baber/WOPTO huggingface dataset:
Patent GB-1385806-A (GB)
Title: Purification of beta-lactones
IPC: C08G63/08
Filed: 1972-12-14
Abstract: 1385806 Purification of α,α-disubstituted-#- propiolactones EASTMAN KODAK CO 14 Dec 1972 [16 Dec 1971] 57877/72 Heading C2C Impure α,α-disubstituted-#-propiolactones of formula where R and R<SP>1</SP> are straight- or branched-chain C 1  to C 10  alkyl groups, or substituted or unsubstituted C 6  to C 10  cyclic hydrocarbon groups or where R and R<SP>1</SP> join to form a ring of from 6 to 10 carbon atoms, are purified by treating with an aluminium trialkyl of formula AlR<SP>2</SP> 3  where R<SP>2</SP> is a straight- or branched-chain C 1  to C 8  alkyl group, in an inert atmosphere, and subsequently separating the purified lactone from the resulting mixture by distillation under reduced pressure.
Patent GB-1275806-A (GB)
Title: Alkoxyimino compounds
Filed: 1969-07-23
Abstract: 1275806 Alkoxyimino compounds VELSICOL CHEMICAL CORP 23 July 1969 [24 July 1968 29 Aug 1968 (2) 6 Sept 1968 18 Sept 1968 (2) 7 Oct 1968 (2) 13 Feb 1969] 57988/71 Divided out of 1275805 Heading C2C Compounds of formula wherein Hal is halogen, R<SP>1</SP> and R<SP>2</SP> are alkyl, n is 0 or 1, X<SP>4</SP> is oxygen or sulphur, Z<SP>2</SP> is hydrogen, alkyl, alkenyl, or a group of formula in which A is alkyl, alkenyl, alkoxy, alkylthio, halogen, nitro, alkylsulphoxide, alkylsulphone or dialkylamino, q is 0 to 5 and p is 0 to 3, provided that n is 0 when Z<SP>2</SP> is hydrogen, are prepared by reaction of a compound of formula with a diazoalkane.
Patent GB-1194750-A (GB)
Title: Improvements in "Graded Insulated Cable"
IPC: H01B7/02
Filed: 1967-12-22
Abstract: 1,194,750. Cables. GENERAL ELECTRIC CO. 22 Dec., 1967 [29 Dec., 1966], No. 58270/67. Heading H1A. An electric cable has at least two insulating layers of cross-linked thermosetting polyethylenic material, the innermost incorporating 100 to 125 parts of alkoxy silane treated titanium dioxide filler per 100 of polymer and the outermost layer containing no titanium dioxide filler. The filler content of intermediate layers if any decreases outwardly. Such a cable has a specific inductive capacitance not greater than about 4 and a power factor not greater than about 1%. The outer insulating layer, while lacking filler quantities of titanium dioxide, may contain pigmenting amounts thereof, or other colouring pigments or dyes, e.g. carbon black. The outer insulating layer may contain a filler other than titanium dioxide, e.g. aluminium silicate or oxide, calcium or magnesium silicate or mixtures thereof, which fillers may also have been treated with an alkoxysilane. The polyethylenic material may be polyethylene, a copolymer of ethylene and other monomers or a blend of polyethylene with another polymer. The cross-linking agent may be a peroxide, e.g. dicumyl peroxide. As shown, stranded conductor has semi-conducting tape applied around it, then inner insulating layer 16 containing titanium dioxide filler and outer insulating layer 18 without filler. The cable is completed by second semi-conducting tape 20, copper shield 22 and an outer jacket (not shown).
Patent GB-1389658-A (GB)
Title: Ferry vessels
IPC: B63B27/14
Filed: 1970-12-10
Abstract: 1389658 Ferry vessels CARGOSPEED EQUIPMENT Ltd and J G BROWN 1 March 1972 [10 Feb 1970] 58649/70 Heading B7A A ferry vessel has an upper deck 10 and a lower deck 11 each having a hingeable ramp section 12, 14 respectively. The sections can be lowered and raised respectively, for example by means of hydraulic jacks 21 and cables 16, to form a complete ramp between the decks 10 and 11. In use, vehicles are run down the ramp on to deck 11 until the penultimate vehicle rests on section 14. The sections 12, 14 are now returned to their positions flush with decks 10, 11 and the penultimate vehicle is reversed under section 12. The sections are now operated to form the ramp again and the last vehicle is run on to section 14 where it remains when the sections are again closed. A hinged upped deck panel 18 may be provided which is positioned above section 14 and connected to it by link 20 so as to move in unison therewith.
Patent GB-1172300-A (GB)
Title: Improvements relating to Internal Combustion Engines
Inventor: REISACHER JOSEF
IPC: F02F3/24
Filed: 1967-12-28
Abstract: 1,172,300. Combustion chambers. DAIMLER-BENZ A. G. Dec. 28, 1967, No. 58800/67. Heading F1B. In a spark ignition I. C. engine with rotation of the fresh charge of fuel-air mixture or air about the cylinder axis which causes the residual gas to collect near the cylinder axis, the residual gas is introduced into a chamber, e. g. a chamber 23 in the piston 12, towards the end of the compression stroke and the fresh charge is displaced into one or more combustion chambers 16, 17. The combustion chambers are disposed eccentrically to the cylinder axis and are substantially separated in the T. D. C. position of the piston from the residual gas chamber 23 by a wall 24, 25 surrounding the chamber. The axes of the overhead valves may be inclined. The charge rotation may be produced by guidance in the induction passage or port. Fuel may be injected directly into the combustion chambers.
Patent GB-1412786-A (GB)
Title: Separation of normal and non-normal hydrocarbons by adsorption
IPC: C07C9/22
Filed: 1972-12-21
Abstract: 1412786 Separating hydrocarbons by adsorption UNION CARBIDE CORP 21 Dec 1972 [22 Dec 1971] 59046/72 Heading C5E Normal paraffins are separated from non- normal hydrocarbons in a feedstock 10 by passing the vaporized feedstock through valve 14 into a fixed bed 20 of 5  zeolite containing a non-sorbable purge gas so as to force the non- sorbable purge gas from the bed 20 through valve 24 and valve 62 into the bed 40 which is on a cocurrent purge step whilst the bed 60 is on a countercurrent desorption step; the passage of feedstock into the bed 20 is terminated before the stoichiometric point of the mass transfer zone of the lowest molecular weight normal paraffin to be isolated has moved through 85% of the length of the bed, non-normal hydrocarbons are purged from the bed 20 void space through valve 17 and line 21 by a cocurrent stream of a non-sorbable purge gas from valve 61, and at least a portion of the adsorbed normal paraffins are desorbed from the bed 20 through valve 41 and line 44 by a countercurrent of purge gas from valve 28. The adsorption and purge steps are carried out isobarically and isothermally. If the feed contains a smaller proportion of normal paraffins then, following the displacement of non-sorbable purge gas from the bed 20 during the adsorption step, a further quantity of vaporized feed is passed through the bed and the non-adsorbed non-normal hydrocarbons passed out of the bed through valve 17. Fig. 2 shows a modification in which the vaporized feed from valve 74 displaces non-sorbable purge gas through valve 76 line 77 and thence into adsorber 95 as countercurrent desorption gas to desorb normal hydrocarbons via valve 79, the valve 76 is then closed and non-normal effluent passed through valve 89 into conduit 90, valve 74 is then closed and valve 96 opened to purge non-adsorbed normal hydrocarbons from the bed 75 with one bed volume of purge gas from line 88, valve 76 is then opened and adsorbed normal paraffins desorbed from the bed 75 by a countercurrent of purge gas from valve 96. The process can be used to treat feedstocks boiling in the gasoline or kerosine range and containing 4-13 carbon atoms and is carried out at 350-750 F. using N 2 , H 2 , He or CH 4  as the purge gas. Suitable adsorbents are zeolite A in the sodium form or partly exchanged with calcium and/or magnesium, zeolite T, chabazite or erionite.
Patent GB-1374109-A (GB)
Title: Hoppertype separating and classifying device
IPC: B07B1/04
Filed: 1971-12-21
Abstract: 1374109 Screening apparatus for separating liquid from a slurry BAUER BROS CO 21 Dec 1971 [21 Dec 1970] 59345/71 Heading B1D Liquid is separated from a slurry of solid (e.g. fibrous particles) in liquid by causing the slurry to flow in sheet-form down a slope formed by horizontally-disposed thin bar segments with apertures between successive segments, the lateral extremities of the segments being convergent in a downward sense. Slurry is supplied through inlet 25 to the chamber 24 of the apparatus shown, wherein the slurry weirs over the lip 18 of rectangular apron 17 and flows in sheets down the four sloping plate-units 11 of hopper 10 which comprise horizontal wires 13 mounted on rods 14. As the slurry flows down the plate units 11, liquid passes through the slots between the wires and flows through chamber 32 to discharge conduit 34. Thickened slurry flows off 'the lowest wires to discharge chute 35. The wires are preferably triangular in cross-section, and have their apex portions mounted on rods 14. Plate units 11 are preferably inclined to the vertical at an angle from 18 to 35. Fig. 4 (not shown) illustrates a plate unit comprising wires curved in wave-shaped formation.' The separation of solids from sewage is referred to. Separation is assisted by the conversion of the flow from laminar to turbulent near the lower end of the hopper.
Patent GB-1371068-A (GB)
Title: Ultrapure alumina ceramics formed by coprecipitation
IPC: C04B35/10
Filed: 1971-12-22
Abstract: 1371068 Ultrapure alumina MINNESOTA MINING & MFG CO 22 Dec 1971 [23 Dec 1970] 59839/71 Heading C1A A green body comprising alpha alumina and intrinsic impurities by hydrolysing distilled aluminium isopropoxide with 0À01 to 0À1% by wt. on an oxide basis of magnesium isopropoxide to precipitate amorphous hydrated alumina containing 0À01 to 0À1% by wt. of magnesia which is calcined at at least 1100‹ C. and then ground, avoiding contamination using up to 2% by wt. of a substantially ash-free grinding aid to give a dry ground powdered alpha-alumina of average particle size 0À5 to 1À0 microns and further mixing with not more than 10% of substantially ash-free temporary organic binder. Specified organic binders are microcrystalline wax, polyvinyl alcohol, polyvinylpyrrolidone or a water dispersed acrylate or methacrylate.
Patent GB-1413310-A (GB)
Title: Process and device for forming two superimposed sections of  film
IPC: B65B11/58
Filed: 1972-12-29
Abstract: 1413310 Cutting and registering sheets; wrapping SIG SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT 29 Dec 1972 [31 Dec 1971] 60167/72 Headings B8R and B8C A method of superimposing two films 2 and 3 with their leading and trailing edges offset relative to one another comprises cutting the leading edges of two webs so that they are level, gripping one of the webs, 3, with a slide 16 and moving it backwards to offset the leading edges by an amount a, Fig. 3, gripping the leading edges with a clamp 5, Fig. 4, drawing off the required length of one of the films 2, moving the web 3 forwards by means of the slide 16 to form a sag 32 downstream of the cutting device 4 and simultaneously cutting the films from the webs. A further clamp 25 may be used to grip the sheet downstream of the cutter after the required length has been drawn off by the clamp 5. The foils may be used to wrap a packet of biscuits 1 (see Fig. 1, not shown).
Patent GB-1334389-A (GB)
Title: Hoses
Inventor: CHAMPLEBOUX J
IPC: F16L11/08
Filed: 1970-12-18
Abstract: 1334389 Reinforced hoses PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER-COLOMBES 18 Dec 1970 [19 Dec 1969] 60338/70 Heading F2P A hose comprises at least two reinforcing layers 12, 13 of helically extending metal cables separated by a layer of rubber 4 the turns of the two layers being laid in opposite hands and making an angle of 70 degrees or more with the axis of the hose. The term rubber includes any suitable supple and elastic material. Additional layers 14, 15 of cables may be included to form two assemblies of layers 2, 3 the cables in the layers of each assembly being either crossed or parallel. In one embodiment, shown, a further helically wound wire 5 is included between the assemblies and in another embodiment (Fig. 1d, not shown) laminated rings (6) are positioned in the layer 4. The reinforcing cables are preferably constituted by three strands, comprising six steel wires each, helically wound around a central wire core with a wire wound around the assembly in a helix of longer and opposite pitch. To facilitate bending of the hose, bellow portions (B), without rigidifying elements 5, (6) may be included (Figs. 3, 4, not shown). The reinforcing layers may be formed by helically winding rubber strips including cables embedded parallel to the axis of the strip into a helix on a mandrel, or from longitudinal rubber strips with transverse cables embedded therein at an angle to the longitudinal axis of the strip equal to the required helix angle of the reinforcement.
Patent GB-1346790-A (GB)
Title: Plasma jet generators
IPC: H05H1/44
Filed: 1971-12-29
Abstract: 1346790 Welding by fusion RIKAGAKU KENKYUSHO 29 Dec 1971 [25 Dec 1970 17 Sept 1971] 60549/71 Heading B3R [Also in Divisions H3-H5] A plasma generator comprises at least two plasma torches A, B secured to a common plasma nozzle C. The nozzle C has inlets 15, 16 for the plasma torches A, B and a common plasma outlet 17. At least one torch, e.g. torch A is connected to the nozzle C by an insulating spacer 18 so that a stream of gas 20 may be supplied to the annular space defined between the insulator 18, a bushing 3 and the nozzle C. 9 Torch A comprises a rod cathode 1 and at least two concentric bushings 2, 3 whilst torch B comprises a rod cathode 9 and a bushing 11  formed with an arc throttle orifice 10. The negative terminal of a high frequency auxiliary power supply 21 is connected via a switch 22 to the cathode 1 of torch A and the positive terminal is connected to the bushing 2 of the torch A. The negative terminal of the main high frequency power supply 23 is connected to cathode 9 of torch B and the positive terminal is connected to bushing 2 of torch A and to the bushing 11 of torch B via a switch 24. In operation gas streams 7 and 8 are supplied to torch A and auxiliary power supply 21 is connected to torch A by closing switch 22 to establish an auxiliary arc 25. Gas stream 13 is then supplied to torch B, switch 24 is closed to form an arc 26, and a plasma jet is formed which passes from arc throttle orifice 10 to the plasma nozzle C. The two plasma jets thus formed converge at intersection 11 whereupon switches 22, 24 are opened so that a "hairpin" shaped main arc is formed which extends from cathode 9 to bushing 2 and a plasma jet flame 28 is formed which extends from outlet 17 of the plasma nozzle C. A gas stream 20 is supplied to the annular space between torch A and nozzle C to prevent the hairpin arc from engaging the wall of inlet 15. In a modification, Fig. 2, not shown, torch B is altered in construction so that an active gas, e.g. air or oxygen may be used to form the plasma. Various modifications of the nozzle are disclosed. In Figs. 10 and 1 (not shown) three or four plasma torches supply a common nozzle provided with a single plasma outlet. The generator may work in the transferred arc made with the main arc extending between the work and one torch. Cutting, welding and coating are specified applications.
Patent GB-1362020-A (GB)
Title: Hydroplanes
IPC: B63G8/20
Filed: 1971-12-30
Abstract: 1362020 Submarine hydroplane stops FRANCE ARMED FORCES MINISTER OF 30 Dec 1971 [18 Jan 1971] 60654/71 Headings B7A and B7V A rotation limiting mechanism of a submarine hydroplane 9 comprises a first stop member 17 mounted on structure 15 of the submarine and a second stop member 16 located on rod 7 of hydraulic cylinder assembly 8 which controls the rotation of the hydroplane. The two stop members enage each other to limit the rotation of the hydroplane and the position of stop 17 is adjustable by screw 18 coupled to motor 19 so as to vary the amount of rotation of the hydroplane permitted by the stops. The orientation of the hydroplane is unchanged if stop 17 is adjusted with the two stops out of engagement.
Patent GB-1054896-A (GB)
IPC: F16F13/24
Filed: 1964-04-24
Abstract: 1,054,896. Hydraulic dampers. WESTLAND AIRCRAFT Ltd. April 7, 1965 [April 24, 1964], No. 17002/64. Heading F2S. A hydraulic damper, for rotor blade assemblies of aircraft, comprises a rigid cylindrical body 2 with an inner centrally-disposed web 3 having an inner bush 4 and which is closed at its ends by flexible wall elements 21, 22, the inner edges of the elements being secured to bell-shaped members 11, 14 carried by a first connector 10, which extends through a sleeve 6 slidable within the bore 5 of the bush 4, and the outer edges being clamped by bell-shaped outer wall extension members 16, 18, in grooves in the body 2, the outer wall member 18 being extended downwardly for connection to a second connector 20. A nut 13 clamps the inner edges of the members 11, 14 and the sleeve 6 against a shoulder 12 on the connector 10, a sealing ring 7 being accommodated in a groove 8 in the bore 5. Ports 26 are associated in diametric pairs 26, 26 mutually at right angles in the web 3 with flexible valve members 27, 28 disposed on opposite sides of the web 3 and retained by means of a rivet 29. Two further ports 30, 30 in the web are controlled by a needle valve and filler connection 33. In a modification, Fig. 4, not shown, the web 51 has ports 70, 70 controlled by a needle valve and filler connection 73 and two ports such as 68 each controlled by a one-way valve such as 69, the outer edges of the flexible wall elements 56, 57 being clamped in grooves in perimeter walls of the web 51 by means of a collar 62, a sleeve 63, and a locking ring 64. The flexible wall elements 56, 57 are connected to an outer cylindrical part 76, 77 which is carried by a connector member 75, the other connector member being connected to a pair of trunnions on the web, 51, the trunnions, not shown, projecting through slots in the outer cylinder 76, 77.
Patent GB-651666-A (GB)
Abstract: 651,666. Bobbins. TAYLOR, A. June 10, 1948. No. 15675. [Class 120(iii)] A bobbin of the type consisting of a hollow core and perforated end cheeks wherein the core is made up of four initially separate panels and the perforations in the end cheeks correspond in shape to the cross-section of the core, has an opposite two 3, 3 of the four panels provided with grooves or the like 6, of a width less than the thickness of the end cheeks 1, 1, the other two panels 4, 4 being plain in this respect, and an opposite two edges of the perforation 5 in each end cheek provided with tongues or projections 7 which are of a width less than the thickness of the cheek and engage in the grooves 6, the other two edges of the perforation being plain, and has at least one longitudinal edge of each of the four panels rabbeted or stepped as at 8 to receive a longitudinal edge 9 of an adjoining panel. The tongues 7 may extend right along the edges of the perforations and the grooves 6 may extend'right across the panels in which they are provided. Alternatively the tongues 7 may be of convex form and the grooves 6 of corresponding concave form and rabbets or steps may be provided on both of the longitudinal edges of each of the four panels so that the rabbets or steps of each panel engage with the rabbets or steps of the two adjacent panels.. Specification 595,083 is referred to.
Patent GB-697770-A (GB)
IPC: B27L11/00
Abstract: 697,770. Wood cutting. OTTERSLAND, P. N. Oct. 10, 1951, No. 23629/51. Class 145 (i). A rotary wood chipping machine of the type having a rotary chipper disc in which is fitted a number of knives, and an inclined trough for feeding the wood, usually in log form; is characterised in that the guide shoot is arranged at an angle of less than 45 degrees to the plane of the disc (preferably 30-40 degrees) and in that the axis of the disc is inclined to the horizontal (preferably 10-20 degrees). The disc 10 carries knives 20 and the chippings pass through slots 21 into the casing 14. The base plate 17 is held at an angle to the horizontal by the block 19. The guide shoot 25 is shown at an angle of 30 degrees to the plane of the disc. It is stated that the ends of the log are not splintered or smashed.
Patent GB-2002343-A (GB)
Title: Glass scoring apparatus
IPC: C03B33/10
Filed: 1978-08-03
Abstract: The apparatus comprises a cutting tool, means for applying a cutting load to the cutting tool when the tool engages a glass surface to be scored, and a damping member arranged to absorb energy developed by reaction forces opposing the cutting load when the tool is moved into contact with the glass. The damping member has a loss factor tan delta  which is high enough to prevent any substantial transient reduction in the cutting load.
Patent GB-2006046-A (GB)
Title: Method and apparatus for separating particulate pollutants from a stream of air or other gas
IPC: B01D45/10
Filed: 1978-09-14
Abstract: The stream of air or other gas which is to be cleaned of particles, e.g. liquid droplets, is conducted through one or more elements (4) each comprising parallel grids (4', 4'') formed of filamentous separating elements disposed at an angle of 15 DEG  to 40 DEG  to the flow direction of the stream. The velocity of the stream of air or other gas is arranged to be within the range of 10 m/s per second to 70 m/s per second. Collected particles are removed by troughs (5). Wetting liquid may be supplied to the surfaces of the element(s) or sprayed into the air or other gas to aid removal of solid particles by the element(s). <IMAGE>
Patent GB-2010347-A (GB)
Title: Forming a Sheet of Fibrous Material
IPC: D01G25/00
Filed: 1978-12-18
Abstract: An apparatus for forming a coherent and substantially uniform sheet of dry fibrous material, for example wood pulp, comprises a feed conveyor 1 arranged to receive and convey the fibrous material, a spreader 3, a collection conveyor, which in the embodiment illustrated is also the conveyor 1, positioned to receive and convey fibrous material discharged by the spreader and means, such as rolls 5, 6 and 62, 12, for consolidating the fibrous material received by the collection conveyor. The spreader 3 has a first member 26 which comprises an assembly of blades 34 extending across the feed conveyor 1 and rotatable so that the blades 34 at their lowest position 24 are closely adjacent to the feed conveyor and rotate towards the fibrous material on the feed conveyor to lift the fibrous material off the feed conveyor. The spreader 3 also has a second member, which in the embodiment illustrated is a deflector plate 37, positioned so that the fibrous material lifted off the feed conveyor 1 by the first member 26 is subjected to a fibre-separating action between the first and second members before being discharged from the spreader 3. <IMAGE>
Patent GB-2011485-A (GB)
Title: Process for Dyeing Cellulose Fibres or Mixtures Thereof with Synthetic Fibres with Vat Dyes
IPC: D06P1/22
Filed: 1978-12-29
Abstract: A process for exhaust dyeing cellulose fibres or mixtures thereof with synthetic fibres, preferably polyester fibres, comprises introducing into a tank the fibres in rope form in conjunction with a hot aqueous solution containing at least one vat dyestuff in reduced form, sodium hydroxide, sodium dithionite and, optionally, an electrolyte, treating the fibres with the solution for a period of from 5 seconds to 10 minutes, preferably from 1 to 5 minutes, at a temperature of from 60 DEG  to 100 DEG , preferably from 80 DEG  to 98 DEG C, with exclusion of atmospheric oxygen, and subsequently subjecting the fibres to a reoxidation treatment to form the water-insoluble vat dyestuff, and to an after-treatment. The process avoids such disadvantages as atmospheric oxidation problems, foulard roll staining and insufficient dyestuff penetration.