baber/WOPTO huggingface dataset:
Patent GB-1369573-A (GB)
Title: Magnetoresistive sensing device
IPC: G11B5/39
Filed: 1972-09-28
Abstract: 1369573 Magnetic storage devices INTERNATIONAL BUSINESS MACHINES CORP 28 Sept 1972 [26 Oct 1971] 44737/72 Heading H3B  A sensor of small magnetic fields, such as bubble domains, comprises a magneto-resistive element whose dimensions are sufficiently small, e.g. 200 angstroms thick, 7À5 microns long and 5 microns wide, as to have both a uniaxial anisotropy field imparted during manufacture, and a shape anisotropy field determined by the relationship of its unequal length and width dimensions, the two anisotropy fields being mutually perpendicular and the larger of the two fields being substantially perpendicular to the magnetic field to be detected. As shown in Fig. 1A, a rectangular magnetoresistive element 18 is associated with an orthoferrite or garnet sheet 10 in which bubble domains are propagated by the combination of a permalloy T and I bar pattern and an in-plane rotating magnetic field H. A rectangular magnetoresistive sensor element 18 formed, e.g. of permalloy; and located on or adjacent to the sheet 10, is connected to a constant current source 20 by leads 19, changes of resistance due to magnetic field proximity being indicated to a utilization means 22 as a change of voltage Vs. The sensor element has an easy axis of magnetization E.A. transverse to its length, and has a shape anisotropy field greater than the uniaxial anisotropy field so that the magnetization vector M is normally directed along the length of the element. When a bubble domain 30, Fig. 1B, is moved into a position adjacent the sensor element 18, the external field H B  of the domain coupled with the element causes rotation of its magnetization vector M and consequential change in the element resistance. It is stated that the use of both uniaxial and shape anisotropy enhances the detection sensitivity to small magnetic fields. In a modification. Figs. 2A and 2B, the sensor element is arranged so that it is parallel to an external domain field H B  along its length dimension. As before the easy axis of magnetization E.A. extends across the width of the element, but in this case the shape anisotropy field is less than the uniaxial anisotropy field so that the normal position of the magnetization vector M is parallel to the easy direction of magnetization. This vector is rotated towards the length dimension of the element by an adjacent bubble domain 30 as shown in Fig. 2B. The sheet 10 is subjected to a bias field H z  derived from a permanent magnet, an energized coil or an adjacent magnetic sheet. The sensor may be used to read out a pattern of domain reversals extending across a moving magnetic tape, Fig. 3A (not shown), in which case the sensor element is mounted with electrical connections on an insulating substrate. Such an element is formed by evaporation deposition on a magnetic sheet or insulating substrate in the presence of a magnetic field with the subsequent selective formation of electrical connections by masking, electroplating and etching.
Patent GB-1057114-A (GB)
Title: Improvements in or relating to profile milling cutters for circular milling
IPC: B23C3/06
Filed: 1963-11-13
Abstract: 1,057,114. Milling - cutters. GESELLSCHAFT FUR FERTIGUNGSTECHNIK UND MASCHINENBAU G.m.b.H. Nov. 13, 1963 [Dec. 18, 1962], No. 44742/63. Heading B3K. A milling cutter for machining a crank-pin comprises a body having transverse slots to receive square cutting bits 8, one of the bits 7 serving to machine the transistion from the crank-pin to the crank-web. Each slot contains a block 3 retained by a pin 4, the block carrying a keyed holder 5 (5a) having recesses to receive two square bits. One bit of each pair is a corner bit 7 to machine the transistion and the other bit machines either the pin (bits 8) or the web (bits 9). The bits are clamped by screwactuated wedges 12, which also serve to secure the blocks 3 and the holders 5.
Patent GB-914146-A (GB)
Title: Improvements in valves for use with fluid flows
Inventor: SCHWEN WILLI
IPC: F16K15/14
Filed: 1960-12-30
Abstract: 914,146. Valves. KLEIN SCHANZLIN & BECKER A.G. Dec. 30, 1960, No. 44828/60. Class 135. The closure member 8 of a valve is connected to an insert 4 in the valve casing 1 by a bellows 7 which has a smooth cylindrical external surface when compressed by the closure members 8 in its open position. To close the valve, fluid may be admitted to the bellows through a duct 13 which may be connected to the valve inlet by a valve 17. Alternatively, a vent may be provided at the apex of the insert 4 so that the valve prevents return flow.
Patent GB-1394489-A (GB)
Title: Vane pump housing
IPC: B23P15/00
Filed: 1973-09-25
Abstract: 1394489 Rotary pumps NISSAN MOTOR CO Ltd 25 Sept 1973 [28 Sept 1972] 44913/73 Heading F1F A vane pump comprising a housing having a bore 12 therein of substantially circular profile, an annular resilient sleeve 26 being disposed in the bore, a rotor 18 with diametral vanes 22, 24 rotatable with the housing about an axis offset from the axis of the bore 12, and the resilient sleeve 26 being deformed by a wedge 28 in the direction of the line containing the two axes so that the vane edges are in continuous sliding contact with the sleeve 26 at all angular positions of the rotor 18. The dimensions of the wedge 28 are such that the sleeve 26 will be deformed by an amount which makes the diameter of the sleeve in the line containing the two axes equal to the length of the vanes 22, 24.
Patent GB-1193580-A (GB)
Title: Improvements in or relating to Footwear.
IPC: A43B5/04
Filed: 1968-09-23
Abstract: 1,193,580. Boots &c. SEMPERIT OESTERREICHISH - AMERIKANISCHE GUMMIWERKE A.G. 23 Sept., 1968 [22 Sept., 1967], No. 45058/68. Heading A3B. An article of footwear e.g. for skiing, mountaineering, industrial or like use, has an upper consisting of one or more textile layers, optionally coated with rubber or plastics and optionally including cushioning inserts and/or heat insulating layers, and a sole joined to said upper, the entire shoe being coated externally with a cohesive polyurethane layer which has a substantially constant overall thickness. The polyurethane layer may be porous and may consist of a plurality of coatings of varying hardness and toughness. The polyurethane layer is applied to the lasted shoe by injection moulding, spraying, dipping or painting.
Patent GB-1200288-A (GB)
Title: Composition for emulsifying hydrocarbons
Inventor: SALOMONE GEORGE HENRI
IPC: C09K23/00
Filed: 1968-09-23
Abstract: 1,200,288. Emulsifying hydrocarbons. G. H. SALOMONE. 23 Sept., 1968 [3 April, 1968], No. 45079/68. Heading ClC. [Also in Division C7] Hydrocarbon oil is emulsified with water by a composition comprising a mixture of a strong mineral acid, an ammonium salt or a salt of an alkali metal or alkaline earth metal and a hydrophilic organic substance.
Patent GB-1494290-A (GB)
Title: Photographic vacuum contact printer
IPC: G03F7/20
Filed: 1975-10-31
Abstract: 1494290 Photographic contact printing apparatus DAINIPPON SCREEN SEIZO KK 31 Oct 1975 [2 Sept 1975] 45117/75 Heading G2A As shown, photographic vacuum contact printing apparatus comprises (a) a housing 1 enclosing a light source (not shown), (b) a frame 7 mounted on top of housing 1 and surrounded by an airtight resilient packing member 9, (c) a rigid transparent (preferably glass) plate 6 supported by frame 7 and lying within packing member 9, (d) a resilient flexible sheet 12 secured by one end to one side of the frame 7, (e) a pair of vertical bearing plates 17, movable along opposite sides of frame 7, in a direction perpendicular to the side to which sheet 12 is connected, (f) a winding roller 15, journalled in bearing plates 17 and connected to the other end of sheet 12, with a spring 18 tending to wind sheet 12 on to roller 15, (g) a pressure roller 16 mounted on plates 17 for rotary and vertical movement between winding roller 15 and the end of sheet 12 fixed to frame 7, (h) means 24 for guiding the ends of pressure roller 16 upward to raise it above sheet 12 when it is nearly wound up, and means for creating a vacuum between sheet 12 and plate 6. The copy and sensitive material are placed, superimposed on plate 6, with the apparatus in the position shown. An electric motor (not shown) is energized to drive a sprocket 29 engaging a chain 28 connected to one or both of the plates 17. At the same time vacuum is applied to the space between plate 6 and sheet 12 through a nozzle 11 and a passage 10. As the plates 17 move, sheet 12 is unwound and, with the aid of a roller 34, lies over the copy. Roller 16 rolls down fixed ramps 24 and rolls over sheet 12 to expel entrapped air, and at the end of travel sheet 12 covers the packing 9, the outer edge of which is turned up. After exposure, the vacuum is removed and the moving parts return. A cover 14 is fastened to plates 17 by bolts 17, and springs 31 are mounted between plates 17 and cover 14. This allows some pivotal movement of cover 14. If excessive pivotal movement occurs (e.g. when the cover meets an obstruction) switches (32), (33), Fig. 6 (not shown) are closed to give a warning signal.
Patent GB-1451914-A (GB)
Title: Method of making a building element
IPC: B28B23/00
Filed: 1973-09-26
Abstract: 1451914 Moulding reinforced concrete elements E WENNSTROM 26 Sept 1973 45177/73 Heading B5A [Also in Divisions E1 and E2] A building element comprising a relatively thin layer 5 of reinforced concrete and a number of prefabricated transversely extending joists 7 fixed to the concrete by projections secured in the joists and embedded in the concrete is formed by arranging in a mould 1, which may have removable sides 3, a mesh 4 of reinforcement, embedding the mesh in a thin layer of concrete 5 and then pressing into the wet concrete substantially U-shaped securing members 8 previously secured in prefabricated joists 7 so that they are surrounded by the concrete. The prefabricated joists may be of wood, reinforced concrete or lightweight concrete and the rods forming the mesh may be welded together. The elements may be used to form walls or floors and may be secured together by nailing or screwing into the wooden joists, or screwing into sockets embedded in concrete joists.
Patent GB-1281953-A (GB)
Title: Alpha-gamma flight path display
IPC: B64D45/04
Filed: 1969-09-16
Abstract: 1281953 Head-up display SINGER CO 16 Sept 1969 [25 Nov 1968] 45652/69 Heading G2J A head-up display for an aircraft giving the flight path and glide slope angle y comprises, a partially reflecting screen 10 positioned in the pilot's line of sight to reflect a reticle image projected at infinity by optical means 16, 18, 20 into said line of sight, a plurality of reticles positioned by servo-mechanisms and including a first movable reticle 28 having transparent numerals corresponding to glide slope angles and a second movable reticle comprising a back lighted aperture (40), Fig. 3 (not shown) responsive to an angle of attack sensor. Signals of pitch angle P and angle of attack α pass through linked amplifiers 22, 24 to give a combined signal of glide slope angle y which is passed to tape reticle 28. Amplified signals of angle of attack are passed to motor 32 which controls, by a rack and pinion (34, 36) the movement of carrier 14 having horizontal slots (44) protruding beyond the side of the tape reticle 28. A lamp 16 projects the images via mirror 18 through collimating lens 20 and on to the angled screen 10, made of stacked sections, each interior face being silvered. In operation Fig. 4 (not shown) the pilot observes the glide slope angle and after flight path correction superimposes the flight path on the runway to give the touchdown point. In a modification, screen 10 is replaced by a transparent glass plate having a deposited narrow band optical filter 60 which is used in combination with a lens 20 having a corresponding filter 62 which transmits only the narrow band rejected by filter 60, so giving a single colour image in the pilot's line of sight. Specification 1267707 is referred to.
Patent GB-1348728-A (GB)
Title: Production of microcapsules
IPC: D06M23/04
Filed: 1971-10-05
Abstract: 1348728 Microcapsules JAPAN EXLAN CO Ltd 5 Oct 1971 [6 Oct 1970] 46353/71 Heading B8C Hydrophobic materials are microencapsulated in mantles of hydrophilic colloid material by conventional coacervation of the encapsulating material from an aqueous thiocyanate-containing solution thereof on to core material which is dispersed therein. Hardening may be achieved subsequently by conventional treatments, e.g. with formaldehyde, N-methylol compounds and the like. Any water-soluble thiocyanate may be used, alkali metal, expecially sodium, thiocyanates being preferred. Numerous suitable hydrophilic colloids are mentioned including gelatin, casein, fibrinogen, albumin, PVP, polyvinyl alcohol, poly(N- methylol acrylamide), vinyl methyl ether/ maleic anhydride copolymers, polyacrylates, alginates, dextran sulphate, agar, pectin, gum arabic, CMC and naphthalene sulphonic acid/ formalin condensates. Examples relate to the encapsulation of isoamyl salicylate (perfume), tris (2,3-dibromopropyl) phosphate (fire retardant) and TiO 2  in polyvinyl alcohol, gelatine and acrylonitrile/methyl acrylate copolymer.
Patent GB-1410668-A (GB)
Title: Slide arrangement for a machine tool
IPC: B23Q5/40
Filed: 1972-10-10
Abstract: 1410668 Screw-and-nut mechanism NEDERLANDSE INDUSTRIE VOOR BAGGERWERKTUIGEN NIVOBA NV and JJ HOLTHUIS 10 Oct 1972 [13 Oct 1971] 46544/72 Heading F2Q [Also in Division B3] A tool 12 feed arrangement, e.g. for a lathe cutting tool or for a tool for shaving off a particulate filter medium from the outside of a rotating drum filter comprises a frame 1 for carrying the tool, at least two spindles 3 secured to the frame, a bush 4 mounted to rotate about each spindle 3 and adapted to move axially along the spindles through the intermediary of reduction ratio drive means, e.g. a screw drive, and a drive shaft in driving connection with said bushes by a respective worm 7 and gear 5. The screw drive may comprise a screw shaft 10 and nut 11 or a re-circulating ball nut connection between the bushes 4 carrying the worm wheels 5 and the spindle 3. In the embodiment described for shaving a drum filter (Fig. 4, not shown) the tool 12 is mounted between a pair of cages 8 and the two worms 7 are driven on a common shaft. As the drum filter is rotated an adjustable eccentric alternately raises and lowers a weight by means of a flexible toothed belt which act through a free wheel clutch to intermittently rotate the common shaft carrying the worms 7.
Patent GB-1118640-A (GB)
Title: Transistor logic circuit
IPC: H03K19/086
Filed: 1965-11-03
Abstract: 1,118,640. Logic circuits. HITACHI Ltd. 3 Nov., 1965 [21 Nov., 1964; 28 June, 1965], No. 46580/65. Heading H3T. A logic circuit comprises a plurality of transistors having their emitters connected via a common resistor to a power supply point and their collectors via another common resistor to another power supply point, means being provided to detect changes in the collector/emitter voltages and to feed such changes back to the common collectors. Such a circuit provides direct and inverted outputs and can be coupled to one or more succeeding stages. The collector resistor also serves to prevent ringing if the load is capacitative, by feeding back a voltage through the base-collector capacitance when this becomes forward biased. It is arranged that the transistor becomes saturated only on the overshoot of voltage due to ringing, thus preserving fast response. Fig. 3 shows two cascaded AND circuits with extra transistors Tr1 and Tr2 which stabilize the emitter-collector potentials of the logic transistors and thus facilitate the elimination of the ringing. Transistors Tr1 and Tr2 are normally cut off but if the collector voltage at c or c<SP>1</SP> falls or rises emitter current will flow in Tr1 or Tr2 respectively to restore the voltage to its former level. R 1  and R 1 <SP>1</SP> may be replaced by diodes, and R 3  and R 3 <SP>1</SP> may be omitted; stabilization may be improved by a further resistor between the emitter of Tr1 or Tr2 and c or c<SP>1</SP> respectively (Fig. 8, not shown).
Patent GB-994041-A (GB)
Title: Parenteral infusion apparatus
IPC: A61M5/14
Filed: 1962-12-10
Abstract: 994,041. Surgical drip chambers. D. KATZ. Dec. 10, 1962 [Dec. 11, 1961], No. 46589/62. Heading A5R. A surgical drip chamber 10 has near its outlet a connector 13 and means, e.g. a clamp 19, for selectively stopping or releasing flow through the outlet, the first connector 13 being connected or connectable with a complementary connector 14 at one end of an extension tube 15, on the other end of which is an adapter 16 for receiving an infusion needle-18. A pump having a filter, or a Y-joint, for the introduction of medicament, each of which has connectors which may be engaged with the first and complementary connectors respectively, may be fitted between the drip chamber and the extension tube. A tube for the introduction of medicament by a hypodermic syringe may similarly be connected between the extension tube and the needle. The connectors are of slip fit, lock fit or screw fit types.
Patent GB-1354219-A (GB)
Title: Tobacco reclaiming method and apparatus
IPC: A24C5/36
Filed: 1972-10-11
Abstract: 1354219 Stripping cigarettes ROTHMANS OF PALL MALL CANADA Ltd 11 Oct 1972 [25 Jan 1972] 46747/72 Heading A2C  Tobacco is removed from the tubular openended wrapper of a cigarette by momentarily subjecting the tobacco-containing section of the cigarette to a radially compressive force and then, while maintaining the wrapper against lengthwise movement, and before the compressed tobacco within the wrapper has had time to recover its original volume, displacing the tobacco from the wrapper by directing an inert gas under pressure towards an end of the wrapper. In an embodiment for use with filter cigarettes, the cigarettes are radially compressed by a star wheel 42 while being fed in the flutes 16 of a wheel 12 which cooperates with a second wheel 14. Flutes (22) in the wheel 14 are formed in two parts of which part 26, corresponding to the filter section of the cigarette, is of lesser diameter than part 28 so that, at the point of nearest approach (30) of the wheels 12, 14, the filter part of the cigarette is firmly gripped between the flute 16 and the flute part 26. At this point (30), compressed air is directed by a pipe 38 towards the filter end of the cigarette so as to blow the tobacco out of the other end. Means are provided for collecting the displaced tobacco and the empty cigarette shells.
Patent GB-1180410-A (GB)
Title: Process and Apparatus for the Production of Pig Iron
Inventor: CARLI ADRIANO
IPC: C21B11/10
Filed: 1967-10-19
Abstract: 1,180,410. Melting and extracting iron. A. CARLI. Oct.19, 1967 [Oct. 20, 1966], No.47615/67. Heading C7D. [Also in Division F4]  A shaft furnace for the reduction of iron oxides, comprises a lower hearth portion 9, and an upper shaft portion Sh. The charge which consists solely of iron ore and scrap, is fed down the shaft into the melting and reduction zone formed just above a well in the hearth where it is smelted with powdered coal introduced through a ring of nozzles (not shown) and/or hollow electrodes 4, which electrodes 4 and/or fluid fuel burners B, provide the heat needed by the process. The liquid pig iron and slag so produced, are discharged through tap holes Fe, Sg respectively. Carbon monoxide evolved from the bath, passes up from the smelting zone to be completely combusted with oxygen and/or air, introduced through tuyere ON, and further nozzles (not shown) fed by branch pipes NO, the heat produced being used to pre-heat the descending charge. The charge contains from 10 to 50% by weight of its iron content in the form of scrap.
Patent GB-1358902-A (GB)
Title: Thickened aqueous compositions containing acrylamidoalkanesul phonate polymers
IPC: C10M173/00
Filed: 1971-10-13
Abstract: 1358902 Thickened aqueous polymer compositions LUBRIZOL CORP 13 Oct 1971 [27 Oct 1970 (2)] 47718/71 Heading C3P [Also in Division C5] Aqueous compositions having modified viscosity properties, suitable for use as fire-resistant hydraulic fluids, and the like, comprise water and as a viscosity modifying agent, a watersoluble polymer of a monomer of the formula wherein R<SP>1</SP> is H, C 1 -C 7  alkyl or substituted C 1 -C 7  alkyl radical, R<SP>2</SP> is a hydrocarbon or substituted hydrocarbon radical, each of R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> is H or a hydrocarbon or substituted hydrocarbon radical, and M is H or one equivalent of a cation. (The term " water-soluble " is used to denote that the polymer forms with water a homogeneous system.) The polymer may be a homopolymer or a copolymer with, for example, (meth)acrylic acid or a salt thereof, an amide such as acrylamide, methacrylamide, N- methylacrylamide and diacetone acrylamide, or maleic anhydride or fumaric acid. The compositions additionally include either (a) a water-miscible diol or ether thereof or (b) a mineral oil and an emulsifier or dispersing agent. Examples of (a) are ethylene glycol, propylene glycol, diethylene glycol, ethylene glycol monomethyl or monobutyl ether, and diethylene glycol monomethyl ether. A preferred emulsifier for (b) is a mixed alkali metal/amine salt of a mixture of a fatty acid (e.g. tall oil acid) and an aliphatic α,#-dicarboxylic acid having at least 50 carbon atoms (e.g. polyisobutenyl succinic acid). The compositions may also contain additives such as rust inhibitors and extreme pressure agents (e.g. a zinc salt of an alkyl phosphoro dithioic acid). Examples 1-3 illustrate preparations of sodium 2 - acrylamido - 2 - methylpropanesulphonate homopolymer. The monomer is polymerized in an aqueous/organic medium using a redox catalyst system and emulsifier; the polymer product is obtained in granular form.
Patent GB-1337470-A (GB)
Title: Device for conditioning fabrics
IPC: D06F58/20
Filed: 1971-10-15
Abstract: 1337470 Pads COLGATE-PALMOLIVE CO 15 Oct 1971 [20 Oct 1970] 48097/71 Heading A4F A device for conditioning fabrics in a household dryer comprises a spherical body 12 of foam plastics material having a plurality of openings containing a solid fabric conditioning material. The openings may be wedge-shaped, rectangular or circular in cross-section.