07
Abstract: A unit (1) for packing packets of cigarettes in groups (3) comprises conveying devices (25, 37, 44, 45, 57, 60) for successively feeding the groups (3) along a given path (18) extending through a cartoning device (5) and a wrapping device (12) arranged in series along the path (18); an intermediate portion (8) connecting the cartoning device (5) to the wrapping device (12) having an output portion (42) for unloading the groups (3) after they have passed through the cartoning device (5) only. The output portion (42) is parallel to the output portion (17) downstream of the wrapping device (12). The intermediate portion (8) is also provided with an input portion (35) whereby groups (3) may be input without passing through the cartoning device (5). <IMAGE>
Patent GB-2270271-A (GB)
Title: Pulsed adhesive applicator
Inventor: HOLT PAUL
IPC: B05C11/10
Filed: 1992-08-18
Abstract: A method of adhesive application is provided which comprises supplying pressurised fluid in pulses to an adhesive applicator 7 so as to provide a pulsed adhesive output from the applicator. Apparatus for carrying out the method by means of a fluidic a stable circuit 11 is described. The invention may for example be used to bond materials together in the assembly of cardboard boxes, and aims to give strength properties close to or equivalent to those achievable with a continuous glue line but using substantially less glue. <IMAGE>
Patent GB-2257798-A (GB)
Title: Method and device for surveying an area
Inventor: JONES IVOR JOSEPH
IPC: G01B5/004
Filed: 1992-09-08
Abstract: A mechanical device (50) for surveying an area (2) and for subsequently replicating the surveyed area (2) comprises a base structure (53) and means (54) for taking a plurality of polar co-ordinate measurements relative to a central datum point (59) on the base structure (53). The base structure (53) is mounted on friction pads (56) so as not to be easily displaced from a surface to which the device is applied. The means (54) comprise counters (125 and 135) which display angular and distance measurements respectively. The counters are driven by relative rotation between the base structure (53) and structure (57 or 58) superimposed thereon.
Patent GB-2267629-A (GB)
Title: Signal error reduction in receiving apparatus
Inventor: DEDIC IAN JUSO
IPC: H04L25/06
Filed: 1993-05-26
Abstract: A received signal burst is demodulated to produce inphase (I) and quadrature (Q) baseband signals which are digitised to provide a set of signal-value pairs, each consisting of an I-value and a corresponding Q-value in one bit period of the burst. The pairs. when plotted on a complex signal space (I-Q) diagram, lie substantially on a common circle. To cancel DC offsets in the I and Q signal paths the average I-value and average Q-value over the burst are found and subtracted respectively from the I- and Q-values of each signal-value pair so as to shift the circle so that the origin of the I-Q diagram lies within the circle. Then, to restore the DC content of the I and Q signals, the distances Ii1, Qi2, Ii3 and Qi4 of signal-value pairs from the I- or Q-axis are averaged in four regions of the I-Q diagram, and the difference between the respective average distances for mutually opposed regions is used to derive I- and Q-direction shift values which, if subtracted from the I- and Q-values respectively of each signal-value pair, would bring the centre of the circle closer to the origin. <IMAGE>
Patent GB-2278964-A (GB)
Title: Track-mounted lighting fixture
Inventor: SHEN WEI HONG
IPC: F21V21/34
Filed: 1993-06-04
Abstract: The fixture has two track-engaging walls defining a channel 11 therebetween. A gap 15 extends from the thread 16 thereof and a lock nut 2 is threaded onto the outer thread, whereby the pitch between the walls of the channel is enlarged or shortened for allowing the device to be mounted or demounted on an overhead track as the lock nut is turned. Connector 3 extends through member 16 and mounts the lamp 4. Contacts 43 engage plates 5 which provide contact to the track. <IMAGE>