baber/WOPTO huggingface dataset:
Patent GB-1119584-A (GB)
Title: Curable compositions
IPC: C08L23/16
Filed: 1966-11-09
Abstract: A curable composition consists essentially of (a) 100 parts by weight of an intimate mixture of (1) from 75-95 weight per cent of a liquid hydrocarbon polymer having an average of at least 5 vinyl groups per molecule and an average molecular weight of 1500-100,000, and (2) from 25-5 weight per cent of at least one organopoly-siloxane compound which is soluble in (1), and which has an average of at least 2 hydrogen atoms bonded to silicon per molecule, the silicon valencies not satisfied by hydrogen being satisfied by -O-Si linkages and by monovalent hydrocarbon radicals free from aliphatic unsaturation, there being from 2 to 30 times as many vinyl groups in (1) as there are silicon-hydrogen bonds in (2), (b) from 1-4 parts of an organic peroxide curing catalyst, (c) a catalytic amount of platinum, (d) 0-25 parts of an essentially saturated hydrocarbon plasticizer for (a), and (e) 0-200 parts of filler.  The preferred polymer (a) is polyisoprene, or a styrene-butadiene copolymer. Component (d) may be liquid polybutene and the filler may be silica. The compositions may also contain inhibitors of room temperature cross-linking such as 3-butynol.
Patent GB-1326474-A (GB)
Title: Method and arrangement for increasing the resolution in a colour television image in the vertical direction
IPC: H04N9/78
Filed: 1971-10-29
Abstract: 1326474 Colour television FERNSEH GmbH 29 Oct 1971 [31 Oct 1970] 50490/71 Heading H4F In a television receiver in which a received NTSC-type video signal with ¢ line offset, or a received PAL-type video signal with  line offset, is separated into its chrominance Cr and luminance Y signals by adding and subtracting the received signal delayed by one or two line periods i.e. by means of a comb filter, Figs. 1 and 3 respectively, to compensate for any resolution loss in the vertical direction a low frequency luminance signal appearing in the chrominance signal at the occurrence of a vertical frequency signal step is passed by a lowpass filter 5 and added as a correction signal K to the luminance signal. Three further embodiments for a PAL-type signal are described with reference to Figs. 5-7 (not shown) in which two separate one-line period delay lines are used, the amplitude of the correction signal K is adjustable i.e. vertical aperture correction, and the vertical signal step in the corrected luminance signal is displaced by one line period.
Patent GB-1104296-A (GB)
Title: Improved percussion striker mechanism for igniters
Inventor: SCHERMULY WILLIAM CONRAD STEPH
IPC: F42C7/12
Filed: 1963-12-24
Abstract: 1,104,296. Pyrotechnic firing devices. SCHERMULY Ltd. 23 Dec., 1964 [24 Dec., 1963], No. 50826/63. Heading F3A. A striker mechanism 5 is provided with a support 6 for the striker which retains the mechanism in an unarmed state until required for use. The support 6 is integral with a tube 7 surrounding the striker and its spring 14 and also housing an igniter 4 from which a fuze cord 3 leads to a pyrotechnic composition 2. A cap rotatably mounted on casing 1 carries the striker latch 20, 23 and diametrically opposed screws extend from the casing 1 through part helical slots 24 in the skirt 16 of the cap. During storage, the spring 14 is unstressed as shown in Fig. 3. To arm the striker the cap is rotated on the casing 1 until screws 25 reach the upper end of the slots 24. The spring 14 is then in a stressed condition and, on removal of the latch, drives the striker against the igniter 4. A waterproof, e.g. rubber, cap 26 may cover the cap 16, 17 during storage. Screws 25 may be replaced by screws or pegs extending from the skirt 16 into grooves in the casing 1 or the rotatable connection may be made by interengaging screw threads. Separation of the end plate 17 from the plug may alternatively be produced by sliding instead of by rotation.
Patent GB-1273252-A (GB)
Title: Alkylation of aromatic compounds
Inventor: STOUTHAMER BERNARD
IPC: C07C2/66
Filed: 1968-07-09
Abstract: 1,273,252. Alkylating aromatic hydrocarbons. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 7 July, 1969 [9 July, 1968; 28 Oct., 1968], Nos. 27325/69 and 50935/68. Divided out of 1,272,585. Heading C5E. An aromatic hydrocarbon capable of being alkylated with at least 2 alkyl groups per molecule is reacted in a first zone with an alkylating agent in the presence of an acidic crystalline alumino-silicate catalyst, the catalyst being kept at least partially dispersed in a liquid phase by keeping the liquid phase in turbulent motion; and the liquid phase is withdrawn from the first zone and contacted in a second zone with a catalyst comprising non-dispersed aerolic crystalline alumino-silicate, the second zone being maintained free of alkylating agent and alkylation catalyst originating from the first zone. The aromatic starting material may be benzene, alkylbenzenes, naphthalene, alkyl naphthalenes or anthracene. The alkylating agent may be olefins, cyclo-olefins, alkyl halides or alcohols. Polyalkylated aromatics react in the second zone with the starting material to form the mono-alkylated aromatic hydrocarbon. Examples describe the preparation of isopropyl benzene from benzene and propylene using a synthetic faujasite catalyst.
Patent GB-1022480-A (GB)
Title: Production of mannitol and sorbitol
IPC: C07C31/26
Filed: 1963-12-30
Abstract: Mannitol and sorbitol are produced from a mixture of glucose and fructose by adjusting the pH of an aqueous solution of the sugars to substantially neutral, catalytically hydrogenating the solution at 50-80 DEG  C. under a hydrogen pressure of 500-3000 p.s.i.g. for 0.25 to 2 hours until substantially all of the fructose is converted to mannitol and sorbitol, adjusting the pH to between 8 and 11 by the addition of an alkaline agent and continuing the hydrogenation until substantially all of the reducible sugars are hydrogenated.  If desired, after the second hydrogenation step, sufficient acid may be added to the final solution to lower the pH to below 6.5 and the acidified mixture further hydrogenated until any reducible sugar formed by acid hydrolysis is hydrogenated.  The starting mixture of sugars may be obtained by inversion of sucrose using an acid solution. Suitable hydrogenation catalyst are, for example, supported nickel or noble metals.
Patent GB-1493630-A (GB)
Title: Organo-aluminium-silicon reducing agents
IPC: C08G77/398
Filed: 1974-11-26
Abstract: 1493630 Organo-aluminium-silicon reducing agents; polymerization catalysts WAKIECHEMIE GmbH 26 Nov 1974 [27 March 1974] 51186/74 Heading C3S An organo-aluminium-silicon reducing agent is prepared by reacting an organo-hydrogenopolysiloxane consisting of units of the general formula R(H)SiO where R is an alkyl group having up to 6 carbon atoms, an aryl group, or a cycloalkyl group, and in which the valencies of any terminal silicon atoms are satisfied by groups within the definition of R and/or by not more than one hydrogen atom per silicon atom and/or by not more than one hydroxy group per silicon atom, and having a viscosity of from 5-100 cSt. at 25 C., with a dialkylaluminium hydride, the alkyl groups of which each have 2-8 carbon atoms, at a temperature not exceeding 80 C., and in a molar ratio of from 0À8 to 2 moles of siloxane units per mole of dialkyl-aluminium hydride. The reducing agent is believed to have the formula H 2 RSiO-AlR<SP>1</SP> 2 . The reaction can be carried out either discontinuously or continuously, e.g. by means of a cascade arrangement. The polysiloxane may be a methylhydrogenopolysiloxane, an ethylhydrogenopolysiloxane or a phenylhydrogenopolysiloxane each endblocked with trimethylsilyl groups, or methylhydrogenocyclotrisiloxane, or methylhydrogenocyclotetrasiloxane The reducing agents may be used for reducing compounds of metals of Group IVn-VIIa or VIII either to the corresponding low-valency metal compounds or to the metals themselves which can be used as catalysts for hydrogenation, addition and polymerization reactions. In the examples reducing agents are prepared by reacting a methylhydrogenopolysiloxane with either (1) diethyl-aluminium hydride, or (2) di - n - butyl - aluminium hydride, or (3) diisobutyl-aluminium hydride, or by reacting diethyl-aluminium hydride with an ethylhydrogenopolysiloxane. A reducing agent of the formula H 2 Si(CH 3 )-O-Al[CH 2 CH(CH 3 ) 2 ] dissolved in isooctane is used to reduce TiCl 4  to Ti<SP>3+</SP> and the reaction product obtained can be used as a catalyst for the low-pressure polymerization of ethylene and other alpha-olefins.
Patent GB-1519777-A (GB)
Title: Systems for making and packing cigarettes
IPC: A24C5/39
Filed: 1974-11-27
Abstract: 1519777 Conveyers MOLINS Ltd 26 Nov 1975 [27 Nov 1974] 51321/74 Heading B8A A system for making and packing cigarettes includes four units A-D, each comprising a cigarette making machine such as 2A, a cigarette packing machine 4A and a cigarette reservoir 6A, the maker/packer/reservoir of each unit being connected by an overhead conveyer assembly (10AA, 10A, 10AAA), Fig. 2 (not shown), the portion (10 AAA) of that conveyer assembly leading via a shoot 7A to a transfer conveyer 8 which leads to two additional packing machines 4M, 4N, each of which is associated with a respective reservoir 6M, 6N. In this system the output of each making machine 2 is greater than that of the associated packing machine 4 so that the additional packing machines 4M, 4N receive the excess cigarettes from the making machines 2 via conveyer 8. The system can be arranged so that all the making machines 2 continuously supply some cigarettes to the conveyer 8, or else that the conveyer 8 may be supplied by successive making machines 2 on a time sharing basis which means that for a given period the conveyer 8 receives the full output from one machine 2 and then another machine 2 supplies conveyer 8 for a given period and so on. The embodiment of Fig. 4 (not shown) is similar to that of Fig. 1 in that it includes four maker/packer/reservoir units (A-D), but the output of each cigarette making machine is less than that of its associated packer, so that an additional cigarette making machine (56) is connected with the said units by means of a transfer conveyer (58A-58D).
Patent GB-1369896-A (GB)
Title: Machine tool having a control device
IPC: B23Q5/52
Filed: 1972-11-08
Abstract: 1369896 Machine tool control A P GARITANO 8 Nov 1972 [17 Jan 1972 18 March 1972] 51474/72 Heading B3B  A machine tool in which a tool 39 is carried on a transverse slide, e.g. a cross slide 40, superposed on a longitudinal slide, e.g. a saddle 12, includes a control device for programming transverse adjustments of the tool according to its longitudinal displacement, the control device comprising stop devices operating through respective microswitches and electric circuits to control the drives to the saddle 12 and cross slide 40, and a push button channel selector 10, 11 to select individual machining steps in the programme to produce the desired finished workpiece profile. The longitudinal stop device comprises a pattern 1 mounted between centres 9 and adjustable in position along the bed 5 by means of supports 3. The saddle 12 includes a feeler 13 engaging the pattern 1 and when a shoulder 14 is engaged an electromechanical device operates a lever to disconnect a clutch in the lead screw drive for the saddle 12. When the saddle has stopped a required channel 10 is selected to set the transverse position of the tool 39. The transverse stop device comprises a rod 25 mounted at the rear of the cross slide 4 and having spacers 27 clamped between collars 26. The spacers 27 operate a microswitch 29 which controls a magnetic clutch 35 in the lead screw drive 36, 35, 33 for the cross slide 40. The tool 39 is withdrawn a distance greater than required then fed inwards to avoid effects of backlash. More than one rod and spacer arrangement 25, 27 may be provided to increase the number of transverse stop positions. Longitudinal and transverse drives may be operated simultaneously under the control of programme means to produce required profiles.
Patent GB-1284186-A (GB)
Title: Work transporting apparatus
IPC: B65G51/03
Filed: 1970-10-29
Abstract: 1284186 Pneumatic floatation conveyers LA SALLE MACHINE TOOL Inc 29 Oct 1970 [5 March 1970] 51537/70 Heading B8A [Also in Division B7] A device for transporting pallets 14 carrying workpieces 16 comprises a pair of rails 12 on which the pallets are supported, and means for generating an air cushion between the engaging surfaces of the rails and pallets to facilitate ease of transportation. The air cushion means comprises air passages 24 in the rails 12 and extending from a compressed air supply tube, and terminating at their upper ends in spring closed ball valves, the balls being depressed by a pallet passing thereover to permit escape of air from the passages to form an air cushion.
Patent GB-1431970-A (GB)
Title: Poultry handling apparatus
IPC: A01K37/00
Filed: 1973-11-06
Abstract: 1431970 Poultry handling apparatus A J RANDOLPH and A G HORSTING 6 Nov 1973 [2 Aug 1973] 51538/73 Heading A5R Poultry handling apparatus includes a chair 11, Figure 1, for a first operator 21 carrying out artificial insemination, and a pair of respectively fixed and movable pads 44, 47 for clamping poultry legs therebetween adjustably mounted on chair 11, the movable pad 47 being attached to a U-shaped member 49 pivoted with respect to pad 44 by a cylinder 56, Figure 6, a cylinder actuator 62 for operation by a second operator so as to close the pads and a release lever 74 being mounted for engagement by the knee of the first operator for reverse-actuating of cylinder 56 to open the pads. Pad 44 and member 49 are carried on a plate 43 pivotally attached via a shaft 41 to a horizontal support arm 31 adjustably mounted and set by screws 33 in a cylinder 32, which cylinder 32 is in turn carried on an upright member 36 adjustably mounted and set by screws 38 in a support 37 attached to a leg 14 of chair 11. Cylinder 56 is pivoted between an extension 57 of plate 43 and the member 49. The insemination apparatus comprises a valve 92 actuated by operator 21 to propel semen from a straw 93 by air supplied through a line 91. Used straws are discharged into a container 98 and fresh ones loaded from a filler 94. The cylinder 56 may be either pneumatic or hydraulic with inlet and exhaust lines, actuator 62 operating a valve 61 to supply fluid to cylinder 56 via a line (59), Figure 3 (not shown), a second line (58) being connected to atmosphere. Operation of lever 74 applies air via a line (58a), Figure 4, (not shown), to valve 61, deactuating valve 61 so that fluid is supplied to cylinder 56 via line (59), line (58) being connected to atmosphere; the cylinder 56 is thus reverse-actuated to release the pads 44, 47.
Patent GB-1419383-A (GB)
Title: Catalyst for electrophilic processes and method for preparing  same
IPC: B01J31/16
Filed: 1972-11-10
Abstract: 1419383 Alkyl aluminium halide complexes P G PAUTOV N B ARKHIPOV V E DOBROVINSKY V A NABILKINA E G TIMOFEEV Y N PROKOFIEV E G LAZARIANTS N V SCHERBAKOVA V D PETROVA A G TSVETKOVA J V LEBEDEV K S MINSKER N M RODIONOVA V M SOBOLEV G A STEPANOV G V EMELYANOVA A V VINOGRADOVA K Y KRAPIVINA E V KOLOSOVA L N VLADYKIN L I SLETOVA A P ORLOVA T N YATSYSHINA and V P BUGROV 10 Nov 1972 51924/72 Heading C2J [Also in Divisions B1 C3 and C5] Catalysts consisting of a solution containing R n AlX 3-n .ZH 2  and optionally R n AlX 3-n  wherein R is alkyl, X is a halogen atom, Z is an oxygen or sulphur atom and n is 1 or 1À5 is prepared by forming a solution containing 0À2-100 g/l. of R n AlX 3-n  in an anhydrous alkane, chloroalkane, saturated alicyclic hydrocarbon and/or aromatic hydrocarbon; adding to the solution H 2 Z in admixture with or in combination with a carrier which is insoluble in the solvent; the amount of H 2 Z added being such that the molar ratio of R n AlX 3-n  : H 2 Z is 1 : 0À5 to 1 : 1À5 and the temperature being maintained at from - 100‹ to + 70‹ C.; and separating the insoluble carrier from the solution to give the catalyst solution. Examples describe the preparation of solutions containing C 2 H 5 AlCl 2 .OH 2  in benzene, or benzene and methyl chloride, and C 2 H 5 AlBr 2 .OH 2  in n-pentane and each containing excess organoaluminium halide using a hydrated metal sulphate as the carrier-water combination. In other examples a solution containing i-C 4 H 8 AlCl 2 .OH 2  and uncomplexed organoaluminium halide in cyclohexane is made by introducing the water through an atomizer and a solution containing (C 2 H 5 ) 1À5 AlCl 1À5 .OH 2  in isopentane is made using humidified nitrogen.
Patent GB-1278306-A (GB)
Title: Improvements in or relating to antennas
Inventor: AJIOKA JAMES SHUSAKU
IPC: H01Q13/02
Filed: 1969-10-23
Abstract: 1278306 Aerials HUGHES AIRCRAFT CO 23 Oct 1969 [28 Oct 1968] 51988/69 Heading H4A In a horn aerial first and second electromagnetic waves are respectively launched within a first portion thereof. The second wave is slower than the first, but it is converted into a third electromagnetic wave which is faster than the first, and with which it travels through a second portion of the horn to its aperture. The first and third waves combine to provide a radiation pattern having reduced side lobes over a wide frequency range. As described, a conical horn 22, Fig. 3, includes a throat section 23 with an arm 24. Longitudinal rods 25, 26 extend from the centre conductors 27, 28 of coaxial lines 29, 30 through the throat section 23 and then fan out along the inner surface of the conical portion of the horn. A disc 30 at the end of throat section 23 provides a termination for the outer conductors of the lines 29, 30. The inner conductors of said lines are taken to opposite polarity outputs of a hybrid junction 32, input to which is provided from a line 36 through a power divider 34 and a variable phase shifter 33. A TEM wave is thereby launched along the rods 25, 26. Another output from the power divider 34 is taken to a probe in the arm 24, and this sets up a TE 11  wave in the throat section 23. At the ends of the rods 25, 26 the TEM wave therealong is converted into a TM 11  wave, which combines with the TE 11  wave. In another embodiment, a TE 11  wave is launched from the end of a throat section of a conical horn and energy is abstracted from it by means of two oppositely disposed inwardly directed radial probes, which are connected to respective rods extending towards the aperture of the horn, and along which a TEM wave is developed (Fig. 1, not shown). More than two TEM launching rods may be used, and to maintain a constant characteristic impedance the diameters of the rods and their spacings may be increased with the flaring out of the horn, so as to give geometrical similarity at any cross-section (Figs. 5A, 5B, not shown). The relative phases of the signals applied to N rods may be progressively increased by 2#M/N from rod to rod (where M is an integer). For impedance matching purposes discontinuities, such as ferrules or undercuts, may be provided at or near the ends of the rods (Fig. 6, not shown). Embodiments using pyramidal horns are also described (Figs. 7A, 7B, 8, not shown).
Patent GB-1448893-A (GB)
Title: Tri-fuel burner for process gases
IPC: F23D17/00
Filed: 1974-12-02
Abstract: 1448893 Burners JOHN ZINK CO 2 Dec 1974 [26 Dec 1973] 51999/74 Heading F4T A burner for the forced burning of low-heatvalue-gases comprises a cylindrical metal housing 12 with a stepped-refractory lining 14, adapted to be fixed to a furnace wall 18, combustion air annular inlet 54, at a first diameter of the lining, fuel gas inlets 64 at a second larger diameter 56 for tangential introduction of the gas, and lean gas inlets 66 at a third larger diameter 58 for tangential introduction of the lean gas. A liquid fuel nozzle 34 is provided and combustion air controlled by a slidable diaphragm 42 is supplied to the nozzle along line 45. The flow of fuel gas and lean gas is helical and may be in a clockwise direction, Figs. 2 and 3 (not shown), or the flows may be in opposite directions. Liquid and/  or gaseous fuel may be burned.
Patent GB-1463175-A (GB)
Title: Process for preparing complex polyelectrolytes
IPC: C08F299/00
Filed: 1974-12-03
Abstract: 1463175 Complex polyelectrolytes RHONEPOULENC SA 3 Dec 1974 [4 Dec 1973 1 Aug 1974] 52265/74 Addition to 1367238 Heading C3P Complex polyelectrolytes are produced from (i) a water-insoluble polymer containing sulphonic acid groups and (ii) a water-insoluble polymer containing quaternary ammonium groups, by either (a) mixing a powder of one polymer with a solution of the other, or (b) mixing together powders of each polymer and then dissolving the mixture. Numerous suitable polymers are listed. In examples, (1) a powder of acrylonitrile/2-methyl-5-vinyl pyridine copolymer quaternized with methyl sulphate is added to a solution in dimethyl formamide/ water mixture of acrylonitrile/sodium methallyl sulphonate copolymer; (2) the same two polymers are mixed in powder form and the mixture then dissolved in the same solvent; and (3) the same two polymers plus lithium chloride are mixed in powder form and the mixture then dissolved in dimethyl formamide. In each case the solution is heated until it becomes clear.
Patent GB-1109737-A (GB)
Title: Improvements in or relating to installations for making x-ray photographs
IPC: H05G1/36
Filed: 1965-12-13
Abstract: 1,109,737. Radiographic apparatus. NEDERLANDSCHE RONTGEN - APPARATENFABRIEK EVERHEDENRAF N.V. 13 Dec., 1965 [16 Dec., 1964], No. 52787/65. Heading H5R. [Also in Division H2] An X-ray operating system comprises means for automatically timing the exposure together with over-riding timing means should the automatic timing means fail to operate together with means for increasing the voltage applied to the cathode of the X-ray tube when an exposure is being made so as to cause an increase in the tube current during exposure. Closure of a main switch 10 causes a reduced energization of the cathode 7 of an X-ray tube 6 by way of transformer 13, variable resistors 14, 15 and a voltage-stabilizing device 26 whereby the tube 6 is maintained in readiness for use. An exposure is initiated by closing a manually operated switch 17 which energizes relay coil 12 to close contacts 11, 16 thus applying a high voltage to the anode 5 of the tube and short-circuiting resistor 15 whereby the energization of the cathode 7 is increased thus continuously increasing the tube current during exposure. The exposure is timed by a photo-cell 20 which causes a capacitor 21 to charge. When this charge reaches a given value thyratron 22 becomes conductive to energize relay 19 opening contacts 18. Relay 12 is then de-energized, contacts 11, 16 open and the high voltage is removed from the tube 6 whilst the energization of the cathode 7 is reduced to its " readiness for use " value. Should the photo-cell timing device fail to function a known time limit protection relay 23 will operate to de-energize the relay 12.