baber/WOPTO huggingface dataset:
Patent GB-1408772-A (GB)
Title: Electrostatographic copy sheet methods of making and using  the same and electroconductive layers and coating compositions  for use in same
IPC: G03G5/10
Filed: 1972-10-06
Abstract: 1408772 Electroconductive paper WEYERHAEUSER CO 6 Oct 1972 [6 Oct 1971 (2)] 46271/72 Heading B2E [Also in Division C3] An electroconductive coated paper sheet suitable for use in producing electrostatographic copy sheets comprises a sheet of paper having a coating which comprises (i) an organic filmforming polymer, (ii) a quaternary ammonium salt having a cation of the formula wherein R' is hydroxyethyl, glycidyl, or 2- hydroxypropyl, R" is methyl or ethyl, and A is 1, 2 or 3. Suitable anions are chloride, bromide, fluoride, sulphate, carbonate, acetate and nitrate. Preferred compounds are choline chloride, glycidyl trimethylammonium chloride, 2- hydroxypropyl trimethylammonium chloride, methyl tris(hydroxyethyl)ammonium chloride, and dimethyl dihydroxyethyl ammonium chloride. Preferred polymers are protein and styrene/ maleic acid, acid salt or ester copolymers, but others specified are as the latter but replacing styrene by vinyl acetate or butadiene, polyvinylalcohols, polyvinylacetates, starches, gums, caseins, alginates, cellulose polymers, styrene/ butadiene copolymers, polyamino and quaternary ammonium copolymers, polyphosphate and polyphosphonium polymers, polysulphate and polysulphonium polymers, polyvinyl pyrrolidones, polyethylenes, polypropylenes, PVC, polystyrenes, polyamides, ethylene/vinyl acetate copolymers and acrylic polymers. The coating composition may be in the form of a solid mixture or an emulsion. In the examples, choline chloride, and polymers selected from polyvinyl alcohol, protein, starch, and a styrene/maleic acid half ester copolymer, are used, together with other ingredients. A further coating of a dielectric or photoconductive substance such as ZnO mixed with a binder resin and a dye is applied to the already coated sheet, to form an electrostatographic copy sheet. In the examples kraft paper is used.
Patent GB-1060296-A (GB)
Title: Improvements in the production of papermaker's felt
IPC: D06Q1/00
Filed: 1963-11-26
Abstract: A papermaker's felt is made by weaving a fabric from weft yarns having a particular susceptibility to resin treatment and warp yarns having a different susceptibility to resin treatment and treating the woven fabric with a stiffening resin so that due to the different treatment susceptibilities the yarns in one direction are stiffened while the yarns in the other direction remain relatively flexible. The yarns which are susceptible to the resin treatment may be made from cotton, wool, nylon polyacrylonitrile, polyvinyl acetate or polyvinyl chloride fibres and the yarns not susceptible to the resin treatment may be made from polyester fibres.  The fabric may be an endless fabric woven with cross-wise warp yarns which react with the resin and lengthwise weft yarns which do not react with the resin so that upon treatment the warp yarns are stiffened and the weft yarns remain flexible.  Suitable resins are epoxy, phenolic-aldehyde and amino-aldehyde resins.  The fabric may be treated with a solution containing 3-40% by weight of the resin and then cured by heating. The treatment may be carried out in two stages in which the fabric is first treated with a phenolic-aldehyde resin, dried, partially cured, treated with an amino-aldehyde resin and then cured, the treatment if desired being carried out while the fabric is held under tension.
Patent GB-1017128-A (GB)
Title: Improvements in or relating to teaching devices
Inventor: DONALDSON HARRY WEST
IPC: G09B3/04
Filed: 1964-11-17
Abstract: 1,017,128. Educational appliances. COUNTY COUNCIL OF SUTHERLAND. Nov. 17, 1964, No. 46701/64. Heading G5G. A question and answer device comprises a holder including a plurality of sleeves having transparent portions 15 and opaque portions 14 and sliders 16 carrying question-and-answer material on at least one surface thereof the length of the sliders exceeding that of the holder to provide for sliding the sliders between a " question " position when one edge of the sliders is flush with an end B of the holder in which position the answers are concealed behind the opaque portions 14 and an " answer " position in which the other end of the sliders is flush with the other end A of the holder and in which the answer is revealed (Fig. 6, not shown). In order that both sides of the device may be used the obverse side of the holder may have opaque portions provided laterally opposite to those shown so that to begin with on the obverse side it is disposed in the " answer " position and when all questions on the facing side have been answered the obverse side is in the " question " position in readiness for the continuation of the teaching programme. In another embodiment (in Fig. 3, not shown) the holder may comprise one sleeve only.
Patent GB-1289358-A (GB)
IPC: C07D499/00
Filed: 1969-09-24
Abstract: 1289358 Penicillins; antibacterial compositions TAKEDA YAKUHIN KOGYO KK 24 Sept 1969 [28 Sept 1968] 46937/69 Heading C2A Penicillins of the general formula wherein R 1  and R 2  are the same or different and each represents hydrogen, C 2-12  alkyl, aralkyl or a mono- or poly-substituted or unsubstituted phenyl, pyridyl, naphthyl or thienyl, the substituents being nitro, sulpho, carboxyl, halo, C 1-6  alkyl or C 1-6  alkoxy and, in the case of polysubstitution being the same or different, or alternatively, R 1  and R 2  together represent a polymethylene group of 4 to 6 carbon atoms, and pharmaceutically acceptable salts or acid salts thereof, are prepared by reacting 6-aminopenicillanic acid in free or salt form or a silyl derivative thereof with an acylating agent derived from an α-sulphocarboxylic acid having the general formula and, if desired, converting the penicillin compound by treatment with a base to a pharmaceutically acceptable salt or acid salt thereof such as Na, K, Mg, Ca, or Al salts or salts formed with ammonia, triethylamine, procaine or dibenzylamine. The α-sulphocarboxylic acid may be in the form of its halide, acid anhydride, azide, ester, thioester, azolide or the α-sulphocarboxylic acid may be coupled with an N,N- carbonyl ditriazole, a carbodiimido, a ketenimine or an isoxazolium salt. The optically active D isomers of the above penicillins containing an asymmetrical carbon atom may be prepared by (1) reacting 6-aminopenicillanic acid or its silylated derivative with an acylating agent derived from the optically active D isomer of a suitable α-sulphocarboxylic acid or (2) reacting 6-amino-penicillanic acid or its silylated derivative with an acylating agent derived from a suitable racemic α-sulphocarboxylic acid to produce a racemic penicillin and subsequently recovering the optically active D isomer of the penicillin by means of chromatography or recrystallization. Antibacterial compositions having activity against Gram-positive and Gram-negative bacteria comprise the above penicillins of Formula I. The compositions may be administered orally or parenterally in the form of capsules, tablets, solutions or suspensions.
Patent GB-1498002-A (GB)
Title: Stringed instrument of the guitar and banjo family
IPC: G10D3/06
Filed: 1977-06-14
Abstract: 1498002 Stringed musical instruments M J ROBINSON 14 June 1977 46958/73 Heading G5J A fretted musical instrument has two frets F, H which respectively raise the pitch of the strings 5 and 7 semitones respectively. The strings are tuned to a chord. Fret F is preferably slightly higher than fret H. The sound box may be replaced by electrical pick-ups.
Patent GB-1162580-A (GB)
Title: Silanized Crystalline Alumino-Silicates
IPC: B01J20/18
Filed: 1967-10-16
Abstract: 1,162,580. Separating gas mixtures. TEXACO DEVELOPMENT CORP. 16 Oct., 1967 [21 Nov., 1966], No. 46979/67. Heading B1L. [Also in Division C1] A crystalline metal aluminosilicate molecular sieve having a pore size of 3-15Š which has been surface treated with an organosilicon compound (see Division C1) is used to adsorb normal hydrocarbons from a mixture of normal and non-normal C 7 -C 22  hydrocarbons employing the customary adsorption/desorption or gas chromatography techniques. Using the former technique, the sieve may be contacted with the mixture of hydrocarbons at 20 psig, then purged at 5 psig to remove any surfaceadsorbed non-normals, then desorbed at 30 psig to remove the normals. The gas used to purge and desorb may be a normal hydrocarbon with 1-3 carbon atoms less than the lightest hydrocarbon in the mixture, or 1-8 carbon atoms more than the heaviest. In gas chromatographic separations, the carrier gas used is helium. The exemplified mixture in both cases is a C 10 -C 13  kerosene fraction Exemplified organosilicon treating agents are trimethyl chlorosilane and hexamethyldisilazane.
Patent GB-1245451-A (GB)
Title: Improvements in or relating to rolling bearings
IPC: F16C19/16
Filed: 1968-10-04
Abstract: 1,245,451. Rolling bearings. SKF KUGELLAGERFABRIKEN G.m.b.H. 4 Oct., 1968 [7 Oct., 1967], No. 47143/68. Heading F2A. A rolling bearing assembly has races 1, 2 of sheet metal with the outer race 1 housed in a sheet metal sleeve 10. Each race has, in radial cross-section, two radially spaced limbs 5, 6, 7, 8 extending axially from a base, the limbs of one race extending in the opposite direction from the limbs of the other race. Movement in one axial direction is prevented by contact between the races and the rolling elements 4. Radially extending flanges 11, 7 are provided on each race for restricting axial movement in the other direction. The flanges on the races may be provided on auxiliary members (19, Fig. 3, not shown) secured to the races. The flanges may be so shaped as to provide a labyrinth seal between the races or a sealing ring (17, Fig. 2, not shown) may be provided between the flanges. The outer race and the sleeve may be so shaped as to define a chamber 13 between them containing lubricant or a vibration damping material. When lubricant is contained in the chamber, apertures 14, 15 are provided in the outer race to permit flow of lubricant to the bearing.
Patent GB-1465307-A (GB)
Title: Process for preparation of enzymes
IPC: A23F5/16
Filed: 1974-11-01
Abstract: 1465307 Drain cleaning composition AMANO PHARMACEUTICAL CO Ltd 1 Nov 1974 [10 Nov 1973] 47325/74 Heading C5D [Also in Divisions C1 and C3] The novel enzyme cellulase 212 whose activity in the alkaline region within a broad pH range of from 4À5 to 9À0 renders it very effective as an ingredient in cleaning agents, is prepared by aerobically culturing the strain Aeromonas sp. No. 212 (FERM-P No. 2306 and ATCC No. 31085) in a culture medium maintained at a pH of 5-10 and a temperature of 27-45‹ C. for 1-5 days and recovering the enzyme by conventional procedures of adsorption and gel filtration. Example 8 discloses a cleaning agent useful for cleaning drains clogged with cellulosic material and consisting of 50 parts by weight crude powdered cellulase 212, 10 parts primary sodium phosphate, 35 parts secondary sodium phosphate and 5 parts of polyoxyethylene glycol.
Patent GB-1400263-A (GB)
Title: Carburettor having an anti-running-on control
IPC: F02D9/02
Filed: 1972-10-13
Abstract: 1400263 Spray carburetters FORD MOTOR CO Ltd 13 Oct 1972 [29 Nov 1971] 47328/72 Heading F1B In a carburetter having a throttle valve rotatable from a closed position 34 through an idle position 36 to a wide open position the throttle control means includes manifold vacuum responsive means connected to a plunger 56 operably engageable with the throttle valve, the conduit 52 between the intake passage and vacuum responsive means includes means to vent the vacuum in response to engine shut-down and the vacuum responsive means operates on engine shut-down to initially close the throttle to prevent "running-on" and subsequently permits movement of the throttle to the idle position 36 for engine starting. When the engine is cranked for starting, the turning of the ignition key energizes solenoid 98 to move valve 92 to the position shown. Manifold vacuum in chambers 46 and 48 slowly equalizes via orifice 64. When the ignition is turned off solenoid 98 is de-energized and valve 92 vents line 52 and chamber 48 to atmosphere. Because of orifice 64 the vacuum in  chamber 46 bleeds more slowly to atmosphere  and the delay allows retraction of the diaphragm 50 and plunger 56 and closure of the throttle by spring 40 to prevent "running-on". When the vacuum in chamber 46 finally decays the spring  70 returns the throttle to the idle position 36 for subsequent starting.
Patent GB-1197387-A (GB)
Title: Improvements relating to Stackable Chairs made of Synthetic Plastics Materials
Inventor: LOHMEYER HARTMUT
IPC: A47C5/12
Filed: 1968-10-07
Abstract: 1,197,387. Seats. H. LOHMEYER. 7 Oct., 1968 [5 Oct., 1967], No. 47357/68. Headings A4H, A4J. A chair capable of being stacked with others in nesting relationships, is pressed, in a single operation, from a single sheet of plastics material. The chair has an integrally formed pedestal 3 and a flared foot 4.
Patent GB-1193848-A (GB)
Title: Improvements in and relating to Extrusion Presses
Inventor: RUSSELL JOHN PATRICK
IPC: B21C31/00
Filed: 1967-10-18
Abstract: 1,193,848. Extrusion press. DAVY & UNITED ENG. CO. Ltd. 18 Oct., 1968 [18 Oct., 1967], No. 47392/67. Heading B3P. [Also in Division B5] An extrusion press comprises a container 1 for receiving a billet 6, a die 4 positioned at one end of the container, a ram positioned at the other end of the container and having a pressing stem 7 displaceable towards and away from the die 4, means for producing relative movement between the die and the container in a direction parallel to the longitudinal axis of the container and means arranged to continuously produce an electrical signal which is representative of the position of the pressing stem 7 with respect to the die 4 and/or means arranged to continuously produce an electrical signal which is representative of the position of the container 1 with respect to the die. After extrusion of the billet 6 the container 1 is moved relative to the ram away from the die 4 and a crop shear 12 separates the discard and a pressure disc 8 from the die face. The means for producing a continuous electric signal comprises a stationary potentiometer 15 whose wiper 14 is coupled to the pressing stem 7 so that a signal on the wiper is representative of the position of the stem 7 with respect to the stationary die 4. Similarly a wiper 16 of a stationary potentiometer 17 is coupled to the container 1.
Patent GB-1279508-A (GB)
Title: Transmission system
Inventor: SCHOOLCRAFT RALPH WILLIAM
IPC: G10L19/00
Filed: 1970-10-07
Abstract: 1279508 Pulse modulation systems MAGNAVOX CO 7 Oct 1970 [9 Oct 1969] 47758/70 Heading H4L In a pulse duration modulation system a microphone input (b), Fig. 2, is supplied via amplifier 10 and filter 12 to a sample and hold circuit 16, Fig. 1, producing output (c) under the control of clock pulses (a). The clock pulses are applied to a sawtooth generator 14 whose output (d) is supplied to a comparator 18 together with the output (c) to provide duration modulated pulses (e). The clock signal frequency is halved at 20 and supplied to an Exclusive OR gate 22 receiving also the signal (e) and providing an output (f) in which the transitions coincide with the trailing edges of the signal (e) and the signal (f) phase modulates at 24 a carrier wave from oscillator 26 to produce signal (g) for transmission. At the receiver, Fig. 2, the signal is demodulated at 28, limited at 30 and supplied to an Exclusive OR circuit 32 receiving also a signal at one half the frequency of the clock signal (h) which has been recovered from the received signal. The output (k) of gate 32 is a replica of the original PDM signal and is supplied to an "integrate and dump" circuit 35 controlled via delay 40 by the clock pulses to produce signal (l). Signal (l) is supplied to a sample and hold circuit 42 producing signal (m) which via filter 44 produces signal (n) for utilization via amplifier 46. Since the average value of the voice information in the signal (k) is zero when the inputs to gate 32 are correctly phased the output (k) is applied to an integrator 36 to control the frequency clock oscillator 38. The bandwidth of the limiter 30 is arranged to be relatively wide and this is stated to reduce noise.
Patent GB-1220260-A (GB)
Title: Improvements in or relating to cold-rolled steel strip and sheet
IPC: C22C38/02
Filed: 1968-10-09
Abstract: 1,220,260. Making plates and sheets; altering molecular structure. CSEPELI FEMMU. 9 Oct., 1968 [9 Oct., 1967], No. 47940/68. Headings B3A and B3V. [Also in Division C7] Steel strip or sheet having isotropic magnetic properties and containing Si 0À05-4% together with Al 0À05-0À5% and/or Ga 3-200 p.p.m. is manufactured by (a) hot-rolling ingot, (b) cold-rolling, (c) heating to an annealing temperature of at least 700‹ C. at a rate of at least 150‹ C./min., (d) cold-rolling with a thickness reduction of 3-10%, and then (e) heating at 800-1000‹ C. in a reducing or inert atmosphere. After step (e), the material may be exposed at 600-300‹ C. to a humid atmosphere in order to form an insulating oxide layer on the surface thereof. Finally, stampings may be formed and annealed at 800-1150‹ C. in a reducing or inert atmosphere, and then, during cooling, they may be subjected to a rotating magnetic field.
Patent GB-1093414-A (GB)
Title: Explosion-preventing, sound-damping arrangement for portable machine assemblies driven by gas turbines
IPC: F02C3/32
Filed: 1964-11-27
Abstract: 1,093,414. Portable engines. KLOCKNER HUMBOLDT DEUTZ A.G. Nov. 27, 1964 [Jan. 16, 1964], No. 48286/64. Heading B7H. [Also in Division F1] A portable pump installation comprises a gas turbine 3 driving a centrifugal pump 1 through a transmission 2 and is mounted upon a frame 5 supported on skids 4. Air is supplied to the turbine through a duct 6 and the exhaust pipe of the gas turbine is extended by a duct 8 enclosed within a container 11 having inner and outer walls 13, 12 and a gas seal 9. Air is drawn into the duct 8 from the double walls of the container 11 and over guide members 15 which cause it to mix with and cool the exhaust gases. The installation is for use in an atmosphere of explosive gases above which the air intake and exhaust extend. In modifications, Figs. 2 and 3, flameproof air filters 21 and 17 are provided through which the exhaust cooling air passes and in Fig. 4 the cooling air is inspired from a box 25 within which the gas turbine is located. In another modification, a flexible exhaust duct is employed.
Patent GB-1177159-A (GB)
Title: Improvements in Pneumatic Tyres having a Reinforced Breaker Layer
IPC: B60C9/20
Filed: 1967-10-24
Abstract: 1,177,159. Pneumatic tyres. PNEUMATIQUES, CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER-COLOMBES. 24 Oct., 1967 [28 Oct., 1966], No. 48347/67. Heading B7C. A radial ply tyre is provided with a breaker layer reinforcement 3 comprising layers 6 formed of cables or wires which extend in a generally circumferential direction and layers 7 formed of cables or wires which extend substantially transversely to the mid-circumferential plane and has a cushion 11 of rubber interposed between the carcass reinforcing plies and the breaker layer reinforcement 3. The cushion or rubber may be cellular and/or loaded with fibres. ' In a modification, see Fig. 2 (not shown), ), the cushion of rubber is an extension of the sidewalls of the tyre and further cushioning parts are provided at the edges of the layers forming the breaker layer reinforcement.
Patent GB-1446759-A (GB)
Title: Liquid pressure braking systems
IPC: B60T8/18
Filed: 1973-10-18
Abstract: 1446759 Load responsive brakes AUTOMOTIVE PRODUCTS Ltd 21 Oct 1974 [18 Oct 1973] 48636/73 Heading F2F A load responsive braking system includes valve operating mechanism in which a valve 15 is mounted on a vehicle body and a spring 39 acts between levers 22, 31 having pivots fixed in relation to the vehicle body, the first lever 22 being linked to a wheel carrying component and the second lever 31 acting on a movable component of the valve, the angle between the line of action of the spring and a line passing through the pivot 19 of the second lever and a point about which the said line of action moves angularly relative to that lever being substantially less than 90 degrees and preferably less than 50 degrees. In setting up the mechanism the levers are held in a predetermined angular relation by means of a caliper engaging holes 56, 57 in the levers while the distance between abutment surfaces on the levers and valve is adjusted by means of an adjustable tappet 38.
Patent GB-1134287-A (GB)
Title: Cigarette lighters
IPC: F23Q2/36
Filed: 1967-10-26
Abstract: 1,134,287. Smokers' lighters. SOC. FRANCOHISPANO-AMERICAINE FRANCISPAM. 26 Oct., 1967 [9 Nov., 1966; 8 March, 1967], No. 48739/67. Heading F4F. A cigarette lighter comprises a girdle 3 carrying the actuating mechanism, a reservoir 5 of compressed gas and two shells 1, 2 which form the external casing, the girdle 3 carrying a locking device or catch assembly which unites the reservoir and the shells to the girdle. A leaf spring 10 is secured to a tag 9 passing through a slot in the girdle and its upper end is clamped between the girdle and a locking device formed as a wedge 13 linked by a stern 14 to a pushbutton 17.
Patent GB-1409541-A (GB)
Title: Acoutstic damping of machine tools
IPC: B23B13/08
Filed: 1972-10-23
Abstract: 1409541 Sound insulation SKF (UK) Ltd 5 July 1973 [17 July 1972 23 Oct 1972] 33291/72 and 48743/72 Headings F2P and F2X [Also in Division B3] The noise emitted by a machine tool, e.g. a multi-spindle automatic lathe, having feed stock rotating within a stock-carrying tube is reduced by surrounding the outside of the stock-carrying tube by a closely fitting sheath of plastics material. The sheath is split longitudinally into two part-cylindrical segments, such as the segment 5 shown in Fig. 2 which is formed as an extrusion out of rigid p.v.c. Each of the segments 5 is formed with a rebate 6 in the external face of one axially extending edge and a rebate 7 in the internal face of the other axially extending edge. The provision of the rebates 6, 7 forms tongues 8, 9 along the axially extending edges such that when two of the segments 5 are fitted together the tongue 9 of one segment fits in and fills the rebate 6 of the other segment, and similarly the tongue 8 fits in and fills the rebate 7. Because the segments 5 extend angularly for more than 180 degrees around the stock-carrying tube, they have to be snapped into position over the tube and this is possible because of the resilience of the plastics material of which the segments are made. In the alternative embodiment shown in Fig. 4, each segment 10 has its axially extending edges castellated in the form of projections 11 separated by spaces 12. Thus two identical segments, one of which is arranged the opposite way round from the other, can be fitted together with the projections 11 of one segment entering the spaces 12 of the other segment. The segments 10 are formed as individual mouldings out of glass fibre-reinforced polyester resin. As with the first embodiment, the segments 10 extend angularly for more than 180 degrees and therefore have to be snapped over the stock-carrying tube.
Patent GB-1395736-A (GB)
Title: Storage tanks
IPC: B65D88/06
Filed: 1972-10-23
Abstract: 1395736 Tanks with floating roofs CHICAGO BRIDGE & IRON CO 23 Oct 1972 [31 Jan 1972] 48754/72 Heading E1T In a tank having an outer roof 13 and an internal floating roof 15 which is adapted in its lowermost position to rest on supports above the level of the liquid 17, a vent 18, 19 is provided having ports 20 in communication with the liquid, ports 21 in communication with the space between the liquid and the roof 15 and, if desired, a float 25. The vent passes through a seal 22, 23 in the floating roof 15 and has stops 26 to limit the lowermost position of the float 25. The roof 15 in the non-floating position rests on supports connected to the peripheral wall of the tank.