baber/WOPTO huggingface dataset:
Patent GB-1258839-A (GB)
IPC: D06F33/44
Filed: 1969-11-12
Abstract: 1,258,839. Washing machines. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 12 Nov., 1969 [15 Nov., 1968], No. 55483/69. Heading D1A. In a washing machine with a pulsator mounted within a washing drum and a time switch providing a series of cycles from washing through rinsing to drainage, rinsing detection means are provided which stop the drive of the time switch during the rinsing cycle until its completion and comprise a luminous element 8 and a photosensitive element 9 for detecting the transparency of the washing water and control means for controlling the drive of the time switch. As shown, liquid overflow from the drum during rinsing enters a sampling box at 10 and leaves at 11, detergent in the liquid causing bubbles to form in the box, which bubbles in rising to an air outlet 12 prevent actuation of the Cd S cell 9 until the rinse water is free of detergent. In a modified arrangement (Fig. 10) part of the overflow passes through a by-pass tube C and thereby draws air through holes E to maintain the flow through the sampling box 7 sensibly independant of the total overflow. In a further alternative the sampling box is disposed in the drum. In operation the drum is first filled through a water valve 30 by closing a switch 21 until a water level switch 24 is changed from contact 'a' to 'b' thereby starting a timer motor 28 and the reversing pulsator drive motor 29 to start the washing cycle. At the end of the wash cycle time the contact 'a' of the switch 24 is closed to again introduce water for rinsing until the contact 'b' is closed again to actuate the pulsator motor 29 while a switch 23 is closed to maintain the water flow and cause overflowing. After a set time to permit stirring up of the detergent in the wash, switches 38 and 39 are closed to energise the lamp 8 and to discharge a capacitor 40. This switches on the transistor 47 and operates an electromagnet 45 to raise a gear (50) (Fig. 7 not shown) in the timer drive, the gear closing a switch 46 when raised which is connected to the photocell element 42. In addition a switch 43 is closed when the rinse water is well mixed, such as during clockwise rotation of the agitator, at intervals until the water becomes clear, when the photocell resistance is reduced and the transistor switch 47 operates to release the gear (50) and thus continue the wash programme. The operating point of the photocell is adjustable by a potentiometer 44.
Patent GB-1259566-A (GB)
IPC: G01N27/12
Filed: 1970-07-13
Abstract: 1,259,566. Detecting a reducing gas electrically. N. TAGUCHI. July 13, 1970, No.33949/70. Heading G1N. [Also in Division G4J A device for detecting a reducing gas such as H, Co, alcohol repair, gasoline vapour or smoke comprises a metal oxide semi-conductor element 2, which is included in an alarm circuit operative when the resistance of the element changes due to the presence of gas, the circuit including a resistance 38 shunting the alarm 34 for a short period after switch on to avoid false alarms which might otherwise occur in that period. As shown the element comprises an inner electrode 10 provided with a heater wire 14, metal oxide material 8, and an outer electrode 6 which is connected by wire 24 to an outer case 4. A thermal switch 30 moves from contact 36 to 32 after a few minutes. Alternatively a time switch may be used or connection may be made through temperature sensitive resistors, Fig.4 (not shown). The heater 14 provides a temperature of 170- ‹C. 230‹C. at which the oxide is most sensitive. Suitable semi-conductor materials are SnO 2 , ZnO, Fe 2 O 3 , Ti0 2 , V 2 0 5 , MnO 2 , W0 3 , ThO 2 , MoO 3 , CdO and PbCrO 4 .
Patent GB-1266877-A (GB)
IPC: B60R1/08
Filed: 1968-08-17
Abstract: 1,266,877. Rear view mirrors. J. DONALDSON. 17 Nov., 1969 [17 Aug., 1968], No. 39443/68. Heading B7J. A rear-view mirror assembly comprises two distinct plane reflectors 11, 12, the planes of whose reflecting surfaces are inclined and meet along a line between the adjacent edges of the reflectors, and a frame 13 which has an aperture and holds the reflectors 11, 12 in a non-adjustable position behind the aperture to provide an image of overlapping views. The adjacent edges of the reflectors are engaged by a nylon strip 22 and are held in the frame 13 by a split holding assembly 23, Fig. 5, the assembly being retained in the frame by a lip 18. A foamed material 24 is interposed between the back 15 of the frame and the reflectors 11, 12. The assembly may include more than two reflectors.
Patent GB-1289049-A (GB)
IPC: G05D11/13
Filed: 1970-05-05
Abstract: 1289049 Automatic colour density control CHURCHILL INSTRUMENT CO Ltd and RESEARCH ASSOCIATION FOR THE PAPER & BOARD PRINTING & PACKAGING INDUSTRIES 5 May 1971 [5 May 1970] 21619/70 Heading G3R [Also in Divisions B6, G1] In a lithographic printing machine, the thickness of an ink film and the thickness of a combined ink and water film on respective rollers are measured photo-electrically to develop a signal indicative of printing quality which can be used for control purposes. In the Fig.1, roller system, plate cylinder 1 receives ink from supply duct 5, via reciprocating roller 6 and even film producing rollers 8, 9, and water from supply trough 13 via roller 13a, reciprocating roller 14 and rollers 15-17 to dampen the plate. A photo-electric ink film monitor works off roller 12, and an ink plus water monitor off roller 2. The monitors may be of the type described in Specification 1140107 or as modified in Specification 1226487, which use a pair of photo-resistors in a bridge circuit. In the system of Fig.1, monitors of this type are connected to the inputs of a differential amplifier 32, Fig.2, feeding meter 33. Alternatively to dual photo-cell monitors, ones using a single photo-cell may be used. An output from the differential amplifier indicates the need for appropriate adjustment of the water relative to the ink supply, which may be done automatically by controlling the dwell time of the roller 6 or 14 on roller 5 or roller 13a, respectively. Details of a test of the apparatus as applied to a two colour-press are given.
Patent GB-1289190-A (GB)
IPC: H05B7/109
Filed: 1970-12-31
Abstract: 1289190 Electrode support KNAPSACK AG 31 Dec 1970 [9 Jan 1970] 61996/70 Heading H5H Ejection or return movement of a furnace electrode 1 due to a sudden rise in furnace pressure is prevented by a clamping device which permits feeding movement of the electrode 1 into the furnace but opposes return movement. The clamping device comprises a cylindrical sleeve 4 provided with angularly spaced through bores 5 containing clamping elements 6 adapted to engage the electrode 1 and a surrounding sleeve holder 8, the sleeve 4 being resiliently supported by springs 10 on the holder 8. As shown elements 6 are balls which are wedged between conical internal surface of holder 8 and the electrode 1 on return movement of the electrode 1. In Fig. 3 (not shown) elements 6 are in the form of levers pivoted in holder 8 and engaging the electrode 1. Should an imperfection e.g. 13 of electrode 1 be encountered by clamping elements 6 as the electrode is fed to the furnace, springs 10 permit the sleeve 4 to move axially with the electrode until the elements 6 have sufficient room to move clear of the imperfection in the direction C. The holder 8 may be loosely retained on the furnace by a ring 12 to permit tilting of the electrode 1.
Patent GB-1297201-A (GB)
IPC: F41A19/57
Filed: 1970-02-26
Abstract: 1297201 Guns FRANCE ARMED FORCES MINISTER OF 26 Feb 1970 [27 Feb 1969] 9468/70 Heading F3C A gun is provided with a breech mechanism for the introduction, percussion and ejection of percussion tubes, and with a rectilinear charger containing a reserve of percussion tubes. As shown in Fig. 1, the main breech wedge 1 is open and incorporates a detachable charger 2 for percussion tubes 3. On closing this breech wedge, rack and pinion 5, 6 operate to move percussion tube breech block 4 to the right, forcing a percussion tube into chamber 9 where it is fired by the action of percussion hammer 8 and striker 7 to ignite the propellant charge. Mechanism for extraction and ejection of percussion tube cases is also included.
Patent GB-1304162-A (GB)
IPC: B23P15/10
Filed: 1968-12-30
Abstract: 1304162 Compacting metal powders ASSOCIATED ENG Ltd 26 March 1970 [30 Dec 1968] 1106/71 Divided out of 1254884 Heading B5A [Also in Division C7] A piston is made by compacting metal powders in a perforated die 31 with the powder maintained as a fluidized bed by air streams entering perforations 32. The powders used may form an Al alloy containing 11% Si, 1% Cu, 1% Mg, 1% Ni. Ferrous powders or powders containing Al-Fe-Si or Al 3 Ni may also be used. Layers of different powders may be arranged in the die to form the piston with a crown and skirt of different compositions. The pressed piston is then sintered.
Patent GB-1308787-A (GB)
Title: Pyridoquinoline derivatives
IPC: C07D471/02
Filed: 1970-10-05
Abstract: 1308787 Phenanthrolines and other pyridoquinolines IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Sept 1971 [5 Oct 1970 18 Nov 1970 22 Feb 1971] 47151/70 54868/70 and 5096/71 Heading C2C [Also in Division A5] The invention comprises compounds of formulµ and their non-toxic pharmaceutically acceptable salts, wherein R<SP>1</SP> is H or Me; R<SP>2</SP> is OH, C 1-6  alkoxy, C 7-10  phenylalkoxy or PhO; ring B optionally bears 1 or 2 substituents selected from C 1-8  alkyl, up to C 6  cycloalkyl, C 1-6  alkoxy, CF 3 , Ph, PhO, halogen or NR<SP>3</SP>R<SP>4</SP> (R<SP>3</SP>, R<SP>4</SP> = C 1-6  alkyl or R<SP>4</SP> = Ph, or NR<SP>3</SP>R<SP>4</SP> is up to C 7  N- heterocyclyl), or ring B in the phenanthrolines may bear a C 3-5  alkylene radical, but when R<SP>1</SP> is Me, the only optional monovalent substituents on ring B are 5- or 6-C 1-5  alkyl, C 1-4  alkoxy, PhO, piperidines or morpholines, or 5,6-Me 2  or 5-Ph-6-MeO; excluding 2,8-dicarboxy-4,10-dihydroxy-1,7-phenanthroline and its C 1-6  alkyl esters ,and 4,9-dihydroxy-2,7-dimethoxycarbonylpyrido[2,3-g]quinoline. These compounds are prepared by cyclization of the corresponding diimine of formula   (where the ring is optionally substituted as described for ring B), which is itself made by reacting the corresponding phenylenediamine with R<SP>2</SP>COCHR<SP>1</SP>COCOR<SP>2</SP> or R<SP>2</SP>COC:CCOR<SP>2</SP>; the diamines, usually characterized as the N,N<SP>1</SP>- diacetyl derivatives, are prepared by reducing the corresponding dinitrobenzenes. Interconversion of acids and esters may be effected by standard procedures.
Patent GB-1309942-A (GB)
Title: Formazan dyes
IPC: G03C1/83
Filed: 1970-02-19
Abstract: 1309942 Formazan dyes ILFORD Ltd 19 April 1971 [19 Feb 1970] 8095/70 Heading C4P [Also in Division G2] The invention comprises formazan dyes of the general formula wherein R 1  is an aryl or substituted aryl group; R 2  is an alkyl group containing up to 6 carbon atoms, and R 3  is a diphenyl or stilbene radical wherein both of the benzene nuclei are substituted with a sulphonic acid group or an alkali metal or ammonium salt thereof. The dyes are prepared by tetrazotizing the disulphonic acid derivative of benzidine or stilbene, and reacting the tetrazo derivative with an aldehyde aryl-hydrazone compound of the general formula R 1 -NHN = CHR 2  in the presence of a basic condensing agent and isolating the formazan dye as a di-alkali metal salt. The dyes are used as yellow filter dyes in silver halide colour photographic material.
Patent GB-1315302-A (GB)
Title: Rotary electrical machines
IPC: H02K55/04
Filed: 1969-06-10
Abstract: 1315302 Cooling electrical machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 3 June 1970 [10 June 1969] 29436/69 Heading F4U [Also in Division H2] A synchronous A.C. machine, e.g. generator has a rotor, cooled to superconductivity by a refrigerator wholly within the rotor or, outside the rotor or, as shown, by two stages 19, 20 respectively outside and inside the rotor. A compressor 18 supplies the stage 19, coils 23 cool rotor transistors members 1b and systems 21, 22 cool excitation current leads, not shown, from slip rings (14), Fig. 1.
Patent GB-1320851-A (GB)
Title: Method of producing a sintered alumina article permeable to sodium and potassium ions
IPC: H01M10/39
Filed: 1971-04-16
Abstract: 1320851 Sodium or potassium permeable alumina TOYOTA CHUO KENKYUSHO KK 16 April 1971 9648/71 Heading C1A [Also in Division H1] A sintered alumina which is permeable to sodium and potassium ions and in which these ions are uniformly distributed is prepared by (a) heating sintered α-alumina, which is non- permeable to these ions, at a temperature of 1200 to 1700‹ C. in an atmosphere containing sufficient sodium or potassium or their oxides to impregnate the alumina thereby producing alumina permeable to these ions and (b) heating the alumina obtained in (a) at 1400 to 1800‹ C. in an atmosphere containing sufficient sodium or potassium or oxides thereof to allow the infused sodium or potassium to diffuse evenly throughout the alumina without diffusing out. The alumina obtained in (b) may be washed with water to remove any residual sodium or potassium aluminate present in the alumina. A preferred method is heating the α-alumina immersed in a mixture of α-alumina and sodium or potassium or a sodium or potassium containing material e.g. Na 2 CO 3 , Na 2 O 2 , NaAl- SiO 4 , 3Na 2 O, AS 2 O 5 , Na 2 OTa 2 O 5 , 3Na 2 O P 2 O 5 , NaNbO 3 , Na 2 ZrSiO 5 , NaAlO 2 , K 2 CO 3 , K 2 O 2  or KAlO 2 . The product is suitable as a separator in batteries.
Patent GB-1321564-A (GB)
Title: Built-up rolling mill sleeve roll and method of making the same
IPC: B21B27/03
Filed: 1971-10-13
Abstract: 1321564 Jointing; making rolls HITACHI METALS Ltd 13 Oct 1971 47670/71 Headings B3A, B3M and B3V A rolling mill roll comprises a sleeve shrinkfitted on a shaft and sharp particles of not less than 0À05 mm. in size embedded in the contiguous surfaces of the sleeve and shaft. Steel or ceramic particles may be used which may be mixed with a silicon binder and applied to either or both surfaces. Alternatively, the binder may be applied to the shaft and the particles sprayed on to the binder.
Patent GB-1323056-A (GB)
Title: Friction welded flanged pipes
IPC: B23K20/12
Filed: 1969-09-22
Abstract: 1323056 Making flanged pipes; welding by pressure; cutter head BRITISH SHIP RESEARCH ASSOCIATION 13 July 1970 [22  Sept 1969] 46660/69 Headings B3A B3C and B3R A method of manufacturing a flanged pipe comprises holding the pipe against movement in clamps 3, rotating a flange 2 in a chuck 9 and friction welding the flange to the pipe, withdrawing the chuck and mounting at least one cutter tool in the chuck and removing the flash caused by the friction welding. The cutting tool comprises a holder 4 provided with a part 5 for gripping by the chuck and a pair of forwardly extending parts 7 which carry inwardly and outwardly directed cutter tips 8 axially and radially spaced from one another. By placing a pipe in the clamps 3 the welding parameters are automatically set to suit that particular size of pipe by several electric switches (not shown) on the pipe clamp. The switches respond to a pattern of projections or holes on the surface of the clamp jaws and preset the machine. The machine settings can be adjusted manually.
Patent GB-1331832-A (GB)
Title: Valve assemblies for controlling brake pressure in a vehicle  braking system
IPC: B60T8/18
Filed: 1971-02-26
Abstract: 1331832 Load responsive brakes CHRYSLER UNITED KINGDOM Ltd 13 Jan 1972 [26 Feb 1971] 5573/71 Heading F2F A load-responsive brake pressure control valve arrangement includes a valve 12, having a pivoted operating member 15, a connecting member in the form of a strut 21 fixed at its lower end to the differential casing of the vehicle by a bracket 25, the member 15 being rotationally adjustable about the longitudinal axis of strut 21 by releasing the means clamping it to the bracket.
Patent GB-1334098-A (GB)
Title: Dummy block assembly for end of extrusion ram
IPC: B21C26/00
Filed: 1971-12-18
Abstract: 1334098 Extruding E S BOGDANOV A S ALEXANDROV Y D SCHEGOLEVATYKH K V I SAVELIEV M F ZAKHAROV J N ALEXANDROV M KORSETSKY A A KUCHER 18 Dec 1971 58937/71 Heading B3P An extrusion plunger comprises a holder 1 secured to a press ram 2 and a nut 4 which is normally spaced from a shoulder 3 on the holder by a distance A which is taken up during extrusion by axial movement and corresponding outward resilient deformation of the nut. The nut 4 and the holder 1 may be connected by screw-threads or by locking slots. The angle α of the threads or the angle α<SP>1</SP> of the holder surface, Fig. 3 (not shown) preceding the lock slot is selected so that A = B cotangent α where B is the permissible radial displacement of the nut. On the return stroke of the press ram, the frictional drag of the extrusion press container wall on the nut causes the nut and shoulder to separate.
Patent GB-1334792-A (GB)
Title: Aqueous dispersions of polyurethanes
IPC: C08J3/07
Filed: 1970-09-21
Abstract: 1334792 Polyurethane dispersions UCB 17 Sept 1971 [21 Sept 1970] 44785/70 Heading C3R Water dilutable, oil-in-water, dispersions are prepared by first dissolving a linear or slightly branched thermoplastic polyurethane (I) which contains <0À2% free NCO groups in an organic medium (II) having a solubility in water at ambient temperature which is <25% by wt. The solution is then dispersed in water in the presence of at least one surfactant (III). I may be prepared by reacting a polyether, polyester or polyolefin glycol with an organic diisocyanate, optionally with conventional chain extenders. II may be at least one of isophorone, hexane, toluene, benzene, xylene, pentane, octane, decane, dodecane, cumene, cyclopentanone, cyclohexanone, benzophenone, methyl isobutyl ketone, ethylene chloride, nitropropane, amyl acetate, isopropyl ether, isobutyl ether, cyclohexanol, dimethyl phthalate or dibutyl phthalate. Other solvents may be used in conjunction with the above providing that the total solvent mixture has a solubility in water of <25% by wt. Examples are dimethylformamide, dimethylsulphoxide, methanol, ethanol, propanol, methylamine, ethylamine, ethylenediamine, aniline or methyl ethyl ketone. III, which may be anionic, cationic, non-ionic or amphoteric, may comprise 0À01-10% by wt. of the total dispersion. A protective colloid, e.g. casein, polyvinyl alcohol, polyvinylpyrrolidone, carboxyl containing vinyl polymer, a cellulose derivative, an alginate or a natural gum may additionally be present at up to 10% by wt. of the total dispersion. Dispersion may take place at 30-150‹ C. Uses.-Coating and impregnation.
Patent GB-1335002-A (GB)
Title: Cooling tower
IPC: E04H5/12
Filed: 1972-03-21
Abstract: 1335002 Cooling towers FRIED KRUPP GmbH 21 March 1972 13206/72 Heading F4K In a cooling tower having a wall constituted by a non-self-supporting sheath carried and supported by a cable system 5, 8 which extends in tension between an octagonal distance ring  carried by a central post 4 and the foundation, the post 4 extends upwardly beyond the distance ring 1 which is suspended from the post by tension members 3, e.g. cables or iron rods. Two cables 5 diverge downwardly from each corner 2 of the ring 1 and are attached in V-formation at their lower ends to suspension points 6 of another octagonal distance ring 7. Two cables 8 diverge from each suspension point 6 to anchorage points 9 on the foundation. The sheath may consist of an air-impervious material such as reinforced plastics, impregnated sailcloth, wood, metal or asbestos cement.
Patent GB-1337438-A (GB)
Title: Building materials
IPC: C04B26/04
Filed: 1971-11-29
Abstract: 1337438 Polypropylene building blocks SYNTHETIC FABRICS (SCOTLAND) Ltd 29 Nov 1971 [4 Sept 1970] 42401/70 Heading B5A A building block for use in load-bearing structures comprises polypropylene and/or a copolymer of polypropylene with another olefinically unsaturated monomer having aggregate material, e.g. clinker, embedded therein and disposed therethrough. The block may be moulded either (1) by admixing the plastics and aggregate, heating to melt the plastics, agitating to disperse the aggregate and then pouring into a mould and allowing to solidify; or (2) in the case of large-sized aggregate, by distributing this in a mould and filling up the mould with molten plastics, preferably from the bottom upwards to fill the aggregate interstices and avoid formation of air bubbles. Comprehensive test results are included.
Patent GB-1344290-A (GB)
IPC: D07B1/02
Filed: 1971-10-19
Abstract: 1344290 Braided ropes BRITISH ROPES Ltd 15 Sept 1972 [19 Oct 1971] 48608/71 Heading D1K A nylon rope is formed of braided pairs of strands 12, each strand comprising braided pairs of yarns 11. Each yarn may comprise a single filament, or filaments twisted in a helical construction, and each strand 12 may comprise a braided tubular casing containing either a braided tubular core or a core of straight parallel filaments. Other synthetic or natural fibres may also be used, singly or mixed.
Patent GB-1345244-A (GB)
Title: Sound system for model railways
IPC: A63H19/14
Filed: 1971-02-23
Abstract: 1345244 Toy railway systems G S OBERDORF 23 Feb 1971 5200/71 Heading A6S In a toy railway system of the kind in which the train is driven by a d.c. voltage applied between the track rails 6, 7, alternating audio signals are also applied to the rails from a tape recorder, a loudspeaker 2 carried on a model railway car 1 being connected through a capacitor 3 between a pair of conductive wheels (4), Fig. 3 (not shown) running respectively on the two track rails. The loudspeaker 2 is mounted on the bottom of the car 1 over an aperture so that the sounds are directed downwardly towards the track. The wheels (4) to which the speaker is connected are mounted at opposite ends of the car 1 and weights 16, 17 ensure good contact with the wheels.
Patent GB-1349935-A (GB)
Title: Fire extinguishing apparatus
IPC: A62C37/14
Filed: 1970-09-16
Abstract: 1349935 Thermo-sensitive heads FIREMASTER EXTINGUISHER Ltd 15 Sept 1971 [16 Sept 1970] 44167/70 Heading A5A A sensing head for fire extinguishing apparatus, e.g. a sprinkler system or an automatically-actuated pressurised extinguisher, is characterised by a plurality of temperaturesensitive elements in series, each being adapted to deform independently in response to a predetermined temperature rise, and at least one being a fluid-filled bulb. In Fig. 1 two liquid-filled glass bulbs 19 are used, and in Fig. 2 a soldered collar and sleeve, 56 and 57, in conjunction with bulb 58. The sensing head of Fig. 1 is mounted on pressurised container 10 and comprises plug 12 which fits in mouth 11 and has flange 13 to seat against O-ring seal 14. Threaded to neck 11 is member 15 from which extend four parallel rods 16 mounting at their other end ring 17 with aperture 18. Liquid-filled bulbs 19 are positioned end-to-end between plug 12 and ring 17 and maintain duct 11 closed until at least one ruptures. In Fig. 2 sensing head 50 has cage-like body 51 threaded to neck 52 of a pressurised extinguishant source. Duct 53 in 52 is closed by plug 54 having O-ring seal 55, and collar 56 is threaded in the upper part of body 51 co-axially with plug 54. Sleeve 57 is retained in collar 56 by solder and forms the first thermosensitive element. A second is formed by frangible bulb 58 positioned between plug 54 and sleeve 57.