baber/WOPTO huggingface dataset:
Patent GB-1279699-A (GB)
Title: Improvements relating to semiconductor devices
IPC: H01L23/31
Filed: 1969-12-03
Abstract: 1279699 Semi-conductor devices SEMIKRON GES FUR GLEICHRICHTERBAU UND ELEKTRONIK mbH 3 Dec 1969 [20 Dec 1968] 59000/69 Heading H1K A semi-conductor element 14 is soldered to a metallized area 2 of a thermally conductive ceramic substrate 1 of alumina or beryllia and the assembly then provided with an injection moulded housing 5 of alumina filled plastics which is keyed to ridges la (or, in variants, to grooves) on the substrate. The encapsulation surrounds all but the lower face of the substrate which is a plane surface to be clamped to a heat sink or heat dissipating plate by a spring clip integral with the heat sink or by bolts passing through flanges in the substrate. One electrode system of the diode shown consists of a molybdenum plate 15, a metallic body 16, and a stranded conductor 17; the other electrode system consists of the metallized area 2 to which is joined a ring at the end of a lead 18. In variants (Figs. 1-3, not shown), the substrate is provided with two metallized areas to which respective D.C. connection of a bridge rectifier are connected, and pairs of diodes-one on each area-are connected by the phase leads of the bridge. In a manufacturing method, a ceramic substrate provided with two metallized strips each with diodes mounted along is formed with grooves at its undersurface so that units may be broken off which consist of a portion of each area and a respective diode.
Patent GB-1267930-A (GB)
Title: Agglomeration
Inventor: WATRIDGE DEREK JOHN
IPC: A23F5/38
Filed: 1969-12-04
Abstract: 1,267,930. Coffee agglomerates. GENERAL FOODS Ltd. 3 Dec., 1970 [4 Dec., 1969], No. 59380/69. Headings A2B and A2E. An instant coffee composition comprises a free-flowing, soluble, agglomerated powder having a bulk density of 0.25 to 0.40 gm/c.c., a particle size distribution such that at least 50% by weight of the particles are greater than 18 mesh (British Standard), a colour of 28 to 40 Lumetron units, these particles being dense granular chips with regular faces. The free-flowing, soluble, agglomerated powders are prepared by forming milled soluble particles, preferably by feeding the milled particles into a vibrating distributor box and maintaining a sufficient depth of particles in blue box so that they are compacted and form clusters on release from the box, feeding the clusters into a zone where they are moistened and heated, preferably by steam containing a high proportion of water, whereby they form an agglomerated granular powder and drying the resulting powder.
Patent GB-1269675-A (GB)
Title: Process for the manufacture of polyglycidyl ethers
IPC: C07D301/28
Filed: 1969-12-05
Abstract: 1,269,675. Polyglycidyl ethers. CIBAGEIGY A.G. 5 Dec., 1969 [6 Dec., 1968], No. 59662/69. Heading C2C. [Also in Division C3] Polyglycidyl ethers are obtained by the condensation of aliphatic or cycloaliphatic polyhydroxy compounds, which have a melting point of at least 80 C., in the first stage with an epihalogenohydrin of general formula where X is Cl or Br, in the presence of a solvent consisting of 100-30% by weight of 1,4-dioxan and 0-70% by weight of another organic solvent, of boiling point at least 70 C., which is not reactive towards the epihalogenohydrin, and a Lewis acid as catalyst, whereby the corresponding halohydrin ethers are obtained and, in the second stage, the halohydrin ether groups are dehydrohalogenated to glycidyl ether groups with agents that split off HX. The solvent is preferably 100% 1,4-dioxan, but other solvents such as heptane, octane, 1,2-dichloroethane benzene, methyl ethyl ketone or ethyl acetate may also be added. The 1,4-dioxan is preferably distilled off after the first stage and the second stage may then be effected by adding aqueous sodium hydroxide. In the examples the diglycidyl ethers of 2,2-bis-(p-hydroxycyclohexyl)-propane and 1,12-dihydroxydodecane are prepared.
Patent GB-1262040-A (GB)
Title: Device for measuring the humidity of materials, particularly textiles, by means of high frequency
IPC: D06F34/18
Filed: 1970-12-16
Abstract: 1,262,040. Drying clothes. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 16 Dec., 1970 [31 Jan., 1970], No. 59739/70. Heading F4G. [Also in Divisions G1 and H3] The humidity of a material is determined by its damping (i.e. loading effect) on the inductance of an oscillator. Application.-In a laundry rotary drier having a plastics drum (or a plastics ring inserted between the parts of a metal drum). The coil is mounted outside the drum and has a flat format, e.g. printed circuit, Fig. 4, (not shown). It may be connected to an oscillator/control circuit, Fig. 2 (not shown), to switch off the machine at e.g. a residual humidity of 5%. The drum may have a rib (3), Fig. 1 (not shown), to provide a reference point free of washing.
Patent GB-1372014-A (GB)
Title: Cartridge filter apparatus
IPC: B01D35/30
Filed: 1972-12-29
Abstract: 1372014 Filter J F HARMS 29 Dec 1972 60077/72 Heading BID [Also in Division F2] A swimming pool filter comprises an upright vessel 22 closed by a cover 40 and divided by a tube plate 62 whose periphery carries a V-section resilient gasket 70 which seals the cover, vessel and plate together, the vessel having an inlet (26) and outlet (28) at the bottom, and the outlet being connected by a duct 66 to one aperture in plate 62 whose other apertures support inward flow filter cartridges. Duct 66 has a shoulder 68 and gasket 69, and plate 62 has handles 78, the handles pushing plate 62 down onto gasket 69 when bolts 36 are tightened (Fig. 3, not shown). The other apertures 62 support perforate tubes 90 with top flanges 94 and lower threaded ends receiving caps (100). On each tube is arranged a stack of pleated paper filter cartridges with perforate inner sleeves 82 and plastics end caps 86, and caps (100) are tightened to clamp the cartridges to the underside of plate 62, pulling flanges 94 down to compress gaskets 96.
Patent GB-1245608-A (GB)
Title: Plaster bandages
IPC: A61F13/04
Filed: 1968-12-18
Abstract: 1,245,608. Plaster bandages. GIULINI G.m.b.H. Geb. 18 Dec., 1968 [11 Jan., 1968], No. 60147/68. Heading A5R. Plaster bandages consist of fine particle size calcium sulphate α-hemihydrate applied to bandage material, the mean particle size being lower than that required to provide optimium strength in a gypsum body cast from calcium sulphate α-nemihydrate. The calcium sulphate is hydrothermally produced, i.e. prepared from gypsum in an aqueous system at elevated temperatures and pressures. The said particle size may be less than 7Á or 5Á. The fine particle size calcium sulphate α-hemihydrate may be produced by fine grinding particles of a larger size (up to 200Á x 50Á) obtained by hydrothermal recrystallisation as described in Specification No. 992,468, the particles being suspended in an organic solvent during grinding.
Patent GB-1402050-A (GB)
Title: Tube expander
IPC: B21D53/08
Filed: 1973-12-31
Abstract: 1402050 Tube expanders TRIDAN TOOL & MACHINE Inc 31 Dec 1973 60301/73 Heading B3J A tube expander comprises a rod 37, Fig. 2, with an enlarged head 57 for moving through and expanding a tube 22, e.g. into engagement with fins 21, jaws 39, 40 for gripping an end of the tube and being opened by the head 57 in its retracted position, and means for moving the rod. In a first form, Figs. 1 and 2, for expanding a pair of tubes simultaneously, the pivoted jaws 39, 40 are closed on both tubes by a spring 44, and a pair of expanding rods 37, 38 is provided. These are connected to pistons in cylinders 24, 25 which extend between a head 28, into which fluid may be introduced for retracting the rods, and a back plate 31. Hollow plungers 73, 74 close the rear-ends of the cylinders and extend to a plate 32 where they are connected to nozzles 33, 34 for supplying fluid to advance the pistons. Guide rods 26, 27 to which back plate 31 is adjustably fixed by screws 90 extend the length of the apparatus, carrying a bracket 35 for the jaws. The rods 37, 38 pass to each side of the bracket and through loose bearings 55 with inclined surfaces 56 which cam open the jaws upon movement by the heads 57. Handles 29, 30 are provided. The head 57 may have periperipheral slots (92), Fig. 8 (not shown), to permit air to escape when U-shaped pipes are being expanded, or a modified head may be used, Fig. 9 (not shown), in which air passes through a hollow fastener (93) securing the head (94). The expander may be adapted for a single, or more than two, tubes. In another form, Figs. 10 and 11, the rods 103, 104 are driven by toothed gears 125, 126, 133, 134 which have peripheral grooves 137, 138 to receive the rods. The gears 125, 126 are driven, through gears 115, 115<SP>1</SP>, a shaft 116 and clutches 123, 128, 124, 129, by an hydraulic motor 112. A shaft 132 supporting the gears 133, 134, is pressed down by screws and springs 141, 142, 143, 144. Stops 107, 108 on the rods 103, 104 coact with a plate 105 carried by rod supports 101, 102. In a final form, Fig. 15, each rod 225, 226 is driven by two pairs of grooved gears 232-235 the drive to which from an hydraulic motor is through a chain and two clutches on a central shaft 210. The clutches drive gears 213, 214 meshing with the grooved gears. Sleeves 251, 252 in the jaws limit rearward movement of the rods.
Patent GB-1287600-A (GB)
Title: Embossing disc
Inventor: FORTCAMP JAMES A
IPC: B41J1/30
Filed: 1969-12-15
Abstract: 1287600 Making embossing dies ADDRESSOGRAPH MULTIGRAPH CORP 15 Dec 1969 [18 Dec 1968] 61025/69 Heading B3A [Also in Division B6] Embossing discs.-An embossing male disc punch has a plurality of radial fingers 24 which are stamped with characters, the recessed side of the characters being filled with a compression resisting material, such as an epoxy resin with iron powder, or a brazing alloy, the material being ground flush, Fig. 8b (not shown).  The disc may be formed of low or medium carbon steel, e.g. AISI 1070 in annealed condition by punching in several stages. Resistance to character collapse due to repeated use is reduced by the filling. A mating female die disc is formed from a blank of medium steel or alloy and the dies formed by a coining or sinking operation. A hub section 48 and a raised ring section 50, Fig. 11, are machined and the character is formed on the raised planar surface.
Patent GB-630819-A (GB)
IPC: H04W88/02
Abstract: 630,819. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd. Aug. 29, 1947, No. 23929. Convention date, Sept. 7, 1946. [Class 40 (i)] [Also in Group XL (c)] In a telecommunication sub-station a plurality of electromagnetic vibrators independently operable in any order is responsive to different signal modulation frequencies and so connected that the sub-station is called only after a predetermined sequence of operation of the vibrators. In the Figure, tuned reeds 11, 12, 13 in a mobile frequency modulation station are vibrated successively by the signal modulation frequencies after detection and amplification. The first reed 11 positively charges from a battery B, through an intermittently engaged contact 14 and a resistance 18, a condenser 19. The latter, on the reed 12 vibrating, passes its charge to a condenser 20 through a contact 15, the other side of the condenser acquiring a negative charge from earth through the resistance 21. When the reed 13 vibrates the condenser 20 rapidly discharges creating a negative charge on condenser 23 biassing to cut-off a normally oscillating gaseous discharge tube 24 and de-energizing a normally energized anode circuit relay 29. Relay contacts 31, 30 therefore fall back respectively applying H.T. to the power output valve 2 of the receiver and a negative maintaining bias on the tube 24. On the carrier ceasing thermal agitation output from the limiter 58 is sufficient to restart oscillations of the tube 24 and reactuate the relay 29. The microphone once released from its hook may, however, be arranged to maintain the receiver operative. Resistors 17, 22, 21, allow leakage of charge from the condensers 19, 20, 23, so that the control circuit returns to normal unless the call frequencies follow successively with only short intervals. One or more further reeds 40 may be used to call a group of stations having such reeds. The characteristic call tones may be transmitted successively by a dial switch.
Patent GB-728462-A (GB)
Abstract: 728,462. Insulating electrical conductors. STANDARD TELEPHONES & CABLES, Ltd. June 19, 1953 [June 23, 1952], No. 15753/52. Class 109. A method of insulating electric conductors 1 by longitudinally folding a strip of paper 3 in a heated die 2 so that it lies around the conductors, is characterised in that the strip of paper is subjected to a humidifying process to impart a controlled moisture content thereto immediately before it is supplied to the heated folding die. The humidifying process may consist of steam jets 4, 5 applied to one half of the upper and lower surfaces of the strip 3 respectively. Alternatively, water sprays may be applied to the strip or the strip may be moistened by being passed between rollers, one of which is partially immersed in a water bath, Specifications 679,934 and 728,454 are referred to.
Patent GB-739554-A (GB)
Abstract: 739,554. Magnetic recording and reproducing apparatus. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. May 28, 1954 [May 28, 1953], No. 15818/54. Class 40 (2). In a magnetic record apparatus employing a sheet record mounted on a revolving cylinder, the magnetic heads 10, 11 are mounted in a casing 2 movable along a guide rod 4 and having a concave surface 2b engaging the cylinder 1 against which the casing 2 is pressed by a leaf spring 16 acting between the casing 2 and the guide rod 4. The magnetic heads 10, 11 are independently held against an opening 3 in a casing 2 by leaf springs 12, 13 respectively, the latter spring 13 being bifurcated to span the head 10.
Patent GB-2002971-A (GB)
Title: Structural member particularly for use in an electric wiring system
IPC: H02G3/04
Filed: 1978-08-11
Abstract: A structural member which is particularly intended for use in an electric wiring system in a building comprises a web portion 11 and a flange portion 12 extending laterally therefrom, the flange portion having an inturned lip 13 to provide a channel for receiving electric wiring and a detachable cover member 14 for closing said channel, the cover member and at least one of the sides of the channel having a recess and projection combination which are releasably engageable to hold the cover member in place. <IMAGE>
Patent GB-2005171-A (GB)
Title: Self-piercing and self-tapping screw
IPC: F16B25/10
Filed: 1978-10-06
Abstract: A self-piercing and self-tapping screw comprises a cone point 3 and a threaded portion 9 along its shank, with between the point and the thread a cylindrical gauging zone 11 having the same diameter as the minor diameter of the threaded portion; one or more cutting lips 4 with flat faces 5 increasing in diameter towards the thread are formed in the longitudinal direction of the point. The cutting lip edges lie in a common diametral plane or on different, spaced radial planes, a cavity being formed on the leading side of each cutting lip for receiving the shavings cut during the tapping operation. At least one projecting tooth 10 is formed on the portion of each cutting lip which is adjacent the screw shank, the section of each tooth corresponding to only one portion of the thread section 9. <IMAGE>
Patent GB-2010918-A (GB)
Title: Vapour Depositing Tin Oxide and Indium Oxide on Plastics Sheet
IPC: B29D11/00
Filed: 1978-10-12
Abstract: A mixture of tin oxide and indium oxide is evaporated and the mixture is deposited on the plastics carrier. The proportion of tin oxide is 20 to 30 mol% and the proportion of indium oxide is 70 to 80 mol%, the mixture being deposited on the carrier 1 at room temperature. The proportion of indium oxide is preferably 75 mol% and that of tin oxide 25 mol%. The coated sheet does not accumulate electrical charge.
Patent GB-2009183-A (GB)
Title: Crosslinking of Polymers with Azo Esters
IPC: C08J9/10
Filed: 1978-10-31
Abstract: Azo esters of the general formula   <IMAGE>  in which R denotes hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl; R<1> and R<2> each denotes unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl; or R and R<1> together denote unsubstituted or alkyl-substituted dimethylene or trimethylene; or R<1> and R<2> together denote unsubstituted or alkyl-substituted tetramethylene or pentamethylene; and R<3> denotes unsubstituted or substituted alkyl, cycloalkyl, aralkyl or RCOO-; are used crosslinking agents and, optionally, simultaneously as blowing agents, for crosslinking polymers (for example polyethylene, ethylene copolymers, diene rubbers or PVC) at temperatures of at least 170 DEG C, preferably from 180 to 230 DEG C, and at pressures of from 0 to 2.07 MPa (0 to 300 lbf/in<2>). These azo esters have the advantage, <inter alia>, of higher decomposition temperatures than conventional peroxide, crosslinking agents making them suitable for crosslinking polymers having a high softening temperature, and of not being toxic or causing discolouration as is the case with certain known azo crosslinking agents.
Patent GB-2015644-A (GB)
Title: Supercharging system for an internal combustion engine
IPC: F02B37/007
Filed: 1979-01-11
Abstract: A pair of turbosuperchargers 15, 16 are arranged in parallel with their turbines 13, 14 connected with exhaust lines 11 of the engine and their compressors 17, 18 connected with inlet lines 12 of the engine. A valve 22 between the turbine 14 and the exhaust lines 11 actuated as a function of the pressure in the inlet lines 12 serves to switch in the turbosupercharger 16 at a medium speed of the engine 10 and a blow-off valve 25 permits air from the compressor 18 to blow off until its pressure equals that supplied to the inlet lines 12 by the compressor 17. A check valve 19 prevents pressure from the compressor 17 reaching the compressor 18. In a modification, the valve 22 is responsive to the exhaust pressure in the exhaust lines 11 and the air supplied to the compressor 18 is controlled instead of compressed air from the compressor being blown off. <IMAGE>
Patent GB-2014896-A (GB)
Title: Removing molded lenses from the mold
IPC: B29D11/00
Filed: 1979-01-11
Abstract: A method of making plastic lenses comprises casting a liquid monomer in a container 3 having the required optical curve 2 on the bottom of the container, polymerizing the monomer to form a solid 6 having an optical surface formed within the container and cutting a second optical surface 9 on the solid lens material with the container supporting the lens material during the cutting and polishing operation. The lens is removed from the casting container by applying force against the sides 11, 12 of the container to distort the container and stretching the surface 2 to effect the release of the lens 6. <IMAGE>
Patent GB-2013276-A (GB)
Title: Fuel pump
IPC: F02M37/06
Filed: 1979-01-25
Abstract: A fuel pump comprises a housing (1, 3, 5), there being in the housing a suction chamber (11, 13) connected to an admission conduit (9), a delivery chamber (15) connected to an outflow conduit (17) and a pump member (31, 37-55) connected through one way valves (33, 35) to the suction chamber and the delivery chamber. At least one of the walls which close off the delivery chamber is formed by an elastic seal element (25). The pump member comprises a diaphragm (37) acted on by a pump spring (39) and a push member (41) which is reciprocated by an element such as a cam driven by the engine to which the pump is supplying fuel. <IMAGE>
Patent GB-2017162-A (GB)
Title: Loom for Producing Fancy Yarns
IPC: D04B23/18
Filed: 1979-03-19
Abstract: A loom for producing fancy yarns for use in the production of woven and knitted manufactured goods in which each needle for the formation of chains there is associated with at least one thread guide which shifts, during the formation of the chain, from one side to the other of the vertical plane containing said needle and in which the mechanism which moves the thread guides of the loom is so controlled that the lateral excursions of said thread guide outside the aforementioned plane are shorter than the interval which separates each needle from the contiguous needles; the loom being provided with means adapted for the positive feed of an effect yarn to the thread guide, said means comprising in each case-for each thread guide-a pair of rollers for guiding and feeding the effect yarn, at least one of said rollers being a driven roller. <IMAGE>
Patent GB-2019436-A (GB)
Title: Steel Alloys, Articles Made Therefrom, and Method of Making Such Alloys
IPC: C22C38/18
Filed: 1979-03-20
Abstract: The invention provides a steel (or a steel article such as a fastener for use in an explosive-powered fastener- driving tool) which is both tough and strong, economically, and comprises:  0.50 to 1.00% carbon  0.10 to 1.50% silicon  0.25 to 1.50% manganese  up to 0.045% phosphorus  up to 0.045% sulphur  0.20 to 0.90% molybdenum and/or  0.20 to 2.00% chromium, the remainder being iron, possible slight-alloying elements and impurities, having been subjected to a bainite hardening treatment in the region of or at temperatures above the martensite point in the range 0 to 100 DEG C above said point, until a maximum transformation of 85% has been achieved. The invention provides, also, a corresponding method.
Patent GB-2051285-A (GB)
Title: Wheel Nuts
IPC: F16B43/02
Filed: 1979-06-21
Abstract: A wheel nut for vehicle wheels which are located by a central spigot, incorporates a captive seating washer (12) and part-spherical seating surfaces (16) and (17) between the nut head (11) and washer (12) to allow the wheel nut to seat via its washer on a flat surface even in the event of a misaligned stud or a misaligned internal nut thread, without applying a bending load to the stud. <IMAGE>
Patent GB-2026958-A (GB)
Title: Tyre and wheel rim assemblies
IPC: B60C15/024
Filed: 1979-07-10
Abstract: In a tyre and wheel rim assembly in which the rim includes adjacent to a bead seat 7 a circumferentially extending groove 10 and the associated tyre bead 4 has a radially and axially inwardly projecting toe 11 which is engaged in the groove, the bead 4 is provided with an integral projection 14 on its axially inward surface, which, in use, contacts the rim if rotation of the bead occurs due to lateral force on the tyre and thereby generates forces which assist the toe 11 in retaining the head 4 on its seat 7. Alternatively or additionally to the projection 14 there may be an outward projection integrally formed on the rim in the region 17. In a different embodiment a separately formed ring is attached to the bead 4 or the rim to provide a projection. <IMAGE>
Patent GB-2029292-A (GB)
Title: Deflashing apparatus
IPC: B24B31/02
Filed: 1979-08-10
Abstract: Apparatus for deflashing stamped parts of thermosetting plastics comprises a container (5) in the form of a hopper having a bottom which can be opened for discharge of the stamped parts into a deflashing rotor (14) disposed underneath the said container. A door (16) of the rotor is adapted to be opened to receive the parts discharged from the container. A chute structure (1A, 40) is disposed beneath the rotor for the purpose of removing deflashing residues and is equipped with a door (30) adapted to cooperate with the door of the rotor in order to discharge deflashed parts. <IMAGE>
Patent GB-2057817-A (GB)
Title: Telecommunication system
IPC: H04B5/00
Filed: 1979-09-03
Abstract: In a telecommunication system which uses a pair of radiating transmission lines A, B and has amplifier and filter stations S1, S2, S3, at intervals along its length, the stations have the amplifying elements provided as two distinct amplifiers G, H, one for signals at a first frequency (f1) transmitted from a base station (C) and the other for signals at a second frequency (f2) transmitted from a mobile station. <IMAGE>