baber/WOPTO huggingface dataset:
Patent GB-1214852-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
Inventor: GEIGER EUGENE JOSEF
IPC: F02F3/08
Filed: 1968-01-05
Abstract: 1,214,852. Combustion chambers. INTERNATIONAL HARVESTER CO. Jan. 5, 1968 No.49407/67. Heading F1B . [Also in Divisions B3 and F2] A piston 10 for an I.C. engine has an annular insert 22, prestressed to be in a state of compression, defining an opening 21 in the head 11. The ring 26 is heat shrunk on to the insert 22 to provide the prestress. The piston 10 is formed by casting around the prestressed insert 22, the flange 24 locking the insert in position. The upper piston ring groove 15 is formed by a ring 16, e. g. of a ferrous alloy. In a second embodiment, Fig. 3 (not shown), the prestressed insert (27) is integrally connected by radial arms (31) to a ring (32) defining the upper piston ring groove (15A). The ring 26 is made from a material, e. g. austenitic or martensitic stainless steel or a nickel-ferrous alloy, having a co-efficient of expansion greater than or equal to that of the piston material, e. g. aluminium or aluminium alloy, and greater than that of the insert material, e. g. a nickel-ferrous alloy or grey cast iron.
Patent GB-1427336-A (GB)
Title: Electrical ignition systems in gas burning appliances
IPC: F23Q2/28
Filed: 1972-10-26
Abstract: 1427336 Ignition circuits BRITISH GAS CORP 25 Oct 1973 [26 Oct 1972] 49436/72 Headings F4F and F4T A gas burning appliance has an ignition system of the hot wire type comprising a capacitor 12 which is arranged to discharge through the igniter filament 9 so heat the filament for gas ignition, means for connection to an electrical power source 1 for charging the capacitor, and a switch for controlling when the capacitor discharges. The filament 9 is preferably of molybdenum disilicide. In the embodiment of Fig. 1 the connection means comprises a mains transformer 2 and bridge rectifier 5 connected across the capacitor 12 and providing D.C. current for charging the capacitor. Rectifier 5 is also connected across a further capacitor 13 connected through a glow discharge tube 15 to a thyristor 10. Closure of switch 4 causes capacitors 12, 13 to charge at rates determined by resistances 7 and 14 respectively. At a predetermined potential tube 15 arcs and capacitor 13 discharges to trigger thyristor 10 to conducting state. Capacitor 12 then discharges through filament 9 in a high energy pulse. Inductance 8 is such that after discharge of capacitor 12 the current in the circuit is below the holding current of thyristor 10 so that the ignition cycle is repeated as long as switch 4 is closed. In a modification means is provided whereby the ignition cycle is non-repetitive. In a further modification a normally open mechanical switch is provided in series with the capacitor 12 and filament 9 and is closed to discharge the capacitor through the filament.
Patent GB-1220068-A (GB)
Title: Improvements in or relating to signal selection systems
Inventor: LEWIS LEON DAVID
IPC: G01R19/00
Filed: 1967-11-01
Abstract: 1,220,068. Selecting signals according to amplitude. ULTRA ELECTRONICS Ltd. 1 Nov., 1968 [1 Nov., 1967], No. 49549/67. Heading H3T. [Also in Division G3] A channel selecting circuit comprises in each channel an amplifier connected to a common output point through a unidirectional channelselecting element and a negative feedback path between the output point and the amplifier input. As described, the invention is applied to a closed loop electrical control system for an aircraft engine to prevent the speed being increased when the engine temperature is excessive. It is stated also to be applicable to hydraulic or pneumatic systems. In Fig. 5, e1 varies with engine speed, e2 with throttle demand and e3 with engine temperature. Diodes 19 and 24 select the larger of e1 and e2 and diodes 20 and 34 the largest of these and e3. The diodes are with the feedback loops of the respective amplifiers and this squares the cut-off characteristic and stabilizes the diode performance.
Patent GB-1344663-A (GB)
Title: Isoindoline compounds
IPC: C07D209/44
Filed: 1971-10-27
Abstract: 1344663 Isoindolinone derivatives CARLO ERBA SpA 27 Oct 1971 [5 Nov 1970 10 Nov 1970] 49918/71 Heading C2C The invention comprises compounds of formula wherein R is H or C 1-4  alkyl, R 1  is H, alkyl or (CH 2 ) n NR<SP>2</SP>R<SP>3</SP>, n is 1 or 2 and R<SP>2</SP>, R<SP>3</SP> are each H or C 1-4  alkyl, and their physiologically acceptable addition salts (where R 1  is H or aminoalkyl). In examples, these compounds are prepared (1) when R 1  is H, by hydrolysing (a) the corresponding esters or nitriles (II), or (b) the analogous iminoisoindolinecarboxylic acids or alkyl esters; (2) when R 1  is alkyl, by (a) esterifying the acids, (b) reducing the analogous phthalimide compounds, (c) reacting the corresponding alkyl p-aminophenylacetates with phthalide, thiophthalide or phthalaldehyde; (3) when R 1  is aminoalkyl, by reacting the corresponding acid chlorides with R<SP>2</SP>R<SP>3</SP>N(CH 2 ) n OH. Also prepared are the iminoisoindoline and phthalimide analogues of II. Therapeutic compositions having analgesic and anti-inflammatory activity comprise compounds of the above formula, and may be administered orally, parenterally, rectally or topically.
Patent GB-1106717-A (GB)
Title: Photographic materials
IPC: C08F28/00
Filed: 1966-11-08
Abstract: Water-insoluble polymers employed in photographic materials comprise (i) at least 65% by weight of a monomer of formula CH2= CRCOOR1, in which R is H or CH3 and R1 is alkyl, (ii) up to 20% by weight of a monomer of formula CH2=CR1-COOR11-SO3M in which R1 is H or alkyl, R11 has its valence bonds on different carbon atoms and is a divalent hydrocarbon radical or a divalent aliphatic hydrocarbon radical in which the chain of carbon atoms joining the O and S atoms is interrupted by at least one O and/or S atom and M is a cation, e.g. H, an alkali metal, ammonium or an organic amine cation and (iii) 0-20% by weight of a polymerizable ethylenically unsaturated monomer that is different from (i) and (ii).  Specified components (iii) are acrylo- and methacrylonitrile, styrene, a -methyl styrene, vinyl chloride, vinylidene chloride, methyl vinyl ketone, vinyl acetate, fumaric, maleic and itaconic esters, 2-chloro ethyl vinyl ether, methylene malonitrile, acrylic acid, methacylic acid, dimethyl amino ethyl methacrylate, glycidyl methacrylate, N-vinyl-succinimide or phthalimide, Nvinyl pyrrolidone, butadiene isoprene and vinylidene cyanide.  The polymers can be prepared by polymerizing the appropriate monomers in a diluent or solvent, e.g. water or a water-alkanol mixture, using catalysts such as hydrogen peroxide, cumene hydroperoxide, azo compounds and redox systems.  Specific copolymer combinations are given in the examples.
Patent GB-500073-A (GB)
Abstract: 500,073. Two -stroke engines. GIRO, F. Dec. 31, 1937, No. 36216. [Class 7 (ii)] In a two-stroke engine in which each unit comprises cross-connected pairs of working and pumping cylinders 1, 2 respectively, the transfer, passages 14 form part of the compression spaces of the pump cylinders and the pump piston connecting-rods 6, 9 are articulated to the working piston connecting-rods 5, 8, which are themselves articulated to the crank-pins. The inclination of the cylinders to one another is inversely proportional to the engine speed. A common air filter 17 and manifold 16 supply the pump cylinders and exhaust is through a common pipe 12.
Patent GB-1300594-A (GB)
Title: Improved centrifugal pump
Inventor: SCHROEDER EARLE EDWIN
IPC: F04D29/62
Filed: 1970-10-21
Abstract: 1300594 Centrifugal pumps ALLISCHALMERS MFG CO 21 Oct 1970 [23 Oct 1969] 50008/70 Heading F1C In a centrifugal pump having an inlet 7 and an aligned outlet 8, the pump casing 6 has coaxial apertures 12,13 on opposite sides of the impeller 18 and each aperture is covered by a respective removable member 19,14. After removing the member 14 and nuts from studs 24, the impeller 18 and member 19 can be removed through aperture 13. Alternatively, after removing nuts from studs 31, the motor 32, impeller 18, member 19 and spacer 28 can be removed as a single unit from the top of the pump casing.
Patent GB-1522889-A (GB)
Title: Linear polyesters
IPC: C09D167/00
Filed: 1976-12-01
Abstract: 1522889 Hydroxy-group containing polyesters DYNAMIT NOBEL AG 1 Dec 1976 [3 Dec 1975] 50189/76 Heading C3R A hydroxyl group containing linear polyester is derived from (a) an acid component comprising (i) from 45 to 55 mol. per cent of terephthalic acid or ester thereof, (ii) from 35 to 45 mol per cent of an aromatic dicarboxylic acid other than terephthalic acid, or ester thereof, and (iii) from 0 to 20 mol per cent of a cycloaliphatic or aliphatic dicarboxylic acid, and (b) an alcohol component comprising (i) from 20 to 30 mol. per cent of hydroxy pivalic and neopentyl glycol ester, (ii) from 20 to 30 mol. per cent of a branched chain aliphatic diol, and (iii) from 40 to 60 mol. per cent of ethylene glycol. Up to 10 mol. per cent of the ethylene glycol may be replaced by a straight chain aliphatic diol or by an ether diol. A lacquer may be prepared containing the polyester, an aminoplast and a solvent, optionally with conventional lacquer additives, and the lacquer may be coated on aluminium sheets.
Patent GB-1472437-A (GB)
Title: Apparatus for uniform irradiation using electromagnetic rays
IPC: A61L2/08
Filed: 1974-11-20
Abstract: 1472437 Irradiation apparatus K-H TETZLAFF 20 Nov 1974 [24 Nov 1973] 50243/74 Heading H5R To allow uniform irradiation from an X or gamma ray source of large densely packed containers of material, each substantially symmetrical about an axis, shields are placed to mask ray paths not in line with the axes of the containers. Relative movement of source and containers in the axial direction, with more than average exposure time spent away from the central position also improves uniformity; shielding near the central region also may assist. Six long containers 2, cylindrical or square (Fig. 3, not shown), are carried by thin-wall hollow shafts 4 rotated in alternate directions by drive mechanism on a base-plate 8 which is itself rotated or oscillated for loading and/or to smooth out angular variation in source 1. Shields 5 are placed to mask all but the rays through the axial regions. The source 1 is reciprocated continuously or step-wise over range 6 to 7 with more than proportionate time spent at the extremes. If the source is an X-ray anode, the beam power may be modulated. Alternatively, a ring of long sources may be placed round a fixed container (Fig. 4, not shown), with excess activity at the ends, and shields to mask-off centre rays, providing uniform irradiation with no necessity of moving parts. With the first embodiment and typical figures for size and packing density the maximum exposure ratio (overdosage factor) is 1À04 and 19% of the emitted source radiation is absorbed in the target. With square containers and similar dimensions, figures of 1À3 and 18% are obtained. The bases and lids are made of heavy steel plates to further assist in levelling out extremes in the exposure distribution; the shields are of angle iron.
Patent GB-1066591-A (GB)
Title: Fm modulation system using a variable retardation circuit
IPC: H03C3/22
Filed: 1963-12-20
Abstract: 1,066,591. Frequency modulation. NIPPON VICTOR KABUSHIKI KAISHA. Dec. 20, 1963 [Dec. 31, 1962], No. 50375/63. Heading H3R. A transistor frequency-modulated phase-shift oscillator comprises a phase-shifting artificial line L, D 1  . . . D 3 , to the voltage variable semiconductor capacitors D 1 -D 3  of which modulation is applied through an emitter follower TR 3 . A capacitor C1 and emitter follower TR 1  completes the oscillator feedback path. The phase shift in the feedback path may alternatively be effected by using a voltage variable inductor.
Patent GB-1075137-A (GB)
Title: Agricultural machines for spreading fertilizers, seeds and other materials
IPC: A01C17/00
Filed: 1964-12-18
Abstract: The subject-matter described is the same as that described in Specification 1,075,136 but the claims differ.
Patent GB-1071749-A (GB)
Title: An improved cutting tool assembly for a lathe
IPC: B23B27/20
Filed: 1963-12-31
Abstract: 1,071,749. Lathe tools. THUGUS MEK VERKSTAD A.B. Dec. 31, 1963 [Jan. 7, 1963 (2); Feb. 12, 1963], No. 51317/63. Heading B3B. A lathe tool comprises a holder 10, Fig. 1, having an arcuate rebate, and a flange 16, Fig. 2 (not shown), a tapered bore 15 in the flange for receiving the part (18) of a cutting tip, Figs. 3 and 4 (not shown). The tip is frictionally held in bore 15 and can be removed therefrom by inserting a tool into a bore (17) in the holder, Fig. 1, to thus engage the end of the tip. The tip of Figs. 5 and 6 (not shown) may replace the tip of Figs. 3 and 4 (not shown).
Patent GB-1186244-A (GB)
Title: Double-Acting Hydraulic Cable Pulling System.
IPC: F15B11/20
Filed: 1967-11-14
Abstract: 1,186,244. Fluid pressure apparatus acting through ropes. TRACTEL S.A. 14 Nov., 1967 [14 Nov., 1966; 16 Nov., 1966; 12 April, 1967; 13 April, 1967], No. 51657/67. Heading B8B. [Also in Division Fl] An hydraulic cable traction apparatus coinprises two double acting hydraulic actuators 7, 8 in series and through the piston rods 3, 4 and cylinders of which the cable extends, and self-clamping cable clamps 1, 2 on the ends of the rods 3, 4, the two chambers 9, 11 and 10, 12 of both actuators being connected to a common hydraulic circuit which controls in synchronism, the movements in opposite directions of the piston rods and the automatic reversal of their strokes. While the clamp 2 in the unclamped position slides to the right (in the Figure) along the cable, the clamp 1 clamps the cable and hauls it to the left until a spring return distributer 37 is actuated by the clamp 1 whereby monitor pressure lines 34, 35 are coupled and a distributer 31 is reversed. This latter operation couples the pressure supply line 32 through a non-return valve, to the chamber 12 of actuator 8 instead of to the chamber 11 of actuator 7. However, with the circuit shown in the Figure the chamber 11 is fed from the line 32 and the piston 5 moves to the left whereby fluid in the chamber 9 is transferred via a line 13 to the chamber 10 of the actuator 8, the piston 6 thereof moving to the right while the chamber 12 is discharged through a spring returned exhaust valve 18. The latter is opened by pressure in a monitor line 22 which is coupled through a spring returned distributer 24 to a monitor line 14 in communication with the line 13. The distributer 24 is opened by pressure in a monitor line 30 in communication -with the supply line to the chamber 11. An exhaust valve 19 for the chamber 11 is closed by exhausting its monitor line 21 through a distributer 23 which is in its spring returned position since its monitor line 29 is coupled into the line exhausting the chamber 12. The embodiment of Fig. 2 (not shown) comprises an auxiliary hydraulic actuator associated with each first said actuator and having its piston rod linked to the associated clamp whereby the opening of the clamps is hydraulically controlled and the apparatus can be used for steadying the " paying out " of the cable. In the embodiment of Fig. 3 (not shown) continuous traction of the cable is achieved by closing the clamp to be closed before opening the clamp to be opened, the non-hauling stroke of the appropriate piston assembly taking less time than the hauling stroke of the other piston assembly. In the embodiment of Fig. 4 (not shown) for paying out cable, hydro-pneumatic accumulators in the hydraulic circuit are used to store energy during unclamped piston strokes of the actuators, and to give it up (during the clamped strokes whereby an external source of fluid pressure supply is not required.
Patent GB-1081958-A (GB)
Title: Improvements in or relating to fluid jet devices
Inventor: MITCHELL ALLAN EDMUND
IPC: F15C1/10
Filed: 1965-01-04
Abstract: 1,081,958. Pure fluid amplifier. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan.4, 1965 [Jan. 7, 1964], No.51755/64. Heading G3H. [Also in Division G4] A fluid pulsed-jet device comprises a pulsed power jet 1 leading to an interaction chamber 4 which receives control signals from inlets 5 or 6. The control signals are supplied as a low pressure steady flow and a signal from inlet 5 will form a clockwise vortex in the chamber 4 so that the pulsed jet issuing from nozzle 1 flows to the outlet 14, 7 and locks on to the wall 2. The control signal from inlet 6 has the reverse effect to direct the jet to the outlet 3, 8. However, if the control signal is changed from inlet 5 to 6 while the pulsed jet is flowing, this prevents the forming of the anti-clockwise vortex until the pressure pulse ceases and the vent pulse is then directed to outlet 3. Passages 9a, 9b are provided to equalise static pressures. In a modification, the device is asymmetrical and only one control signal passage is then necessary. Such a device may be used in a binary counter or shift register (see Division G4).
Patent GB-1375415-A (GB)
IPC: B60C17/04
Filed: 1971-11-08
Abstract: 1375415 Pneumatic tyre and wheel rim assemblies T C PATECELL 8 Nov 1971 51822/71 Heading B7C A pneumatic tyre 28 and wheel rim 24 assembly is provided with a safety insert intended to become load bearing should the tyre deflate, the insert comprising a plurality of arcuate members, e.g. 11, 11<SP>1</SP>, coupled together to form a ring, each arcuate member having at each end a coupling portion interfitting with the adjacent coupling portion of the adjacent arcuate member and coupled to this adjacent coupling portion by disengageable coupling means, means being provided at the inner periphery of the insert to maintain the insert in a predetermined position axially of the rim, and the inner periphery of the insert engaging the rim in such a manner that the insert will rotate with the rim when the tyre is inflated but can slip circumferentially relative to the rim when the tyre deflates and the insert becomes load bearing. In the embodiment shown in Figs. 1 and 4, the two arcuate members 11, 11<SP>1</SP> are each cast or moulded from plastics material and are provided with recesses 31, 31<SP>1</SP>, 32, 32<SP>1</SP> serving to reduce the weight of the insert. Each coupling portion is of generally circular form as illustrated in Fig. 1, adjacent coupling portions overlapping one another in the manner shown in Fig. 4, and being coupled by coupling means in the form of a wing-headed bolt 19 which has a shank with a frusto-conical portion 20 received in a similarly shaped aperture 20 in one coupling portion and a screw threaded cylindrical portion 18 received in a nut 16<SP>1</SP> held on the other coupling portion. The wheel rim may have a well and in this case the means to maintain the insert in a predetermined axial position on the rim may be provided by spaced lugs 11a as shown in Fig. 1, which cause the insert to engage both sides of the well or alternatively by shaping the inner periphery of the insert to fit the well. An alternative embodiment, Fig. 8, is similar to that shown in Figs. 1 and 4, except that each arcuate member has a metal, e.g. aluminium, body 41 of I-section with integrally formed stiffening webs 42 and plastics bands 37, 38 secured to the inner and outer peripheries, the bands being as wide or wider than the flanges of the I-section body. In both of the above described embodiments the plastics material used may be polyethylene or polypropylene and may be reinforced with strands or fabric of glass fibre, the provision of plastics material at the inner periphery of the insert serving to facilitate the above mentioned circumferential slippage of the insert.
Patent GB-1090660-A (GB)
Title: Improvements relating to naphthoxidines and their use as dyestuffs
Inventor: BOSSHARD HANS
IPC: C09B44/00
Filed: 1965-12-08
Abstract: The invention comprises arylated naphthoxidines of the general formula <FORM:1090660/C4-C5/1> wherein R represents radicals each of which may be identical or different from the other and is selected from halogen, alkyl, alkoxy, alkylamino, or dialkylamino, said alkyl having from 1 to 4 carbon atoms, hydroxy or nitro, X represents radicals, each of which may be identical or different, selected from hydrogen, halogen an alkyl having from 1 to 5 carbon atoms, m is 1 or 2 and n is 1 to 3.  The dyestuffs may be made by reacting 1 mole of a naphthoxidine of the formula <FORM:1090660/C4-C5/2> with 1 mole of a diazonium compound of the formula <FORM:1090660/C4-C5/3> wherein A- is an anion, such as Cl-, NO3-, SO4-, and HCOO-, optionally followed by treatment with agents providing halogenation in one or more of the remaining free b -positions of the arylated naphthalene nucleus.
Patent GB-1121870-A (GB)
Title: Method of subjecting rolled wire directly from a rolling mill, to a treatment with air, and to apparatus for carrying out the method
IPC: C21D9/573
Filed: 1965-12-08
Abstract: 1,121,870. Air treating and winding wire. DEMAG. A.G. 8 Dec., 1965 [14 Dec., 1964], No. 52102/65. Headings B3A and B3E. [Also in Division B8] In a method of subjecting rolled wire arriving directly from a rolling mill to a treatment with air, the wires are delivered by a rotary arm 2 to form the turns of an open coil exposed to a current of cooling air, the wire coils, either individually or in groups, are inserted in a vertical annular shaft 7 through which the cooling air flows, lowered at an adjustable speed by conveying agents 5, and at the end of the shaft 7 are collected in coils on a displaceable table 22. The arm 2 forms the wire into coils on a collector 3, which is movable laterally to allow the coils to fall into the shaft 7. Cooling air is supplied at different temperatures and/or in different amounts in cooling zones 17, 18, 19, the air passing from an annular duet 16 through slots 15 into the shaft. To prevent the shaft core casing 8 rotating with the spindle 11, which is journalled therein, magnets 13, 14 are fitted to the outer casing 7a and core casing 8, respectively. The wire coils are placed on a table 22, and when the table is retracted, a shear is operated to cut the wire connecting the coil with the wire still in the shaft. The coil falls on to a winder 24 from which it is removed after lowering pins 24a.
Patent GB-1298134-A (GB)
Title: Fiber filled urethane elastomer compositions
IPC: C08L75/14
Filed: 1970-11-03
Abstract: 1298134 Elastomeric compositions ATLANTIC RICHFIELD CO 3 Nov 1970 [18 Nov 1969] 52317/70 Heading C3P Elastomeric compositions comprise fibres incorporated into a urethane made by reacting a diisocyanate with a hydroxy-containing intermediate polymer derived from 25-100% of a C 4-12  conjugated diene and 0-75% of a C 2-12  olefinic monomer, the amount of fibres being 0À1-50 wt. per cent based on the intermediate polymer. The intermediate polymer is a liquid polymer defined as containing an average of at least 1À8 predominantly primary terminal allylic hydroxyl groups per average molecule, having a viscosity at 30‹ C. of 5-20,000 poises, a number average M.W. of 400-25,000, and more than 50% of its unsaturation in the main carbon chain. The urethane formation may take place in the additional presence of a polyhydroxy reactant and/or a diamine, the latter resulting in a urea-urethane. The urethane or urea-urethane resin may be formed in situ, or the fibres may be added to pre-formed resin, both alternatives being exemplified. In specific examples, the fibres are of glass; the hydroxycontaining liquid intermediate polymer is derived from butadiene or butadiene-styrene; the diisocyanate used is tolylene diisocyanate or diphenylmethane diisocyanate; the additional  polyhydroxy reactant (when used) is N,N-bis-(2- hydroxy-propyl) aniline; the additional diamine reactant (when used) is 3,3<SP>1</SP>-dichlorobenzidine or N,N - bis - (1,4 - dimethylpentyl) - p - phenylene diamine; and carbon black and naphthenic extender oil are present in some cases. In those examples in which the urethane or ureaurethane resin is produced in situ, stannous octoate or dibutyl tin laurate is present as catalyst.