baber/WOPTO huggingface dataset:
Patent GB-1074177-A (GB)
Title: Arpeggio device
IPC: G10H1/32
Filed: 1965-11-29
Abstract: 1,074,177. Arpeggio devices. HAMMOND ORGAN CO. Nov. 29, 1965 [Dec. 3, 1964], No. 50586/65. Heading G5J. In an electric organ notes constituting an arpeggio can be sounded rapidly under the control of an arpeggio keyboard only when a related note is played on the main keyboard. The arpeggio keyboard consists of miniature keys which may be sounded in rapid succession, and attached adjacent the main keyboard. Fig.7 shows contacts 50, each associated with one of the keys of the arpeggio keyboard, while contacts 52 are auxiliary contacts on the keys of the main keyboard. Operation of main keys, e.g. CEG, prepares the circuits of corresponding notes on the arpeggio keyboard, so that sweeping a finger rapidly over the arpeggio keyboard sounds all the notes CEG in succession. Different relations between the arpeggio keys and the main keys are possible. One of the keys of the arpeggio keyboard (described with reference to Fig. 6, not shown) consists of an inclined member carrying a finger-piece; a contact beneath the inclined member contacting one of several parallel bus-bars 48 located beneath the keys. The notes may be produced by solenoid-operated members striking chine bars.
Patent GB-1040350-A (GB)
Title: Production of foamed materials
Inventor: SEDDON JOHN DAVID
IPC: C08J9/02
Filed: 1964-12-14
Abstract: Foamed polymeric materials are prepared by heating a copolymer formed from monomeric material comprising a mixture of at least 70 mole per cent of a vinylidene halide and up to 30 mole per cent of an alkyl ester of an a -substituted a -b  unsaturated carboxylic acid polymerizable therewith, to a temperature which is chosen to be above the boiling point of the alkyl halide liberated by the reaction and at least 90 DEG  C. The heating preferably takes place under pressure, which is released at a temperature above the softening point of the copolymer to form a foam, e.g. at 120 DEG  to 170 DEG C.  The pressure may be generated by the alkyl halide itself by heating in a pressure-tight system.  The preferred copolymer is one of vinylidene chloride and methyl methacrylate.  On heating the polymer, a reaction takes place between adjacent chloride and ester groups, g -butyrolactone groups being formed.  An additional blowing agent, e.g. a volatile halogenated hydrocarbon or azobisisobutyronitrile may be used, particularly when the copolymer contains less than 15% of ester groups.
Patent GB-1036020-A (GB)
Title: A process for the construction of supporting structures of reinforced concrete with prefabricated columns and beams
IPC: E04B1/21
Filed: 1963-12-31
Abstract: 1,036,020. Moulding plastic substances &c. L. B. GABURRI. Dec. 31, 1963 [Jan. 9, 1963], No. 51256/63. Heading B5A. [Also in Division E1] Hollow reinforced concrete columns are moulded in a three-sided mould, the lower plate 1 being flat, curved, castellated or V-sectioned (as shown), and the side plates 2 and 3 being flat or grooved (as shown, or as in Figs. 10d- 10g, not shown). The core is formed by side plates 8 and 8<SP>1</SP> and opposed channel-sectioned plates 9 and 9<SP>1</SP> held apart by a parallelogram device (Fig. 6) operated via a tube 14 at one end, to move the channels 10 and 10<SP>1</SP> with respect to each other. It can be locked in the extended position by a key 18 (Fig. 9, not shown), passing through holes 17. The plates 8, 8<SP>1</SP>, 9 and 9<SP>1</SP> are covered by a permeable fabric sleeve 19 impregnated with oil and soap prior to the introduction of the core into the mould, where it is supported by stop-ends 6 (Fig. 12, not shown) outside the annular stop-ends 50 (Fig. 11, not shown), which can be clipped into different positions along the mould. L-sectioned concrete beams are cast using a mould with a vertically adjustable interior side wall, to allow the reinforcement to project sideways out of the beam, and the parallelogram device described above may be employed to give varying depths to the webs of T-beams cast in a single mould (Fig. 17, not shown).
Patent GB-1087455-A (GB)
Title: Computing system
IPC: G06F7/52
Filed: 1964-12-18
Abstract: 1,087,455. Arithmetic unit. JESEY PRODUCTION RESEARCH CO. Dec. 18, 1964 [Jan. 16, 1964], No. 51599/64. Heading G4A. In a multiplication unit for a computer, to multiply two binary coded decimal numbers the digits of the multiplier are reversed in order and the L.S.D. (least significant digit) aligned with the L.S.D. of the multiplicand, the two aligned digits being " multiplied " to give the first or L.S.D. of the desired product of the numbers. The multiplier is then left-shifted one digit position and each pair of the then two pairs of aligned digits of the multiplier and multiplicand are " multiplied " and the products added to give the second digit the desired product, together with a carry, if present. This process is continued, with the multiplier continually left-shifted, the eventual set of digits produced constituting the product of the multiplier and multiplicand. When performing the complete operation above, the multiplicand is entered, serially or in parallel, into a register B (Fig. 1), while the multiplier is entered serially into register A, the latter number being entered from the right, i.e. in reverse order. In each bit-time aligned digits of the two numbers are " multiplied " using AND gates 62, 64, 66, 68 and the products added by full adders 72, 76, 80, 84, each digit output of adder 84 being entered serially, via a time delay, into a product register P. The above process is continued after the register A has accepted the complete multiplier, by leftshifting the latter within the register, and at each stage of the complete process each carry produced by the full adders in one bit time is fed through a time delay 74, 78, 82 or 86 for use in the next following bit time. Flip-flop 46, 52 are also incorporated in the apparatus for providing corrections to the final product when either or both of the numbers to be multiplied are negative, such negative numbers being entered in the registers A, B in 2's complement form.
Patent GB-1483130-A (GB)
Title: Universal joints
IPC: F16D3/226
Filed: 1975-12-18
Abstract: 1483130 Universal joints LOHR & BROMKAMP GmbH 18 Dec 1975 [23 Dec 1974] 51770/75 Heading F2U  In a constant-velocity ratio universal joint having torque-transmitting balls 1 engaged in grooves 12 within an outer joint member 2a and in grooves 13 around an inner joint member 3a, and having a ball cage 4a which retains the balls in a plane bisecting the included angle between the axes of the outer and inner joint members, the cage 4a is guided into this position by at least three rolling members 6, constituting alignment control means, which are carried in grooves 7a around the inner joint member 3a and which engage a concave part-spherical inner surface of the cage 4a, while a convex part-spherical outer surface of cage 4a slidingly engages the inner surface of the outer joint member 2a, the part-spherical inner and outer cage surfaces having centres of curvature, E, F, respectively, which lie on opposite sides of the plane containing the centres of balls 1, and the alignment control rolling members 6 are disposed on the centre E of the concave curvature and are arranged to lie between the grooves carrying the balls 1. The rolling members 6 may be of barrel-shaped form as shown in Fig. 2, or cylindrical with bevelled ends, Fig. 7 (not shown), or may be spherical, Figs. 4, 6 (not shown). Relative axial motion of the joint members is permitted by the cylindrical inner surface of the outer member 2a, Fig. 2. Alternarively, that surface may be part-spherical, and the inner member (3b) may have a cylindrical outer face, Figs. 3, 4 (not shown). In further embodiments, both surfaces are spherical, permitting no axial travel, and also the rolling members 6 may be retained against axial motion by modified shapes of their grooves.
Patent GB-1412659-A (GB)
Title: Valves
IPC: F15B13/01
Filed: 1973-11-08
Abstract: 1412659 Valves BERINGER-HYDRAULIK GmbH 8 Nov 1973 [9 Nov 1972] 51846/73 Heading F2V A valve assembly 1 for load-independent control of the speed of travel in one direction of a piston and cylinder power unit 18, comprises a main valve member 5 controlling fluid between an inlet 2 and an outlet 3, an auxiliary valve 14 located in a bore 13 in the main valve and an actuating piston 8. In the hydraulic system shown, movement of a control valve 19 to the right causes the unit 18 to be supplied with fluid from a pump 20 via line 23 and a non- return valve 24 bypassing the valve assembly 1, and to return fluid via line 22 to thereby raise the piston of the unit 18. Movement of the valve 19 to the left reverses the connections to the unit so that the return flow must pass through the valve assembly 1. Initially the valve member 5 is closed as shown and inlet fluid passes along a groove 15 into a chamber 16 to assist a spring 10 in holding the valve member 5 closed. However, the pressure in line 22 connected to the pump gradually builds up until, acting through line 25 and a damping restrictor 27, it forces piston 8 upwardly to thereby open the auxiliary valve 14. This relieves the pressure in chamber 16, whereafter further upward movement of the piston 8 causes the latter to abut the valve member 5 and lift it off seating 6 to permit return flow from the unit 18. The member 5 has tapered grooves 30 which provide a progressive increase in flow with opening movement thereof. The member only moves an amount sufficient forforce of the fluid acting on the piston to be balanced by the force of the spring 10 and therefore responds, correctively, to any change in flow in the line 22 and thus to any change in the speed of downward travel of the piston in unit 18, the desired speed being set by the control valve 19. Two valve assemblies 1 may be arranged in a single housing for use with a power unit in which the applied forces change their direction, e.g. for moving an arm swinging in a vertical plane through a dead centre position.
Patent GB-1245258-A (GB)
Title: Spooling arrangement for filaments and apparatus for spinning filaments and including the spooling arrangement
Inventor: LENORAK FERDINAND
IPC: B65H54/54
Filed: 1968-11-01
Abstract: 1,245,258. Winding spindles. CHEMICKE ZAVODY JURAJA DIMITROVA NARODN1 PODNIK. 1 Nov., 1968, No. 51874/68. Heading D1J. [Also in Division F2] A core, Figs. 2 and 3, on which filaments 18 can be wound comprises a central shaft (14), a bush (15) secured to the central shaft (14), a sleeve (8) slideable along and guided by the bush (15), a handle (7) attached to the sleeve for manual movement thereof, wedges (10) disposed circumferentially about the sleeve (8) and having oblique surfaces (13) inclined to the direction of movement of the sleeve along the bush and engageable by pins (9) fixed to the sleeve (8), shoes (11) also disposed circumferentially about the sleeve (8) in alternate relation to the wedges (10), and end members (16) secured to the central shaft (14) and having radial slots (17) Fig. 4 (not shown) for guiding the shoes (11). The end members (16) also serve to limit the amount of movement of the sleeve (8) along the bush (15). Ring-shaped resilient members (12) urge the shoes radially inwards. The arrangement is such that when the sleeve (8) is moved along the bush (15) into one end position the pins (9) cooperate withthe oblique surfaces (13) to move the wedges (10) radially outwards and thereby move the shoes (11) radially outwards to positions where the outer surfaces of the wedges (10) and the shoes (11) together form a continuous cylindrical surface on which a cake of filament can be wound, and when the sleeve (8) is moved along the bush (15) towards the other end position the shoes (11) are permitted to be moved radially inwards by the ring-shaped resilient members (12) whereby the cake can be doffed.
Patent GB-1219799-A (GB)
Title: Fuel regulating system for gas turbine propulsion units
Inventor: JURISCH WILHELM
Filed: 1968-11-01
Abstract: 1,219,799. Gas turbine engine fuel systems. DAIMLER-BENZ A.G. Nov. 1, 1968, No.51898/68. Addition to 919, 542. Heading F1G. The fuel control of a gas turbine engine comprises a hydraulically operated fuel regulating device having acceleration and retardation limiting devices and acted upon by a pressure responsive capsule stack located in a chamber communicating via a restrictor with the compressor, communication of the chamber with a region of lower pressure being controlled by three outlet valves respectively controlled by turbine exhaust gas temperature, a turbine speed-limiting governor and a turbine torque-limiting regulator. The fuel flow is controlled by the throttle valve described in parent Specification, operated by a hydraulic servomotor having means for limiting acceleration and retardation, the servomotor being controlled by a capsule stack 15 subjected, in a chamber 14, to the pressure prevailing downstream of a restrictor 17 in a pipe 16 connected to the discharge side of the compressor. The pipe 16 can be vented downstream of the restrictor 17 by any of three blow-off valves 21, 31, 43 so as to reduce the air-pressure acting on the capsule stack 15 and thereby reduce the fuel supply. Valve 21 is opened by a centrifugal governor 20 in the event of overspeed of the load turbine. Valve 43 is opened if the turbine exhaust temperature, sensed by a thermometer 42, becomes excessive. Valve 31, which is opened if the torque produced by the load turbine becomes excessive, is operated by a device 30 which is arranged to move to the right as the torque increases. A further valve 34, acted on by the device 30 in opposition to a capsule stack 33, acts in conjunction with a restrictor 36 in a pressure oil supply pipe 35a to control the oil pressure acting, in a chamber 32, on the capsule stack. The pressure in the chamber 32 is conveyed via a pipe 37 to an instrument which indicates the torque.
Patent GB-1299709-A (GB)
Title: Glass bending method and apparatus
IPC: C03B23/031
Filed: 1970-11-02
Abstract: 1299709 Bending glass sheets LIBBEY-OWENS-FORD CO 2 Nov 1970 [5 Nov 1969] 51957/70 Heading C1M In the bending of glass sheets S, the sheet S, heated in a furnace B is supported on a conveyer C for movement along a horizontal plane on to a pivotal section D which swings downwardly to a substnatially vertical plane where the sheet S is engaged by bending means E, F for shaping the sheet. The section D then swings upwardly and the bent sheet continues out of the bending apparatus A in the horizontal plane to a tempering or annealing lehr. Supported on a framework 10, conveyer C has a fixed initial section 28 with rolls 32 journalled in bearings 34 on a support member 35, a similar fixed section 29 with rolls 40 on support 42 and the pivoted section D with rolls 46 journalled in bearings 47 on a frame 48 consisting of bars 49, 50, 51. The rolls 32 and 46 are driven from motor 70 and rolls 40 from motor 75. The end bar 51 of section D is fixed to levers 53 mounted by stub axels (55) for swinging movement about bearings (56) secured on the bars 11 (12) of framework 10. A bar 57 interconnects levers 53 and a central lug 58 is operatively connected to a clevis 60 at the end of piston-rod 61 of pressure cylinder 62. Downward movement of section D is initiated by the leading edge of sheet S interrupting a photoelectric beam 66 and the edge is stopped and aligned by locator stops 67 movable into and out of position by pressure cylinder 68. Bending mould members E, F are supported for movement towards and away from each other, along a path at a slight angle to the horizontal, on a frame 80, each member being separately movable along guide rods 85. Member E is mounted on upstanding wall 88 of a carriage 90 having tubular elements 91 mounted on rods 85, the carriage 90 being moved up and back by a pressure cylinder 108, the piston-rod of which is secured to a clevis 110 on a bracket secured to carriage 90. Similarly member F is mounted on wall 119 of carriage 120, with elements 122 sliding on rods 85 and movement being from a pressure cylinder 128, the piston-rod 127 of which is secured to a crossbar 124. The mould member E is an outline mould with upper and lower flat edged walls 98 and side walls 101 with edges curved to give shaping surface 104. Slots 105 in walls 101 allow movement over the rolls 46 of support section D. Support tabs 135 receive the sheet S from stops 67. The mould member F is a rigid hollow casting 115 with a curved wall 116, covered as by glass cloth, to shape sheet S and engage the shaping surface 104.
Patent GB-1500928-A (GB)
Title: Forming of articles from aluminium oxyhydrate
IPC: C01F7/025
Filed: 1975-12-18
Abstract: 1500928 Alumina shapes CONDEA PETROCHEMIE GmbH 18 Dec 1975 [21 Dec 1974] 51959/75 Heading C1A Aluminium oxyhydrate is peptized with an acid and subsequently mixed into a paste with an aqueous solution of ammonia or ammonia-releasing compound, the paste formed into a shape, dried and calcined.
Patent GB-1426193-A (GB)
Title: Vehicle suspension
IPC: B62D55/112
Filed: 1973-11-09
Abstract: 1426193 Hydropneumatic suspension units FRIESKE & HOEPFNER GmbH 9 Nov 1973 [11 Nov 1972] 52238/73 Heading F2S A hydropneumatic suspension unit has a main gas cushion 2 loaded by a piston 5 and hydraulic fluid 1; a second gas cushion 4; a connection 14, 15 between the cushions 2, 4 via a stop valve 8, 9; a control device 12 operating the stop valve 8, 9 and including a pressure sensitive element 13 exposed on the one side directly to the main gas cushion 2 and on the other side to a control chamber 16 which is in fluid communication with the main gas cushion via a restrictor 17.  The embodiment shows the pressure sensitive element 13 as a piston, with the restrictor 17 in the form of clearance around the piston. The clearance may be replaced or assisted by a needle valve 18. In operation, the valve assembly 7 connects the cushions 2 and 4 following impact on the piston-rod 6 after a time delay determined by pressure leakage across the piston 13, and similarly during rebound after a similar time delay.
Patent GB-1120645-A (GB)
Title: Continuous solution-polymerization of acrylonitrile
IPC: C08F20/44
Filed: 1965-12-09
Abstract: Acrylonitrile or a monomer mixture comprising at least 85% by weight of acrylonitrile is polymerized in an aqueous saline solvent containing at least 55% by weight of ZnCl2, or of a mixture of ZnCl2 and an alkali metal or alkaline earth metal chloride, by continuously feeding the monomer solution and a polymerization initiator solution to a first reactor at such a rate that the monomer conversion therein is not lower than 60% and not higher than 85%; transferring the partially polymerized material to at least one further reactor and carrying out the polymerization in the latter or last reactor so that the conversion reaches at least 92%, wherein the polymerization temperature in any reactor is not lower than 35 DEG  C. and not higher than 65 DEG  C.  Specified comonomers are (meth)acrylic acid, methyl (meth)acrylate, acrylamide, vinyl acetate, alkali metal and alkaline earth metal salts of (meth)allyl sulphonic acid, styrene sulphonates and basic vinyl monomers, e.g. vinyl pyridine and vinyl imidazoles.  The chloride other than ZnCl2 may be NaCl, MgCl2 or CaCl2 or mixtures thereof.  Initiators specified are H2O2, inorganic persulphates, chlorates or perchlorates, peracetic acid, benzoyl peroxide and Redox systems in which the reducing agent is, e.g., a sulphite, metasulphite, thiosulphite or hydrazine.  In the examples, acrylonitrile is copolymerized with methyl acrylate and sodium allylsulphonate in aqueous ZnCl2 solution using as initiator (1) H2O2, (2) ammonium persulphate, (3) sodium persulphate and sodium pyrosulphite and (4) ammonium persulphate and sodium pyrosulphite.
Patent GB-1276000-A (GB)
Title: Atomizer wheel with wear-resistant, sintered ejector nozzles for the atomization of slurries of highly abrasive materials
IPC: B05B3/02
Filed: 1969-10-27
Abstract: 1276000 Atomising abrasive slurries NIRO ATOMIZER AS 27 Oct 1969 [5 Nov 1968] 52617/69 Heading B2F A bowl shaped wheel for use in apparatus for atomizing and spray-drying an abrasive slurry, e.g. of ceramic clay, wherein the slurry, supplied to the wheel rotating at high speed, is atomized through apertures in the wall thereof into the drying space, comprises a hub 1 and an outer wall 3, the slurry being supplied to the annular space 2 therebetween. The wall 3 has cylindrical apertures therein and in each aperture is relatively loosely located a bushing 8 of steel or plastics material, the bushing having an external shoulder 9 which engages an internal shoulder 10 of the aperture. In the conical bore of the bushing is disposed an externally conical nozzle 7 of wear resistant material such as tungsten or silicon carbide. When the bushing is of plastics material it may be hot-moulded around the nozzle and interengaging shapes other than conical may be used. The loose fit of the bushing prevents deformation of aperture circularity which occurs at high rotational speed being transmitted to the nozzle. The inner ends of the bushing and nozzle project beyond the inner surface of the wall 3, a protective build-up of solid material around the bushing occurring in operation.
Patent GB-1484677-A (GB)
Title: Preventing agglomeration of particles dispersed in hydrocarbon
IPC: F17D1/16
Filed: 1974-12-05
Abstract: 1484677 Rendering waxy oils transportable MARATHON OIL CO 5 Dec 1974 [4 Jan 1974] 52708/74 Heading C5E Pumpable hydrocarbon slurries are produced from waxy crude oils by fractionation (e.g. distillation) to produce a low pour point fraction and a high pour point fraction, congealing at least a portion of the high pour point fraction into particles and dispersing the particles in the low pour point fraction; 1-10,000 ppm (based on the weight of the slurry) of a polymer of average molecular weight at least 5000 is added to the low pour point fraction before or after the congealed particles are dispersed therein. The polymer is preferably a polysaccharide or a modified polysaccharide having saturated aliphatic hydrocarbon chains of at least 15 carbon atoms; other suitable polymers are polydimethyl siloxanes, polyisobutylene, ethylenepropylene copolymers and ethylene-vinyl fatty acid copolymers. A diluent (such as a non- waxy crude oil, straight-run gasoline, reservoir condensate or crude oil fraction) and/or a gas (such as carbon dioxide or a hydrocarbon having less than four carbon atoms) can be incorporated in the slurry to reduce its viscosity. Surfactants, e.g. sorbitan monolaurate or sodium petroleum sulphonate, and bactericides can be incorporated in the high pour point fraction prior to congelation.
Patent GB-1409258-A (GB)
Title: Biconstituent polymer compositions and textile articles formed  therefrom
IPC: C08F8/00
Filed: 1972-11-15
Abstract: 1409258 Acrylonitrile / polyamide fibres WOON WAI TSE 15 Nov 1972 52795/72 Heading B5B [Also in Division C3] Filaments or fibres are spun from a solution of a polymer composition which comprises an acrylonitrile polymer or copolymer containing at least 70% by weight of acrylonitrile units in admixture with an aromatic polyamide containing recurring units of the formula where Ar 1  and Ar 2  are the same or different, substituted or unsubstituted, divalent aromatic radicals. The acrylonitrile polymer may contain comonomer units such as units of vinyl acetate, methylacrylate, vinylpyridine and ethylenesulphonic acid. The polyamide preferably consists entirely of the units of the above formula and may be, for example, poly-m-phenylene isophthalamide. The solvent for the spinning solution may be, for example, dimethylformamide and a solubility promoter such as lithium chloride may optionally also be present. After spinning, the filaments or fibres are suitably submitted to washing, drawing and heat setting processes. Drawing is preferably effected to at least 2 times the original length in a steam, hot water or other hot atmosphere, or in contact with a heated surface.