baber/WOPTO huggingface dataset:
Patent GB-2051497-A (GB)
Title: Stepper motor
IPC: H02K41/03
Filed: 1979-12-20
Abstract: A linear stepper motor (10) suited for integration into a computer disk drive system with self contained guidance and electrical connection means. The motor (10) includes a stator (12) having one or more spool shaped pole pieces (50) about whose hubs are wound electromagnetic coils (82). The coils (82) are adapted to be separately energized. An annular armature (14) which surrounds the stator (12) includes a helically threaded portion (92) with square teeth on its inside surface. The armature (14) is supported about the stator (12) by internal bearing and guidance means which provide a predetermined gap between the stator (12) and armature (14). The bearing is provided by permitting the teeth (74) on the inside of the armature (14) to ride directly on a journal portion (54) of the stator (12). The outer cylindrical surfaces of the pole pieces (50) include a helically threaded portion (76) of the same pitch. A lead advance is provided on the threads of adjacent pole pieces (50) so that the threads of only one pole piece (50) can be aligned with the threads on the opposing surface (72) of the armature (14) at a time. Stepping motion is achieved by energizing different coils in sequence to align the teeth (76) on the respective pole pieces (50) with the confronting armature teeth (74) in their own discrete axial location.
Patent GB-2065152-A (GB)
Title: New Polysiloxane Coating and the Process of Coating Therewith
IPC: C08L83/04
Filed: 1980-10-08
Abstract: Curable polysiloxane release coating compositions are modified by the inclusion of rosin or a derivative thereof containing aliphatic double bond on the ring system. Coatings from the compositions have lower adhesion than unmodified coatings i.e. they have reduced releasing properties which can be of value on release papers e.g. label backings used in high speed manufacturing processes.
Patent GB-2085811-A (GB)
Title: Toy
IPC: F16M11/40
Filed: 1980-10-29
Abstract: A pencil sharpener (25) is incorporated in a control device (20) which may be pressed into a figure base (1) temporarily to relieve tensioned strings and allow the figure to collapse. When the control device (20) is pressed fully into the base (1), the entrance to the sharpener is aligned with an opening (4) in the base (1) to allow a pencil tip (31) to be inserted into the sharpener. The figure is made up of a number of sections (6,7,8,9,11) mounted relatively to one another at loose joints and which are held erect by spring tensioned strings (12,13) extending from the base (1) and connected to the control device (20). <IMAGE>
Patent GB-2088298-A (GB)
Title: Twin Axle Suspensions
IPC: B60G5/02
Filed: 1980-11-27
Abstract: In a spring suspension unit for road vehicles, such as heavy trailers having twin axles, on each side of the vehicle a rocker beam (5) pivotally interconnecting the two axles, (2, 3) supports centrally a pivoted spring support plate (8). A row of helical springs (12) is interposed between the main frame (1) of the vehicle and the spring support plate (8). The springs may be graded in height, so that only the outermost springs (12a) are under load when the vehicle is unladen. <IMAGE>
Patent GB-2067991-A (GB)
Title: Process for the Preparation of a Furan Derivative
IPC: C07D307/38
Filed: 1981-01-08
Abstract: The invention relates to a process for the preparation of ranitidine of formula (I> <IMAGE>  which comprises reacting a thiol of formula (II> <IMAGE> with an alkylating agent of formula (III> <IMAGE> where R1 is the group -CH2CH2L, in which L is a leaving group, and R2 is a hydrogen atom, or R1 and R2, together with the nitrogen atom to which they are attached form an ethyleneimino group; and to intermediates for the said process.
Patent GB-2097402-A (GB)
Title: Foamable phenolic resin compositions for building materials
IPC: E04C2/20
Filed: 1981-04-10
Abstract: A foamable composition comprises a major amount of phenol or phenol-like resin, minor amounts of one or more foaming agents and a foam stabilizer. The composition is used to form a building component such as a block or panel having insulating properties.
Patent GB-2080856-A (GB)
Title: Charging boreholes with explosives
IPC: F42D1/08
Filed: 1981-06-19
Abstract: A method of charging a borehole with a column of explosives is described wherein the explosive charge is detonable in time-delay sequence by means of electrically initiated detonators. The method requires providing a loop 8 of an insulated electrical conductor throughout the length of the borehole and, as the borehole is charged with explosives, sliding electrically actuable time-delay detonators 5 along the wire 8 so as to be positioned at intervals throughout the borehole. The detonators are electrically coupled to the looped wire by means of slidable toroidal transformer cores 7. The wire loop, in turn, is electromagnetically energized by means of a second transformer core 4 and an energy source 1. The method provides for safe and efficient borehole charging and avoids the hazards associated with usual electric detonator systems. <IMAGE>
Patent GB-2079141-A (GB)
Title: Suit made of flexible waterproof material
IPC: A41D13/02
Filed: 1981-07-03
Abstract: A suit of a flexible waterproof material has a front opening formed at the forward edge of a tubular or funnel-shaped panel 4 of the material. The front opening extends horizontally across the front of the suit and enables the suit to be more easily donned or doffed than suits having other configurations of opening. The opening is provided with a waterproof zip fastener 2. The suit is suitable for use in water sports such as water skiing, yachting or diving. <IMAGE>
Patent GB-2087553-A (GB)
Title: Detecting compounds separated in chromatographic apparatus
IPC: G01N21/31
Filed: 1981-11-09
Abstract: Apparatus and method for detecting compounds separated out in chromatographic apparatus in which there is interposed in a UV light path 16 a rotatable opaque member 20 carrying two or more different UV light filters 18 and a sample for analysis in a cell 26. The UV light transmitted by each filter and the sample is received by a detector 28 and an electrical signal dependent thereon is separated in a circuit 30 and fed to respective recorder means 38A, 38B. Thus the UV absorbance of the sample may be recorded at a number of different wavelengths. The filters 18 may be interposed in the UV light path either before or after the sample for analysis. <IMAGE>
Patent GB-2093949-A (GB)
Title: Disc brake apparatus for motorcycles
IPC: F16D65/12
Filed: 1982-01-22
Abstract: Disc brake apparatus for the front or rear wheel of a motorcycle, including a brake disc having pairs of projections 11 located on its periphery at 120 DEG  intervals. The pairs of projections may be placed on either the outer periphery or the inner periphery of the brake disc. The projections define open ended recesses 7 receiving bosses 6 formed integrally with the wheel hub 4, and partially surrounded by hardened retainers 13. A bolt threaded into each boss prevents disassembly of the bosses and recesses but is not subjected to forces caused by thermal expansion of the brake disc during braking. One or more hydraulically activated stationary calipers (18) clamp non-rotary brake pads (19) frictionally against opposite faces of each brake disc (Figure 3 (not shown)). Provisions are made for cooling the brake disc by atmospheric air using cooling vanes. <IMAGE>
Patent GB-2093024-A (GB)
Title: 2,3,8-Triazaphenalenium salts and their preparation
IPC: C07D471/22
Filed: 1982-02-11
Abstract: 2,4,8-Triazaphenalenium salts are described of the general formula… …<IMAGE>… wherein… R<1> stands for C1-4 alkyl or phenyl,… R<2> stands for C1-4 alkyl or phenyl,… R<3> represents C1-4 alkyl, C7-12 aralkyl or phenyl,… R<4> represents hydrogen, C1-4 alkyl,… C7-12 aralkyl, phenyl (optionally substituted by one or more groups which are the same or different and selected from C1-4 alkyl, C1-4 alkoxy, C1-4dialkylamino, halogen, hydroxy and nitro) or… R<3> and R<4> when taken together form a group of the general formula… …<IMAGE>… wherein R<11> is hydrogen or C1-4 alkoxy,… R<5> stands for hydrogen, C1-4 alkyl, phenyl (optionally substituted by one or more groups which are the same or different and selected from C1-4alkyl, C1-4 alkoxy, C1-4 dialkylamino, halogen, hydroxy and nitro),… with the proviso that when R<4> is hydrogen, R<5> is other than hydrogen,… R<6> stands for hydrogen or C1-4 alkyl,… R<7> stands for hydrogen, C1-4 alkyl, phenyl, C2-5 alkoxy-carbonyl or nitrile,… R<8> stands for hydrogen or C1-4 alkyl, and… … …  (a) R<9> and R<10> taken together form a chemical bond and X is an anion or …  (b) R<10> is hydrogen then X represents -SO3<(-)> attached to the molecule in place of R<9>. … …<??>The compounds of the formula I have anti-asthmatic activity.
Patent GB-2117959-A (GB)
Title: Magnetic-tape cleaning head
Inventor: PFOST ROBERT FRED
IPC: G11B23/50
Filed: 1982-03-31
Abstract: A magnetic-tape cleaner comprises a post or head including a body 10 having arcuate surfaces 12, 13 over which magnetic tape 14 is wrapped. The body 10 has an opening 16 formed therein shaped so as to form first and second knife edges 22, 24 at points where the arcuate surfaces 12, 13 are in contact with the magnetic-tape 14. These knife edges 22, 24 provide scraping surfaces for the tape 14 regardless of the direction of travel of the tape 14 thereby to remove any foreign particles from the tape surface to prevent signal disturbance and form an opening 16 or cavity to entrap these particles and remove them from the system. <IMAGE>
Patent GB-2106195-A (GB)
Title: Apparatus for measuring lubricant in a lubricating mist
Inventor: DIVISI GUALTIERO
IPC: F16N29/04
Filed: 1982-07-07
Abstract: The invention provides an apparatus for controlling lubricating mist in a mist lubrication and cooling system, comprising a member (4) to be disposed in the mist path of the lubrication system upstream of the component to be lubricated, an at least partly transparent (5) wall mounted in said member and defining a portion of the mist path, means (10) for generating a light signal and means (18) for receiving said signal after it has passed through the mist and for transforming it into an electric signal, both said means (10, 18) being mutually aligned and disposed in positions corresponding with the transparent part, an electronic circuit (21, 22) which receives said electric signal and processes said signal in such a manner as to display the quantity of lubricant conveyed by the mist, and a signal which indicates a lubricant excess or deficiency. <IMAGE>
Patent GB-2107287-A (GB)
Title: A pack of medicinal pills
Inventor: FENWICK MICHAEL RICHARD
IPC: B65D83/04
Filed: 1982-10-18
Abstract: A pack of medicinal pills 6 comprises two cardboard discs 1 and 2 relatively turnable about a rivet 3, the disc 1 being formed with holes 4 registrable with holes 5 in the disc 2. The pills are housed in the holes 4 in a blister pack consisting of a foil layer 7 and a thin plastics layer 8. The discs 1 and 2 are provided with reference markings 9 and 10. The patient dispenses the pills 6 from the pack by pushing the pills 6 through the layer 7, and can be instructed to fold the torn portions of the layer 7 back beneath the disc 2 to deter further relative turning of the discs 1 and 2. <IMAGE>
Patent GB-2128472-A (GB)
Title: Vehicle seat slides
Inventor: BABBS FREDERICK WILLIAM
IPC: B60N2/08
Filed: 1982-10-21
Abstract: A slide assembly for a vehicle seat consists of outer and inner channels (11, 12) with the bases facing each other and with the sides of the inner channel defining races for balls (14) in extensions (9) of the sides of the outer channel. The balls (14) allow for easy relative sliding between the channels, while providing location in transverse directions. The bent-over edges (13) of the sides of the inner slide are spaced between portions (6, 7) of the outer slide when an occupant is in the seat, but come into contact with those portions respectively when the seat is unloaded and when it is loaded excessively in a crash. <IMAGE>
Patent GB-2132452-A (GB)
Title: Radio systems
Inventor: NAYLOR MICHAEL
IPC: H04L1/00
Filed: 1982-12-08
Abstract: A radio system employs a method of controlling the transmitted power of a radio signal such that a minimum power level for efficient reception is maintained. Data is simultaneously transmitted between two radio stations using an error correction code. Each block of the code is accompanied by a power bit. The transmitted power bit is set high or low in dependence upon whether the number of errors in a sample of received blocks, as determined by processing of the received code, is equal to, above or below a predetermined threshold value. At the other station the received power bit is directed to a power control device and used to adjust the output power of the transmitter of that station by continuously variable slope delta demodulation.
Patent GB-2115394-A (GB)
Title: Titanium dioxide pigment
Inventor: HOWARD PETER BARRY
IPC: C09C1/36
Filed: 1982-12-15
Abstract: A process for the manufacture of titanium dioxide pigment suitable for use in a paper laminate comprises forming an aqueous dispersion of uncoated rutile titanium dioxide which dispersion contains a source of fluoride, and a solution of cerium ions, phosphate ions and a strong acid in amounts sufficient to produce a pH not greater than 0.5, and then adding to the dispersion a water-soluble aluminium compound and changing the pH to a value within the range 4 to 9 to produce the desired coating on the pigment.
Patent GB-2124690-A (GB)
Title: Damp proof course
Inventor: VAN DOMMELEN DIRK JOHANNES
IPC: E04B1/64
Filed: 1983-02-10
Abstract: An elongate inflatable, sealable bag or envelope 1 is provided, fabricated from water impervious flexible film material, for insertion into a slot of a wall to form a new damp proof course. The bag or envelope comprises an elongate inflatable tubular body sealed at both ends, having valve means 5 therein to allow the bag or envelope to be filled under pressure with a quick setting waterproof material, the bag or envelope also having, at one or both ends thereof, flap or pocket 2 integral with or attached to the inflatable body thereof. Once the bag, together with a plurality of similar bags, has been inserted into a slot in a wall in an overlapping fashion, and the bags have been filled with the waterproof material, the bags and waterproof material provide a damp-proof course for the wall. <IMAGE>
Patent GB-2117938-A (GB)
Title: Current driver circuit for an electric-mechanical adjuster
Inventor: BURKEL RAINER
IPC: G05D3/18
Filed: 1983-03-28
Abstract: In a retroactive control circuit for the coil current of an electromechanical adjuster, the control voltage acts by way of a buffer operational amplifier (O1), upon a second operational amplifier (O2) which is wired as an integrating controller and whose negative input is connected both to the negative input of a third operational amplifier (O3), wired as a comparator, and also to a resistor (R16) located in the output circuit of a current-imaging circuit. A fourth operational amplifier (O4), wired as an oscillator, supplies to the positive input of the integrating controller (O2) a square-wave voltage at a frequency to which the adjuster cannot respond, and which has an amplitude slightly greater than the hysteresis. <IMAGE>
Patent GB-2137422-A (GB)
Title: Printed circuit board
Inventor: WILSON GEOFFREY CHARLES
IPC: H05K3/46
Filed: 1983-03-30
Abstract: A printed circuit board includes two metal cores 10 and 11 arranged parallel to one another and separated by one or more intermediate printed circuit layers 12. These layers are insulated from one another and from the metal cores. A separate printed circuit layer 14 is secured to the outer surface of at least one of the metal cores, and is arranged to carry circuit components. Plated-through holes 17 interconnect the various printed circuit layers. Heat-conducting members may be provided to interconnect the two metal cores, and either or both of the cores may be arranged to be attached to a cold sink. <IMAGE>
Patent GB-2118309-A (GB)
Title: Apparatus for monitoring loss of metal by corrosion
Inventor: COX WILLIAM MARTIN
IPC: G01N17/00
Filed: 1983-04-13
Abstract: Apparatus for monitoring the rate of loss of metal due to corrosion from a surface covered by an electrolyte, comprises a two electrode probe connected to fluctuating signal measuring apparatus. Each electrode of the probe comprises a plurality of elements, each of which elements is electrically isolated from its immediate neighbours. Alternate elements are electrically connected together to provide each of said two electrodes and the elements forming at least one of said electrodes are comprised of the same material as the surface to be monitored. The probe may be provided with heating or heat sintering means, and may be flush mounted in a surface to be monitored. The signal measured may be impedance, electrochemical noise or galvanic response. <IMAGE>
Patent GB-2138296-A (GB)
Title: Knee prosthesis
Inventor: DENHAM ROBIN ARTHUR
IPC: A61F2/38
Filed: 1983-04-21
Abstract: In an operation for correction of leg alignment in a patient with varus or valgus deformity, the surgeon selects one of a range of tibial knee components 1 which differ in the angle of inclination of their articular surfaces to their median planes and in the wedge angles of integral wedges 2 for occupying tibial condyle deficits. The surgeon also selects one of a range of metal spacing washers 13 of differing thicknesses and places it over and around an intramedullary stem 12 of a femoral component 6 to bring the articular surface of the component 6 to just the correct position along the femur. <IMAGE>
Patent GB-2123306-A (GB)
Title: Magnetic toy or instruction apparatus
Inventor: VOS GUILLAUME SEBASTIAAN
IPC: G09B1/38
Filed: 1983-07-04
Abstract: A play and instruction means on the basis of spherical elements, each element being an assembly of a hollow, spherical envelope made of a non-magnetizable material, in particular a synthetic plastics material, and a permanent bar-like magnet positioned within the envelope, said magnet having head faces curved analogously to the spherical envelope. The weight of the non-magnetic material processed in the spherical element is minimized relatively to the magnetic strength of the bar-like magnet.
Patent GB-2143704-A (GB)
Title: Data network
Inventor: SHORTLAND M T
IPC: H04L12/43
Filed: 1983-07-20
Abstract: A closed loop data transmission system which serves a number of nodes conveys data in a packet switched manner, using a number of one-byte time slots. A node with a message to send monitors the loop for a free time slot and when it finds out it sets its indicator to Start(S), whereafter it sends a source address(SA) and a destination address(DA). If during sending the node finds a slot already in use, the message is interrupted until the next free time slot is found. Sending then recommences, the first time slot of the continuation having its indicator set to Continuation(C), which is followed by the messages source address. The last byte of a message has an End(E) indicator. The receiving node "remembers" the message's source address so that it can recognise when an interrupted message is resumed. Thus packet messages can be interleaved. Each node can serve a number of terminals, e.g. connected to a lower-order loop.
Patent GB-2130543-A (GB)
Title: Multistage draping in vacuum skin packaging
Inventor: JOONASE PAUL
IPC: B65B11/52
Filed: 1983-09-05
Abstract: In a method of vacuum skin packaging an article (20) is placed between sheets or portions of packaging material in a vacuum chamber having a concave closure (11) that peripherally engages at least one of the sheets or portions, then the region between the closure and the engaged sheet or portion is vacuumized to draw the engaged sheet or portion against the closure, subsequently the region between the packaging sheets or portions is vacuumized, the first vacuumized condition is released to collapse the engaged sheet or portion into conforming contact with the article, and then the packaging sheets or portions are peripherally sealed about the article. The release of the first vacuumized condition is effected stage-wise across the closure, proceeding toward the periphery of the engaged packaging sheet or portion, to move excess packaging material to the periphery of the final packaged configuration toward wrinkling. <IMAGE>
Patent GB-2128165-A (GB)
Title: Carriage for carrying a camera
Inventor: KUS HELMUT
IPC: F16M11/28
Filed: 1983-10-05
Abstract: The invention relates to a camera carriage with a vertical lifting column for vertical adjustment of a camera. The column is telescopically extending and has a bottom outer part 10, a middle part 11 and an upper inner part 12. To allow frequent extending of the lifting column, the drive arrangement comprises a reversible electric motor 17 connected to the outer column part 10 for driving at least one endless chain 23, 24 which is guided parallel to the column axis over two end guide wheels 21, 22, 25, 26 between the intermediate and outer column parts 10, 11 and to one run of which the intermediate column part 11 is secured. To move the upper column part 12 there is at least one endless rope 43, 44 within the column parallel to its axis and which is guided over a pair of guide wheels 39, 40, 41, 42 on at least one wheel support 35, 36 extending into the column interior and connected to the intermediate column part 11. One run of the rope 43, 44 is connected to the upper, inner, column part 12 and the other run is connected to the upper end of a clamping bar 53, 54 secured on the bottom, outer, column part 10 and extending into the upper column part 12. <IMAGE>
Patent GB-2134004-A (GB)
Title: Catalyst preparation
Inventor: WRIGHT DR CHRISTOPHER JOHN
IPC: C01B32/50
Filed: 1983-12-22
Abstract: A catalyst suitable for the catalysis of the oxidation of carbon monoxide is prepared by providing the substrate with tin (IV) oxide support material and with a catalytically active material. The tin (IV) oxide is provided by contacting the substrate with a dispersion of colloidal or non-colloidal particles in a liquid medium, said dispersion being convertible to tin (IV) oxide by drying and firing, followed by drying and firing. A catalyst can be so- produced having low flow resistance, high low temperature activity and relative insensitivity to deactivation by moisture. The dispersion may, for example, be a tin (IV) oxide aqua-sol made, for example, by peptising hydrated stannic oxide with a quaternary ammonium hydroxide.