baber/WOPTO huggingface dataset:
Patent GB-1403021-A (GB)
Title: Filtration systems
IPC: B29C48/691
Filed: 1972-07-14
Abstract: 1403021 Filters for plastics BRUNSWICK CORP 14 July 1972 [2 Sept 197.1] 33016/72 Heading B1D [Also in Division B5] Plastics material is filtered by introducing it through port 18 of a valve body 12 which communicates with either or both of candle filters 34 and 36 and contains two spool valves 14, 16, the spool 30 of valve 14 having a zone 50 of reduced cross-section wherein an axiallyoriented slot 56 communicates with inlet port 18 and with diverter port 22 or diverter port 22', and the spool 32 of valve 16 being similarly formed and associated with filtrate diverter ports 24, 24' and discharge port 20. In Fig 1, the plastics material is flowing through filter 36, but when this fitter becomes clogged, the flow is diverted to filters 34 by moving the spools 30 and 32 by means of handwheel 38 and vernier 48. The zone of reduced crosssection 50 of spool 30 is terminated by sealing shoulders 62 and 64 which mate with a pair of sealing seats 66 and 68 in the valve body. Filters 34 and 36 are contained in housings 26 and 28 which are removably supported on the upper part of valve body 12 (Fig 5, not shown). The housings 26 and 28 have air-vents 42 and 44, respectively. When handwheel 38 is turned. bar 40 moves spool 30 to permit plastics material to slowly fill housing 26; but spool 32 is not moved because air must be purged from the system through vent 42 (Fig 2, not shown). When the operator observes plastics material reaching vent 42, the handwheel 38 and vernier 48 are operated to move spool 32 to the corresponding position as that of spool 30, so as to complete the diversion of flow to filter 34 (Fig 3, not shown). Filter housing 28 can then be removed, and serviced. The filtration system may be used with an extrusion machine for making synthetic yarns, or fine sheets.
Patent GB-1002675-A (GB)
Title: Improvements in refrigerated vehicles
IPC: B62D33/04
Filed: 1964-08-13
Abstract: 1,002,675. Refrigerator vehicles. FRUEHAUF CORPORATION. Aug. 13, 1964 [Oct. 9, 1963], No. 33064/64. Heading B7B. A refrigerator vehicle has apertured lugs 72, 74 and 76, 78 riveted to the side walls of the body to support roof beams 30 by pivots 68, 70, so that loads supported from the beams do not transmit any substantial bending moment on to the side -walls. The lugs 72, 74 have flanged apertures for housing nylon bushes mounted on the bolts 68 carried by the beams 30. Insulating panels 32 held between the flanges 22, 24 of the beams 30 support the roof 34. Extruded members 40, 42 secured to the underside of the beams 30 hold the roof panels 52 and side panels 54, 56, in position. Transverse plates 104, 106 also support the walls 54, 56 and the space between in inner and outer panels may be filled with insulating material.
Patent GB-949550-A (GB)
Title: Improvements in or relating to timers and timer positioning means
IPC: H01H19/58
Filed: 1960-01-21
Abstract: 949,550. Sequence timers. CONTROLS CO. OF AMERICA. Jan. 21, 1960 [March 16, 1959], No. 33264/63. Divided out of 949,541. Heading H2H. A programme timing switch which may be driven to any selected point of the cycle at high speed with the controlled circuits disconnected comprises a plurality of normally open switches SA-SE which determins the cycle starting position. Closure of any one of these switches, e.g. SC also momentarily closes switch M which energizes a high speed motor 48 which changes over a switch 52 disconnecting the slow speed motor 10 and the controlled circuits (not shown) and shunting the switch M. A wiper 86 is driven round the contacts E, D, C in turn and a cam 68 closes a switch SS at each of the points E, D, C &c. so that at the selected point, a relay coil 96 is energized which disconnects the motor 48 and re-energizes the slow speed motor. The switch SS may be omitted. Specification 949,547 also is referred to.
Patent GB-658408-A (GB)
Title: Improvements in or relating to the water feed arrangements of economisers
IPC: F22D1/02
Filed: 1949-12-30
Abstract: 658,408. Feedwater heating systems. HUET, A. Dec. 30, 1949, No. 33359. [Class 64(i)] To prevent condensation of combustion gases on the tubes' 23 of an economizer. part of the feedwater which has passed through the economizer is returned through a line 4, to the fresh water feed line 1b connecting the feed pump 1 to the economizer, and part of the water delivered by the feed pump 1 is diverted from the line 1b leading to the economizer, through a byepass 6 furnished with a control valve 8, to the line 3c leading from the economizer to the point of utilization of the feedwater. The valve 8 is operated manually or automatically.
Patent GB-789319-A (GB)
Title: Agricultural elevators
Inventor: SAVAGE WILLIAM LAWRENCE
IPC: B65G17/36
Filed: 1954-11-18
Abstract: 789,319. Clamp fastenings. BLACKSTONE & CO., Ltd. Nov. 8, 1955 [Nov. 18, 1954], No. 33472/54. Class 44 [Also in Group XXX] Scoops 1 are attached to the cross bars 5 of an agricultural elevator, in which the cross bars 5 are carried by one or more endless chains, by spring clips 12, each clip having a bent forward end 14 engaged in a hole in the floor 4 of the scoop, while its other end 10 is engaged in a slot in a bracket 8 in the scoop and held in place by a nut 16 or an enlargement which allows the clip to be snapped into place.
Patent GB-334819-A (GB)
Abstract: 334,819. Ridder, O. Jan. 5, 1929, [Convention date]. Movable-abutment type; valves, distributing and cut-off; packing drums, vanes, abutments, and the like; cooling and heating parts; working- fluid supply.-In a, rotary engine of the outwardlysliding abutment type, pistons 36 are supported between two rings 5 and 55 which rotate in an annular chamber bounded by inner and outer diameters of two casing parts, 8 and 12. Cams 32, 33 on the working-shaft 1 lift the spring- loaded abutments 24 by bearing on rollers 26 which are fixed to supporting arms 50. A hub 3, keyed to the shaft 1, carries the two rings 5 and 55 and the connecting pistons 36. The outer casing 12 is supported on a frame 35 and has a bearing 11 for the hub 3. Steam is admitted through pipes 18 to valve chests and the supply to the annular chamber is controlled by axiallysliding piston-valves which have end rollers 28 running on the cams 32 and co-operating with ramps 34 which move the piston-valves to right or left to admit or cut-off steam. Steam is exhausted through ports 13 and pipes 14. Hollow jackets 38 and 39 can be used for heating, or if the engine is used as an internal-combustion engine, they can be used for cooling. When used as an internal-combustion engine cover plates 16 are removed to admit scavenging air to the working chamber. A firing plug can be inserted in a pocket 42. Packing pieces are fitted to the piston, rotating rings and sliding abutments. Moving parts are constructed hollow to secure lightness.
Patent GB-987345-A (GB)
Title: 2,2,5,5-tetra-tert.butyl peroxyhexane and its use in the preparation of copolymers of ethylene and ethylenically-unsaturated monomers
IPC: C07C409/16
Filed: 1963-08-23
Abstract: 2,2,5,5-Tetra-tert.-butyl peroxy hexane, a novel peroxide suitable for cross-linking polymers (see Division C3), is made by the reaction of acetonyl acetone and tertiary butyl peroxide catalyzed by anhydrous oxalic acid and removing the water of reaction by azeotropic distillation.ALSO:Copolymers of ethylene and a monomer containing CH2=CH- groups are cross-linked by using as initiator 2,2,5,5,-tetra-tert. butyl peroxyhexane preferably 0.5 to 5% by weight of polymer, optionally in the presence of one or more auxiliary agents, i.e. 0.15 to 1.5% sulphur, 0.5 to 5% of triallyl cyanurate or 0.5 to 5% triallyl phosphate. In the example, the use of ethylene/propylene and ethylene/vinyl acetate copolymers is illustrated and compared with dicumyl peroxide in mixtures also containing carbon black.
Patent GB-1064582-A (GB)
Title: Lipid-containing sustained release pharmaceutical compositions
Inventor: PLAYFAIR MALCOLM LYON
IPC: A61K9/24
Filed: 1964-08-17
Abstract: Sustained release pharmaceutical compositions for oral administration comprise a homogeneous mixture of one or more drugs with one or more digestible fatty materials, one or more swelling agents, and one or more digestion-resistant waxy materials in a proportion not exceeding 10% of the total weight of the composition.  Digestible fatty materials are glyceryl mono- or tri-stearate, or mono- or tri-oleate, stearic or oleic acid, diglycol stearate, or calcium or magnesium stearate.  Swelling agents are proteins such as gluten and casein, or cellulose ethers such as methyl cellulose, carboxymethyl cellulose, hydroxyethylcellulose, and their non-toxic metal salts (e.g. sodium). Waxy materials are cetyl alcohol, solid and liquid paraffinic hydrocarbons, or bees wax, carnauba wax, bay berry wax and palm wax. The compositions may be prepared either by melting and mixing the components or dissolving them in a suitable solvent, mixing, and evaporating the solvent.  The compositions may be employed in a liquid state as a coating composition, or granulated, optionally with fillers and lubricants, and then formed into tablets, or else the granules may be coated and coloured and filled into capsules, optionally as a mixture of granules having different release rates or containing different drugs.  Examples are given for the preparation of amphetamine-containing granules, which are tabletted and also encapsulated.
Patent GB-809408-A (GB)
Title: Production of uranium
Inventor: RUEHLE ARCHIE EDWIN
IPC: C22B60/02
Filed: 1957-10-28
Abstract: Metallic uranium is produced by the reduction of uranium tetrafluoride with a 3 to 5 per cent excess of magnesium in an autoclave, a surface film first being formed on the magnesium by heating it to not more than 625 DEG C. with between 0.5 and 2 per cent of either sodium bifluoride, uranyl fluoride, hydrated uranium tetrafluoride or uranium trioxide.  The surface film may be formed on the magnesium either before it is mixed with the uranium tetrafluoride or it may be formed in situ preferably by adding wafers which have been compressed from a mixture of the additive and magnesium to the charge in the autoclave.  To perform the reduction, the autoclave is lined with powdered dolomite or magnesium fluoride slag from a previous run, by inserting a hard rubber mandrell the diameter of which is about 1 inch less than that of the interior of the autoclave, filling the annular space with the powdered lining material and tamping.  The mandrell is then removed, the autoclave filled with reaction mixture, a top lining tamped in position the lid secured and the interior of the autoclave evacuated to a pressure of about 1.5 inches of mercury after which the autoclave is heated to about 660 DEG C. to initiate the reaction.  The molten uranium separates from the molten slag and when cool the two may be chipped apart to yield a massive ingot of uranium.
Patent GB-1432399-A (GB)
Title: Electromagnetic heating and sealing
IPC: H05B6/14
Filed: 1973-07-13
Abstract: 1432399 Seaming PROCTER & GAMBLE CO 13 July 1973 [17 July 1972] 33539/73 Heading B5K [Also in Divisions H3-H5] A method of sealing an endpiece 20 to a tubular body 10 by induction heating, where the tubular body has a longitudinal seam and comprises a layer of metallic material and a layer of electrically insulating thermoplastics material so that an electrical discontinuity occurs across the seam, comprises arranging the endpiece and body together in a jig 50, keeping a portion of the body away from the endpiece cool by a heatconductive protector 40 which fits the body closely along the seam, heating the metallic material layer of the body near the endpiece by an inductor coil 56 so that the thermoplastics material softens and joins, then allowing cooling to form the bond. The induction heating is performed at a frequency of from 200 kilohertz to 450 kilohertz and a magnetic focusing ring 32 may be present forming part of a mandrel 30 in the tube during the heating, this ring being adjacent the join between body and endpiece to improve the heat distribution and made of a ferrite of magnetic material of high permeability. The part 40 conducts heat away from those parts which are not required to be heated and electromagnetically shields them and is preferably of aluminium. The jig and mandrel are thermally insulating and non-stick, and are of P.T.F.E. The endpiece is of polyethylene but, where it is required to supply a barrier to oxygen and water vapour, may have an insert including aluminium. This insert may be joined to the endpiece at the same time as the tube is sealed to it.
Patent GB-929400-A (GB)
Title: Process for the manufacture of triphenyl tin chloride
IPC: C07F7/22
Filed: 1960-09-29
Abstract: Triphenyl tin chloride is prepared by reacting anhydrous tetraphenyl tin with tin tetrachloride in the molar ratio of approximately 3:1 at a temperature below 225 DEG C. in an organic solvent inert to the reactants and in which the triphenyl tin chloride formed is dissolved at the reaction temperature while the tetraphenyl tin remains practically undissolved, and the triphenyl tin chloride is isolated at the end of the reaction by crystallisation from the solution obtained by separating the unreacted tetraphenyl tin.  Any water present in the tetraphenyl tin may be removed prior to the reaction by azeotropic distillation.  Solvents specified include benzene, toluene, xylene, chlorobenzene, ethylene chloride, trichlorethylene, chloroform, carbon tetrachloride, hexane, heptane, octane, decane, dodecane, cyclohexane, methyl cyclohexane, hexachlorocyclohexane, n-dibutyl ether, tetrahydrofuran, commercial hydrocarbon mixtures and mixtures thereof.  The insoluble tetraphenyl tin may be removed by filtration, combined with the mother liquor from the crystallisation and added to the starting products of a new batch for renewed conversion into triphenyl tin chloride.
Patent GB-1009683-A (GB)
Title: A high performance solid explosive
IPC: C06C7/00
Filed: 1964-08-17
Abstract: A solid explosive composition comprises a high melting component consisting of hexogen, octogen, or nitropenta, and a lower melting component consisting of a mixture by weight of 70 to 90% trinitrobenzene and 30 to 10% trinitrotoluene or of 20 to 80% trinitrobenzene and 80 to 20% tetryl.  The high melting component may comprise 50 to 80% by weight of the composition when a vacuum casting process is used or 90 to 98% when a pressing process is used, for example pressing in a heated evacuated mould or in a mould surrounded by a movable jacket comprising hot and cold zones.
Patent GB-799514-A (GB)
Title: Improvements in or relating to electronic counting devices
IPC: H03K29/00
Filed: 1955-11-23
Abstract: 799,514. Electronic counting-apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 23, 1955 [Nov. 26, 1954], No. 33591/55. Class 106 (1). In an electronic counting stage for use in a computer in which trains of pulses applied to a counting discharge tube (e.g. a gas-filled tube or C.R.T.) cause the discharge path therein to be displaced step by step, the counting tube is connected to a similar reading-out tube whose discharge path is displaced through a number of steps equal to the number stored in the counting tube by pulses forming at least part of a train of reading-out pulses, the reading-out tube emitting a pulse at each step taken and being subsequently zeroized. As shown, one decade stage of a multi-stage counting device or accumulator comprises counting tube 2 and read-out tube 3 each comprising a C.R.T. of a type in which the beam has ten stable positions and is stepped along by pulses applied to one deflection plate the potential on the second deflection plate being reduced in corresponding steps. A deflection plate of tube 2 receives positive pulses to be counted and carry pulses, at terminals 6, 61 respectively, via double diode 7, and the corresponding potential reductions are applied through cathode follower 1 to the anode of diode 8 whose cathode is connected to the second deflection plate of tube 3. For read-out, a train of nine positive pulses is applied from 19 to tube 3 and steps the beam only until it reaches the same position as that in tube 2, any further steps being prevented by the conduction of diode 8. The potential reduction produced by each step is applied through cathode follower 9 to RC differentiating circuit to produce negative-going pulses which trigger monostable flip-flop circuit 4, 5 through diode 12. The flipflop produces square-shaped delayed pulses at output 24 corresponding in number to the count registered on tube 2. The time constants of the flip-flops in the different decades are so chosen that the different trains of output pulses do not coincide. The read-out pulses for all decades may be obtained from a multivibrator (Fig. 2, not shown) controlled by a flip-flop triggered by a read-out control pulse; after the ninth readout pulse, a negative quenching or zeroizing pulse, comprising the differentiated output from this flip-flop, is applied from 18 to the first control grid of tube 3. When a counting tube such as 2 receives ten pulses, a pulse from electrode 22 triggers flip-flop 20, 21 whose outputs return the tube 2 to the zero condition and supply a carry pulse via 23 to the next higher decade.
Patent GB-952700-A (GB)
Title: Thread cutting device for winding frames
IPC: H03G9/24
Filed: 1962-08-31
Abstract: 952,700. Thread severing arrangements for winding machines. NEUMUNSTERSCHE MASCHINEN - UND APPARATEBAU G.m.b.H., NEUMAG. Aug. 31,1962 [Oct.19, 1961] No. 33605/62. Heading DID. When sufficient yarn has been wound on package 5, Fig. 1, the yarn is transferred in the form of a loop by hand over a cutting device 16 and introduced between a fresh bobbin 5<SP>1</SP> and its driving drum 4<SP>1</SP>. The cutting device 6 comprises an arm 10 that holds the yarn 2 off the knife 7 until the tension in the yarn length extending between the drums 5 and 5<SP>1</SP> is sufficient to cause the arm 10 to pivot downwardly against the effect of a spring 11 and so expose the knife 7 to cut said tensioned yarn length.
Patent GB-1065558-A (GB)
Title: Chemical analysis
IPC: G01N30/62
Filed: 1964-08-18
Abstract: 1,065,558. Measuring electrically. ESSO RESEARCH & ENGINEERING CO. Aug.18, 1964 [Sept. 23, 1963], No. 33722/64. Heading G1N. A component of a fluid is detected and analysed by passing it over the surface of a vibrating crystal, 1, (e.g. a Piezo-electric crystal) having a chemical coating which causes the component to undergo a chemical reaction at the coating, the heat of reaction or a change in the mass of the coating caused by the reaction giving rise to a change in the crystal frequency, which change is detected. Since the chemical reaction and consequent change of mass of the coating are dependent upon temperature, a nominally non-temperature sensitive crystal may be made to vary in frequency with variation in temperature by virtue of the coating. The coating may be a substance which itself reacts with the component, or it may be a catalyst causing two or more components of the fluid to react together (e.g. H 2  and O 2 ). The frequency of the coated crystal 1, which is inherently temperature sensitive is compared with that of a second crystal 2, having an inert coating and being situated in the same stream of gas, and the difference frequency, F 1 -F 2 , indicates the proportion and/  or nature of the component. Alternatively, the changed frequency of a crystal which is inherently non-temperature sensitive, but which has a temperature sensitive coating as referred to above, is compared with its initial frequency, or may be made equal to the frequency of a similar coated crystal which does not contact the fluid, by varying the temperature of one or both crystals by external means, the difference in temperatures of the two crystals then being noted. A method of temperature cycling is described to avoid hysteresis errors whereby changes in chemical reaction lag behind temperature changes.
Patent GB-1131644-A (GB)
Title: Tubular dispensing device for an aerosol dispensing container
IPC: A61M15/00
Filed: 1966-07-27
Abstract: 1,131,644. Pressurized dispensing containers. BOEHRINGER INGELHEIM G.m.b.H. July 17, 1966 [July 29, 1965], No. 33737/66. Heading F1R. A tubular mouthpiece has pins which are slidable and pivotable in grooves in a valve operating-head piece secured to the valve of a aerosol dispensing container so that the mouthpiece is movable between an inoperative position in which it surrounds the headpiece and prevents actuation of the valve, and an operative position in which it projects from the headpiece in alignment with an outlet in the headpiece.
Patent GB-1135081-A (GB)
Title: Vehicle loading installations
Inventor: BELL HUGH GRAHAM
IPC: B65G67/00
Filed: 1965-08-06
Abstract: 1,135,081. Track propulsion systems. HYDRA - MUSCLE HYDRAULICS Ltd. 8 Aug., 1966 [6 Aug., 1965], No. 33755/65. Heading B7L. [Also in Division B8] Rail wagons 1 are loaded from a shoot 3 raisable by a jack 4. Load height and wagon detectors are provided so that the shoot 3 is lowered into a stationary wagon to prevent degradation of the material and then is raised in steps as the material height detector is operated until it is fully raised when the wagon material engages a further height detector to start the wagon advancing devices to move the wagon until the shoot clears the material pile and can again be lowered. A wagon detector is also provided and when this clears the rear of a wagon it over-rides the other detectprs, raises the shoot 3 into line with a by-pass shoot, and advances the wagon at increased speed until the shoot can be lowered into the next wagon. The advancing device comprises an endless rubber track 10 driven by two hydraulic motors 9 or in a modified form, Fig. 6, clusters of wheels 35, 36, 41, 42 mounted on axles supported on arms 38, 39, 44, 45, pivotable on a vertical axle 40 mounted in a fixed framework 31-33 and resiliently urged towards the wagon. A motor 46 drives the central cluster axle 47 and by chain drives 50, 51, 55, 58 the wheel axles.
Patent GB-175455-A (GB)
Title: Improvements relating to electrically controlled signal operating mechanism for railways and the like
IPC: B61L5/16
Filed: 1920-12-01
Abstract: 175,455. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., (Compagnie GÚnÚrale de Signalisation). Dec. 1, 1920. Visual outdoor signals; slots, reversers, and like apparatus.-The signal arm 12 is driven by a motor 4 through a worm and toothed gearing and a clutch by which the wheel 5 is locked to the clutch plate 18. The plate 18 carries a spindle fixed to a short arm 28 on one side of the plate and to a long arm 29 on the other side. The arm 28 engages one of several pins 13, 15 on the disc 5, and if the electro-magnetic clutch is deenergized, is rocked as the pin passes by it; if the magnet is energized, the inner end of the arm 29 is held by the link 34 and the clutch plate is carried round. In the form shown the field magnets of the motor 4 control the armature lever 39 pivoted to the rocker 32, which presses the link 34 into engagement with a recess in the arm 29. The lever 39 is shaped to engage a roller 48 and is moved longitudinally as it rocked to and from the magnet poles. The arm 36 on the rocker 32 engages a slot in the clutch plate to lock the signal at danger. The roller 50 on the lever 39 closes the motor armature circuit at contacts 51. The whole mechanism is carried by a base 1 which is hinged in a casing, so as to expose the mechanism readily for inspection. A clutch 19 is provided between the shaft 11 and that of the signal arm.