baber/WOPTO huggingface dataset:
Patent GB-1153455-A (GB)
Title: Telecommunication Channel Control Arrangement
IPC: H04Q1/453
Filed: 1966-09-30
Abstract: 1,153,455. Voice frequency signalling. INTERNATIONAL STANDARD ELECTRIC CORP. 30 Sept., 1966 [6 Oct., 1965], No. 43823/66. Headings H4K and H4R. In an exchange system wherein it is necessary to transmit fault-indication-data via a busy line, the data transmitter S initially sends a V.F. " prepare " signal which readies a V.F. receiver E2 and causes resonant circuits F, tuned to the V.F. signals, to be inserted into the line so as to prevent spurious signals from affecting the receiver and thereafter sends one or more U.F. signals indicative of the nature of the fault. Relays SP1 and SP2 respond to the prepare signal so as to connect up the resonant circuits, an alternative form of which, using a three-winding transformer, is depicted in Fig. 2 (not shown). The prepare and fault signals are of the same frequency but differ in their duration.
Patent GB-1482101-A (GB)
Title: Electrical device
IPC: H01H43/02
Filed: 1974-10-10
Abstract: 1482101 Mounting switches SCHLEICHER GmbH & CO RELAIS-WERKE KG 10 Oct 1974 [31 July 1974] 43865/74 Heading H1N [Also in Division E2] An electrical device, such as a time-delay relay, measuring instrument or switching element, is adapted for alternative mounting on a channel-section rail 2 or a baseboard (not shown), said device comprising a housing 3, a nail-engaging formation 9 at one side of the housing and at the opposed side of the housing an integral leaf spring 6 extending parallel to the housing and formed releasably to engage the rail 2 whereby the device can be snapmounted on the rail, said device being further provided with screw-receiving lugs 7 on two other opposed sides to permit mounting on a baseboard (not shown). As shown the leaf spring 6 is U-shaped and has an inwardly directed saw-tooth projection. A rigid hook-like projection 9 is provided at each end of the opposite side of the housing 3. The leaf spring 6 preferably extends over one third to one half of the height of the housing.
Patent GB-1154942-A (GB)
Title: Improvements in or relating to Vehicle Repairing Apparatus
Inventor: WEBER EMIL
IPC: B21D1/14
Filed: 1966-09-30
Abstract: 1,154,942. Restoring to shape. E. WEBER, [trading as EMIL WEBER FABRIK HYDEK APPARATE]. 30 Sept., 1966 [1 Oct., 1965], No. 43897/66. Heading B3Q. Apparatus for repairing damaged motor vehicles comprises a horizontal carrier 1, at least one arm 8 pivoted on the carrier by an hydraulic, or screw, jack 11, a slide 22 for a pulling member, a head 28 detachably-connected to the free end of the arm 8, a further arm 30 pivoted on the head, and a further hydraulic, or screw, jack connected to the arm 30 and the head. The arm 8 can be formed as a socket to receive the head 28, or this may be mounted over the arm and secured by a pin engaging a hole 35. Above the slide 22 is a further pulling slide 25 secured by a wing bolt. Rollers 6, 20 are provided on an end coupling member 5 and brackets 16, 17 which may provide tool boxes and platforms. The arm 30 may be used for lifting engines &c.
Patent GB-980611-A (GB)
Title: Improvements in and relating to methods of refining aluminium-ammonium-alum
IPC: C01F7/743
Filed: 1961-12-07
Abstract: Aluminium ammonium alum is freed from heavy metals which are precipitated as sulphides by addition of excess ammonium sulphide in the presence of at least 0.003% of silica which acts as a coagulating agent and enable filtration to be effected.
Patent GB-1178446-A (GB)
Title: Photographic Silver Halide Print-Out Emulsions.
Inventor: MASON LESLIE FREDERICK ALFRED
IPC: G03C1/34
Filed: 1967-09-27
Abstract: 1,178,446. Photographic silver halide printout emulsion. ILFORD Ltd. Sept. 20, 1968 [Sept. 27, 1967], No.43943/67. Heading G2C. In preparing a photographic silver bromide or chlorobromide colloid print-out emulsion there is added to the emulsion before the physical ripening, from 0À1 to 15g. per 162g. of silver of a theoether of the formula:- where each n is an integer from 1 to 6 and x 1  and x 2  are each -OH 1  -CONH 2 , -CONHR 1  or -COOR 2  where R 1  is alkyl, hydroxyalkyl or aryl and R 2  is hydrogen or alkyl. The preferred compound is of the formula:- and the usual print-out additives may be present such as a Sn 1  Pb or Cd salt, a water-soluble bromide, a mercapto compound or a labile sulphur compound such as thiourea. The physical ripening is conducted to increase the internal sensitivity of the emulsion grains and the digestion or chemical ripening stage is omitted.
Patent GB-1509620-A (GB)
Title: Pyrophoric lighters
IPC: F23Q2/46
Filed: 1975-10-27
Abstract: 1509620 Lighters WILKINSON SWORD Ltd 25 Oct 1976 [27 Oct 1975] 44086/75 Heading F4F A spark-ignition lighter comprises a spark wheel 14, and a manually-operated actuator 5, spring-loaded for the return stroke, a resilient friction transmission member 12 for driving the wheel, and guide means 8, 9 for promoting the friction drive during the operating stroke and idle movement during the return stroke. Body 1 provides a liquid-gas reservoir and the burner valve 2 is actuated by a lever 3 which is pivoted by lever 5, urged into the retracted position by spring 11. The hard rubber pad 12 engages knurled side flanges 13 on the wheel 14, or the side flanges may form the resilient member. When wheel 14 has been rotated by pad 12 which is compressed, lever 5 moves to the right, Fig. 3, due to elongated slots 8, so that when the lever is retracted by spring 11, pad 12 moves upwardly without engaging the wheel. A push-button actuator 20, Fig. 5, may be used, a cam 31, and slots 23 providing the rightward movement of the button away from the wheel when the button is retracted by spring 27 and buffer spring 32.
Patent GB-1048930-A (GB)
Title: Flame tubes
Inventor: DENT HARRY
IPC: F23R3/60
Filed: 1963-11-12
Abstract: 1,048,930. Gas turbine combustion chambers. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 12, 1964 [Nov. 12, 1963], No. 44574/63. Heading F1L. A flame tube in a gas turbine engine has a wall structure comprising an outer cylindrical wall portion 10 surrounding inner cylindrical portions 14 to form a double-skin construction. Adjacent portions 14 overlap slightly axially and have corrugated spacers 18, Fig. 3 (not shown), at the position of overlap. Portions 14 are supported from the outer wall portion 10 at their upstream ends by circumferentially spaced resilient strip metal fingers 17. Cooling air is supplied to the annular space between the inner and outer wall portions.
Patent GB-1506417-A (GB)
Title: Cement compositions
IPC: C04B28/14
Filed: 1975-10-29
Abstract: 1506417 Ettringite-forming cement LAFARGE 29 Oct 1975 [31 Oct 1974] 44641/75 Heading C1H A ternary cement, which when hydrated forms ettringite, comprises by weight from 5 to 30% of Portland cement and/or crushed Portland cement clinker, from 40 to 75% of aluminous cement and from 15 to 50% of calcium sulphate (calculated as anhydrous CaSO 4 ). The composition may contain up to 1 per cent by weight of a retarding agent, e.g. boric acid, carboxylic acid, citric acid, α-ketoglutaric acid, salts of these acids, keratin or cellulosic derivatives such as carboxymethylcellulose. The composition may also contain synthetic fibres (e.g. glass) or cellulose fibres (e.g. lignocellulose). A cellular cement may be made by forming a paste of water and the ternary cement, and mixing the paste with an aqueous foam formed from 0À02% to 0À6% by weight based on the cement of an emulsifying agent and water. The emulsifying agent may be a sulphate of a fatty alcohol, an alkyl aryl sulphonate, an amine salt, an amino acid, an ammonium salt, an ether or a copolymer.
Patent GB-1112006-A (GB)
Title: Container for liquids such as liquefied gases at atmospheric pressure
IPC: B63B25/16
Filed: 1965-10-22
Abstract: 1,112,006. Barges for liquefied gases. ESSO RESEARCH & ENGINEERING CO. 22 Oct., 1965 [18 Jan., 1965], No. 44861/65. Heading B7A. [Also in Division F4] A barge for transporting liquefied gases at a low temperature and atmospheric pressure has a hull comprising bow and stern portions 10, 11, Fig. 1, with a plurality of holds 15a therebetween, the hull being fabricated from panels 17, Figs. 3 and 5, which include shells 18 made of reinforced plastics material e.g. fibre-glaasreinforced polyester-resin, and having discrete bodies 19 lodged therein, which bodies are made of cellular thermally-insulating material e.g. foamed P.V.C. or polyurethane. The edges of each panel have a stepped configuration and a gap between adjacent panels may be closed by an epoxy-resin adhesive 21. The shells may be strengthened by webs 24; and connecting pieces 27, 28 may be used to interconnect the ends of adjacent rows of panels, these pieces being similar to the panels. Hatches 16 in a deck 13 give access to the holds.
Patent GB-1294776-A (GB)
Title: A process for the manufacture of benzodiazepine derivatives
Inventor: EARLEY J V
IPC: C07D243/24
Filed: 1971-09-27
Abstract: 1294776 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 27 Sept 1971 [23 Dec 1970] 45004/71 Heading C2C Compounds of the general formula (R<SP>1</SP> = H, halogen, NO 2 , CF 3  ; R<SP>2</SP> = C 1-7  alkyl; R<SP>3</SP> = H, halogen) are prepared by thermally rearranging a compound of the formula in turn prepared by reacting a compound of the formula with an alkali metal alkoxide.
Patent GB-1424251-A (GB)
Title: Excited gas arc lamp for pumping lasers
IPC: H01J65/04
Filed: 1973-09-27
Abstract: 1424251 Discharge lamps; lasers PERKINELMER CORP 27 Sept 1973 45245/73 Headings H1D and H1C [Also in Division H2] Apparatus for pumping a laser comprises a transparent lamp envelope 10a having an effective width in the range from 1 to 30 mm. and a length of not more than 150 mm. and containing one of the inert gases Kr, Xe and A at a cold pressure in the range from 0À5 to 20 atmospheres, a coil 11a around the envelope 10a for generating a flux in the envelope, and connected in a circuit including a source 12 of RF voltage capable of supplying sufficient RF power through the coil to maintain a plasma in the gas in the envelope and means 13, 14 for adjusting the impedance of the circuit firstly to match the impedance of the cold gas in the envelope and then to match the impedance of a plasma ignited in the gas, and a mounting 22 for a laser rod 21 adjacent the lamp envelope so that light from the envelope can impinge on a laser rod carried by the mounting. The lamp 10a which is supported by an annular member 23 from one wall 20 of the chamber 18 is ignited by bringing a probe 15 of a Tesla coil 16 into contact with an extension 24 of the lamp envelope. The laser rod 21 is supported in holders 22 mounted through the chamber end walls 20 and is cooled by water circulating from an inlet 25 to an outlet 26. The capacitors 13 and 14 can be adjusted manually sufficiently rapidly for the source 12 to maintain the plasma once it has been ignited by the coil 16. The chamber 18 is surrounded by a reflector 27. In alternative embodiments (Figs. 3-8, not shown) the reflector is a coating of zinc oxide on the inner or outer surfaces of the walls of the chamber 18 which may be elliptical in shape with the lamp and laser rod mounted at the foci or spherical in shape with the lamp and laser rod mounted at the centre.
Patent GB-1284297-A (GB)
Title: Improvements relating to fluid cushion vehicles
Inventor: WINTER ANTHONY
IPC: B60V1/16
Filed: 1969-09-15
Abstract: 1284297 Fluid-cushion vehicle BRITISH HOVERCRAFT CORP Ltd 2 Sept 1970 [15 Sept 1969] 45376/69 Heading B7K A fluid-cushion vehicle has the supporting cushion 19 bounded by a skirt including a plurality of segments 25, with a diaphragm 16 extending across each segment so as to define a compartment 17. The segments may depend from a bag skirt 15 formed from a sheet 12 of flexible impermeable material and supplied with pressurized air which may then be supplied to the cushion via orifices 20 and to the compartments 17 via orifices 18 in the sheet 12. Air in the compartments may escape to the cushion through orifices 21 in the diaphragms 16. Further compartments (29), Fig. 5 (not shown), may be defined by further diaphragms (28) having orifices (30). The relative sizes of the orifices are chosen so that the pressure in the bag skirt 15 is greater than that in the compartments 17 (which is greater than that in the compartments (29) when provided), which is greater than the cushion pressure, so that the upper parts of the skirt assembly are stiffer than the lower parts. A modification (Fig. 4, not shown) uses a shorter sheet 12 and has larger segments, and there is no direct communication between the interior of the skirt 15 and the cushion area.
Patent GB-1401353-A (GB)
Title: Retention aids and drainage aids in the manufacturing of paper
IPC: D21H17/37
Filed: 1972-10-02
Abstract: 1401353 Paper CALGON CORP 2 Oct 1972 [6 Oct 1971] 45428/72 Heading D2B A water-soluble polymer containing at least 2.5 mole% 2-acrylamido-2-methylpropane sulphonic acid or a water-soluble salt thereof is used as a drainage and filler retention aid in paper manufacture. The polymer may be prepared by copolymerising 2-acrylamido-2-methyl propane sulphonic acid with one or more of the following monomers - acrylamide, acrylic acid, methacrylamide, methacrylic acid, N- lower alkyl substituted acrylamides and methacrylamides, alkali metal styrene sulphonates, N-vinyl pyrrolidine, di lower alkyl diallyl ammonium chlorides, vinyl acetate, acrylonitrile, vinyl chloride, lower alkyl esters of acrylic and methacrylic acid, styrene, and diacetone diacrylamide. Rosin size and alum may be added to the pulp furnish. The filler may be clay or TiO 2 . Reference has been directed by the comptroller to Specification 1355289.
Patent GB-1062460-A (GB)
Title: Glutaric acid derivatives and their preparation
Inventor: DRAIN DAVID JOHN
IPC: C07C69/42
Filed: 1964-11-07
Abstract: Novel half esters of a dicarboxylic acid with trichloroethanol having the general formula <FORM:1062460/C2/1> wherein R1, R2, R3, R4, R5 and R6, the meaning of any one of which is independent of the meaning of any other, represent H or alkyl groups having 1-6 carbon atoms, and the alkali metal salts thereof, are prepared by partially esterifying the anhydride of a dicarboxylic acid of general formula <FORM:1062460/C2/2> in which R1, R2, R3, R4, R5 and R6 are as defined above, with trichloroethanol and, if desired, neutralizing the resultant half ester with a basic alkali metal compound.
Patent GB-1506897-A (GB)
Title: Method of securing fixing elements in rock
IPC: C04B24/38
Filed: 1975-11-05
Abstract: 1506897 Plaster composition IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Oct 1976 [5 Nov 1975] 45925/75 Headings C I H and C 1A [Also in Division F2] A plaster composition suitable for grouting a fixing element in a drill hole in a rock mass comprises α-gypsum gauged with water having dissolved therein 0À01 to 3% w/v of a water-soluble salt of carboxylic methyl cellulose. The plaster composition may include hydroxypropyl guar gum, non-ionic cellulose ether e.g. hydroxy propyl methyl cellulose, methyl cellulose or methyl hydroxy ethyl cellulose, or fillers e.g. mineral clays, talc, blast-furnace slag, glass, asbestos, chalk, ground limestone, quartz, pumice, Portland cement, cellulosic fibre such as woodmeal and sawdust or synthetic plastics fibre such as nylon fibre.
Patent GB-1214460-A (GB)
Title: Method and tool for driving self-tapping screws
Inventor: ALLSOP ROBERT TREVOR
IPC: B25B21/02
Filed: 1967-06-23
Abstract: 1,214,460. Power actuated screwdriver. R. T. ALLSOP. 17 June, 1968 [23 June, 1967 (2); 7 Oct., 1967], Nos. 28981/67, 28982/67 and 45977/67. Heading B3N. A method of driving a self-tapping screw 37 having a piercing point 38 into a sheet metal workpiece comprises the steps of (a) engaging the workpiece with the screw, the screw head with a power-operated rotary bit 36 which is axially reciprocable; (b) applying simultaneously to said bit rotary torque and axial vibratory impacting to cause the formation of a pilot hole and (c) maintaining the vibratory impacting at least until the piercing point 38 has completely entered the workpiece to its full depth. Rotary torque is applied throughout the screwdriving while the depth of impacting varies from the minimum depth referred to above with thin sheet to prevent buckling to the full depth of driving with thick sheet as the resistance to screwing is reduced by the vibration. A suitable tool, Fig. 1, has an air motor 21 driving through a gear-box 22 and 24, gearing (25) (Fig. 2, not shown) 26, portion 40 of the bit, which portion rotates with, but is slidable within, the gear 26. An impact piston 45, controlled by a flutter valve device 50, reciprocates within a cylinder 44 of larger diameter than but coaxial with the bore 42 in which the end 41 of the bit slides. A sleeve 52 threadedly engages both a sleeve 55 surrounding the end 36 of the bit and an end cap 31 of the tool, and the axial position of the sleeve 55 is adjusted so that the piston 45, although still reciprocating, ceases to impact the bit which is still rotated when the screw has been driven to a chosen depth. Alternatively a pneumatic time delay (Fig. 5, not shown) may be disposed in the line between the air valve 18 and the reciprocating piston 45 to determine the period of vibration. In a further alternative (Fig. 7) the bit is rotated through a pair of partly relatively rotatable clutch members 98, 99, with cam surfaces 107 on their opposing faces. As the resistance torque increases as the screw head reaches the workpiece the clutch member 99 moves to the left against the spring 104, due to the action face cam surfaces 107, and engages the flange 106 on the bit to move it away from the path of the piston 103. A modified tool (Fig. 7A, not shown) has a motor driving the bit through bevel gears (121), (122) and the screwdriver bit comprises two parts which are held apart by a spring (132) to prevent impact on a screw unless the tool is pressed against a workpiece to compress the spring.
Patent GB-1205519-A (GB)
Title: Novel 1,2-dihydro-benztriazine derivatives and process for preparing the same
IPC: C07D487/04
Filed: 1968-09-27
Abstract: 1,205,519. Fluoro or trifluoromethyl-amino- 1,2,4-benztriazines. SIEGFRIED A.G. 27 Sept., 1968 [27 Sept., 1967], No. 46162/68. Addition to 1,087,831. Heading C2C. Novel 1,2,4-benztriazine derivatives of the formula and pharmaceutically acceptable acid addition salts thereof, wherein X is F or a CF 3  group, Y is an unsubstituted or substituted amino radical (including a heterocyclic amine radical) or a C 1-3  alkoxy group; and Z<SP>1</SP> and Z<SP>2</SP>, which may be the same or different, are each H or an acyl radical or together represent the two acyl radicals of a dicarboxylic acid which may be substituted by a C 1-5  alkyl or a cycloalkyl group, may be obtained by reacting a 1,2,4-benztriazine-1-oxide of the formula with a reducing agent and isolating the reduct product as an acid addition salt or, when a compound in which Z<SP>1</SP> and Z<SP>2</SP> are not both H is required, acylating the product with an appropriate acylating agent.
Patent GB-1147146-A (GB)
Title: Improvements in or relating to electrical converting apparatus
Inventor: KILGORE LEE ALTON
IPC: H02M1/092
Filed: 1966-10-17
Abstract: 1,147,146. Semi-conductor circuits. WESTINGHOUSE ELECTRIC CORP. 17 Oct., 1966, No. 46226/66. Heading H3T. [Also in Division H2] A converter, particularly for use in highvoltage D.C. transmission systems, comprises a plurality of series-connected thyristors provided with arrangements for distributing transient and steady state voltages uniformly across the thyristors and with means for limiting the rate of change of current; said thyristors being triggered, by one or more circuits responsive to electro-magnetic radiation. Fig. 1 (not shown) relates to a high-voltage rectifying system utilizing a 3-phase bridge, each arm of which consists of three parallel paths each containing a series arrangement of four groups of ten to thirty series-connected thyristors. Inductors (44, 46) or transformers ensure uniform current distribution between parallel paths. Each thyristor is shunted by a resistance capacitance network 68, 76, 70 (Fig. 2A) so as to provide uniform voltage distribution. A saturable or non-saturable inductor 80, damped by a resistor 82 is included in series with each thyristor so as to reduce the rate of build-up of current. If a further saturable or non-saturable inductor 84 is included as shown, only a single inductor 80 is necessary in each series circuit. A damping diode may be included in series with resistor 82 (Fig. 2B, not shown). As shown in Fig. 3, each thyristor 66 . . . 66<SP>111</SP> is triggered by a control thyristor 140 via a transformer 100 having a Zener diode 142 as a voltage limiter. Capacitor 132 is charged via a bridge rectifier 160 from a circuit 110, 112 connected across part of the A.C. supply and is discharged via winding 102 when thyristor 140 is triggered by a light pulse from 152 being received by a photo-resistor 150 or photo-transistor. The master firing control circuit 152 may utilize a laser diode or xenon arc arranged to radiate appropriately timed pulses to a plurality of detectors 150 each associated with one or more groups of seriesconnected thyristors. Alternatively, circuit 152 may emit U.H.F. radio waves of different frequencies for respective groups of thyristors. In Figs. 6, 7 (not shown) the bridge 160 is omitted and a further thyristor or emitter follower interposed between device 150 and thyristor 140. In Fig. 5 (not shown), a single radiation responsive device 150 is directly connected to the control electrode of each main thyristor. Modifications.-The inductor 80 may be replaced by a split ferrite core around each thyristor carrying a winding connected to a damping resistor. A mono-stable multi-vibrator may be included between the radiation detector 150 and the control thyristor 140. In Fig. 4 (not shown) the control thyristor 140 is replaced by a gate-controlled switch. Reference has been directed by the Comptroller to Specifications 1,072,740, 1,077,556 and 1,082,783.
Patent GB-1321469-A (GB)
Title: Sheet feeder
IPC: B65H3/08
Filed: 1970-09-30
Abstract: 1321469 Feeding sheets MASCHINENBAU OPPENWEILER GmbH 30 Sept 1970 [4 Oct 1969] 46522/70 Heading B8R A sheet feeder having a withdrawal station 17, e.g. a suction roller 5, at the output end of a conveyer 21 on which overlapping sheets are transported, has a separating mechanism 27 above the conveyer comprising a separating blower 3, for blowing air between an uppermost sheet and a following sheet, and a suction head 2 movable towards and away from the conveyer 21 and spaced from the withdrawal station 17 at a distance less than a sheet length, a holding down device to hold down the following sheet, e.g. rollers 9, and a feeler to sense the position of a transverse edge portion of the uppermost sheet and to prevent it being sucked up to the head 2 until its front edge is located at the withdrawal station 17. The rollers 9 may be mounted on the blower nozzle, a feeler finger (8), Fig. 2 (not shown) on the suction head holding the uppermost sheet from the suction head 2 until the leading end of the sheet reaches the withdrawal station and blocking the air blow from the blower 3 as the suction head descends. Alternatively a sheet leading edge feeler 14 at the feed station may be provided to control the vacuum to the suction head 2 and the movement of the conveyer 21.