baber/WOPTO huggingface dataset:
Patent GB-2071331-A (GB)
Title: Non-destructive Testing of Ferromagnetic Articles
IPC: G01N27/83
Filed: 1980-07-23
Abstract: An instrument for simultaneously monitoring the effective cross- sectional area, and the presence of inhomogeneity caused by localized fault conditions such as pitting, corrosions, nicks, abrasions and broken wires in elongated ferromagnetic articles such as steel wire ropes 3 includes a magnet 1 and pole pieces 2, 2% for inducing a magnetic field, longitudinally in the article of such magnitude as not to saturate the article. Magnetic flux sensors, such as Hall devices 7, with their axis of maximum sensitivity set parallel to the major axis of the object 3, are located between ferromagnetic ringlike structures 4, 5, 6 surrounding the article 3. By additive and subtractive processes in a number of operational amplifiers of the outputs of the sensors changes in cross- sectional area and magnetic discontinuities in the article can be obtained. <IMAGE>
Patent GB-2057790-A (GB)
Title: Electrical connector with locking means
IPC: H01R13/115
Filed: 1980-08-13
Abstract: An electrical connector comprises a male tab (1) and a female clip (3). When the tab is inserted into the clip (3), an elastically deformable portion (5a, 9) of the clip engages the tab and the projection (9) enters an opening in the tab, thus locking the tab and clip (3) together. To release the tab flange 5a is engaged with a sloping abutment of a suitable insulating housing (shown in outline) and the projection (9) is elastically deformed downwards. <IMAGE>
Patent GB-2066471-A (GB)
Title: Digital height gauge
IPC: G01B5/02
Filed: 1980-10-21
Abstract: A digital height gauge includes a slider (16) mounting a detachable jaw (20) and movable up and down support shafts (12, 14), a transducer in the slider for converting the slider movement into electric signals, and a display device (22) providing a digital display derived from the transducer output, batteries 36 for supplying power to the converter and the display means being stored in the slider in an opposed position relative to the jaw in order and to balance the weight of the carriage. <IMAGE>
Patent GB-2064873-A (GB)
Title: Pressure sensitive electric switch
IPC: H01H13/785
Filed: 1980-11-19
Abstract: A pressure responsive electric switch has at least one pair of first (104) and second (112) conductors in spaced- apart relationship with at least one pressure sensitive resistive conductor (106, 114) is disposed in a position to interconnect the conductors when a force is applied. The invention may be incorporated in multiple touch switches having the conductors (220, 240) Figure 7 disposed side by side or stacked one above the other as in Figure 10 (not shown). The resistive conductor may be made from molybdenum disulphide particles with a resin binder and may include powdered carbon. <IMAGE>
Patent GB-2064703-A (GB)
Title: Unblocking and repairing conduits
IPC: F16L55/18
Filed: 1980-11-24
Abstract: For dislodging blockages in e.g. sewers, an apparatus comprises a plastics bag 10 inflatable 12 and deflatable 16 via a pipe 11 from a pressurised air supply to engage and hold fast with the inside surface of said sewer 9. A pipe 14 passes through the bag 10 to introduce pressurized air to dislodge the blockage 8. A series of spaced flexible, elastic, plastics hoops 13 are attached to the bag 10 and are flared to grip the pipe 9. For blocking an opened sewer under repair whilst allowing fluid flow to continue two bags (10' Fig. 3, not shown) penetrated by a pipe (7) to carry the fluid and each of similar configuration to that 10 described above are inflated in respective sewer ends. Instead of a bag 2 alternatives are described: (1) 2 circular plates whose axial separation is screw- threadedly adjustable and separated by a sleeve that expands/contracts when the plates are moved together/apart and (2) an inflatable tyre on a wheel. <IMAGE>
Patent GB-2073549-A (GB)
Title: Improvements in or relating to circuit arrangements for testing electrical characteristics of both analog and digital trunk lines connected to transit telephone exchanges of digital type
IPC: H04Q11/04
Filed: 1981-03-23
Abstract: A circuit arrangement is provided for testing electrical characteristics of both analog and digital trunk lines connected to a transit telephone exchange of digital type comprising a central control unit CC for controlling switching of codes in a connection network RC. The circuit arrangement includes an interface unit UIR for the connection network, an analog trunk line testing unit UPA, a digital trunk line testing unit UPD, a stored program microprocessor MIP operating in time division multiplex, or an interface UIC for the central control unit. <IMAGE>
Patent GB-2075140-A (GB)
Title: Automatic shoe clearance adjusting device for L-T type drum brakes
IPC: F16D51/24
Filed: 1981-05-05
Abstract: A leading-and-trailing shoe type drum brake having an automatic clearance adjusting device including a strut 8 the axial length of which is adjustable on rotation of a toothed wheel 8d. A parking lever 9 and an adjuster lever 11 are both pivoted to one shoe 2 by a pin 10, and a contact point B between the levers 9 and 10 causes the adjuster lever 11 to move on operation of the parking brake. The adjuster lever 11 includes a claw 11c engageable with the wheel 8d, to effect turning thereof on release of the parking brake when the shoe clearance has become too great. An adjuster spring 12 maintains contact between the parking and adjuster levers 9 and 11, and applies a tilting force to the adjuster lever to urge the claw 11c into engagement with the toothed wheel 8d. The lever ratio between the parking and adjuster levers is maintained constant irrespective of the clearance of the shoes, and moreover the force by which the claw is urged into engagement with the toothed wheel easily is adjustable by appropriate selection of the adjuster spring 12. <IMAGE>
Patent GB-2082533-A (GB)
Title: Drive system for ships in frozen waters
IPC: B63H23/30
Filed: 1981-07-14
Abstract: A propulsion system for ships which operate in frozen waters comprises a propulsion unit 8, which is connected by sharing 3 to a propeller 1. A flywheel 11 is concentric with the shafting 3 and can be selectively coupled to the shaft by a hydrodynamic shift coupling 10. When contact with ice is anticipated the hydraulic coupling is filled with fluid so that the flywheel 11 is brought to rotate at approximately the speed of the shaft. When the propeller shafting is slowed by impact with ice the hydrodynamic shift coupling transmits torque from the flywheel to the shafting to accelerate the shafting. <IMAGE>
Patent GB-2087509-A (GB)
Title: Suspension device for chains
IPC: F16F1/32
Filed: 1981-07-20
Abstract: A suspension device for chains, of the type having two suspension members (3, 8) for chain links, one suspension member (8) engaging in a housing (1) with a guide member (5) movable against the force of a spring (7), comprises at least one stop (15) secured to the guide member (5) and extending through a slot (16) in the housing (1). A counter-stop (17) is mounted on the housing (1) and is located such that the stop (15) engages the counter-stop (17) before the spring (7) reaches its maximum deflection so as to protect the spring (7) from being overloaded. <IMAGE>
Patent GB-2103895-A (GB)
Title: Electronic controlling device for electrical equipment
Inventor: PYNE ROGER MICHAEL
IPC: B23K9/10
Filed: 1981-08-13
Abstract: The inductive nature of transformers, motors and rotary converters is employed to detect the presence of an electrical load or short circuit at the secondary voltage terminals. A low voltage signal source is applied across the secondary voltage terminals of the transformer or windings. The frequency of the signal is chosen so as not to be significantly loaded by the impedance between the secondary terminals. A reduction in the amplitude of the signal source, occasioned by the application of an electrical load or short circuit to these terminals, causes connection of mains or primary electrical supply to the primary windings. The primary supply connection is maintained while secondary current flows, and is disconnected if secondary current ceases to flow for a prescribed interval. <IMAGE>
Patent GB-2083812-A (GB)
Title: Process for the preparation of substituted ureas
IPC: C07C273/18
Filed: 1981-09-01
Abstract: The present invention provides a process for the preparation of substituted ureas of the general formula:-   <IMAGE> in which R is an optionally substituted aryl radical, and R1 and R2, which can be the same or different, are aliphatic radicals containing up to 18 carbon atoms, wherein a nitroaryl compound of the general formula R.NO2, in which R has the same meaning as above, is reacted in an inert solvent at an elevated temperature and pressure with sulphur, carbon monoxide, a secondary amine of the general formula R1.NH.R2 and a tertiary amine of the general formula R1.N(R2)R3, in which R1, R2 and R3, which can be the same or different, are aliphatic radicals containing up to 18 carbon atoms.
Patent GB-2086231-A (GB)
Title: Orthopaedic fracture fixation apparatus
IPC: A61B17/60
Filed: 1981-10-20
Abstract: Orthopaedic fracture fixation apparatus including at least one elongate member (10, 11) located externally of the patient and connected with bone pins (12) secured in the different fragments of a fractured bone (13), the member and pins forming a rigid framework holding the fragments in a desired relationship for union, is simplified but still applicable in varying configurations by the provision of said member as an elongate carrier (10) of flexible form and charged with a hardenable material (11) normally held by the carrier in an inactive fluent state. The carrier is suitably a closed tube or a permeable rope respectively holding or impregnated with the material. The material can be hardenable by radiant energy such as heat or light, or by chemical action, the latter case suitably involving a tube divided into compartments by a rupturable wall to hold respective constituents of a hardenable mixture. <IMAGE>
Patent GB-2114780-A (GB)
Title: Current control pulse width modulated inverter machine drive system
Inventor: PLUNKETT ALLEN BARR
IPC: H02P27/06
Filed: 1982-02-03
Abstract: A machine drive control system for providing stable motor operation in the presence of a cyclic load, having a current controlled inverter 24, a first control loop 30 for maintaining motor terminal voltage under varying load conditions, and a second control loop 58 for stabilizing motor frequency against hunting oscillations. A waveform generator 10 produces three sinusoidal reference signals in three-phase relationship. These signals are compared with feedback current signals from the motor phases, and PWM control signals are supplied to the inverter 24. The loop 30 responds to motor flux determined from phase voltage measurements and a flux command signal psi * to produce amplitude commands for waveform generator 10. Loop 58 responds to phase current supplied by a synchronous switch 62 and an amplifier 70 responsive to transient changes to determine the frequency commands for generator 10. <IMAGE>
Patent GB-2094364-A (GB)
Title: Methods and apparatus for forming a multi-layered paper web
IPC: D21F9/02
Filed: 1982-03-02
Abstract: A double wire former for multi- ply paper or board and having a number of headbox outlet apertures (14, 15, 16). Three streams of stock (A, B, C) are kept separate by partition components (25, 26) even after leaving the headbox outlet apertures (14, 15, 16). At least the first stream (A) is pre-dewatered in a pre- dewatering zone (3) of the first wire (1) before all the streams (A, B, C) enter the gap region (7) between the two wires (1, 6) between which at least the last stream (C) experiences initial dewatering. It is thus possible separately to influence the predewatering of the individual streams of stock for forming sheets. <IMAGE>
Patent GB-2098420-A (GB)
Title: Conversion between analogue and digital signals
IPC: H03M1/00
Filed: 1982-03-08
Abstract: In order to improve the resolution of an analogue to digital or digital to analogue converter stage, a predetermined time varying signal is added to the input signal to be converted so that, within the sampling period, variation of the predetermined signal produces at least one transition through a quantisation boundary of the converter, this transition occurring at a time dependent on the value of the input signal. The method is particularly of use for a digital signal processor, in a feedback control system say, where for one reason or another the digital/analogue conversion stage(s) are of lower resolution than can be handled by the processing circuitry itself. For example, a certain commercially available integrated circuit digital signal processor could be of use in some specialised control applications but for a limitation in the resolution of its converter stages. <IMAGE>
Patent GB-2119047-A (GB)
Title: Locknut
Inventor: BALL NORMAN JOHN
IPC: F16B39/36
Filed: 1982-04-14
Abstract: A locknut has an outer and an inner member, (7, 13) during assembly, an end portion 17 of the inner member is turned outwardly to prevent the inner member from being separated from the outer member. The outer member has opening 9, which is non-circular extending through it and at least part of the wall 10 defining the opening is tapered. The inner members fits in the opening and has a correspondingly tapered portion. It is split longitudinally at 15 and is threaded internally. On rotating the outer member, the two members move together along a bolt or stud until surface 5 bears against the load surface. Subsequent turning causes the inner member to continue moving along the bolt or stud, the taper causing it to be compressed inwardly and grip the bolt or stud. <IMAGE>
Patent GB-2121567-A (GB)
Title: A metronomic signalling device and a method of metronomic and tempo signalling
Inventor: SHIN HSING CHEN
IPC: G04F5/02
Filed: 1982-04-27
Abstract: Metronomic signalling devices and method for generating and transmitting silent and nonvisible metronomic impulses by sense of touch, i.e. to users' skin so that the users thereby receive tempo guidance by feeling the impulse through the skin.
Patent GB-2104245-A (GB)
Title: Centrifugal regulator
Inventor: ABSENGER ERICH
IPC: F02D1/04
Filed: 1982-05-20
Abstract: The invention relates to a centrifugal regulator, particularly for internal combustion engines, comprising a driving member and a plurality of centrifugal weights which are rotated by the latter to undergo, against a biassing force, a radial displacement of an amount dependent on the rate of rotation, this radial displacement being converted into axial regulating travel and transmitted to the member to be controlled, in which a single, resiliently bendable connecting element (22), which embraces the rotary axis in mirror- image fashion, is rotationally coupled on the one hand with the driving member (10) and on the other with all the centrifugal weights (20), and during the rotary driving movement, through inherent resilient bending, converts the radial displacement of the centrifugal weights into the axial regulating travel for the control member (16). <IMAGE>
Patent GB-2105708-A (GB)
Title: 2-amino-3-(alkylthiobenzoyl)- phenylacetic acid
Inventor: WALSH DAVID ALLAN
IPC: A61K31/215
Filed: 1982-05-21
Abstract: Novel 2-amino-3- (alkylthiobenzoyl)phenylacetic acids, esters and metal salts have the formula:   <IMAGE> wherein R represents a hydrogen atom or a lower alkyl group, R<1> represents hydrogen atom or a lower alkyl group or pharmaceutically acceptable metal cation, R<2> represents a hydrogen or a halogen atom or a lower alkyl or lower alkoxy group, and Am represents a primary amino (-NH2), methylamino or dimethylamino group. The compounds have anti- inflammatory activity; have effective analgesic activity, and inhibit blood platelet aggregation.
Patent GB-2102824-A (GB)
Title: Polymer-modified polyols
Inventor: ALLPORT DENNIS CHARLTON
IPC: C08G18/40
Filed: 1982-06-23
Abstract: Dispersions of a poly-addition product in a polyester polyol are obtained by reacting a polyisocyanate with an olamine, especially a trialkanolamine, in the presence of a polyester polyol. The dispersions are useful for preparing harder polyurethane flexible foams and elastomers.
Patent GB-2120964-A (GB)
Title: Processes of applying solder
Inventor: BROUS JACK
IPC: B23K35/36
Filed: 1983-02-25
Abstract: Processes for soldering printed circuit boards with molten solder are disclosed, including fluxing the boards with a heated flux composition maintained at a flux temperature which is sufficient to heat at least a portion of the board to an elevated temperature at or above about 65.5 DEG C, but below the temperature of the molten solder, and then contacting the heated and fluxed board with the molten solder while it is still at an elevated temperature of at least about 65.5 DEG C. In addition, flux compositions for use in these processes are also disclosed, comprising specified flux activators and organic fluxing vehicles having boiling points above about 199 DEG C, and which compositions use liquids at room temperature.
Patent GB-2136282-A (GB)
Title: Improvements relating to beverage units
Inventor: PLAUT RUDOLF THEODOR FELIX
IPC: A47G29/02
Filed: 1983-03-19
Abstract: A beverage unit for standing on a surface or mounting against a wall has a platform 1 and a raised platform 3 projecting outwardly from a rear panel 13. The rear panel 13 is recessed and provides ribs 9 with notches for receipt of a cable 11 which will pass through a notch 12 in the outer rim 8 of the unit to be connected to a kettle, coffee percolator or the like set on the platform 1. The space between the platforms 1 and 3 provides storage for any required items and may be provided into separate sections. <IMAGE>
Patent GB-2139419-A (GB)
Title: Semiconductor devices
Inventor: SCOVELL PETER DENIS
IPC: H01L23/52
Filed: 1983-05-05
Abstract: Polysilicon elements of integrated circuits, for example gates or interconnects, are replaced by metallic silicide elements in order to take advantage of the lower resistivity thereof. The metallic silicide elements are obtained by depositing a layer of silicon rich homogeneous metallic silicides on an oxidised surface of a silicon substrate and subsequent patterning of the layer to provide, for example, gate elements.
Patent GB-2120422-A (GB)
Title: Digital power controller for induction motors
Inventor: UNSWORTH PETER JOSEPH
IPC: H02P23/00
Filed: 1983-05-11
Abstract: Induction motors run at much reduced efficiency below rated load and a microprocessor based system for overcoming this problem is described. A microprocessor 14 keeps a count which varies from a preset number to zero in 60 DEG  of the supply voltage waveform and each time zero is reached a selected thyristor, such as 10 or 11, is fired to supply a motor. Phase lag of current behind voltage is determined for each phase using the values of the said count when current and voltage sensors 12 and 21 sense cessation of phase current and phase voltage zero, respectively. The phase lag is compared with a desired reference value, the resultant error signal is filtered and the count adjusted in the microprocessor so that the firing time of the thyristors is varied to correct the phase lag. <IMAGE>
Patent GB-2123054-A (GB)
Title: Cladding for roof purlins
Inventor: COLES FREDERICK CHARLES
IPC: E04D13/16
Filed: 1983-05-26
Abstract: An insulating sleeve assembly comprises a relatively rigid U-shaped sleeve of metal or plastics material (18), with an infilling of heat insulating material (17) recessed to accommodate the web or webs (41) of a purlin (35). The assembly may comprise two sleeves (53, 53A), maintained in position by a retaining band (55), both holding insulating material (54, 54A). The assembly is intended for use with a heat insulating roofing system of the type defined in the parent application number 80 33274.   <IMAGE>
Patent GB-2142610-A (GB)
Title: Child resistant tablet container
Inventor: CHUDZIKOWSKI ROMAN JAN
IPC: B65D47/26
Filed: 1983-06-16
Abstract: A child-resistant tablet container comprises a container (1b) with an aperture (1a) for dispensing tablets therefrom, a movable shutter (3e) biased to close the aperture, and a removable cap (4a) containing a key member (4d) for operating the shutter from a position on the container remote from the normal storage position of the cap. Where the container is cylindrical, the aperture is on one end face, and the said operating position is adjacent the other end face. <IMAGE>
Patent GB-2125869-A (GB)
Title: Shutter for a cabinet
Inventor: GIBSON GORDON
IPC: E06B9/11
Filed: 1983-07-08
Abstract: A shutter 50 for a cabinet 10 is arranged to move on opening in a track 24 up the front, across the top and down the back of the structure. The shutter 50 consisting of slats 52 extends around a roller 34, frictionally engaging with tyres or discs 48. A coiled spring 46 is fixed to the roller 34 at one end and at the other to a spigot 40 which engages into a square hole in a bracket 44. The arrangement is so set up that the spring 46 is in a relaxed condition when the shutter 50 is in the half open position. Thus, any movement of the shutter 50 in either direction (i.e. upwards to open the cabinet fully or downwards to close the cabinet fully) stores energy in the spring and prevents the shutter "running away". <IMAGE>
Patent GB-2128310-A (GB)
Title: Heat pump
Inventor: HUGHES JOHN
IPC: F16C39/06
Filed: 1983-09-30
Abstract: A heat pump device for producing a temperature difference between two regions includes an evacuated outer annular container (2), and an inner annular container (6) spaced from and mounted coaxially within the outer container (2) for rotation about a common axis (4). The inner container (6) is supported in the outer container (2) by a magnetic bearing (8), and the inner container (6) holds a suitable gas. Permanent magnets (12) are spaced around the rotation path on the inner container (6), and four associated electromagnets (10) are similarly positioned on the outer container (2). In operation, the electromagnets (10) are sequentially actuated to revolve the inner container (6) at high speed thereby causing the temperature at the inner side wall (20) of the inner container (6) to fall and the temperature of the outer side wall of the inner container (6) to rise. This temperature change can be used to cool a fluid passing through the central flowpath (16) and to heat a fluid passing along an outer flowpath defined in part by the outer wall (18) of the outer container. <IMAGE>
Patent GB-2133258-A (GB)
Title: Whirlpool spa heating arrangement and heater therefor
Inventor: INSLEY HAROLD
IPC: H05B3/82
Filed: 1983-12-21
Abstract: An electrical flow heater 10 for a whirlpool spa bath wherein the bath water is recirculated past the flow heater 10 to maintain the bath water temperature. The flow heater 10 has a metal sheathed element 15 extending from a base plate 11 and associated with two temperature sensors, the first sensor 21 being beyond the end of the element 15 in the flow direction and the second sensor 22 being in thermal contact with the sheath of the element 15. The downstream sensor 21 is used to control the electrical input to the element 15 whilst the signal from the second sensor 22 is used to cut off power to the element 15 should the temperature of the sheath rise above a predetermined value e.g. in the absence of water. <IMAGE>