baber/WOPTO huggingface dataset:
Patent GB-1328853-A (GB)
Title: Process for preparation of epoxy resin adhesive composition
IPC: C08G59/62
Filed: 1970-10-30
Abstract: 1328853 Modified epoxy resins DOW CHEMICAL CO 30 Oct 1970 [31 Oct 1969] 51733/70 Heading C3B An epoxy resin which is a polyglycidyl ether of a polyhydric phenol, a glycol, glycerol or a polyoxyalkylene glycol is first reacted with a polyurethane prepolymer to yield a "methane modified" epoxy resin which is then reacted with a bisphenol coupling agent of formula in which A is a C 1-4  alkylene group, S, S 2 , SO, SO 2 , CO, O.CO.O or O and X is H, Cl or Br, in the presence of a catalyst. The first stage of reaction with the polyurethane prepolymer may take place at 80-90‹ C. for a time sufficient to ensure the complete reaction of the -NCO groups. The bisphenol may then be added and reaction continued until the desired epoxide content is reached. The initial resin may be a diglycidyl ether of bisphenol A and the coupling agent may be bisphenol A. The product may be cured by conventional epoxy resin curing agents. Fillers and conventional extenders may be used. Uses.-Adhesives, especially for metals.
Patent GB-1475920-A (GB)
Title: Projector
IPC: G03B21/12
Filed: 1974-12-02
Abstract: 1475920 Slide/cine projector LINDACO Ltd 2 Dec 1974 51995/74 Heading G2J A projector is alternatively useable for cine and slide projection. Fig. 3 shows the projection ready for slide projection. It comprises a projection lens system 1, a slide holder 3, a condenser 6 and an optical fibre 8 extending from a light source (not shown) to a position adjacent condenser 6. The fibre 8, condenser 6 and a film feed device 5 are connected by linkage 14, 10a, 10b which is operable to convert the projector to cine by retracting condenser 6 from the light path, moving film feed device 5 into the light path, preferably together with a magnifying lens 7, and moving fibre 8 rightwards through slide holder 3 so that it terminates adjacent film feed device 5. A drive unit 4 changes the slides and drives the film.
Patent GB-1300595-A (GB)
Title: Improvements in or relating to flame resistant casting resins
IPC: C08K3/00
Filed: 1970-11-05
Abstract: 1300595 Flame resistant resin compositions SIEMENS AG 5 Nov 1970 [5 Nov 1969] 52769/70 Headings C3B C3R and C3T A flame resistant resin composition comprises per 100 parts by wt. of a curable synthetic resin matrix, 80-160 parts by wt. of a mixture of hydrated alumina and a finely divided fossil component; the fossil component, which is defined as a non-carboniferous petrifaction of plant or animal origin which exists naturally as a loose agglomerate of particles of large surface area, comprises 6-12% by wt. of the filler mixture. The resin matrix may be a polyester, polyurethane, phenolic silicone or epoxy resin. The fossil component may be formed from polyzoan colonies and may have a particle size of up to 20 Á.
Patent GB-1267828-A (GB)
Title: Contact formation process
Inventor: COX THEODORE ROGER
IPC: H01L21/00
Filed: 1969-10-28
Abstract: 1,267,828. Semi-conductor devices. GENERAL ELECTRIC CO. 28 Oct., 1969 [31 Oct., 1968], No. 52833/69. Heading H1K. A method of producing metallic contacts in apertures 10 in an insulating surface layer 3 on a semi-conductor body wherein this surface layer 3 is clad with a heat removable mask 2 comprises depositing by vacuum deposition at least one metallic layer 20 all over the surface while maintaining the semi-conductor body 1 and the mask thereon at a temperature below that at which the mask begins to clear, that is in the range 150-210 C., then heating the mask to a temperature in the range 400-570 C., when it chars to loosen and remove it together with the metallic layer or layers thereon, and continuing this heating to sinter the metallic layer or layers to the semi-conductor body to form ohmic contacts therewith. The heat removable mask is an organic photoresist and the metallic layers comprise a lower layer 7 of an active metal such as titanium, vanadium, chromium, niobium, zirconium, palladium, tantalum or compounds thereof covered by an upper layer 8 of metal with good bonding properties such as aluminium, silver, gold, platinum or compounds thereof. As a final step to remove remaining portions of the heat removable mask the body is placed in an ultrasonically agitated bath.
Patent GB-1512763-A (GB)
Title: 3-nitropyrazole-4-acrylic acid derivatives
IPC: C07D231/16
Filed: 1976-12-20
Abstract: 1512763 3 - Nitro - pyrazole - 4 - acrylic acid derivatives BOEHRINGER MANNHEIM GmbH 20 Dec 1976 [23 Dec 1975] 53028/76 Heading C2C Novel compounds I and salts thereof [in which R 1  is C 1-6  alkyl, R 2  is H or C 1-6  alkyl, R 3  is CN, COOH, (C 1-5  alkoxy)carbonyl or CONR 4 R 5  (where R 4  is H, OH, carbamoyl optionally mono- or di-alkylated, CS-NH 2 , NH-CO-NH 2 , NH-CS-NH 2 , hydroxyphenyl, alkyl-pyridyl pyridylmethyl, C 1-6  alkyl, alkenyl or cycloalkyl in which the latter three are optionally substituted by CN, OH pyrrolidine, piperidino, amino optionally mono- or di-C 1-6  alkylated or C 1-6  acylamino) and R 5  is H or C 1-6  alkyl or R 4  and R 5  together represent a C 2-6  alkylene bridge] are prepared by reacting a compound II with a compound XCH 2 R 3  in which X is H or R 3  or with a reaction derivative of a compound III when X is H, and if X is R 3  subsequently decarboxylating the product obtained, or (2) reacting a compound IV to convert NH 2  to NO 2 ; and if desired converting an R 3  substituent into a further R 5  substitutent by known methods. Compounds II are prepared from methyl 1 - (R<SP>1</SP>) - 3 - nitro - pyrazole - 4 - carboxylate or 3(5) - amino - 4 - methyl - pyrazole by known methods. Compounds I have anti-microbial activity and may be used in the form of pharmaceutical compositions administered orally or parenterally.
Patent GB-1515230-A (GB)
Title: Mixing silo or hopper for fine-grained or pulverulent material
IPC: B01F5/24
Filed: 1976-12-22
Abstract: 1515230 Mixing by gas currents CLAUDIUS PETERS AG 22 Dec 1976 [15 Jan 1976] 53657/76 Heading B1C Apparatus for homogenising pulverulent material by compressed gas comprises a silo 1 having a riser tube 3 the upper edge of which has slots 5 through which the material overflows, each slot being associated with a pivoted flap 7 giving access to at least one channel 6 outside the tube 3. The flaps may be actuated periodically as by a timing device to switch the material from a single channel to free fall or from one to the other of a pair of channels. The channels 6 may be pneumatic conveyer troughs. The apparatus is normally operated on a batch basis and the material recycled several times.
Patent GB-1309277-A (GB)
Title: Colour photographic element and emulsion
IPC: G03C1/815
Filed: 1970-11-11
Abstract: 1309277 2,4,6-Trialkylphenols KONISHIROKU PHOTO INDUSTRY CO Ltd 11 Nov 1970 [13 Nov 1969] 53724/70 Heading C2C [Also in Division G2] 2,4,6 - Tri - (1 - methylpentyl) - phenol is pre-  pared by heating phenol and boron trifluoride, adding 1-hexene and heating. 2,4,6-Tri-(1- methylnonyl)-phenol and 2,4,6-tri-(1-methylheptyl)-phenol are prepared similarly.
Patent GB-1444117-A (GB)
Title: Pump system
IPC: A61M60/258
Filed: 1973-11-20
Abstract: 1444117 Reciprocating pumps MEDAC GES FUR KLINISHE SPEZIALPRAPARATE mbH 20 Nov 1973 53786/73 Heading F1A [Also in Division G3]  A reciprocating pump 1, for use in a system for pumping a human body fluid, is driven by a motor 4 responsive to control signals derived from a programmable memory, see Division G2-G3. The control signals determine the operation of a servovalve 2 which actuates a servo-cylinder 3 controlling the rate of supply of pressurized hydraulic fluid via a duct 16 or a duct 17 to either side of a piston 4'. Positional feedback is derived from a transducer 18. The motor piston 4' is coupled through a rod 21' to disc-shaped membranes 14, 15 forming the piston of the pump 1. In modified embodiments, the pump is driven by an electrical stepping motor or an electrical linear motor.
Patent GB-1455837-A (GB)
Title: Camera shutter control circuit
IPC: G03B7/083
Filed: 1973-11-21
Abstract: 1455837 Shutter control circuits NIPPON KOGAKU KK 21 Nov 1973 [30 Nov 1972] 54091/73 Heading G2A [Also in Division H3]  A shutter control circuit comprises a timing circuit 1, 2 for producing an output signal to denergize an electromagnet 3 to release a shutter closing blind, a capacitor 4 in parallel with the electromagnet 3 for preventing high frequency noise produced by a flash or strobe lamp from interfering with the operation of the electromagnet 3 and a low-pass filter 6 connected between the junction of electromagnet 3 and capacitor 4 and the input a of the timing circuit 1, 2 to provide positive feedback when de-energization of the electromagnet 3 starts, in order to increase the output signal of circuit 1, 2 and ensure immediate de-energization of electromagnet 3. As shown, circuit 1, 2 comprises a differential amplifier which receives one input from a photo-cell and the other from a capacitor which starts charging upon shutter opening. When the voltage at b has fallen to the value of the voltage at a an output is produced by the differential amplifier which starts to turn off a transistor in series with electromagnet 3. If the internal resistarice R of the battery 5 is high the supply voltage may then rise increasing the voltage at b, turning the electromagnet 3 on again and causing oscillation. The feedback circuit prevents such oscillation. The fact that it is a low pass filter prevents development of the feedback voltage in response to high frequency noise.
Patent GB-1279594-A (GB)
Title: Gas flow control valve
Inventor: ADAM IAN ROSS
IPC: F16K31/16
Filed: 1970-11-13
Abstract: 1279594 Valves MACLAREN CONTROLS Ltd 13 Nov 1970 54151/70 Heading F2V A gas burner control valve has a safety lock arrangement including an "on" push-button 8, a spindle 10 mechanically coupled to the pushbutton 8, a valve member 23 attached to a plunger 24 of a solenoid 25 which can hold the valve open, a spigot 22 at the centre of the valve member upon which the end of the spindle bears when the push rod is pressed, and a spring-urged gate 1 mounted on a hinge pin 3 which, by a shoulder 6 prevents inward movement of the push-button when the valve is open and which, by a ramp 5 co-operating with the spigot 22 pushes the gate out of the path of the spindle when the valve is closed. An "off" push-button 9 interrupts the pilot light circuit when actuated to release the valve member from the solenoid. In a modification (Fig. 3, not shown) the gate is mounted on a spider formed or inserted in a bore surrounding the lower end of the spindle 10. Another modified form includes a rotatable cock (42) (Fig. 4, not shown) with a spider (43) on which is mounted the gate. (For Figures see next page)
Patent GB-1410530-A (GB)
Title: Modulating and demodulating circuits
IPC: H03K9/06
Filed: 1972-11-27
Abstract: 1410530 Pulse modulation circuits; frequency demodulators PROCESS PERIPHERALS Ltd 27 Nov 1973 [27 Nov 1972] 54747/72 Headings H4L and H3A Pulse period modulation and demodulation circuits are disclosed which are suitable for the recording and playback of television waveforms. Modulator.-Input signal Vin, Fig. 1, is arranged to be positive at terminal A with respect to grounded terminal B and terminal A is connected to the non-inverting inputs of differential amplifiers A1, A2. Capacitors C1, C2 are connected to line B and provided with constant current charging circuits T1, R1 and T2, R2 respectively, which are controlled by inverting gates G3, G4 in accordance with the periodmodulated output signal derived from a bistable G1, G2 receiving the outputs of amplifiers A1, A2. When an inhibiting signal is applied to G2 its output is positive and the output of G1 is at ground potential so that G3 is in the "off" state and capacitor C1 commences to charge. When the potential on C1 exceeds the input potential Vin, the output of A1 reverses and if the inhibiting potential is now removed, the output of A1 will set G1 to "off" and G2 to "on" to reverse the state of gates G3, G4 so that C1 begins to discharge and C2 to charge. When the potential on C2 just exceeds Vin the negative output of A2 will cause the action to reverse again so that half periods of oscillation which are linearly proportional to the input voltage are derived. Demodulator.-The period-modulated input is supplied in opposite polarities via inverting gates G11; G12, to capacitors C11, C12 provided with constant current charging circuits R11, T11, and R12, T12 respectively. The capacitors are connected via switching circuits S11, S12, controlled to operate in synchronism with polarity changes of the input signal, to a common amplifier A1 and a low pass filter removes the carrier component. When the input is of one polarity, C1 is charged linearly by its constant current device and the amplitude it reaches at the instant the input signal changes state is proportional to the duration of the charge. When the input states reverse, capacitor C2 charges in a similar manner, each capacitor being discharged in the other half-cycle by gates G11, G12. The potentials on each capacitor are switched in turn, during their charging periods, to the amplifier A11.
Patent GB-1406306-A (GB)
Title: Valve manifold
IPC: F04D13/14
Filed: 1972-11-28
Abstract: 1406306 Pumps VARLEY-FMC Ltd 27 Feb 1974 [28 Nov 1972] 54810/72 Heading F1A Two pumps 4, 5 are connected to a common manifold casing 1, the pump inlets 23, 25 being connected to a common inlet connection chamber 29 via check-valves 27, 28 and the pump outlets  24, 26 being connected to a common outlet connection chamber 32 via check-valves 46, 47, so that if one pump is removed for servicing, its inlet and outlet connections are isolated by the check-valves to permit continued operation of the other pump. Ball-valves 27, 28 are lightly biased by springs 33, 34 seated in access plugs 37, 38. Valves 46, 47 are spring-loaded and mounted in removable casings 44, 45. The pump inlets and outlets are connected to the manifold by hollow banjo bolts (52), Fig. 6 (not shown).
Patent GB-1448026-A (GB)
Title: 2-aminomethyleneindanone analgesic agents
IPC: A61K31/135
Filed: 1973-11-26
Abstract: 1448026 Aminomethylene indanones PFIZER Inc 26 Nov 1973 [6 Dec 1972] 54830/73 Heading C2C Novel compounds of Formula I and the pharmaceutically acceptable acid addition salts thereof, wherein R is hydrogen, C 1 -C 4  alkyl or phenyl; Z is -N(R 3 )R 4 , NH(CH 2 )nN(R 5 )(R 6  or NH(CH 2 ) n OR 3 , wherein R 3  and R 4  are each hydrogen or C 1 -C 4  alkyl, R 5  and R 6  are each hydrogen or C 1 -C 4  alkyl and n is integer of from 1 to 5; R 1  and R 2  are hydrogen or C 1 -C 4  alkyl; R 7  and R 8  are each hydrogen, fluoro or chloro; and R 9  is hydrogen or fluoro are prepared either by reaction of a 2-hydroxymethylene-1-indanone with an appropriate nitrogen compound or reaction of a 1-indanone with RC(O(C 1-2 )alkyl) 2  N(CH 3 ) 2  and optional further reaction of the 2 - dimethylaminomethylene - 1 - indanone with an appropriate nitrogen compound. 2 - Hydroxymethylene - 1 - indanones are prepared by reaction of ethyl formate and sodium methoxide with a suitable indanone. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having analgesic activity comprise an above novel compound and a carrier or diluent.
Patent GB-1281458-A (GB)
Title: Process for producing photographic emulsions
IPC: G03C1/09
Filed: 1970-11-20
Abstract: 1281458 Making photographic silver halide emulsions E I DU PONT DE NEMOURS & CO 20 Nov 1970 [21 Nov 1969] 55292/70 Heading G2C In making a photographic silver halide emulsion sensitized with a sulphur sensitizer and containing a poly (alkylene oxide) compound, the sulphur sensitizer is added either during or immediately after the precipitation of the silver halide. The sulphur sensitizer may be run into the halide solution with the silver nitrate solution or may be present in the halide solution during the precipitation step, the emulsion then being subjected to physical ripening, removal of salts and afterripening. The poly (alkylene oxide) may be added during chemical ripening or just before coating.
Patent GB-1339159-A (GB)
Title: Apparatus for compacting filter tip assemblies
IPC: A24D3/02
Filed: 1971-12-01
Abstract: 1339159 Tobacco-smoke filter manufacture LIGGETT & MYERS Inc 1 Dec 1971 [28 Dec 1970] 55776/71 Heading A2C An apparatus for compacting filter tip assemblies 14 which include granular sections 16 and entrainment type wad sections 17, comprises a drum 12 on which the assemblies are transported in grooves 19 and which has mounted coaxial therewith a pair of plates 20 each carrying a plurality of pressure pads 22 aligned with the grooves 19; each plate 20 being disposed in angular relation to their common axis so that each pad 22 on one plate 20 is brought toward its aligned pad 22 on the other plate 20 at a predetermined position to exert a compacting force on an assembly disposed in alignment therebetween. The plates 20 are mounted on spherical bearings 27 and are driven at the same angular speed as the drum 12 by dog pins 30 fixed to annular flanges 24 that are mounted on the drive shaft 21 of the drum 12, the dog pins 30 passing through apertures 31 in the plates 20. Opposing aligned pressure pads 22 are rocked towards each other in the compacting position by means of a pair of cam rollers 36 acting on the plates 20. In another embodiment, Fig. 4 (not shown), the plates 20 are driven by a pin (43) in one half 28 of each bearing 27 engaging within a laterally elongated slot (44), in the other half 29 of the bearing. In a further embodiment, Fig. 6 (not shown), the bearing 27 is replaced by spring mounting the plates 20 to the flange, 24.
Patent GB-1383940-A (GB)
Title: Polymeric thermodetective material
IPC: C08L61/06
Filed: 1972-12-11
Abstract: 1383940 Nylon-novolac composition MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 11 Dec 1972 [14 Dec 1971 31 March 1972] 57130/72 Heading C3R [Also in Divisions G1 and H5] A polymeric material comprises (A) nylon 11  and/or 12 and (B) an acid-catalysed condensation product of a compound (C) having # 1 phenolic OH and (D) an aldehyde having polymerization degree #20, there being by wt. 5-30 parts (B) per 100 parts (A). Phenolic compound (C) may be a mono- or di-alkyl phenol, an alkyl hydroxybenzoate, or a dihydroxydiphenol The alkyl group may contain 1-30 C atoms. Aldehyde (D) may be formaldehyde, paraformaldehyde, or benzaldehyde. (A) and (B) are mixed dry, extruded, and pelletized, and the material is then extruded into a thermodetective material, for use, e.g. in a heat-sensitive heater for controlling the temperature of an electric blanket, sheet or carpet.
Patent GB-1408012-A (GB)
Title: Suspension railway with an electro-magnetic suspension and guiding system for vehicles
IPC: H02K41/03
Filed: 1972-12-12
Abstract: 1408012 Railway systems MESSERSCHMITT - BOLKOW - BLOHM GmbH 12 Dec 1972 [15 Jan 1972] 57242/72 Heading B7L A railway system comprises vehicles 1 supported on a central beam 2 and suspended and guided by electromagnets 15, 18 respectively which co-operate with conductive rails 14, 17, the beam 2 at a switch having no moving parts tapering along one edge 8 and entering the space between a main track beam 4 and a branch track beam 3 which latter beams 3 and 4 have oblique end faces 7, 9. Supports 20, 21 alongside the switch have sets of electromagnets 22, 24 therealong which are adapted to co-operate with fixed rails 23, 25 on the vehicles, there being additional sets of electromagnets 26 along the end faces 7 and 9. A vehicle travelling from the left and continuing on the main track will be supported by magnets 22 and rail 23, as contact is lost between magnets 15 and rail 14, due to an increase in excitation of magnets 22 on support 21. A vehicle will be switched to the branch track by an increase in excitation of magnets 22 on support 20. The vehicles may be driven by a linear motor or power supplied thereto through live rails.
Patent GB-1242240-A (GB)
Title: Production of aromatic polyesters of improved colour
Inventor: HEWERTSON WARREN
IPC: C08G63/87
Filed: 1968-12-03
Abstract: 1,242,240. Catalysts for preparing polyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 Nov., 1969 [3 Dec., 1968], No. 57269/68. Heading C3R. [Also in Division C2] A fibre-forming, high molecular weight polyester is prepared in a batch or continuous process by polycondensing a polycondensable material of which 85 mole per cent or more consists of at least one bis ethylene glycol ester of an aromatic dicarboxylic ester in the presence of, as catalyst, (a) a trihalide or tri-pseudohalide (e.g. cyanide or isothiocyanate), and (b) an organic oxo compound of P, As, S b  or Bi of the formula where R is a monovalent hydrocarbyl or hydrocarbyloxy group, R 1  is a direct link or divalent hydrocarbon group and n is zero or one. In the examples dimethyl terephthalate is subjected to ester interchange with ethylene glycol using manganous acetate as catalyst and the product is polycondensed in the presence of SbF 3  and (a) tetraisopropyl methylene di. phosphonate; (b) tetraphenyl methylene diarsine dioxide; and (c) tetraphenyl methylene diphosphine dioxide.
Patent GB-1338966-A (GB)
Title: Detergent builder compositions
IPC: C11D3/00
Filed: 1971-12-14
Abstract: 1338966 Builder compositions PROCTER & GAMBLE CO 14 Dec 1971 [14 Dec 1970] 58006/71 Heading C5D A detergent builder composition comprises (i) a water-soluble salt of benzene hexacarboxylic acid, (ii) a water-soluble salt of benzene pentacarboxylic acid and (iii) a water-soluble salt of citric acid or oxydisuccinic acid, the weight ratio (i) : (ii) being between 10 : 1 and 1 : 2. The builder composition may also include a water-soluble salt of a benzene tri- or tetra-carboxylic acid. All water-soluble salts are preferably sodium salts. The builder composition may be mixed with a detergent selected from: (a) sodium tallow alkyl oxyethylene sulphate, (b) sodium alkyl benzene sulphonate, (c) a sodium olefin sulphonate, e.g. sodium hexadec-1-ene sulphonate, (d) an ester sulphonate of formula (A) wherein R 1  is C 9-23  alkyl and R 2  is C 1-8  alkyl, e.g. sodium 2-acetoxy-tridecane-1-sulphonate, (e) an ether sulphonate of formula (B) wherein R 1  is C 8-20  alkyl and R 2  is C 1-3  alkyl, e.g. sodium 2-methoxy-octadecane sulphonate or a sodium soap, e.g. sodium tallow soap. Other ingredients specified include: sodium silicate, sodium sulphate, dodecyl methyl sulphoxide, dodecanol-ethylene oxide adduct, disodium hexadecane-1,8-disulphonate, octadecyl methyl suphoxide and 2-(S-methyl-S- tert.-hexadecyl sulphonio) ethane-1-sulphonate.
Patent GB-1318330-A (GB)
Title: Glass stopcock
IPC: F16K1/38
Filed: 1971-12-14
Abstract: 1318330 Valves TRW Inc 14 Dec 1971 [14 Dec 1970] 58033/71 Heading F2V A valve for controlling flow between an inlet 38 and two outlets 39, 40 comprises a glass barrel 37 and two glass plugs 43 and 61 respectively provided with 0-ring seals 57, 58, 59 and 67, 69. By rotating the integral handle 44, the plug 43 is lifted to permit flow to outlet 40, and, by rotating handle 62, plug 61 is lifted and permits flow to outlet 39 through bores 48 and 49. If desired, only one plug at a time can be actuated. P.T.F.E., nylon, or polypropylene elements 46, 47 attached to the plugs facilitate rotation. The O-rings are made of Buna N or a copolymer of vinylidene fluoride and hexafluoropropylene.