baber/WOPTO huggingface dataset:
Patent GB-1408906-A (GB)
Title: Control apparatus for a load handling device
IPC: B62D37/00
Filed: 1972-08-24
Abstract: 1408906 Stabilizers MASSEY-FERGUSON Inc 24 Aug 1972 [26 Aug 1971] 39477/72 Heading B7J [Also in Divisions B8 and G3] In a load handling device such as a fork lift truck having a load lifting device 38 for raising or lowering a load L in a generally vertical direction and stabilizing arms 28, 30 movable by motor means such as double-acting hydraulic piston-and-cylinder units 34, 36 to engage the ground G, levelling control is effected by control apparatus including an attitude sensing and signalling means 112 which, upon detecting deviation of device 38 to either side of a vertical plane, sends a signal to a solenoid-operated control valve (94), Fig. 3 (not shown), which cuts off supply of pressure fluid to the device 38 while commencing supply to the appropriate motor means so that the arms 28, 30 restore the lifting device 38 to an upright attitude before vertical movement of the load L can restart. The device 38 comprises a forked support 44 for the load L, raiseable and lowerable on a telescopic mast assembly 40 by an hydraulic cylinder 82 and piston-rod 86. The lift cylinder 82 and the cylinders of units 34, 36 are powered by a common hydraulic system, Fig. 3 (not shown), including the control valve (94) which has three alternative positions each allowing supply to a respective one of the cylinders at 34, 36 or 82 only.
Patent GB-1525231-A (GB)
Title: Electrostatic recording material
IPC: G03G5/14
Filed: 1974-09-10
Abstract: 1525231 Electrostatic recording materials FELIX SCHOELLER 22 Aug 1975 [10 Sept 1974] 39505/74 Heading B2E [Also in Division G2] An electrostatic recording material camprising (i) an electrically conductive support or preferably a support with a conductive layer, (ii) a barrier layer preventing migration of ions and (iii) a dielectric layer and layer (ii) being formed in situ by reaction of components in layers (i) and (iii), both layers having been applied from the aqueous phase. As exemplified, layer (i) contains a conductive polymer with quaternary ammonium salts and layer (iv) is an aqueous dispersion of polyacrylic acid and styrene/butadiene copolymer or vinyl acetate-crotonic acid copolymer alone or with an anionic dispersion of styrene/butadiene copolymer or polybutadiene so a salt is formed at the interface and thus produces barrier layer (ii), other specified reactants are a blocked isocyanate in layer (i) and a diol in layer (iii) and Al salts in layer (i) with polyamide/epichlorohydrins in layer (iii). The exemplified support is paper with a surface coat of clay, starch and melamine/formaldehyde resin and then a conductive layer (i) of clay, starch and conductive polymer is applied.
Patent GB-1002185-A (GB)
Title: Improvements in and relating to epoxy resins
IPC: C08G59/14
Filed: 1961-11-06
Abstract: A curable composition comprises a polyepoxide and a compound of formula <FORM:1002185/C3/1> in which R, R1, R2 and R3 are hydrogen, alkyl, alkenyl, haloalkenyl or haloalkyl of 1 to 8 carbon atoms; x is a number from 1 to 8; and Y is hydrogen or a radical of formula <FORM:1002185/C3/2> The products are flame-resistant.  The Specification gives lists of suitable polyepoxides, acidic or basic curing catalysts, and active organic hardeners such as polycarboxylic acids or anhydrides, polyols, polyisocyanates, polyisothiocyanates, and polyacyl halides.  Monoepoxides, e.g. styrene oxide, o-, m- or p-divinylbenzene monoxide, allyl glycidyl ether, 1,2-epoxy-4-vinylcyclohexane, butadiene monoxide or isobutylene oxide may be included in the compositions.  In a typical example, dicyclopentadiene dioxide, maleic anhydride and an adduct of 3-chloro-1,2-epoxypropane and phosphoric acid were heated together and the solution cast to form self-extinguishing bars of resin. Other examples are as polyepoxide; the diglycidyl ether of 2,2-bis-(4-hydroxyphenyl) propane; bis - (3,4 - epoxy - 6 - methylcyclohexylmethyl) adipate; 3,4 - epoxy - 6 - methylcyclohexylmethyl - 3,4 - epoxy - 6 - methylcyclohexanecarboxylate; as organic hardener: methylbicyclo [2,2,1] heptene-2-3-dicarboxylic anhydride; hexahydrophthalic anhydride; phthalic anhydride; and a mixture of maleic anhydride with trimethylol propane. As curing catalyst: a boron trifluoride-monoethylamine complex; and as phosphorus-containing additives: a 3-chloro-1,2-epoxypropane adduct of anhydrous phosphoric acid capped with ethylene oxide of formula <FORM:1002185/C3/3> a similar ethylene oxide adduct capped with 3-chloro-1,2-epoxypropane of formula <FORM:1002185/C3/4> ethylene oxide adducts of syrupy or anhydrous phosphoric acid; or an adduct of 1,2-epoxypropane with phosphoric acid.ALSO:Phosphorus-containing compounds of formula <FORM:1002185/C2/1> in which Y is hydrogen or a radical of formula <FORM:1002185/C2/2> and R, R1, R2 and R3 an H alkyl, alkenyl, haloalkenyl, or haloalkyl radicals of 1-8 carbon atoms and x is a number from 1 to 8 are prepared by condensing a phosphorus-containing acid with an epoxide or haloepoxide. Examples describe the preparation of adducts from anhydrous or syrupy phosphoric acid with 3chloro-1, 2-epoxy propane; 3-chloro-1,2-epoxy propane followed by ethylene oxide, or vice versa; ethylene oxide; and 1,2-propylene oxide.
Patent GB-1014455-A (GB)
Title: Slit sealer
IPC: B29C65/74
Filed: 1963-10-08
Abstract: 1,014,455. Seaming non - metallic sheet material. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Oct. 8, 1963 [Oct. 8, 1962], No. 39683/63. Heading B5K. In a method of longitudinally slitting a flattened tube 10 of thermoplastic material and sealing together the adjacent superposed slit edges thereby obtained, the tube 10 is slit and sealed by a cutter and sealing unit adjacent to the surface of a rotatable drum 30 as the tube 10 is drawn longitudinally under tension around a portion of the periphery of the drum 30, a longitudinally directed tension being maintained uniformly across the width of the tube whilst the tube is slit and until the slit edges are sealed in the stressed area so that the adjacent superposed slit edges remain together. The tube 10 may be divided into two sections 13, 14, Fig. 1, or could be cut and sealed along the dotted lines 15, 16 to form three parallel tubes. A razor 17 and a seal bar 18 heated by electrical resistance heating are positioned in the path of longitudinal motion of the tube 10 so that the tube is first slit then sealed. Alternatively, the tube 10 may be slit and sealed simultaneously. During slitting and sealing the tube 10 passes around a drum 30 having a rubber cover 30a and is urged into contact therewith by rollers 50, 51, Fig. 4, biased towards engagement with the drum. Slitting and sealing units 35, 36, 37, Fig. 5, which may be combinations such as the knife 17 and the bar 18, are rotatable about the axis of a shaft 38 so that each can be selectively moved between an operative and an inoperative position. Hydraulic means may be provided for this purpose. The units 35, 36, 37 co-operate with notches 40, 41, 42 in the cover 30a. To ensure appropriate tension on the tube 10 the drum 30 may be separately driven in a direction of rotation that would be caused by the motion of the film over the drum.
Patent GB-1388825-A (GB)
Title: Substituted amino pyrimidine compounds and pesticidal compo sitions thereof
IPC: C07D239/42
Filed: 1971-03-19
Abstract: 1388825 Aminopyrimidine compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Feb 1972 [19 March 1971 (2)] 39830/74 and 39813/74 Divided out of 7289/71 Heading C2C Novel compounds of formula X-NH-Y wherein X represents a 4- or 5-pyrimidinyl radical bearing at least two substituents (other than -NH-Y) and Y represents a phenyl naphthyl or pyrimidinyl radical bearing at least two substituents (other than -NH-X), at least two of the substituents being halogen and the remaining substituents being selected from halogen, cyano, nitro, perfluoroalkyl and aralkylthio, or alkyl, provided that alkyl is only present when Y is a pyrimidinyl radical, may be prepared by reacting X-NH 2  with Y-Hal (or vice versa) in the presence of a base. The novel compounds exhibit pesticidal properties.
Patent GB-1535409-A (GB)
Title: Master alloy powders
IPC: C22C22/00
Filed: 1976-09-25
Abstract: 1535409 Master alloy powder for making sintered alloy steel FORD MOTOR CO Ltd 25 Sept 1976 39893/76 Heading C7A A master alloy powder for blending with Fe powder in making sintered alloy steel contains in weight per cent; 30-75Mn, 5-30Ni, 0-18Cr, 0-15Mo, 0-40Fe, 0-14Cu, with 5-15Mo when Cu is absent. The powder has a liquidus of 1700- 2300F and a melting range of not more than 350F. The master alloy may also contain 1-5Si and/or 0À2-1À5 rare earths, the total Si and/or rare earth being 5 maximum. The powder is preferably formed by inert gas atomization of a melt and sintered steel is made by mixing 0À25-6% of the master alloy powder with an iron base powder and optionally graphite and alloying elements and liquid phase sintering at 2050-2250F.
Patent GB-1476857-A (GB)
Title: Sliding clasp fasteners
IPC: A44B19/36
Filed: 1975-09-30
Abstract: 1476857 Sliding clasp fasteners YOSHIDA KOGYO KK 30 Sept 1975 [14 Oct 1974] 39929/75 Heading E2S A sliding clasp fastener comprises a pair of stringer tapes 10, 10' carrying along their opposed inner edges respective rows of continuous coupling elements 12, 12' which are mutually engageable and disengageable by a slider 17 moving therealong, each row of coupling elements being formed with a plurality of scoops each having a head 14 projecting inwardly beyond the inner edge 15 of one of the stringer tapes 10, 10', and a top stop device comprises a pair of stop members 19, 20 of synthetic resin each united with one of the rows of coupling elements so as to cover at least the head regions 14 of several top most scoops thereof, each stop member projecting inwardly beyond the inner edge of one of the stringer tapes substantially to the same extent as the heads 14 of the scoops carried thereby. According to the invention one of the stop members 20 is shorter than the other stop member 19 whereby, upon movement of the slider 17 along the rows of coupling elements to a predetermined topmost position thereon, the scoop immediately underlying the lower end of said one stop member 20 abuts against the inner edge of the other stop member 19. As shown, in a sliding clasp fastener of the concealed type the stop members 19, 20, made e.g. of nylon or polyester, and integrally united by thermal fusion with the respective synthetic resin, coil-type coupling elements 12, 12', are each shaped substantially into the shape of a shallow V to enter the guide channel in the slider 17, Fig. 3, the coupling elements 12, 12' being stitched, at 13, respectively to rearward folds 11, 11' of the tapes 10, 10'. The stop member 19 is longer than the stop member 20 by approximately half a pitch distance between the scoops of each coupling element 12, or 12'.
Patent GB-976979-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: LAMMING JACK STEWART
IPC: H01L29/00
Filed: 1962-10-22
Abstract: 976,979. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Oct. 22, 1963 [Oct. 22, 1962], No. 39974/62. Heading H1K. A field effect device has a channel constituted by part of a layer of P(N) type formed by deposition from the vapour phase on a substrate of N(P) type, the gate region of P(N) type being constituted by the substrate and a second region overlying part of the P(N) layer. A plurality of such devices may be made from a 0.001 ohm cm. P-type silicon wafer as follows. N-type silicon is deposited on one face from a gaseous mixture of hydrogen and chlorides of phosphorus and silicon. The face is then masked, and etched or diffused with boron to leave islands 3 of N-type material. Boron is next diffused into strips 4 about 100 Á wide exposed through oxide masking to form P-type channels connected at the ends to the base wafer material. After removal of the oxide gold-antimony source and drain electrodes 11, 12 are evaporated on and alloyed to the N-type layers and the wafer cut into individual devices. Each is attached to a copper header forming the gate electrode and encapsulated with gold lead wires thermocompression bonded to the source and drain electrodes. Alternatively the gate electrode is dispensed with and the source electrode extended to contact the P-type gate to form a constant current diode.
Patent GB-1082614-A (GB)
Title: Treated cellulosic material and electrical apparatus embodying same
IPC: H01B3/18
Filed: 1964-09-02
Abstract: Sheet cellulosic material, e.g. paper, has uniformly distributed through it 1-3-dimorpholino-2-propanol, to reduce loss of strength with time at high temperatures.  The stabilizing compound may be applied to paper at a size press between first and second drier sections of a paper making machine.  Synthetic resins, e.g. phenolic, epoxy, acrylic or dialyl phthalate resins may also be incorporated in the coating of the pulp or later from organic solution.  The present stabilizing compound may be used alone or in combination with those of Specifications 938,479 and 1,083,557 or U.S. Specification 3,102,159.  The treated sheet material may be used to insulate electrical equipment, e.g. cables or transformers, as in Specification 938,479.
Patent GB-1186747-A (GB)
Title: Structures formed from Vinyl Chloride Polymer Compositions
Inventor: THOROGOOD KENNETH PHILIP
IPC: C08L27/06
Filed: 1967-09-04
Abstract: 1,186,747. Coated sheet material. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 Aug., 1968 [4 Sept., 1967], No. 40240/67. Headings, B2E and B2K. [Also in Division B5] A structure comprising a plurality of superimposed vinyl chloride polymer layers, at least one external layer containing 10-100% wt of plasticiser (based on the weight of vinyl chloride polymer in the composition) and at least one other layer containing 5-40% wt of a polymeric impact modifier to increase impact strength of composition and less than 5% wt, preferably zero, of a plasticiser (calculated on the same basis) is made by spraying or coating the interior layers with a solution containing the plasticised polymer and then evaporating the solvent. The vinyl chloride polymer may be a homopolymer of vinyl chloride or a chlorinated vinyl chloride or a copolymer which contains less than 20% wt of comonomer. Suitable plasticisers include alkyl phthalates and sebacates, phosphate esters, tributyl phosphates and secondary plasticisers such as chlorinated waxes and polypropylene adipate, sebacate and laurate. The polymeric impact modifier may be copolymers of butadiene with styrene and/or methyl methacrylate and/or acrylonitrile or graft polymers of styrene and/ or methyl methacrylate onto polybutadiene or the above copolymers, chlorinated polyolefins, copolymers of ethylene with vinyl esters, alkyl acrylates or methacrylates, polyacrylates and graft copolymers of methyl methacrylate onto an alkyl acrylate trunk. The structure preferably comprises three or more layers in which each external surface is made of the plasticised vinyl chloride polymer composition and is suitably constructed so that the total thickness of the plasticised layer(s) forming the external surface is 0.001-0.020 inches and the sandwiched rigid core layers) have a total thickness of 0.05-0.5 inches. At least, the external layers) of plasticised composition may contain 0.1-4% wt of a U.V. absorber, a large range of these being specified, and all layers may contain additives such as heat stabilisers, anti oxidants, lubricants, dyes, pigments, processing aids, fillers and extenders. The structures are in the form of flat sheets which can be shaped by vacuum forming. The structures may be laminated to glass and/or polymethyl methacrylate. '
Patent GB-958511-A (GB)
Title: Improvements in and relating to egg cartons
IPC: B65D85/32
Filed: 1960-11-23
Abstract: 958,511. Egg cartons. PACKAGING CORPORATION OF AMERICA. Nov. 23, 1960 [March 28, 1960], No. 40245/60. Addition to 946,467. Heading B8P. A separator for layers of egg cartons packed in a shipping case, and as described in the parent Specification is provided with upstanding projections 50-53 which coact with guiding means in the drying section of a pulp product moulding machine to prevent the separator shifting on the conveyer belt as it passes through the drying machine. The projections also assist in locating the cartons on the separators. U.S.A. Specifications 2,134,860 and 2,766,924 also are referred to.
Patent GB-1214589-A (GB)
Title: A refrigerating installation provided with lubricating apparatus
IPC: F25B31/00
Filed: 1969-08-12
Abstract: 1,214,589. Refrigerating. TERMOMECCANICA ITALIANA S.p.A. 12 Aug., 1969 [13 Aug., 1968], No. 40252/69. Heading F4H. In a refrigerating installation including a compressor 1, condenser 5, reducing valve 7 and evaporator 3, lubricating oil to be cooled from compressor casing 11 is withdrawn by pump 19 and passed through a heat exchanger 17 and a cold oil reservoir 26 on its way back to bearings 9, 10 of drive shaft 8. Liquid refrigerant from evaporator 3 and line 23 is used to cool the oil in heat exchanger 17; the refrigerant vapour produced passing into the top of casing 11 from where it is vented through line 15 into Venturi tube section 16 of the suction line 2 of the compressor. About 5% by weight of the oil is carried over with the refrigerant through line 15 and this produces a foam in evaporator 3 which helps to keep tubes 13 immersed in the refrigerant. Some oil is recycled with the refrigerant through line 23 and exchanger 17 to the casing 11. Due to the provision of Venturi-tube section 16, the pressure P1 in the casing 11 is less than the pressure P 0  in the evaporator, this pressure difference causing the refrigerant flow through line 23 and heat exchanger 17 and aiding the cold oil flow from reservoir 26 to bearings 9, 10. In a modification the cold oil reservoir may be dispensed with.
Patent GB-1398168-A (GB)
Title: Soil testing apparatus
IPC: G01N33/24
Filed: 1972-08-31
Abstract: 1398168 Testing soil R J M CORDOVA 31 Aug 1972 40332/72 Heading G1S A soil sample 4 to be tested is enclosed in a plastics cylinder 1 positioned between a base 2 and lid 3 and is compressed between a metal plate 5 and the base by pulling down on three peripheral wires 7. A reaction is supplied by a central wire 6 which indicates the soil deformation on a gauge 9. (For Figures see next page)
Patent GB-1167534-A (GB)
Title: Automatic Gain Control in Television Receivers
Inventor: HOBBS DONALD SYDNEY
IPC: H04N5/52
Filed: 1966-09-09
Abstract: 1,167,534. Television automatic gain control. MULLARD Ltd. 15 Nov., 1967 [9 Sept., 1966], No. 40346/66. Heading H3T. An A.G.C. system in a television receiver superimposes a pulse of constant amplitude on to the black level during the back porch period of the video waveform, this pulse being produced by a ringing pulse generator which is rendered operative by the line synchronizing signal from said waveform. The combined level of the pulse and the back porch exceeds the maximum excursion of the video waveform, and from the peak is derived a signal proportional to the amplitude of the black level for application to gain control stages of the receiver. As applied to a receiver for both positive and negatively modulated signals, video detector D 1  feeds via filter network L 1 , C 1 , C 2  a direct-coupled video amplifier TR 1  having collector and emitter loads, R 2 , VR 1 , respectively; an output is taken from the emitter in the case of positive modulation and from the collector with negative modulation, by means of switch 15. Amplifier TR 1  also supplies an output to sync. separator TR 2 ; a portion of the output from this is applied by means of a potentiometer comprising resistor R 5  and variable damping resistor VR 2  to a ringing pulse generator comprising transformer L 2 , the secondary of which is tuned by capacitor C 3 . This is connected with potentiometer VR 1  so as to superimpose ringing pulses on the video waveform. Fig. 1d. Transistor TR3 comprises a peak amplifier, being biased beyond cut-off by means of a potentiometer comprising resistors R7, R9, and it passes to the A.G.C. amplifier only the peaks of the signal applied to its base, which in the case of positive modulation comprises the combined waveform, Fig. 1d, and in the case of negative modulation, i.e. with switch 18 reversed, the video waveform with the sync. pulses as its most positive component. The series capacitor network R 8 , C 4  allows transistor TR 3  to operate at high peak current without allowing it to bottom.
Patent GB-1243343-A (GB)
Title: Tape applying apparatus
Inventor: MORSE JOHN EDWIN
IPC: B65H35/00
Filed: 1968-08-23
Abstract: 1,243,343. Tape applicator. EASTMAN KODAK CO. 23 Aug., 1968 [23 Aug., 1967], No. 40349/68. Heading B8F. [Also in Division G2] A device for applying tape to an article comprises a support for the article; a tape-roll carriage movable towards the support to position a first length of tape; a tape-applicator carriage movable towards the support to apply the first length of tape to the article and to remain in position while the tape-roll carriage is reversed so that a second length of film is stripped from the roll for later application to a further article. As shown, the device is applied to a film-splicer as described in Specification 1,243,342, in Division G2, wherein film strips 12, 13, mounted on tables 10, 11 are to be joined by tape 86. Tape-roll carriage R and applicator carriage K have rollers, e.g. 53, 57, 71, 72 for movement relative to each other and to a support S; rollers 72 (and 68, Fig. 6, not shown) of carriage R being connected by a shaft 70 which is driven by a rotor (22, Fig. 3, not shown) through linkage 42, 43, 44. As carriage R is driven towards the film strips, carriage K is also pulled along, due to an interconnecting spring (133, Fig. 6) until a spring 135 attached to carriage K abuts a flange 137 on support S. Carriage R continues alone, threading the tape 86 through a cutter C on carriage K and positioning the tape over the film ends. A stop 104 on carriage R then strikes a latch 101 on carriage K releasing the latch from a plate 108 attached to a lever 98, 99 allowing the latter to pivot, under the action of a spring 100, so that a roller 96 presses the tape 86 against the film strips. Stops 138, 140 on the carriage then abut to drive carriage K forward, compressing spring 135 and pushing roller 96 across the end of tape 86. The linkage 42, 43, 44 reverses the carriages which move together until the spring 135 is no longer compressed. Carriage R then moves alone, stripping tape from a roll 83 and pulling it through a creasing device D.. A shaft 124 on carriage R strikes a shoulder 123 of a link 118 which pivots a latch 114, releasing a lip 116 thereof from a pin 131 of a cutter blade (111, Fig. 2, not shown) which, under the action of a spring 113, severs the tape. Continued movement of the shaft 124 into a slot 122 allows recocking of the latch 114 by a spring 142. The carriages are driven together again on the abutment of stops 143, 145, and screws 150, 151 on support S pivot levers 99, 129 on carriage K to raise roller 96 and blade (111); the motor (22) being automatically shut off.