baber/WOPTO huggingface dataset:
Patent GB-1366208-A (GB)
Title: Polyurethanes
IPC: C09J175/08
Filed: 1972-09-20
Abstract: 1366208 Boots &c E I DU PONT DE NEMOURS & CO 20 Sept 1972 [20 Sept 1971 30 June 1972] 43610/72 Heading A3B [Also in Division C3] Shoe soles may be adhered to shoes uppers, particularly polyvinyl chloride uppers, using a heat-activatable adhesive based on a polyurethane which is the reaction product of (a) 4,4'-methylene-bis(phenyl isocyanate), (b) tolylene diisocyanate, (c) 1,4-butanediol and (d) polytetramethylene-ether glycol of molecular weight 600-2100 (see Division C3) The polyurethane is usually dissolved in a solvent to form an adhesive solution. In Examples, plasticized polyvinyl chloride shoe uppers are bonded to styrene-butadiene copolymer or standard vinyl soling material. The adhesive solution is brushed on the shoe upper and soling materials, which may have been wiped with methyl ethyl ketone or buffed with alumine paper, the solvent is allowed to evaporate to yield dry non-tacky surfaces which are heated to activate the adhesive and the two materials are then brought into contact and pressed.
Patent GB-1367880-A (GB)
Title: Reinforced tubes and to a method of and apparatus for making them
IPC: B29C48/34
Filed: 1970-09-11
Abstract: 1367880 Reinforced plastics tube BTR INDUSTRIES Ltd 1 Sept 1971 [11 Sept 1970] 43611/70 Heading F2P [Also in Division B5] An extruded tube 40 of thermoplastic, thermosetting, or rubber material, comprises inner 41 and outer 42 layers of the same or different material and each of which includes discrete staple fibres which have been oriented, during extrusion, along a helical path of opposite band to the fibres of the other layer. The helix angles may be 50 to 60 degrees, and is preferably 5444<SP>1</SP>. The fibres are of a length preferably 400 times their diameter. The tube may include a further layer of different material on its inner and/or outer surface. The helix angle of each layer may be the same. The helical orientation is obtained by extruding through die parts which rotate in opposite directions (see Division B4-B5).
Patent GB-1364868-A (GB)
Title: Separating iron values from acidified zinc sulphate solutions
IPC: B23H1/02
Filed: 1971-09-20
Abstract: 1364868 Iron values from acidified zinc sulphate DET NORSKE ZINKKOMPANI AS 20 Sept 1971 [30 Sept 1970] 43778/71 Heading C1A Iron values are recovered from sulphuric acid acidified zinc sulphate solutions by treatment of the solutions with Fe2O3 and/or Fe(OH)3 at a temperature of 60-100 C. and a pH of 1-2À5 to precipitate a complex basic iron sulphate. The zinc sulphate solution may be obtained from leaching iron containing zinc ores. The precipitating agent may be "red mud", the residue obtained from the decomposition of bauxite and may also contain Al2O3 and TiO2 in amounts from 10-20% and 5-10% by wt. respectively.
Patent GB-1353959-A (GB)
Title: Polymer blends
IPC: C08F236/04
Filed: 1971-09-20
Abstract: 1353959 Polymer blends BORG-WARNER CORP 20 Sept 1971 [26 Oct 1970] 43781/71 Heading C3P A polymer blend comprises 10-90% of a vinyl chloride polymer with 90-10% of a tetrapolymer derived from 30-90 parts of a butadiene, 10-50 parts of an acrylic nitrile, 1-9 parts of a halogeno-acrylic nitrile and 1-9 parts of a C 1 -C 8  alkyl acrylate or methacrylate. In the examples the tetrapolymer is formed from butadiene, acrylonitrile α-chloroacrylonitrile and ethyl acrylate, methyl methacrylate, butyl acrylate or 2-ethylbexyl acrylate. Vulcanizing mixes are made containing an organotin stabilizer, calcium stearate, antimony oxide, epoxy stabilizer, zinc oxide, wax, stearic acid, clay or silica, dioctylphthalate, chlorinated polyphenyl, sulphur, mercaptobenzothiazyl disulphide, tetramethyl thiuram disulphide, diphenyl guanidine and 4,4<SP>1</SP>-thiobis-(6-tert.- butyl-m-cresol).
Patent GB-945784-A (GB)
Title: Improvements in and relating to the electrodeposition of nickel
IPC: C25D3/16
Filed: 1962-11-20
Abstract: Nickel plating baths are improved by adding an acetylenic compound having an amide group, and regarded as alkyneoxyalkane amides or the corresponding alkadiynecompounds having the formula: <FORM:0945784/C3/1> where n is 0 or 1, R1 is H or an alkyl group of 1 to 11 C atoms, and R2 is either: <FORM:0945784/C3/2> where y is 1 to 20, w is 0 or 1 to 20, Z is H, alkyl or hydroxymethyl; and R3 is H, hydroxymethyl, or an alkyl radical of 1 to 11 C atoms.  R3 may also be: <FORM:0945784/C3/3> For example, 3-(b -oxypropionamide)-propyne-1; 1, 6 bis(b -oxyproprionamide) hexadiyne 2:4; 1:4 bis 10, 101 (4-7-10 trioxadecanoicamide butyne-2.  The nickel ion may be present in any form including fluo-borate and sulphamate. Preferably there is also added halogenated acetals of the type, trichloroethanal, and 1:1.diethoxy-2.2.2.trichloroethane. Optional additions include boric or formic acid, sodium formate, and wetting agents, e.g. sodium lauryl sulphonate, or the di-hexyl ester of sodium sulphosuccinic acid.  Plating conditions given are pH 3 to 4, temperature 100-140  DEG C., and C.D. 45.A.S.F. The plating may be applied to iron, steel, copper, brass, and especially zinc diecastings pre-coated with copper.
Patent GB-879250-A (GB)
Title: Mine anchor-line cutter
IPC: B63G7/04
Filed: 1959-12-28
Abstract: 879,250. Mines. MINE SAFETY APPLIANCES CO. Dec. 28, 1959 [Jan. 14, 1959], No. 43995/59. Class 9(2). A cutter, for a mine anchor-line (not shown), is characterized by at least one cutting element 22, movable longitudinally on a frame 2 towards an anvil 24 for receiving an anchor-line, and operable by an explosive charge 31, which is sealed against water by a ring 33 and actuated by a firing pin 36. In operation upon severance of a securing pin 52 by the anchor-line, a spring actuated plunger 50 exerts pressure upon water trapped in a passage 42 and thereby acts upon interconnected plungers 45, sealed by a ring 46, and 37 and the firing pin 36. A shear pin 57 is severed by the element 22 under high pressure from the charge 31.
Patent GB-1117976-A (GB)
Title: An apparatus incorporating a pivotal boom structure
IPC: E02F3/32
Filed: 1966-10-04
Abstract: 1,117,976. Shovel excavators. WARNER & SWASEY CO. 4 Oct., 1966 [3 March, 1966], No. 44300/66. Heading E1F. To allow of variation of the operating characteristics of a shovel excavator the dipper stick of the excavator is lockable in various positions of angular adjustment about a pivotal connection between the dipper stick and a member pivoted to a vertically swingable boom eccentrically of the pivotal connection about which the dipper stick can, when unlocked with respect to the member, be rotated by a ram extending between the boom and the dipper stick. The ram, when the dipper stick is locked to the member, controls the pivoting of the dipper stick member structure about the pivotal connection between the member and the boom.
Patent GB-1057453-A (GB)
Title: Electronic timepieces
IPC: G04C17/00
Filed: 1963-11-11
Abstract: 1,057,453. Circuit assemblies. P. VOGEL & CIE. Nov. 11, 1963 [Nov. 16, 1962], No. 44450/63. Heading H1R. [Also in Division G3] An electronic timepiece (see Division G3) comprises an oscillator unit 1, a frequency divider unit 2, a switching unit 3, and a time display unit 4, each unit comprising a layer of semi-conductive material, the layers being sandwiched together and having their interfaces insulated from each other except at selected points at which the units are electrically connected together. Various techniques for forming the units with the necessary circuit elements, are proposed. The elements may be formed by micro-modules on the surface of a germanium or silicon base. At discrete points on the surface, pin-point transistors, and resistors and capacitors, e.g., fire formed by known methods of heat treatment, diffusion of donor centres, electron bombardment or the like. Insulating layers between co-operating active surfaces may be formed by depositing thin films of, e.g., methyl methacrylate. The points where electrical contact has to be made are printed with a varnish through a screen and the surface bombarded with an electron beam so that the part not printed is polymerized and forms a very thin adhesive insulating layer. The layer comprising the display surface may have a base comprising a photosensitive compound such as cadmium sulphide. A subjacent layer for activating this, may be formed by a multiplicity of micro-filaments activated by a logical unit. Techniques associated with superconductivity including the use of devices such as the " cryotron " and " cryosar " are also suggested. In a typical timepiece, Fig. 2 (not shown), the oscillator unit 1 is a solid-state device providing an output of one pulse per second. The counting unit 2 is made up of binary elements comprising flip-flops. Switching unit 3 comprises relays (13) of known circuit construction as in Fig. 14 (not shown) controlling the hours and minutes display.
Patent GB-1010408-A (GB)
Title: Prestretched die drawing fixture for drawing die press
IPC: B21D25/02
Filed: 1961-12-13
Abstract: 1,010,408. Stamping; stretch forming. CYRIL BATH Ltd. Dec. 13, 1961 [Dec. 19, 1960], No. 44554/61. Addition to 959,093. Headings B3E and B3Q. A stretch forming fixture for a die drawing press of the kind comprising a frame structure 1, a bed or die carrying member 2 mounted thereon and a ram or second die carrying member 3 movable towards and away from said first die carrying member comprises gripping heads 31 disposed at spaced apart positions to grip opposed margins of the stocks, mounting means for said heads enabling at least one of the heads to be moved towards and away from the other by power energized driving means to tension the stock above its elastic limit before and during co-operation of the dies, said mounting means also enabling said heads to be moved in the same direction as the ram towards the bed and in timed relation with the ram or second die carrying member. Stamping dies 5 and 6 are mounted on the ram and bed respectively. Conventional reilient die cushions 7 are mounted beneath the bed 2. Each fixture comprises a frame 11 adjustably fixed to the bed 2, said frame 11 accommodating a vertically reciprocable elevator frame 12 supported on the lift rods 20 of the die cushions 7 in a predetermined position above the bed 2. Pusher posts 21 mounted on the ram engage the upper member 13 of the elevator frame and move it downwardly during the forming stroke. Each gripping head comprises an upper and lower jaw 38, 39 respectively actuated by hydraulic cylinder 44 mounted on a slide frame 30. The lower portion 32 of the slide frame comprises a plate 53 from which is suspended a body member 54 supporting hydraulic cylinders 57 actuated by a pump 69 through a reversing control valve 71 to move the gripping heads to tension or release the stock. In operation the stock is tensioned to the degree desired prior to the closure of the dies. While under tension the stock and the elevator frame is moved downwardly towards the lower die by the pusher posts on the ram. Thus the tensioned stock is laid over the lower die before or during die closure.
Patent GB-1447404-A (GB)
Title: Blast furnace and method of operating the same
IPC: C21B5/06
Filed: 1973-09-22
Abstract: 1447404 Blast furnace operation HB CLAFLIN 22nd Sept 1973 44574/73 Heading C7D A blast furnace is operated with an oxygen enriched blast introduced through the normal tuyeres while through two vertically spaced sets of auxiliary tuyeres located above the latter there is introduced an auxiliary reducing gas obtained by feeding a mixture of air, oxygen and uncleaned blast furnace top gas into a separate conversion furnace where it is combusted with carbonaceous fuel, the product being mixed with blast furnace top gas for temperature control before introduction to the blast furnace. The flow of gas to the uppermost set of tuyeres is so controlled that the temperature of the adjacent solid charge is maintained below 1000‹C. In a modification an uncleaned uncooled exhaust gas from a basic oxygen converter is also mixed with the gas stream before introduction to the conversion furnace, while only roll scale may be charged to the top of the latter. As illustrated, mixed gases are introduced into conversion furnace 31 through tuyeres 38 and react with a bed of coal, the resultant reducing gas being withdrawn through manifold 33 and passed to the auxiliary tuyeres 46, 47 of blast furnace 45. Top gas leaving the conversion furnace is recycled to the tuyeres of the latter while metal and slag resulting from the dust content of the gases fed to that furnace are tapped periodically.
Patent GB-1433397-A (GB)
Title: Receiver circuits for nuclear magnetic resonance analysers
IPC: G01R33/32
Filed: 1973-09-24
Abstract: 1433397 Filter circuits NIPPON ELECTRIC VARIAN Ltd 24 Sept 1973 [30 Sept 1972] 44641/73 Heading H3U [Also in Division G1] The signal pick-up coil of an NMR spectrometer is connected to a crystal resonator so as to be resonant at two frequencies, the crystal being such that at the higher of the two frequencies it acts as a capacitor and at the lower of the two it acts as an inductor. The two frequencies may be from a nucleus being investigated (e.g. 60 MHz) and a <SP>2</SP>H nucleus for field locking (e.g. 9 MHz). The narrow bandwidth of Ae crystal allows the fundamental frequency of the RF magnetic excitation to be eliminated. The impedance of the crystal is shown in Fig. 4; the higher frequency must lie above f p , the crystals parallel resonant frequency, and the lower frequency must lie between f p  and f o , the series resonant frequency of the crystal. Fig. 3 shows an embodiment in which the pickup coil 20 forms a resonant circuit with crystal 43 and capacitors 41, 42. The two resonant frequencies are passed to transistor 50 and separated by inductors and capacitors in the collector circuit to give outputs F 1 , F 2 . Equivalent circuits at these two frequencies are given, Figs. 5, 6 (not shown). In another embodiment, Figs. 9-11 (not shown), the two frequencies at extracted at opposite sides of the crystal and are separately amplified.
Patent GB-1440643-A (GB)
Title: Method of producint a mis structure
IPC: H01L21/308
Filed: 1973-09-24
Abstract: 1440643 Semi-conductor devices HITACHI Ltd 24 Sept 1973 [27 Sept 1972] 44716/73 Heading H1K Deleterious overhang 4c (Fig. 3) of the conductor layer 4a over the edge of the underlying insulator film 3a in an MIS structure in which the layers 4a, 3a have both been etched through, e.g. to form the edge of the mask defining the gate self-aligned diffusion of region 6, is removed by an additional etching of the entire conductor 4a using an etchant which preferentially attacks the conductor layer 4a, producing the configuration 4b shown in Fig. 2. Preferably a thin oxide layer 10 is then formed on the conductor layer 4b, and a layer 7 of phospho-silicate gate or silicon oxide is deposited thereon. The invention may be applied to IGFET manufacture, the region 6 and a similar region at the other end of the gate structure forming source and drain regions. MIS diodes and integrated circuits are also referred to. The conductor layer 4b is preferably polycrystalline Si, but Mo is also referred to. The insulator film 3a may be silicon oxide and/or nitride. The region 6 may be formed either before or after the additional etching step on the conductor layer 4b.
Patent GB-1104255-A (GB)
Title: Crutches
Inventor: DOHERTY IAN
IPC: A61H3/02
Filed: 1964-11-03
Abstract: 1,104,255. Crutches. EDWARD DOHERTY & SONS Ltd. 3 Nov., 1965 [3 Nov., 1964], No. 44753/64. Heading A5R. A crutch comprises two spaced-apart members 10, 12 of moulded laminated wood joined together with an armpit rest 14, a hand-grip 22, and a leg 16, the hand-grip 22 being adjustably secured between parallel portions of the members 10, 12. The leg 16 may also be adjustably secured to the members 10, 12 and instead of being curved as shown, the members 10, 12 may be formed with a step or shoulder. The members 10, 12 may be tubes. The hand-grip and leg may also be of wood.
Patent GB-1048210-A (GB)
Title: Improvements relating to the curing of chloroprene rubber
Inventor: THOMPSON SAMUEL ARTHUR MERLIN
IPC: C08K5/405
Filed: 1965-10-22
Abstract: A non-sulphur modified polychloroprene or polychloroprene-base elastomer is cured with a curing agent containing at least 1% magnesium oxide and, as accelerator, up to 5% of 1-dimethyl-thiocarbamylimidazolidine-2-thione. The composition may also contain fillers and plasticizers and the usual vulcanizing ingredients. The compositions may be injection moulded.
Patent GB-1393229-A (GB)
Title: Side loader
IPC: B60T17/22
Filed: 1973-09-27
Abstract: 1393229 Side loaders F BENGEL A SAUTER and U SAUTER [trading as ALBERT IRION NACHFOLGER] 27 Sept 1973 45321/73 Heading B8H [Also in Division F2] A side loader comprises a steering 2 and driven 3 axle, the wheel 5 on the driven axle 3 being capable of being braked prior to the wheel 6 on the same axle 3 being braked so that when the lifting platform 7 is extended the wheel 5 (which is on the side of the side loader opposite to the platform 7), can be prevented from spinning. On actuation of the main braking fluid cylinder 12 in the driver's cab 4 fluid passes through a connection 15, Fig. 2, in an hydraulic pressure distributor 11 directly to a connection 16 leading to the braking cylinder for the wheel 5 so that the driver can brake the wheel 5 up to a maximum predetermined value determined by a spring loaded pressure relief valve 18 such that on further actuation of the cylinder 12 the valve 18 opens against the action of a spring 19 to permit fluid to pass from the connection 15 to a connection 17 leading to the braking cylinder for the wheel 6. The said predetermined value may be adjusted by means of a screw 21 on which the spring 19 is supported. When the valve 18 opens a switch 25 actuates a light 13 in the driver's cab 4. Forks 9 are mounted on the lifting platform 7 and are raised and lowered by means of a lifting carriage 8.
Patent GB-1129456-A (GB)
Title: Improvements in or relating to the preparation of polymers
IPC: C08G69/46
Filed: 1965-10-27
Abstract: 1,129,456. Purifying polyamides and polyesters. SNIA VISCOSA SOCIETA' NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. 27 Oct., 1965 [30 Oct., 1964], No. 45473/65. Heading C3R. In processes for stripping volatile fractions from, and increasing the molecular weight of, polyamides and polyesters wherein the molten polymer falls freely as liquid threads or droplets through an inert gaseous atmosphere in an enclosure the material collected at the bottom of the enclosure is recycled. The inert gaseous atmosphere may be stripped and also recycled. In Fig. 2 crude polymer from line 13 and recycled polymer pumped through line 18<SP>1</SP> by pump 19<SP>1</SP> falls as threads B and is collected in stirred autoclave C<SP>1</SP> for recycling or discharge. An inert gas (N 2 , CO 2  or superheated steam) is heated at F and introduced into enclosure A through foraminous ring 15, discharged through line 16 and recycled via condenser D in line 26. Fig. 1 (not shown) is similar except that autoclave C<SP>1</SP> is omitted, the polymer collecting in and being recycled or discharged from the bottom of enclosure A.
Patent GB-1206784-A (GB)
Title: Improvements in or relating to brakes for road vehicles with trailers
IPC: B60T13/40
Filed: 1967-10-05
Abstract: 1,206,784. Fluid pressure brakes. SOC. DES TRACTEURS F.A.R. 5 Oct., 1967 [5 Oct., 1966], No. 45579/67. Heading F2F. In a braking system for a tractor and trailer, operation of the pedal 7 emits compressed air from reservoirs 1, 2 under control of valves 5 to the main braking system for the tractor and trailer. In the trailer, the pressure in line 10 opens valve 11, admitting compressed air from a reservoir 15 to an actuator 12 for brakes 13. Application of a parking brake lever 20 closes a valve 19 which isolates the reservoir 2 from the actuator 28 and allows the trailer brakes to be applied by spring 29. This action also occurs following operation of an uncoupling lever 17 or if lines 22, 24 should become fractured. A dual non-return valve 42 prevents simultaneous operation of both methods of actuating the trailer brakes.
Patent GB-1367217-A (GB)
Title: Manhole cover
IPC: E02D29/14
Filed: 1972-10-04
Abstract: 1367217 Manhole covers WILLIAM CHAHLEY Ltd 4 Oct 1972 [10 Nov 1971] 45761/72 Heading E1G A manhole cover 1, Fig. 4, shown circular, has on its underside two radially-slidable locking bars 4 actuated by rack and pinion mechanism 22-21 to engage under a seating ledge; Fig. 3 (not shown) on a frame (3), the mechanism itself being locked by rotation of a cup which is concentric with the pinion and which carries a dog tooth 31 engageable with the rack teeth. The pinion and cup have formations allowing them to be turned by respective tools. As shown in Fig. 5 the pinion 21 is supported in bearings 17, 28 in the cup 24 on which the dog 31 is formed and which is itself mounted in bearings 27 in a member 7-8 fixed to the cover 1. Angular displacement of the cup 24 is limited by a bottom projection 35 engaging an arcuate slot, Fig. 10 (not shown) and by a detent 32. The centre of the cup has a Y-shaped opening 30, Fig. 9 (not shown) whereby the cup 24 and its dog 31 can only be turned to and from the racklocking position by a first special tool. The top of pinion 21 has formations 23 for a second special tool. As shown the pinion is covered by nuts 18, 12 requiring third and fourth special tools and by a rubber plug 10.
Patent GB-1131142-A (GB)
Title: Improvements in or relating to cables for transmitting high frequency currents
IPC: H01B11/10
Filed: 1964-11-10
Abstract: 1,131,142. Flexible pipes. R. C. MILDNER. 9 Nov., 1965 [10 Nov., 1964], No. 45802/64. Heading F2P. [Also in Divisions B5 and H1]  A flexible tubular conductor for a cable is formed by longitudinally folding a tape of a laminate which comprises a layer of synthetic plastics material 8 of from 5 to 20 mil. thick, an electrically conducting metallic layer 7 of from ¢ to 3 mil. thick extending completely over one side of the plastics layer and an electrically conducting metallic region of from ¢ to 3 mil. thick on the other side of the plastics layer, and the metallic region, which may or may not extend completely over the plastics layer, is so formed at one edge that conductive contact is made at the overlap between the metallic layer and region so that a metal path extends circumferentially around the tube and across the overlap. The tube is either corrugated or is supported by an outer jacket to prevent buckling thereof. The metal may be copper, silver or aluminium and the synthetic plastics material may be polyethylene, polypropylene or polystyrene or laminates of these reinforced with glass-fibre.
Patent GB-1365454-A (GB)
Title: Process for the preparation od aromatic polyamines
IPC: C08G12/00
Filed: 1972-10-05
Abstract: 1365454 Aromatic polyamines BAYER AG 5 Oct 1972 [7 Oct 1971] 45885/72 Heading C2C The invention comprises a process for the preparation of aromatic polyamines wherein one or more aromatic amines are condensed with formaldehyde in the presence of acid catalysts in which the reaction is carried out in two stages, the first stage being carried out in the presence of a volatile solvent, and under reduced pressure, the vacuum being such that the temperature of the reaction mixture does not rise above 40‹ C., and the second stage being carried out at a temperature of at least 80‹ C.