baber/WOPTO huggingface dataset:
Patent GB-1490218-A (GB)
Title: Linear induction motors
IPC: B60L13/04
Filed: 1974-09-24
Abstract: 1490218 Linear induction motors NATIONAL RESEARCH DEVELOPMENT CORP 11 Sept 1975 [24 Sept 1974] 41421/74 Heading H2A A primary member for a linear induction motor has an elongate magnetic core assembly having energizing windings 26, 28, Fig. 1, thereon and having longitudinally spaced sets of four laterally adjacent pole faces, all of said pole faces being co-planar, the core assembly being arranged to provide paths for working flux between each pole face and all three other pole faces in the same set, said paths being in planes transverse to the length of the core assembly and substantially perpendicular to the plane containing the pole faces. The primary member may comprise core portions 10, Fig. 1, each formed by a stack of transverse laminations having four laterally spaced limbs 18, 20, 22, 24 forming at their one ends one set of four pole faces and being connected at their other ends by a backing part 16, the windings 26, 28 being only on the inner limbs 18, 20. An alternative primary member, Fig. 4, comprises a stack 54 of U-shaped transverse laminations 60, the limbs of which provide the outer two pole faces of each set, the inner two pole faces of the sets being provided by two stacks 56, 58 of longitudinally extending laminations providing longitudinal flux paths in addition to the transverse paths, the windings 72, 74 being received in slots in stacks 56, 58. A secondary member provides longitudinal paths for electric current on each side of at least the two inner pole faces of each set and transverse paths for electric current interconnecting the longitudinal paths. The secondary may be a sheet 30, Fig. 1, of electrically conductive non-magnetic material of equal width to the primary core assembly, or an electrically conductive sheet 50, Fig. 4, which is wider than the core assembly and carries on its face remote from the primary a magnetic sheet 52 of equal width to the primary core assembly. The magnetic material of the secondary may alternatively be formed by laminations in transverse planes. In a secondary including magnetic material, the side parts of the conductive sheet may be bent around to enclose the edges of the magnetic material in U-shaped channels, Fig. 3 (not shown). Energization of the windings from a plural phase A.C. supply levitates and longitudinally drives either one of the primary and secondary members relative to the other and produces forces to maintain these members in lateral alignment with each other.
Patent GB-1197576-A (GB)
Title: Improvements relating to Floor Decks
Inventor: DEAL PETER EDWARD
IPC: E04B5/10
Filed: 1967-11-12
Abstract: 1,197,576. Roof and floor panels. RICHARD THOMAS & BALDWINS Ltd. 12 Feb., 1969 [12 Nov., 1967], No. 41530/67. Heading E1W. A floor or roof deck comprises a framework of horizontal steel beams 5, 6 with steel lugs 10 projecting from the side-edges of the framework such that when two similar decks are laid sideby-side the lugs of the abutting side-edges engage above or below a rigid part of the frame work, e.g. side beam 5, of the other deck. As shown, recesses are provided in the ceiling board 8 beneath the side-edge beam 5 to accommodate lugs of an adjacent deck and a flange 9 welded to end beams 4 is adapted to rest on a supporting structure.
Patent GB-866661-A (GB)
Title: Axial piston swash type pump
IPC: F04B1/32
Filed: 1959-12-07
Abstract: 866,661. Swash-plate pumps. BENDIX CORPORATION. Dec. 7, 1959 [Dec. 5, 1958], No. 41556/59. Class 102(1). In a rotating cylinder block swash-plate pump the swash-plate E, Fig. 3, is carried by an end wall of the pump housing through a pair of spaced ball-shaped trunnion members G1, G2. The member G1 is located in a fixed bearing block 106 and may be lubricated by a passage 112 while the member G2 is located in a bearing block 108 which is adjustable axial of the pump to ensure correct initial location of the swash-plate. The angle of the swash-plate is varied in accordance with the delivery pressure. The swash-plate is connected by a member 78, Fig. 1, to a piston 72 which is moved by liquid admitted to a cylinder 74 when the delivery in the outlet 54 fed through passage 82 moves a spring loaded valve member 92 to open a passage 90. When the delivery is subsequently reduced the valve 92 moves to the left and liquid in cylinder 74 escapes through passage 104. The valve plate is provided with the usual kidney shaped ports and a bleed groove is provided leading in to the discharge port to throttle any surge of pressure at the beginning of the discharge stroke of the pistons.
Patent GB-1128621-A (GB)
Title: Improvements in or relating to apparatus for cutting veneers and methods of manufacturing veneered sheets
IPC: B27L5/00
Filed: 1964-10-14
Abstract: 1,128,621. Cutting veneers. T. T. BOUGHTON & SONS Ltd., and H. G. BROWNSELL. 18 Oct., 1965 [14 Oct., 1964], No. 41844/64. Heading B3T. [Also in Division B5] In a method of making veneered sheet, veneer is cut from a substantially cylindrical rotatable wooden body by a straight cutter which is inclined towards the axis of rotation of the wooden body, the cut veneer is divided into lengths which form a circle when flattened out, the lengths then being bonded to a sheet of wood or other material. The wooden body 6 is supported by a chuck 4 for rotation about its longitudinal axis and the cutter 19 which is carried in a block 10 and mounted on a carriage 2 is axially movable relative to the wooden body by ram means 5 so that the veneer is peeled from the body along a conical surface. A liquid is supplied to the cutter and/or the surface of the body as a lubricant to reduce friction between the cutter and body. The liquid may be water but preferably is a dye or glue to assist in subsequent processing of the veneered sheets. Alternative forms of cutter blocks are described (Figs. 3, 4 and 5, not shown) in which the wooden body is supported by rollers mounted within the block.
Patent GB-1356565-A (GB)
Title: Limitting exhaust smoke emission from i c engines
IPC: F02D1/00
Filed: 1970-09-04
Abstract: 1356565 Regulating I C engine fuel supply RICARDO & CO ENGS (1927) Ltd and J D DAVIS 3 Sept 1971 [4 Sept 1970] 42487/70 Heading F1B The maximum delivery position of the control rack 36 of a fuel injection pump 37 of a diesel engine 10 is controlled by a device 12 measuring the smoke density of the exhaust. The device 12 provides an output signal which operates an electro-hydraulic, electro-mechanical or electropneumatic control system which reduces the maximum fuel supply as the smoke density increases. The device 12 may be an electrode mounted in the downstream end of the exhaust pipe 11, Figs. 1 and 2 (not shown), or a diverging pipe (40), Figs. 5 and 6 (not shown), mounted to receive the exhaust gases from the pipe 11. The device is connected to an electronic amplifier 21 and a power amplifier 29 to actuate a three-way valve 30 which directs engine oil under pressure from a pump 31 to an hydraulic actuator 34 or  back to the engine crank-case. The plunger of the actuator 34 provides a maximum delivery stop for the rack 36.
Patent GB-1134755-A (GB)
Title: Refractory glass fiber
IPC: C03C13/00
Filed: 1966-09-23
Abstract: 1,134,755. Glass fibres. JOHNS-MANVILLE CORP. 23 Sept., 1966 [13 Oct., 1965], No. 42521/66. Heading C1M. Refractory glass fibres consist essentially of alumina, silica and chromic oxide wherein the ranges of ingredients by weight are: alumina 35-055%, silica 40-60%, chromic oxide 0À9- 8% and the ratio of Al 2 O 3 /SiO 2  is 0À62-1À2. Preferred ranges are 37-53% alumina, 46- 57% silica and 0À9-6% chromic oxide with an Al 2 O 3 /SiO 2  ratio of 0.69 to 0À95.
Patent GB-1055638-A (GB)
Title: Antistatic thermoplastics
Inventor: POHLEMANN HEINZ
IPC: C08K5/20
Filed: 1963-10-19
Abstract: 1,055,638. Thermoplastic polymers containing antistatic additives. BADISCHE ANILIN- & SODA FABRIK A.G. Oct. 29, 1963 [Nov. 2, 1962], No. 42556/63. Heading C3P. A thermoplastic addition polymer contains as antistatic additive a compound wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrocarbon radicals and X is -O- or > NH. Specified polymers are polyvinyl chloride, polyethylene, polypropylene and styrene polymers (optionally containing elastomer). In examples, the additives used are N-lauroyl-N<SP>1</SP>-dimethyltrimethylene diamine, (Beta-diethylaminoethyl) stearate, N - lauroyl - N<SP>1</SP> - diethyl - alphamethyltetramethylene diamine, the reaction product of montanic acid and N,N-dimethylaminopropylamine, N - oleoyl - N<SP>1</SP> - dimethyltrimethylene diamine, dibutylamino - isopropyl oenanthate and N-lauroyl-N<SP>1</SP>-dimethylamino-trimethylene diamine.
Patent GB-1462131-A (GB)
Title: Method of manufacturing an electrode for a gas and/or vapour discharge lamp
IPC: H01J9/02
Filed: 1974-10-01
Abstract: 1462131 Discharge lamp PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Oct 1974 [4 Oct 1973] 42601/74 Heading H1D [Also in Division B3] In a discharge lamp 1, to connect reliably a helical electrode 9 to a conductor 10 leading to the terminal 2 the conductor is made of metal of lower melting point than the electrode, so that on insertion of the end of the conductor into at least two of the turns, heating this region for a limited time to melt the outer region of the conductor allows the metal to flow between the turns. W for the electrode (m.p. 3410‹ C.) and Mo for the conductor 10 (m.p. 2610‹ C.) are suitable, heated to 2800‹ C. by, e.g., a hydrogen burner. The remote end of conductor pin 10 is subsequently welded to the lead-through conductor 6 passing through the alumina discharge tube 4 and its cap 5, with conductor 7 completing the circuit to the terminal cap.
Patent GB-1012073-A (GB)
Title: Finishing machine for carriageways
Inventor: HUTHER HEINRICH
IPC: E01C19/00
Filed: 1963-10-29
Abstract: 1,012,073. Roadway finishing machine. H. HARTMANN and E. HARTMANN [trading as HUTHER & CO.]. Oct. 29, 1963, No. 42613/63. Heading E1G. In a carriageway finishing machine the finishing gear such as the compacting beam 7 is suspended between the ends of swing arms 6 attached to the machine by a three point system. To minimize unevenness in the surface over which the tracks 1 travel, the swing arms 6 are pivotable about transverse axes 5 on a beam 4 tiltable and swivelable on a shaft 3 carried by a transverse balancing beam 2 connecting the centres of the line tracks 1. On straight runs, swivelling of the beam 4 may be restrained by springs 9 on each side of the machine.
Patent GB-1163031-A (GB)
Title: Improvements relating to Fin-Tube Panels.
IPC: F28F1/22
Filed: 1966-09-23
Abstract: 1,163,031. Tube walls; tubular heat exchange elements. FOSTER WHEELER CORP. 23 Sept., 1966 [23 Sept., 1965], No. 42636/66. Headings F4B and F4S. A tube wall comprises at least two parallel tubes 21, a main fin 23 between the or each two adjacent tubes and coplanar with the longitudinal axes of the tubes, and an end fin 26 including an inner section 27 connected to the main fin, a centre section 29 having outer edges which diverge to retain contact with the tubes, and an outer section 31 which provides a flat sealing surface between the tubes. Weld beads 33 secure the end fin to the main fin and to the tubes. The end fin has a thickness approximately half that of the main fin 23.
Patent GB-939181-A (GB)
Title: Gas lighter
IPC: F23Q2/52
Filed: 1959-12-17
Abstract: 939,181. Gas lighters. R. MOHR, and H. H. QUANDT. Dec. 17, 1959 [Dec. 20, 1958; March 3, 1959; Sept. 2, 1959], No. 42916/59. Class 75 (3). A gas lighter comprises a fuel container provided with a capillary gas channel the outlet end of which projects outside the container, an absorbent thread in the channel which has a constricted zone compressing the thread, means for igniting the gas leaving the outlet end and a closure means for the end. A part 2 secured to the metallic constricted capillary tube 1 housing the absorbent thread 6 screws into the fuel container 4. The tube 1 passes through a flexible membrane 17 and washer 19 sealing the bottom of the burner head. Depressing one end of a lever 30, which pivots in the lighter head part 24, and has a forked end engaging an annular groove 10 in the external body 5 of the burner head, lifts the body 5 from an internal body 12 which rises under gas pressure in the tube 1 to displace a flexible sealing disc 15 in the body 12 from the upper end of the tube 1 and allows the gas to escape into the chamber between the bodies 5 and 12 to a fine outlet aperture 11 where a spark from a flint 27 ignites it. A pin 8 in the tube above the conduction prevents gas collecting in the tube. The tube may have several pinched portions. The friction wheel 32 is mounted between two driving wheels 33 on the lever 30. A screw 36 at one end of the lever acts as a limiting stop. Specification 939,182 is referred to.
Patent GB-1276344-A (GB)
Title: Dynamic feedback amplifier
IPC: H03F1/34
Filed: 1969-08-29
Abstract: 1276344 Amplifiers; loud-speaker circuits SERVO-SOUND SA 29 Aug 1969 [29 Aug 1968] 43186/69 Headings H3T and H4J The invention relates to an amplifier 1, Fig. 4, with negative feedback over a bridge network 2, one arm of which comprises the impedance of a loud-speaker 3, the network being balanced at all frequencies when motion of the diaphragm of the loud-speaker 3 is prevented. The arrangement is intended to provide negative feedback only around the frequency f 0 , Fig. 3, of mechanical resonance of the loud-speaker diaphragm. In practice, unsatisfactory results occur because of subsidiary resonances at frequencies f 1 , f 2  at which the inductive reactance X 13  of the speech coil is equal and opposite to the reactive component X 14  of the motional impedance. To remove the effect of these resonances, according to the invention of low-pass filter 17, Figs. 4, 5, comprising two shunt capacitors 25, 26 is connected in the negative feedback path, being coupled to the output terminals of the bridge via an active element 18, e.g. a transistor. The low-pass filter 17 also includes a series capacitor 27 which reduces the feedback at very low frequencies. In addition, a low-frequency corrector circuit 24, which may comprise resistor 29 shunted by capacitor 28 is connected in a negative feedback path directly round the amplifier 1.
Patent GB-880664-A (GB)
Title: Improvements in or relating to filling a hollow element with liquid
IPC: B65B3/04
Filed: 1959-12-21
Abstract: 880,664. Filling containers. MEISSNER, F. O., and MEISSNER, O.A.M., [trading as MEISSNER KOHN, JOSEF.]. Dec. 21, 1959 [Dec. 20, 1958], No. 43387/59. Class 21. [Also in Groups XVIII and XXI] In a process for filling a container 1 with a predetermined amount of liquid phosphorus 2 the container is first filled with a covering liquid 3 e.g. of water having an electrical conductivity differing from that of the liquid phosphorus and then an electrode carrier 4 is introduced into the container and adjusted so that the terminals 52, 53 of two mutually insulated electrodes are located at the correct predetermined depth. While the electrode terminals 52, 53 are immersed in water a relay 50 in a circuit 5 including a direct current source 51 is energised and a switch 500 is actuated to operate a pump 60 which delivers liquid phosphorus free from air, from a storage container, not shown, through a pipe 6 to the container 1. Immediately the contacts 52, 53 are bridged by the rising liquid phosphorus the amplitude of the current in the circuit 5 is modified, or the circuit is broken, so that the relay 50 is de-energised and the pump 60 is switched off. The carrier 4, which has at least one electrode terminal 52 projecting slightly below its lower edge is adjustably mounted on a guide 40 having a scale, not shown. In a modification. Fig. 2 (not shown), the circuit 5 comprises a single electrode which is connected to one pole of the direct current source 51 the other pole being connected to the container. The Specification also describes a method of allowing the liquid phosphorus to solidify without cavitation.
Patent GB-1047095-A (GB)
Title: Preparation of melamine from cyanic acid
Inventor: BOHLER WALTER
Filed: 1964-10-23
Abstract: Gaseous cyanic acid is converted to melamine in a stream of ammonia at normal pressure and at a temperature of between 380 DEG  C. and 480 DEG  C. in the presence of a catalyst comprising a basic sulphate of the composition Al2O3.SO3, TiO.SO4, ZrO.SO4 or Fe2O3.SO3, or a mixture thereof.
Patent GB-1478560-A (GB)
Title: Pyridoxine derivatives and their preparation and use
IPC: C07F9/58
Filed: 1975-10-23
Abstract: The preparation of salts of pyridoxine-5'-phosphoric esters with amino acids of the general formula I <IMAGE> in which R is the hydroxymethyl, aminomethyl or formyl group and A is methylene or ethylene, is described. The process is based on the reaction of glutamic acid or aspartic acid with a corresponding pyridoxine-5'-phosphoric ester or particular metal salts thereof. The resulting products are used for the prophylaxis and therapy of metabolic disorders, especially for influencing the lipid and cholesterol balance.
Patent GB-1482810-A (GB)
Title: Dies for cross rolling machines
IPC: B21H1/18
Filed: 1974-10-08
Abstract: 1482810 Cross wedge rolling machines MITSUBISHI JUKOGYO KK 8 Oct 1974 [8 Oct 1973] 43565/74 Heading B3M A tapered die for a cross wedge rolling machine is shaped to produce a reduced diameter portion in a cylindrical workpiece, the thicknesses h 1 , h 2 , and h, Fig. 4(II), of the die progressively increasing over the intermediate region B<SP>1</SP> from the leading to the trailing end of the die. The die may be mounted on a platen or cylindrical roll and is used in co-operation with a similar die to roll a workpiece 3a, Fig. 4(I) to the shape 3e.
Patent GB-1430204-A (GB)
Title: Aqueous cleaning composition
IPC: C11D17/00
Filed: 1973-09-18
Abstract: 1430204 Aqueous cleaning compositions; aerosols S C JOHNSON & SON Inc 18 Sept 1973 43791/73 Headings C4X and C5D [Also in Division C3] Aqueous compositions suitable for cleaning floor coverings, carpets, curtains, wood panelling, clothing, cookware, automobiles, windows &c. have a minimum film-forming temperature of at least 30‹ C. and comprise from 1-50% by weight of a polymer having a glass transition temperature (Tg) of at least 35‹ C., except that when metal or a complex salt is present the polymer itself may have a lower Tg value provided the Tg value of the polymer-metal system is at least 35‹ C., the compositions forming a soil-adhering tacky film which, as a result of drying, fractures to form a removable residue. Such residue can be removed from a substrate by brushing or vacuum cleaning; no scrubbing or scouring being necessary. The polymer may be, for example, an acrylic polymer, polyester, polycarbonate, polyamide or polyolefin. Olefinically unsaturated monomers specified include acrylic acid, methacrylic acid, vinyl acetate, methyl acrylate, ethyl acrylate, n-butyl acrylate, n-hexyl acrylate, 2-ethyl hexyl acrylate, n-butyl methacrylate, 2-ethyl hexyl methacrylate, lauryl methacrylate, methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, cyclohexyl acrylate, styrene or acrylonitrile. The metal (or complex salt thereof) which is optionally included may be zinc, cadmium, copper, nickel, cobalt, zirconium, chromium, manganese or calcium. The composition may also include a detergent builder, e.g. tetrapotassium pyrophosphate, tetrasodium pyrophosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate or sodium metasilicate and an aerosol propellant, e.g. propane, butane, isobutane, n-pentane, dichlorodifluoroethane, trichlorotrifluoroethane, difluoroethane, tetrafluorethane, nitrous oxide, nitrogen or carbon dioxide. In examples the compositions contain various (meth)acrylic ester copolymers and in some cases also zinc ammonium carbonate and/or a builder selected from sodium citrate and tetrapotassium pyrophosphate. In Examples 21 and 22 ethanol is also present. In the last example the composition is in the form of an aerosol containing, as propellant, a mixture of dichlorotetrafluoroethane, isobutane and propane.
Patent GB-1486555-A (GB)
Title: Tea drying apparatus and method
IPC: A23F3/06
Filed: 1974-09-16
Abstract: 1486555 Drying tea B N SHEADER 16 Sept 1974 [19 Sept 1973] 43983/73 Heading F4G A tea drying apparatus comprises a plurality of perforate surfaces 5, 6, 7, means, e.g. a fan 8, for passing a current of air upwardly through each surface so that, in use, tea to be dried will be maintained by the currents of air in a fluidized state, means by which the tea, in use, is caused to travel across each perforate surface in turn and means, e.g. heaters 13, 14, 15, for heating each current of air and control means for maintaining the currents of air at different predetermined temperatures. The means by which the tea is caused to travel may comprise angled perforations in the surfaces and/or vibrators vibrating the surfaces (Figs. 3, 4, not shown). As shown the surfaces are at different levels but they may be at the same level and be separated by weirs (Fig. 2, not shown). The used gas passing through the outlet 17 may be recirculated after dehumidification thereof. The inlet 3 and outlet 4 of the apparatus are sealed by rotary members 20, 21. Agitators may be provided to assist in keeping the perforations free from clogging with tea.
Patent GB-1560658-A (GB)
Title: Magazine for storing electronic components
IPC: H05K13/00
Filed: 1976-10-22
Abstract: A magazine for storing electronic components comprising a magazine body and a cover, said magazine body having a plurality of longitudinal receiving grooves formed in parallel with one another on its upside, one end of each of said receiving grooves being open and the other end thereof being closed to prevent the received electronic components from falling out of the magazine, said cover being adapted to overspread the open end of the grooves and the upside of said magazine.
Patent GB-1087724-A (GB)
Title: Compact upright piano
IPC: G10C3/16
Filed: 1964-10-30
Abstract: 1,087,724. Pianofortes. W. S. FINHOLM. Oct. 30, 1964 [Aug.' 26, 1964], No.44452/64. Heading G5J. In a compact upright piano the wippens 21 are mounted below and rearwardly of the horizontal playing portions of angular keys 17 arranged on a keyboard 13 and hammers 28 are arranged to be operated by the wippens which receive a keying thrust from a depending portion 17c of the corresponding angular key and a counterweight 35 carried by the lower portion of each hammer, returns to rest on its respective depending key portion after a respective string - is struck and acts to return the associated hammer to a normal rest position, after release of the key. In operation as a key 17 is depressed, the vertical depending portion 17c of the key actuates wippen extension 24 via roller 19 and padded block 25 and causes the wippen 21 to trip. jack 23. across protuberance 25a and so drive hammer 2.8 into string 29. After striking, the hammer 28 returns to a position free of the string 29 and, an arched wire. 35. mounted in. butt 31 of the hammer contacts a check pad 17d on the lifted depending, portion 17c of key 17. When the key 17 is released the weight of the wire 35 causes hammer 28 to return to pad 33 and the wippen 21 is returned to its horizontal position. Strings 29 are mounted on a metal frame. 38 and are arranged across a bridge 40 which is attached, as, by gluing, to a sounding board 12.