baber/WOPTO huggingface dataset:
Patent GB-1132569-A (GB)
Title: Container closure system
Inventor: MANSARD BERNARD
IPC: B65D45/06
Filed: 1967-12-27
Abstract: 1,132,569. Container closures. COMMISSARIAT A L'ENERGIE ATOMIQUE. 27 Dec., 1967 [4 Jan., 1967], No. 58732/67. Heading B8T. [Also in Division B4] A container 6 receiving radio-active material and intended for reception in a removable cup 40 disposed at the foot of a well 42 in a shielding transport flask, has its mouth 10 defined by a frusto-conical surface, sealed by an 0-ring seal 28 carried by a plug 16. The plug 16 is hinged to the container 6 by a pin 14 passing through a fork 12 on the container and a flange 18 in the plug, and is held in the closed position, Fig. 1, by an over-centre toggle mechanism comprising a latch plate 30 and a resilient catch 32. The plate 30 is hinged at 34 to the plug 16 and the catch 32, formed by piano wire bent into inverted U-shape, is secured to the container. A handling rod 36 carrying a plate 38 is attached to the plate 30, this plate 38 being adjacent a closure member 46 for the well 42 to prevent opening of the plug 16 when the container 6 is disposed in the shielding flask. To open the container the rod 36 is first moved in the direction f 1 , whereupon the plug 16 attains the position shown in Fig. 3, the rod then being moved in the direction f 2  to release the recess 35 in the plate 30 from the catch 32 (Fig. 4, not shown).
Patent GB-1364639-A (GB)
Title: Pulse signal amplifying circuits
IPC: H03K5/159
Filed: 1971-12-21
Abstract: 1364639 Transistorized pulse amplifiers FUJITSU Ltd 21 Dec 1971 [21 Dec 1970] 59439/71 Heading H3T A pulse amplifier comprises an input delay line feeding a common base stage having in shunt between emitter and base an impedance equal to the characteristic impedance of the line. It is explained that a pulse in the conducting direction sees the input impedance of the transistor as a short-circuit so that the pulse is reflected and a current of twice the input current flows in the transistor, giving a gain of two. The reflected pulse is either absorbed in the impedance at the input end of the line or, if the source impedance is high, the pulse reflected from the source is of opposite polarity and sees only the characteristic impedance shunting the transistor line and is dissipated. The length of the line is such that this reflected pulse arrives after the original pulse has terminated. The transistor amplifier (Fig. 2, not shown) may have variable base bias to control the gain.
Patent GB-1419670-A (GB)
Title: Device for the machining true-to-profile of rails  which have been built up by welding
IPC: B24B19/00
Filed: 1973-12-28
Abstract: 1419670 Grinding rails ELEKTRO-THERMIT GmbH 28 Dec 1973 [29 Dec 1972] 59963/73 Heading B3D A device for machining rails which have been built up by welding comprises a chassis 1 which is adjustably connected to a grinding unit 6 and is adapted to move the unit parallel to a rail 3, the grinding unit being guidable over a guide template 12 having a fixing arm 22 and adjusting means 15, 16 whereby it is adjustable horizontally and vertically, and the guide template having an arcuate portion corresponding to the profile of the rail and straight portions at the beginning and end of the arcuate portion. The chassis 1 is movable backwards and forwards along a track 2 on which the rail is also fixed. A plate 21 on the chassis is connected to the fixing arm 22 by the adjusting means in the form of screws 15, 16 and, if necessary, a packing piece 18, or alternatively, wedges, whereby the arm is adjustable vertically, horizontally and angularly in relation to the chassis. The guide template 12 is carried by the fixing arm and receives rollers 4 of the grinding unit 6 which has a grinding wheel 8 and is adjustable towards and away from the rail by movement of a support 7 driven by a chain 10 from a motor 9. The rollers are caused to travel along the guide template 12 by an adjusting device 5 driven by a motor 11 or manually.
Patent GB-1331515-A (GB)
Title: Process and apparatus for producing light-conducting glass fibre
IPC: C03C13/04
Filed: 1970-12-30
Abstract: 1331515 Optical fibres NIPPON SELFOC KK 30 Dec 1970 [30 Dec 1969] 61806/70 Heading C1M To produce an optical fibre having a refractive index distribution across the fibre cross-section such that it is highest at the centre and lowest at the periphery of the fibre, a homogenous crosssection glass fibre of a composition which includes ions which contribute to a high refractive index is passed into a molten substance at an elevated temperature containing ions which contribute to a lower refractive index, so that thermal diffusion causes some of the first mentioned ions to be replaced by the second mentioned ions, the specific gravity of the molten material differing from that of the glass fibre by less than 0À4, so that excessive forces do not deform the softened fibres. The first ions are preferably of thallium and the second ions alkali metal ions. The molten material consists of one or more alkali metal salts and at least another salt of alkali earth metals, lead and zinc. U.K. Specification 1,266,521 is referred to. The following Tl-containing glass compositions in mole per cent are disclosed:
Patent GB-2001645-A (GB)
Title: Preparing Tobias Acid
IPC: C07C301/00
Filed: 1978-07-24
Abstract: Tobias Acid is obtained by reacting a water-soluble salt of 2- hydroxy-1-naphthalenesulfonic acid, a source of ammonia and a source of sulphur dioxide in an autogenous pressure reactor, extracting the reaction mixture with a water-immiscible organic solvent to remove 2- aminonaphthalene therefrom, and acidifying the extracted aqueous product at a pH of about 1.8-2.5 and at a temperature of about 20-80 DEG C to obtain Tobias Acid with a low content of 2-aminonaphthalene.
Patent GB-2014683-A (GB)
Title: Threaded inserts
IPC: F16B37/12
Filed: 1978-10-04
Abstract: A threaded insert 12 for insertion in a bore has a cylindrical body with a longitudinal bore part of which is screw-threaded to receive a bolt or screw and part of which is plain, at least part of the plain portion being of smaller diameter than the threaded portion and having at least one region of weakness - a slit or groove - so that the plain portion can be expanded radially outwardly by a plug or ball 13 to grip the bore wall. Various forms are described. <IMAGE>
Patent GB-2008647-A (GB)
Title: Retractable Wheels on Transportable Buildings
IPC: E04B1/343
Filed: 1978-11-13
Abstract: Transportable buildings comprising an insulated body structure carried on a rigid floor structure, affording a habitable space are provided with a plurality of ground wheels which are retractable relative to the floor structure from respective operative positions, in which they transmit the weight of the building to the ground to enable it to be transported, to respective inoperative positions in which the weight of the building is transmitted to the ground at least primarily by supporting means other than said ground wheels. The wheels may be road or flanged railway wheels and may be retracted by operation of electrical, mechanical or hydraulic mechanism 40. Simultaneous retraction of main and jockey wheels of a trailer may be effected by linkwork or of the means and the wheels may be locked in their extended position by a means 50. The trailer pick up mechanism may be arranged to be automatically disabled when the wheels are retracted. <IMAGE>
Patent GB-2015038-A (GB)
Title: Shogging Mechanisms
IPC: D04B15/12
Filed: 1978-11-15
Abstract: A shogging mechanism for use, for example in knitting cable pattern, on circular knitting machines incorporates a cam 18 on a mounting fixed with respect to one needle bed of the circular knitting machine, movement of the cam on its mounting causes another needle bed of the circular knitting machine to be relatively displaced to an extent determined by the cam profile. The shogging cam is preferably rotatable by means of a cam in fixed relationship to the cam system of the knitting machine engaging a lever arrangement for turning the shogging cam. <IMAGE>
Patent GB-2027435-A (GB)
Title: Curable Resin Compositions
IPC: C08L61/00
Filed: 1978-12-12
Abstract: Curable organic resin compositions, such as epoxy resins, are provided, based on the use of a diaryl iodonium salt-redox catalyst curing system. The curable composition comprises a cationically polymerisable organic resin and 1% to 35% by weight of a mixture of a diaryl iodonium salt, a copper salt and ascorbic acid or a derivative thereof. The curable compositions can provide flexible or rigid organic resin foam when used with a volatile organic solvent as a result of exothermic heat of cure.
Patent GB-2015629-A (GB)
Title: Hollow glazing panels
IPC: E06B3/673
Filed: 1979-03-16
Abstract: In the manufacture of hollow glazing panels 6 in which vitreous sheets 1, 2 are assembled spaced apart by one or more intervening marginal spacer strips 3 of plastically deformable material, joints at the ends of the spacer strip or strips 3 are formed by applying the strip or strips around the margins of the first sheet 1 so that each end of the strip material lies at a corner of the sheet, applying the second sheet 2 to the first with the spacer strip or strips 3 intervening between and adherent to them, holding the thus formed assembly in position and applying forces to the spacer material at at least one corner of the assembly to squeeze its ends together. Apparatus for performing the method comprises a support and locating means (not shown) defining the position shown for a corner of the assembly 6, means such as the clamp 11, 12 for holding the assembly in that position, and means such as a re-entrant pressure finishing tool 35 and/or at least one squeezing tool 27 for applying the forces to the ends of the spacer material. The spacer 3 preferably comprises a tacky curable polymeric spacing element 4 and a cured desiccant-containing supporting element 5. <IMAGE>
Patent GB-2045687-A (GB)
Title: Printing sets
IPC: A63H33/30
Filed: 1979-03-09
Abstract: A toy printing set 1 is provided comprising an elongated box-like holder 2 and a plurality of printing elements 4. The printing elements are selectively attachable to the holder. One wall 3 of the holder is formed to present a pair of oppositely extending projections and the printing elements are of generally channel-shaped cross-section and have inwardly directed flanges which, in the position of use, slidably engage the oppositely extending projections of the holder. <IMAGE>
Patent GB-2016595-A (GB)
Title: Regulating arrangement for an injection pump of an internal- combustion engine
IPC: F02D1/02
Filed: 1979-03-15
Abstract: An air compressing internal- combustion engine has a governing device producing a force dependent on the pump speed or engine speed and an adjustably loaded leaf spring 12 which determines the no-load speed by acting at point 15 upon the governing device linkage and which is abutted at two points 13 & 14 fixed in relation to a housing. Abutment 13 is adjustable by screw 16 to set the no-load speed. Abutment 14 is movable by expansible element 21 which is heated by winding 20, which is electrically energised when the engine is switched on. Either abutment 13 or 14 may be movable by the expansible element to provide an increase in the no-load speed when the engine is cold. <IMAGE>
Patent GB-2019040-A (GB)
Title: Feeding Filamentary Material
IPC: B65B13/18
Filed: 1979-04-27
Abstract: A strapping machine for wrapping filamentary material around a package includes co-operating rotary members for feeding, or back-feeding, the filamentary material and means associated with one of the rotary members for generating electric pulses indicative of rotation of the member. When the roller associated with the pulse generator is brought to rest, by tightening of the material, a discriminator circuit gives a signal for the next operation in a machine cycle to commence.
Patent GB-2022583-A (GB)
Title: New ionic polyiodo benzene derivatives useful as X-ray contrast media
IPC: C07D209/48
Filed: 1979-05-24
Abstract: This invention relates to compounds of the formula (I):   <IMAGE>  in which:  n is an integer from 1 to 5 inclusive,  R1 represents a hydrogen atom or a C1-4 alkanoyl group, R2 represents a hydrogen atom, a C1-4 alkanoyl group, or a C1-4 alkyl group,  R3 represents a hydrogen atom, a group of the formula   <IMAGE> or of the formula -CONHR6, in which:  R4 represents a hydrogen atom or a C1-4 alkanoyl group, R5 represents a hydrogen atom or a C1-4 alkanoyl group, or a C1-4 alkyl group,  R6 represents a hydrogen atom or a C1-4 alkyl group, R7 represents a hydrogen atom or a methyl group, and their C1-4 alkyl esters and their salts with pharmaceutically acceptable bases. Said compounds are useful as X-ray contrast media.
Patent GB-2028934-A (GB)
Title: Improvement in Starters of Internal Combustion Engines
IPC: F16D41/067
Filed: 1979-07-26
Abstract: An actuator for a starter motor for an internal combustion engine has a free-wheel device 3 including wedgeable members 6 inside a cage 7. Between the cage 7 and the drive 1 is a plate 12 with a hub (12a) which fits over the shaft of the starter motor with the minimum working clearance. The plate 12 has projecting members 12b which cooperate with the wedgeable members 6. The plate 12 acts to centre both the cage 7 and the driver 1 with respect to the shaft. It may also transmit torque from the driver 1 to the cage 7. The plate 12 may be made in one piece with the driver 1 (Fig. 5, not shown). This construction ensures good centering while being relatively cheap and simple. <IMAGE>
Patent GB-2032413-A (GB)
Title: Foaming agents for cement
IPC: C04B28/02
Filed: 1979-09-24
Abstract: Foaming agent for preparing foamed cement insulating panels comprises alkali metal monoalkylolamido sulphosuccinate and alkyl or alkyl ether sulphate. The composition may be used to form a prefoam for admixture with cement, especially cements of low or zero sand content, and provides a foamed cement of improved foam stability. The sulphosuccinate is an alkali metal salt of a sulphosuccinate half ester of an alkylolamide or alkylolamide ether of the formula RCONH(R'O)nH where R is a straight or branched chain saturated or unsaturated hydrocarbon group of 6 to 22 carbon atoms, R' is an alkylene group of 2 to 3 carbon atoms and n is 1 to 20. The sulphate has a branched or straight chain alkyl group having from 6 to 22 carbon atoms and from 0 to 20 alkyleneoxy groups.
Patent GB-2032676-A (GB)
Title: Phonographic platter
IPC: G11B19/20
Filed: 1979-09-27
Abstract: A phonographic platter has an upper surface of dished shape, preferably formed by a frusto-cone 20 and a plane central section 18. The centre of a record on the platter, in use, is held down by means such as a weight 24. Preferably, the platter is formed by upper and lower plates 10, 12 sandwiching a resilient material 22. <IMAGE>
Patent GB-2033832-A (GB)
Title: Method and apparatus for making sacks which are open at one end and comprise an outer sack of woven plastics tape fabric
IPC: B31B170/20
Filed: 1979-09-28
Abstract: Sacks are made from a web comprising a tube of stretched plastics tape fabric woven around a thermoplastic tubular film. The web is continuously fed to a storage device from which two-ply sack lengths are intermittently withdrawn and severed and provided with a stitched base seam. Each severing cut is made to extend through transverse strips of hot-melt adhesive which were applied to both sides of the fabric tube and cooled. After severing and prior to stitching through both plies, the inner ply is provided with a separate base seam by means of welding jaws.
Patent GB-2033384-A (GB)
Title: Derivatives of pyridin-5- methanols and quinolin-3- methanols
IPC: C07D213/61
Filed: 1979-10-04
Abstract: Imidazolylethoxy derivatives of pyridin-5-methanols and quinolin-3- methanols having the general formulae:   <IMAGE>  and   <IMAGE> and their acid addition salts may be used as antifungal and antibacterial agents R<1> to R<10> each is H, alkyl, alkoxy, alkylthio, hydroxy or halogen.
Patent GB-2042838-A (GB)
Title: Analogue to digital conversion
IPC: H03M1/14
Filed: 1979-11-29
Abstract: In order to increase the resolution of an ADC (e.g. a successive approximation type operating as in fig. 1), a number of conversions are carried out, each time with a respective one of a set of offset values, spanning a range corresponding to the least significant bit of the converter, superimposed on one of the inputs to the converter. As shown, this is effected by superimposing a ramp function. The final result is then obtained by computing the arithmetic mean of the results of the individual conversions. <IMAGE>
Patent GB-2076146-A (GB)
Title: Method and Apparatus for Sorting
IPC: B07C5/34
Filed: 1980-01-25
Abstract: The invention concerns a method of sorting comprising irradiating a plurality of objects (2), such as pieces of ore, with microwave energy at 6 and sorting the irradiated objects (2) in accordance with their temperature or with a property functionally related thereto; e.g. infra-red radiation at 11. A time lag of 10-60 seconds may occur between irradiation & sorting. <IMAGE>
Patent GB-2078640-A (GB)
Title: Tracked agricultural vehicle
IPC: A01M7/00
Filed: 1980-05-22
Abstract: A vehicle for use on the land has endless tracks (37) one mounted on each side of the vehicle. Drive to the each track is achieved through a driven sprocket wheel (38) and chain tension is achieved by adjustment of the axle position of the front wheels (26). The axle of the rear wheels (28) is sprung as also is a bogey assembly (32, 34). An idler (36) supports the track (37) on its return from the rear wheels to the driven sprocket wheel. Each track is made up of two endless belts (40, 42) which are bridged by metal cleats (44) and hoops (48, 50) are located beneath the belts to provide a degree of lateral location for the belt relative to the wheels, the external peripheries of which are recessed to accommodate the hoops (48, 50). The sprocket wheels (38) are driven by respective hydraulic motors supplied by pumps driven by an engine (22) located centrally of the vehicle. A driving cab (12) is located at the forward end of the vehicle, and a spray boom (14) is mounted at the rear with provision for height adjustment. <IMAGE>
Patent GB-2057100-A (GB)
Title: Manually-operable lever assemblies
IPC: G05G1/04
Filed: 1980-08-04
Abstract: A hand operable lever assembly of the kind specified in GB 1118431 can only be adjusted with the aid of a tool. A hand lever 10, primarily intended for controlling a brake, is pivoted to a support 11 by means of aligned pins 12. A carrier 16 is mounted for adjustment lengthwise of the lever. The carrier is pivoted to one end of a link 18 of which the other end carries a guide pin 21 sliding in slots 22 in the support. In use a brake cable is connected to the guide pin. In operation the lever moves a little over centre to its operative position. To take up slack in the cable the position of the carrier can be adjusted by manual rotation of an adjusting knob 25 fixed to a screw threaded rod 24 engaging a tapped tube 23 on the carrier. To prevent inadvertent or unintentional manipulation of the knob there is in the knob a locking screw 31 which cooperates with a flat on an hexagonal boss 26 and can be unscrewed only with the aid of a tool. <IMAGE>
Patent GB-2086110-A (GB)
Title: Opto-electronic Apparatus for Reading Information Contained in an Information Carrier
IPC: G06K7/10
Filed: 1978-10-20
Abstract: An opto-electronic apparatus is provided for reading data represented on a carrier as patterns of areas which are transparent or opaque to radiation. The apparatus includes at least one reading assembly comprising a radiation source and associated receiver. The carrier is guided through the reading assembly or assemblies for reading thereby, the outputs of the reading assemblies being connected to electronic data processing means. There is provided means for operating the reading assemblies in two different modes. In a first standby mode, only one reading assembly is supplied at intervals with short low power pulses. In a second reading mode, all the reading assemblies receives high power pulses adjusted to the maximum reading speed. The lower power pulses occur at a lower frequency than the high power pulses and at such a frequency that the assemblies can be switched into the high power mode before the data patterns have reached the reading assembly.
Patent GB-2066012-A (GB)
Title: Base current control means
IPC: H02M1/08
Filed: 1980-12-12
Abstract: The base current for a switching transistor (Tr5) in, e.g. a bridge inverter must be sufficient to maintain saturation of the transistor during conduction, and thus is a large proportion of the collector current. A base current control means must therefore have a high current gain and still be capable of short switching time. Current from a d.c. supply is controlled by a pulse width modulated switching regulator (1) according to the magnitude of base current required to provide the input to an inverter (3) the output from which provides a forward drive base current to turn-on the switching transistor (Tr5), A reverse drive pulse to turn-off the transistor is provided by a reverse pulse generator (5) connected to the switching regulator (1) in parallel with the forward drive inverter (3). <IMAGE>
Patent GB-2068680-A (GB)
Title: Arrangement for driving speaker through constant-current power amplifier
IPC: H04R3/04
Filed: 1981-01-16
Abstract: A method and its circuit arrangement for driving a dynamic loudspeaker 22 by an audio signal through a constant-current power amplifier 21, in which there are suppressed particular frequency components of the audio signal, that is, at least the lowest resonance frequency of the speaker and frequencies in the vicinity of the lowest resonance frequency so as to provide a flat frequency characteristic which is equivalent to or better than that when the speaker is driven through a constant-voltage power amplifier, at a given electroacoustic conversion efficiency of the speaker. <IMAGE>
Patent GB-2071038-A (GB)
Title: Rotary pocket wheel for small- sized articles
IPC: B65G47/84
Filed: 1981-03-03
Abstract: The invention relates to a pocket wheel device for feeding small-sized articles, such as sweets, to the radial holding elements of a wrapping machine, the device consisting of a central rotating distributor disc 1 with an external ring part which rotates in the same sense of rotation and on which there are provided receiving pockets 3 which are evenly distributed on the circumference thereof. It is the object of the invention to effect the removal of the sweets from the plate in such a way that the holding elements take hold of the sweets tangentially to the plate. According to the invention, this is brought about in that the external ring part has inside, on the circumference, a raised edge 4 which is interrupted by inlet channels 5 which are adjoined by radially outwardly extending side walls 6 of equal height which, projecting through openings in the ring part 2, are mounted in the circular ring 2 so as to be lowerable in pairs at the point of transfer to the holding elements. <IMAGE>
Patent GB-2076888-A (GB)
Title: Method and apparatus for measuring fuel flow
IPC: G01F1/00
Filed: 1979-11-09
Abstract: A fuel flow rate measuring system including an inlet (30) for receipt of liquid fuel, a flow meter (34) connected to the inlet for measuring and indicating fuel flow, and an outlet (44) for connection to a fuel consuming apparatus. A fuel flow recirculating line (42) is connected to the system between the flow meter and the outlet (44) and defines, with the outlet, a closed, constant volume fuel flow path. A gas vent (46) is disposed in the path for venting gas therein while containing liquid fuel in the path. Also disclosed is a method of measuring the fuel flow rate to a fuel consuming apparatus.