baber/WOPTO huggingface dataset:
Patent GB-1535330-A (GB)
Title: Method and furnace for combusting carbonaceous fuel
IPC: F23C99/00
Filed: 1975-12-31
Abstract: During the combustion of carbonaceous fuels at temperatures above 1800 DEG C in the presence of an at least stoichiometric quantity of air, major quantities of nitrogen oxides are formed. In order largely to avoid the formation of nitrogen oxides, the combustion is carried out in two stages, as follows: in the first stage (612), thermal combustion of a carbonaceous fuel (620) is carried out with a less than stoichiometric quantity of air (652). The exit gas from the first phase (612) is mixed with additional air (662) to form a mixture whose adiabatic flame temperature is above the auto-ignition temperature of the mixture. This mixture is burned in the presence of a catalyst (634) at a temperature above the auto-ignition temperature but below a temperature which would lead to a noticeable formation of nitrogen oxides. <IMAGE>
Patent GB-1214972-A (GB)
Title: Improvements in or relating to the labelling of articles
Inventor: MINASY ARTHUR JOHN
IPC: E05B73/00
Filed: 1967-11-24
Abstract: 1,214,972. Seals. A. J. MINASY. 24 Nov., 1967 [7 Dec., 1966], No. 53505/67. Heading B6P. [Also in Divisions B8 and F2] A label 24 is secured to a sheet 25, for example part of a garment, by a tack 44 the end 46 of which is bent over to engage a button 34. The button is of such thickness that it can subsequently be cut at right angles to the axis, together with the stem of the tack, to release the label. The button is preferably of high density low-friction plastics with an enlarged flange 30, a reduced portion 32, and a recess 36. The arrangement will be used to secure in place a label having an embedded electronic circuit which operates an alarm if merchandise bearing the label is removed from the premises with the label in place.
Patent GB-1406303-A (GB)
Title: Crankcase ventilator valve
IPC: F01M13/02
Filed: 1972-11-22
Abstract: 1406303 Regulating valve; ventilating crank-cases GENERAL MOTORS-HOLDEN'S PTY Ltd 22 Nov 1972 [1 Dec 1971] 53863/72 Heading F1B [ Also in Division F2] A gas regulating valve for use with an I.C. engine comprises a housing 2 containing a gas compartment 11 with which communicates an inlet passage 3 and an outlet passage 4 for connection to the crank-case and induction manifold respectively of the engine there being a flexible diaphragm valve member 5 connected to the housing to co-operate with a valve seat 7 to permit or prevent communication between passages 3 and 4 in response to the pressures therein. The regulating valve housing forms part of a base member for an air filter, an induction passage 22 being formed in the housing to connect to the engine induction manifold. Above the valve member 5 is an air compartment 12 which may be connected to atmosphere via passages 13 and 14. The valve member may be biased away from the valve seat by its natural resilience or by a coil spring (26), Fig.5 (not shown).
Patent GB-1241297-A (GB)
Title: Conducting thermoplastics articles
Inventor: REDDISH WILSON
IPC: H01B1/24
Filed: 1967-11-28
Abstract: 1,241,297. Electrically conductive thermoplastics. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 Nov., 1968 [28 Nov., 1967], No. 54123/67. Heading C3P. Electrically conductive articles are made from thermoplastics compositions comprising a sintered matrix of coated thermoplastics granules, each of which granules is at least partially coated with a layer of thermoplastics material containing as filler sufficient of a conducting powder to render the layer conducting. Specified plastics are propylene polymers and copolymers, polyethylene, poly-4-methylpentene-1 and polyvinyl chloride. Specified fillers are carbon blacks, graphite, metal powders and doped silicon. The coated particles may be obtained by double extrusion wherein a stream of filled plastic is injected into a stream of unfilled plastic before the latter is extruded. In an example, acetylene black filled polyethylene is extruded into a stream of polypropylene which is subsequently extruded and chopped into granules which may be moulded.
Patent GB-543249-A (GB)
IPC: E04G21/12
Abstract: 543,249. Wire strainers. GUERITTE, A. T. J. Aug. 13, 1940, No. 12955. [Class 45] A wire tensioning device, suitable for tensioning reinforcing members in concrete structures is provided with means for tensioning and fixing in a plurality of stages by hydraulic pressure, the wire strands extending along peripheral slots in the device and being secured to a part which can be extended by hydraulic pressure to tension the wires. In the construction shown the device comprises a body 12, 26 on which slides a fluid-tight sleeve or plunger 8 normally retracted by a spring 13. The end 36 of the device is placed against a block 67 and wires 64 passing through a concrete mould (not shown) to the left of Fig. 1, pass through longitudinal grooves 61, 62 in the body 26 and are anchored by wedges 65 in grooves 63 in the sleeve or plunger 8, so that when pressure liquid is admitted by a pipe 54 the plunger is forced out and the wires are tensioned. In order to secure the wires in the block 67 this block is lined with mortar, and when pressure liquid is admitted through a pipe 59 to an annular chamber 57 a second plunger 30 is forced to the left against a conical wedge 69 which presses the wires 64 into the layer of mortar in the block 67. When the mortar sets the torsioned wires are secured to the block, and the liquid is allowed to escape through the pipes 54, 59 so that the plungers are retracted by their return springs 13, 39 to the positions shown in Fig. 1.
Patent GB-1165368-A (GB)
Title: Control Arrangement for Knitting Machines
Inventor: IRMSCHER HELMUT
IPC: G05B19/08
Filed: 1966-12-05
Abstract: 1,165,368. Knitting machines. FAHRRADWERKE ELITE-DIAMANT VEB. 5 Dec., 1966, No. 54420/66. Heading D1C. [Also in Division G3] A programme control arrangement for a knitting machine comprises a first switch means coupled to a cyclically operative part of the machine selecting different groups of first conductors e.g. 37-42 in sequence and a second switch means e.g. 1-6 also coupled to the machine selecting one of the first conductors within the group, and a plurality of second conductors e.g. 44-58 connected to a plurality of control devices 59-73 with means e.g. a diode 43 electrically interconnecting selected first and second conductors. First and second switch means 1-24 supply current to the first groups of conductors 25-42 in a repetitive sequence, and the group of second conductors 44-58 insulated and angularly arranged from the first group are each connected to an electromagnet 59-73 controlling the movement of a reciprocatable machine slide. The groups of switches e.g. 7-12 are mechanically coupled and are operated by a relay energized by a photo-electric cell when a transparent area on a drum driven by the machine permits light from a lamp to pass. Similarly switches 13-18 and 19-24 are closed in sequence. The contacts 1-6 are closed in succession by a relay chain forming a ring counter operated at the completion of each operation of the machine e.g. when a slide reverses its movement.
Patent GB-1348015-A (GB)
Title: Circuit structure wafer member and method of fabrication thereof
IPC: H01L23/538
Filed: 1971-11-23
Abstract: 1348015 Anodizing aluminium wafers BUNKER RAMO CORP 23 Nov 1971 [11 Dec 1970] 54435/71 Heading C7B [Also in Division H1] Portions of a wrought aluminium wafer are anodized using a photo-resist applied to both sides of the wafer. The wafers are bolted or clamped to an anode bus in an electrolyte of 12 per cent by wt or less dilute sulphuric acid and approximately 1% oxalic acid. A lead cathode having 20 times the area of the anode is provided. The electrolyte is maintained at 20‹ F to 50‹ F and agitated by pumping, mechanical stirring or air agitation. The current density is 30 to 40 amps. per sq. ft. at the anode or more if an alternating current is super-imposed. The anodization may be taken fully or partially through the wafer. Both sides of the wafer may then be cleaned chemically or mechanically.
Patent GB-1406553-A (GB)
Title: Grease thickener
IPC: C10N50/10
Filed: 1973-11-23
Abstract: 1406553 Polyureas BRITISH PETROLEUM CO Ltd 23 Nov 1973 [11 Dec 1972] 54460/73 Heading C3R [Also in Division C5] A polymer is prepared by reacting a monoamino, a diamino and a diisocyanate component optionally in a lubricating oil at a temperature of 20 to 150‹ C. wherein (a) the monoamino component comprises a mixture of at least two members selected from different groups of general formulae R<SP>1</SP>-NH 2  : R<SP>2</SP>-NH 2  and R<SP>3</SP>-O-R<SP>4</SP>-NH 2  wherein R<SP>1</SP> is a C 12-24  aliphatic radical, R<SP>2</SP> is an aromatic radical, R<SP>3</SP> is a C 2-10  aliphatic radical and R<SP>4</SP> is a C 2-4  aliphatic radical, (b) the diamino component comprises a dioxaalkane diamine of the general formula H 2 N-R<SP>5</SP>-O-R<SP>6</SP>-O-R<SP>7</SP>-NH 2  wherein R<SP>5</SP> and R<SP>7</SP> are C 2-4  divalent aliphatic radicals and R<SP>6</SP> is a C 2-10  divalent aliphatic radical and (c) the diisocyanate component comprises an aromatic diisocyanate. In a typical example a mixture is prepared from 4,9-dioxadodecane- 1,12-diamine, a mixture of C 18-24  primary amines, p-toluidine and a mixed-base solvent raffinate and to the mixture is added toluene diisocyanate, followed after reaction by a corrosion inhibitor, an oxidation inhibitor, a metal deactivator and further base oil. The polyurea serves as a thickener in the resulting grease.
Patent GB-549164-A (GB)
Abstract: 549,164. Gas igniting devices. JACKSON, J. M. Aug. 20, 1941, No. 10615. [Class 75 (iii)] An electric gas-igniting device comprises a dry cell unit 1 arranged in a cylindrical casing 2 fitted with a tubular extension 4 carrying a slotted lantern 6 enclosing a resistance-filament 10. A spring 14 abutting against a plug 15 at the bottom of the casing 2 presses the unit 1 upwardly so that its central terminal 13 engages an insulated rod 11 in the extension 4 in electrical connection with one end of the filament 10. When a spring switch arm 18 on the casing 2 is pressed so that its end 19 passes through an aperture 17 in the casing to make contact with a bared portion of the metal wall of the cell the circuit to the filament 10 is completed through the extension 4 and lantern 6.
Patent GB-1450207-A (GB)
Title: Welding of designs on synthetic plastics material
IPC: B44C1/18
Filed: 1973-11-27
Abstract: 1450207 Heat-welding of designs; adjustable dies DIMENSION WELD INTERNATIONAL CORP 27 Nov 1973 [6 Dec 1972] 54957/73 Heading B6C Printed designs on synthetic plastics materials, e.g. polyvinyl chloride sheets, are heat-welded using a heated die wherein the designs on the die are adjustably mounted so that they can be brought into registry with the printed designs before heat-welding. The composite die comprises a carrier member 2, Fig. 3, and a plurality of individual die members 6 each carrying a design 7 and registration marks 6a. The position of a die member 6 with respect to the carrier 2 may be adjusted so that the marks 6a are registered with marks on the sheet which may have been subject to dimensional distortion during storage or printing. The releasable connection between die members 6 and carrier 2 may be double-sided adhesive tape (11), Fig. 3 (not shown), or any adhesive which allows the die members to be repositioned.
Patent GB-1137370-A (GB)
Title: Improvements in or relatinga to torque converters
IPC: F16H45/00
Filed: 1966-12-08
Abstract: 1,137,370. Clutch control. SOC. ANON. ANDRE CITROEN. 8 Dec., 1966 [17 Dec., 1965], No. 55080/66. Headings F2C and F2L. In an arrangement comprising a friction clutch in series behind a hydrodynamic torque converter in which the clutch is engaged hydraulically when liquid is supplied in one direction to the arrangement by way of a reversing valve and is disengaged when the reversing valve is actuated, a supplementary volume of liquid is supplied to give rapid clutch disengagement on actuation of the valve. As shown the turbine of a torque converter 1 is connected to an output shaft 5 by a clutch 3. A pump 23 supplies liquid to a reversing valve 7 at a pressure determined by a high pressure relief valve 25, the valve 7 being biased by a spring 11 to a position in which liquid is supplied through a line 26 to the interior of the output shaft 5 at a pressure determined by a low pressure relief valve 28. From the interior of the shaft 5 the liquid is led to the right hand side 4a of a pressure plate 4 to engage the clutch, and thence via the torque converter, the interior of the clutch, and an annular space between the shaft 5 and a sleeve shaft 6 to a line 27 and exhaust. On reversing the valve 7 by applying pressure through a line 13 to actuate a jack 9 controlling the valve, liquid is supplied through the line 27 to the interior of the clutch to disengage it. The jack 9 is itself constructed as a valve, and in its actuated position connects a high pressure line 13a to a line 13c leading to a chamber 19 of a device 14 having a piston 17 acting on a piston 18 of a larger diameter chamber 20 from which liquid is thus supplied to the interior of the clutch to supplement the disengaging liquid supplied by the pump 23. In a modification the jack 9 is a simple piston, the line 13 being directly connected to the device 14. In a modification of the device 14, the piston 18 is formed with a chamber 19 co-operating with a fixed piston.
Patent GB-1486940-A (GB)
Title: Vacuum sewage system
IPC: E03D11/00
Filed: 1974-12-23
Abstract: 1486940 Vacuum sewage system WARTSILA AB OY 23 Dec 1974 [29 Dec 1973] 55394/74 Heading E1C A vacuum sewer pipe 2 discharges through a non-return valve 4 into a collecting chamber 5 with a self-closing outlet 8, the chamber being connectable via a valve 12 to a vacuum pump 7 and to a source 16 of atmospheric or higher pressure. An automatic control 10 linked to a pressure sensor 13 is arranged to maintain a predetermined level of vacuum in the pipe 2 and, when the level is reached, switch the valve 12 so as to connect the chamber 5 to the pressure source 16. The pressure 16 assists in opening the outlet 8. If the level of sewage in the chamber 5 rises too high, a level detector 14 switches off the pump 7 and connects the chamber to the pressure source 16. A delay mechanism then prevents the chamber from being reconnected to the vacuum pump for a set time. Two chambers 5 may operate in parallel, the control 10 alternately maintaining one under vacuum and the other under atmospheric or greater pressure.
Patent GB-1339999-A (GB)
Title: Method of producing alkali metal carbonates
IPC: C01D7/07
Filed: 1971-11-30
Abstract: 1339999 Alkali metal carbonates KALICHEMIE AG 30 Nov 1971 [8 Dec 1970 27 Aug 1971] 55542/71 Heading C1A Alkali metal carbonates are produced by adding a 10 to 75% by weight aqueous solution of the alkali metal hydroxide to a recirculating aqueous solution of the hydroxide and carbonate and the resultant solution is finely dispersed in a CO 2  containing gas at a temperature between 150 and 700‹ C. for a reaction time of 0À1 to 10 seconds whereafter the liquid and gas are separated and then the product crystals are separated from the solution. To isolate the crystals a branch stream of the liquor containing the crystals may be withdrawn and filtered, the filtrate being recombined with the main liquor stream. For the production of Na 2 CO 3  the recirculated solution preferably contains 13 to 18% by weight of Na 2 CO 3  and 8 to 14% by weight of NaOH and in the production of K 2 CO 3  the preferred concentrations are 35 to 52% by weight of K 2 CO 3  and 8 to 20% by weight of KOH. When the K 2 CO 3  concentration is >45% by weight K 2 CO 3 .1À5 H 2 O is formed while if the concentration is <45% K 2 CO 3  crystals are formed. The alkali metal carbonate crystals produced may be dried with a CO 2  containing gas to convert any hydroxide to the carbonate.
Patent GB-1187619-A (GB)
Title: Improvements relating to Electrical Interconnection Grids
Inventor: GRIBBLE MAURICE WOOLMER
IPC: H05K7/08
Filed: 1967-12-08
Abstract: 1,187,619. Printed circuits. FERRANTI Ltd. 3 Dec., 1968 [8 Dec., 1967], No. 55818/67. Heading H1R. In an electrical interconnection grid comprising an insulating board having a set of parallel conductors on each side, the conductors of one set being skew with respect to the conductors of the other set, the conductors 10, 11 of at least one set are arranged in pairs with the conductors 10, 11 of each pair interconnected at spaced locations along the pair by a conductive strip 12 electrically connected with a conductor of the other set by hole 14 lined with conductive material. In the grid of Fig. 1, the conductors of the set on the bottom side of the board are arranged in a different pattern to those on the top side. The desired circuit is formed by cutting conductors 10, 11, strips 12 or lugs 13 as at 15, and also conductors on the other side of the board. In a modification, Fig. 3 (not shown), lug 13 extends on both sides of the enlarged portion through which hole 14 is formed to connect adjacent connecting strips 12 and the same pattern of conductors is formed on both sides of the board. The holes 14 may be formed directly through the connecting strips 12, Fig. 2 (not shown). By making the insulating board very thin and using the patterns as shown in Fig. 4, all the cuts to form the desired circuit may be made from the same side, the solid dots indicating the extremities of the cuts. The parallel conductors need not be straight.
Patent GB-1321638-A (GB)
Title: Self-locking threaded fastener having deflected thread crest  portion and die for making same
IPC: B23G5/04
Filed: 1970-11-24
Abstract: 1321638 Rolling threads RESEARCH ENG & MFG Inc 24 Nov 1970 [17 Dec 1969] 55885/70 Heading B3M [Also in Division F2] A thread-rolling die for making a self-locking bolt has alternating ridges and grooves to form uniform threads on a blank, at the discharge end of the die an insert 56 being secured in the bottom of at least one groove over a length corresponding to at least one thread turn of the bolt, the wall of said at least one groove being cut away at 60 opposite the insert 56, so that as the bolt passes beneath that portion of the die, the crest portion only of the formed thread is deflected away from the bolt head, to effectively tilt it, while the base portion of the thread remains unaffected.
Patent GB-1119368-A (GB)
Title: Polyester-polyoxyalkylene block or graft copolymer composition
Inventor: ROBERTSON MICHAEL MUNDIE
IPC: C08J7/04
Filed: 1964-07-22
Abstract: A composition suitable for use in the treatment of synthetic polyester shaped articles comprises a water-insoluble block or graft copolymer having a crystalline melting-point above 100 DEG  C. measured by the temperature of disappearance of birefringance, containing crystalline polyester segments and polyoxyalkylene segments dissolved in one or more solvents of which at least one is a swelling agent for synthetic polyesters in their oriented crystalline form.  The polyoxyalkylene group may be polyoxyethylene, polyoxypropylene, polyoxybutylene or a copolymer thereof, and where it is a polyoxyethylene group is preferably derived from a polyoxyethylene glycol having an average molecular weight of 300-6000.  When the polyoxyalkylene group is a polyoxyethylene group the copolymer preferably has a viscosity ratio as measured in a 1% solution in orthochlorophenol at 25 DEG  C. of 1.1-1.5.  A block copolymer containing 10-50% by weight of ethylene terephthalate repeat units and 90-50% by weight of polyoxyethylene terephthalate repeat units derived from a polyoxyethylene glycol of average molecular weight 1000-4000, the molar ratio of ethylene terephthalate units to polyoxyethylene terephthalate units being between 2:1 and 6:1, is preferably used.  The swelling agents used are benzaldehyde, benzyl alcohol, methyl salicylate, chloroform, dimethyl phthalate, methylene chloride, diethyloxalate, diethyl succinate, methyl iodide, o-phenyl phenol, 1-phenyl phenol or 1-phenyl ethanol. The composition may be used in the form of a aqueous dispersion which may contain a dispersing or surface-active agent, e.g. a sodium salt of sulphonated castor oil, a sodium salt of a sulphonated alkylene naphthalene or an alkyl ether phosphate or a protective colloid, e.g. gelatine.  The composition may also contain a dyestuff, optical brightening agent, dyeing assistant or antioxidant.
Patent GB-1181646-A (GB)
Title: Speed Control System for a D.C. Electric Motor
IPC: H02P7/295
Filed: 1968-11-26
Abstract: 1,181,646. Control of D.C. motors. SINGER CO. 26 Nov., 1968 [1 Dec., 1967], No. 55996/68. Heading H2J. [Also in Division G3] In a speed control system for a permanent magnet type D.C. motor comprising a silicon controlled rectifier 17 in series with the armature 20 of the motor across the full-wave rectified output 15, 16 of an A.C. supply 33, speed variations caused by supply voltage variations in a range above a predetermined minimum value are prevented by a circuit comprising members 22, 23, 26, 31, 32 in which the predetermined minimum value is set by the breakdown voltage of the Zener diode 32. At this point, the transistor 26 is substantially cut-off so that it has a negligible shunting effect across the voltage divider 22, 23 which supplies a triggering voltage from tap 24 determined by the voltage at terminals 15, 16 and the back E.M.F. of the armature 20. With increase of supply voltage from the predetermined minimum value, the transistor 26 is driven into conduction to alter the impedance of the divider 22, 23 and so alter the firing angle of S.C.R. 17, the effect being to cause the rectifier 17 to fire later in the cycle to compensate for the increased supply voltage.
Patent GB-1535170-A (GB)
Title: Apparatus for protecting an elongate installation such as a pipeline on the floor of a body of water
IPC: F16L1/14
Filed: 1974-12-30
Abstract: 1535170 Preventing erosion O F LARSEN 3 Dec 1975 [30 Dec 1974 21 Oct 1975 18 Sept 1975] 56027/74 43138/75 and 38441/75 Addition to 1383011 Heading E1A [Also in Division F2] The pipeline protecting device of the parent Application is constructed so that its own weight alone anchors it to the sea bed.
Patent GB-1249894-A (GB)
Title: Snoring doll
Inventor: PETER GUSTAV
IPC: A63H13/02
Filed: 1968-11-26
Abstract: 1,249,894. Snoring doll. G. PETER. 26 Nov., 1968 [14 Aug., 1968], No. 59126/68. Heading A6S.  A snoring doll has a motor-driven vibrating device which is capable of producing a snoring noise. The motor may also be connected to a device transmitting movement to part of the figure. In a preferred embodiment the doll is formed as a human figure or personified animal lying on its back and the mechanism comprises a vibratable tongue 4 firmly mounted on the base 3, which acts as a sound board. The tongue is arranged in the path of a toothed eccentric 5 which causes the tongue to vibrate periodically in order to produce snoring noises. The eccentric is driven by a spring drive motor 7. A connecting rod 9 is secured to the eccentric 5 in order to transmit movement to the doll. Thus the eccentric 5 drives the vibrating tongue and the rod 9 simultaneously. The connecting rod 9 is connected to the elastic abdominal skin 10 of the doll so that the snoring sound is synchronised with the movement of the skin.