baber/WOPTO huggingface dataset:
Patent GB-1292407-A (GB)
Title: Improvements in or relating to making textured yarns and apparatus therefor
Inventor: BUZANO M
IPC: D02G1/02
Filed: 1970-12-10
Abstract: 1292407 Texturing yarns; twisters and yarn protectors SOC RHODIACETA 10 Dec 1970 [12 Dec 1969] 58646/70 Headings DID and D1F In the manufacture of a textured i.e. torque, yarn of a thermoplastic material, a running yarn is twisted (a so-called "stripping back twist" action) by frictional engagement with a ring disposed between a heating element for setting the twist and a take-up mechanism e.g. a ring and traveller. Yarn 1 from a bobbin 2 passes through a guide 5, optionally is drawn between feed and draw rolls 4 and 6, 7, by passing over a draw pin 5, and twist, effected by a stationary twisting and balloon-confining ring 10, runs back freely over, and is set by, a heater plate 8, the yarn passing through a traveller 12 to be wound on a spindle 13. The internal yarn-engaging portion of ring 10 is formed at the intersection of two concave surfaces. Guide (ring) 9 and ring 10 are mounted on supports rigidly connected to the ring rail.
Patent GB-1457264-A (GB)
Title: Pregnane acid derivatives
IPC: C07J5/00
Filed: 1973-12-19
Abstract: Pregnanoic acid derivatives of the following formula <IMAGE> in which the substituents are defined in Claim 1, are prepared. These compounds are obtained by oxidising a corresponding pregnane derivative which has an aldehyde group in position 21 to the free acid using heavy metal oxides. These acids can be converted into corresponding 21-esters. The said compounds which have a saturated 1,2-bond can be dehydrogenated to  DELTA <1,4>-steroids. 11-Hydroxy groups can be oxidised to 11-keto groups; the 11-hydroxy group can also be esterified. It is furthermore possible to hydrolyse ester groups and to convert the free acid into the alkali metal salts. The said compounds are valuable pharmaceutical agents and can also be used as intermediates for the preparation of pharmaceuticals.
Patent GB-1453733-A (GB)
Title: Electro-optical display devices
IPC: G09F9/00
Filed: 1973-12-27
Abstract: 1453733 Polarizing apparatus; modulating light THOMSON-CSF 27 Dec 1973 [29 Dec 1972] 59892/73 Headings G2F and G2J [Also in Division G5C] In a display arrangement wherein a collimated linearly polarized light beam is spatially intensity modulated by an electro-optic device 3 and an  analyzer 22, the modulated beam is further incident on a diffuser 4 which increases the angle of view of the display but reduces the contrast in the presence of ambient light, and a second analyzer 23, disposed to pass selectively the light from the analyzer 22, which tends to restore the contrast. In Fig. 1, the analyzers 22 and 23 are parallel. Ambient light reflected by diffuser 4 back to an observer has to pass through analyzer 23 twice and is attenuated by 50% due to polarization, and additionally attenuated on each pass if the analyzer exhibits some absorbance even in its preferred direction. In a second arrangement, Fig. 3 (not shown), <SP>#</SP>/ 4  plates are disposed between analyzers 22 and 23 and the diffuser, respectively forming a circular polarizer and a circular analyzer of the same, band for light transmitted from the device 3. Ambient light transmitted by analyzer 23 and reflected at diffuser 4 passes twice through a <SP>#</SP>/ 4  plate and hence is blocked when again incident on analyzer 23. The diffuser 4 should be such as does not influence the polarization of incident light. In a preferred arrangement, circular polarizing sheets 22, 23 are attached to either side of a paper diffuse 4. The device 3 may comprise an electro-optic crystal e.g. KDP, or a liquid crystal material, and may exhibit variable double refraction, optical activity, or dynamic scattering. One or both electrodes 31, 32 may be shaped or segmented, or several electrodes may be stacked alternately with insulating dielectric films for selectively displaying symbols. The light source may be naturally polarized, or a polarizer 21 may be provided. A lens may be provided for projecting light from the analyzer 22 ( and associated #/4 plate) to the diffuser 4. The face of polarizer 23 adjacent the observer may have a matt finish or an anti-reflection coating.
Patent GB-1366312-A (GB)
Title: Liquid-gas contact apparatus
IPC: B01J10/02
Filed: 1970-12-17
Abstract: 1366312 Gas/liquid contact C-W PILO 14 Dec 1971 [17 Dec 1970] 59941/70 Headings B1F and B1R In gas/liquid contact apparatus of known type, Fig. 1, in which there is countercurrent gas/liquid flow in passages between plates 24 the walls of plates 24 are contoured and/or include surface irregeulations as in, e.g. Fig. 5, Fig. 9 and Fig. 11 or as shown in Specification No. 859,097 so as to form regions along the passages for alternately accelerating and decelerating the gas and for forming and reforming fresh liquid surfaces in the passages.
Patent GB-1274697-A (GB)
Title: Polymerisation of olefins
IPC: C08F10/00
Filed: 1969-12-10
Abstract: 1,274,697. Polymerizing olefins. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 10 Dec., 1969 [16 Dec., 1968], No. 60380/69. Heading C3P. Polymers of ethylene or copolymers of ethylene and up to 10% by weight of one or more alpha-olefins, are prepared by polymerizing the monomer(s) at 0-110‹ C. under atmospheric or superatmospheric pressure, in the vapour phase in the substantial absence of moisture and oxygen and in the absence of a liquid hydrocarbon diluent, and in the presence, as catalyst, of (A) finely granular ethylene polymer impregnated with compound (a) in the absence of any compound (b), and (B) finely granular ethylene polymer impregnated with compound (b) in the absence of any compound (a), where compound (a) is AlR 3-n X n , wherein R is alkyl or trialkylsiloxy, X is halogen, trialkylsiloxy or alkoxy and n is O to 2, and compound (b) is VOY 3 , wherein Y is halogen, alkoxy or trialkylsiloxy, with the proviso that at least one Y is alkoxy or trialkylsiloxy. In the examples: ethylene is polymerized using VO(O-iso- C 4 H 9 ) 3 , VOCl(OC 2 H 5 ) 2 , VO(OSi(CH 3 ) 3 ) 3  or VO(O-iso-C 3 H 7 ) 3 , with Al(C 3 H 5 ) 2 Cl in the presence of hydrogen and a copolymer of ethylene and propylene is prepared using VO(O-iso-C 4 H 9 ) 3  and Al(C 2 H 5 ) 2 Cl.
Patent GB-1222289-A (GB)
Title: Improvements in tube couplings
Inventor: HAMILTON THOMAS WILLIAM
IPC: F16L37/084
Filed: 1968-12-19
Abstract: 1,222.289. Tube couplings. T. W. HAMILTON. 21 Nov., 1969 [19 Dec., 1968], No. 60473/68. Heading F2G. A push-in tube coupling comprises a bore 2 in a block 1 arranged to receive a tube 20 and provided with an 0-sealing ring 14, a washer 15, and a peg 17 integral with a plate 18 affixed to the block 1. The washer 15 is circular with a hexagonal shaped opening in the centre to receive and fit the tube 20. In operation, the end of the tube 20 is pushed through the opening in the washer 15 and enters the inner part 9 of the bore 2, a seal being formed between the tube and the block 1 by the 0-ring 14. The friction between the tube 20 and the washer 15 causes the washer to be pressed against the 0-ring 14 and keeps the washer normal to the axis of the bore. If an attempt is made to withdraw the tube 20 from the bore 2, the friction between the tube and the washer 15 tends to pull the washer into a skew position, as shown, to contact the peg 17 on one side which causes diametrically opposite parts of the washer 15 to bite into the tube and prevent its withdrawal. The tube 20 may be withdrawn by inserting a headed pin (22), Fig. 5 (not shown), into a recess 21 so that it contacts the washer 15 diametrically opposite to the peg 17 to hold the washer flat against the O-ring 14 and prevent it from biting into the tube as the tube is withdrawn. The coupling may be used to connect two pipes, the block 1 comprising one of the pipe ends. Alternatively, the block (1), Fig. 2 (not shown), may be formed with a number of holes (2), each to receive a tube, and be secured by bolts (5) to one face of a valve (3) in a pneumatic logic &c. circuit. The bolts (5) also secure a plate (18) having a number of pegs (17), one for each hole (2), to the top of the block (1). The tube(s) and block may be made of metal or plastics, while the washer is made of metal.
Patent GB-1249710-A (GB)
Title: Teaching aids
Inventor: WAKEFIELD AUDREY
IPC: G09B19/02
Filed: 1969-12-16
Abstract: 1,249,710. Teaching counting. A. WAKEFIELD. 16 Dec., 1970 [16 Dec., 1969], No. 61347/69. Heading G5G. An aid for teaching counting and number bases comprises a plurality of columns 9, a marker 8 movable along each column, a window 11 at one end of each column, and a slidable member 7 coupled to each marker and carrying markings which appear consecutively in the window as the marker is moved along the column, at least one member carrying a marking, such as the word " Exchange ", which appears in the window when the marker has travelled the full length of the column to instruct the user to move the marker in the adjacent column by one place. In a further embodiment (Fig. 2, not shown), counting is to the base 2, and the members are marked with a series of squares representing units and so arranged that as the marker is moved, a greater number of squares becomes progressively visible. The columns may be arranged horizontally. The slidable members could be parts of endless bands.
Patent GB-1261979-A (GB)
Title: Display system
Inventor: BASKIN HERBERT BERNARD
IPC: G06F3/153
Filed: 1969-12-24
Abstract: 1,261,979. Cathode-ray tube displays. INTERNATIONAL BUSINESS MACHINES. CORP. 24 Dec., 1969 [15 Jan., 1969], No. 62807/69. Heading H4T. A cathode-ray tube display system utilizing a tube with a screen having two phosphor layers of different persistence times includes control means receiving instructions from memory and selecting, by appropriate choice of accelerating voltage, the layer for display and also controlling the display regeneration correspondingly. The facilities available include display of points, lines and characters under control of digital instructions successively called from computer memory, and an alphanumeric and a function key board for user communication with the program. The function keyboard may be used in connection with a light-pen to enter and manipulate graphic information. Graphic display.-The control words (of 16 bits each) are called up in sequence. Each word specifies x and/or y co-ordinates either in absolute form or relative to the last addressed spot position, and control the beam unblanking as required. For character display the centre-point is addressed first, and then signals ordering the spot deflection to write the character are decoded to energize independent deflection coils. Light pen.-This is a fibre-optic device and includes a switch operated when the tip is pressed against the screen. The pen is operative to draw lines etc., and/or pass positional information to memory, only in certain modes of operation. Keyboards.-In addition to the alphanumeric keyboard, a programmed function keyboard is provided which is pre-set by the use of an overlay for the keys carrying punchings to enable the keys to function appropriately to the particular overlay designations.  Multiple display units.-A number of display units may be controlled by the program, which allows selection of units for display. Long and short persistence display.-Data for display by the long persistence phosphor layer (so-called "static" display) is specified as such by the control words and regeneration of this for one of (say) thirty-two consoles by the program controls is followed by programmed regeneration of the short-persistence (or "dynamic" display) layers of all consoles. Program details, including subroutine jumps for character display etc., interrupts resulting from pen signals, etc. are set out in the Specification, which also gives schematic layouts of the logic circuitry.
Patent GB-2023334-A (GB)
Title: Fluorescent lamps
IPC: H01J61/067
Filed: 1978-06-16
Abstract: The useful life of a fluorescent lamp having a first pair of electrodes (cathodes) (8), coated with electron emissive material, is increased by the provision of a pair of second electrodes (cathodes) (20), each electrode being carried by one of the mount assemblies (6) and connected to one of a pair of pins (10) or (26) projecting from a respective end cap. These second electrodes are orientated at right angles to the adjacent first electrodes (8) and are spaced by a distance greater than the distance between the first electrodes. When the first electrodes (8) cease to function properly, the operation of the lamp can be continued employing the hitherto unused second electrodes (20), for which the now spent first electrodes act as anode rings <IMAGE>
Patent GB-2026644-A (GB)
Title: Bracket for Timber Joints
IPC: E04B1/26
Filed: 1978-07-26
Abstract: A bracket for securing a roof truss to a wall includes first, second and third planar portions 21, 22, 23, which are all mutually perpendicular. The bracket is formed from a rectangular metal blank 10 having a cut 11 parallel with its longer sides 12 and 13 and terminating in an angled further cut 14. The second portion 22 is bent along a fold-line 17 which forms an extension of the further cut 14. <IMAGE>
Patent GB-2003921-A (GB)
Title: Lubricants
IPC: C10M135/16
Filed: 1978-08-02
Abstract: Lubricating oil compositions comprising a lubricating oil base and a compound having the formula:-   <IMAGE> wherein R3 and R4 are the same or different and each is a straight- or branched- chain alkyl residue having from 4 to 10 carbon atoms or a cycloalkyl residue having from 5 to 12 carbon atoms in the ring. The compounds of formula I combine satisfactory solubility and volatility properties in lubricating oil media with a high level of load-carrying activity.
Patent GB-2029170-A (GB)
Title: Error detection and correction system
IPC: H04L1/00
Filed: 1978-08-24
Abstract: An error detection and correction system for a data transmission system subject to high error rates, e.g. as bad as 1 in 10<2> of the data bits, is described, in which both majority decision techniques and forward error correction are used. The data D is coded into blocks with parity bits P, Q generated in two-dimensional manner from the data bits, the parity bits being distributed throughout the block instead of all grouped together. Each data block is sent four times, and on reception each block is checked using parity techniques and the errors counted. The worst block is discarded and the other three blocks are subjected to majority de cision votes on a bit-by-bit basis. The block thus derived is then subjected to error detection techniques with block repetition if needed. The reply bits R used to advise the source terminal as to whether a block has been correctly received or not are distributed throughout the block to minimize their vulnerability to burst error conditions. Control bits C and address bits A have their own parity in addition to the overall two-dimensional parity. <IMAGE>
Patent GB-2007091-A (GB)
Title: Ophthalmic composition
IPC: A61K9/06
Filed: 1978-08-25
Abstract: An ophthalmic composition in the form of a gel comprises an aqueous solution of a carboxyvinyl polymer, a water-soluble basic substance and an ophthalmic drug admixed therewith, the gel having a pH of 5 to 8 and a viscosity of 1,000 centipoises to 100,000 centipoises at 20 DEG C.
Patent GB-2004898-A (GB)
Title: Production of vinyl halide polymers
IPC: C08F2/38
Filed: 1978-09-01
Abstract: Vinyl halide polymers and copolymers of relatively low molecular weight and low melt viscosity are made by polymerization in the presence of a free - radical - generating polymerization initiator, using as a molecular weight regulating agent one or more saturated aliphatic aldehydes having 6 to 18 carbon atoms. The polymers are useful in moulding, extrusion and coating applications.
Patent GB-2008737-A (GB)
Title: Method of Making Tubular Radiators
IPC: F28D1/047
Filed: 1978-11-09
Abstract: In the making of a radiator consisting of tubes extending (e.g. vertically) between headers, modules are formed each comprising tubes (such as 1 to 4) some of which (e.g. the tubes 1 and 4) may be curved at their ends, the tube ends extending through corresponding holes in the wall of cylindrical header members 5 and each tube being joined to a header member by a weld at the inside surface of said member. A plurality of the modules may be thereafter positioned side-by-side and the corresponding members 5 of adjacent modules joined together by welding, again at the inside surface of the members 5. All the radiator parts are made from drawn tubing. <IMAGE>
Patent GB-2009574-A (GB)
Title: Improvements in the Cultivation of Plants
IPC: A01G31/00
Filed: 1978-11-10
Abstract: Apparatus for use in the cultivation of plants includes a support frame 2, which can be foldable for stowage purposes, for a plurality of trays 18-20 provided with a porous synthetic growth media. A nutrient solution delivery system is provided for delivering the solution to the upper end of the trays, the latter being inclined in use, whereby the solution flows along the trays with excess solution flowing into a collecting tank 1 including collecting and metering compartments with liquid metering arrangements for providing a controlled liquid flow to the metering chamber, the latter incorporating a float controlled pump for controlled recycling of the liquid back to the nutrient solution delivery system. <IMAGE>
Patent GB-2017416-A (GB)
Title: Circuit board manufacturing method
IPC: G04C3/00
Filed: 1979-02-27
Abstract: A method of manufacturing a circuit board made of a resin, copper- clad substrate having circuit patterns formed thereon, in which a pattern is defined employing an etching resist to form, on the copper foil surface of said copper-clad substrate, circuit patterns and common electrodes for electrolytic plating for the purpose of interconnecting said circuit patterns, copper etching is performed employing said etching resist, a pattern is formed by employing a plating resist to cover a portion of a common electrode consisting of a copper pattern formed by means of etching, electrolytic metal plating is performed making use of said plating resist to deposit a metal which will not be dissolved by a copper etching solution, said metal being electroplated on the circuit patterns, and a further etching is carried out on the common electrode, with the metal plated on said circuit patterns serving as an etching resist. Through holes are formed in the substrate for electrical connection between patterns on opposite faces of the circuit board, electrolessly plated on their inner surfaces with copper, and subsequently reinforced by electrolytic copper plating.
Patent GB-2019964-A (GB)
Title: Disc brakes
IPC: F16H57/10
Filed: 1979-03-02
Abstract: A disc brake in an epicylic gearbox comprises interleaved inner and outer disc packs 62, 72, 82, 92 operated by pistons 60, 70, 80, 90. The outer discs are retained against rotation relative to the housing 26, 66, 68, 86 by tie bolts 126 which pass through holes 134 in the outer discs. The pistons are retracted by springs acting between the end pairs of discs, i.e. those that engage the pistons. These springs are supported on rods which slide through openings 164 in tangs 150 of the end discs, and the disc pack is assembled to that the tangs of the intermediate discs clear the springs. <IMAGE>
Patent GB-2020443-A (GB)
Title: Power supply arrangement for cameras.
IPC: H02M3/338
Filed: 1979-03-16
Abstract: A power supply arrangement drives load circuits F, H; as shown a flash tube F and a data recording device (or motor drive) H; recharging of the flash capacitor 17 being delayed until after operation of the device H in order to avoid overloading the power source A. As shown, a flash synch switch 23 and data recording switch 33 are operated together; recharging being prevented by a transistor 27 which on firing of the flash F, turns off a voltage converter B until a capacitor 26 has discharged. <IMAGE>
Patent GB-2021902-A (GB)
Title: Voice controlled communication systems
IPC: A42B3/30
Filed: 1979-05-24
Abstract: A two-way voice controlled radio system for use with a protective helmet, (10) Figure 1 (not shown). The system includes a transmitter 30-50 which is normally off, and a receiver 86-106 which is normally on. The transmitter includes a noise cancelling microphone, and an electronic switch which turns the transmitter on and the receiver off in response to an output from the microphone, and turns the transmitter off and the receiver on substantially immediately in response to the absence of a microphone output. Thus the system approximates two-way real-time communication by permitting one user to be interrupted by the speech of another. The system is designed primarily for far-field communication. <IMAGE>
Patent GB-2024583-A (GB)
Title: Soil working machine
IPC: A01B33/02
Filed: 1979-07-03
Abstract: A soil working machine comprises two groups of soil working members (24) disposed side by side, each group being movable upwardly and downwardly, for example over obstructions in the soil, by pivoting about an axis provided by pins (4). A roller (33) behind each group of working members (24) is adjustable to set the working depth of the members (24). <IMAGE>
Patent GB-2026748-A (GB)
Title: Ticket-issuing system
IPC: G07B1/00
Filed: 1979-07-20
Abstract: A system for issuing a ticket for travel to a selected destination comprises:  -a programmed computer;  -a ticket printer coupled to the said computer; -an immediate selection keyboard 2 coupled to the computer. The immediate selection keyboard presents a plurality of keys for the immediate selection of a number of destinations, each key representing the name of a destination, whereby depressing a key of the immediate selection keyboard directly introduces into the said computer the request for the selected destination; -a class-and-traveller keyboard 3 coupled to the computer. The class- and-traveller keyboard presents a plurality of keys, each key representing the specification of a type of class and of an age limit of the traveller, and being operatively associated to the control circuit of the ticket printer, whereby depressing a key of the class-and-traveller keyboard subsequently to a key of the immediate selection keyboard will cause the printing and issue of a complete travel ticket. <IMAGE>
Patent GB-2037646-A (GB)
Title: Molding plastics spacers for wipers
IPC: B29C45/26
Filed: 1979-08-06
Abstract: The invention relates to wiper blades which comprise a harness supporting a wiper strip, the harness being constituted by a primary yoke and at least one auxiliary yoke connected at a point intermediate its length to an end of the primary yoke, a plastics spacer being interposed between the two yokes to prevent contact between the yokes while allowing limited relative pivotal motion. The plastics spacer has a cross-section similar to those of the yokes, including a web and a pair of parallel cheeks extending therefrom, the spacer having a pair of lugs moulded in alignment with each other and extending internally of the spacer from the cheeks. The invention resides in a method of moulding a plastics spacer of this kind, using a pair of complementary mould parts moving relatively to each other parallel to the cheeks of the spacer and working in opposition to each other to form the lugs between such mould parts and to form one or two openings in the web to enable one such mould part to withdraw relatively from the lugs and from the spacer through the opening or openings.
Patent GB-2063342-A (GB)
Title: Eye-bolts
IPC: E06C7/18
Filed: 1979-10-23
Abstract: An eye-bolt 10 has plate 12 freely rotatable thereon, a plate 14 threaded thereon, and a spacer 16 between the plates. The corners of the plates engage in the corners of metal window frames, and are clamped by twisting the bolt. A ladder may be secured to the eye by cord. <IMAGE>