baber/WOPTO huggingface dataset:
Patent GB-1372875-A (GB)
Title: Method for producing staircases
IPC: E04F11/16
Filed: 1971-12-23
Abstract: 1372875 Staircases A JOHNSSON 23 Dec 1971 60138/71 Heading E1B [Also in Division B6] A staircase body formed by nailing together wood particle boards 1 to form treads, risers and stringers has all the outer surfaces covered with a layer of thermosetting, preferably polyester, resin reinforced with glass fibre mats, a thin layer 3 of resin being applied first followed by the mats 4 and then by further resin 5. Decorative, store simulating and slip resistant coatings are subsequently applied to selected areas.
Patent GB-1260739-A (GB)
Title: Method of dyeing polymers containing nitrile groups and articles made of same
Inventor: MAKHKAMOV KAJUM
IPC: D06P5/22
Filed: 1969-12-27
Abstract: 1,260,739. Dyeing fibres containing nitrile groups. INSTITUT KHIMII AKADEMII NAUK TADZHIXKOI SSR. 27 Dec., 1969, No. 62988/69. Headings D1B and D1P. A yellow-orange-brown shade is imparted to polymer fibres containing nitrile groups by treating the fibres with an aqueous solution of hydrosulphuric acid or its salts in a neutral medium followed by a treatment in an acidic medium. Preferably solutions of sulphides of alkali metals or ammonium sulphide are used with phosphate buffer at pH 7 to 7.5 followed by treatment with 3% solution of sulphuric acid. Optionally a further treatment with a metal salt which forms a chelate with sulphhydryl groups is employed to improve fastness properties copper and nickel salts are specified.
Patent GB-1282730-A (GB)
Title: Data record reader and control system
IPC: B41J5/38
Filed: 1969-12-30
Abstract: 1282730 Teleprinters GENERAL ELECTRIC CO 30 Dec 1969 [8 Jan 1969] 63271/69 Heading H4P Movement of a tape storing data in serial form is arrested when a printer operating therefrom is required to perform operations e.g. carriage return, requiring a longer time than when type printing is to be performed. Signals from a photoelectric punch tape reader 1À10 are fed to a decoder 1À23 controlling the opening of data gates 1À24 hence characters to be printed are passed directly to a teleprinter 1À11. If the signals require a long or short delay to allow an operation to take place circuits 1À27 or 1À28 are activated to prevent gates 1À25 allowing the reader to advance for an appropriate determined time. Each character received by the printer causes it to send a synchronizing signal back to the reader control system 1À12 causing the tape to be advanced to the next character. Delete and skip signals from the decoder are passed into skip and compare circuits 1-31, 1À32 causing appropriate action by the printer. Gate circuits (Figs. 2-4, not shown) are described in the specification to perform the various switching operations.
Patent GB-667561-A (GB)
Abstract: 667,561. Hatch covers. MACGREGOR, R., and MACGREGOR, J. Oct. 25, 1950, No. 25996/50. Class 113 (i). In a. wheel 7 for a steel hatch cover 2 of the eccentric bush type, the eccentric bush 6 is provided with a sleeve 10 projecting from its exposed flat face 11 and fitting completely around the spindle 4, the sleeve and spindle being bored diametrically from one side of the sleeve to the other to receive a through locking pin 13 which lies parallel with the general plane of the cover. The bush is formed with a cross passage 14 for the reception of a lever to facilitate turning the bush. Specification 611,848 is referred to.
Patent GB-698550-A (GB)
Abstract: 698,550. Coating paper. CHAMPION PAPER & FIBRE CO. Nov. 20, 1950. No. 28372/50. Classes 96 and 140. A mineral coating mixture 73 is applied to paper e.g. on a high speed paper-making machine by a coater blade 15 which indents the resilient surface 11 of a rubber-covered roll 12 &c. and thus stretches it as the paper passes beneath the blade, the under-surface of the paper being moistened e.g. by applying a thin film of water from a trough 21 to the surface 11 of the roll 12, to increase adherence of the paper to the roll surface during coating. The angle of inclination of the blade 15 may be adjusted by a bolt 50 moving a pivot 46, and the blade pressure adjusted by a weight 48. The end of the blade 15 may be curved away from the roll 12 to faciliate threading in a lead-strip of paper. In modifications, a travelling band is used instead of the rubber covering 11. coating mixture may be applied by a roll. and water by a shower. Specification 698,610 is referred to.
Patent GB-718330-A (GB)
Abstract: 718,330. Capacitors. BENDIX AVIATION CORPORATION. Sept. 9, 1952, [Sept. 28, 1951.] No. 22653/52. Class 37. In the manufacture of a condenser, two layers of sheet metal separated by insulating layers are wound together, impregnated with an insulating compound, and subjected to pressure to flatten the winding, the pressure being maintained by expansible means until the compound solidifies. Layers of metal foil and paper insulation are wound round a flat mandrel which is then removed when the wound layers are pressed flat as shown in Fig. 3. Electrodes 16 and 17 are inserted into the roll during winding. The condenser units C are placed in a device  2 o and separated by insulating plates 19 so that they may be subjected to pressure by means of spring 22. The condensers, while loosely stacked are dried at about 190‹F. first in an oven and then in an evacuated tank. They are then impregnated with a liquid or viscous insulating compound, which can be solidified. One suitable compound comprises styrene monomer, a casting resin, and a catalyst such as lauroyl peroxide which speeds up the polymerization of the casting resin. After being saturated with the compound the condensers are subjected to pressure while the compound solidifies, and may be baked while under pressure to accelerate polymerization.
Patent GB-770938-A (GB)
Abstract: 770,938. Road sweepers. KASTRUP MASKINFABRIK AKTIESELSKAB. April 28, 1955 [April 29, 1954], No. 12336/55. Class 107 A sweeping machine with aligned rotary brushes has counter balancing means for the brushes to ensure an even pressure is maintained along the full length of the composite brush, and a rotor to deliver the swept-up material to the receptacle. The brushes 2a, b, c are connected by articulated joints and at the ends of the composite brush by bearings 13, 13a. The brush is carried by arms 14, 14a one of which (Fig. 2) includes a driving shaft and bevel wheels so that the brush pivots around the axis of the main driving shaft. The intermediate brush supports 16a. 16b are coupled to a hydraulic ram 26 by levers 23 (fulcrum at 25) 21, 19 and 18a and the links 27 (only one side set of levers is shown in Fig. 2) couple the levers to the bearings 13, 13a. The calculations for obtaining the correct lengths of the levers to ensure an even balancing force along the full length of the brush are disclosed. A further ram 26a is provided to assist raising the dust box 6. The rotor 4 driven and supported via arms similar to arms 14, 14a and revolves at a high speed to propel dust &c. into the receptacle 8. A pivoted flap 11 is provided so that by a suitable setting both wet and dry dust can be dealt with and a vacuum assembly 9 is provided to assist the taking up of the sweepings.
Patent GB-2008821-A (GB)
Title: Improvements relating to Digital Computers
IPC: G06F12/02
Filed: 1978-11-02
Abstract: The invention provides apparatus in a digital computer for translating a virtual address to a real address. The computer memory is divided into segments which may be contiguous or may be further divided into noncontiguous subsegments. The virtual address consists of three portions. The first portion SEG addresses an entry in a segment descriptor table, the entry containing a digit indicating whether the segment referred to is contiguous or subdivided. Two modes of operation are possible in accordance with the value of this digit. In the first mode the segment descriptor table entry contains a base address to which the contents of the second portion SUB of the virtual address are added to obtain a real address. In the second mode the segment descriptor table entry contains the base address of a subsegment descriptor table, and the second portion of the virtual address contains the address of an entry within the subsegment descriptor table so specified, which entry contains a real address. In either case the third portion DISPL of the virtual address constitutes a displacement which is concatenated with the real address so obtained. The segment descriptor table entries may contain a presence bit and a length field, and the subsegment descriptor table entries may contain a presence bit, and means may be provided for checking the virtual address against these to generate an interrupt in response to an invalid address. <IMAGE>
Patent GB-2042802-A (GB)
Title: Encapsulation of semiconductor devices
IPC: H01L31/048
Filed: 1979-02-14
Abstract: At least one semiconductor device 11 is encapsulated by being retained between two compliant plastics sheets 20 and 24, contiguous parts of the sheets being secured together in a sealing relationship, the plastics sheets conforming closely to the shape of, and being in sealing relationship with, at least, the portions of associated interconnection members, with which the sheets are contiguous. The sheets may be subjected to heat and/or to pressure to encapsulate the device, and may be compliant by being flexible, and/or by including an adhesive 23 to conform at least to the shape of the portions of the interconnection members with which the adhesive is contiguous. <IMAGE>
Patent GB-2056418-A (GB)
Title: Helical chute for conveying pourable materials
IPC: B65G11/16
Filed: 1979-05-22
Abstract: The lining plates 12, 13, 14 of the throat 1 of a helical chute are arranged so that they can be replaced without disturbing the other lining plates 9, 10 by providing continuous joints 5, 6 extending parallel to the conveying direction 4 between plates 10 and 14, and 9 and 12 respectively. The adjacent edges 8 of the plates at these joints diverge from the throat 1, and the plates 12, 13, 14 are supported on a mortar bed which is thicker than that for the plates 9, 10. <IMAGE>
Patent GB-2043772-A (GB)
Title: Improvements in and relating to a method of operating combustion engines
IPC: F02D41/12
Filed: 1979-06-04
Abstract: A method of operation wherein once started the engine is under accelerator control, and that when the accelerator is released completely fuel to the engine is cut off and an auxiliary means switched on to ensure fuel is restored to the engine once the engine speed falls to a predetermined lower limit (n), said auxiliary means being switched off when the engine speed rises to a predetermined upper limit (m) in response to re-actuation of the accelerator. A suitable circuit is disclosed.
Patent GB-2027779-A (GB)
Title: Hollow Kerb Drainage Units
IPC: E01C11/22
Filed: 1979-07-26
Abstract: In a kerb gulley installation comprising open-fronted hollow kerb gulley units 61, 62, 63 and an open- bottomed kerb drain unit 64, the unit end walls are each pierced by a communication aperture 49 disposed in relation to its end wall such that the aperture is separated respectively from the rear wall and from the front wall of the unit by portions of the respective end wall. The kerb gulley unit is intended for use with one or more drain units to comprise a kerb gulley installation. The endmost aperture has a push-fit closure plate 65. <IMAGE>
Patent GB-2059416-A (GB)
Title: Process for the preparation of bis-pchlorophenoxyacetic acid
IPC: C07C37/66
Filed: 1979-10-05
Abstract: A process for the preparation of bis-p-chlorophenoxyacetic acid, wherein a solution of sodium p-chlorophenolate is prepared from p-chlorophenol and sodium hydroxide in a mixture of an alcohol containing 3 to 6 carbon atoms and of a hydrocarbon with a boiling point of from 80 to 150 DEG C., with the azeotropic removal of water, followed by reaction thereof under reflux with a dichloroacetic acid ester, whereafter precipitated sodium chloride is washed out with water, followed by saponification with an aqueous solution of sodium hydroxide and distilling off of organic solvents and subsequent precipitation of the bis-p-chlorophenoxyacetic acid by acidification.   Pharmaceutical compositions comprise bis-p-chlorophenoxyacetic acid prepared by this process, in admixture with a solid or liquid pharmaceutical diluent or carrier.
Patent GB-2035479-A (GB)
Title: Power transmissions having a directionally sensitive torque- transmitting device
IPC: F16H3/66
Filed: 1979-10-19
Abstract: A torque-transmitting device in a power transmission, having a higher torque capacity in one rotational direction than in the other, includes a one-way drive device 28 in series torque-transmitting relation with a multi-disc friction device 20 so that in one rotational direction of torque transmission both the one- way device and the friction device transmit torque. Additionally, a single- plate friction device 84 is disposed in parallel drive relation with the one-way device so that, on torque reversal, only the single-plate device transmits torque. A single piston is pressurized to simultaneously engage both of the friction devices. <IMAGE>
Patent GB-2038007-A (GB)
Title: Drawing-board assembly
IPC: B43L13/04
Filed: 1979-11-14
Abstract: A straight-edged element (16) is arranged for displacement over a drawing board (14) between successive mutually parallel positions. To ensure accuracy of such parallel displacement of the element (16), its ends are connected to respective closed-loop guide elements (80) which extend along opposite edges of the board (14) around respective pairs of driving and return wheels. The closed loop elements (80) are arranged to execute identical circulating motions by releasable interconnection of the driving wheels to a shaft and by the provision of protrusions on the driving and return wheels which engage apertures in the closed loop elements (80) to prevent slippage therebetween. The elements (80) carry a counterweight (82). The element may be locked relative to the board and may be raised clear of the board by means of a lever (166) operated cam. <IMAGE>
Patent GB-2039242-A (GB)
Title: Device for moving radioactive sample holders
IPC: G01T7/08
Filed: 1979-12-13
Abstract: A device for moving a sample holder containing a radioactive sample into a measuring chamber comprises a slide (1) comprising radiation absorbing material. At one end, the slide is provided with means (2) for holding a sample holder (4), the slide being movable perpendicularly to the longitudinal direction of a rack (3) in which is arranged a plurality of sample holders. The rack is associated with a ramp (5) and, as a result of a longitudinal movement of the rack, sample holders are raised by the ramp until the first one is gripped by the holding means (2) of the slide, whereupon the slide is moved perpendicularly to the longitudinal direction of the rack (3) to move this sample holder into the measuring chamber. The measuring chamber has an aperture through which the slide passes to move the sample holder into the measuring chamber, and thereby to seal the aperture. <IMAGE>
Patent GB-2037287-A (GB)
Title: Naphthalene derivatives
IPC: C07D207/40
Filed: 1978-08-04
Abstract: A compound of the structure   <IMAGE> wherein X is a single bond or a straight or branched chain alkylene group of the structure (CH2)n wherein n is 1 to 10, Y is   <IMAGE> wherein R6 and R7 are the same or different and are hydrogen, lower alkyl, trifluoromethyl, monocyclic cycloalkyl having 3 to 6 ring members, monocyclic cycloalkyl lower alkyl, wherein the cycloalkyl has 3 to 6 ring members, hydroxy- lower alkyl, phenyl, lower alkyl- phenyl, acyl, di(lower alkyl)phenyl, halophenyl, mono-, di- or tri- nitrophenyl, phenyl lower alkyl, or monocyclic heterocyclic, wherein lower alkyl contains 1 to 8 carbons, or   <IMAGE> taken together forms a heterocyclic radical; wherein the heterocyclic radicals represented by R6, R7 or   <IMAGE> taken together contain 5-, 6- or 7- members in the heterocyclic ring, the ring being pyrrolidine, piperidine, morpholine, thiamorpholine, piperazine or homo-piperazine, and steroisomers thereof or Y is   <IMAGE> which represents a 5-or 6-membered N-containing heterocyclic wherein R<8> is hydrogen or lower alkyl. These compounds are intermediates used in preparing compounds described in Patent Application No. 32268/ 78 Serial No. 2005247.
Patent GB-2047621-A (GB)
Title: Improvement in or relating to conveyor belts
IPC: B65G15/36
Filed: 1980-03-28
Abstract: A conveyor belt (1) made of elastomeric material having embedded therein a longitudinally extending load carrying insert (2) and transversely extending cord bunches (3). The cord bunches (3) are spaced relative to one another in the longitudinal direction of the belt (1) and prevent any split in the belt (1) extending longitudinally along the length of the belt (1). Each cord (4) of a cord bunch (3) is formed from a plurality of twisted yarns (12) which are spaced apart to present an undulating surface thereby facilitating the penetration of the elastomeric material of the belt into the interstices between the yarns (12) and improving the anchorage of the cord (4) in the belt. The yarns (12) preferably have a high degree of twist so that the cords (4) are extensible to allow troughing of the belt (1) when carrying material.   <IMAGE>
Patent GB-2053842-A (GB)
Title: Bucket-wheel unloaders especially for ships
IPC: B63B27/22
Filed: 1980-06-02
Abstract: A bucket-wheel unloader mounted on board a ship comprises a rail- mounted carrier (2) movable along the length of a cargo hold (H). A luffing boom (6) is pivoted at one end on the carriage and the opposite end of the boom carries a bucket wheel (12) disposed transversely of the boom with its diameter extending almost across the width of the hold. The boom is adjustable to hold the bucket wheel at a controlled depth in the hold and as the carriage moves along the hold the rotating bucket wheel picks up material and transfers it to a conveyor (16) extending along the boom. A cross- conveyor (18) adjacent the boom pivot (8) transfers the material from the boom conveyor to a fixed ships-side conveyor. The unloader can be operated in either direction of movement of the carriage. <IMAGE>
Patent GB-2085263-A (GB)
Title: Microphones
IPC: H04R1/08
Filed: 1980-07-01
Abstract: A microphone windshield has a longitudinal slot which enables a microphone cradle carried by a pistol grip to be inserted into and removed from the windshield without completely disassembling the cradle from the grip. The operation is performed after loosening clamping bolts or quick release spring clamps. The microphone may be carried by the cradle during insertion into and removal from the windshield. <IMAGE>
Patent GB-2053354-A (GB)
Title: Diesel fuel supply system
IPC: F02M31/16
Filed: 1980-07-14
Abstract: A mixing valve 30 includes a housing provided with a plurality of flow passages therethrough. A thermally responsive valve member 84 is located in a main passage 80 interconnecting a fuel supply line 28 from a fuel tank and a fuel supply conduit 38 leading via a filter to the fuel pump and injectors of the diesel engine. The valve member 84 opens at low temperatures to permit unused fuel which has been heated by the engine and which flows back from the injectors to the valve 30 via a return conduit 62 to pass via a passage 96 to mix with the fuel flowing through the passage 80 towards the filter. The fuel passing through the filter is thereby kept warm enough to avoid clogging of the filter with ice crystals and wax. A float valve member 104, 106 prevents air which flows from the injectors with the unused fuel from mixing with the fuel from the tank. <IMAGE>
Patent GB-2082286-A (GB)
Title: Drive Shaft Coupling
IPC: F16D1/076
Filed: 1980-08-22
Abstract: A brake drum type coupling adapted to be connected into the drive between a prime mover and a driven unit includes a spacer member 7 adapted to form part of the drive. The length of the spacer member 7 is greater than the width of the brake drum 12 and the spacer member 7 is removable without disturbing the prime mover and the driven unit. Thus the brake drum 12 can be removed by passing it through the space created by removal of the spacer member 7. <IMAGE>
Patent GB-2086073-A (GB)
Title: Electro-optical terminations
IPC: G02B6/42
Filed: 1980-10-16
Abstract: An electro-optical termination is provided to terminate a fibre optic bundle 1 of individual optical fibres 3. Each termination includes electro- optical converter devices 8 which either receive optical information via the optical fibres 1 and convert them into electrical signals, or the devices receive electrical signals and convert them into optical form for transmission along the optical fibres. The converter devices 8 are mounted within a hermetically sealed enclosure 20 and are arranged to transmit or receive optical signals via a faceplate 6, which forms part of the wall of the enclosure. The ends of the individual optical fibres 1 terminate in apertures which pass through a rigid plate 2. The construction ensures that the optical fibres 1 are aligned with the converter devices 8, whilst also ensuring adequate protection for the devices themselves. In this way a large number of individual fibres can be coupled to corresponding converter devices. <IMAGE>
Patent GB-2077657-A (GB)
Title: Rubbery polymers
IPC: B29C37/00
Filed: 1980-11-24
Abstract: Rubbery polymers have embedded in a surface a fabric layer 16 of cords 12 and fibres 13 (arranged in groups 14 and separated by intervals 15) partially projecting above the surface. This has low adhesion to unvulcanised rubbery polymers, and so is suitable for use of inflatable bladders for turning ply ends over bead rings on tires building machine mandrels. <IMAGE>
Patent GB-2067692-A (GB)
Title: Improvements in disc brakes for vehicles
IPC: F16D55/14
Filed: 1980-12-08
Abstract: In a self-energising spreading type of disc brake application of the brake being initiated by angular movement of pressure plates in opposite directions, the pressure plates then moving apart into engagement with friction discs which are urged into engagement with opposed radial surfaces in a stationary housing, the angular movement is effected hydraulically by an actuator comprising a piston (8) working in a bore (7) of a cylinder (5), the axis of which is substantially at right angles to that of the brake. The piston (8) acts through a part-spherical rocking thrust coupling associated with a pull- rod (24) passing through the actuator with a substantial clearance, the inner end of the pull-rod (24) being pivotally coupled to the junction (15) of a pair of toggle links (16, 17) connected between lugs on the pressure plates. The outer end of the pull-rod (24) is connected via a trunnion 18, a crank 19, a lever 21 to a transmission member (31a) connected to means for applying the brake mechanically. A thrust member (12) is disposed between the piston (8) and the spherical rocking coupling and is engageable with a thrust transmitting force on the piston (8) for sliding movement in a transverse direction with respect to the axis of the cylinder (5) to accommodate angular movement of the pull-rod (24) when the brake is applied. Collar (13) forming the coupling may engage or be formed as one piece with a tube (22) for thrust transmission therethrough. <IMAGE>
Patent GB-2066306-A (GB)
Title: Spinning threads
IPC: D01H7/90
Filed: 1980-12-19
Abstract: A system for spinning thread from non-continuous fibres 1 comprising imparting a first twist stage to the thread by means of an open- end spinning head 2 and then imparting a second stage twist to the thread by means of a device 6, 7, 8 similar to that used in a ring spinning process. The resulting thread has the regularity and uniformity of open-end spun thread and high breaking strength of ring spun thread. <IMAGE>